Land part 2 of clang-format changes

Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu <nigelb@redhat.com>

20 files changed, 29016 insertions, 30886 deletions

diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c
index 129acbef0b5..f43a10bec2f 100644
--- a/xlators/cluster/dht/src/dht-common.c
+++ b/xlators/cluster/dht/src/dht-common.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 /* TODO: add NS locking */
 
 #include "glusterfs.h"
@@ -27,258 +26,237 @@
 
 int run_defrag = 0;
 
-
-
-int dht_link2 (xlator_t *this, xlator_t *dst_node, call_frame_t *frame,
-               int ret);
-
 int
-dht_removexattr2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame,
-                  int ret);
+dht_link2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
 
 int
-dht_setxattr2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame,
-               int ret);
-
+dht_removexattr2(xlator_t *this, xlator_t *subvol, call_frame_t *frame,
+                 int ret);
 
 int
-dht_rmdir_readdirp_do (call_frame_t *readdirp_frame, xlator_t *this);
-
+dht_setxattr2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret);
 
 int
-dht_common_xattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int32_t op_ret, int32_t op_errno, dict_t *dict,
-                        dict_t *xdata);
+dht_rmdir_readdirp_do(call_frame_t *readdirp_frame, xlator_t *this);
 
 int
-dht_set_file_xattr_req (xlator_t *this, loc_t *loc, dict_t *xattr_req);
+dht_common_xattrop_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int32_t op_ret, int32_t op_errno, dict_t *dict,
+                       dict_t *xdata);
 
 int
-dht_set_dir_xattr_req (xlator_t *this,  loc_t *loc, dict_t *xattr_req);
+dht_set_file_xattr_req(xlator_t *this, loc_t *loc, dict_t *xattr_req);
 
 int
-dht_do_fresh_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc);
+dht_set_dir_xattr_req(xlator_t *this, loc_t *loc, dict_t *xattr_req);
 
+int
+dht_do_fresh_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc);
 
 /* Sets the blocks and size values to fixed values. This is to be called
  * only for dirs. The caller is responsible for checking the type
  */
-int32_t dht_set_fixed_dir_stat (struct iatt *stat)
+int32_t
+dht_set_fixed_dir_stat(struct iatt *stat)
 {
-        if (stat) {
-                stat->ia_blocks = DHT_DIR_STAT_BLOCKS;
-                stat->ia_size = DHT_DIR_STAT_SIZE;
-                return 0;
-        }
-        return -1;
+    if (stat) {
+        stat->ia_blocks = DHT_DIR_STAT_BLOCKS;
+        stat->ia_size = DHT_DIR_STAT_SIZE;
+        return 0;
+    }
+    return -1;
 }
 
-
 /* Set both DHT_IATT_IN_XDATA_KEY and DHT_MODE_IN_XDATA_KEY
  * Use DHT_MODE_IN_XDATA_KEY if available. Else fall back to
  * DHT_IATT_IN_XDATA_KEY
  */
-int dht_request_iatt_in_xdata (xlator_t *this, dict_t *xattr_req)
+int
+dht_request_iatt_in_xdata(xlator_t *this, dict_t *xattr_req)
 {
-        int ret = -1;
+    int ret = -1;
 
-        ret = dict_set_int8 (xattr_req, DHT_MODE_IN_XDATA_KEY, 1);
-        ret = dict_set_int8 (xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
+    ret = dict_set_int8(xattr_req, DHT_MODE_IN_XDATA_KEY, 1);
+    ret = dict_set_int8(xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
 
-        /* At least one call succeeded */
-        return ret;
+    /* At least one call succeeded */
+    return ret;
 }
 
-
 /* Get both DHT_IATT_IN_XDATA_KEY and DHT_MODE_IN_XDATA_KEY
  * Use DHT_MODE_IN_XDATA_KEY if available, else fall back to
  * DHT_IATT_IN_XDATA_KEY
  * This will return a dummy iatt with only the mode and type set
  */
-int dht_read_iatt_from_xdata (xlator_t *this, dict_t *xdata,
-                              struct iatt *stbuf)
+int
+dht_read_iatt_from_xdata(xlator_t *this, dict_t *xdata, struct iatt *stbuf)
 {
-        int ret = -1;
-        int32_t mode = 0;
+    int ret = -1;
+    int32_t mode = 0;
 
-        ret = dict_get_int32 (xdata, DHT_MODE_IN_XDATA_KEY, &mode);
+    ret = dict_get_int32(xdata, DHT_MODE_IN_XDATA_KEY, &mode);
 
-        if (ret) {
-                ret = dict_get_bin (xdata, DHT_IATT_IN_XDATA_KEY,
-                                    (void **)&stbuf);
-        } else {
-                stbuf->ia_prot = ia_prot_from_st_mode (mode);
-                stbuf->ia_type = ia_type_from_st_mode (mode);
-        }
+    if (ret) {
+        ret = dict_get_bin(xdata, DHT_IATT_IN_XDATA_KEY, (void **)&stbuf);
+    } else {
+        stbuf->ia_prot = ia_prot_from_st_mode(mode);
+        stbuf->ia_type = ia_type_from_st_mode(mode);
+    }
 
-        return ret;
+    return ret;
 }
 
-
-
 int
-dht_rmdir_unlock (call_frame_t *frame, xlator_t *this);
-
-char *xattrs_to_heal[] = {
-        "user.",
-        POSIX_ACL_ACCESS_XATTR,
-        POSIX_ACL_DEFAULT_XATTR,
-        QUOTA_LIMIT_KEY,
-        QUOTA_LIMIT_OBJECTS_KEY,
-        GF_SELINUX_XATTR_KEY,
-        NULL
-};
+dht_rmdir_unlock(call_frame_t *frame, xlator_t *this);
 
+char *xattrs_to_heal[] = {"user.",
+                          POSIX_ACL_ACCESS_XATTR,
+                          POSIX_ACL_DEFAULT_XATTR,
+                          QUOTA_LIMIT_KEY,
+                          QUOTA_LIMIT_OBJECTS_KEY,
+                          GF_SELINUX_XATTR_KEY,
+                          NULL};
 
-char *dht_dbg_vxattrs[] = {
-        DHT_DBG_HASHED_SUBVOL_PATTERN,
-        NULL
-};
+char *dht_dbg_vxattrs[] = {DHT_DBG_HASHED_SUBVOL_PATTERN, NULL};
 
 /* Return true if key exists in array
-*/
+ */
 static gf_boolean_t
-dht_match_xattr (const char *key)
+dht_match_xattr(const char *key)
 {
-        return gf_get_index_by_elem (xattrs_to_heal, (char *)key) >= 0;
+    return gf_get_index_by_elem(xattrs_to_heal, (char *)key) >= 0;
 }
 
 int
-dht_aggregate_quota_xattr (dict_t *dst, char *key, data_t *value)
+dht_aggregate_quota_xattr(dict_t *dst, char *key, data_t *value)
 {
-        int              ret            = -1;
-        quota_meta_t    *meta_dst       = NULL;
-        quota_meta_t    *meta_src       = NULL;
-        int64_t         *size           = NULL;
-        int64_t          dst_dir_count  = 0;
-        int64_t          src_dir_count  = 0;
-
-        if (value == NULL) {
-                gf_msg ("dht", GF_LOG_WARNING, 0,
-                        DHT_MSG_DATA_NULL, "data value is NULL");
-                ret = -1;
-                goto out;
-        }
+    int ret = -1;
+    quota_meta_t *meta_dst = NULL;
+    quota_meta_t *meta_src = NULL;
+    int64_t *size = NULL;
+    int64_t dst_dir_count = 0;
+    int64_t src_dir_count = 0;
 
-        ret = dict_get_bin (dst, key, (void **)&meta_dst);
+    if (value == NULL) {
+        gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_DATA_NULL,
+               "data value is NULL");
+        ret = -1;
+        goto out;
+    }
+
+    ret = dict_get_bin(dst, key, (void **)&meta_dst);
+    if (ret < 0) {
+        meta_dst = GF_CALLOC(1, sizeof(quota_meta_t), gf_common_quota_meta_t);
+        if (meta_dst == NULL) {
+            gf_msg("dht", GF_LOG_WARNING, ENOMEM, DHT_MSG_NO_MEMORY,
+                   "Memory allocation failed");
+            ret = -1;
+            goto out;
+        }
+        ret = dict_set_bin(dst, key, meta_dst, sizeof(quota_meta_t));
         if (ret < 0) {
-                meta_dst = GF_CALLOC (1, sizeof (quota_meta_t),
-                                      gf_common_quota_meta_t);
-                if (meta_dst == NULL) {
-                        gf_msg ("dht", GF_LOG_WARNING, ENOMEM,
-                                DHT_MSG_NO_MEMORY,
-                                "Memory allocation failed");
-                        ret = -1;
-                        goto out;
-                }
-                ret = dict_set_bin (dst, key, meta_dst,
-                                    sizeof (quota_meta_t));
-                if (ret < 0) {
-                        gf_msg ("dht", GF_LOG_WARNING, EINVAL,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "dht aggregate dict set failed");
-                        GF_FREE (meta_dst);
-                        ret = -1;
-                        goto out;
-                }
+            gf_msg("dht", GF_LOG_WARNING, EINVAL, DHT_MSG_DICT_SET_FAILED,
+                   "dht aggregate dict set failed");
+            GF_FREE(meta_dst);
+            ret = -1;
+            goto out;
         }
+    }
 
-        if (value->len > sizeof (int64_t)) {
-                meta_src = data_to_bin (value);
+    if (value->len > sizeof(int64_t)) {
+        meta_src = data_to_bin(value);
 
-                meta_dst->size = hton64 (ntoh64 (meta_dst->size) +
-                                         ntoh64 (meta_src->size));
-                meta_dst->file_count = hton64 (ntoh64 (meta_dst->file_count) +
-                                               ntoh64 (meta_src->file_count));
+        meta_dst->size = hton64(ntoh64(meta_dst->size) +
+                                ntoh64(meta_src->size));
+        meta_dst->file_count = hton64(ntoh64(meta_dst->file_count) +
+                                      ntoh64(meta_src->file_count));
 
-                if (value->len > (2 * sizeof (int64_t))) {
-                        dst_dir_count = ntoh64 (meta_dst->dir_count);
-                        src_dir_count = ntoh64 (meta_src->dir_count);
+        if (value->len > (2 * sizeof(int64_t))) {
+            dst_dir_count = ntoh64(meta_dst->dir_count);
+            src_dir_count = ntoh64(meta_src->dir_count);
 
-                        if (src_dir_count > dst_dir_count)
-                                meta_dst->dir_count = meta_src->dir_count;
-                } else {
-                        meta_dst->dir_count = 0;
-                }
+            if (src_dir_count > dst_dir_count)
+                meta_dst->dir_count = meta_src->dir_count;
         } else {
-                size = data_to_bin (value);
-                meta_dst->size = hton64 (ntoh64 (meta_dst->size) +
-                                         ntoh64 (*size));
+            meta_dst->dir_count = 0;
         }
+    } else {
+        size = data_to_bin(value);
+        meta_dst->size = hton64(ntoh64(meta_dst->size) + ntoh64(*size));
+    }
 
-        ret = 0;
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
-
-int add_opt(char **optsp, const char *opt)
+int
+add_opt(char **optsp, const char *opt)
 {
-        char *newopts = NULL;
-        unsigned oldsize = 0;
-        unsigned newsize = 0;
+    char *newopts = NULL;
+    unsigned oldsize = 0;
+    unsigned newsize = 0;
 
-        if (*optsp == NULL)
-                newopts = gf_strdup (opt);
-        else {
-                oldsize = strlen (*optsp);
-                newsize = oldsize + 1 + strlen (opt) + 1;
-                newopts = GF_REALLOC (*optsp, newsize);
-                if (newopts)
-                        sprintf (newopts + oldsize, ",%s", opt);
-        }
-        if (newopts == NULL) {
-                gf_msg ("dht", GF_LOG_WARNING, 0,
-                        DHT_MSG_NO_MEMORY,
-                        "Error to add choices in buffer in add_opt");
-                return -1;
-        }
-        *optsp = newopts;
-        return 0;
+    if (*optsp == NULL)
+        newopts = gf_strdup(opt);
+    else {
+        oldsize = strlen(*optsp);
+        newsize = oldsize + 1 + strlen(opt) + 1;
+        newopts = GF_REALLOC(*optsp, newsize);
+        if (newopts)
+            sprintf(newopts + oldsize, ",%s", opt);
+    }
+    if (newopts == NULL) {
+        gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_NO_MEMORY,
+               "Error to add choices in buffer in add_opt");
+        return -1;
+    }
+    *optsp = newopts;
+    return 0;
 }
 
 /* Return Choice list from Split brain status */
 static char *
-getChoices (const char *value)
+getChoices(const char *value)
 {
-        int i = 0;
-        char *ptr = NULL;
-        char *tok = NULL;
-        char *result = NULL;
-        char *newval = NULL;
+    int i = 0;
+    char *ptr = NULL;
+    char *tok = NULL;
+    char *result = NULL;
+    char *newval = NULL;
 
-        ptr = strstr (value, "Choices:");
-        if (!ptr) {
-                result = ptr;
-                goto out;
-        }
+    ptr = strstr(value, "Choices:");
+    if (!ptr) {
+        result = ptr;
+        goto out;
+    }
 
-        newval = gf_strdup (ptr);
-        if (!newval) {
-                result = newval;
-                goto out;
-        }
+    newval = gf_strdup(ptr);
+    if (!newval) {
+        result = newval;
+        goto out;
+    }
 
-        tok = strtok (newval, ":");
-        if (!tok) {
-                result = tok;
-                goto out;
-        }
+    tok = strtok(newval, ":");
+    if (!tok) {
+        result = tok;
+        goto out;
+    }
 
-        while (tok) {
-                i++;
-                if (i == 2)
-                        break;
-                tok = strtok (NULL, ":");
-        }
+    while (tok) {
+        i++;
+        if (i == 2)
+            break;
+        tok = strtok(NULL, ":");
+    }
 
-        result = gf_strdup (tok);
+    result = gf_strdup(tok);
 
 out:
-        if (newval)
-                GF_FREE (newval);
+    if (newval)
+        GF_FREE(newval);
 
-        return result;
+    return result;
 }
 
 /* This function prepare a list of choices for key
@@ -291,248 +269,226 @@ out:
 */
 
 int
-dht_aggregate_split_brain_xattr (dict_t *dst, char *key, data_t *value)
+dht_aggregate_split_brain_xattr(dict_t *dst, char *key, data_t *value)
 {
+    int ret = 0;
+    char *oldvalue = NULL;
+    char *old_choice = NULL;
+    char *new_choice = NULL;
+    char *full_choice = NULL;
+    char *status = NULL;
 
-        int              ret            = 0;
-        char            *oldvalue       = NULL;
-        char            *old_choice     = NULL;
-        char            *new_choice     = NULL;
-        char            *full_choice    = NULL;
-        char            *status         = NULL;
+    if (value == NULL) {
+        gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_DATA_NULL,
+               "GF_AFR_SBRAIN_STATUS value is NULL");
+        ret = -1;
+        goto out;
+    }
+
+    ret = dict_get_str(dst, key, &oldvalue);
+    if (ret)
+        goto out;
 
-        if (value == NULL) {
-                gf_msg ("dht", GF_LOG_WARNING, 0,
-                        DHT_MSG_DATA_NULL,
-                        "GF_AFR_SBRAIN_STATUS value is NULL");
+    /* skip code that is irrelevant if !oldvalue */
+    if (!oldvalue)
+        goto out;
+
+    if (strstr(oldvalue, "not")) {
+        gf_msg_debug("dht", 0, "Need to update split-brain status in dict");
+        ret = -1;
+        goto out;
+    }
+    if (strstr(oldvalue, "metadata-split-brain:yes") &&
+        (strstr(oldvalue, "data-split-brain:no"))) {
+        if (strstr(value->data, "not")) {
+            gf_msg_debug("dht", 0, "No need to update split-brain status");
+            ret = 0;
+            goto out;
+        }
+        if (strstr(value->data, "yes") &&
+            (strncmp(oldvalue, value->data, strlen(oldvalue)))) {
+            old_choice = getChoices(oldvalue);
+            if (!old_choice) {
+                gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_NO_MEMORY,
+                       "Error to get choices");
                 ret = -1;
                 goto out;
-        }
+            }
 
-        ret = dict_get_str (dst, key, &oldvalue);
-        if (ret)
+            ret = add_opt(&full_choice, old_choice);
+            if (ret) {
+                gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_NO_MEMORY,
+                       "Error to add choices");
+                ret = -1;
                 goto out;
+            }
 
-        /* skip code that is irrelevant if !oldvalue */
-        if (!oldvalue)
+            new_choice = getChoices(value->data);
+            if (!new_choice) {
+                gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_NO_MEMORY,
+                       "Error to get choices");
+                ret = -1;
                 goto out;
+            }
 
-        if (strstr (oldvalue, "not")) {
-                gf_msg_debug ("dht", 0,
-                              "Need to update split-brain status in dict");
+            ret = add_opt(&full_choice, new_choice);
+            if (ret) {
+                gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_NO_MEMORY,
+                       "Error to add choices ");
                 ret = -1;
                 goto out;
+            }
+            ret = gf_asprintf(&status,
+                              "data-split-brain:%s    "
+                              "metadata-split-brain:%s   Choices:%s",
+                              "no", "yes", full_choice);
+
+            if (-1 == ret) {
+                gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_NO_MEMORY,
+                       "Error to prepare status ");
+                goto out;
+            }
+            ret = dict_set_dynstr(dst, key, status);
+            if (ret) {
+                gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                       "Failed to set full choice");
+            }
         }
-        if (strstr (oldvalue, "metadata-split-brain:yes")
-            && (strstr (oldvalue, "data-split-brain:no"))) {
-                if (strstr (value->data, "not")) {
-                        gf_msg_debug ("dht", 0,
-                                      "No need to update split-brain status");
-                        ret = 0;
-                        goto out;
-                }
-                if (strstr (value->data, "yes") &&
-                        (strncmp (oldvalue, value->data, strlen(oldvalue)))) {
-                        old_choice = getChoices (oldvalue);
-                        if (!old_choice) {
-                                gf_msg ("dht", GF_LOG_WARNING, 0,
-                                        DHT_MSG_NO_MEMORY,
-                                        "Error to get choices");
-                                ret = -1;
-                                goto out;
-                        }
-
-                        ret = add_opt (&full_choice, old_choice);
-                        if (ret) {
-                                gf_msg ("dht", GF_LOG_WARNING, 0,
-                                         DHT_MSG_NO_MEMORY,
-                                         "Error to add choices");
-                                ret = -1;
-                                goto out;
-                        }
-
-                        new_choice = getChoices (value->data);
-                        if (!new_choice) {
-                                gf_msg ("dht", GF_LOG_WARNING, 0,
-                                        DHT_MSG_NO_MEMORY,
-                                        "Error to get choices");
-                                ret = -1;
-                                goto out;
-                        }
-
-                        ret = add_opt (&full_choice, new_choice);
-                        if (ret) {
-                                gf_msg ("dht", GF_LOG_WARNING, 0,
-                                       DHT_MSG_NO_MEMORY,
-                                       "Error to add choices ");
-                                ret = -1;
-                                goto out;
-                        }
-                        ret = gf_asprintf (&status,
-                                           "data-split-brain:%s    "
-                                           "metadata-split-brain:%s   Choices:%s",
-                                           "no", "yes", full_choice);
-
-                        if (-1 == ret) {
-                                gf_msg ("dht", GF_LOG_WARNING, 0,
-                                                 DHT_MSG_NO_MEMORY,
-                                                "Error to prepare status ");
-                                        goto out;
-                                }
-                        ret = dict_set_dynstr (dst, key, status);
-                        if (ret) {
-                                gf_msg ("dht", GF_LOG_WARNING, 0,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "Failed to set full choice");
-                        }
-                }
-        }
+    }
 
 out:
-        if (old_choice)
-                GF_FREE (old_choice);
-        if (new_choice)
-                GF_FREE (new_choice);
-        if (full_choice)
-                GF_FREE (full_choice);
+    if (old_choice)
+        GF_FREE(old_choice);
+    if (new_choice)
+        GF_FREE(new_choice);
+    if (full_choice)
+        GF_FREE(full_choice);
 
-        return ret;
+    return ret;
 }
 
-
-
 int
-dht_aggregate (dict_t *this, char *key, data_t *value, void *data)
+dht_aggregate(dict_t *this, char *key, data_t *value, void *data)
 {
-        dict_t          *dst            = NULL;
-        int32_t          ret            = -1;
-        data_t          *dict_data      = NULL;
+    dict_t *dst = NULL;
+    int32_t ret = -1;
+    data_t *dict_data = NULL;
 
-        dst = data;
+    dst = data;
 
-        /* compare split brain xattr only */
-        if (strcmp (key, GF_AFR_SBRAIN_STATUS) == 0) {
-                ret = dht_aggregate_split_brain_xattr(dst, key, value);
+    /* compare split brain xattr only */
+    if (strcmp(key, GF_AFR_SBRAIN_STATUS) == 0) {
+        ret = dht_aggregate_split_brain_xattr(dst, key, value);
+        if (!ret)
+            goto out;
+    } else if (strcmp(key, QUOTA_SIZE_KEY) == 0) {
+        ret = dht_aggregate_quota_xattr(dst, key, value);
+        if (ret) {
+            gf_msg("dht", GF_LOG_WARNING, 0,
+                   DHT_MSG_AGGREGATE_QUOTA_XATTR_FAILED,
+                   "Failed to aggregate quota xattr");
+        }
+        goto out;
+    } else if (fnmatch(GF_XATTR_STIME_PATTERN, key, FNM_NOESCAPE) == 0) {
+        ret = gf_get_min_stime(THIS, dst, key, value);
+        goto out;
+    } else {
+        /* compare user xattrs only */
+        if (!strncmp(key, "user.", SLEN("user."))) {
+            ret = dict_lookup(dst, key, &dict_data);
+            if (!ret && dict_data && value) {
+                ret = is_data_equal(dict_data, value);
                 if (!ret)
-                        goto out;
-        } else if (strcmp (key, QUOTA_SIZE_KEY) == 0) {
-                ret = dht_aggregate_quota_xattr (dst, key, value);
-                if (ret) {
-                        gf_msg ("dht", GF_LOG_WARNING, 0,
-                                DHT_MSG_AGGREGATE_QUOTA_XATTR_FAILED,
-                                "Failed to aggregate quota xattr");
-                }
-                goto out;
-        } else if (fnmatch (GF_XATTR_STIME_PATTERN, key, FNM_NOESCAPE) == 0) {
-                ret = gf_get_min_stime (THIS, dst, key, value);
-                goto out;
-        } else {
-                /* compare user xattrs only */
-                if (!strncmp (key, "user.", SLEN ("user."))) {
-                        ret = dict_lookup (dst, key, &dict_data);
-                        if (!ret && dict_data && value) {
-                                ret = is_data_equal (dict_data, value);
-                                if (!ret)
-                                        gf_msg_debug ("dht", 0,
-                                                      "xattr mismatch for %s",
-                                                      key);
-                        }
-                }
+                    gf_msg_debug("dht", 0, "xattr mismatch for %s", key);
+            }
         }
+    }
 
-        ret = dict_set (dst, key, value);
-        if (ret) {
-                gf_msg ("dht", GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value: key = %s",
-                        key);
-        }
+    ret = dict_set(dst, key, value);
+    if (ret) {
+        gf_msg("dht", GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value: key = %s", key);
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
-
 void
-dht_aggregate_xattr (dict_t *dst, dict_t *src)
+dht_aggregate_xattr(dict_t *dst, dict_t *src)
 {
-        if ((dst == NULL) || (src == NULL)) {
-                goto out;
-        }
+    if ((dst == NULL) || (src == NULL)) {
+        goto out;
+    }
 
-        dict_foreach (src, dht_aggregate, dst);
+    dict_foreach(src, dht_aggregate, dst);
 out:
-        return;
+    return;
 }
 
 /* Code to save hashed subvol on inode ctx as a mds subvol
-*/
+ */
 int
-dht_inode_ctx_mdsvol_set (inode_t *inode, xlator_t *this, xlator_t *mds_subvol)
+dht_inode_ctx_mdsvol_set(inode_t *inode, xlator_t *this, xlator_t *mds_subvol)
 {
-        dht_inode_ctx_t         *ctx            = NULL;
-        int                      ret            = -1;
-        uint64_t                 ctx_int        = 0;
-        gf_boolean_t             ctx_free       = _gf_false;
-
+    dht_inode_ctx_t *ctx = NULL;
+    int ret = -1;
+    uint64_t ctx_int = 0;
+    gf_boolean_t ctx_free = _gf_false;
 
-        LOCK (&inode->lock);
-        {
-                ret = __inode_ctx_get (inode, this , &ctx_int);
-                if (ctx_int) {
-                        ctx = (dht_inode_ctx_t *)ctx_int;
-                        ctx->mds_subvol = mds_subvol;
-                } else {
-                        ctx = GF_CALLOC (1, sizeof(*ctx), gf_dht_mt_inode_ctx_t);
-                        if (!ctx)
-                                goto unlock;
-                        ctx->mds_subvol = mds_subvol;
-                        ctx_free        = _gf_true;
-                        ctx_int = (long) ctx;
-                        ret =  __inode_ctx_set (inode, this, &ctx_int);
-                }
-        }
+    LOCK(&inode->lock);
+    {
+        ret = __inode_ctx_get(inode, this, &ctx_int);
+        if (ctx_int) {
+            ctx = (dht_inode_ctx_t *)ctx_int;
+            ctx->mds_subvol = mds_subvol;
+        } else {
+            ctx = GF_CALLOC(1, sizeof(*ctx), gf_dht_mt_inode_ctx_t);
+            if (!ctx)
+                goto unlock;
+            ctx->mds_subvol = mds_subvol;
+            ctx_free = _gf_true;
+            ctx_int = (long)ctx;
+            ret = __inode_ctx_set(inode, this, &ctx_int);
+        }
+    }
 unlock:
-        UNLOCK (&inode->lock);
-        if (ret && ctx_free)
-                GF_FREE (ctx);
-        return ret;
+    UNLOCK(&inode->lock);
+    if (ret && ctx_free)
+        GF_FREE(ctx);
+    return ret;
 }
 
 /*Code to get mds subvol from inode ctx */
 
 int
-dht_inode_ctx_mdsvol_get (inode_t *inode, xlator_t *this, xlator_t **mdsvol)
+dht_inode_ctx_mdsvol_get(inode_t *inode, xlator_t *this, xlator_t **mdsvol)
 {
-        dht_inode_ctx_t         *ctx            = NULL;
-        int                      ret            = -1;
+    dht_inode_ctx_t *ctx = NULL;
+    int ret = -1;
 
-        if (!mdsvol)
-                return ret;
+    if (!mdsvol)
+        return ret;
 
-        if (__is_root_gfid(inode->gfid)) {
-                (*mdsvol) = FIRST_CHILD (this);
-                return 0;
-        }
+    if (__is_root_gfid(inode->gfid)) {
+        (*mdsvol) = FIRST_CHILD(this);
+        return 0;
+    }
 
-        ret = dht_inode_ctx_get (inode, this, &ctx);
+    ret = dht_inode_ctx_get(inode, this, &ctx);
 
-        if (!ret && ctx) {
-                if (ctx->mds_subvol) {
-                        *mdsvol = ctx->mds_subvol;
-                        ret = 0;
-                } else {
-                        ret = -1;
-                }
+    if (!ret && ctx) {
+        if (ctx->mds_subvol) {
+            *mdsvol = ctx->mds_subvol;
+            ret = 0;
+        } else {
+            ret = -1;
         }
+    }
 
-        return ret;
+    return ret;
 }
 
-
-
-
-
 /* TODO:
    - use volumename in xattr instead of "dht"
    - use NS locks
@@ -540,293 +496,277 @@ dht_inode_ctx_mdsvol_get (inode_t *inode, xlator_t *this, xlator_t **mdsvol)
    - complete linkfile selfheal
 */
 
-
 int
-dht_lookup_selfheal_cbk (call_frame_t *frame, void *cookie,
-                         xlator_t *this,
-                         int op_ret, int op_errno, dict_t *xdata)
+dht_lookup_selfheal_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        dht_layout_t *layout = NULL;
-        dht_conf_t   *conf   = NULL;
-        int           ret = -1;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
 
-        local = frame->local;
-        conf  = this->private;
-        ret = op_ret;
+    local = frame->local;
+    conf = this->private;
+    ret = op_ret;
 
-        FRAME_SU_UNDO (frame, dht_local_t);
+    FRAME_SU_UNDO(frame, dht_local_t);
 
-        if (ret == 0) {
-                layout = local->selfheal.layout;
-                ret = dht_layout_set (this, local->inode, layout);
-        }
+    if (ret == 0) {
+        layout = local->selfheal.layout;
+        ret = dht_layout_set(this, local->inode, layout);
+    }
 
-        dht_inode_ctx_time_update (local->inode, this, &local->stbuf, 1);
-        if (local->loc.parent) {
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           &local->postparent, 1);
-        }
+    dht_inode_ctx_time_update(local->inode, this, &local->stbuf, 1);
+    if (local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, &local->postparent,
+                                  1);
+    }
 
-        DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-        dht_set_fixed_dir_stat (&local->postparent);
-        /* Delete mds xattr at the time of STACK UNWIND */
-        GF_REMOVE_INTERNAL_XATTR (conf->mds_xattr_key, local->xattr);
+    DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+    dht_set_fixed_dir_stat(&local->postparent);
+    /* Delete mds xattr at the time of STACK UNWIND */
+    GF_REMOVE_INTERNAL_XATTR(conf->mds_xattr_key, local->xattr);
 
-        DHT_STACK_UNWIND (lookup, frame, ret, local->op_errno, local->inode,
-                          &local->stbuf, local->xattr, &local->postparent);
+    DHT_STACK_UNWIND(lookup, frame, ret, local->op_errno, local->inode,
+                     &local->stbuf, local->xattr, &local->postparent);
 
 out:
-        return ret;
-}
-
-int
-dht_discover_complete (xlator_t *this, call_frame_t *discover_frame)
-{
-        dht_local_t     *local           = NULL;
-        dht_local_t     *heal_local      = NULL;
-        call_frame_t    *main_frame      = NULL;
-        call_frame_t    *heal_frame      = NULL;
-        int              op_errno        = 0;
-        int              ret             = -1;
-        dht_layout_t    *layout          = NULL;
-        dht_conf_t      *conf            = NULL;
-        uint32_t         vol_commit_hash = 0;
-        xlator_t        *source          = NULL;
-        int              heal_path       = 0;
-        int              error_while_marking_mds   = 0;
-        int              i               = 0;
-        loc_t            loc             = {0 };
-        int8_t           is_read_only    = 0, layout_anomalies = 0;
-        char             gfid_local[GF_UUID_BUF_SIZE] = {0};
-
-        local = discover_frame->local;
-        layout = local->layout;
-        conf = this->private;
-        gf_uuid_unparse(local->gfid, gfid_local);
-
-        LOCK(&discover_frame->lock);
-        {
-                main_frame = local->main_frame;
-                local->main_frame = NULL;
-        }
-        UNLOCK(&discover_frame->lock);
-
-        if (!main_frame)
-                return 0;
-
-        /* Code to update all extended attributed from
-           subvol to local->xattr on that internal xattr has found
-        */
-        if (conf->subvolume_cnt == 1)
-                local->need_xattr_heal = 0;
-        if (local->need_xattr_heal && (local->mds_xattr)) {
-                dht_dir_set_heal_xattr (this, local, local->xattr,
-                                        local->mds_xattr, NULL, NULL);
-                dict_unref (local->mds_xattr);
-                local->mds_xattr = NULL;
-        }
-
-        ret = dict_get_int8 (local->xattr_req, QUOTA_READ_ONLY_KEY,
-                             &is_read_only);
-        if (ret < 0)
-                gf_msg_debug (this->name, 0, "key = %s not present in dict",
-                              QUOTA_READ_ONLY_KEY);
-
-        if (local->file_count && local->dir_count) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_FILE_TYPE_MISMATCH,
-                        "path %s exists as a file on one subvolume "
-                        "and directory on another. "
-                        "Please fix it manually",
-                        local->loc.path);
-                op_errno = EIO;
-                goto out;
-        }
-
-        if (local->cached_subvol) {
-                ret = dht_layout_preset (this, local->cached_subvol,
-                                         local->inode);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_LAYOUT_SET_FAILED,
-                                "failed to set layout for subvolume %s",
-                                local->cached_subvol ? local->cached_subvol->name : "<nil>");
-                        op_errno = EINVAL;
-                        goto out;
-                }
-        } else {
-                ret = dht_layout_normalize (this, &local->loc, layout);
-                if ((ret < 0) || ((ret > 0) && (local->op_ret != 0))) {
-                        /* either the layout is incorrect or the directory is
-                         * not found even in one subvolume.
-                         */
-                        gf_msg_debug (this->name, 0,
-                                      "normalizing failed on %s "
-                                      "(overlaps/holes present: %s, "
-                                      "ENOENT errors: %d)", local->loc.path,
-                                      (ret < 0) ? "yes" : "no", (ret > 0) ? ret : 0);
-                        layout_anomalies = 1;
-                } else if (local->inode) {
-                        dht_layout_set (this, local->inode, layout);
-                }
-        }
+    return ret;
+}
+
+int
+dht_discover_complete(xlator_t *this, call_frame_t *discover_frame)
+{
+    dht_local_t *local = NULL;
+    dht_local_t *heal_local = NULL;
+    call_frame_t *main_frame = NULL;
+    call_frame_t *heal_frame = NULL;
+    int op_errno = 0;
+    int ret = -1;
+    dht_layout_t *layout = NULL;
+    dht_conf_t *conf = NULL;
+    uint32_t vol_commit_hash = 0;
+    xlator_t *source = NULL;
+    int heal_path = 0;
+    int error_while_marking_mds = 0;
+    int i = 0;
+    loc_t loc = {0};
+    int8_t is_read_only = 0, layout_anomalies = 0;
+    char gfid_local[GF_UUID_BUF_SIZE] = {0};
+
+    local = discover_frame->local;
+    layout = local->layout;
+    conf = this->private;
+    gf_uuid_unparse(local->gfid, gfid_local);
+
+    LOCK(&discover_frame->lock);
+    {
+        main_frame = local->main_frame;
+        local->main_frame = NULL;
+    }
+    UNLOCK(&discover_frame->lock);
+
+    if (!main_frame)
+        return 0;
+
+    /* Code to update all extended attributed from
+       subvol to local->xattr on that internal xattr has found
+    */
+    if (conf->subvolume_cnt == 1)
+        local->need_xattr_heal = 0;
+    if (local->need_xattr_heal && (local->mds_xattr)) {
+        dht_dir_set_heal_xattr(this, local, local->xattr, local->mds_xattr,
+                               NULL, NULL);
+        dict_unref(local->mds_xattr);
+        local->mds_xattr = NULL;
+    }
+
+    ret = dict_get_int8(local->xattr_req, QUOTA_READ_ONLY_KEY, &is_read_only);
+    if (ret < 0)
+        gf_msg_debug(this->name, 0, "key = %s not present in dict",
+                     QUOTA_READ_ONLY_KEY);
+
+    if (local->file_count && local->dir_count) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_FILE_TYPE_MISMATCH,
+               "path %s exists as a file on one subvolume "
+               "and directory on another. "
+               "Please fix it manually",
+               local->loc.path);
+        op_errno = EIO;
+        goto out;
+    }
 
-        if (!conf->vch_forced) {
-                ret = dict_get_uint32 (local->xattr,
-                                       conf->commithash_xattr_name,
-                                       &vol_commit_hash);
-                if (ret == 0) {
-                        conf->vol_commit_hash = vol_commit_hash;
-                }
+    if (local->cached_subvol) {
+        ret = dht_layout_preset(this, local->cached_subvol, local->inode);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_SET_FAILED,
+                   "failed to set layout for subvolume %s",
+                   local->cached_subvol ? local->cached_subvol->name : "<nil>");
+            op_errno = EINVAL;
+            goto out;
+        }
+    } else {
+        ret = dht_layout_normalize(this, &local->loc, layout);
+        if ((ret < 0) || ((ret > 0) && (local->op_ret != 0))) {
+            /* either the layout is incorrect or the directory is
+             * not found even in one subvolume.
+             */
+            gf_msg_debug(this->name, 0,
+                         "normalizing failed on %s "
+                         "(overlaps/holes present: %s, "
+                         "ENOENT errors: %d)",
+                         local->loc.path, (ret < 0) ? "yes" : "no",
+                         (ret > 0) ? ret : 0);
+            layout_anomalies = 1;
+        } else if (local->inode) {
+            dht_layout_set(this, local->inode, layout);
+        }
+    }
+
+    if (!conf->vch_forced) {
+        ret = dict_get_uint32(local->xattr, conf->commithash_xattr_name,
+                              &vol_commit_hash);
+        if (ret == 0) {
+            conf->vol_commit_hash = vol_commit_hash;
         }
+    }
 
-        if (IA_ISDIR (local->stbuf.ia_type) && !is_read_only) {
-                for (i = 0; i < layout->cnt; i++) {
-                       if (!source && !layout->list[i].err)
-                                source = layout->list[i].xlator;
-                        if (layout->list[i].err == ENOENT ||
-                            layout->list[i].err == ESTALE) {
-                                heal_path = 1;
-                        }
-
-                        if (source && heal_path)
-                                break;
-                }
-        }
+    if (IA_ISDIR(local->stbuf.ia_type) && !is_read_only) {
+        for (i = 0; i < layout->cnt; i++) {
+            if (!source && !layout->list[i].err)
+                source = layout->list[i].xlator;
+            if (layout->list[i].err == ENOENT ||
+                layout->list[i].err == ESTALE) {
+                heal_path = 1;
+            }
 
-        if (IA_ISDIR (local->stbuf.ia_type)) {
-                /* Call function to save hashed subvol on inode ctx if
-                   internal mds xattr is not present and all subvols are up
-                */
-                if (!local->op_ret && !__is_root_gfid (local->stbuf.ia_gfid))
-                        (void) dht_common_mark_mdsxattr (discover_frame,
-                                                         &error_while_marking_mds, 1);
-
-                if (local->need_xattr_heal && !heal_path) {
-                        local->need_xattr_heal = 0;
-                        ret =  dht_dir_xattr_heal (this, local);
-                        if (ret)
-                                gf_msg (this->name, GF_LOG_ERROR,
-                                        ret,
-                                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                        "xattr heal failed for "
-                                        "directory  gfid is %s ",
-                                        gfid_local);
-                }
+            if (source && heal_path)
+                break;
         }
+    }
 
-        if (source && (heal_path || layout_anomalies || error_while_marking_mds)) {
-                gf_uuid_copy (loc.gfid, local->gfid);
-                if (gf_uuid_is_null (loc.gfid)) {
-                        goto done;
-                }
-
-                if (local->inode)
-                        loc.inode = inode_ref (local->inode);
-                else
-                        goto done;
-
-               heal_frame = create_frame (this, this->ctx->pool);
-               if (heal_frame) {
-                        heal_local = dht_local_init (heal_frame, &loc,
-                                                     NULL, 0);
-                        if (!heal_local)
-                                goto cleanup;
-
-                        gf_uuid_copy (heal_local->gfid, local->gfid);
-                        heal_frame->cookie = source;
-                        heal_local->xattr = dict_ref (local->xattr);
-                        heal_local->stbuf = local->stbuf;
-                        heal_local->postparent = local->postparent;
-                        heal_local->inode = inode_ref (loc.inode);
-                        heal_local->main_frame = main_frame;
-                        FRAME_SU_DO (heal_frame, dht_local_t);
-                        ret = synctask_new (this->ctx->env,
-                                            dht_heal_full_path,
-                                            dht_heal_full_path_done,
-                                            heal_frame, heal_frame);
-                        if (!ret) {
-                                loc_wipe (&loc);
-                                return 0;
-                        }
-                        /*
-                         * Failed to spawn the synctask. Returning
-                         * with out doing heal.
-                         */
-cleanup:
-                        loc_wipe (&loc);
-                        DHT_STACK_DESTROY (heal_frame);
-                }
-
-        }
+    if (IA_ISDIR(local->stbuf.ia_type)) {
+        /* Call function to save hashed subvol on inode ctx if
+           internal mds xattr is not present and all subvols are up
+        */
+        if (!local->op_ret && !__is_root_gfid(local->stbuf.ia_gfid))
+            (void)dht_common_mark_mdsxattr(discover_frame,
+                                           &error_while_marking_mds, 1);
+
+        if (local->need_xattr_heal && !heal_path) {
+            local->need_xattr_heal = 0;
+            ret = dht_dir_xattr_heal(this, local);
+            if (ret)
+                gf_msg(this->name, GF_LOG_ERROR, ret,
+                       DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                       "xattr heal failed for "
+                       "directory  gfid is %s ",
+                       gfid_local);
+        }
+    }
+
+    if (source && (heal_path || layout_anomalies || error_while_marking_mds)) {
+        gf_uuid_copy(loc.gfid, local->gfid);
+        if (gf_uuid_is_null(loc.gfid)) {
+            goto done;
+        }
+
+        if (local->inode)
+            loc.inode = inode_ref(local->inode);
+        else
+            goto done;
+
+        heal_frame = create_frame(this, this->ctx->pool);
+        if (heal_frame) {
+            heal_local = dht_local_init(heal_frame, &loc, NULL, 0);
+            if (!heal_local)
+                goto cleanup;
+
+            gf_uuid_copy(heal_local->gfid, local->gfid);
+            heal_frame->cookie = source;
+            heal_local->xattr = dict_ref(local->xattr);
+            heal_local->stbuf = local->stbuf;
+            heal_local->postparent = local->postparent;
+            heal_local->inode = inode_ref(loc.inode);
+            heal_local->main_frame = main_frame;
+            FRAME_SU_DO(heal_frame, dht_local_t);
+            ret = synctask_new(this->ctx->env, dht_heal_full_path,
+                               dht_heal_full_path_done, heal_frame, heal_frame);
+            if (!ret) {
+                loc_wipe(&loc);
+                return 0;
+            }
+            /*
+             * Failed to spawn the synctask. Returning
+             * with out doing heal.
+             */
+        cleanup:
+            loc_wipe(&loc);
+            DHT_STACK_DESTROY(heal_frame);
+        }
+    }
 done:
-        dht_set_fixed_dir_stat (&local->postparent);
-        /* Delete mds xattr at the time of STACK UNWIND */
-        if (local->xattr)
-                GF_REMOVE_INTERNAL_XATTR (conf->mds_xattr_key, local->xattr);
+    dht_set_fixed_dir_stat(&local->postparent);
+    /* Delete mds xattr at the time of STACK UNWIND */
+    if (local->xattr)
+        GF_REMOVE_INTERNAL_XATTR(conf->mds_xattr_key, local->xattr);
 
-        DHT_STACK_UNWIND (lookup, main_frame, local->op_ret, local->op_errno,
-                          local->inode, &local->stbuf, local->xattr,
-                          &local->postparent);
-        return 0;
+    DHT_STACK_UNWIND(lookup, main_frame, local->op_ret, local->op_errno,
+                     local->inode, &local->stbuf, local->xattr,
+                     &local->postparent);
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (lookup, main_frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL);
+    DHT_STACK_UNWIND(lookup, main_frame, -1, op_errno, NULL, NULL, NULL, NULL);
 
-        return ret;
+    return ret;
 }
 
 int
-dht_common_mark_mdsxattr_cbk (call_frame_t *frame, void *cookie,
-                              xlator_t *this, int op_ret, int op_errno,
-                              dict_t *xdata)
+dht_common_mark_mdsxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                             int op_ret, int op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev  = cookie;
-        int           ret   = -1;
-        dht_conf_t   *conf  = 0;
-        dht_layout_t *layout = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *prev = cookie;
+    int ret = -1;
+    dht_conf_t *conf = 0;
+    dht_layout_t *layout = NULL;
 
-        GF_VALIDATE_OR_GOTO (this->name, frame, out);
-        GF_VALIDATE_OR_GOTO (this->name, frame->local, out);
+    GF_VALIDATE_OR_GOTO(this->name, frame, out);
+    GF_VALIDATE_OR_GOTO(this->name, frame->local, out);
 
-        local = frame->local;
-        conf = this->private;
-        layout = local->selfheal.layout;
+    local = frame->local;
+    conf = this->private;
+    layout = local->selfheal.layout;
 
-        if (op_ret) {
-                gf_msg_debug (this->name, op_ret,
-                              "Failed to set %s on the MDS %s for path %s. ",
-                               conf->mds_xattr_key, prev->name, local->loc.path);
-        } else {
-                /* Save mds subvol on inode ctx */
-                ret = dht_inode_ctx_mdsvol_set (local->inode, this, prev);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_SET_INODE_CTX_FAILED,
-                                "Failed to set mds subvol on inode ctx"
-                                " %s for %s ", prev->name,
-                                local->loc.path);
-                }
-        }
-        if (!local->mds_heal_fresh_lookup && layout) {
-                dht_selfheal_dir_setattr (frame, &local->loc, &local->stbuf,
-                                          0xffffffff, layout);
-        }
+    if (op_ret) {
+        gf_msg_debug(this->name, op_ret,
+                     "Failed to set %s on the MDS %s for path %s. ",
+                     conf->mds_xattr_key, prev->name, local->loc.path);
+    } else {
+        /* Save mds subvol on inode ctx */
+        ret = dht_inode_ctx_mdsvol_set(local->inode, this, prev);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SET_INODE_CTX_FAILED,
+                   "Failed to set mds subvol on inode ctx"
+                   " %s for %s ",
+                   prev->name, local->loc.path);
+        }
+    }
+    if (!local->mds_heal_fresh_lookup && layout) {
+        dht_selfheal_dir_setattr(frame, &local->loc, &local->stbuf, 0xffffffff,
+                                 layout);
+    }
 out:
-        if (local && local->mds_heal_fresh_lookup)
-                DHT_STACK_DESTROY (frame);
-        return 0;
+    if (local && local->mds_heal_fresh_lookup)
+        DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
-
-
 /* Common function call by revalidate/selfheal code path to populate
    internal xattr if it is not present, mark_during_fresh_lookup value
    determines either function is call by revalidate_cbk(discover_complete)
@@ -842,1508 +782,1416 @@ out:
    penalty.
 */
 int
-dht_common_mark_mdsxattr (call_frame_t *frame, int *errst, int mark_during_fresh_lookup)
-{
-        dht_local_t  *local          = NULL;
-        xlator_t     *this           = NULL;
-        xlator_t     *hashed_subvol  = NULL;
-        int           ret            = 0;
-        int           i              = 0;
-        dict_t       *xattrs         = NULL;
-        char          gfid_local[GF_UUID_BUF_SIZE] = {0,};
-        int32_t       zero[1]        = {0};
-        dht_conf_t   *conf           = 0;
-        dht_layout_t *layout         = NULL;
-        dht_local_t  *copy_local     = NULL;
-        call_frame_t *xattr_frame    = NULL;
-        gf_boolean_t  vol_down       = _gf_false;
-
-        this = frame->this;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, frame->local, out);
-        GF_VALIDATE_OR_GOTO (this->name, this->private, out);
-
-        local = frame->local;
-        conf = this->private;
-        layout = local->selfheal.layout;
-        local->mds_heal_fresh_lookup = mark_during_fresh_lookup;
-        gf_uuid_unparse(local->gfid, gfid_local);
-
-        /* Code to update hashed subvol consider as a mds subvol
-           and wind a setxattr call on hashed subvol to update
-           internal xattr
+dht_common_mark_mdsxattr(call_frame_t *frame, int *errst,
+                         int mark_during_fresh_lookup)
+{
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    xlator_t *hashed_subvol = NULL;
+    int ret = 0;
+    int i = 0;
+    dict_t *xattrs = NULL;
+    char gfid_local[GF_UUID_BUF_SIZE] = {
+        0,
+    };
+    int32_t zero[1] = {0};
+    dht_conf_t *conf = 0;
+    dht_layout_t *layout = NULL;
+    dht_local_t *copy_local = NULL;
+    call_frame_t *xattr_frame = NULL;
+    gf_boolean_t vol_down = _gf_false;
+
+    this = frame->this;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, frame->local, out);
+    GF_VALIDATE_OR_GOTO(this->name, this->private, out);
+
+    local = frame->local;
+    conf = this->private;
+    layout = local->selfheal.layout;
+    local->mds_heal_fresh_lookup = mark_during_fresh_lookup;
+    gf_uuid_unparse(local->gfid, gfid_local);
+
+    /* Code to update hashed subvol consider as a mds subvol
+       and wind a setxattr call on hashed subvol to update
+       internal xattr
+    */
+    if (!local->xattr || !dict_get(local->xattr, conf->mds_xattr_key)) {
+        /* It means no internal MDS xattr has been set yet
+         */
+        /* Check the status of all subvol are up while call
+           this function call by lookup code path
         */
-        if (!local->xattr || !dict_get (local->xattr, conf->mds_xattr_key)) {
-                /* It means no internal MDS xattr has been set yet
-                */
-                /* Check the status of all subvol are up while call
-                   this function call by lookup code path
-                */
-                if (mark_during_fresh_lookup) {
-                        for (i = 0; i < conf->subvolume_cnt; i++) {
-                                if (!conf->subvolume_status[i]) {
-                                        vol_down = _gf_true;
-                                        break;
-                                }
-                        }
-                        if (vol_down) {
-                                gf_msg_debug (this->name, 0,
-                                              "subvol %s is down. Unable to "
-                                              " save mds subvol on inode for "
-                                              " path %s gfid is %s " ,
-                                              conf->subvolumes[i]->name,
-                                              local->loc.path, gfid_local);
-                                goto out;
-                        }
+        if (mark_during_fresh_lookup) {
+            for (i = 0; i < conf->subvolume_cnt; i++) {
+                if (!conf->subvolume_status[i]) {
+                    vol_down = _gf_true;
+                    break;
                 }
+            }
+            if (vol_down) {
+                gf_msg_debug(this->name, 0,
+                             "subvol %s is down. Unable to "
+                             " save mds subvol on inode for "
+                             " path %s gfid is %s ",
+                             conf->subvolumes[i]->name, local->loc.path,
+                             gfid_local);
+                goto out;
+            }
+        }
 
-                /* Calculate hashed subvol based on inode and parent node
-                */
-                hashed_subvol = dht_inode_get_hashed_subvol (local->inode, this,
-                                                             &local->loc);
-                if (!hashed_subvol) {
-                        gf_msg (this->name, GF_LOG_DEBUG, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "Failed to get hashed subvol for path %s"
-                                "gfid is %s ",
-                                local->loc.path, gfid_local);
-                        (*errst) = 1;
-                        ret = -1;
-                        goto out;
-                }
-                xattrs = dict_new ();
-                if (!xattrs) {
-                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_NO_MEMORY, "dict_new failed");
-                        ret = -1;
-                        goto out;
-                }
-                /* Add internal MDS xattr on disk for hashed subvol
-                */
-                ret = dht_dict_set_array (xattrs, conf->mds_xattr_key,
-                                          zero, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dictionary"
-                                "  value:key = %s for "
-                                "path %s", conf->mds_xattr_key,
-                                local->loc.path);
-                        ret = -1;
-                        goto out;
-                }
-                /* Create a new frame to wind a call only while
-                   this function call by revalidate_cbk code path
-                   To wind a call parallel need to create a new frame
-                */
-                if (mark_during_fresh_lookup) {
-                        xattr_frame = create_frame (this, this->ctx->pool);
-                        if (!xattr_frame) {
-                                ret = -1;
-                                goto out;
-                        }
-                        copy_local = dht_local_init (xattr_frame, &(local->loc),
-                                                     NULL, 0);
-                        if (!copy_local) {
-                                ret = -1;
-                                DHT_STACK_DESTROY (xattr_frame);
-                                goto out;
-                        }
-                        copy_local->stbuf = local->stbuf;
-                        copy_local->mds_heal_fresh_lookup = mark_during_fresh_lookup;
-                        if (!copy_local->inode)
-                                copy_local->inode = inode_ref (local->inode);
-                        gf_uuid_copy (copy_local->loc.gfid, local->gfid);
-                        FRAME_SU_DO (xattr_frame, dht_local_t);
-                        STACK_WIND_COOKIE (xattr_frame, dht_common_mark_mdsxattr_cbk,
-                                           hashed_subvol, hashed_subvol,
-                                           hashed_subvol->fops->setxattr,
-                                           &local->loc, xattrs, 0, NULL);
-                } else {
-                        STACK_WIND_COOKIE (frame,
-                                           dht_common_mark_mdsxattr_cbk,
-                                           (void *)hashed_subvol,
-                                           hashed_subvol,
-                                           hashed_subvol->fops->setxattr,
-                                           &local->loc, xattrs, 0,
-                                           NULL);
-                }
-        } else {
-                gf_msg_debug (this->name, 0,
-                              "internal xattr %s is present on subvol"
-                              "on path %s gfid is %s " , conf->mds_xattr_key,
-                               local->loc.path, gfid_local);
-                if (!mark_during_fresh_lookup)
-                        dht_selfheal_dir_setattr (frame, &local->loc,
-                                                  &local->stbuf, 0xffffffff,
-                                                  layout);
+        /* Calculate hashed subvol based on inode and parent node
+         */
+        hashed_subvol = dht_inode_get_hashed_subvol(local->inode, this,
+                                                    &local->loc);
+        if (!hashed_subvol) {
+            gf_msg(this->name, GF_LOG_DEBUG, 0,
+                   DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "Failed to get hashed subvol for path %s"
+                   "gfid is %s ",
+                   local->loc.path, gfid_local);
+            (*errst) = 1;
+            ret = -1;
+            goto out;
+        }
+        xattrs = dict_new();
+        if (!xattrs) {
+            gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                   "dict_new failed");
+            ret = -1;
+            goto out;
         }
+        /* Add internal MDS xattr on disk for hashed subvol
+         */
+        ret = dht_dict_set_array(xattrs, conf->mds_xattr_key, zero, 1);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_WARNING, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dictionary"
+                   "  value:key = %s for "
+                   "path %s",
+                   conf->mds_xattr_key, local->loc.path);
+            ret = -1;
+            goto out;
+        }
+        /* Create a new frame to wind a call only while
+           this function call by revalidate_cbk code path
+           To wind a call parallel need to create a new frame
+        */
+        if (mark_during_fresh_lookup) {
+            xattr_frame = create_frame(this, this->ctx->pool);
+            if (!xattr_frame) {
+                ret = -1;
+                goto out;
+            }
+            copy_local = dht_local_init(xattr_frame, &(local->loc), NULL, 0);
+            if (!copy_local) {
+                ret = -1;
+                DHT_STACK_DESTROY(xattr_frame);
+                goto out;
+            }
+            copy_local->stbuf = local->stbuf;
+            copy_local->mds_heal_fresh_lookup = mark_during_fresh_lookup;
+            if (!copy_local->inode)
+                copy_local->inode = inode_ref(local->inode);
+            gf_uuid_copy(copy_local->loc.gfid, local->gfid);
+            FRAME_SU_DO(xattr_frame, dht_local_t);
+            STACK_WIND_COOKIE(xattr_frame, dht_common_mark_mdsxattr_cbk,
+                              hashed_subvol, hashed_subvol,
+                              hashed_subvol->fops->setxattr, &local->loc,
+                              xattrs, 0, NULL);
+        } else {
+            STACK_WIND_COOKIE(frame, dht_common_mark_mdsxattr_cbk,
+                              (void *)hashed_subvol, hashed_subvol,
+                              hashed_subvol->fops->setxattr, &local->loc,
+                              xattrs, 0, NULL);
+        }
+    } else {
+        gf_msg_debug(this->name, 0,
+                     "internal xattr %s is present on subvol"
+                     "on path %s gfid is %s ",
+                     conf->mds_xattr_key, local->loc.path, gfid_local);
+        if (!mark_during_fresh_lookup)
+            dht_selfheal_dir_setattr(frame, &local->loc, &local->stbuf,
+                                     0xffffffff, layout);
+    }
 
 out:
-        if (xattrs)
-                dict_unref (xattrs);
-        return ret;
-}
-
-
-int
-dht_discover_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int op_ret, int op_errno,
-                  inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                  struct iatt *postparent)
-{
-        dht_local_t  *local                   = NULL;
-        int           this_call_cnt           = 0;
-        xlator_t     *prev                    = NULL;
-        dht_layout_t *layout                  = NULL;
-        int           ret                     = -1;
-        int           is_dir                  = 0;
-        int32_t       check_mds               = 0;
-        int           is_linkfile             = 0;
-        int           attempt_unwind          = 0;
-        dht_conf_t   *conf                    = 0;
-        char          gfid_local[GF_UUID_BUF_SIZE] = {0};
-        char          gfid_node[GF_UUID_BUF_SIZE]  = {0};
-        int32_t       mds_xattr_val[1]             = {0};
-        int           errst                        = 0;
-
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
+    if (xattrs)
+        dict_unref(xattrs);
+    return ret;
+}
+
+int
+dht_discover_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, inode_t *inode, struct iatt *stbuf,
+                 dict_t *xattr, struct iatt *postparent)
+{
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    dht_layout_t *layout = NULL;
+    int ret = -1;
+    int is_dir = 0;
+    int32_t check_mds = 0;
+    int is_linkfile = 0;
+    int attempt_unwind = 0;
+    dht_conf_t *conf = 0;
+    char gfid_local[GF_UUID_BUF_SIZE] = {0};
+    char gfid_node[GF_UUID_BUF_SIZE] = {0};
+    int32_t mds_xattr_val[1] = {0};
+    int errst = 0;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", this->private, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+
+    layout = local->layout;
+
+    /* Check if the gfid is different for file from other node */
+    if (!op_ret && gf_uuid_compare(local->gfid, stbuf->ia_gfid)) {
+        gf_uuid_unparse(stbuf->ia_gfid, gfid_node);
+        gf_uuid_unparse(local->gfid, gfid_local);
 
-        local = frame->local;
-        prev  = cookie;
-        conf = this->private;
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_GFID_MISMATCH,
+               "%s: gfid different on %s, gfid local = %s"
+               "gfid other = %s",
+               local->loc.path, prev->name, gfid_local, gfid_node);
+    }
 
-        layout = local->layout;
+    LOCK(&frame->lock);
+    {
+        /* TODO: assert equal mode on stbuf->st_mode and
+           local->stbuf->st_mode
 
+           else mkdir/chmod/chown and fix
+        */
 
-        /* Check if the gfid is different for file from other node */
-        if (!op_ret && gf_uuid_compare (local->gfid, stbuf->ia_gfid)) {
+        ret = dht_layout_merge(this, layout, prev, op_ret, op_errno, xattr);
+        if (ret)
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_MERGE_FAILED,
+                   "%s: failed to merge layouts for subvol %s", local->loc.path,
+                   prev->name);
 
-                gf_uuid_unparse(stbuf->ia_gfid, gfid_node);
-                gf_uuid_unparse(local->gfid, gfid_local);
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno,
+                         "lookup of %s on %s returned error", local->loc.path,
+                         prev->name);
 
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_GFID_MISMATCH,
-                        "%s: gfid different on %s, gfid local = %s"
-                        "gfid other = %s",
-                        local->loc.path, prev->name,
-                        gfid_local, gfid_node);
+            goto unlock;
         }
 
+        is_linkfile = check_is_linkfile(inode, stbuf, xattr,
+                                        conf->link_xattr_name);
+        is_dir = check_is_dir(inode, stbuf, xattr);
 
-        LOCK (&frame->lock);
-        {
-                /* TODO: assert equal mode on stbuf->st_mode and
-                   local->stbuf->st_mode
-
-                   else mkdir/chmod/chown and fix
-                */
-
-                ret = dht_layout_merge (this, layout, prev,
-                                        op_ret, op_errno, xattr);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_LAYOUT_MERGE_FAILED,
-                                "%s: failed to merge layouts for subvol %s",
-                                local->loc.path, prev->name);
-
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "lookup of %s on %s returned error",
-                                      local->loc.path, prev->name);
-
-                        goto unlock;
-                }
-
-                is_linkfile = check_is_linkfile (inode, stbuf, xattr,
-                                                 conf->link_xattr_name);
-                is_dir = check_is_dir (inode, stbuf, xattr);
-
-                if (is_dir) {
-                        local->dir_count ++;
-                } else {
-                        local->file_count ++;
-
-                        if (!is_linkfile && !local->cached_subvol) {
-                                /* real file */
-                                /* Ok, we somehow managed to find a file on
-                                 * more than one subvol. ignore this or we
-                                 * will end up overwriting information while a
-                                 * a thread is potentially unwinding from
-                                 * dht_discover_complete
-                                 */
-                                local->cached_subvol = prev;
-                                attempt_unwind = 1;
-                        } else {
-                                goto unlock;
-                        }
-                }
-
-                local->op_ret = 0;
-
-                if (local->xattr == NULL) {
-                        local->xattr = dict_ref (xattr);
-                } else {
-                        /* Don't aggregate for files. See BZ#1484113 */
-                        if (is_dir)
-                                dht_aggregate_xattr (local->xattr, xattr);
-                }
+        if (is_dir) {
+            local->dir_count++;
+        } else {
+            local->file_count++;
+
+            if (!is_linkfile && !local->cached_subvol) {
+                /* real file */
+                /* Ok, we somehow managed to find a file on
+                 * more than one subvol. ignore this or we
+                 * will end up overwriting information while a
+                 * a thread is potentially unwinding from
+                 * dht_discover_complete
+                 */
+                local->cached_subvol = prev;
+                attempt_unwind = 1;
+            } else {
+                goto unlock;
+            }
+        }
 
-                if (local->inode == NULL)
-                        local->inode = inode_ref (inode);
+        local->op_ret = 0;
 
-                dht_iatt_merge (this, &local->stbuf, stbuf);
-                dht_iatt_merge (this, &local->postparent, postparent);
+        if (local->xattr == NULL) {
+            local->xattr = dict_ref(xattr);
+        } else {
+            /* Don't aggregate for files. See BZ#1484113 */
+            if (is_dir)
+                dht_aggregate_xattr(local->xattr, xattr);
+        }
 
-                if (!dict_get (xattr, conf->mds_xattr_key)) {
-                        goto unlock;
-                } else {
-                        gf_msg_debug (this->name, 0,
-                                      "internal xattr %s is present on subvol"
-                                      "on path %s gfid is %s " ,
-                                      conf->mds_xattr_key,
-                                      local->loc.path, gfid_local);
-                }
-                check_mds = dht_dict_get_array (xattr, conf->mds_xattr_key,
-                                                mds_xattr_val, 1, &errst);
-                /* save mds subvol on inode ctx */
-                ret = dht_inode_ctx_mdsvol_set (local->inode, this,
-                                                prev);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_SET_INODE_CTX_FAILED,
-                                "Failed to set hashed subvol for %s vol is %s",
-                                local->loc.path, prev->name);
-                }
+        if (local->inode == NULL)
+            local->inode = inode_ref(inode);
 
-                if ((check_mds < 0) && !errst) {
-                        local->mds_xattr = dict_ref (xattr);
-                        gf_msg_debug (this->name, 0,
-                                      "Value of %s is not zero on mds subvol"
-                                      "so xattr needs to be healed on non mds"
-                                      " path is %s and vol name is %s "
-                                      " gfid is %s" ,
-                                      conf->mds_xattr_key,
-                                      local->loc.path,
-                                      prev->name, gfid_local);
-                        local->need_xattr_heal = 1;
-                        local->mds_subvol  = prev;
-                }
+        dht_iatt_merge(this, &local->stbuf, stbuf);
+        dht_iatt_merge(this, &local->postparent, postparent);
 
-        }
+        if (!dict_get(xattr, conf->mds_xattr_key)) {
+            goto unlock;
+        } else {
+            gf_msg_debug(this->name, 0,
+                         "internal xattr %s is present on subvol"
+                         "on path %s gfid is %s ",
+                         conf->mds_xattr_key, local->loc.path, gfid_local);
+        }
+        check_mds = dht_dict_get_array(xattr, conf->mds_xattr_key,
+                                       mds_xattr_val, 1, &errst);
+        /* save mds subvol on inode ctx */
+        ret = dht_inode_ctx_mdsvol_set(local->inode, this, prev);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SET_INODE_CTX_FAILED,
+                   "Failed to set hashed subvol for %s vol is %s",
+                   local->loc.path, prev->name);
+        }
+
+        if ((check_mds < 0) && !errst) {
+            local->mds_xattr = dict_ref(xattr);
+            gf_msg_debug(this->name, 0,
+                         "Value of %s is not zero on mds subvol"
+                         "so xattr needs to be healed on non mds"
+                         " path is %s and vol name is %s "
+                         " gfid is %s",
+                         conf->mds_xattr_key, local->loc.path, prev->name,
+                         gfid_local);
+            local->need_xattr_heal = 1;
+            local->mds_subvol = prev;
+        }
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 out:
-        /* Make sure, the thread executing dht_discover_complete is the one
-         * which calls STACK_DESTROY (frame). In the case of "attempt_unwind",
-         * this makes sure that the thread don't call dht_frame_return, till
-         * call to dht_discover_complete is done.
-         */
-        if (attempt_unwind) {
-                dht_discover_complete (this, frame);
-        }
+    /* Make sure, the thread executing dht_discover_complete is the one
+     * which calls STACK_DESTROY (frame). In the case of "attempt_unwind",
+     * this makes sure that the thread don't call dht_frame_return, till
+     * call to dht_discover_complete is done.
+     */
+    if (attempt_unwind) {
+        dht_discover_complete(this, frame);
+    }
 
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt) && !attempt_unwind) {
-                dht_discover_complete (this, frame);
-        }
+    if (is_last_call(this_call_cnt) && !attempt_unwind) {
+        dht_discover_complete(this, frame);
+    }
 
-        if (is_last_call (this_call_cnt))
-                DHT_STACK_DESTROY (frame);
+    if (is_last_call(this_call_cnt))
+        DHT_STACK_DESTROY(frame);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_do_discover (call_frame_t *frame, xlator_t *this, loc_t *loc)
+dht_do_discover(call_frame_t *frame, xlator_t *this, loc_t *loc)
 {
-        int          ret;
-        dht_local_t *local = NULL;
-        dht_conf_t  *conf = NULL;
-        int          call_cnt = 0;
-        int          op_errno = EINVAL;
-        int          i = 0;
-        call_frame_t *discover_frame = NULL;
+    int ret;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int call_cnt = 0;
+    int op_errno = EINVAL;
+    int i = 0;
+    call_frame_t *discover_frame = NULL;
 
-        conf = this->private;
-        local = frame->local;
+    conf = this->private;
+    local = frame->local;
 
-        ret = dht_set_file_xattr_req (this, loc, local->xattr_req);
-        if (ret) {
-                goto err;
-        }
+    ret = dht_set_file_xattr_req(this, loc, local->xattr_req);
+    if (ret) {
+        goto err;
+    }
 
-        ret = dht_set_dir_xattr_req (this, loc, local->xattr_req);
-        if (ret) {
-                goto err;
-        }
+    ret = dht_set_dir_xattr_req(this, loc, local->xattr_req);
+    if (ret) {
+        goto err;
+    }
 
-        if (loc_is_root (loc)) {
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->commithash_xattr_name,
-                                       sizeof(uint32_t));
-        }
+    if (loc_is_root(loc)) {
+        ret = dict_set_uint32(local->xattr_req, conf->commithash_xattr_name,
+                              sizeof(uint32_t));
+    }
 
-        call_cnt        = conf->subvolume_cnt;
-        local->call_cnt = call_cnt;
+    call_cnt = conf->subvolume_cnt;
+    local->call_cnt = call_cnt;
 
-        local->layout = dht_layout_new (this, conf->subvolume_cnt);
+    local->layout = dht_layout_new(this, conf->subvolume_cnt);
 
-        if (!local->layout) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    if (!local->layout) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        gf_uuid_copy (local->gfid, loc->gfid);
+    gf_uuid_copy(local->gfid, loc->gfid);
 
-        discover_frame = copy_frame (frame);
-        if (!discover_frame) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    discover_frame = copy_frame(frame);
+    if (!discover_frame) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        discover_frame->local = local;
-        frame->local = NULL;
-        local->main_frame = frame;
+    discover_frame->local = local;
+    frame->local = NULL;
+    local->main_frame = frame;
 
-        for (i = 0; i < call_cnt; i++) {
-                STACK_WIND_COOKIE (discover_frame, dht_discover_cbk,
-                                   conf->subvolumes[i], conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->lookup,
-                                   &local->loc, local->xattr_req);
-        }
+    for (i = 0; i < call_cnt; i++) {
+        STACK_WIND_COOKIE(discover_frame, dht_discover_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->lookup, &local->loc,
+                          local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL);
+    DHT_STACK_UNWIND(lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 /* Get the value of key from dict in the bytewise and save in array after
    convert from network byte order to host byte order
 */
 int32_t
-dht_dict_get_array (dict_t *dict, char *key, int32_t value[], int32_t size, int *errst)
-{
-        void    *ptr          = NULL;
-        int32_t len           = -1;
-        int32_t vindex        = -1;
-        int32_t err           = -1;
-        int     ret          = 0;
-
-        if (dict == NULL) {
-                (*errst) = -1;
-                return -EINVAL;
-        }
-        err = dict_get_ptr_and_len(dict, key, &ptr, &len);
-        if (err != 0) {
-                (*errst) = -1;
-                return err;
-        }
-
-        if (len != (size * sizeof (int32_t))) {
-                (*errst) = -1;
-                return -EINVAL;
-        }
-
-        for (vindex = 0; vindex < size; vindex++) {
-                value[vindex] = ntoh32(*((int32_t *)ptr + vindex));
-                if (value[vindex] < 0)
-                        ret = -1;
-        }
-
-        return ret;
+dht_dict_get_array(dict_t *dict, char *key, int32_t value[], int32_t size,
+                   int *errst)
+{
+    void *ptr = NULL;
+    int32_t len = -1;
+    int32_t vindex = -1;
+    int32_t err = -1;
+    int ret = 0;
+
+    if (dict == NULL) {
+        (*errst) = -1;
+        return -EINVAL;
+    }
+    err = dict_get_ptr_and_len(dict, key, &ptr, &len);
+    if (err != 0) {
+        (*errst) = -1;
+        return err;
+    }
+
+    if (len != (size * sizeof(int32_t))) {
+        (*errst) = -1;
+        return -EINVAL;
+    }
+
+    for (vindex = 0; vindex < size; vindex++) {
+        value[vindex] = ntoh32(*((int32_t *)ptr + vindex));
+        if (value[vindex] < 0)
+            ret = -1;
+    }
+
+    return ret;
 }
 
-
 /* Code to call syntask to heal custom xattr from hashed subvol
    to non hashed subvol
 */
 int
-dht_dir_xattr_heal (xlator_t *this, dht_local_t *local)
+dht_dir_xattr_heal(xlator_t *this, dht_local_t *local)
 {
-        dht_local_t  *copy_local                  = NULL;
-        call_frame_t *copy                        = NULL;
-        int          ret                          = -1;
-        char         gfid_local[GF_UUID_BUF_SIZE] = {0};
+    dht_local_t *copy_local = NULL;
+    call_frame_t *copy = NULL;
+    int ret = -1;
+    char gfid_local[GF_UUID_BUF_SIZE] = {0};
 
-        if (gf_uuid_is_null (local->gfid)) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                        "No gfid exists for path %s "
-                        "so healing xattr is not possible",
-                        local->loc.path);
-                goto out;
-        }
-
-        gf_uuid_unparse(local->gfid, gfid_local);
-        copy = create_frame (this, this->ctx->pool);
-        if (copy) {
-                copy_local = dht_local_init (copy, &(local->loc), NULL, 0);
-                if (!copy_local) {
-                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                "Memory allocation failed "
-                                "for path %s gfid %s ",
-                                local->loc.path, gfid_local);
-                        DHT_STACK_DESTROY (copy);
-                } else {
-                        copy_local->stbuf = local->stbuf;
-                        gf_uuid_copy (copy_local->loc.gfid, local->gfid);
-                        copy_local->mds_subvol = local->mds_subvol;
-                        FRAME_SU_DO (copy, dht_local_t);
-                        ret = synctask_new (this->ctx->env, dht_dir_heal_xattrs,
-                                            dht_dir_heal_xattrs_done,
-                                            copy, copy);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                        "Synctask creation failed to heal xattr "
-                                        "for path %s gfid %s ",
-                                        local->loc.path, gfid_local);
-                                DHT_STACK_DESTROY (copy);
-                        }
-                }
+    if (gf_uuid_is_null(local->gfid)) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DIR_XATTR_HEAL_FAILED,
+               "No gfid exists for path %s "
+               "so healing xattr is not possible",
+               local->loc.path);
+        goto out;
+    }
+
+    gf_uuid_unparse(local->gfid, gfid_local);
+    copy = create_frame(this, this->ctx->pool);
+    if (copy) {
+        copy_local = dht_local_init(copy, &(local->loc), NULL, 0);
+        if (!copy_local) {
+            gf_msg(this->name, GF_LOG_ERROR, ENOMEM,
+                   DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                   "Memory allocation failed "
+                   "for path %s gfid %s ",
+                   local->loc.path, gfid_local);
+            DHT_STACK_DESTROY(copy);
+        } else {
+            copy_local->stbuf = local->stbuf;
+            gf_uuid_copy(copy_local->loc.gfid, local->gfid);
+            copy_local->mds_subvol = local->mds_subvol;
+            FRAME_SU_DO(copy, dht_local_t);
+            ret = synctask_new(this->ctx->env, dht_dir_heal_xattrs,
+                               dht_dir_heal_xattrs_done, copy, copy);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, ENOMEM,
+                       DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                       "Synctask creation failed to heal xattr "
+                       "for path %s gfid %s ",
+                       local->loc.path, gfid_local);
+                DHT_STACK_DESTROY(copy);
+            }
         }
+    }
 out:
-        return ret;
-}
-
+    return ret;
+}
+
+int
+dht_lookup_dir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                   int op_ret, int op_errno, inode_t *inode, struct iatt *stbuf,
+                   dict_t *xattr, struct iatt *postparent)
+{
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    dht_layout_t *layout = NULL;
+    int ret = -1;
+    int is_dir = 0;
+    int32_t check_mds = 0;
+    int errst = 0;
+    char gfid_local[GF_UUID_BUF_SIZE] = {0};
+    char gfid_node[GF_UUID_BUF_SIZE] = {0};
+    int32_t mds_xattr_val[1] = {0};
+    call_frame_t *copy = NULL;
+    dht_local_t *copy_local = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", this->private, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+
+    layout = local->layout;
+
+    if (!op_ret && gf_uuid_is_null(local->gfid)) {
+        memcpy(local->gfid, stbuf->ia_gfid, 16);
+    }
+    if (!gf_uuid_is_null(local->gfid)) {
+        gf_uuid_unparse(local->gfid, gfid_local);
+    }
 
+    /* Check if the gfid is different for file from other node */
+    if (!op_ret && gf_uuid_compare(local->gfid, stbuf->ia_gfid)) {
+        gf_uuid_unparse(stbuf->ia_gfid, gfid_node);
 
-int
-dht_lookup_dir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                    int op_ret, int op_errno,
-                    inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                    struct iatt *postparent)
-{
-        dht_local_t  *local                   = NULL;
-        dht_conf_t   *conf                    = NULL;
-        int           this_call_cnt           = 0;
-        xlator_t     *prev                    = NULL;
-        dht_layout_t *layout                  = NULL;
-        int           ret                     = -1;
-        int           is_dir                  = 0;
-        int32_t       check_mds               = 0;
-        int           errst                   = 0;
-        char          gfid_local[GF_UUID_BUF_SIZE] = {0};
-        char          gfid_node[GF_UUID_BUF_SIZE]  = {0};
-        int32_t       mds_xattr_val[1]                 = {0};
-        call_frame_t *copy                         = NULL;
-        dht_local_t  *copy_local                   = NULL;
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_GFID_MISMATCH,
+               "%s: gfid different on %s."
+               " gfid local = %s, gfid subvol = %s",
+               local->loc.path, prev->name, gfid_local, gfid_node);
+    }
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
+    LOCK(&frame->lock);
+    {
+        /* TODO: assert equal mode on stbuf->st_mode and
+           local->stbuf->st_mode
 
-        local = frame->local;
-        prev  = cookie;
-        conf  = this->private;
+           else mkdir/chmod/chown and fix
+        */
+        ret = dht_layout_merge(this, layout, prev, op_ret, op_errno, xattr);
 
-        layout = local->layout;
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno,
+                         "lookup of %s on %s returned error", local->loc.path,
+                         prev->name);
 
-        if (!op_ret && gf_uuid_is_null (local->gfid)) {
-                memcpy (local->gfid, stbuf->ia_gfid, 16);
+            goto unlock;
         }
-        if (!gf_uuid_is_null(local->gfid)) {
-                gf_uuid_unparse(local->gfid, gfid_local);
-        }
-
-        /* Check if the gfid is different for file from other node */
-        if (!op_ret && gf_uuid_compare (local->gfid, stbuf->ia_gfid)) {
 
-                gf_uuid_unparse(stbuf->ia_gfid, gfid_node);
+        is_dir = check_is_dir(inode, stbuf, xattr);
+        if (!is_dir) {
+            gf_msg_debug(this->name, 0,
+                         "lookup of %s on %s returned non"
+                         "dir 0%o"
+                         "calling lookup_everywhere",
+                         local->loc.path, prev->name, stbuf->ia_type);
 
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_GFID_MISMATCH,
-                        "%s: gfid different on %s."
-                        " gfid local = %s, gfid subvol = %s",
-                        local->loc.path, prev->name,
-                        gfid_local, gfid_node);
+            local->need_selfheal = 1;
+            goto unlock;
         }
 
-        LOCK (&frame->lock);
-        {
-                /* TODO: assert equal mode on stbuf->st_mode and
-                   local->stbuf->st_mode
-
-                   else mkdir/chmod/chown and fix
-                */
-                ret = dht_layout_merge (this, layout, prev, op_ret, op_errno,
-                                        xattr);
-
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "lookup of %s on %s returned error",
-                                      local->loc.path, prev->name);
-
-                        goto unlock;
-                }
-
-                is_dir = check_is_dir (inode, stbuf, xattr);
-                if (!is_dir) {
-
-                        gf_msg_debug (this->name, 0,
-                                      "lookup of %s on %s returned non"
-                                      "dir 0%o"
-                                      "calling lookup_everywhere",
-                                      local->loc.path, prev->name,
-                                      stbuf->ia_type);
-
-                        local->need_selfheal = 1;
-                        goto unlock;
-                }
-
-                local->op_ret = 0;
-                if (local->xattr == NULL) {
-                        local->xattr = dict_ref (xattr);
-                } else {
-                        dht_aggregate_xattr (local->xattr, xattr);
-                }
-
-                if (dict_get (xattr, conf->mds_xattr_key)) {
-                        local->mds_subvol  = prev;
-                        local->mds_stbuf.ia_gid = stbuf->ia_gid;
-                        local->mds_stbuf.ia_uid = stbuf->ia_uid;
-                        local->mds_stbuf.ia_prot = stbuf->ia_prot;
-                }
+        local->op_ret = 0;
+        if (local->xattr == NULL) {
+            local->xattr = dict_ref(xattr);
+        } else {
+            dht_aggregate_xattr(local->xattr, xattr);
+        }
 
-                if (local->stbuf.ia_type != IA_INVAL) {
-                        if (!__is_root_gfid (stbuf->ia_gfid) &&
-                            ((local->stbuf.ia_gid != stbuf->ia_gid) ||
-                            (local->stbuf.ia_uid != stbuf->ia_uid) ||
-                            (is_permission_different (&local->stbuf.ia_prot,
-                                                      &stbuf->ia_prot)))) {
-                                local->need_attrheal = 1;
-                        }
-                }
+        if (dict_get(xattr, conf->mds_xattr_key)) {
+            local->mds_subvol = prev;
+            local->mds_stbuf.ia_gid = stbuf->ia_gid;
+            local->mds_stbuf.ia_uid = stbuf->ia_uid;
+            local->mds_stbuf.ia_prot = stbuf->ia_prot;
+        }
 
-                if (local->inode == NULL)
-                        local->inode = inode_ref (inode);
+        if (local->stbuf.ia_type != IA_INVAL) {
+            if (!__is_root_gfid(stbuf->ia_gfid) &&
+                ((local->stbuf.ia_gid != stbuf->ia_gid) ||
+                 (local->stbuf.ia_uid != stbuf->ia_uid) ||
+                 (is_permission_different(&local->stbuf.ia_prot,
+                                          &stbuf->ia_prot)))) {
+                local->need_attrheal = 1;
+            }
+        }
 
-                dht_iatt_merge (this, &local->stbuf, stbuf);
-                dht_iatt_merge (this, &local->postparent, postparent);
+        if (local->inode == NULL)
+            local->inode = inode_ref(inode);
 
-                if (!dict_get (xattr, conf->mds_xattr_key)) {
-                        gf_msg_debug (this->name, 0,
-                                      "Internal xattr %s is not present "
-                                      " on path %s gfid is %s " ,
-                                      conf->mds_xattr_key,
-                                      local->loc.path, gfid_local);
-                        goto unlock;
-                } else {
-                        /* Save mds subvol on inode ctx */
-                        ret = dht_inode_ctx_mdsvol_set (local->inode, this,
-                                                        prev);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_SET_INODE_CTX_FAILED,
-                                        "Failed to set hashed subvol for %s vol is %s",
-                                        local->loc.path, prev->name);
-                         }
-                }
-                check_mds = dht_dict_get_array (xattr, conf->mds_xattr_key,
-                                                mds_xattr_val, 1, &errst);
-                if ((check_mds < 0) && !errst) {
-                        local->mds_xattr = dict_ref (xattr);
-                        gf_msg_debug (this->name, 0,
-                                      "Value of %s is not zero on hashed subvol "
-                                      "so xattr needs to be heal on non hashed"
-                                      " path is %s and vol name is %s "
-                                      " gfid is %s" ,
-                                      conf->mds_xattr_key,
-                                      local->loc.path,
-                                      prev->name, gfid_local);
-                        local->need_xattr_heal = 1;
-                        local->mds_subvol  = prev;
-                }
+        dht_iatt_merge(this, &local->stbuf, stbuf);
+        dht_iatt_merge(this, &local->postparent, postparent);
 
+        if (!dict_get(xattr, conf->mds_xattr_key)) {
+            gf_msg_debug(this->name, 0,
+                         "Internal xattr %s is not present "
+                         " on path %s gfid is %s ",
+                         conf->mds_xattr_key, local->loc.path, gfid_local);
+            goto unlock;
+        } else {
+            /* Save mds subvol on inode ctx */
+            ret = dht_inode_ctx_mdsvol_set(local->inode, this, prev);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, 0,
+                       DHT_MSG_SET_INODE_CTX_FAILED,
+                       "Failed to set hashed subvol for %s vol is %s",
+                       local->loc.path, prev->name);
+            }
         }
+        check_mds = dht_dict_get_array(xattr, conf->mds_xattr_key,
+                                       mds_xattr_val, 1, &errst);
+        if ((check_mds < 0) && !errst) {
+            local->mds_xattr = dict_ref(xattr);
+            gf_msg_debug(this->name, 0,
+                         "Value of %s is not zero on hashed subvol "
+                         "so xattr needs to be heal on non hashed"
+                         " path is %s and vol name is %s "
+                         " gfid is %s",
+                         conf->mds_xattr_key, local->loc.path, prev->name,
+                         gfid_local);
+            local->need_xattr_heal = 1;
+            local->mds_subvol = prev;
+        }
+    }
 unlock:
-        UNLOCK (&frame->lock);
-
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt)) {
-                /* No need to call xattr heal code if volume count is 1
-                */
-                if (conf->subvolume_cnt == 1)
-                        local->need_xattr_heal = 0;
+    if (is_last_call(this_call_cnt)) {
+        /* No need to call xattr heal code if volume count is 1
+         */
+        if (conf->subvolume_cnt == 1)
+            local->need_xattr_heal = 0;
 
-                /* Code to update all extended attributed from hashed subvol
-                   to local->xattr
-                */
-                if (local->need_xattr_heal && (local->mds_xattr)) {
-                        dht_dir_set_heal_xattr (this, local, local->xattr,
-                                                local->mds_xattr, NULL, NULL);
-                        dict_unref (local->mds_xattr);
-                        local->mds_xattr = NULL;
-                }
+        /* Code to update all extended attributed from hashed subvol
+           to local->xattr
+        */
+        if (local->need_xattr_heal && (local->mds_xattr)) {
+            dht_dir_set_heal_xattr(this, local, local->xattr, local->mds_xattr,
+                                   NULL, NULL);
+            dict_unref(local->mds_xattr);
+            local->mds_xattr = NULL;
+        }
 
-                if (local->need_selfheal) {
-                        local->need_selfheal = 0;
-                        dht_lookup_everywhere (frame, this, &local->loc);
-                        return 0;
-                }
+        if (local->need_selfheal) {
+            local->need_selfheal = 0;
+            dht_lookup_everywhere(frame, this, &local->loc);
+            return 0;
+        }
 
-                if (local->op_ret == 0) {
-                        ret = dht_layout_normalize (this, &local->loc, layout);
+        if (local->op_ret == 0) {
+            ret = dht_layout_normalize(this, &local->loc, layout);
 
-                        if (ret != 0) {
-                                gf_msg_debug (this->name, 0,
-                                              "fixing assignment on %s",
-                                              local->loc.path);
-                                goto selfheal;
-                        }
+            if (ret != 0) {
+                gf_msg_debug(this->name, 0, "fixing assignment on %s",
+                             local->loc.path);
+                goto selfheal;
+            }
 
-                        dht_layout_set (this, local->inode, layout);
-                        if (!dict_get (local->xattr, conf->mds_xattr_key) ||
-                            local->need_xattr_heal)
-                                goto selfheal;
-                }
+            dht_layout_set(this, local->inode, layout);
+            if (!dict_get(local->xattr, conf->mds_xattr_key) ||
+                local->need_xattr_heal)
+                goto selfheal;
+        }
 
-                if (local->inode) {
-                        dht_inode_ctx_time_update (local->inode, this,
-                                                   &local->stbuf, 1);
-                }
+        if (local->inode) {
+            dht_inode_ctx_time_update(local->inode, this, &local->stbuf, 1);
+        }
 
-                if (local->loc.parent) {
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->postparent, 1);
-                }
+        if (local->loc.parent) {
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->postparent, 1);
+        }
 
-                if (local->need_attrheal) {
-                        local->need_attrheal = 0;
-                        if (!__is_root_gfid (inode->gfid)) {
-                                local->stbuf.ia_gid = local->mds_stbuf.ia_gid;
-                                local->stbuf.ia_uid = local->mds_stbuf.ia_uid;
-                                local->stbuf.ia_prot = local->mds_stbuf.ia_prot;
-                        }
-                        copy = create_frame (this, this->ctx->pool);
-                        if (copy) {
-                                copy_local = dht_local_init (copy, &local->loc,
-                                                             NULL, 0);
-                                if (!copy_local) {
-                                        DHT_STACK_DESTROY (copy);
-                                        goto skip_attr_heal;
-                                }
-                                copy_local->stbuf = local->stbuf;
-                                gf_uuid_copy (copy_local->loc.gfid,
-                                              local->stbuf.ia_gfid);
-                                copy_local->mds_stbuf = local->mds_stbuf;
-                                copy_local->mds_subvol = local->mds_subvol;
-                                copy->local = copy_local;
-                                FRAME_SU_DO (copy, dht_local_t);
-                                ret = synctask_new (this->ctx->env,
-                                                    dht_dir_attr_heal,
-                                                    dht_dir_attr_heal_done,
-                                                    copy, copy);
-                                if (ret) {
-                                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                                DHT_MSG_DIR_ATTR_HEAL_FAILED,
-                                                "Synctask creation failed to heal attr "
-                                                "for path %s gfid %s ",
-                                                local->loc.path, local->gfid);
-                                        DHT_STACK_DESTROY (copy);
-                                }
-                        }
+        if (local->need_attrheal) {
+            local->need_attrheal = 0;
+            if (!__is_root_gfid(inode->gfid)) {
+                local->stbuf.ia_gid = local->mds_stbuf.ia_gid;
+                local->stbuf.ia_uid = local->mds_stbuf.ia_uid;
+                local->stbuf.ia_prot = local->mds_stbuf.ia_prot;
+            }
+            copy = create_frame(this, this->ctx->pool);
+            if (copy) {
+                copy_local = dht_local_init(copy, &local->loc, NULL, 0);
+                if (!copy_local) {
+                    DHT_STACK_DESTROY(copy);
+                    goto skip_attr_heal;
+                }
+                copy_local->stbuf = local->stbuf;
+                gf_uuid_copy(copy_local->loc.gfid, local->stbuf.ia_gfid);
+                copy_local->mds_stbuf = local->mds_stbuf;
+                copy_local->mds_subvol = local->mds_subvol;
+                copy->local = copy_local;
+                FRAME_SU_DO(copy, dht_local_t);
+                ret = synctask_new(this->ctx->env, dht_dir_attr_heal,
+                                   dht_dir_attr_heal_done, copy, copy);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, ENOMEM,
+                           DHT_MSG_DIR_ATTR_HEAL_FAILED,
+                           "Synctask creation failed to heal attr "
+                           "for path %s gfid %s ",
+                           local->loc.path, local->gfid);
+                    DHT_STACK_DESTROY(copy);
                 }
-
-skip_attr_heal:
-                DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-                dht_set_fixed_dir_stat (&local->postparent);
-                /* Delete mds xattr at the time of STACK UNWIND */
-                if (local->xattr)
-                        GF_REMOVE_INTERNAL_XATTR (conf->mds_xattr_key, local->xattr);
-                DHT_STACK_UNWIND (lookup, frame, local->op_ret, local->op_errno,
-                                  local->inode, &local->stbuf, local->xattr,
-                                  &local->postparent);
+            }
         }
 
-        return 0;
+    skip_attr_heal:
+        DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+        dht_set_fixed_dir_stat(&local->postparent);
+        /* Delete mds xattr at the time of STACK UNWIND */
+        if (local->xattr)
+            GF_REMOVE_INTERNAL_XATTR(conf->mds_xattr_key, local->xattr);
+        DHT_STACK_UNWIND(lookup, frame, local->op_ret, local->op_errno,
+                         local->inode, &local->stbuf, local->xattr,
+                         &local->postparent);
+    }
+
+    return 0;
 
 selfheal:
-        FRAME_SU_DO (frame, dht_local_t);
-        ret = dht_selfheal_directory (frame, dht_lookup_selfheal_cbk,
-                                      &local->loc, layout);
+    FRAME_SU_DO(frame, dht_local_t);
+    ret = dht_selfheal_directory(frame, dht_lookup_selfheal_cbk, &local->loc,
+                                 layout);
 out:
-        return ret;
-}
+    return ret;
+}
+
+int
+is_permission_different(ia_prot_t *prot1, ia_prot_t *prot2)
+{
+    if ((prot1->owner.read != prot2->owner.read) ||
+        (prot1->owner.write != prot2->owner.write) ||
+        (prot1->owner.exec != prot2->owner.exec) ||
+        (prot1->group.read != prot2->group.read) ||
+        (prot1->group.write != prot2->group.write) ||
+        (prot1->group.exec != prot2->group.exec) ||
+        (prot1->other.read != prot2->other.read) ||
+        (prot1->other.write != prot2->other.write) ||
+        (prot1->other.exec != prot2->other.exec) ||
+        (prot1->suid != prot2->suid) || (prot1->sgid != prot2->sgid) ||
+        (prot1->sticky != prot2->sticky)) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+int
+dht_revalidate_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                   int op_ret, int op_errno, inode_t *inode, struct iatt *stbuf,
+                   dict_t *xattr, struct iatt *postparent)
+{
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    dht_layout_t *layout = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    int is_dir = 0;
+    int is_linkfile = 0;
+    int follow_link = 0;
+    call_frame_t *copy = NULL;
+    dht_local_t *copy_local = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    uint32_t vol_commit_hash = 0;
+    xlator_t *subvol = NULL;
+    int32_t check_mds = 0;
+    int errst = 0;
+    int32_t mds_xattr_val[1] = {0};
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, err);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, err);
+    GF_VALIDATE_OR_GOTO("dht", cookie, err);
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-int
-is_permission_different (ia_prot_t *prot1, ia_prot_t *prot2)
-{
-        if ((prot1->owner.read != prot2->owner.read) ||
-            (prot1->owner.write != prot2->owner.write) ||
-            (prot1->owner.exec != prot2->owner.exec) ||
-            (prot1->group.read != prot2->group.read) ||
-            (prot1->group.write != prot2->group.write) ||
-            (prot1->group.exec != prot2->group.exec) ||
-            (prot1->other.read != prot2->other.read) ||
-            (prot1->other.write != prot2->other.write) ||
-            (prot1->other.exec != prot2->other.exec) ||
-            (prot1->suid != prot2->suid) ||
-            (prot1->sgid != prot2->sgid) ||
-            (prot1->sticky != prot2->sticky)) {
-                return 1;
-        } else {
-                return 0;
+    if (!conf->vch_forced) {
+        ret = dict_get_uint32(xattr, conf->commithash_xattr_name,
+                              &vol_commit_hash);
+        if (ret == 0) {
+            conf->vol_commit_hash = vol_commit_hash;
         }
-}
-
-int
-dht_revalidate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                    int op_ret, int op_errno,
-                    inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                    struct iatt *postparent)
-{
-        dht_local_t  *local         = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev          = NULL;
-        dht_layout_t *layout        = NULL;
-        dht_conf_t   *conf          = NULL;
-        int           ret  = -1;
-        int           is_dir = 0;
-        int           is_linkfile = 0;
-        int           follow_link = 0;
-        call_frame_t *copy          = NULL;
-        dht_local_t  *copy_local    = NULL;
-        char gfid[GF_UUID_BUF_SIZE] = {0};
-        uint32_t      vol_commit_hash = 0;
-        xlator_t      *subvol = NULL;
-        int32_t       check_mds       = 0;
-        int           errst           = 0;
-        int32_t       mds_xattr_val[1] = {0};
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, err);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, err);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, err);
+    }
 
-        local = frame->local;
-        prev  = cookie;
-        conf = this->private;
-        if (!conf)
-                goto out;
+    gf_uuid_unparse(local->loc.gfid, gfid);
 
-        if (!conf->vch_forced) {
-                ret = dict_get_uint32 (xattr, conf->commithash_xattr_name,
-                                       &vol_commit_hash);
-                if (ret == 0) {
-                        conf->vol_commit_hash = vol_commit_hash;
-                }
+    LOCK(&frame->lock);
+    {
+        if (gf_uuid_is_null(local->gfid)) {
+            memcpy(local->gfid, local->loc.gfid, 16);
         }
 
-        gf_uuid_unparse (local->loc.gfid, gfid);
+        gf_msg_debug(this->name, op_errno,
+                     "revalidate lookup of %s "
+                     "returned with op_ret %d",
+                     local->loc.path, op_ret);
 
-        LOCK (&frame->lock);
-        {
-                if (gf_uuid_is_null (local->gfid)) {
-                        memcpy (local->gfid, local->loc.gfid, 16);
-                }
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+
+            if ((op_errno != ENOTCONN) && (op_errno != ENOENT) &&
+                (op_errno != ESTALE)) {
+                gf_msg(this->name, GF_LOG_INFO, op_errno,
+                       DHT_MSG_REVALIDATE_CBK_INFO,
+                       "Revalidate: subvolume %s for %s "
+                       "(gfid = %s) returned -1",
+                       prev->name, local->loc.path, gfid);
+            }
+            if (op_errno == ESTALE) {
+                /* propagate the ESTALE to parent.
+                 * setting local->return_estale would send
+                 * ESTALE to parent. */
+                local->return_estale = 1;
+            }
+
+            /* if it is ENOENT, we may have to do a
+             * 'lookup_everywhere()' to make sure
+             * the file is not migrated */
+            if (op_errno == ENOENT) {
+                if (IA_ISREG(local->loc.inode->ia_type)) {
+                    gf_msg_debug(this->name, 0,
+                                 "found ENOENT for %s. "
+                                 "Setting "
+                                 "need_lookup_everywhere"
+                                 " flag to 1",
+                                 local->loc.path);
 
-                gf_msg_debug (this->name, op_errno,
-                              "revalidate lookup of %s "
-                              "returned with op_ret %d",
-                              local->loc.path, op_ret);
-
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-
-                        if ((op_errno != ENOTCONN)
-                            && (op_errno != ENOENT)
-                            && (op_errno != ESTALE)) {
-                                gf_msg (this->name, GF_LOG_INFO, op_errno,
-                                        DHT_MSG_REVALIDATE_CBK_INFO,
-                                        "Revalidate: subvolume %s for %s "
-                                        "(gfid = %s) returned -1",
-                                        prev->name, local->loc.path,
-                                        gfid);
-                        }
-                        if (op_errno == ESTALE) {
-                                /* propagate the ESTALE to parent.
-                                 * setting local->return_estale would send
-                                 * ESTALE to parent. */
-                                local->return_estale = 1;
-                        }
-
-                        /* if it is ENOENT, we may have to do a
-                         * 'lookup_everywhere()' to make sure
-                         * the file is not migrated */
-                        if (op_errno == ENOENT) {
-                                if (IA_ISREG (local->loc.inode->ia_type)) {
-
-                                        gf_msg_debug (this->name, 0,
-                                                      "found ENOENT for %s. "
-                                                      "Setting "
-                                                      "need_lookup_everywhere"
-                                                      " flag to 1",
-                                                      local->loc.path);
-
-                                        local->need_lookup_everywhere = 1;
-                                }
-                        }
-                        goto unlock;
+                    local->need_lookup_everywhere = 1;
                 }
+            }
+            goto unlock;
+        }
+
+        if ((!IA_ISINVAL(local->inode->ia_type)) &&
+            stbuf->ia_type != local->inode->ia_type) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_FILE_TYPE_MISMATCH,
+                   "mismatching filetypes 0%o v/s 0%o for %s,"
+                   " gfid = %s",
+                   (stbuf->ia_type), (local->inode->ia_type), local->loc.path,
+                   gfid);
 
-                if ((!IA_ISINVAL(local->inode->ia_type)) &&
-                    stbuf->ia_type != local->inode->ia_type) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_FILE_TYPE_MISMATCH,
-                                "mismatching filetypes 0%o v/s 0%o for %s,"
-                                " gfid = %s",
-                                (stbuf->ia_type), (local->inode->ia_type),
-                                local->loc.path, gfid);
+            local->op_ret = -1;
+            local->op_errno = EINVAL;
 
-                        local->op_ret = -1;
-                        local->op_errno = EINVAL;
+            goto unlock;
+        }
+
+        layout = local->layout;
 
-                        goto unlock;
+        is_dir = check_is_dir(inode, stbuf, xattr);
+        is_linkfile = check_is_linkfile(inode, stbuf, xattr,
+                                        conf->link_xattr_name);
+        if (is_linkfile) {
+            follow_link = 1;
+            goto unlock;
+        }
+        if (is_dir) {
+            ret = dht_dir_has_layout(xattr, conf->xattr_name);
+            if (ret >= 0) {
+                if (is_greater_time(local->stbuf.ia_ctime,
+                                    local->stbuf.ia_ctime_nsec, stbuf->ia_ctime,
+                                    stbuf->ia_ctime_nsec)) {
+                    /* Choose source */
+                    local->prebuf.ia_gid = stbuf->ia_gid;
+                    local->prebuf.ia_uid = stbuf->ia_uid;
+
+                    if (__is_root_gfid(stbuf->ia_gfid))
+                        local->prebuf.ia_prot = stbuf->ia_prot;
+                }
+            }
 
+            if (local->stbuf.ia_type != IA_INVAL) {
+                if ((local->stbuf.ia_gid != stbuf->ia_gid) ||
+                    (local->stbuf.ia_uid != stbuf->ia_uid) ||
+                    is_permission_different(&local->stbuf.ia_prot,
+                                            &stbuf->ia_prot)) {
+                    local->need_selfheal = 1;
                 }
+            }
 
-                layout = local->layout;
+            if (!dict_get(xattr, conf->mds_xattr_key)) {
+                gf_msg_debug(this->name, 0,
+                             "internal xattr %s is not present"
+                             " on path %s gfid is %s ",
+                             conf->mds_xattr_key, local->loc.path, gfid);
+            } else {
+                check_mds = dht_dict_get_array(xattr, conf->mds_xattr_key,
+                                               mds_xattr_val, 1, &errst);
+                local->mds_subvol = prev;
+                local->mds_stbuf.ia_gid = stbuf->ia_gid;
+                local->mds_stbuf.ia_uid = stbuf->ia_uid;
+                local->mds_stbuf.ia_prot = stbuf->ia_prot;
 
-                is_dir = check_is_dir (inode, stbuf, xattr);
-                is_linkfile = check_is_linkfile (inode, stbuf, xattr,
-                                                 conf->link_xattr_name);
-                if (is_linkfile) {
-                        follow_link = 1;
-                        goto unlock;
+                /* save mds subvol on inode ctx */
+                ret = dht_inode_ctx_mdsvol_set(local->inode, this, prev);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, 0,
+                           DHT_MSG_SET_INODE_CTX_FAILED,
+                           "Failed to set MDS subvol for %s vol is %s",
+                           local->loc.path, prev->name);
                 }
-                if (is_dir) {
-                        ret = dht_dir_has_layout (xattr, conf->xattr_name);
-                        if (ret >= 0) {
-                                if (is_greater_time(local->stbuf.ia_ctime,
-                                                    local->stbuf.ia_ctime_nsec,
-                                                    stbuf->ia_ctime,
-                                                    stbuf->ia_ctime_nsec)) {
-                                        /* Choose source */
-                                        local->prebuf.ia_gid = stbuf->ia_gid;
-                                        local->prebuf.ia_uid = stbuf->ia_uid;
-
-                                        if (__is_root_gfid (stbuf->ia_gfid))
-                                                local->prebuf.ia_prot = stbuf->ia_prot;
-                                }
-                        }
-
-                        if (local->stbuf.ia_type != IA_INVAL)
-                        {
-                                if ((local->stbuf.ia_gid != stbuf->ia_gid) ||
-                                    (local->stbuf.ia_uid != stbuf->ia_uid) ||
-                                     is_permission_different (&local->stbuf.ia_prot,
-                                                              &stbuf->ia_prot)) {
-                                        local->need_selfheal = 1;
-                                }
-                        }
-
-                        if (!dict_get (xattr, conf->mds_xattr_key)) {
-                                gf_msg_debug (this->name, 0,
-                                              "internal xattr %s is not present"
-                                              " on path %s gfid is %s " ,
-                                              conf->mds_xattr_key,
-                                              local->loc.path, gfid);
-                        } else {
-                                check_mds = dht_dict_get_array (xattr, conf->mds_xattr_key,
-                                                                mds_xattr_val, 1, &errst);
-                                local->mds_subvol  = prev;
-                                local->mds_stbuf.ia_gid = stbuf->ia_gid;
-                                local->mds_stbuf.ia_uid = stbuf->ia_uid;
-                                local->mds_stbuf.ia_prot = stbuf->ia_prot;
-
-                                /* save mds subvol on inode ctx */
-                                ret = dht_inode_ctx_mdsvol_set (local->inode, this,
-                                                                prev);
-                                if (ret) {
-                                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                                DHT_MSG_SET_INODE_CTX_FAILED,
-                                                "Failed to set MDS subvol for %s vol is %s",
-                                                local->loc.path, prev->name);
-                                }
-                                if ((check_mds < 0) && !errst) {
-                                        local->mds_xattr = dict_ref (xattr);
-                                        gf_msg_debug (this->name, 0,
-                                                      "Value of %s is not zero on "
-                                                      "hashed subvol so xattr needs to"
-                                                      " be healed on non hashed"
-                                                      " path is %s and vol name is %s "
-                                                      " gfid is %s" ,
-                                                      conf->mds_xattr_key,
-                                                      local->loc.path,
-                                                      prev->name, gfid);
-                                        local->need_xattr_heal = 1;
-                                }
-                        }
-                        ret = dht_layout_dir_mismatch (this, layout,
-                                                       prev, &local->loc,
-                                                       xattr);
-                        if (ret != 0) {
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_LAYOUT_MISMATCH,
-                                        "Mismatching layouts for %s, gfid = %s",
-                                        local->loc.path, gfid);
-
-                                local->layout_mismatch = 1;
-
-                                goto unlock;
-                        }
+                if ((check_mds < 0) && !errst) {
+                    local->mds_xattr = dict_ref(xattr);
+                    gf_msg_debug(this->name, 0,
+                                 "Value of %s is not zero on "
+                                 "hashed subvol so xattr needs to"
+                                 " be healed on non hashed"
+                                 " path is %s and vol name is %s "
+                                 " gfid is %s",
+                                 conf->mds_xattr_key, local->loc.path,
+                                 prev->name, gfid);
+                    local->need_xattr_heal = 1;
                 }
+            }
+            ret = dht_layout_dir_mismatch(this, layout, prev, &local->loc,
+                                          xattr);
+            if (ret != 0) {
+                gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LAYOUT_MISMATCH,
+                       "Mismatching layouts for %s, gfid = %s", local->loc.path,
+                       gfid);
 
+                local->layout_mismatch = 1;
 
-                /* Update stbuf from the servers where layout is present. This
-                 * is an indication that the server is not a newly added brick.
-                 * Merging stbuf from newly added brick may result in the added
-                 * brick being the source of heal for uid/gid */
-                if (!is_dir || (is_dir &&
-                    dht_dir_has_layout (xattr, conf->xattr_name) >= 0)
-                    || conf->subvolume_cnt == 1) {
+                goto unlock;
+            }
+        }
 
-                        dht_iatt_merge (this, &local->stbuf, stbuf);
-                        dht_iatt_merge (this, &local->postparent, postparent);
-                } else {
-                        /* copy the gfid anyway */
-                        gf_uuid_copy (local->stbuf.ia_gfid, stbuf->ia_gfid);
-                }
+        /* Update stbuf from the servers where layout is present. This
+         * is an indication that the server is not a newly added brick.
+         * Merging stbuf from newly added brick may result in the added
+         * brick being the source of heal for uid/gid */
+        if (!is_dir ||
+            (is_dir && dht_dir_has_layout(xattr, conf->xattr_name) >= 0) ||
+            conf->subvolume_cnt == 1) {
+            dht_iatt_merge(this, &local->stbuf, stbuf);
+            dht_iatt_merge(this, &local->postparent, postparent);
+        } else {
+            /* copy the gfid anyway */
+            gf_uuid_copy(local->stbuf.ia_gfid, stbuf->ia_gfid);
+        }
 
-                local->op_ret = 0;
+        local->op_ret = 0;
 
-                if (!local->xattr) {
-                        local->xattr = dict_ref (xattr);
-                } else if (is_dir) {
-                        dht_aggregate_xattr (local->xattr, xattr);
-                }
+        if (!local->xattr) {
+            local->xattr = dict_ref(xattr);
+        } else if (is_dir) {
+            dht_aggregate_xattr(local->xattr, xattr);
         }
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        if (follow_link) {
-                gf_uuid_copy (local->gfid, stbuf->ia_gfid);
+    if (follow_link) {
+        gf_uuid_copy(local->gfid, stbuf->ia_gfid);
 
-                subvol = dht_linkfile_subvol (this, inode, stbuf, xattr);
-                if (!subvol) {
-                        op_errno = ESTALE;
-                        local->op_ret = -1;
-                } else {
-
-                        STACK_WIND_COOKIE (frame, dht_lookup_linkfile_cbk,
-                                           subvol, subvol, subvol->fops->lookup,
-                                           &local->loc, local->xattr_req);
-                        return 0;
-                }
+        subvol = dht_linkfile_subvol(this, inode, stbuf, xattr);
+        if (!subvol) {
+            op_errno = ESTALE;
+            local->op_ret = -1;
+        } else {
+            STACK_WIND_COOKIE(frame, dht_lookup_linkfile_cbk, subvol, subvol,
+                              subvol->fops->lookup, &local->loc,
+                              local->xattr_req);
+            return 0;
         }
+    }
 
 out:
-        this_call_cnt = dht_frame_return (frame);
-
-        if (is_last_call (this_call_cnt)) {
-                if (!IA_ISDIR (local->stbuf.ia_type)
-                    && (local->hashed_subvol != local->cached_subvol)
-                    && (local->stbuf.ia_nlink == 1)
-                    && (conf && conf->unhashed_sticky_bit)) {
-                        local->stbuf.ia_prot.sticky = 1;
-                }
-                /* No need to call heal code if volume count is 1
+    this_call_cnt = dht_frame_return(frame);
+
+    if (is_last_call(this_call_cnt)) {
+        if (!IA_ISDIR(local->stbuf.ia_type) &&
+            (local->hashed_subvol != local->cached_subvol) &&
+            (local->stbuf.ia_nlink == 1) &&
+            (conf && conf->unhashed_sticky_bit)) {
+            local->stbuf.ia_prot.sticky = 1;
+        }
+        /* No need to call heal code if volume count is 1
+         */
+        if (conf->subvolume_cnt == 1)
+            local->need_xattr_heal = 0;
+
+        if (IA_ISDIR(local->stbuf.ia_type)) {
+            /* Code to update all extended attributed from hashed
+               subvol to local->xattr and call heal code to heal
+               custom xattr from hashed subvol to non-hashed subvol
+            */
+            if (local->need_xattr_heal && (local->mds_xattr)) {
+                dht_dir_set_heal_xattr(this, local, local->xattr,
+                                       local->mds_xattr, NULL, NULL);
+                dict_unref(local->mds_xattr);
+                local->mds_xattr = NULL;
+                local->need_xattr_heal = 0;
+                ret = dht_dir_xattr_heal(this, local);
+                if (ret)
+                    gf_msg(this->name, GF_LOG_ERROR, ret,
+                           DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                           "xattr heal failed for directory %s "
+                           " gfid %s ",
+                           local->loc.path, gfid);
+            } else {
+                /* Call function to save hashed subvol on inode
+                   ctx if internal mds xattr is not present and
+                   all subvols are up
                 */
-                if (conf->subvolume_cnt == 1)
-                        local->need_xattr_heal = 0;
-
-                if (IA_ISDIR (local->stbuf.ia_type)) {
-                        /* Code to update all extended attributed from hashed
-                           subvol to local->xattr and call heal code to heal
-                           custom xattr from hashed subvol to non-hashed subvol
-                        */
-                        if (local->need_xattr_heal && (local->mds_xattr)) {
-                                dht_dir_set_heal_xattr (this, local,
-                                                        local->xattr,
-                                                        local->mds_xattr, NULL,
-                                                        NULL);
-                                dict_unref (local->mds_xattr);
-                                local->mds_xattr = NULL;
-                                local->need_xattr_heal = 0;
-                                ret =  dht_dir_xattr_heal (this, local);
-                                if (ret)
-                                        gf_msg (this->name, GF_LOG_ERROR,
-                                                ret, DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                                "xattr heal failed for directory %s "
-                                                " gfid %s ", local->loc.path,
-                                                gfid);
-                        } else {
-                                /* Call function to save hashed subvol on inode
-                                   ctx if internal mds xattr is not present and
-                                   all subvols are up
-                                */
-                                if (inode && !__is_root_gfid (inode->gfid) &&
-                                    (!local->op_ret))
-                                        (void) dht_common_mark_mdsxattr (frame, NULL, 1);
-                        }
-                }
-                if (local->need_selfheal) {
-                        local->need_selfheal = 0;
-                        if (!__is_root_gfid (inode->gfid)) {
-                                gf_uuid_copy (local->gfid, local->mds_stbuf.ia_gfid);
-                                local->stbuf.ia_gid = local->mds_stbuf.ia_gid;
-                                local->stbuf.ia_uid = local->mds_stbuf.ia_uid;
-                                local->stbuf.ia_prot = local->mds_stbuf.ia_prot;
-                        } else {
-                                gf_uuid_copy (local->gfid, local->stbuf.ia_gfid);
-                                local->stbuf.ia_gid = local->prebuf.ia_gid;
-                                local->stbuf.ia_uid = local->prebuf.ia_uid;
-                                local->stbuf.ia_prot = local->prebuf.ia_prot;
-                        }
-
-                        copy = create_frame (this, this->ctx->pool);
-                        if (copy) {
-                                copy_local = dht_local_init (copy, &local->loc,
-                                                             NULL, 0);
-                                if (!copy_local) {
-                                        DHT_STACK_DESTROY (copy);
-                                        goto cont;
-                                }
-                                copy_local->stbuf = local->stbuf;
-                                copy_local->mds_stbuf = local->mds_stbuf;
-                                copy_local->mds_subvol = local->mds_subvol;
-                                copy->local = copy_local;
-                                FRAME_SU_DO (copy, dht_local_t);
-                                ret = synctask_new (this->ctx->env,
-                                                    dht_dir_attr_heal,
-                                                    dht_dir_attr_heal_done,
-                                                    copy, copy);
-                                if (ret) {
-                                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                                DHT_MSG_DIR_ATTR_HEAL_FAILED,
-                                                "Synctask creation failed to heal attr "
-                                                "for path %s gfid %s ",
-                                                local->loc.path, local->gfid);
-                                        DHT_STACK_DESTROY (copy);
-                                }
-                        }
-                }
-cont:
-                if (local->layout_mismatch) {
-                        /* Found layout mismatch in the directory, need to
-                           fix this in the inode context */
-                        dht_layout_unref (this, local->layout);
-                        local->layout = NULL;
-                        dht_lookup_directory (frame, this, &local->loc);
-                        return 0;
-                }
+                if (inode && !__is_root_gfid(inode->gfid) && (!local->op_ret))
+                    (void)dht_common_mark_mdsxattr(frame, NULL, 1);
+            }
+        }
+        if (local->need_selfheal) {
+            local->need_selfheal = 0;
+            if (!__is_root_gfid(inode->gfid)) {
+                gf_uuid_copy(local->gfid, local->mds_stbuf.ia_gfid);
+                local->stbuf.ia_gid = local->mds_stbuf.ia_gid;
+                local->stbuf.ia_uid = local->mds_stbuf.ia_uid;
+                local->stbuf.ia_prot = local->mds_stbuf.ia_prot;
+            } else {
+                gf_uuid_copy(local->gfid, local->stbuf.ia_gfid);
+                local->stbuf.ia_gid = local->prebuf.ia_gid;
+                local->stbuf.ia_uid = local->prebuf.ia_uid;
+                local->stbuf.ia_prot = local->prebuf.ia_prot;
+            }
 
-                if (local->need_lookup_everywhere) {
-                        /* As the current layout gave ENOENT error, we would
-                           need a new layout */
-                        dht_layout_unref (this, local->layout);
-                        local->layout = NULL;
-
-                        /* We know that current cached subvol is no more
-                           valid, get the new one */
-                        local->cached_subvol = NULL;
-                        dht_lookup_everywhere (frame, this, &local->loc);
-                        return 0;
-                }
-                if (local->return_estale) {
-                        local->op_ret = -1;
-                        local->op_errno = ESTALE;
+            copy = create_frame(this, this->ctx->pool);
+            if (copy) {
+                copy_local = dht_local_init(copy, &local->loc, NULL, 0);
+                if (!copy_local) {
+                    DHT_STACK_DESTROY(copy);
+                    goto cont;
+                }
+                copy_local->stbuf = local->stbuf;
+                copy_local->mds_stbuf = local->mds_stbuf;
+                copy_local->mds_subvol = local->mds_subvol;
+                copy->local = copy_local;
+                FRAME_SU_DO(copy, dht_local_t);
+                ret = synctask_new(this->ctx->env, dht_dir_attr_heal,
+                                   dht_dir_attr_heal_done, copy, copy);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, ENOMEM,
+                           DHT_MSG_DIR_ATTR_HEAL_FAILED,
+                           "Synctask creation failed to heal attr "
+                           "for path %s gfid %s ",
+                           local->loc.path, local->gfid);
+                    DHT_STACK_DESTROY(copy);
                 }
+            }
+        }
+    cont:
+        if (local->layout_mismatch) {
+            /* Found layout mismatch in the directory, need to
+               fix this in the inode context */
+            dht_layout_unref(this, local->layout);
+            local->layout = NULL;
+            dht_lookup_directory(frame, this, &local->loc);
+            return 0;
+        }
 
-                if (local->loc.parent) {
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->postparent, 1);
-                }
+        if (local->need_lookup_everywhere) {
+            /* As the current layout gave ENOENT error, we would
+               need a new layout */
+            dht_layout_unref(this, local->layout);
+            local->layout = NULL;
 
-                DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-                dht_set_fixed_dir_stat (&local->postparent);
-
-                /* local->stbuf is updated only from subvols which have a layout
-                 * The reason is to avoid choosing attr heal source from newly
-                 * added bricks. In case e.g we have only one subvol and for
-                 * some reason layout is not present on it, then local->stbuf
-                 * will be EINVAL. This is an indication that the subvols
-                 * active in the cluster do not have layouts on disk.
-                 * Unwind with ESTALE to trigger a fresh lookup */
-                if (is_dir && local->stbuf.ia_type == IA_INVAL) {
-                        local->op_ret = -1;
-                        local->op_errno = ESTALE;
-                }
-                /* Delete mds xattr at the time of STACK UNWIND */
-                if (local->xattr)
-                        GF_REMOVE_INTERNAL_XATTR (conf->mds_xattr_key, local->xattr);
+            /* We know that current cached subvol is no more
+               valid, get the new one */
+            local->cached_subvol = NULL;
+            dht_lookup_everywhere(frame, this, &local->loc);
+            return 0;
+        }
+        if (local->return_estale) {
+            local->op_ret = -1;
+            local->op_errno = ESTALE;
+        }
 
-                DHT_STACK_UNWIND (lookup, frame, local->op_ret, local->op_errno,
-                                  local->inode, &local->stbuf, local->xattr,
-                                  &local->postparent);
+        if (local->loc.parent) {
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->postparent, 1);
         }
 
+        DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+        dht_set_fixed_dir_stat(&local->postparent);
+
+        /* local->stbuf is updated only from subvols which have a layout
+         * The reason is to avoid choosing attr heal source from newly
+         * added bricks. In case e.g we have only one subvol and for
+         * some reason layout is not present on it, then local->stbuf
+         * will be EINVAL. This is an indication that the subvols
+         * active in the cluster do not have layouts on disk.
+         * Unwind with ESTALE to trigger a fresh lookup */
+        if (is_dir && local->stbuf.ia_type == IA_INVAL) {
+            local->op_ret = -1;
+            local->op_errno = ESTALE;
+        }
+        /* Delete mds xattr at the time of STACK UNWIND */
+        if (local->xattr)
+            GF_REMOVE_INTERNAL_XATTR(conf->mds_xattr_key, local->xattr);
+
+        DHT_STACK_UNWIND(lookup, frame, local->op_ret, local->op_errno,
+                         local->inode, &local->stbuf, local->xattr,
+                         &local->postparent);
+    }
+
 err:
-        return ret;
+    return ret;
 }
 
-
 int
-dht_lookup_linkfile_create_cbk (call_frame_t *frame, void *cookie,
-                                xlator_t *this,
-                                int32_t op_ret, int32_t op_errno,
-                                inode_t *inode, struct iatt *stbuf,
-                                struct iatt *preparent, struct iatt *postparent,
-                                dict_t *xdata)
+dht_lookup_linkfile_create_cbk(call_frame_t *frame, void *cookie,
+                               xlator_t *this, int32_t op_ret, int32_t op_errno,
+                               inode_t *inode, struct iatt *stbuf,
+                               struct iatt *preparent, struct iatt *postparent,
+                               dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *cached_subvol = NULL;
-        dht_conf_t   *conf = NULL;
-        int           ret = -1;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_local_t *local = NULL;
+    xlator_t *cached_subvol = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, out);
-
-        local = frame->local;
-        cached_subvol = local->cached_subvol;
-        conf = this->private;
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", this->private, out);
 
-        gf_uuid_unparse(local->loc.gfid, gfid);
+    local = frame->local;
+    cached_subvol = local->cached_subvol;
+    conf = this->private;
 
-        if (local->locked)
-                dht_unlock_namespace (frame, &local->lock[0]);
+    gf_uuid_unparse(local->loc.gfid, gfid);
 
-        ret = dht_layout_preset (this, local->cached_subvol, local->loc.inode);
-        if (ret < 0) {
-                gf_msg_debug (this->name, EINVAL,
-                              "Failed to set layout for subvolume %s, "
-                              "(gfid = %s)",
-                              cached_subvol ? cached_subvol->name : "<nil>",
-                              gfid);
-                local->op_ret = -1;
-                local->op_errno = EINVAL;
-                goto unwind;
-        }
+    if (local->locked)
+        dht_unlock_namespace(frame, &local->lock[0]);
 
-        local->op_ret = 0;
-        if ((local->stbuf.ia_nlink == 1)
-            && (conf && conf->unhashed_sticky_bit)) {
-                local->stbuf.ia_prot.sticky = 1;
-        }
+    ret = dht_layout_preset(this, local->cached_subvol, local->loc.inode);
+    if (ret < 0) {
+        gf_msg_debug(this->name, EINVAL,
+                     "Failed to set layout for subvolume %s, "
+                     "(gfid = %s)",
+                     cached_subvol ? cached_subvol->name : "<nil>", gfid);
+        local->op_ret = -1;
+        local->op_errno = EINVAL;
+        goto unwind;
+    }
 
-        if (local->loc.parent) {
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           postparent, 1);
-        }
+    local->op_ret = 0;
+    if ((local->stbuf.ia_nlink == 1) && (conf && conf->unhashed_sticky_bit)) {
+        local->stbuf.ia_prot.sticky = 1;
+    }
 
+    if (local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, postparent, 1);
+    }
 
 unwind:
-        gf_msg_debug (this->name, 0,
-                      "creation of linkto on hashed subvol:%s, "
-                      "returned with op_ret %d and op_errno %d: %s",
-                      local->hashed_subvol->name,
-                      op_ret, op_errno, uuid_utoa (local->loc.gfid));
+    gf_msg_debug(this->name, 0,
+                 "creation of linkto on hashed subvol:%s, "
+                 "returned with op_ret %d and op_errno %d: %s",
+                 local->hashed_subvol->name, op_ret, op_errno,
+                 uuid_utoa(local->loc.gfid));
 
-        if (local->linked == _gf_true)
-                dht_linkfile_attr_heal (frame, this);
+    if (local->linked == _gf_true)
+        dht_linkfile_attr_heal(frame, this);
 
+    dht_set_fixed_dir_stat(&local->postparent);
 
-        dht_set_fixed_dir_stat (&local->postparent);
-
-        DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-        DHT_STACK_UNWIND (lookup, frame, local->op_ret, local->op_errno,
-                          local->inode, &local->stbuf, local->xattr,
-                          &local->postparent);
+    DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+    DHT_STACK_UNWIND(lookup, frame, local->op_ret, local->op_errno,
+                     local->inode, &local->stbuf, local->xattr,
+                     &local->postparent);
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_lookup_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int op_ret, int op_errno,
-                       struct iatt *preparent, struct iatt *postparent,
-                       dict_t *xdata)
+dht_lookup_unlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int op_ret, int op_errno, struct iatt *preparent,
+                      struct iatt *postparent, dict_t *xdata)
 {
-        int             this_call_cnt = 0;
-        dht_local_t     *local = NULL;
-        const char      *path =  NULL;
+    int this_call_cnt = 0;
+    dht_local_t *local = NULL;
+    const char *path = NULL;
 
-        local =  (dht_local_t*)frame->local;
-        path = local->loc.path;
-        FRAME_SU_UNDO (frame, dht_local_t);
+    local = (dht_local_t *)frame->local;
+    path = local->loc.path;
+    FRAME_SU_UNDO(frame, dht_local_t);
 
-        gf_msg (this->name, GF_LOG_INFO, 0,
-                DHT_MSG_UNLINK_LOOKUP_INFO, "lookup_unlink returned with "
-                "op_ret -> %d and op-errno -> %d for %s", op_ret, op_errno,
-                ((path == NULL)? "null" : path ));
+    gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_UNLINK_LOOKUP_INFO,
+           "lookup_unlink returned with "
+           "op_ret -> %d and op-errno -> %d for %s",
+           op_ret, op_errno, ((path == NULL) ? "null" : path));
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                dht_lookup_everywhere_done (frame, this);
-        }
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        dht_lookup_everywhere_done(frame, this);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_lookup_unlink_of_false_linkto_cbk (call_frame_t *frame, void *cookie,
-                                       xlator_t *this, int op_ret, int op_errno,
-                                       struct iatt *preparent,
-                                       struct iatt *postparent, dict_t *xdata)
+dht_lookup_unlink_of_false_linkto_cbk(call_frame_t *frame, void *cookie,
+                                      xlator_t *this, int op_ret, int op_errno,
+                                      struct iatt *preparent,
+                                      struct iatt *postparent, dict_t *xdata)
 {
-        int             this_call_cnt = 0;
-        dht_local_t     *local = NULL;
-        const char      *path =  NULL;
+    int this_call_cnt = 0;
+    dht_local_t *local = NULL;
+    const char *path = NULL;
 
-        local =  (dht_local_t*)frame->local;
-        path = local->loc.path;
-
-        FRAME_SU_UNDO (frame, dht_local_t);
+    local = (dht_local_t *)frame->local;
+    path = local->loc.path;
 
-        gf_msg (this->name, GF_LOG_INFO, 0,
-                DHT_MSG_UNLINK_LOOKUP_INFO, "lookup_unlink returned with "
-                "op_ret -> %d and op-errno -> %d for %s", op_ret, op_errno,
-                ((path == NULL)? "null" : path ));
+    FRAME_SU_UNDO(frame, dht_local_t);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
+    gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_UNLINK_LOOKUP_INFO,
+           "lookup_unlink returned with "
+           "op_ret -> %d and op-errno -> %d for %s",
+           op_ret, op_errno, ((path == NULL) ? "null" : path));
 
-                if (op_ret == 0) {
-                        dht_lookup_everywhere_done (frame, this);
-                } else {
-                       /*When dht_lookup_everywhere is performed, one cached
-                         *and one hashed file was found and hashed file does
-                         *not point to the above mentioned cached node. So it
-                         *was considered as stale and an unlink was performed.
-                         *But unlink fails. So may be rebalance is in progress.
-                        *now ideally we have two data-files. One obtained during
-                         *lookup_everywhere and one where unlink-failed. So
-                         *at this point in time we cannot decide which one to
-                         *choose because there are chances of first cached
-                         *file is truncated after rebalance and if it is chosen
-                        *as cached node, application will fail. So return EIO.*/
-
-                        if (op_errno == EBUSY) {
-
-                                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                        DHT_MSG_UNLINK_FAILED,
-                                        "Could not unlink the linkto file as "
-                                        "either fd is open and/or linkto xattr "
-                                        "is set for %s",
-                                        ((path == NULL)? "null":path));
-
-                        }
-                        DHT_STACK_UNWIND (lookup, frame, -1, EIO, NULL, NULL,
-                                          NULL, NULL);
-
-                }
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        if (op_ret == 0) {
+            dht_lookup_everywhere_done(frame, this);
+        } else {
+            /*When dht_lookup_everywhere is performed, one cached
+             *and one hashed file was found and hashed file does
+             *not point to the above mentioned cached node. So it
+             *was considered as stale and an unlink was performed.
+             *But unlink fails. So may be rebalance is in progress.
+             *now ideally we have two data-files. One obtained during
+             *lookup_everywhere and one where unlink-failed. So
+             *at this point in time we cannot decide which one to
+             *choose because there are chances of first cached
+             *file is truncated after rebalance and if it is chosen
+             *as cached node, application will fail. So return EIO.*/
+
+            if (op_errno == EBUSY) {
+                gf_msg(this->name, GF_LOG_ERROR, op_errno,
+                       DHT_MSG_UNLINK_FAILED,
+                       "Could not unlink the linkto file as "
+                       "either fd is open and/or linkto xattr "
+                       "is set for %s",
+                       ((path == NULL) ? "null" : path));
+            }
+            DHT_STACK_UNWIND(lookup, frame, -1, EIO, NULL, NULL, NULL, NULL);
         }
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_lookup_unlink_stale_linkto_cbk (call_frame_t *frame, void *cookie,
-                                    xlator_t *this, int op_ret, int op_errno,
-                                    struct iatt *preparent,
-                                    struct iatt *postparent, dict_t *xdata)
+dht_lookup_unlink_stale_linkto_cbk(call_frame_t *frame, void *cookie,
+                                   xlator_t *this, int op_ret, int op_errno,
+                                   struct iatt *preparent,
+                                   struct iatt *postparent, dict_t *xdata)
 {
+    dht_local_t *local = NULL;
+    const char *path = NULL;
 
-        dht_local_t     *local = NULL;
-        const char      *path  = NULL;
-
-        /* NOTE:
-         * If stale file unlink fails either there is an open-fd or is not an
-         * dht-linkto-file then posix_unlink returns EBUSY, which is overwritten
-         *  to ENOENT
-         */
+    /* NOTE:
+     * If stale file unlink fails either there is an open-fd or is not an
+     * dht-linkto-file then posix_unlink returns EBUSY, which is overwritten
+     *  to ENOENT
+     */
 
-        local = frame->local;
+    local = frame->local;
 
-        if (local && local->loc.path)
-                path = local->loc.path;
+    if (local && local->loc.path)
+        path = local->loc.path;
 
-        gf_msg (this->name, GF_LOG_INFO, 0,
-                DHT_MSG_UNLINK_LOOKUP_INFO,
-                "Returned with op_ret %d and "
-                "op_errno %d for %s", op_ret, op_errno,
-                ((path==NULL)?"null":path));
+    gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_UNLINK_LOOKUP_INFO,
+           "Returned with op_ret %d and "
+           "op_errno %d for %s",
+           op_ret, op_errno, ((path == NULL) ? "null" : path));
 
-        FRAME_SU_UNDO (frame, dht_local_t);
-        DHT_STACK_UNWIND (lookup, frame, -1, ENOENT, NULL, NULL, NULL,
-                          NULL);
+    FRAME_SU_UNDO(frame, dht_local_t);
+    DHT_STACK_UNWIND(lookup, frame, -1, ENOENT, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_fill_dict_to_avoid_unlink_of_migrating_file (dict_t *dict) {
-
-        int                      ret = 0;
-        xlator_t                *this           = NULL;
-        char                    *linktoskip_key = NULL;
-
-        this    = THIS;
-        GF_VALIDATE_OR_GOTO ("dht", this, err);
+dht_fill_dict_to_avoid_unlink_of_migrating_file(dict_t *dict)
+{
+    int ret = 0;
+    xlator_t *this = NULL;
+    char *linktoskip_key = NULL;
 
-        if (dht_is_tier_xlator (this))
-                linktoskip_key = TIER_SKIP_NON_LINKTO_UNLINK;
-        else
-                linktoskip_key = DHT_SKIP_NON_LINKTO_UNLINK;
+    this = THIS;
+    GF_VALIDATE_OR_GOTO("dht", this, err);
 
-        ret = dict_set_int32 (dict, linktoskip_key, 1);
+    if (dht_is_tier_xlator(this))
+        linktoskip_key = TIER_SKIP_NON_LINKTO_UNLINK;
+    else
+        linktoskip_key = DHT_SKIP_NON_LINKTO_UNLINK;
 
-        if (ret)
-                goto err;
+    ret = dict_set_int32(dict, linktoskip_key, 1);
 
-        ret =  dict_set_int32 (dict, DHT_SKIP_OPEN_FD_UNLINK, 1);
+    if (ret)
+        goto err;
 
-        if (ret)
-                goto err;
+    ret = dict_set_int32(dict, DHT_SKIP_OPEN_FD_UNLINK, 1);
 
+    if (ret)
+        goto err;
 
-        return 0;
+    return 0;
 
 err:
-        return -1;
-
+    return -1;
 }
 
 int32_t
-dht_linkfile_create_lookup_cbk (call_frame_t *frame, void *cookie,
-                                xlator_t *this, int32_t op_ret,
-                                int32_t op_errno, inode_t *inode,
-                                struct iatt *buf, dict_t *xdata,
-                                struct iatt *postparent)
-{
-        dht_local_t *local                      = NULL;
-        int          call_cnt                   = 0, ret = 0;
-        xlator_t    *subvol                     = NULL;
-        uuid_t       gfid                       = {0, };
-        char         gfid_str[GF_UUID_BUF_SIZE] = {0};
-
-        subvol = cookie;
-        local = frame->local;
+dht_linkfile_create_lookup_cbk(call_frame_t *frame, void *cookie,
+                               xlator_t *this, int32_t op_ret, int32_t op_errno,
+                               inode_t *inode, struct iatt *buf, dict_t *xdata,
+                               struct iatt *postparent)
+{
+    dht_local_t *local = NULL;
+    int call_cnt = 0, ret = 0;
+    xlator_t *subvol = NULL;
+    uuid_t gfid = {
+        0,
+    };
+    char gfid_str[GF_UUID_BUF_SIZE] = {0};
+
+    subvol = cookie;
+    local = frame->local;
+
+    if (subvol == local->hashed_subvol) {
+        if ((op_ret == 0) || (op_errno != ENOENT))
+            local->dont_create_linkto = _gf_true;
+    } else {
+        if (gf_uuid_is_null(local->gfid))
+            gf_uuid_copy(gfid, local->loc.gfid);
+        else
+            gf_uuid_copy(gfid, local->gfid);
+
+        if ((op_ret == 0) && gf_uuid_compare(gfid, buf->ia_gfid)) {
+            gf_uuid_unparse(gfid, gfid_str);
+            gf_msg_debug(this->name, 0,
+                         "gfid (%s) different on cached subvol "
+                         "(%s) and looked up inode (%s), not "
+                         "creating linkto",
+                         uuid_utoa(buf->ia_gfid), subvol->name, gfid_str);
+            local->dont_create_linkto = _gf_true;
+        } else if (op_ret == -1) {
+            local->dont_create_linkto = _gf_true;
+        }
+    }
+
+    call_cnt = dht_frame_return(frame);
+    if (is_last_call(call_cnt)) {
+        if (local->dont_create_linkto)
+            goto no_linkto;
+        else {
+            gf_msg_debug(this->name, 0,
+                         "Creating linkto file on %s(hash) to "
+                         "%s on %s (gfid = %s)",
+                         local->hashed_subvol->name, local->loc.path,
+                         local->cached_subvol->name, gfid);
 
-        if (subvol == local->hashed_subvol) {
-                if ((op_ret == 0) || (op_errno != ENOENT))
-                        local->dont_create_linkto = _gf_true;
-        } else {
-                if (gf_uuid_is_null (local->gfid))
-                        gf_uuid_copy (gfid, local->loc.gfid);
-                else
-                        gf_uuid_copy (gfid, local->gfid);
-
-                if ((op_ret == 0) && gf_uuid_compare (gfid, buf->ia_gfid)) {
-                        gf_uuid_unparse (gfid, gfid_str);
-                        gf_msg_debug (this->name, 0,
-                                      "gfid (%s) different on cached subvol "
-                                      "(%s) and looked up inode (%s), not "
-                                      "creating linkto",
-                                      uuid_utoa (buf->ia_gfid), subvol->name,
-                                      gfid_str);
-                        local->dont_create_linkto = _gf_true;
-                } else if (op_ret == -1) {
-                        local->dont_create_linkto = _gf_true;
-                }
-        }
+            ret = dht_linkfile_create(frame, dht_lookup_linkfile_create_cbk,
+                                      this, local->cached_subvol,
+                                      local->hashed_subvol, &local->loc);
 
-        call_cnt = dht_frame_return (frame);
-        if (is_last_call (call_cnt)) {
-                if (local->dont_create_linkto)
-                        goto no_linkto;
-                else {
-                        gf_msg_debug (this->name, 0,
-                                      "Creating linkto file on %s(hash) to "
-                                      "%s on %s (gfid = %s)",
-                                      local->hashed_subvol->name,
-                                      local->loc.path,
-                                      local->cached_subvol->name, gfid);
-
-                        ret = dht_linkfile_create
-                                (frame, dht_lookup_linkfile_create_cbk,
-                                 this, local->cached_subvol,
-                                 local->hashed_subvol, &local->loc);
-
-                        if (ret < 0)
-                                goto no_linkto;
-                }
+            if (ret < 0)
+                goto no_linkto;
         }
+    }
 
-        return 0;
+    return 0;
 
 no_linkto:
-        gf_msg_debug (this->name, 0,
-                      "skipped linkto creation (path:%s) (gfid:%s) "
-                      "(hashed-subvol:%s) (cached-subvol:%s)",
-                      local->loc.path, gfid_str, local->hashed_subvol->name,
-                      local->cached_subvol->name);
-
-        dht_lookup_linkfile_create_cbk (frame, NULL, this, 0, 0,
-                                        local->loc.inode, &local->stbuf,
-                                        &local->preparent, &local->postparent,
-                                        local->xattr);
-        return 0;
-}
+    gf_msg_debug(this->name, 0,
+                 "skipped linkto creation (path:%s) (gfid:%s) "
+                 "(hashed-subvol:%s) (cached-subvol:%s)",
+                 local->loc.path, gfid_str, local->hashed_subvol->name,
+                 local->cached_subvol->name);
 
+    dht_lookup_linkfile_create_cbk(frame, NULL, this, 0, 0, local->loc.inode,
+                                   &local->stbuf, &local->preparent,
+                                   &local->postparent, local->xattr);
+    return 0;
+}
 
 int32_t
-dht_call_lookup_linkfile_create (call_frame_t *frame, void *cookie,
-                                 xlator_t *this, int32_t op_ret,
-                                 int32_t op_errno, dict_t *xdata)
+dht_call_lookup_linkfile_create(call_frame_t *frame, void *cookie,
+                                xlator_t *this, int32_t op_ret,
+                                int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local          = NULL;
-        char gfid[GF_UUID_BUF_SIZE] = {0};
-        int          i              = 0;
-        xlator_t    *subvol         = NULL;
-
-        local = frame->local;
-        if (gf_uuid_is_null (local->gfid))
-                gf_uuid_unparse (local->loc.gfid, gfid);
-        else
-                gf_uuid_unparse (local->gfid, gfid);
+    dht_local_t *local = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    int i = 0;
+    xlator_t *subvol = NULL;
 
-        if (op_ret < 0) {
-                gf_log (this->name, GF_LOG_WARNING,
-                        "protecting namespace failed, skipping linkto "
-                        "creation (path:%s)(gfid:%s)(hashed-subvol:%s)"
-                        "(cached-subvol:%s)", local->loc.path, gfid,
-                        local->hashed_subvol->name, local->cached_subvol->name);
-                goto err;
-        }
+    local = frame->local;
+    if (gf_uuid_is_null(local->gfid))
+        gf_uuid_unparse(local->loc.gfid, gfid);
+    else
+        gf_uuid_unparse(local->gfid, gfid);
 
-        local->locked = _gf_true;
+    if (op_ret < 0) {
+        gf_log(this->name, GF_LOG_WARNING,
+               "protecting namespace failed, skipping linkto "
+               "creation (path:%s)(gfid:%s)(hashed-subvol:%s)"
+               "(cached-subvol:%s)",
+               local->loc.path, gfid, local->hashed_subvol->name,
+               local->cached_subvol->name);
+        goto err;
+    }
 
+    local->locked = _gf_true;
 
-        local->call_cnt = 2;
+    local->call_cnt = 2;
 
-        for (i = 0; i < 2; i++) {
-                subvol = (subvol == NULL) ? local->hashed_subvol
-                        : local->cached_subvol;
+    for (i = 0; i < 2; i++) {
+        subvol = (subvol == NULL) ? local->hashed_subvol : local->cached_subvol;
 
-                STACK_WIND_COOKIE (frame, dht_linkfile_create_lookup_cbk,
-                                   subvol, subvol, subvol->fops->lookup,
-                                   &local->loc, NULL);
-        }
+        STACK_WIND_COOKIE(frame, dht_linkfile_create_lookup_cbk, subvol, subvol,
+                          subvol->fops->lookup, &local->loc, NULL);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        dht_lookup_linkfile_create_cbk (frame, NULL, this, 0, 0,
-                                        local->loc.inode,
-                                        &local->stbuf, &local->preparent,
-                                        &local->postparent, local->xattr);
-        return 0;
+    dht_lookup_linkfile_create_cbk(frame, NULL, this, 0, 0, local->loc.inode,
+                                   &local->stbuf, &local->preparent,
+                                   &local->postparent, local->xattr);
+    return 0;
 }
 
 /* Rebalance is performed from cached_node to hashed_node. Initial cached_node
@@ -2387,760 +2235,693 @@ err:
  */
 
 int
-dht_lookup_everywhere_done (call_frame_t *frame, xlator_t *this)
-{
-        int           ret                        = 0;
-        dht_local_t  *local                      = NULL;
-        xlator_t     *hashed_subvol              = NULL;
-        xlator_t     *cached_subvol              = NULL;
-        dht_layout_t *layout                     = NULL;
-        char gfid[GF_UUID_BUF_SIZE]              = {0};
-        gf_boolean_t  found_non_linkto_on_hashed = _gf_false;
-
-        local = frame->local;
-        hashed_subvol = local->hashed_subvol;
-        cached_subvol = local->cached_subvol;
+dht_lookup_everywhere_done(call_frame_t *frame, xlator_t *this)
+{
+    int ret = 0;
+    dht_local_t *local = NULL;
+    xlator_t *hashed_subvol = NULL;
+    xlator_t *cached_subvol = NULL;
+    dht_layout_t *layout = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    gf_boolean_t found_non_linkto_on_hashed = _gf_false;
+
+    local = frame->local;
+    hashed_subvol = local->hashed_subvol;
+    cached_subvol = local->cached_subvol;
+
+    gf_uuid_unparse(local->loc.gfid, gfid);
+
+    if (local->file_count && local->dir_count) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_FILE_TYPE_MISMATCH,
+               "path %s (gfid = %s)exists as a file on one "
+               "subvolume and directory on another. "
+               "Please fix it manually",
+               local->loc.path, gfid);
+        DHT_STACK_UNWIND(lookup, frame, -1, EIO, NULL, NULL, NULL, NULL);
+        return 0;
+    }
+
+    if (local->dir_count) {
+        dht_lookup_directory(frame, this, &local->loc);
+        return 0;
+    }
+
+    gf_msg_debug(this->name, 0,
+                 "STATUS: hashed_subvol %s "
+                 "cached_subvol %s",
+                 (hashed_subvol == NULL) ? "null" : hashed_subvol->name,
+                 (cached_subvol == NULL) ? "null" : cached_subvol->name);
+
+    if (!cached_subvol) {
+        if (local->skip_unlink.handle_valid_link && hashed_subvol) {
+            /*Purpose of "DHT_SKIP_NON_LINKTO_UNLINK":
+             * If this lookup is performed by rebalance and this
+             * rebalance process detected hashed file and by
+             * the time it sends the lookup request to cached node,
+             * file got migrated and now at initial hashed_node,
+             * final migrated file is present. With current logic,
+             * because this process fails to find the cached_node,
+             * it will unlink the file at initial hashed_node.
+             *
+             * So we avoid this by setting key, and checking at the
+             * posix_unlink that unlink the file only if file is a
+             * linkto file and not a migrated_file.
+             */
+
+            ret = dht_fill_dict_to_avoid_unlink_of_migrating_file(
+                local->xattr_req);
+
+            if (ret) {
+                /* If for some reason, setting key in the dict
+                 * fails, return with ENOENT, as with respect to
+                 * this process, it detected only a stale link
+                 * file.
+                 *
+                 * Next lookup will delete it.
+                 *
+                 * Performing deletion of stale link file when
+                 * setting key in dict fails, may cause the data
+                 * loss because of the above mentioned race.
+                 */
 
-        gf_uuid_unparse (local->loc.gfid, gfid);
-
-        if (local->file_count && local->dir_count) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_FILE_TYPE_MISMATCH,
-                        "path %s (gfid = %s)exists as a file on one "
-                        "subvolume and directory on another. "
-                        "Please fix it manually",
-                        local->loc.path, gfid);
-                DHT_STACK_UNWIND (lookup, frame, -1, EIO, NULL, NULL, NULL,
-                                  NULL);
-                return 0;
-        }
+                DHT_STACK_UNWIND(lookup, frame, -1, ENOENT, NULL, NULL, NULL,
+                                 NULL);
+            } else {
+                local->skip_unlink.handle_valid_link = _gf_false;
 
-        if (local->dir_count) {
-                dht_lookup_directory (frame, this, &local->loc);
-                return 0;
-        }
-
-        gf_msg_debug (this->name, 0, "STATUS: hashed_subvol %s "
-                      "cached_subvol %s",
-                      (hashed_subvol == NULL)?"null":hashed_subvol->name,
-                      (cached_subvol == NULL)?"null":cached_subvol->name);
+                gf_msg_debug(this->name, 0,
+                             "No Cached was found and "
+                             "unlink on hashed was skipped"
+                             " so performing now: %s",
+                             local->loc.path);
+                FRAME_SU_DO(frame, dht_local_t);
+                STACK_WIND(frame, dht_lookup_unlink_stale_linkto_cbk,
+                           hashed_subvol, hashed_subvol->fops->unlink,
+                           &local->loc, 0, local->xattr_req);
+            }
 
-        if (!cached_subvol) {
+        } else {
+            gf_msg_debug(this->name, 0,
+                         "There was no cached file and  "
+                         "unlink on hashed is not skipped %s",
+                         local->loc.path);
 
-                if (local->skip_unlink.handle_valid_link && hashed_subvol) {
-
-                        /*Purpose of "DHT_SKIP_NON_LINKTO_UNLINK":
-                         * If this lookup is performed by rebalance and this
-                         * rebalance process detected hashed file and by
-                         * the time it sends the lookup request to cached node,
-                         * file got migrated and now at initial hashed_node,
-                         * final migrated file is present. With current logic,
-                         * because this process fails to find the cached_node,
-                         * it will unlink the file at initial hashed_node.
-                         *
-                         * So we avoid this by setting key, and checking at the
-                         * posix_unlink that unlink the file only if file is a
-                         * linkto file and not a migrated_file.
-                         */
-
-
-                        ret = dht_fill_dict_to_avoid_unlink_of_migrating_file
-                              (local->xattr_req);
-
-                        if (ret) {
-                                /* If for some reason, setting key in the dict
-                                 * fails, return with ENOENT, as with respect to
-                                 * this process, it detected only a stale link
-                                 * file.
-                                 *
-                                 * Next lookup will delete it.
-                                 *
-                                 * Performing deletion of stale link file when
-                                 * setting key in dict fails, may cause the data
-                                 * loss because of the above mentioned race.
-                                 */
-
-
-                                DHT_STACK_UNWIND (lookup, frame, -1, ENOENT,
-                                                  NULL, NULL, NULL, NULL);
-                        } else {
-                                local->skip_unlink.handle_valid_link = _gf_false;
-
-                                gf_msg_debug (this->name, 0,
-                                              "No Cached was found and "
-                                              "unlink on hashed was skipped"
-                                              " so performing now: %s",
-                                              local->loc.path);
-                                FRAME_SU_DO (frame, dht_local_t);
-                                STACK_WIND (frame,
-                                            dht_lookup_unlink_stale_linkto_cbk,
-                                            hashed_subvol,
-                                            hashed_subvol->fops->unlink,
-                                            &local->loc, 0, local->xattr_req);
-                        }
-
-                } else  {
-
-                        gf_msg_debug (this->name, 0,
-                                      "There was no cached file and  "
-                                      "unlink on hashed is not skipped %s",
-                                      local->loc.path);
-
-                        DHT_STACK_UNWIND (lookup, frame, -1, ENOENT,
-                                          NULL, NULL, NULL, NULL);
-                }
-                return 0;
+            DHT_STACK_UNWIND(lookup, frame, -1, ENOENT, NULL, NULL, NULL, NULL);
         }
+        return 0;
+    }
 
-        /* At the time of dht_lookup, no file was found on hashed and that is
-         * why dht_lookup_everywhere is called, but by the time
-         * dht_lookup_everywhere
-         * reached to server, file might have already migrated. In that case we
-         * will find a migrated file at the hashed_node. In this case store the
-         * layout in context and return successfully.
-         */
-
-        if (hashed_subvol || local->need_lookup_everywhere) {
-
-                if (local->need_lookup_everywhere) {
-
-                        found_non_linkto_on_hashed = _gf_true;
-
-                } else if ((local->file_count == 1) &&
-                            (hashed_subvol == cached_subvol)) {
-
-                        gf_msg_debug (this->name, 0,
-                                      "found cached file on hashed subvolume "
-                                      "so store in context and return for %s",
-                                      local->loc.path);
+    /* At the time of dht_lookup, no file was found on hashed and that is
+     * why dht_lookup_everywhere is called, but by the time
+     * dht_lookup_everywhere
+     * reached to server, file might have already migrated. In that case we
+     * will find a migrated file at the hashed_node. In this case store the
+     * layout in context and return successfully.
+     */
 
-                        found_non_linkto_on_hashed = _gf_true;
-                }
+    if (hashed_subvol || local->need_lookup_everywhere) {
+        if (local->need_lookup_everywhere) {
+            found_non_linkto_on_hashed = _gf_true;
 
-                if (found_non_linkto_on_hashed)
-                        goto preset_layout;
+        } else if ((local->file_count == 1) &&
+                   (hashed_subvol == cached_subvol)) {
+            gf_msg_debug(this->name, 0,
+                         "found cached file on hashed subvolume "
+                         "so store in context and return for %s",
+                         local->loc.path);
 
+            found_non_linkto_on_hashed = _gf_true;
         }
 
+        if (found_non_linkto_on_hashed)
+            goto preset_layout;
+    }
 
-        if (hashed_subvol) {
-                if (local->skip_unlink.handle_valid_link == _gf_true) {
-                        if (cached_subvol == local->skip_unlink.hash_links_to) {
-
-                             if (gf_uuid_compare (local->skip_unlink.cached_gfid,
-                                               local->skip_unlink.hashed_gfid)){
-
-                                        /*GFID different, return error*/
-                                        DHT_STACK_UNWIND (lookup, frame, -1,
-                                                          ESTALE, NULL, NULL,
-                                                          NULL, NULL);
-
-                                        return 0;
-                                }
-
-                                ret = dht_layout_preset (this, cached_subvol,
-                                                         local->loc.inode);
-                                if (ret) {
-                                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                                DHT_MSG_LAYOUT_PRESET_FAILED,
-                                                "Could not set pre-set layout "
-                                                "for subvolume %s",
-                                                cached_subvol->name);
-                                }
-
-                                local->op_ret = (ret == 0) ? ret : -1;
-                                local->op_errno = (ret == 0) ? ret : EINVAL;
-
-                                /* Presence of local->cached_subvol validates
-                                 * that lookup from cached node is successful
-                                 */
-
-                                if (!local->op_ret && local->loc.parent) {
-                                        dht_inode_ctx_time_update
-                                                (local->loc.parent, this,
-                                                 &local->postparent, 1);
-                                }
-
-                                gf_msg_debug (this->name, 0,
-                                              "Skipped unlinking linkto file "
-                                              "on the hashed subvolume. "
-                                              "Returning success as it is a "
-                                              "valid linkto file. Path:%s"
-                                              ,local->loc.path);
+    if (hashed_subvol) {
+        if (local->skip_unlink.handle_valid_link == _gf_true) {
+            if (cached_subvol == local->skip_unlink.hash_links_to) {
+                if (gf_uuid_compare(local->skip_unlink.cached_gfid,
+                                    local->skip_unlink.hashed_gfid)) {
+                    /*GFID different, return error*/
+                    DHT_STACK_UNWIND(lookup, frame, -1, ESTALE, NULL, NULL,
+                                     NULL, NULL);
 
-                                goto unwind_hashed_and_cached;
-                        } else {
-
-                               local->skip_unlink.handle_valid_link = _gf_false;
-
-                               gf_msg_debug (this->name, 0,
-                                             "Linkto file found on hashed "
-                                             "subvol "
-                                             "and data file found on cached "
-                                             "subvolume. But linkto points to "
-                                             "different cached subvolume (%s) "
-                                             "path %s",
-                                            (local->skip_unlink.hash_links_to ?
-                                        local->skip_unlink.hash_links_to->name :
-                                             " <nil>"), local->loc.path);
-
-                               if (local->skip_unlink.opend_fd_count == 0) {
+                    return 0;
+                }
 
+                ret = dht_layout_preset(this, cached_subvol, local->loc.inode);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_INFO, 0,
+                           DHT_MSG_LAYOUT_PRESET_FAILED,
+                           "Could not set pre-set layout "
+                           "for subvolume %s",
+                           cached_subvol->name);
+                }
 
-                          ret = dht_fill_dict_to_avoid_unlink_of_migrating_file
-                                  (local->xattr_req);
+                local->op_ret = (ret == 0) ? ret : -1;
+                local->op_errno = (ret == 0) ? ret : EINVAL;
 
+                /* Presence of local->cached_subvol validates
+                 * that lookup from cached node is successful
+                 */
 
-                                        if (ret) {
-                                          DHT_STACK_UNWIND (lookup, frame, -1,
-                                                            EIO, NULL, NULL,
-                                                            NULL, NULL);
-                                        } else {
-                                                local->call_cnt = 1;
-                                                FRAME_SU_DO (frame, dht_local_t);
-                                                STACK_WIND (frame,
-                                          dht_lookup_unlink_of_false_linkto_cbk,
-                                                    hashed_subvol,
-                                                    hashed_subvol->fops->unlink,
-                                                    &local->loc, 0,
-                                                    local->xattr_req);
-                                        }
+                if (!local->op_ret && local->loc.parent) {
+                    dht_inode_ctx_time_update(local->loc.parent, this,
+                                              &local->postparent, 1);
+                }
 
-                                        return 0;
+                gf_msg_debug(this->name, 0,
+                             "Skipped unlinking linkto file "
+                             "on the hashed subvolume. "
+                             "Returning success as it is a "
+                             "valid linkto file. Path:%s",
+                             local->loc.path);
 
-                                }
-                        }
+                goto unwind_hashed_and_cached;
+            } else {
+                local->skip_unlink.handle_valid_link = _gf_false;
 
+                gf_msg_debug(this->name, 0,
+                             "Linkto file found on hashed "
+                             "subvol "
+                             "and data file found on cached "
+                             "subvolume. But linkto points to "
+                             "different cached subvolume (%s) "
+                             "path %s",
+                             (local->skip_unlink.hash_links_to
+                                  ? local->skip_unlink.hash_links_to->name
+                                  : " <nil>"),
+                             local->loc.path);
+
+                if (local->skip_unlink.opend_fd_count == 0) {
+                    ret = dht_fill_dict_to_avoid_unlink_of_migrating_file(
+                        local->xattr_req);
+
+                    if (ret) {
+                        DHT_STACK_UNWIND(lookup, frame, -1, EIO, NULL, NULL,
+                                         NULL, NULL);
+                    } else {
+                        local->call_cnt = 1;
+                        FRAME_SU_DO(frame, dht_local_t);
+                        STACK_WIND(frame, dht_lookup_unlink_of_false_linkto_cbk,
+                                   hashed_subvol, hashed_subvol->fops->unlink,
+                                   &local->loc, 0, local->xattr_req);
+                    }
+
+                    return 0;
                 }
+            }
         }
-
+    }
 
 preset_layout:
 
-        if (found_non_linkto_on_hashed) {
-
-                if (local->need_lookup_everywhere) {
-                        if (gf_uuid_compare (local->gfid, local->inode->gfid)) {
-                                /* GFID different, return error */
-                                DHT_STACK_UNWIND (lookup, frame, -1, ENOENT,
-                                                  NULL, NULL, NULL, NULL);
-                                return 0;
-                        }
-                }
-
-                local->op_ret = 0;
-                local->op_errno = 0;
-                layout = dht_layout_for_subvol (this, cached_subvol);
-                if (!layout) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_SUBVOL_INFO,
-                                "%s: no pre-set layout for subvolume %s,"
-                                " gfid = %s",
-                                local->loc.path, (cached_subvol ?
-                                                  cached_subvol->name :
-                                                  "<nil>"), gfid);
-                }
-
-                ret = dht_layout_set (this, local->inode, layout);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_SUBVOL_INFO,
-                                "%s: failed to set layout for subvol %s, "
-                                "gfid = %s",
-                                local->loc.path, (cached_subvol ?
-                                                  cached_subvol->name :
-                                                  "<nil>"), gfid);
-                }
-
-                if (local->loc.parent) {
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->postparent, 1);
-                }
-
-                DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-                dht_set_fixed_dir_stat (&local->postparent);
-                DHT_STACK_UNWIND (lookup, frame, local->op_ret,
-                                  local->op_errno, local->inode,
-                                  &local->stbuf, local->xattr,
-                                  &local->postparent);
+    if (found_non_linkto_on_hashed) {
+        if (local->need_lookup_everywhere) {
+            if (gf_uuid_compare(local->gfid, local->inode->gfid)) {
+                /* GFID different, return error */
+                DHT_STACK_UNWIND(lookup, frame, -1, ENOENT, NULL, NULL, NULL,
+                                 NULL);
                 return 0;
+            }
         }
 
-        if (!hashed_subvol) {
-
-                gf_msg_debug (this->name, 0,
-                              "Cannot create linkfile for %s on %s: "
-                              "hashed subvolume cannot be found, gfid = %s.",
-                              local->loc.path, cached_subvol->name, gfid);
+        local->op_ret = 0;
+        local->op_errno = 0;
+        layout = dht_layout_for_subvol(this, cached_subvol);
+        if (!layout) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+                   "%s: no pre-set layout for subvolume %s,"
+                   " gfid = %s",
+                   local->loc.path,
+                   (cached_subvol ? cached_subvol->name : "<nil>"), gfid);
+        }
 
-                local->op_ret = 0;
-                local->op_errno = 0;
+        ret = dht_layout_set(this, local->inode, layout);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+                   "%s: failed to set layout for subvol %s, "
+                   "gfid = %s",
+                   local->loc.path,
+                   (cached_subvol ? cached_subvol->name : "<nil>"), gfid);
+        }
 
-                ret = dht_layout_preset (frame->this, cached_subvol,
-                                         local->inode);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_LAYOUT_PRESET_FAILED,
-                                "Failed to set layout for subvol %s"
-                                ", gfid = %s",
-                                cached_subvol ? cached_subvol->name :
-                                "<nil>", gfid);
-                        local->op_ret = -1;
-                        local->op_errno = EINVAL;
-                }
+        if (local->loc.parent) {
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->postparent, 1);
+        }
 
-                if (local->loc.parent) {
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->postparent, 1);
-                }
+        DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+        dht_set_fixed_dir_stat(&local->postparent);
+        DHT_STACK_UNWIND(lookup, frame, local->op_ret, local->op_errno,
+                         local->inode, &local->stbuf, local->xattr,
+                         &local->postparent);
+        return 0;
+    }
 
-                DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-                dht_set_fixed_dir_stat (&local->postparent);
-                DHT_STACK_UNWIND (lookup, frame, local->op_ret,
-                                  local->op_errno, local->inode,
-                                  &local->stbuf, local->xattr,
-                                  &local->postparent);
-                return 0;
-        }
+    if (!hashed_subvol) {
+        gf_msg_debug(this->name, 0,
+                     "Cannot create linkfile for %s on %s: "
+                     "hashed subvolume cannot be found, gfid = %s.",
+                     local->loc.path, cached_subvol->name, gfid);
 
-        if (frame->root->op != GF_FOP_RENAME) {
-                local->current = &local->lock[0];
-                ret = dht_protect_namespace (frame, &local->loc, hashed_subvol,
-                                             &local->current->ns,
-                                             dht_call_lookup_linkfile_create);
-        } else {
-                gf_msg_debug (this->name, 0,
-                              "Creating linkto file on %s(hash) to %s on %s "
-                              "(gfid = %s)",
-                              hashed_subvol->name, local->loc.path,
-                              cached_subvol->name, gfid);
+        local->op_ret = 0;
+        local->op_errno = 0;
 
-                ret = dht_linkfile_create (frame,
-                                           dht_lookup_linkfile_create_cbk, this,
-                                           cached_subvol, hashed_subvol,
-                                           &local->loc);
+        ret = dht_layout_preset(frame->this, cached_subvol, local->inode);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LAYOUT_PRESET_FAILED,
+                   "Failed to set layout for subvol %s"
+                   ", gfid = %s",
+                   cached_subvol ? cached_subvol->name : "<nil>", gfid);
+            local->op_ret = -1;
+            local->op_errno = EINVAL;
         }
 
-        return ret;
+        if (local->loc.parent) {
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->postparent, 1);
+        }
 
-unwind_hashed_and_cached:
-        DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-        dht_set_fixed_dir_stat (&local->postparent);
-        DHT_STACK_UNWIND (lookup, frame, local->op_ret, local->op_errno,
-                          local->inode, &local->stbuf, local->xattr,
-                          &local->postparent);
+        DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+        dht_set_fixed_dir_stat(&local->postparent);
+        DHT_STACK_UNWIND(lookup, frame, local->op_ret, local->op_errno,
+                         local->inode, &local->stbuf, local->xattr,
+                         &local->postparent);
         return 0;
-}
-
-int
-dht_lookup_everywhere_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int32_t op_ret, int32_t op_errno,
-                           inode_t *inode, struct iatt *buf, dict_t *xattr,
-                           struct iatt *postparent)
-{
-        dht_local_t  *local         = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev          = NULL;
-        int           is_linkfile   = 0;
-        int           is_dir        = 0;
-        loc_t        *loc           = NULL;
-        xlator_t     *link_subvol   = NULL;
-        int           ret           = -1;
-        int32_t       fd_count      = 0;
-        dht_conf_t   *conf          = NULL;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
-        dict_t       *dict_req      = {0};
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, out);
-
-        local  = frame->local;
-        loc    = &local->loc;
-        conf   = this->private;
-
-        prev   = cookie;
-
-        gf_msg_debug (this->name, 0,
-                      "returned with op_ret %d and op_errno %d (%s) "
-                      "from subvol %s", op_ret, op_errno, loc->path,
-                      prev->name);
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        if (op_errno != ENOENT)
-                                local->op_errno = op_errno;
-                        goto unlock;
-                }
-
-                if (gf_uuid_is_null (local->gfid))
-                        gf_uuid_copy (local->gfid, buf->ia_gfid);
+    }
 
-                gf_uuid_unparse(local->gfid, gfid);
+    if (frame->root->op != GF_FOP_RENAME) {
+        local->current = &local->lock[0];
+        ret = dht_protect_namespace(frame, &local->loc, hashed_subvol,
+                                    &local->current->ns,
+                                    dht_call_lookup_linkfile_create);
+    } else {
+        gf_msg_debug(this->name, 0,
+                     "Creating linkto file on %s(hash) to %s on %s "
+                     "(gfid = %s)",
+                     hashed_subvol->name, local->loc.path, cached_subvol->name,
+                     gfid);
+
+        ret = dht_linkfile_create(frame, dht_lookup_linkfile_create_cbk, this,
+                                  cached_subvol, hashed_subvol, &local->loc);
+    }
+
+    return ret;
 
-                if (gf_uuid_compare (local->gfid, buf->ia_gfid)) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_GFID_MISMATCH,
-                                "%s: gfid differs on subvolume %s,"
-                                " gfid local = %s, gfid node = %s",
-                                loc->path, prev->name, gfid,
-                                uuid_utoa(buf->ia_gfid));
-                }
+unwind_hashed_and_cached:
+    DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+    dht_set_fixed_dir_stat(&local->postparent);
+    DHT_STACK_UNWIND(lookup, frame, local->op_ret, local->op_errno,
+                     local->inode, &local->stbuf, local->xattr,
+                     &local->postparent);
+    return 0;
+}
+
+int
+dht_lookup_everywhere_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int32_t op_ret, int32_t op_errno, inode_t *inode,
+                          struct iatt *buf, dict_t *xattr,
+                          struct iatt *postparent)
+{
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    int is_linkfile = 0;
+    int is_dir = 0;
+    loc_t *loc = NULL;
+    xlator_t *link_subvol = NULL;
+    int ret = -1;
+    int32_t fd_count = 0;
+    dht_conf_t *conf = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    dict_t *dict_req = {0};
+
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+    GF_VALIDATE_OR_GOTO("dht", this->private, out);
+
+    local = frame->local;
+    loc = &local->loc;
+    conf = this->private;
+
+    prev = cookie;
+
+    gf_msg_debug(this->name, 0,
+                 "returned with op_ret %d and op_errno %d (%s) "
+                 "from subvol %s",
+                 op_ret, op_errno, loc->path, prev->name);
+
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            if (op_errno != ENOENT)
+                local->op_errno = op_errno;
+            goto unlock;
+        }
 
-                is_linkfile = check_is_linkfile (inode, buf, xattr,
-                                                 conf->link_xattr_name);
-
-                if (is_linkfile) {
-                        link_subvol = dht_linkfile_subvol (this, inode, buf,
-                                                           xattr);
-                        gf_msg_debug (this->name, 0,
-                                      "found on %s linkfile %s (-> %s)",
-                                      prev->name, loc->path,
-                                      link_subvol ? link_subvol->name : "''");
-                        goto unlock;
-                }
+        if (gf_uuid_is_null(local->gfid))
+            gf_uuid_copy(local->gfid, buf->ia_gfid);
 
-                is_dir = check_is_dir (inode, buf, xattr);
+        gf_uuid_unparse(local->gfid, gfid);
 
-                /* non linkfile GFID takes precedence but don't overwrite
-                 gfid if we have already found a cached file*/
-                if (!local->cached_subvol)
-                        gf_uuid_copy (local->gfid, buf->ia_gfid);
+        if (gf_uuid_compare(local->gfid, buf->ia_gfid)) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_GFID_MISMATCH,
+                   "%s: gfid differs on subvolume %s,"
+                   " gfid local = %s, gfid node = %s",
+                   loc->path, prev->name, gfid, uuid_utoa(buf->ia_gfid));
+        }
 
-                if (is_dir) {
-                        local->dir_count++;
+        is_linkfile = check_is_linkfile(inode, buf, xattr,
+                                        conf->link_xattr_name);
 
-                        gf_msg_debug (this->name, 0,
-                                      "found on %s directory %s",
-                                      prev->name, loc->path);
-                } else {
-                        local->file_count++;
-
-                        gf_msg_debug (this->name, 0,
-                                      "found cached file on %s for %s",
-                                      prev->name, loc->path);
-
-                        if (!local->cached_subvol) {
-                                /* found one file */
-                                dht_iatt_merge (this, &local->stbuf, buf);
-
-                                local->xattr = dict_ref (xattr);
-                                local->cached_subvol = prev;
-
-                                gf_msg_debug (this->name, 0,
-                                              "storing cached on %s file"
-                                              " %s", prev->name, loc->path);
-
-                                dht_iatt_merge (this, &local->postparent,
-                                                postparent);
-
-                                gf_uuid_copy (local->skip_unlink.cached_gfid,
-                                           buf->ia_gfid);
-                        } else {
-                                /* This is where we need 'rename' both entries logic */
-                                gf_msg (this->name, GF_LOG_WARNING, 0,
-                                        DHT_MSG_FILE_ON_MULT_SUBVOL,
-                                        "multiple subvolumes (%s and %s) have "
-                                        "file %s (preferably rename the file "
-                                        "in the backend,and do a fresh lookup)",
-                                        local->cached_subvol->name,
-                                        prev->name, local->loc.path);
-                        }
-                }
+        if (is_linkfile) {
+            link_subvol = dht_linkfile_subvol(this, inode, buf, xattr);
+            gf_msg_debug(this->name, 0, "found on %s linkfile %s (-> %s)",
+                         prev->name, loc->path,
+                         link_subvol ? link_subvol->name : "''");
+            goto unlock;
         }
-unlock:
-        UNLOCK (&frame->lock);
 
-        if (is_linkfile) {
-                ret = dict_get_int32 (xattr, GLUSTERFS_OPEN_FD_COUNT, &fd_count);
+        is_dir = check_is_dir(inode, buf, xattr);
 
-                /*  Any linkto file found on the non-hashed subvolume should
-                 *  be unlinked (performed in the "else if" block below)
-                 *
-                 *  But if a linkto file is found on hashed subvolume, it may be
-                 *  pointing to valid cached node. So unlinking of linkto
-                 *  file on hashed subvolume is skipped and inside
-                 *  dht_lookup_everywhere_done, checks are performed. If this
-                 *  linkto file is found as stale linkto file, it is deleted
-                 *  otherwise unlink is skipped.
-                 */
+        /* non linkfile GFID takes precedence but don't overwrite
+         gfid if we have already found a cached file*/
+        if (!local->cached_subvol)
+            gf_uuid_copy(local->gfid, buf->ia_gfid);
 
-                if (local->hashed_subvol && local->hashed_subvol == prev) {
-
-                        local->skip_unlink.handle_valid_link = _gf_true;
-                        local->skip_unlink.opend_fd_count = fd_count;
-                        local->skip_unlink.hash_links_to = link_subvol;
-                        gf_uuid_copy (local->skip_unlink.hashed_gfid,
-                                   buf->ia_gfid);
-
-                        gf_msg_debug (this->name, 0, "Found"
-                                      " one linkto file on hashed subvol %s "
-                                      "for %s: Skipping unlinking till "
-                                      "everywhere_done", prev->name,
-                                      loc->path);
-
-                } else if (!ret && (fd_count == 0)) {
-
-                        dict_req = dict_new ();
-
-                        ret = dht_fill_dict_to_avoid_unlink_of_migrating_file
-                              (dict_req);
-
-                        if (ret) {
-
-                                /* Skip unlinking for dict_failure
-                                 *File is found as a linkto file on non-hashed,
-                                 *subvolume. In the current implementation,
-                                 *finding a linkto-file on non-hashed does not
-                                 *always implies that it is stale. So deletion
-                                 *of file should be done only when both fd is
-                                 *closed and linkto-xattr is set. In case of
-                                 *dict_set failure, avoid skipping of file.
-                                 *NOTE: dht_frame_return should get called for
-                                 *      this block.
-                                 */
-
-                                dict_unref (dict_req);
-
-                        } else {
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_SUBVOL_INFO,
-                                        "attempting deletion of stale linkfile "
-                                        "%s on %s (hashed subvol is %s)",
-                                        loc->path, prev->name,
-                                        (local->hashed_subvol?
-                                        local->hashed_subvol->name : "<null>"));
-                                /* *
-                                 * These stale files may be created using root
-                                 * user. Hence deletion will work only with
-                                 * root.
-                                 */
-                                FRAME_SU_DO (frame, dht_local_t);
-                                STACK_WIND (frame, dht_lookup_unlink_cbk,
-                                            prev, prev->fops->unlink, loc,
-                                            0, dict_req);
-
-                                dict_unref (dict_req);
-
-                                return 0;
-                        }
-                }
-        }
+        if (is_dir) {
+            local->dir_count++;
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                dht_lookup_everywhere_done (frame, this);
-        }
+            gf_msg_debug(this->name, 0, "found on %s directory %s", prev->name,
+                         loc->path);
+        } else {
+            local->file_count++;
 
-out:
-        return ret;
-}
+            gf_msg_debug(this->name, 0, "found cached file on %s for %s",
+                         prev->name, loc->path);
 
+            if (!local->cached_subvol) {
+                /* found one file */
+                dht_iatt_merge(this, &local->stbuf, buf);
 
-int
-dht_lookup_everywhere (call_frame_t *frame, xlator_t *this, loc_t *loc)
-{
-        dht_conf_t     *conf = NULL;
-        dht_local_t    *local = NULL;
-        int             i = 0;
-        int             call_cnt = 0;
+                local->xattr = dict_ref(xattr);
+                local->cached_subvol = prev;
+
+                gf_msg_debug(this->name, 0,
+                             "storing cached on %s file"
+                             " %s",
+                             prev->name, loc->path);
+
+                dht_iatt_merge(this, &local->postparent, postparent);
+
+                gf_uuid_copy(local->skip_unlink.cached_gfid, buf->ia_gfid);
+            } else {
+                /* This is where we need 'rename' both entries logic */
+                gf_msg(this->name, GF_LOG_WARNING, 0,
+                       DHT_MSG_FILE_ON_MULT_SUBVOL,
+                       "multiple subvolumes (%s and %s) have "
+                       "file %s (preferably rename the file "
+                       "in the backend,and do a fresh lookup)",
+                       local->cached_subvol->name, prev->name, local->loc.path);
+            }
+        }
+    }
+unlock:
+    UNLOCK(&frame->lock);
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, out);
-        GF_VALIDATE_OR_GOTO ("dht", loc, out);
+    if (is_linkfile) {
+        ret = dict_get_int32(xattr, GLUSTERFS_OPEN_FD_COUNT, &fd_count);
 
-        conf = this->private;
-        local = frame->local;
+        /*  Any linkto file found on the non-hashed subvolume should
+         *  be unlinked (performed in the "else if" block below)
+         *
+         *  But if a linkto file is found on hashed subvolume, it may be
+         *  pointing to valid cached node. So unlinking of linkto
+         *  file on hashed subvolume is skipped and inside
+         *  dht_lookup_everywhere_done, checks are performed. If this
+         *  linkto file is found as stale linkto file, it is deleted
+         *  otherwise unlink is skipped.
+         */
 
-        call_cnt = conf->subvolume_cnt;
-        local->call_cnt = call_cnt;
+        if (local->hashed_subvol && local->hashed_subvol == prev) {
+            local->skip_unlink.handle_valid_link = _gf_true;
+            local->skip_unlink.opend_fd_count = fd_count;
+            local->skip_unlink.hash_links_to = link_subvol;
+            gf_uuid_copy(local->skip_unlink.hashed_gfid, buf->ia_gfid);
+
+            gf_msg_debug(this->name, 0,
+                         "Found"
+                         " one linkto file on hashed subvol %s "
+                         "for %s: Skipping unlinking till "
+                         "everywhere_done",
+                         prev->name, loc->path);
+
+        } else if (!ret && (fd_count == 0)) {
+            dict_req = dict_new();
+
+            ret = dht_fill_dict_to_avoid_unlink_of_migrating_file(dict_req);
+
+            if (ret) {
+                /* Skip unlinking for dict_failure
+                 *File is found as a linkto file on non-hashed,
+                 *subvolume. In the current implementation,
+                 *finding a linkto-file on non-hashed does not
+                 *always implies that it is stale. So deletion
+                 *of file should be done only when both fd is
+                 *closed and linkto-xattr is set. In case of
+                 *dict_set failure, avoid skipping of file.
+                 *NOTE: dht_frame_return should get called for
+                 *      this block.
+                 */
 
-        if (!local->inode)
-                local->inode = inode_ref (loc->inode);
+                dict_unref(dict_req);
+
+            } else {
+                gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+                       "attempting deletion of stale linkfile "
+                       "%s on %s (hashed subvol is %s)",
+                       loc->path, prev->name,
+                       (local->hashed_subvol ? local->hashed_subvol->name
+                                             : "<null>"));
+                /* *
+                 * These stale files may be created using root
+                 * user. Hence deletion will work only with
+                 * root.
+                 */
+                FRAME_SU_DO(frame, dht_local_t);
+                STACK_WIND(frame, dht_lookup_unlink_cbk, prev,
+                           prev->fops->unlink, loc, 0, dict_req);
 
-        gf_msg_debug (this->name, 0,
-                      "winding lookup call to %d subvols", call_cnt);
+                dict_unref(dict_req);
 
-        for (i = 0; i < call_cnt; i++) {
-                STACK_WIND_COOKIE (frame, dht_lookup_everywhere_cbk,
-                                   conf->subvolumes[i], conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->lookup,
-                                   loc, local->xattr_req);
+                return 0;
+            }
         }
+    }
+
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        dht_lookup_everywhere_done(frame, this);
+    }
 
-        return 0;
 out:
-        DHT_STACK_UNWIND (lookup, frame, -1, EINVAL, NULL, NULL, NULL, NULL);
-err:
-        return -1;
+    return ret;
 }
 
-
 int
-dht_lookup_linkfile_cbk (call_frame_t *frame, void *cookie,
-                         xlator_t *this, int op_ret, int op_errno,
-                         inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                         struct iatt *postparent)
+dht_lookup_everywhere(call_frame_t *frame, xlator_t *this, loc_t *loc)
 {
-        xlator_t     *prev          = NULL;
-        dht_local_t  *local         = NULL;
-        xlator_t     *subvol        = NULL;
-        loc_t        *loc           = NULL;
-        dht_conf_t   *conf          = NULL;
-        int           ret           = 0;
-        char          gfid[GF_UUID_BUF_SIZE]     = {0};
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, unwind);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, unwind);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, unwind);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, unwind);
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    int i = 0;
+    int call_cnt = 0;
 
-        prev   = cookie;
-        subvol = prev;
-        conf   = this->private;
-        local  = frame->local;
-        loc    = &local->loc;
-
-        gf_uuid_unparse(loc->gfid, gfid);
-
-        if (op_ret == -1) {
-                gf_msg (this->name, GF_LOG_INFO, op_errno,
-                        DHT_MSG_LINK_FILE_LOOKUP_INFO,
-                        "Lookup of %s on %s (following linkfile) failed "
-                        ",gfid = %s", local->loc.path, subvol->name, gfid);
-
-                /* If cached subvol returned ENOTCONN, do not do
-                lookup_everywhere. We need to make sure linkfile does not get
-                removed, which can take away the namespace, and subvol is
-                anyways down. */
-
-                local->cached_subvol = NULL;
-                if (op_errno != ENOTCONN)
-                        goto err;
-                else
-                        goto unwind;
-        }
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", this->private, out);
+    GF_VALIDATE_OR_GOTO("dht", loc, out);
 
-        if (check_is_dir (inode, stbuf, xattr)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LINK_FILE_LOOKUP_INFO,
-                        "Lookup of %s on %s (following linkfile) reached dir,"
-                        " gfid = %s", local->loc.path, subvol->name, gfid);
-                goto err;
-        }
+    conf = this->private;
+    local = frame->local;
 
-        if (check_is_linkfile (inode, stbuf, xattr, conf->link_xattr_name)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LINK_FILE_LOOKUP_INFO,
-                        "lookup of %s on %s (following linkfile) reached link,"
-                        "gfid = %s", local->loc.path, subvol->name, gfid);
-                goto err;
-        }
+    call_cnt = conf->subvolume_cnt;
+    local->call_cnt = call_cnt;
 
-        if (gf_uuid_compare (local->gfid, stbuf->ia_gfid)) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_GFID_MISMATCH,
-                        "%s: gfid different on data file on %s,"
-                        " gfid local = %s, gfid node = %s ",
-                        local->loc.path, subvol->name, gfid,
-                        uuid_utoa(stbuf->ia_gfid));
-                goto err;
-        }
+    if (!local->inode)
+        local->inode = inode_ref(loc->inode);
 
-        if ((stbuf->ia_nlink == 1)
-            && (conf && conf->unhashed_sticky_bit)) {
-                stbuf->ia_prot.sticky = 1;
-        }
+    gf_msg_debug(this->name, 0, "winding lookup call to %d subvols", call_cnt);
 
-        ret = dht_layout_preset (this, prev, inode);
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LAYOUT_PRESET_FAILED,
-                        "Failed to set layout for subvolume %s,"
-                        "gfid = %s", prev->name, gfid);
-                op_ret   = -1;
-                op_errno = EINVAL;
-        }
+    for (i = 0; i < call_cnt; i++) {
+        STACK_WIND_COOKIE(frame, dht_lookup_everywhere_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->lookup, loc,
+                          local->xattr_req);
+    }
 
-        if (local->loc.parent) {
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           postparent, 1);
-        }
+    return 0;
+out:
+    DHT_STACK_UNWIND(lookup, frame, -1, EINVAL, NULL, NULL, NULL, NULL);
+err:
+    return -1;
+}
+
+int
+dht_lookup_linkfile_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, inode_t *inode,
+                        struct iatt *stbuf, dict_t *xattr,
+                        struct iatt *postparent)
+{
+    xlator_t *prev = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    loc_t *loc = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, unwind);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, unwind);
+    GF_VALIDATE_OR_GOTO("dht", this->private, unwind);
+    GF_VALIDATE_OR_GOTO("dht", cookie, unwind);
+
+    prev = cookie;
+    subvol = prev;
+    conf = this->private;
+    local = frame->local;
+    loc = &local->loc;
+
+    gf_uuid_unparse(loc->gfid, gfid);
+
+    if (op_ret == -1) {
+        gf_msg(this->name, GF_LOG_INFO, op_errno, DHT_MSG_LINK_FILE_LOOKUP_INFO,
+               "Lookup of %s on %s (following linkfile) failed "
+               ",gfid = %s",
+               local->loc.path, subvol->name, gfid);
+
+        /* If cached subvol returned ENOTCONN, do not do
+        lookup_everywhere. We need to make sure linkfile does not get
+        removed, which can take away the namespace, and subvol is
+        anyways down. */
+
+        local->cached_subvol = NULL;
+        if (op_errno != ENOTCONN)
+            goto err;
+        else
+            goto unwind;
+    }
+
+    if (check_is_dir(inode, stbuf, xattr)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LINK_FILE_LOOKUP_INFO,
+               "Lookup of %s on %s (following linkfile) reached dir,"
+               " gfid = %s",
+               local->loc.path, subvol->name, gfid);
+        goto err;
+    }
+
+    if (check_is_linkfile(inode, stbuf, xattr, conf->link_xattr_name)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LINK_FILE_LOOKUP_INFO,
+               "lookup of %s on %s (following linkfile) reached link,"
+               "gfid = %s",
+               local->loc.path, subvol->name, gfid);
+        goto err;
+    }
+
+    if (gf_uuid_compare(local->gfid, stbuf->ia_gfid)) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_GFID_MISMATCH,
+               "%s: gfid different on data file on %s,"
+               " gfid local = %s, gfid node = %s ",
+               local->loc.path, subvol->name, gfid, uuid_utoa(stbuf->ia_gfid));
+        goto err;
+    }
+
+    if ((stbuf->ia_nlink == 1) && (conf && conf->unhashed_sticky_bit)) {
+        stbuf->ia_prot.sticky = 1;
+    }
+
+    ret = dht_layout_preset(this, prev, inode);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LAYOUT_PRESET_FAILED,
+               "Failed to set layout for subvolume %s,"
+               "gfid = %s",
+               prev->name, gfid);
+        op_ret = -1;
+        op_errno = EINVAL;
+    }
+
+    if (local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, postparent, 1);
+    }
 
 unwind:
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
-        dht_set_fixed_dir_stat (postparent);
-        DHT_STACK_UNWIND (lookup, frame, op_ret, op_errno, inode, stbuf, xattr,
-                          postparent);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
+    dht_set_fixed_dir_stat(postparent);
+    DHT_STACK_UNWIND(lookup, frame, op_ret, op_errno, inode, stbuf, xattr,
+                     postparent);
 
-        return 0;
+    return 0;
 
 err:
-        dht_lookup_everywhere (frame, this, loc);
+    dht_lookup_everywhere(frame, this, loc);
 out:
-        return 0;
+    return 0;
 }
 
-
 int
-dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc)
+dht_lookup_directory(call_frame_t *frame, xlator_t *this, loc_t *loc)
 {
-        int           call_cnt = 0;
-        int           i = 0;
-        dht_conf_t   *conf = NULL;
-        dht_local_t  *local = NULL;
-        int           ret = 0;
+    int call_cnt = 0;
+    int i = 0;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    int ret = 0;
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, unwind);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, unwind);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, unwind);
-        GF_VALIDATE_OR_GOTO ("dht", loc, unwind);
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, unwind);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, unwind);
+    GF_VALIDATE_OR_GOTO("dht", this->private, unwind);
+    GF_VALIDATE_OR_GOTO("dht", loc, unwind);
 
-        conf = this->private;
-        local = frame->local;
-
-        call_cnt        = conf->subvolume_cnt;
-        local->call_cnt = call_cnt;
+    conf = this->private;
+    local = frame->local;
 
-        local->layout = dht_layout_new (this, conf->subvolume_cnt);
-        if (!local->layout) {
-                goto unwind;
-        }
+    call_cnt = conf->subvolume_cnt;
+    local->call_cnt = call_cnt;
 
-        if (local->xattr != NULL) {
-                dict_unref (local->xattr);
-                local->xattr = NULL;
-        }
+    local->layout = dht_layout_new(this, conf->subvolume_cnt);
+    if (!local->layout) {
+        goto unwind;
+    }
 
-        if (!gf_uuid_is_null (local->gfid)) {
-                ret = dict_set_gfuuid (local->xattr_req, "gfid-req",
-                                       local->gfid, true);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "%s: Failed to set dictionary value:"
-                                " key = gfid-req", local->loc.path);
-        }
+    if (local->xattr != NULL) {
+        dict_unref(local->xattr);
+        local->xattr = NULL;
+    }
 
-        for (i = 0; i < call_cnt; i++) {
-                STACK_WIND_COOKIE (frame, dht_lookup_dir_cbk,
-                                   conf->subvolumes[i], conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->lookup,
-                                   &local->loc, local->xattr_req);
-        }
-        return 0;
+    if (!gf_uuid_is_null(local->gfid)) {
+        ret = dict_set_gfuuid(local->xattr_req, "gfid-req", local->gfid, true);
+        if (ret)
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                   "%s: Failed to set dictionary value:"
+                   " key = gfid-req",
+                   local->loc.path);
+    }
+
+    for (i = 0; i < call_cnt; i++) {
+        STACK_WIND_COOKIE(
+            frame, dht_lookup_dir_cbk, conf->subvolumes[i], conf->subvolumes[i],
+            conf->subvolumes[i]->fops->lookup, &local->loc, local->xattr_req);
+    }
+    return 0;
 unwind:
-        DHT_STACK_UNWIND (lookup, frame, -1, ENOMEM, NULL, NULL, NULL, NULL);
+    DHT_STACK_UNWIND(lookup, frame, -1, ENOMEM, NULL, NULL, NULL, NULL);
 out:
-        return 0;
-
+    return 0;
 }
 
 /* Code to get hashed subvol based on inode and loc
@@ -3149,246 +2930,230 @@ out:
 */
 
 xlator_t *
-dht_inode_get_hashed_subvol (inode_t *inode, xlator_t *this, loc_t *loc)
-{
-        char                    *path           = NULL;
-        loc_t                    populate_loc   = {0, };
-        char                    *name           = NULL;
-        xlator_t                *hash_subvol    = NULL;
-
-        if (!inode)
-                return hash_subvol;
-
-        if (loc && loc->parent && loc->path) {
-                if (!loc->name) {
-                        name = strrchr (loc->path, '/');
-                        if (name) {
-                                loc->name = name + 1;
-                        } else {
-                                goto out;
-                        }
-                }
-                hash_subvol = dht_subvol_get_hashed (this, loc);
+dht_inode_get_hashed_subvol(inode_t *inode, xlator_t *this, loc_t *loc)
+{
+    char *path = NULL;
+    loc_t populate_loc = {
+        0,
+    };
+    char *name = NULL;
+    xlator_t *hash_subvol = NULL;
+
+    if (!inode)
+        return hash_subvol;
+
+    if (loc && loc->parent && loc->path) {
+        if (!loc->name) {
+            name = strrchr(loc->path, '/');
+            if (name) {
+                loc->name = name + 1;
+            } else {
                 goto out;
+            }
         }
+        hash_subvol = dht_subvol_get_hashed(this, loc);
+        goto out;
+    }
 
-        if (!gf_uuid_is_null (inode->gfid)) {
-                populate_loc.inode = inode_ref (inode);
-                populate_loc.parent = inode_parent (populate_loc.inode,
-                                                    NULL, NULL);
-                inode_path (populate_loc.inode, NULL, &path);
+    if (!gf_uuid_is_null(inode->gfid)) {
+        populate_loc.inode = inode_ref(inode);
+        populate_loc.parent = inode_parent(populate_loc.inode, NULL, NULL);
+        inode_path(populate_loc.inode, NULL, &path);
 
-                if (!path)
-                        goto out;
+        if (!path)
+            goto out;
 
-                populate_loc.path = path;
-                if (!populate_loc.name && populate_loc.path) {
-                        name = strrchr (populate_loc.path, '/');
-                        if (name) {
-                                populate_loc.name = name + 1;
+        populate_loc.path = path;
+        if (!populate_loc.name && populate_loc.path) {
+            name = strrchr(populate_loc.path, '/');
+            if (name) {
+                populate_loc.name = name + 1;
 
-                        } else {
-                                goto out;
-                        }
-                }
-                hash_subvol = dht_subvol_get_hashed (this, &populate_loc);
+            } else {
+                goto out;
+            }
         }
+        hash_subvol = dht_subvol_get_hashed(this, &populate_loc);
+    }
 out:
-        if (populate_loc.inode)
-                loc_wipe (&populate_loc);
-        return hash_subvol;
-}
-
-
-int
-dht_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno,
-                inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                struct iatt *postparent)
-{
-        char          is_linkfile   = 0;
-        char          is_dir        = 0;
-        xlator_t     *subvol        = NULL;
-        dht_conf_t   *conf          = NULL;
-        dht_local_t  *local         = NULL;
-        loc_t        *loc           = NULL;
-        xlator_t     *prev          = NULL;
-        int           ret           = 0;
-        dht_layout_t *parent_layout = NULL;
-        uint32_t      vol_commit_hash = 0;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, out);
-
-        conf  = this->private;
-
-        prev  = cookie;
-        local = frame->local;
-        loc   = &local->loc;
+    if (populate_loc.inode)
+        loc_wipe(&populate_loc);
+    return hash_subvol;
+}
+
+int
+dht_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+               int op_errno, inode_t *inode, struct iatt *stbuf, dict_t *xattr,
+               struct iatt *postparent)
+{
+    char is_linkfile = 0;
+    char is_dir = 0;
+    xlator_t *subvol = NULL;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    loc_t *loc = NULL;
+    xlator_t *prev = NULL;
+    int ret = 0;
+    dht_layout_t *parent_layout = NULL;
+    uint32_t vol_commit_hash = 0;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+    GF_VALIDATE_OR_GOTO("dht", this->private, out);
+
+    conf = this->private;
+
+    prev = cookie;
+    local = frame->local;
+    loc = &local->loc;
+
+    /* This is required for handling stale linkfile deletion,
+     * or any more call which happens from this 'loc'.
+     */
+    if (!op_ret && gf_uuid_is_null(local->gfid))
+        memcpy(local->gfid, stbuf->ia_gfid, 16);
+
+    gf_msg_debug(this->name, op_errno,
+                 "fresh_lookup returned for %s with op_ret %d", loc->path,
+                 op_ret);
+
+    if (!conf->vch_forced) {
+        ret = dict_get_uint32(xattr, conf->commithash_xattr_name,
+                              &vol_commit_hash);
+        if (ret == 0) {
+            conf->vol_commit_hash = vol_commit_hash;
+        }
+    }
 
-        /* This is required for handling stale linkfile deletion,
-         * or any more call which happens from this 'loc'.
-         */
-        if (!op_ret && gf_uuid_is_null (local->gfid))
-                memcpy (local->gfid, stbuf->ia_gfid, 16);
-
-        gf_msg_debug (this->name, op_errno,
-                      "fresh_lookup returned for %s with op_ret %d",
-                      loc->path, op_ret);
-
-        if (!conf->vch_forced) {
-                ret = dict_get_uint32 (xattr, conf->commithash_xattr_name,
-                                       &vol_commit_hash);
-                if (ret == 0) {
-                        conf->vol_commit_hash = vol_commit_hash;
-                }
+    if (ENTRY_MISSING(op_ret, op_errno)) {
+        if (1 == conf->subvolume_cnt) {
+            /* No need to lookup again */
+            goto out;
         }
 
-        if (ENTRY_MISSING (op_ret, op_errno)) {
+        gf_msg_debug(this->name, 0, "Entry %s missing on subvol %s", loc->path,
+                     prev->name);
 
-                if (1 == conf->subvolume_cnt) {
-                        /* No need to lookup again */
-                        goto out;
-                }
+        /* lookup-optimize supersedes lookup-unhashed settings,
+         *   - so if it is set, do not process search_unhashed
+         *   - except, in the case of rebalance daemon, we want to
+         *     force the lookup_everywhere behavior */
+        if (!conf->defrag && conf->lookup_optimize && loc->parent) {
+            ret = dht_inode_ctx_layout_get(loc->parent, this, &parent_layout);
+            if (ret || !parent_layout ||
+                (parent_layout->commit_hash != conf->vol_commit_hash)) {
+                gf_msg_debug(this->name, 0,
+                             "hashes don't match (ret - %d,"
+                             " parent_layout - %p, parent_hash - %x,"
+                             " vol_hash - %x), do global lookup",
+                             ret, parent_layout,
+                             (parent_layout ? parent_layout->commit_hash : -1),
+                             conf->vol_commit_hash);
+                local->op_errno = ENOENT;
+                dht_lookup_everywhere(frame, this, loc);
+                return 0;
+            }
+        } else {
+            if (conf->search_unhashed == GF_DHT_LOOKUP_UNHASHED_ON) {
+                local->op_errno = ENOENT;
+                dht_lookup_everywhere(frame, this, loc);
+                return 0;
+            }
 
-                gf_msg_debug (this->name, 0,
-                              "Entry %s missing on subvol %s",
-                              loc->path, prev->name);
-
-                /* lookup-optimize supersedes lookup-unhashed settings,
-                 *   - so if it is set, do not process search_unhashed
-                 *   - except, in the case of rebalance daemon, we want to
-                 *     force the lookup_everywhere behavior */
-                if (!conf->defrag && conf->lookup_optimize && loc->parent) {
-                        ret = dht_inode_ctx_layout_get (loc->parent, this,
-                                                        &parent_layout);
-                        if (ret || !parent_layout ||
-                            (parent_layout->commit_hash !=
-                             conf->vol_commit_hash)) {
-                                gf_msg_debug (this->name, 0,
-                                              "hashes don't match (ret - %d,"
-                                              " parent_layout - %p, parent_hash - %x,"
-                                              " vol_hash - %x), do global lookup",
-                                              ret, parent_layout,
-                                              (parent_layout ?
-                                              parent_layout->commit_hash : -1),
-                                              conf->vol_commit_hash);
-                                local->op_errno = ENOENT;
-                                dht_lookup_everywhere (frame, this, loc);
-                                return 0;
-                        }
-                } else {
-                        if (conf->search_unhashed ==
-                            GF_DHT_LOOKUP_UNHASHED_ON) {
-                                local->op_errno = ENOENT;
-                                dht_lookup_everywhere (frame, this, loc);
-                                return 0;
-                        }
-
-                        if ((conf->search_unhashed ==
-                            GF_DHT_LOOKUP_UNHASHED_AUTO) &&
-                            (loc->parent)) {
-                                ret = dht_inode_ctx_layout_get (loc->parent,
-                                                                this,
-                                                                &parent_layout);
-                                if (ret || !parent_layout)
-                                        goto out;
-                                if (parent_layout->search_unhashed) {
-                                        local->op_errno = ENOENT;
-                                        dht_lookup_everywhere (frame, this,
-                                                               loc);
-                                        return 0;
-                                }
-                        }
+            if ((conf->search_unhashed == GF_DHT_LOOKUP_UNHASHED_AUTO) &&
+                (loc->parent)) {
+                ret = dht_inode_ctx_layout_get(loc->parent, this,
+                                               &parent_layout);
+                if (ret || !parent_layout)
+                    goto out;
+                if (parent_layout->search_unhashed) {
+                    local->op_errno = ENOENT;
+                    dht_lookup_everywhere(frame, this, loc);
+                    return 0;
                 }
+            }
         }
+    }
 
-        if (op_ret == 0) {
-                is_dir      = check_is_dir (inode, stbuf, xattr);
-                if (is_dir) {
-                        local->inode = inode_ref (inode);
-                        local->xattr = dict_ref (xattr);
-                }
+    if (op_ret == 0) {
+        is_dir = check_is_dir(inode, stbuf, xattr);
+        if (is_dir) {
+            local->inode = inode_ref(inode);
+            local->xattr = dict_ref(xattr);
         }
+    }
 
-        if (is_dir || (op_ret == -1 && op_errno == ENOTCONN)) {
-                dht_lookup_directory (frame, this, &local->loc);
-                return 0;
-        }
+    if (is_dir || (op_ret == -1 && op_errno == ENOTCONN)) {
+        dht_lookup_directory(frame, this, &local->loc);
+        return 0;
+    }
 
-        if (op_ret == -1) {
-                gf_msg_debug (this->name, op_errno,
-                              "Lookup of %s for subvolume"
-                              " %s failed", loc->path,
-                              prev->name);
-                goto out;
-        }
+    if (op_ret == -1) {
+        gf_msg_debug(this->name, op_errno,
+                     "Lookup of %s for subvolume"
+                     " %s failed",
+                     loc->path, prev->name);
+        goto out;
+    }
 
-        is_linkfile = check_is_linkfile (inode, stbuf, xattr,
-                                         conf->link_xattr_name);
+    is_linkfile = check_is_linkfile(inode, stbuf, xattr, conf->link_xattr_name);
 
-        if (!is_linkfile) {
-                /* non-directory and not a linkfile */
+    if (!is_linkfile) {
+        /* non-directory and not a linkfile */
 
-                ret = dht_layout_preset (this, prev, inode);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_LAYOUT_PRESET_FAILED,
-                                "could not set pre-set layout for subvolume %s",
-                                prev->name);
-                        op_ret   = -1;
-                        op_errno = EINVAL;
-                        goto out;
-                }
-                goto out;
+        ret = dht_layout_preset(this, prev, inode);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LAYOUT_PRESET_FAILED,
+                   "could not set pre-set layout for subvolume %s", prev->name);
+            op_ret = -1;
+            op_errno = EINVAL;
+            goto out;
         }
+        goto out;
+    }
 
-        subvol = dht_linkfile_subvol (this, inode, stbuf, xattr);
-        if (!subvol) {
-
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_SUBVOL_INFO, "linkfile not having link "
-                        "subvol for %s", loc->path);
+    subvol = dht_linkfile_subvol(this, inode, stbuf, xattr);
+    if (!subvol) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+               "linkfile not having link "
+               "subvol for %s",
+               loc->path);
 
-                gf_msg_debug (this->name, 0,
-                              "linkfile not having link subvolume. path=%s",
-                              loc->path);
-                dht_lookup_everywhere (frame, this, loc);
-                return 0;
-        }
+        gf_msg_debug(this->name, 0,
+                     "linkfile not having link subvolume. path=%s", loc->path);
+        dht_lookup_everywhere(frame, this, loc);
+        return 0;
+    }
 
-        gf_msg_debug (this->name, 0,
-                      "Calling lookup on linkto target %s for path %s",
-                      subvol->name, loc->path);
+    gf_msg_debug(this->name, 0,
+                 "Calling lookup on linkto target %s for path %s", subvol->name,
+                 loc->path);
 
-        STACK_WIND_COOKIE (frame, dht_lookup_linkfile_cbk, subvol,
-                           subvol, subvol->fops->lookup,
-                           &local->loc, local->xattr_req);
+    STACK_WIND_COOKIE(frame, dht_lookup_linkfile_cbk, subvol, subvol,
+                      subvol->fops->lookup, &local->loc, local->xattr_req);
 
-        return 0;
+    return 0;
 
 out:
-        /*
-         * FIXME: postparent->ia_size and postparent->st_blocks do not have
-         * correct values. since, postparent corresponds to a directory these
-         * two members should have values equal to sum of corresponding values
-         * from each of the subvolume. See dht_iatt_merge for reference.
-         */
-
-        if (!op_ret && local && local->loc.parent) {
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           postparent, 1);
-        }
-
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
-        dht_set_fixed_dir_stat (postparent);
-        DHT_STACK_UNWIND (lookup, frame, op_ret, op_errno, inode, stbuf, xattr,
-                          postparent);
+    /*
+     * FIXME: postparent->ia_size and postparent->st_blocks do not have
+     * correct values. since, postparent corresponds to a directory these
+     * two members should have values equal to sum of corresponding values
+     * from each of the subvolume. See dht_iatt_merge for reference.
+     */
+
+    if (!op_ret && local && local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, postparent, 1);
+    }
+
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
+    dht_set_fixed_dir_stat(postparent);
+    DHT_STACK_UNWIND(lookup, frame, op_ret, op_errno, inode, stbuf, xattr,
+                     postparent);
 err:
-        return 0;
+    return 0;
 }
 
 /* For directories, check if acl xattrs have been requested (by the acl xlator),
@@ -3396,3537 +3161,3339 @@ err:
  * perform proper self-healing of dirs
  */
 void
-dht_check_and_set_acl_xattr_req (xlator_t *this, dict_t *xattr_req)
+dht_check_and_set_acl_xattr_req(xlator_t *this, dict_t *xattr_req)
 {
-        int     ret = 0;
+    int ret = 0;
 
-        GF_ASSERT (xattr_req);
+    GF_ASSERT(xattr_req);
 
-        if (!dict_get (xattr_req, POSIX_ACL_ACCESS_XATTR)) {
-                ret = dict_set_int8 (xattr_req, POSIX_ACL_ACCESS_XATTR, 0);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dictionary value:key = %s",
-                                POSIX_ACL_ACCESS_XATTR);
-        }
+    if (!dict_get(xattr_req, POSIX_ACL_ACCESS_XATTR)) {
+        ret = dict_set_int8(xattr_req, POSIX_ACL_ACCESS_XATTR, 0);
+        if (ret)
+            gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dictionary value:key = %s",
+                   POSIX_ACL_ACCESS_XATTR);
+    }
 
-        if (!dict_get (xattr_req, POSIX_ACL_DEFAULT_XATTR)) {
-                ret = dict_set_int8 (xattr_req, POSIX_ACL_DEFAULT_XATTR, 0);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dictionary value:key = %s",
-                                POSIX_ACL_DEFAULT_XATTR);
-        }
+    if (!dict_get(xattr_req, POSIX_ACL_DEFAULT_XATTR)) {
+        ret = dict_set_int8(xattr_req, POSIX_ACL_DEFAULT_XATTR, 0);
+        if (ret)
+            gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dictionary value:key = %s",
+                   POSIX_ACL_DEFAULT_XATTR);
+    }
 
-        return;
+    return;
 }
 
-
 /* for directories, we need the following info:
  * the layout : trusted.glusterfs.dht
  * the mds information : trusted.glusterfs.dht.mds
  * the acl info: See above
  */
 int
-dht_set_dir_xattr_req (xlator_t *this, loc_t *loc, dict_t *xattr_req)
-{
-        int ret   = -EINVAL;
-        dht_conf_t *conf = NULL;
-
-        conf = this->private;
-        if (!conf) {
-                goto err;
+dht_set_dir_xattr_req(xlator_t *this, loc_t *loc, dict_t *xattr_req)
+{
+    int ret = -EINVAL;
+    dht_conf_t *conf = NULL;
+
+    conf = this->private;
+    if (!conf) {
+        goto err;
+    }
+
+    if (!xattr_req) {
+        goto err;
+    }
+
+    /* Xattr to get the layout for a directory
+     */
+    ret = dict_set_uint32(xattr_req, conf->xattr_name, 4 * 4);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value:key = %s for "
+               "path %s",
+               conf->xattr_name, loc->path);
+        goto err;
+    }
+
+    /*Non-fatal failure */
+    ret = dict_set_uint32(xattr_req, conf->mds_xattr_key, 4);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value:key = %s for "
+               "path %s",
+               conf->mds_xattr_key, loc->path);
+    }
+
+    dht_check_and_set_acl_xattr_req(this, xattr_req);
+    ret = 0;
+err:
+    return ret;
+}
+
+int
+dht_set_file_xattr_req(xlator_t *this, loc_t *loc, dict_t *xattr_req)
+{
+    int ret = -EINVAL;
+    dht_conf_t *conf = NULL;
+
+    conf = this->private;
+    if (!conf) {
+        goto err;
+    }
+
+    if (!xattr_req) {
+        goto err;
+    }
+
+    /* Used to check whether this is a linkto file.
+     */
+    ret = dict_set_uint32(xattr_req, conf->link_xattr_name, 256);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value:key = %s for "
+               "path %s",
+               conf->link_xattr_name, loc->path);
+        goto err;
+    }
+
+    /* This is used to make sure we don't unlink linkto files
+     * which are the target of an ongoing file migration.
+     */
+    ret = dict_set_uint32(xattr_req, GLUSTERFS_OPEN_FD_COUNT, 4);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value:key = %s for "
+               "path %s",
+               GLUSTERFS_OPEN_FD_COUNT, loc->path);
+        goto err;
+    }
+
+    ret = 0;
+err:
+    return ret;
+}
+
+int
+dht_do_revalidate(call_frame_t *frame, xlator_t *this, loc_t *loc)
+{
+    xlator_t *subvol = NULL;
+    xlator_t *mds_subvol = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    int op_errno = -1;
+    dht_layout_t *layout = NULL;
+    int i = 0;
+    int call_cnt = 0;
+    int gen = 0;
+
+    conf = this->private;
+    if (!conf) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    local = frame->local;
+    if (!local) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg_debug(this->name, 0,
+                     "path = %s. No layout found in the inode ctx.", loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    /* Generation number has changed. This layout may be stale. */
+    if (layout->gen && (layout->gen < conf->gen)) {
+        gen = layout->gen;
+        dht_layout_unref(this, local->layout);
+        local->layout = NULL;
+        local->cached_subvol = NULL;
+
+        gf_msg_debug(this->name, 0,
+                     "path = %s. In memory layout may be stale."
+                     "(layout->gen (%d) is less than "
+                     "conf->gen (%d)). Calling fresh lookup.",
+                     loc->path, gen, conf->gen);
+
+        dht_do_fresh_lookup(frame, this, loc);
+        return 0;
+    }
+
+    local->inode = inode_ref(loc->inode);
+
+    /* Since we don't know whether this has changed,
+     * request all xattrs*/
+    ret = dht_set_file_xattr_req(this, loc, local->xattr_req);
+    if (ret) {
+        op_errno = -ret;
+        goto err;
+    }
+
+    ret = dht_set_dir_xattr_req(this, loc, local->xattr_req);
+    if (ret) {
+        op_errno = -ret;
+        goto err;
+    }
+
+    if (IA_ISDIR(local->inode->ia_type)) {
+        ret = dht_inode_ctx_mdsvol_get(local->inode, this, &mds_subvol);
+        if (ret || !mds_subvol) {
+            gf_msg_debug(this->name, 0, "path = %s. No mds subvol in inode ctx",
+                         local->loc.path);
         }
+        local->mds_subvol = mds_subvol;
+        local->call_cnt = conf->subvolume_cnt;
+        call_cnt = local->call_cnt;
 
-        if (!xattr_req) {
-                goto err;
+        for (i = 0; i < call_cnt; i++) {
+            STACK_WIND_COOKIE(frame, dht_revalidate_cbk, conf->subvolumes[i],
+                              conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->lookup, loc,
+                              local->xattr_req);
         }
+        return 0;
+    }
 
-        /* Xattr to get the layout for a directory
-         */
-        ret = dict_set_uint32 (xattr_req, conf->xattr_name, 4 * 4);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value:key = %s for "
-                        "path %s", conf->xattr_name, loc->path);
-                goto err;
-         }
+    /* If not a dir, this should be 1 */
+    local->call_cnt = layout->cnt;
+    call_cnt = local->call_cnt;
 
-        /*Non-fatal failure */
-        ret = dict_set_uint32 (xattr_req, conf->mds_xattr_key, 4);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value:key = %s for "
-                        "path %s", conf->mds_xattr_key, loc->path);
-        }
+    for (i = 0; i < call_cnt; i++) {
+        subvol = layout->list[i].xlator;
 
-        dht_check_and_set_acl_xattr_req (this, xattr_req);
-        ret = 0;
-err:
-        return ret;
-}
+        gf_msg_debug(this->name, 0,
+                     "path = %s. Calling "
+                     "revalidate lookup on %s",
+                     loc->path, subvol->name);
 
+        STACK_WIND_COOKIE(frame, dht_revalidate_cbk, subvol, subvol,
+                          subvol->fops->lookup, &local->loc, local->xattr_req);
+    }
+    return 0;
+err:
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
+    return 0;
+}
+
+int
+dht_do_fresh_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc)
+{
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+    xlator_t *hashed_subvol = NULL;
+    dht_local_t *local = NULL;
+    int op_errno = -1;
+    int call_cnt = 0;
+    int i = 0;
+
+    conf = this->private;
+    if (!conf) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    local = frame->local;
+    if (!local) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    /* Since we don't know whether this is a file or a directory,
+     * request all xattrs*/
+    ret = dht_set_file_xattr_req(this, loc, local->xattr_req);
+    if (ret) {
+        op_errno = -ret;
+        goto err;
+    }
+
+    ret = dht_set_dir_xattr_req(this, loc, local->xattr_req);
+    if (ret) {
+        op_errno = -ret;
+        goto err;
+    }
+
+    /* This should have been set in dht_lookup */
+    hashed_subvol = local->hashed_subvol;
+
+    if (!hashed_subvol) {
+        gf_msg_debug(this->name, 0,
+                     "%s: no subvolume in layout for path, "
+                     "checking on all the subvols to see if "
+                     "it is a directory",
+                     loc->path);
 
-int dht_set_file_xattr_req (xlator_t *this, loc_t *loc, dict_t *xattr_req)
-{
-        int ret   = -EINVAL;
-        dht_conf_t *conf = NULL;
+        call_cnt = conf->subvolume_cnt;
+        local->call_cnt = call_cnt;
 
-        conf = this->private;
-        if (!conf) {
-                goto err;
+        local->layout = dht_layout_new(this, conf->subvolume_cnt);
+        if (!local->layout) {
+            op_errno = ENOMEM;
+            goto err;
         }
 
-        if (!xattr_req) {
-                goto err;
-        }
+        gf_msg_debug(this->name, 0,
+                     "%s: Found null hashed subvol. Calling lookup"
+                     " on all nodes.",
+                     loc->path);
 
-        /* Used to check whether this is a linkto file.
-         */
-        ret = dict_set_uint32 (xattr_req,
-                               conf->link_xattr_name, 256);
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value:key = %s for "
-                        "path %s", conf->link_xattr_name, loc->path);
-                goto err;
+        for (i = 0; i < call_cnt; i++) {
+            STACK_WIND_COOKIE(frame, dht_lookup_dir_cbk, conf->subvolumes[i],
+                              conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->lookup, &local->loc,
+                              local->xattr_req);
         }
+        return 0;
+    }
 
-        /* This is used to make sure we don't unlink linkto files
-         * which are the target of an ongoing file migration.
-         */
-        ret = dict_set_uint32 (xattr_req,
-                               GLUSTERFS_OPEN_FD_COUNT, 4);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value:key = %s for "
-                        "path %s", GLUSTERFS_OPEN_FD_COUNT, loc->path);
-                goto err;
-        }
+    /* if we have the hashed_subvol, send the lookup there first so
+     * as to see whether we have a file or a directory */
+    gf_msg_debug(this->name, 0,
+                 "Calling fresh lookup for %s on"
+                 " %s",
+                 loc->path, hashed_subvol->name);
 
-        ret = 0;
+    STACK_WIND_COOKIE(frame, dht_lookup_cbk, hashed_subvol, hashed_subvol,
+                      hashed_subvol->fops->lookup, loc, local->xattr_req);
+    return 0;
 err:
-        return ret;
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
+    return 0;
 }
 
-
-
 int
-dht_do_revalidate (call_frame_t *frame, xlator_t *this, loc_t *loc)
+dht_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req)
 {
-        xlator_t     *subvol = NULL;
-        xlator_t     *mds_subvol = NULL;
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           ret    = -1;
-        int           op_errno = -1;
-        dht_layout_t *layout = NULL;
-        int           i = 0;
-        int           call_cnt = 0;
-        int           gen = 0;
+    xlator_t *hashed_subvol = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    int op_errno = -1;
+    loc_t new_loc = {
+        0,
+    };
 
-        conf = this->private;
-        if (!conf) {
-                op_errno = EINVAL;
-                goto err;
-        }
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
 
-        local = frame->local;
-        if (!local) {
-                op_errno = EINVAL;
-                goto err;
-        }
+    conf = this->private;
+    if (!conf)
+        goto err;
 
-        layout = local->layout;
-        if (!layout) {
-                gf_msg_debug (this->name, 0,
-                              "path = %s. No layout found in the inode ctx.",
-                              loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        /* Generation number has changed. This layout may be stale. */
-        if (layout->gen && (layout->gen < conf->gen)) {
-                gen = layout->gen;
-                dht_layout_unref (this, local->layout);
-                local->layout = NULL;
-                local->cached_subvol = NULL;
-
-                gf_msg_debug(this->name, 0,
-                             "path = %s. In memory layout may be stale."
-                             "(layout->gen (%d) is less than "
-                             "conf->gen (%d)). Calling fresh lookup.",
-                             loc->path, gen, conf->gen);
+    local = dht_local_init(frame, loc, NULL, GF_FOP_LOOKUP);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-                dht_do_fresh_lookup (frame, this, loc);
-                return 0;
-        }
+    ret = dht_filter_loc_subvol_key(this, loc, &new_loc, &hashed_subvol);
+    if (ret) {
+        loc_wipe(&local->loc);
+        ret = loc_dup(&new_loc, &local->loc);
 
-        local->inode = inode_ref (loc->inode);
+        /* we no longer need 'new_loc' entries */
+        loc_wipe(&new_loc);
 
-        /* Since we don't know whether this has changed,
-         * request all xattrs*/
-        ret = dht_set_file_xattr_req (this, loc, local->xattr_req);
-        if (ret) {
-                op_errno = -ret;
-                goto err;
+        /* check if loc_dup() is successful */
+        if (ret == -1) {
+            op_errno = errno;
+            gf_msg_debug(this->name, errno,
+                         "copying location failed for path=%s", loc->path);
+            goto err;
         }
+    }
 
-        ret = dht_set_dir_xattr_req (this, loc, local->xattr_req);
-        if (ret) {
-                op_errno = -ret;
-                goto err;
-        }
+    if (xattr_req) {
+        local->xattr_req = dict_ref(xattr_req);
+    } else {
+        local->xattr_req = dict_new();
+    }
 
-        if (IA_ISDIR (local->inode->ia_type)) {
-                ret = dht_inode_ctx_mdsvol_get (local->inode, this,
-                                                &mds_subvol);
-                if (ret || !mds_subvol) {
-                        gf_msg_debug (this->name, 0,
-                                      "path = %s. No mds subvol in inode ctx",
-                                      local->loc.path);
-                }
-                local->mds_subvol = mds_subvol;
-                local->call_cnt = conf->subvolume_cnt;
-                call_cnt = local->call_cnt;
-
-                for (i = 0; i < call_cnt; i++) {
-                        STACK_WIND_COOKIE (frame, dht_revalidate_cbk,
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->lookup,
-                                           loc, local->xattr_req);
-                }
-                return 0;
-        }
+    /* Nameless lookup */
 
-        /* If not a dir, this should be 1 */
-        local->call_cnt = layout->cnt;
-        call_cnt = local->call_cnt;
+    if (gf_uuid_is_null(loc->pargfid) && !gf_uuid_is_null(loc->gfid) &&
+        !__is_root_gfid(loc->inode->gfid)) {
+        local->cached_subvol = NULL;
+        dht_do_discover(frame, this, loc);
+        return 0;
+    }
 
-        for (i = 0; i < call_cnt; i++) {
-                subvol = layout->list[i].xlator;
+    if (loc_is_root(loc)) {
+        ret = dict_set_uint32(local->xattr_req, conf->commithash_xattr_name,
+                              sizeof(uint32_t));
+    }
 
-                gf_msg_debug (this->name, 0, "path = %s. Calling "
-                              "revalidate lookup on %s",
-                              loc->path, subvol->name);
+    if (!hashed_subvol)
+        hashed_subvol = dht_subvol_get_hashed(this, loc);
+    local->hashed_subvol = hashed_subvol;
 
-                STACK_WIND_COOKIE (frame, dht_revalidate_cbk, subvol,
-                                   subvol, subvol->fops->lookup,
-                                   &local->loc, local->xattr_req);
-        }
+    /* The entry has been looked up before and has an inode_ctx set
+     */
+    if (is_revalidate(loc)) {
+        dht_do_revalidate(frame, this, loc);
         return 0;
-err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL);
+    } else {
+        dht_do_fresh_lookup(frame, this, loc);
         return 0;
-}
-
-int
-dht_do_fresh_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc)
-{
-        int           ret    = -1;
-        dht_conf_t   *conf  = NULL;
-        xlator_t     *hashed_subvol = NULL;
-        dht_local_t  *local  = NULL;
-        int           op_errno = -1;
-        int           call_cnt = 0;
-        int           i        = 0;
-
-        conf = this->private;
-        if (!conf) {
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        local = frame->local;
-        if (!local) {
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        /* Since we don't know whether this is a file or a directory,
-         * request all xattrs*/
-        ret = dht_set_file_xattr_req (this, loc, local->xattr_req);
-        if (ret) {
-                op_errno = -ret;
-                goto err;
-        }
-
-        ret = dht_set_dir_xattr_req (this, loc, local->xattr_req);
-        if (ret) {
-                op_errno = -ret;
-                goto err;
-        }
-
-        /* This should have been set in dht_lookup */
-        hashed_subvol = local->hashed_subvol;
-
-        if (!hashed_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "%s: no subvolume in layout for path, "
-                              "checking on all the subvols to see if "
-                              "it is a directory", loc->path);
-
-                call_cnt   = conf->subvolume_cnt;
-                local->call_cnt = call_cnt;
-
-                local->layout = dht_layout_new (this,
-                                                conf->subvolume_cnt);
-                if (!local->layout) {
-                        op_errno = ENOMEM;
-                        goto err;
-                }
-
-                gf_msg_debug (this->name, 0,
-                              "%s: Found null hashed subvol. Calling lookup"
-                              " on all nodes.", loc->path);
+    }
 
-                for (i = 0; i < call_cnt; i++) {
-                        STACK_WIND_COOKIE (frame, dht_lookup_dir_cbk,
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->lookup,
-                                           &local->loc, local->xattr_req);
-                }
-                return 0;
-        }
-
-        /* if we have the hashed_subvol, send the lookup there first so
-         * as to see whether we have a file or a directory */
-        gf_msg_debug (this->name, 0, "Calling fresh lookup for %s on"
-                      " %s", loc->path, hashed_subvol->name);
-
-        STACK_WIND_COOKIE (frame, dht_lookup_cbk, hashed_subvol,
-                           hashed_subvol, hashed_subvol->fops->lookup,
-                           loc, local->xattr_req);
-        return 0;
+    return 0;
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL);
-        return 0;
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
+    return 0;
 }
 
-
 int
-dht_lookup (call_frame_t *frame, xlator_t *this,
-            loc_t *loc, dict_t *xattr_req)
+dht_unlink_linkfile_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, struct iatt *preparent,
+                        struct iatt *postparent, dict_t *xdata)
 {
-        xlator_t     *hashed_subvol = NULL;
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           ret    = -1;
-        int           op_errno = -1;
-        loc_t         new_loc = {0,};
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-
-        conf = this->private;
-        if (!conf)
-                goto err;
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_LOOKUP);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        ret = dht_filter_loc_subvol_key (this, loc, &new_loc,
-                                         &hashed_subvol);
-        if (ret) {
-                loc_wipe (&local->loc);
-                ret = loc_dup (&new_loc, &local->loc);
-
-                /* we no longer need 'new_loc' entries */
-                loc_wipe (&new_loc);
-
-                /* check if loc_dup() is successful */
-                if (ret == -1) {
-                        op_errno = errno;
-                        gf_msg_debug (this->name, errno,
-                                      "copying location failed for path=%s",
-                                      loc->path);
-                        goto err;
-                }
-        }
-
-        if (xattr_req) {
-                local->xattr_req = dict_ref (xattr_req);
-        } else {
-                local->xattr_req = dict_new ();
-        }
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
 
-        /* Nameless lookup */
+    local = frame->local;
+    prev = cookie;
 
-        if (gf_uuid_is_null (loc->pargfid) && !gf_uuid_is_null (loc->gfid) &&
-            !__is_root_gfid (loc->inode->gfid)) {
-                local->cached_subvol = NULL;
-                dht_do_discover (frame, this, loc);
-                return 0;
-        }
-
-        if (loc_is_root (loc)) {
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->commithash_xattr_name,
-                                       sizeof(uint32_t));
+    LOCK(&frame->lock);
+    {
+        if ((op_ret == -1) &&
+            !((op_errno == ENOENT) || (op_errno == ENOTCONN))) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno,
+                         "Unlink link: subvolume %s"
+                         " returned -1",
+                         prev->name);
+            goto unlock;
         }
 
-        if (!hashed_subvol)
-                hashed_subvol = dht_subvol_get_hashed (this, loc);
-        local->hashed_subvol = hashed_subvol;
-
+        local->op_ret = 0;
+    }
+unlock:
+    UNLOCK(&frame->lock);
 
-        /* The entry has been looked up before and has an inode_ctx set
-         */
-        if (is_revalidate (loc)) {
-                dht_do_revalidate (frame, this, loc);
-                return 0;
-        } else  {
-                dht_do_fresh_lookup (frame, this, loc);
-                return 0;
-        }
+    dht_set_fixed_dir_stat(&local->preparent);
+    dht_set_fixed_dir_stat(&local->postparent);
+    DHT_STACK_UNWIND(unlink, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, xdata);
 
-        return 0;
-err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL);
-        return 0;
+    return 0;
 }
 
 int
-dht_unlink_linkfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int op_ret, int op_errno, struct iatt *preparent,
-                         struct iatt *postparent, dict_t *xdata)
+dht_unlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+               int op_errno, struct iatt *preparent, struct iatt *postparent,
+               dict_t *xdata)
 {
-        dht_local_t     *local          = NULL;
-        xlator_t        *prev           = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *hashed_subvol = NULL;
 
-        local = frame->local;
-        prev  = cookie;
-
-        LOCK (&frame->lock);
-        {
-                if ((op_ret == -1) && !((op_errno == ENOENT) ||
-                                        (op_errno == ENOTCONN))) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "Unlink link: subvolume %s"
-                                      " returned -1",
-                                      prev->name);
-                        goto unlock;
-                }
+    local = frame->local;
+    prev = cookie;
 
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            if (op_errno != ENOENT) {
+                local->op_ret = -1;
+                local->op_errno = op_errno;
+            } else {
                 local->op_ret = 0;
+            }
+            gf_msg_debug(this->name, op_errno,
+                         "Unlink: subvolume %s returned -1", prev->name);
+            goto unlock;
         }
-unlock:
-        UNLOCK (&frame->lock);
-
-        dht_set_fixed_dir_stat (&local->preparent);
-        dht_set_fixed_dir_stat (&local->postparent);
-        DHT_STACK_UNWIND (unlink, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, xdata);
 
-        return 0;
-}
-
-int
-dht_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, struct iatt *preparent,
-                struct iatt *postparent, dict_t *xdata)
-{
-        dht_local_t     *local          = NULL;
-        xlator_t        *prev           = NULL;
-        xlator_t        *hashed_subvol  = NULL;
-
-        local = frame->local;
-        prev  = cookie;
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        if (op_errno != ENOENT) {
-                                local->op_ret   = -1;
-                                local->op_errno = op_errno;
-                        } else {
-                                local->op_ret = 0;
-                        }
-                        gf_msg_debug (this->name, op_errno,
-                                      "Unlink: subvolume %s returned -1",
-                                       prev->name);
-                        goto unlock;
-                }
-
-                local->op_ret = 0;
+        local->op_ret = 0;
 
-                local->postparent = *postparent;
-                local->preparent = *preparent;
+        local->postparent = *postparent;
+        local->preparent = *preparent;
 
-                if (local->loc.parent) {
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->preparent, 0);
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->postparent, 1);
-                }
+        if (local->loc.parent) {
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->preparent, 0);
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->postparent, 1);
         }
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        if (!local->op_ret) {
-                hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
-                if (hashed_subvol && hashed_subvol != local->cached_subvol) {
-                        /*
-                         * If hashed and cached are different, then we need
-                         * to unlink linkfile from hashed subvol if data
-                         * file is deleted successfully
-                         */
-                         STACK_WIND_COOKIE (frame, dht_unlink_linkfile_cbk,
-                                            hashed_subvol, hashed_subvol,
-                                            hashed_subvol->fops->unlink,
-                                            &local->loc, local->flags, xdata);
-                         return 0;
-                }
+    if (!local->op_ret) {
+        hashed_subvol = dht_subvol_get_hashed(this, &local->loc);
+        if (hashed_subvol && hashed_subvol != local->cached_subvol) {
+            /*
+             * If hashed and cached are different, then we need
+             * to unlink linkfile from hashed subvol if data
+             * file is deleted successfully
+             */
+            STACK_WIND_COOKIE(frame, dht_unlink_linkfile_cbk, hashed_subvol,
+                              hashed_subvol, hashed_subvol->fops->unlink,
+                              &local->loc, local->flags, xdata);
+            return 0;
         }
+    }
 
-        dht_set_fixed_dir_stat (&local->preparent);
-        dht_set_fixed_dir_stat (&local->postparent);
-        DHT_STACK_UNWIND (unlink, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, xdata);
+    dht_set_fixed_dir_stat(&local->preparent);
+    dht_set_fixed_dir_stat(&local->postparent);
+    DHT_STACK_UNWIND(unlink, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, xdata);
 
-        return 0;
+    return 0;
 }
 
 static int
-dht_common_setxattr_cbk (call_frame_t *frame, void *cookie,
-                         xlator_t *this, int32_t op_ret, int32_t op_errno,
-                         dict_t *xdata)
+dht_common_setxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-         DHT_STACK_UNWIND (setxattr, frame, op_ret, op_errno, xdata);
-         return 0;
+    DHT_STACK_UNWIND(setxattr, frame, op_ret, op_errno, xdata);
+    return 0;
 }
 
-
-
 static int
-dht_fix_layout_setxattr_cbk (call_frame_t *frame, void *cookie,
-                             xlator_t *this, int32_t op_ret, int32_t op_errno,
-                             dict_t *xdata)
+dht_fix_layout_setxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                            int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t   *local   = NULL;
-        dht_layout_t  *layout  = NULL;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
 
-        if (op_ret == 0) {
+    if (op_ret == 0) {
+        /* update the layout in the inode ctx */
+        local = frame->local;
+        layout = local->selfheal.layout;
 
-                /* update the layout in the inode ctx */
-                local = frame->local;
-                layout = local->selfheal.layout;
+        dht_layout_set(this, local->loc.inode, layout);
+    }
 
-                dht_layout_set (this, local->loc.inode, layout);
-        }
-
-         DHT_STACK_UNWIND (setxattr, frame, op_ret, op_errno, xdata);
-         return 0;
+    DHT_STACK_UNWIND(setxattr, frame, op_ret, op_errno, xdata);
+    return 0;
 }
 
-
 int
-dht_err_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-             int op_ret, int op_errno, dict_t *xdata)
+dht_err_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+            int op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
 
-        local = frame->local;
-        prev = cookie;
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "subvolume %s returned -1",
-                                      prev->name);
-                        goto unlock;
-                }
+    local = frame->local;
+    prev = cookie;
 
-                local->op_ret = 0;
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                         prev->name);
+            goto unlock;
         }
+
+        local->op_ret = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
-
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                if ((local->fop == GF_FOP_SETXATTR) ||
-                    (local->fop == GF_FOP_FSETXATTR)) {
-                        DHT_STACK_UNWIND (setxattr, frame, local->op_ret,
-                                          local->op_errno, NULL);
-                }
-                if ((local->fop == GF_FOP_REMOVEXATTR) ||
-                    (local->fop == GF_FOP_FREMOVEXATTR)) {
-                        DHT_STACK_UNWIND (removexattr, frame, local->op_ret,
-                                          local->op_errno, NULL);
-                }
+    UNLOCK(&frame->lock);
+
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        if ((local->fop == GF_FOP_SETXATTR) ||
+            (local->fop == GF_FOP_FSETXATTR)) {
+            DHT_STACK_UNWIND(setxattr, frame, local->op_ret, local->op_errno,
+                             NULL);
+        }
+        if ((local->fop == GF_FOP_REMOVEXATTR) ||
+            (local->fop == GF_FOP_FREMOVEXATTR)) {
+            DHT_STACK_UNWIND(removexattr, frame, local->op_ret, local->op_errno,
+                             NULL);
         }
+    }
 
-        return 0;
+    return 0;
 }
 
 /* Set the value[] of key into dict after convert from
    host byte order to network byte order
 */
-int32_t dht_dict_set_array (dict_t *dict, char *key, int32_t value[],
-                            int32_t size)
+int32_t
+dht_dict_set_array(dict_t *dict, char *key, int32_t value[], int32_t size)
 {
-        int         ret = -1;
-        int32_t   *ptr = NULL;
-        int32_t     vindex;
+    int ret = -1;
+    int32_t *ptr = NULL;
+    int32_t vindex;
 
-        if (value == NULL) {
-                return -EINVAL;
-        }
+    if (value == NULL) {
+        return -EINVAL;
+    }
 
-        ptr = GF_MALLOC(sizeof(int32_t) * size, gf_common_mt_char);
-        if (ptr == NULL) {
-                return -ENOMEM;
-        }
-        for (vindex = 0; vindex < size; vindex++) {
-                ptr[vindex] = hton32(value[vindex]);
-        }
-        ret = dict_set_bin(dict, key, ptr, sizeof(int32_t) * size);
-        if (ret)
-                GF_FREE (ptr);
-        return ret;
+    ptr = GF_MALLOC(sizeof(int32_t) * size, gf_common_mt_char);
+    if (ptr == NULL) {
+        return -ENOMEM;
+    }
+    for (vindex = 0; vindex < size; vindex++) {
+        ptr[vindex] = hton32(value[vindex]);
+    }
+    ret = dict_set_bin(dict, key, ptr, sizeof(int32_t) * size);
+    if (ret)
+        GF_FREE(ptr);
+    return ret;
 }
 
 int
-dht_common_mds_xattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                            int32_t op_ret, int32_t op_errno, dict_t *dict, dict_t *xdata)
+dht_common_mds_xattrop_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                           int32_t op_ret, int32_t op_errno, dict_t *dict,
+                           dict_t *xdata)
 {
-        dht_local_t *local = NULL;
-        call_frame_t  *prev  = cookie;
+    dht_local_t *local = NULL;
+    call_frame_t *prev = cookie;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (op_ret)
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->this->name);
+    if (op_ret)
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->this->name);
 
-         if (local->fop == GF_FOP_SETXATTR) {
-                DHT_STACK_UNWIND (setxattr, frame, 0, op_errno, local->xdata);
-         }
+    if (local->fop == GF_FOP_SETXATTR) {
+        DHT_STACK_UNWIND(setxattr, frame, 0, op_errno, local->xdata);
+    }
 
-         if (local->fop == GF_FOP_FSETXATTR) {
-                DHT_STACK_UNWIND (fsetxattr, frame, 0, op_errno, local->xdata);
-         }
+    if (local->fop == GF_FOP_FSETXATTR) {
+        DHT_STACK_UNWIND(fsetxattr, frame, 0, op_errno, local->xdata);
+    }
 
-         if (local->fop == GF_FOP_REMOVEXATTR) {
-                DHT_STACK_UNWIND (removexattr, frame, 0, op_errno, NULL);
-         }
+    if (local->fop == GF_FOP_REMOVEXATTR) {
+        DHT_STACK_UNWIND(removexattr, frame, 0, op_errno, NULL);
+    }
 
-         if (local->fop == GF_FOP_FREMOVEXATTR) {
-                DHT_STACK_UNWIND (fremovexattr, frame, 0, op_errno, NULL);
-         }
+    if (local->fop == GF_FOP_FREMOVEXATTR) {
+        DHT_STACK_UNWIND(fremovexattr, frame, 0, op_errno, NULL);
+    }
 
-        return 0;
+    return 0;
 }
 
 /* Code to wind a xattrop call to add 1 on current mds internal xattr
    value
 */
 int
-dht_setxattr_non_mds_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                          int op_ret, int op_errno, dict_t *xdata)
-{
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        int           ret           = 0;
-        dict_t        *xattrop      = NULL;
-        int32_t       addone[1]     = {1};
-        call_frame_t  *prev         = NULL;
-        dht_conf_t    *conf         = NULL;
-
-        local = frame->local;
-        prev = cookie;
-        conf = this->private;
-
-        LOCK (&frame->lock);
-        {
-             if (op_ret && !local->op_ret) {
-                        local->op_ret = op_ret;
-                        local->op_errno = op_errno;
-                         gf_msg_debug (this->name, op_errno,
-                                       "subvolume %s returned -1",
-                                       prev->this->name);
-             }
-        }
-        UNLOCK (&frame->lock);
-        this_call_cnt = dht_frame_return (frame);
-
-        if (is_last_call (this_call_cnt)) {
-                if (!local->op_ret) {
-                        xattrop = dict_new ();
-                        if (!xattrop) {
-                                gf_msg (this->name, GF_LOG_ERROR,
-                                        DHT_MSG_NO_MEMORY, 0,
-                                        "dictionary creation failed");
-                                ret = -1;
-                                goto out;
-                        }
-                        ret = dht_dict_set_array (xattrop,
-                                                  conf->mds_xattr_key,
-                                                  addone, 1);
-                        if (ret != 0) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "dictionary set array failed ");
-                                ret = -1;
-                                goto out;
-                        }
-                        if ((local->fop == GF_FOP_SETXATTR) ||
-                            (local->fop == GF_FOP_REMOVEXATTR)) {
-                                STACK_WIND (frame, dht_common_mds_xattrop_cbk,
-                                            local->mds_subvol,
-                                            local->mds_subvol->fops->xattrop,
-                                            &local->loc, GF_XATTROP_ADD_ARRAY,
-                                            xattrop, NULL);
-                        } else {
-                                STACK_WIND (frame, dht_common_mds_xattrop_cbk,
-                                            local->mds_subvol,
-                                            local->mds_subvol->fops->fxattrop,
-                                            local->fd, GF_XATTROP_ADD_ARRAY,
-                                            xattrop, NULL);
-                        }
-                } else  {
-                        if (local->fop == GF_FOP_SETXATTR) {
-                                DHT_STACK_UNWIND (setxattr, frame, 0, 0, local->xdata);
-                        }
-
-                        if (local->fop == GF_FOP_FSETXATTR) {
-                                DHT_STACK_UNWIND (fsetxattr, frame, 0, 0, local->xdata);
-                        }
-
-                        if (local->fop == GF_FOP_REMOVEXATTR) {
-                                DHT_STACK_UNWIND (removexattr, frame, 0, 0, NULL);
-                        }
-
-                        if (local->fop == GF_FOP_FREMOVEXATTR) {
-                                DHT_STACK_UNWIND (fremovexattr, frame, 0, 0, NULL);
-                        }
-                }
-        }
-out:
-        if (xattrop)
-                dict_unref (xattrop);
-        if (ret) {
-                if (local->fop == GF_FOP_SETXATTR) {
-                        DHT_STACK_UNWIND (setxattr, frame, 0, 0, local->xdata);
-                }
-
-                if (local->fop == GF_FOP_FSETXATTR) {
-                        DHT_STACK_UNWIND (fsetxattr, frame, 0, 0, local->xdata);
-                }
-
-                if (local->fop == GF_FOP_REMOVEXATTR) {
-                        DHT_STACK_UNWIND (removexattr, frame, 0, 0, NULL);
-                }
-
-                if (local->fop == GF_FOP_FREMOVEXATTR) {
-                        DHT_STACK_UNWIND (fremovexattr, frame, 0, 0, NULL);
-                }
-        }
-        return 0;
-}
-
-
-int
-dht_setxattr_mds_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                      int op_ret, int op_errno, dict_t *xdata)
+dht_setxattr_non_mds_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                         int op_ret, int op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        dht_conf_t   *conf  = NULL;
-        call_frame_t *prev = NULL;
-        xlator_t     *mds_subvol = NULL;
-        int i = 0;
-
-        local = frame->local;
-        prev = cookie;
-        conf = this->private;
-        mds_subvol = local->mds_subvol;
-
-        if (op_ret == -1) {
-                local->op_ret  = op_ret;
-                local->op_errno = op_errno;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->this->name);
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    int ret = 0;
+    dict_t *xattrop = NULL;
+    int32_t addone[1] = {1};
+    call_frame_t *prev = NULL;
+    dht_conf_t *conf = NULL;
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+
+    LOCK(&frame->lock);
+    {
+        if (op_ret && !local->op_ret) {
+            local->op_ret = op_ret;
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                         prev->this->name);
+        }
+    }
+    UNLOCK(&frame->lock);
+    this_call_cnt = dht_frame_return(frame);
+
+    if (is_last_call(this_call_cnt)) {
+        if (!local->op_ret) {
+            xattrop = dict_new();
+            if (!xattrop) {
+                gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
+                       "dictionary creation failed");
+                ret = -1;
                 goto out;
-        }
-
-        local->op_ret = 0;
-        local->call_cnt = conf->subvolume_cnt - 1;
-        local->xdata    = dict_ref (xdata);
-
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (mds_subvol && (mds_subvol == conf->subvolumes[i]))
-                        continue;
-                if (local->fop == GF_FOP_SETXATTR) {
-                        STACK_WIND (frame, dht_setxattr_non_mds_cbk,
-                                    conf->subvolumes[i],
-                                    conf->subvolumes[i]->fops->setxattr,
-                                    &local->loc, local->xattr,
-                                    local->flags, local->xattr_req);
-                }
+            }
+            ret = dht_dict_set_array(xattrop, conf->mds_xattr_key, addone, 1);
+            if (ret != 0) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                       "dictionary set array failed ");
+                ret = -1;
+                goto out;
+            }
+            if ((local->fop == GF_FOP_SETXATTR) ||
+                (local->fop == GF_FOP_REMOVEXATTR)) {
+                STACK_WIND(frame, dht_common_mds_xattrop_cbk, local->mds_subvol,
+                           local->mds_subvol->fops->xattrop, &local->loc,
+                           GF_XATTROP_ADD_ARRAY, xattrop, NULL);
+            } else {
+                STACK_WIND(frame, dht_common_mds_xattrop_cbk, local->mds_subvol,
+                           local->mds_subvol->fops->fxattrop, local->fd,
+                           GF_XATTROP_ADD_ARRAY, xattrop, NULL);
+            }
+        } else {
+            if (local->fop == GF_FOP_SETXATTR) {
+                DHT_STACK_UNWIND(setxattr, frame, 0, 0, local->xdata);
+            }
 
-                if (local->fop == GF_FOP_FSETXATTR) {
-                        STACK_WIND (frame, dht_setxattr_non_mds_cbk,
-                                    conf->subvolumes[i],
-                                    conf->subvolumes[i]->fops->fsetxattr,
-                                    local->fd, local->xattr,
-                                    local->flags, local->xattr_req);
-                }
+            if (local->fop == GF_FOP_FSETXATTR) {
+                DHT_STACK_UNWIND(fsetxattr, frame, 0, 0, local->xdata);
+            }
 
-                if (local->fop == GF_FOP_REMOVEXATTR) {
-                        STACK_WIND (frame, dht_setxattr_non_mds_cbk,
-                                    conf->subvolumes[i],
-                                    conf->subvolumes[i]->fops->removexattr,
-                                    &local->loc, local->key,
-                                    local->xattr_req);
-                }
+            if (local->fop == GF_FOP_REMOVEXATTR) {
+                DHT_STACK_UNWIND(removexattr, frame, 0, 0, NULL);
+            }
 
-                if (local->fop == GF_FOP_FREMOVEXATTR) {
-                        STACK_WIND (frame, dht_setxattr_non_mds_cbk,
-                                    conf->subvolumes[i],
-                                    conf->subvolumes[i]->fops->fremovexattr,
-                                    local->fd, local->key,
-                                    local->xattr_req);
-                }
+            if (local->fop == GF_FOP_FREMOVEXATTR) {
+                DHT_STACK_UNWIND(fremovexattr, frame, 0, 0, NULL);
+            }
         }
-
-        return 0;
+    }
 out:
+    if (xattrop)
+        dict_unref(xattrop);
+    if (ret) {
         if (local->fop == GF_FOP_SETXATTR) {
-                DHT_STACK_UNWIND (setxattr, frame, local->op_ret,
-                                  local->op_errno, xdata);
+            DHT_STACK_UNWIND(setxattr, frame, 0, 0, local->xdata);
         }
 
         if (local->fop == GF_FOP_FSETXATTR) {
-                DHT_STACK_UNWIND (fsetxattr, frame, local->op_ret,
-                                  local->op_errno, xdata);
+            DHT_STACK_UNWIND(fsetxattr, frame, 0, 0, local->xdata);
         }
 
         if (local->fop == GF_FOP_REMOVEXATTR) {
-                DHT_STACK_UNWIND (removexattr, frame, local->op_ret,
-                                  local->op_errno, NULL);
+            DHT_STACK_UNWIND(removexattr, frame, 0, 0, NULL);
         }
 
         if (local->fop == GF_FOP_FREMOVEXATTR) {
-                DHT_STACK_UNWIND (fremovexattr, frame, local->op_ret,
-                                  local->op_errno, NULL);
+            DHT_STACK_UNWIND(fremovexattr, frame, 0, 0, NULL);
         }
-
-        return 0;
+    }
+    return 0;
 }
 
 int
-dht_xattrop_mds_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int op_ret, int op_errno, dict_t *dict, dict_t *xdata)
+dht_setxattr_mds_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int op_ret, int op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        call_frame_t *prev = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    call_frame_t *prev = NULL;
+    xlator_t *mds_subvol = NULL;
+    int i = 0;
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+    mds_subvol = local->mds_subvol;
 
-        if (op_ret == -1) {
-                local->op_errno = op_errno;
-                local->op_ret   = op_ret;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->this->name);
-                goto out;
-        }
+    if (op_ret == -1) {
+        local->op_ret = op_ret;
+        local->op_errno = op_errno;
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->this->name);
+        goto out;
+    }
 
+    local->op_ret = 0;
+    local->call_cnt = conf->subvolume_cnt - 1;
+    local->xdata = dict_ref(xdata);
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (mds_subvol && (mds_subvol == conf->subvolumes[i]))
+            continue;
         if (local->fop == GF_FOP_SETXATTR) {
-                STACK_WIND (frame, dht_setxattr_mds_cbk,
-                            local->mds_subvol,
-                            local->mds_subvol->fops->setxattr,
-                            &local->loc, local->xattr,
-                            local->flags, local->xattr_req);
+            STACK_WIND(frame, dht_setxattr_non_mds_cbk, conf->subvolumes[i],
+                       conf->subvolumes[i]->fops->setxattr, &local->loc,
+                       local->xattr, local->flags, local->xattr_req);
         }
 
         if (local->fop == GF_FOP_FSETXATTR) {
-                STACK_WIND (frame, dht_setxattr_mds_cbk,
-                            local->mds_subvol,
-                            local->mds_subvol->fops->fsetxattr,
-                            local->fd, local->xattr,
-                            local->flags, local->xattr_req);
+            STACK_WIND(frame, dht_setxattr_non_mds_cbk, conf->subvolumes[i],
+                       conf->subvolumes[i]->fops->fsetxattr, local->fd,
+                       local->xattr, local->flags, local->xattr_req);
         }
 
         if (local->fop == GF_FOP_REMOVEXATTR) {
-                STACK_WIND (frame, dht_setxattr_mds_cbk,
-                            local->mds_subvol,
-                            local->mds_subvol->fops->removexattr,
-                            &local->loc, local->key,
-                            local->xattr_req);
+            STACK_WIND(frame, dht_setxattr_non_mds_cbk, conf->subvolumes[i],
+                       conf->subvolumes[i]->fops->removexattr, &local->loc,
+                       local->key, local->xattr_req);
         }
 
         if (local->fop == GF_FOP_FREMOVEXATTR) {
-                STACK_WIND (frame, dht_setxattr_mds_cbk,
-                            local->mds_subvol,
-                            local->mds_subvol->fops->fremovexattr,
-                            local->fd, local->key,
-                            local->xattr_req);
+            STACK_WIND(frame, dht_setxattr_non_mds_cbk, conf->subvolumes[i],
+                       conf->subvolumes[i]->fops->fremovexattr, local->fd,
+                       local->key, local->xattr_req);
         }
+    }
 
+    return 0;
+out:
+    if (local->fop == GF_FOP_SETXATTR) {
+        DHT_STACK_UNWIND(setxattr, frame, local->op_ret, local->op_errno,
+                         xdata);
+    }
 
-        return 0;
+    if (local->fop == GF_FOP_FSETXATTR) {
+        DHT_STACK_UNWIND(fsetxattr, frame, local->op_ret, local->op_errno,
+                         xdata);
+    }
+
+    if (local->fop == GF_FOP_REMOVEXATTR) {
+        DHT_STACK_UNWIND(removexattr, frame, local->op_ret, local->op_errno,
+                         NULL);
+    }
+
+    if (local->fop == GF_FOP_FREMOVEXATTR) {
+        DHT_STACK_UNWIND(fremovexattr, frame, local->op_ret, local->op_errno,
+                         NULL);
+    }
+
+    return 0;
+}
+
+int
+dht_xattrop_mds_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int op_ret, int op_errno, dict_t *dict, dict_t *xdata)
+{
+    dht_local_t *local = NULL;
+    call_frame_t *prev = NULL;
+
+    local = frame->local;
+    prev = cookie;
+
+    if (op_ret == -1) {
+        local->op_errno = op_errno;
+        local->op_ret = op_ret;
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->this->name);
+        goto out;
+    }
+
+    if (local->fop == GF_FOP_SETXATTR) {
+        STACK_WIND(frame, dht_setxattr_mds_cbk, local->mds_subvol,
+                   local->mds_subvol->fops->setxattr, &local->loc, local->xattr,
+                   local->flags, local->xattr_req);
+    }
+
+    if (local->fop == GF_FOP_FSETXATTR) {
+        STACK_WIND(frame, dht_setxattr_mds_cbk, local->mds_subvol,
+                   local->mds_subvol->fops->fsetxattr, local->fd, local->xattr,
+                   local->flags, local->xattr_req);
+    }
+
+    if (local->fop == GF_FOP_REMOVEXATTR) {
+        STACK_WIND(frame, dht_setxattr_mds_cbk, local->mds_subvol,
+                   local->mds_subvol->fops->removexattr, &local->loc,
+                   local->key, local->xattr_req);
+    }
+
+    if (local->fop == GF_FOP_FREMOVEXATTR) {
+        STACK_WIND(frame, dht_setxattr_mds_cbk, local->mds_subvol,
+                   local->mds_subvol->fops->fremovexattr, local->fd, local->key,
+                   local->xattr_req);
+    }
+
+    return 0;
 out:
-        if (local->fop == GF_FOP_SETXATTR) {
-                DHT_STACK_UNWIND (setxattr, frame, local->op_ret,
-                                  local->op_errno, xdata);
-        }
+    if (local->fop == GF_FOP_SETXATTR) {
+        DHT_STACK_UNWIND(setxattr, frame, local->op_ret, local->op_errno,
+                         xdata);
+    }
 
-        if (local->fop == GF_FOP_FSETXATTR) {
-                DHT_STACK_UNWIND (fsetxattr, frame, local->op_ret,
-                                  local->op_errno, xdata);
-        }
+    if (local->fop == GF_FOP_FSETXATTR) {
+        DHT_STACK_UNWIND(fsetxattr, frame, local->op_ret, local->op_errno,
+                         xdata);
+    }
 
-        if (local->fop == GF_FOP_REMOVEXATTR) {
-                DHT_STACK_UNWIND (removexattr, frame, local->op_ret,
-                                  local->op_errno, NULL);
-        }
+    if (local->fop == GF_FOP_REMOVEXATTR) {
+        DHT_STACK_UNWIND(removexattr, frame, local->op_ret, local->op_errno,
+                         NULL);
+    }
 
-        if (local->fop == GF_FOP_FREMOVEXATTR) {
-                DHT_STACK_UNWIND (fremovexattr, frame, local->op_ret,
-                                  local->op_errno, NULL);
-        }
+    if (local->fop == GF_FOP_FREMOVEXATTR) {
+        DHT_STACK_UNWIND(fremovexattr, frame, local->op_ret, local->op_errno,
+                         NULL);
+    }
 
-        return 0;
+    return 0;
 }
 
 static void
-fill_layout_info (dht_layout_t *layout, char *buf)
+fill_layout_info(dht_layout_t *layout, char *buf)
 {
-        int i = 0;
-        char tmp_buf[128] = {0,};
+    int i = 0;
+    char tmp_buf[128] = {
+        0,
+    };
 
-        for (i = 0; i < layout->cnt; i++) {
-                snprintf (tmp_buf, sizeof (tmp_buf), "(%s %u %u)",
-                          layout->list[i].xlator->name,
-                          layout->list[i].start,
-                          layout->list[i].stop);
-                if (i)
-                        strcat (buf, " ");
-                strcat (buf, tmp_buf);
-        }
+    for (i = 0; i < layout->cnt; i++) {
+        snprintf(tmp_buf, sizeof(tmp_buf), "(%s %u %u)",
+                 layout->list[i].xlator->name, layout->list[i].start,
+                 layout->list[i].stop);
+        if (i)
+            strcat(buf, " ");
+        strcat(buf, tmp_buf);
+    }
 }
 
 static void
-dht_fill_pathinfo_xattr (xlator_t *this, dht_local_t *local,
-                         char *xattr_buf, int32_t alloc_len,
-                         int flag, char *layout_buf)
-{
-        if (flag) {
-                if (local->xattr_val) {
-                        snprintf (xattr_buf, alloc_len,
-                          "((<"DHT_PATHINFO_HEADER"%s> %s) (%s-layout %s))",
-                          this->name, local->xattr_val, this->name,
-                          layout_buf);
-                } else {
-                        snprintf (xattr_buf, alloc_len, "(%s-layout %s)",
-                          this->name, layout_buf);
-                }
-        } else if (local->xattr_val) {
-                snprintf (xattr_buf, alloc_len,
-                          "(<"DHT_PATHINFO_HEADER"%s> %s)",
-                          this->name, local->xattr_val);
+dht_fill_pathinfo_xattr(xlator_t *this, dht_local_t *local, char *xattr_buf,
+                        int32_t alloc_len, int flag, char *layout_buf)
+{
+    if (flag) {
+        if (local->xattr_val) {
+            snprintf(xattr_buf, alloc_len,
+                     "((<" DHT_PATHINFO_HEADER "%s> %s) (%s-layout %s))",
+                     this->name, local->xattr_val, this->name, layout_buf);
         } else {
-                xattr_buf[0] = '\0';
+            snprintf(xattr_buf, alloc_len, "(%s-layout %s)", this->name,
+                     layout_buf);
         }
+    } else if (local->xattr_val) {
+        snprintf(xattr_buf, alloc_len, "(<" DHT_PATHINFO_HEADER "%s> %s)",
+                 this->name, local->xattr_val);
+    } else {
+        xattr_buf[0] = '\0';
+    }
 }
 
 int
-dht_vgetxattr_alloc_and_fill (dht_local_t *local, dict_t *xattr, xlator_t *this,
-                              int op_errno)
+dht_vgetxattr_alloc_and_fill(dht_local_t *local, dict_t *xattr, xlator_t *this,
+                             int op_errno)
 {
-        int      ret       = -1;
-        char    *value     = NULL;
+    int ret = -1;
+    char *value = NULL;
 
-        ret = dict_get_str (xattr, local->xsel, &value);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                        DHT_MSG_GET_XATTR_FAILED,
-                        "Subvolume %s returned -1", this->name);
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-                goto out;
-        }
+    ret = dict_get_str(xattr, local->xsel, &value);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, op_errno, DHT_MSG_GET_XATTR_FAILED,
+               "Subvolume %s returned -1", this->name);
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        goto out;
+    }
 
-        local->alloc_len += strlen(value);
+    local->alloc_len += strlen(value);
 
+    if (!local->xattr_val) {
+        local->alloc_len += (SLEN(DHT_PATHINFO_HEADER) + 10);
+        local->xattr_val = GF_MALLOC(local->alloc_len, gf_common_mt_char);
         if (!local->xattr_val) {
-                local->alloc_len += (SLEN (DHT_PATHINFO_HEADER) + 10);
-                local->xattr_val = GF_MALLOC (local->alloc_len,
-                                              gf_common_mt_char);
-                if (!local->xattr_val) {
-                        ret = -1;
-                        goto out;
-                }
-                local->xattr_val[0] = '\0';
-        }
-
-        int plen = strlen (local->xattr_val);
-        if (plen) {
-                /* extra byte(s) for \0 to be safe */
-                local->alloc_len += (plen + 2);
-                local->xattr_val = GF_REALLOC (local->xattr_val,
-                                               local->alloc_len);
-                if (!local->xattr_val) {
-                        ret = -1;
-                        goto out;
-                }
+            ret = -1;
+            goto out;
         }
+        local->xattr_val[0] = '\0';
+    }
 
-        (void) strcat (local->xattr_val, value);
-        (void) strcat (local->xattr_val, " ");
-        local->op_ret = 0;
+    int plen = strlen(local->xattr_val);
+    if (plen) {
+        /* extra byte(s) for \0 to be safe */
+        local->alloc_len += (plen + 2);
+        local->xattr_val = GF_REALLOC(local->xattr_val, local->alloc_len);
+        if (!local->xattr_val) {
+            ret = -1;
+            goto out;
+        }
+    }
 
-        ret = 0;
+    (void)strcat(local->xattr_val, value);
+    (void)strcat(local->xattr_val, " ");
+    local->op_ret = 0;
 
- out:
-        return ret;
+    ret = 0;
+
+out:
+    return ret;
 }
 
 int
-dht_vgetxattr_fill_and_set (dht_local_t *local, dict_t **dict, xlator_t *this,
-                            gf_boolean_t flag)
+dht_vgetxattr_fill_and_set(dht_local_t *local, dict_t **dict, xlator_t *this,
+                           gf_boolean_t flag)
 {
-        int   ret             = -1;
-        char *xattr_buf       = NULL;
-        char layout_buf[8192] = {0,};
-
-        if (flag)
-                fill_layout_info (local->layout, layout_buf);
+    int ret = -1;
+    char *xattr_buf = NULL;
+    char layout_buf[8192] = {
+        0,
+    };
 
-        *dict = dict_new ();
-        if (!*dict)
-                goto out;
-
-        local->xattr_val[strlen (local->xattr_val) - 1] = '\0';
+    if (flag)
+        fill_layout_info(local->layout, layout_buf);
 
-        /* we would need max this many bytes to create xattr string
-         * extra 40 bytes is just an estimated amount of additional
-         * space required as we include translator name and some
-         * spaces, brackets etc. when forming the pathinfo string.
-         *
-         * For node-uuid we just don't have all the pretty formatting,
-         * but since this is a generic routine for pathinfo & node-uuid
-         * we don't have conditional space allocation and try to be
-         * generic
-         */
-        local->alloc_len += (2 * strlen (this->name))
-                + strlen (layout_buf)
-                + 40;
-        xattr_buf = GF_MALLOC (local->alloc_len, gf_common_mt_char);
-        if (!xattr_buf)
-                goto out;
-
-        if (XATTR_IS_PATHINFO (local->xsel)) {
-                (void) dht_fill_pathinfo_xattr (this, local, xattr_buf,
-                                                local->alloc_len, flag,
-                                                layout_buf);
-        } else if ((XATTR_IS_NODE_UUID (local->xsel))
-                   || (XATTR_IS_NODE_UUID_LIST (local->xsel))) {
-                (void) snprintf (xattr_buf, local->alloc_len, "%s",
-                                 local->xattr_val);
-        } else {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_GET_XATTR_FAILED,
-                        "Unknown local->xsel (%s)", local->xsel);
-                GF_FREE (xattr_buf);
-                goto out;
-        }
-
-        ret = dict_set_dynstr (*dict, local->xsel, xattr_buf);
-        if (ret)
-                GF_FREE (xattr_buf);
-        GF_FREE (local->xattr_val);
+    *dict = dict_new();
+    if (!*dict)
+        goto out;
 
- out:
-        return ret;
-}
+    local->xattr_val[strlen(local->xattr_val) - 1] = '\0';
+
+    /* we would need max this many bytes to create xattr string
+     * extra 40 bytes is just an estimated amount of additional
+     * space required as we include translator name and some
+     * spaces, brackets etc. when forming the pathinfo string.
+     *
+     * For node-uuid we just don't have all the pretty formatting,
+     * but since this is a generic routine for pathinfo & node-uuid
+     * we don't have conditional space allocation and try to be
+     * generic
+     */
+    local->alloc_len += (2 * strlen(this->name)) + strlen(layout_buf) + 40;
+    xattr_buf = GF_MALLOC(local->alloc_len, gf_common_mt_char);
+    if (!xattr_buf)
+        goto out;
 
+    if (XATTR_IS_PATHINFO(local->xsel)) {
+        (void)dht_fill_pathinfo_xattr(this, local, xattr_buf, local->alloc_len,
+                                      flag, layout_buf);
+    } else if ((XATTR_IS_NODE_UUID(local->xsel)) ||
+               (XATTR_IS_NODE_UUID_LIST(local->xsel))) {
+        (void)snprintf(xattr_buf, local->alloc_len, "%s", local->xattr_val);
+    } else {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_GET_XATTR_FAILED,
+               "Unknown local->xsel (%s)", local->xsel);
+        GF_FREE(xattr_buf);
+        goto out;
+    }
 
-int
-dht_find_local_subvol_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int op_ret, int op_errno, dict_t *xattr,
-                           dict_t *xdata)
-{
-        dht_local_t  *local         = NULL;
-        dht_conf_t   *conf          = NULL;
-        xlator_t     *prev          = NULL;
-        int           this_call_cnt = 0;
-        int           ret           = 0;
-        char         *uuid_str      = NULL;
-        char         *uuid_list     = NULL;
-        char         *next_uuid_str = NULL;
-        char         *saveptr       = NULL;
-        uuid_t        node_uuid     = {0,};
-        char         *uuid_list_copy = NULL;
-        int           count          = 0;
-        int           i              = 0;
-        int           index          = 0;
-        int           found          = 0;
-        nodeuuid_info_t *tmp_ptr     = NULL;
-
-        VALIDATE_OR_GOTO (frame, out);
-        VALIDATE_OR_GOTO (frame->local, out);
+    ret = dict_set_dynstr(*dict, local->xsel, xattr_buf);
+    if (ret)
+        GF_FREE(xattr_buf);
+    GF_FREE(local->xattr_val);
 
-        local = frame->local;
-        prev = cookie;
-        conf = this->private;
-
-        VALIDATE_OR_GOTO (conf->defrag, out);
-
-        gf_msg_debug (this->name, 0, "subvol %s returned", prev->name);
-
-        LOCK (&frame->lock);
-        {
-                this_call_cnt = --local->call_cnt;
-                if (op_ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                DHT_MSG_GET_XATTR_FAILED,
-                                "getxattr err for dir");
-                        local->op_ret = -1;
-                        local->op_errno = op_errno;
-                        goto unlock;
-                }
+out:
+    return ret;
+}
+
+int
+dht_find_local_subvol_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int op_ret, int op_errno, dict_t *xattr,
+                          dict_t *xdata)
+{
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *prev = NULL;
+    int this_call_cnt = 0;
+    int ret = 0;
+    char *uuid_str = NULL;
+    char *uuid_list = NULL;
+    char *next_uuid_str = NULL;
+    char *saveptr = NULL;
+    uuid_t node_uuid = {
+        0,
+    };
+    char *uuid_list_copy = NULL;
+    int count = 0;
+    int i = 0;
+    int index = 0;
+    int found = 0;
+    nodeuuid_info_t *tmp_ptr = NULL;
+
+    VALIDATE_OR_GOTO(frame, out);
+    VALIDATE_OR_GOTO(frame->local, out);
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+
+    VALIDATE_OR_GOTO(conf->defrag, out);
+
+    gf_msg_debug(this->name, 0, "subvol %s returned", prev->name);
+
+    LOCK(&frame->lock);
+    {
+        this_call_cnt = --local->call_cnt;
+        if (op_ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, op_errno, DHT_MSG_GET_XATTR_FAILED,
+                   "getxattr err for dir");
+            local->op_ret = -1;
+            local->op_errno = op_errno;
+            goto unlock;
+        }
 
-                ret = dict_get_str (xattr, local->xsel, &uuid_list);
+        ret = dict_get_str(xattr, local->xsel, &uuid_list);
 
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_GET_FAILED,
-                                "Failed to get %s", local->xsel);
-                        local->op_ret = -1;
-                        local->op_errno = EINVAL;
-                        goto unlock;
-                }
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_GET_FAILED,
+                   "Failed to get %s", local->xsel);
+            local->op_ret = -1;
+            local->op_errno = EINVAL;
+            goto unlock;
+        }
 
-                /* As DHT will not know details of its child xlators
-                 * we need to parse this twice to get the count first
-                 * and allocate memory later.
-                 */
-                count = 0;
-                index = conf->local_subvols_cnt;
-
-                uuid_list_copy = gf_strdup (uuid_list);
-
-                for (uuid_str = strtok_r (uuid_list, " ", &saveptr);
-                     uuid_str;
-                     uuid_str = next_uuid_str) {
-
-                        next_uuid_str = strtok_r (NULL, " ", &saveptr);
-                        if (gf_uuid_parse (uuid_str, node_uuid)) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_UUID_PARSE_ERROR,
-                                        "Failed to parse uuid"
-                                        " for %s", prev->name);
-                                local->op_ret = -1;
-                                local->op_errno = EINVAL;
-                                goto unlock;
-                        }
-
-                        count++;
-                        if (gf_uuid_compare (node_uuid, conf->defrag->node_uuid)) {
-                                gf_msg_debug (this->name, 0, "subvol %s does not"
-                                              "belong to this node",
-                                              prev->name);
-                        } else {
-
-                                /* handle multiple bricks of the same replica
-                                 * on the same node */
-                                if (found)
-                                        continue;
-                                conf->local_subvols[(conf->local_subvols_cnt)++]
-                                                = prev;
-                                found = 1;
-                                gf_msg_debug (this->name, 0, "subvol %s belongs to"
-                                              " this node", prev->name);
-                        }
-                }
+        /* As DHT will not know details of its child xlators
+         * we need to parse this twice to get the count first
+         * and allocate memory later.
+         */
+        count = 0;
+        index = conf->local_subvols_cnt;
+
+        uuid_list_copy = gf_strdup(uuid_list);
+
+        for (uuid_str = strtok_r(uuid_list, " ", &saveptr); uuid_str;
+             uuid_str = next_uuid_str) {
+            next_uuid_str = strtok_r(NULL, " ", &saveptr);
+            if (gf_uuid_parse(uuid_str, node_uuid)) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_UUID_PARSE_ERROR,
+                       "Failed to parse uuid"
+                       " for %s",
+                       prev->name);
+                local->op_ret = -1;
+                local->op_errno = EINVAL;
+                goto unlock;
+            }
 
-                if (!found) {
-                        local->op_ret = 0;
-                        goto unlock;
-                }
+            count++;
+            if (gf_uuid_compare(node_uuid, conf->defrag->node_uuid)) {
+                gf_msg_debug(this->name, 0,
+                             "subvol %s does not"
+                             "belong to this node",
+                             prev->name);
+            } else {
+                /* handle multiple bricks of the same replica
+                 * on the same node */
+                if (found)
+                    continue;
+                conf->local_subvols[(conf->local_subvols_cnt)++] = prev;
+                found = 1;
+                gf_msg_debug(this->name, 0,
+                             "subvol %s belongs to"
+                             " this node",
+                             prev->name);
+            }
+        }
 
-                conf->local_nodeuuids[index].count = count;
-                conf->local_nodeuuids[index].elements
-                               = GF_CALLOC (count, sizeof (nodeuuid_info_t), 1);
+        if (!found) {
+            local->op_ret = 0;
+            goto unlock;
+        }
 
-                /* The node-uuids are guaranteed to be returned in the same
-                 * order as the bricks
-                 * A null node-uuid is returned for a brick that is down.
-                 */
+        conf->local_nodeuuids[index].count = count;
+        conf->local_nodeuuids[index].elements = GF_CALLOC(
+            count, sizeof(nodeuuid_info_t), 1);
 
-                saveptr = NULL;
-                i = 0;
+        /* The node-uuids are guaranteed to be returned in the same
+         * order as the bricks
+         * A null node-uuid is returned for a brick that is down.
+         */
 
-                for (uuid_str = strtok_r (uuid_list_copy, " ", &saveptr);
-                     uuid_str;
-                     uuid_str = next_uuid_str) {
+        saveptr = NULL;
+        i = 0;
 
-                        next_uuid_str = strtok_r (NULL, " ", &saveptr);
-                        tmp_ptr = &(conf->local_nodeuuids[index].elements[i]);
-                        gf_uuid_parse (uuid_str, tmp_ptr->uuid);
+        for (uuid_str = strtok_r(uuid_list_copy, " ", &saveptr); uuid_str;
+             uuid_str = next_uuid_str) {
+            next_uuid_str = strtok_r(NULL, " ", &saveptr);
+            tmp_ptr = &(conf->local_nodeuuids[index].elements[i]);
+            gf_uuid_parse(uuid_str, tmp_ptr->uuid);
 
-                        if (!gf_uuid_compare (tmp_ptr->uuid,
-                                              conf->defrag->node_uuid)) {
-                                tmp_ptr->info = REBAL_NODEUUID_MINE;
-                        }
-                        i++;
-                        tmp_ptr = NULL;
-                }
+            if (!gf_uuid_compare(tmp_ptr->uuid, conf->defrag->node_uuid)) {
+                tmp_ptr->info = REBAL_NODEUUID_MINE;
+            }
+            i++;
+            tmp_ptr = NULL;
         }
+    }
 
-        local->op_ret = 0;
- unlock:
-        UNLOCK (&frame->lock);
+    local->op_ret = 0;
+unlock:
+    UNLOCK(&frame->lock);
 
-        if (!is_last_call (this_call_cnt))
-                goto out;
+    if (!is_last_call(this_call_cnt))
+        goto out;
 
-        if (local->op_ret == -1) {
-                goto unwind;
-        }
+    if (local->op_ret == -1) {
+        goto unwind;
+    }
 
-        DHT_STACK_UNWIND (getxattr, frame, 0, 0, xattr, xdata);
-        goto out;
+    DHT_STACK_UNWIND(getxattr, frame, 0, 0, xattr, xdata);
+    goto out;
 
- unwind:
+unwind:
 
-        GF_FREE (conf->local_nodeuuids[index].elements);
-        conf->local_nodeuuids[index].elements = NULL;
+    GF_FREE(conf->local_nodeuuids[index].elements);
+    conf->local_nodeuuids[index].elements = NULL;
 
-        DHT_STACK_UNWIND (getxattr, frame, -1, local->op_errno, NULL, xdata);
- out:
-        GF_FREE (uuid_list_copy);
-        return 0;
+    DHT_STACK_UNWIND(getxattr, frame, -1, local->op_errno, NULL, xdata);
+out:
+    GF_FREE(uuid_list_copy);
+    return 0;
 }
 
 int
-dht_vgetxattr_dir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int op_ret, int op_errno, dict_t *xattr, dict_t *xdata)
+dht_vgetxattr_dir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int op_ret, int op_errno, dict_t *xattr, dict_t *xdata)
 {
-        int          ret           = 0;
-        dht_local_t *local         = NULL;
-        int          this_call_cnt = 0;
-        dict_t      *dict          = NULL;
+    int ret = 0;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    dict_t *dict = NULL;
 
-        VALIDATE_OR_GOTO (frame, out);
-        VALIDATE_OR_GOTO (frame->local, out);
+    VALIDATE_OR_GOTO(frame, out);
+    VALIDATE_OR_GOTO(frame->local, out);
 
-        local = frame->local;
+    local = frame->local;
 
-        LOCK (&frame->lock);
-        {
-                this_call_cnt = --local->call_cnt;
-                if (op_ret < 0) {
-                        if (op_errno != ENOTCONN) {
-                                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                        DHT_MSG_GET_XATTR_FAILED,
-                                        "getxattr err for dir");
-                                local->op_ret = -1;
-                                local->op_errno = op_errno;
-                        }
-
-                        goto unlock;
-                }
+    LOCK(&frame->lock);
+    {
+        this_call_cnt = --local->call_cnt;
+        if (op_ret < 0) {
+            if (op_errno != ENOTCONN) {
+                gf_msg(this->name, GF_LOG_ERROR, op_errno,
+                       DHT_MSG_GET_XATTR_FAILED, "getxattr err for dir");
+                local->op_ret = -1;
+                local->op_errno = op_errno;
+            }
 
-                ret = dht_vgetxattr_alloc_and_fill (local, xattr, this,
-                                                    op_errno);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "alloc or fill failure");
+            goto unlock;
         }
- unlock:
-        UNLOCK (&frame->lock);
 
-        if (!is_last_call (this_call_cnt))
-                goto out;
+        ret = dht_vgetxattr_alloc_and_fill(local, xattr, this, op_errno);
+        if (ret)
+            gf_msg(this->name, GF_LOG_ERROR, op_errno, DHT_MSG_DICT_SET_FAILED,
+                   "alloc or fill failure");
+    }
+unlock:
+    UNLOCK(&frame->lock);
 
-        /* -- last call: do patch ups -- */
+    if (!is_last_call(this_call_cnt))
+        goto out;
 
-        if (local->op_ret == -1) {
-                goto unwind;
-        }
+    /* -- last call: do patch ups -- */
 
-        ret = dht_vgetxattr_fill_and_set (local, &dict, this, _gf_true);
-        if (ret)
-                goto unwind;
+    if (local->op_ret == -1) {
+        goto unwind;
+    }
 
-        DHT_STACK_UNWIND (getxattr, frame, 0, 0, dict, xdata);
-        goto cleanup;
+    ret = dht_vgetxattr_fill_and_set(local, &dict, this, _gf_true);
+    if (ret)
+        goto unwind;
 
- unwind:
-        DHT_STACK_UNWIND (getxattr, frame, -1, local->op_errno, NULL, NULL);
- cleanup:
-        if (dict)
-                dict_unref (dict);
- out:
-        return 0;
+    DHT_STACK_UNWIND(getxattr, frame, 0, 0, dict, xdata);
+    goto cleanup;
+
+unwind:
+    DHT_STACK_UNWIND(getxattr, frame, -1, local->op_errno, NULL, NULL);
+cleanup:
+    if (dict)
+        dict_unref(dict);
+out:
+    return 0;
 }
 
 int
-dht_vgetxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                   int op_ret, int op_errno, dict_t *xattr, dict_t *xdata)
+dht_vgetxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                  int op_errno, dict_t *xattr, dict_t *xdata)
 {
-        dht_local_t  *local         = NULL;
-        int           ret           = 0;
-        dict_t       *dict          = NULL;
-        xlator_t     *prev          = NULL;
-        gf_boolean_t  flag          = _gf_true;
+    dht_local_t *local = NULL;
+    int ret = 0;
+    dict_t *dict = NULL;
+    xlator_t *prev = NULL;
+    gf_boolean_t flag = _gf_true;
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
 
-        if (op_ret < 0) {
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                        DHT_MSG_GET_XATTR_FAILED,
-                        "vgetxattr: Subvolume %s returned -1",
-                         prev->name);
-                goto unwind;
-        }
+    if (op_ret < 0) {
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        gf_msg(this->name, GF_LOG_ERROR, op_errno, DHT_MSG_GET_XATTR_FAILED,
+               "vgetxattr: Subvolume %s returned -1", prev->name);
+        goto unwind;
+    }
 
-        ret = dht_vgetxattr_alloc_and_fill (local, xattr, this,
-                                            op_errno);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_NO_MEMORY,
-                        "Allocation or fill failure");
-                goto unwind;
-        }
+    ret = dht_vgetxattr_alloc_and_fill(local, xattr, this, op_errno);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_NO_MEMORY,
+               "Allocation or fill failure");
+        goto unwind;
+    }
 
-        flag = (local->layout->cnt > 1) ? _gf_true : _gf_false;
+    flag = (local->layout->cnt > 1) ? _gf_true : _gf_false;
 
-        ret = dht_vgetxattr_fill_and_set (local, &dict, this, flag);
-        if (ret)
-                goto unwind;
+    ret = dht_vgetxattr_fill_and_set(local, &dict, this, flag);
+    if (ret)
+        goto unwind;
 
-        DHT_STACK_UNWIND (getxattr, frame, 0, 0, dict, xdata);
-        goto cleanup;
+    DHT_STACK_UNWIND(getxattr, frame, 0, 0, dict, xdata);
+    goto cleanup;
 
- unwind:
-        DHT_STACK_UNWIND (getxattr, frame, -1, local->op_errno,
-                          NULL, NULL);
- cleanup:
-        if (dict)
-                dict_unref (dict);
+unwind:
+    DHT_STACK_UNWIND(getxattr, frame, -1, local->op_errno, NULL, NULL);
+cleanup:
+    if (dict)
+        dict_unref(dict);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_linkinfo_getxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int op_ret, int op_errno, dict_t *xattr,
-                           dict_t *xdata)
+dht_linkinfo_getxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int op_ret, int op_errno, dict_t *xattr,
+                          dict_t *xdata)
 {
-        int   ret   = 0;
-        char *value = NULL;
+    int ret = 0;
+    char *value = NULL;
 
-        if (op_ret != -1) {
-                ret = dict_get_str (xattr, GF_XATTR_PATHINFO_KEY, &value);
-                if (!ret) {
-                        ret = dict_set_str (xattr, GF_XATTR_LINKINFO_KEY, value);
-                        if (!ret)
-                                gf_msg_trace (this->name, 0,
-                                              "failed to set linkinfo");
-                }
+    if (op_ret != -1) {
+        ret = dict_get_str(xattr, GF_XATTR_PATHINFO_KEY, &value);
+        if (!ret) {
+            ret = dict_set_str(xattr, GF_XATTR_LINKINFO_KEY, value);
+            if (!ret)
+                gf_msg_trace(this->name, 0, "failed to set linkinfo");
         }
+    }
 
-        DHT_STACK_UNWIND (getxattr, frame, op_ret, op_errno, xattr, xdata);
+    DHT_STACK_UNWIND(getxattr, frame, op_ret, op_errno, xattr, xdata);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_mds_getxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                      int op_ret, int op_errno, dict_t *xattr, dict_t *xdata)
+dht_mds_getxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int op_ret, int op_errno, dict_t *xattr, dict_t *xdata)
 {
-        dht_local_t     *local = NULL;
-        dht_conf_t      *conf = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
 
-        VALIDATE_OR_GOTO (frame, out);
-        VALIDATE_OR_GOTO (frame->local, out);
-        VALIDATE_OR_GOTO (this->private, out);
+    VALIDATE_OR_GOTO(frame, out);
+    VALIDATE_OR_GOTO(frame->local, out);
+    VALIDATE_OR_GOTO(this->private, out);
 
-        conf = this->private;
-        local = frame->local;
+    conf = this->private;
+    local = frame->local;
 
-        if (!xattr || (op_ret == -1)) {
-                local->op_ret = op_ret;
-                goto out;
-        }
-        if (dict_get (xattr, conf->xattr_name)) {
-                dict_del (xattr, conf->xattr_name);
-        }
-        local->op_ret = 0;
+    if (!xattr || (op_ret == -1)) {
+        local->op_ret = op_ret;
+        goto out;
+    }
+    if (dict_get(xattr, conf->xattr_name)) {
+        dict_del(xattr, conf->xattr_name);
+    }
+    local->op_ret = 0;
 
-        if (!local->xattr) {
-                local->xattr = dict_copy_with_ref (xattr, NULL);
-        }
+    if (!local->xattr) {
+        local->xattr = dict_copy_with_ref(xattr, NULL);
+    }
 
 out:
-        DHT_STACK_UNWIND (getxattr, frame, local->op_ret, op_errno,
-                          local->xattr, xdata);
-        return 0;
+    DHT_STACK_UNWIND(getxattr, frame, local->op_ret, op_errno, local->xattr,
+                     xdata);
+    return 0;
 }
 
-
 int
-dht_getxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int op_ret, int op_errno, dict_t *xattr, dict_t *xdata)
+dht_getxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, dict_t *xattr, dict_t *xdata)
 {
-        int             this_call_cnt = 0;
-        dht_local_t     *local = NULL;
-        dht_conf_t      *conf = NULL;
-
-        VALIDATE_OR_GOTO (frame, out);
-        VALIDATE_OR_GOTO (frame->local, out);
-        VALIDATE_OR_GOTO (this->private, out);
+    int this_call_cnt = 0;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
 
-        conf = this->private;
-        local = frame->local;
+    VALIDATE_OR_GOTO(frame, out);
+    VALIDATE_OR_GOTO(frame->local, out);
+    VALIDATE_OR_GOTO(this->private, out);
 
-        LOCK (&frame->lock);
-        {
-                if (!xattr || (op_ret == -1)) {
-                        local->op_ret = op_ret;
-                        goto unlock;
-                }
+    conf = this->private;
+    local = frame->local;
 
-                if (dict_get (xattr, conf->xattr_name)) {
-                        dict_del (xattr, conf->xattr_name);
-                }
+    LOCK(&frame->lock);
+    {
+        if (!xattr || (op_ret == -1)) {
+            local->op_ret = op_ret;
+            goto unlock;
+        }
 
-                if (dict_get (xattr,  conf->mds_xattr_key)) {
-                        dict_del (xattr, conf->mds_xattr_key);
-                }
+        if (dict_get(xattr, conf->xattr_name)) {
+            dict_del(xattr, conf->xattr_name);
+        }
 
-                /* filter out following two xattrs that need not
-                 * be visible on the mount point for geo-rep -
-                 * trusted.tier.fix.layout.complete and
-                 * trusted.tier.tier-dht.commithash
-                 */
+        if (dict_get(xattr, conf->mds_xattr_key)) {
+            dict_del(xattr, conf->mds_xattr_key);
+        }
 
-                if (dict_get (xattr, conf->commithash_xattr_name)) {
-                        dict_del (xattr, conf->commithash_xattr_name);
-                }
+        /* filter out following two xattrs that need not
+         * be visible on the mount point for geo-rep -
+         * trusted.tier.fix.layout.complete and
+         * trusted.tier.tier-dht.commithash
+         */
 
-                if (frame->root->pid >= 0 && dht_is_tier_xlator (this)) {
-                        dict_del(xattr, GF_XATTR_TIER_LAYOUT_FIXED_KEY);
-                }
+        if (dict_get(xattr, conf->commithash_xattr_name)) {
+            dict_del(xattr, conf->commithash_xattr_name);
+        }
 
-                if (frame->root->pid >= 0) {
-                        GF_REMOVE_INTERNAL_XATTR
-                                ("trusted.glusterfs.quota*", xattr);
-                        GF_REMOVE_INTERNAL_XATTR("trusted.pgfid*", xattr);
-                }
+        if (frame->root->pid >= 0 && dht_is_tier_xlator(this)) {
+            dict_del(xattr, GF_XATTR_TIER_LAYOUT_FIXED_KEY);
+        }
 
-                local->op_ret = 0;
+        if (frame->root->pid >= 0) {
+            GF_REMOVE_INTERNAL_XATTR("trusted.glusterfs.quota*", xattr);
+            GF_REMOVE_INTERNAL_XATTR("trusted.pgfid*", xattr);
+        }
 
-                if (!local->xattr) {
-                        local->xattr = dict_copy_with_ref (xattr, NULL);
-                } else {
-                        dht_aggregate_xattr (local->xattr, xattr);
-                }
+        local->op_ret = 0;
 
+        if (!local->xattr) {
+            local->xattr = dict_copy_with_ref(xattr, NULL);
+        } else {
+            dht_aggregate_xattr(local->xattr, xattr);
         }
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 out:
-        if (is_last_call (this_call_cnt)) {
-
-                /* If we have a valid xattr received from any one of the
-                 * subvolume, let's return it */
-                if (local->xattr) {
-                        local->op_ret = 0;
-                }
-
-                DHT_STACK_UNWIND (getxattr, frame, local->op_ret, op_errno,
-                                  local->xattr, NULL);
+    if (is_last_call(this_call_cnt)) {
+        /* If we have a valid xattr received from any one of the
+         * subvolume, let's return it */
+        if (local->xattr) {
+            local->op_ret = 0;
         }
-        return 0;
+
+        DHT_STACK_UNWIND(getxattr, frame, local->op_ret, op_errno, local->xattr,
+                         NULL);
+    }
+    return 0;
 }
 
 int32_t
-dht_getxattr_unwind (call_frame_t *frame,
-                     int op_ret, int op_errno, dict_t *dict, dict_t *xdata)
+dht_getxattr_unwind(call_frame_t *frame, int op_ret, int op_errno, dict_t *dict,
+                    dict_t *xdata)
 {
-        DHT_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict, xdata);
-        return 0;
+    DHT_STACK_UNWIND(getxattr, frame, op_ret, op_errno, dict, xdata);
+    return 0;
 }
 
-
 int
-dht_getxattr_get_real_filename_cbk (call_frame_t *frame, void *cookie,
-                                    xlator_t *this, int op_ret, int op_errno,
-                                    dict_t *xattr, dict_t *xdata)
+dht_getxattr_get_real_filename_cbk(call_frame_t *frame, void *cookie,
+                                   xlator_t *this, int op_ret, int op_errno,
+                                   dict_t *xattr, dict_t *xdata)
 {
-        int             this_call_cnt = 0;
-        dht_local_t     *local = NULL;
+    int this_call_cnt = 0;
+    dht_local_t *local = NULL;
 
+    local = frame->local;
 
-        local = frame->local;
+    LOCK(&frame->lock);
+    {
+        if (local->op_errno == ENODATA || local->op_errno == EOPNOTSUPP) {
+            /* Nothing to do here, we have already found
+             * a subvol which does not have the get_real_filename
+             * optimization. If condition is for simple logic.
+             */
+            goto unlock;
+        }
 
-        LOCK (&frame->lock);
-        {
-                if (local->op_errno == ENODATA ||
-                    local->op_errno == EOPNOTSUPP) {
-                        /* Nothing to do here, we have already found
-                         * a subvol which does not have the get_real_filename
-                         * optimization. If condition is for simple logic.
-                         */
-                        goto unlock;
-                }
+        if (op_ret == -1) {
+            if (op_errno == ENODATA || op_errno == EOPNOTSUPP) {
+                /* This subvol does not have the optimization.
+                 * Better let the user know we don't support it.
+                 * Remove previous results if any.
+                 */
 
-                if (op_ret == -1) {
-
-                        if (op_errno == ENODATA || op_errno == EOPNOTSUPP) {
-                                /* This subvol does not have the optimization.
-                                 * Better let the user know we don't support it.
-                                 * Remove previous results if any.
-                                 */
-
-                                if (local->xattr) {
-                                        dict_unref (local->xattr);
-                                        local->xattr = NULL;
-                                }
-
-                                if (local->xattr_req) {
-                                        dict_unref (local->xattr_req);
-                                        local->xattr_req = NULL;
-                                }
-
-                                local->op_ret = op_ret;
-                                local->op_errno = op_errno;
-                                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                                        DHT_MSG_UPGRADE_BRICKS, "At least "
-                                        "one of the bricks does not support "
-                                        "this operation. Please upgrade all "
-                                        "bricks.");
-                                goto unlock;
-                        }
-
-                        if (op_errno == ENOENT) {
-                                /* Do nothing, our defaults are set to this.
-                                 */
-                                goto unlock;
-                        }
-
-                        /* This is a place holder for every other error
-                         * case. I am not sure of how to interpret
-                         * ENOTCONN etc. As of now, choosing to ignore
-                         * down subvol and return a good result(if any)
-                         * from other subvol.
-                         */
-                        gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                                DHT_MSG_GET_XATTR_FAILED,
-                                "Failed to get real filename.");
-                        goto unlock;
+                if (local->xattr) {
+                    dict_unref(local->xattr);
+                    local->xattr = NULL;
+                }
 
+                if (local->xattr_req) {
+                    dict_unref(local->xattr_req);
+                    local->xattr_req = NULL;
                 }
 
+                local->op_ret = op_ret;
+                local->op_errno = op_errno;
+                gf_msg(this->name, GF_LOG_WARNING, op_errno,
+                       DHT_MSG_UPGRADE_BRICKS,
+                       "At least "
+                       "one of the bricks does not support "
+                       "this operation. Please upgrade all "
+                       "bricks.");
+                goto unlock;
+            }
 
-                /* This subvol has the required file.
-                 * There could be other subvols which have returned
-                 * success already, choosing to return the latest good
-                 * result.
+            if (op_errno == ENOENT) {
+                /* Do nothing, our defaults are set to this.
                  */
-                if (local->xattr)
-                        dict_unref (local->xattr);
-                local->xattr = dict_ref (xattr);
+                goto unlock;
+            }
 
-                if (local->xattr_req) {
-                        dict_unref (local->xattr_req);
-                        local->xattr_req = NULL;
-                }
-                if (xdata)
-                        local->xattr_req = dict_ref (xdata);
+            /* This is a place holder for every other error
+             * case. I am not sure of how to interpret
+             * ENOTCONN etc. As of now, choosing to ignore
+             * down subvol and return a good result(if any)
+             * from other subvol.
+             */
+            gf_msg(this->name, GF_LOG_WARNING, op_errno,
+                   DHT_MSG_GET_XATTR_FAILED, "Failed to get real filename.");
+            goto unlock;
+        }
+
+        /* This subvol has the required file.
+         * There could be other subvols which have returned
+         * success already, choosing to return the latest good
+         * result.
+         */
+        if (local->xattr)
+            dict_unref(local->xattr);
+        local->xattr = dict_ref(xattr);
 
-                local->op_ret = op_ret;
-                local->op_errno = 0;
-                gf_msg_debug (this->name, 0, "Found a matching "
-                              "file.");
+        if (local->xattr_req) {
+            dict_unref(local->xattr_req);
+            local->xattr_req = NULL;
         }
-unlock:
-        UNLOCK (&frame->lock);
+        if (xdata)
+            local->xattr_req = dict_ref(xdata);
 
+        local->op_ret = op_ret;
+        local->op_errno = 0;
+        gf_msg_debug(this->name, 0,
+                     "Found a matching "
+                     "file.");
+    }
+unlock:
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                DHT_STACK_UNWIND (getxattr, frame, local->op_ret,
-                                  local->op_errno, local->xattr,
-                                  local->xattr_req);
-        }
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        DHT_STACK_UNWIND(getxattr, frame, local->op_ret, local->op_errno,
+                         local->xattr, local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_getxattr_get_real_filename (call_frame_t *frame, xlator_t *this,
-                                loc_t *loc, const char *key, dict_t *xdata)
+dht_getxattr_get_real_filename(call_frame_t *frame, xlator_t *this, loc_t *loc,
+                               const char *key, dict_t *xdata)
 {
-        dht_local_t     *local = NULL;
-        int              i = 0;
-        dht_layout_t    *layout = NULL;
-        int              cnt = 0;
-        xlator_t        *subvol = NULL;
+    dht_local_t *local = NULL;
+    int i = 0;
+    dht_layout_t *layout = NULL;
+    int cnt = 0;
+    xlator_t *subvol = NULL;
 
+    local = frame->local;
+    layout = local->layout;
 
-        local = frame->local;
-        layout = local->layout;
+    cnt = local->call_cnt = layout->cnt;
 
-        cnt = local->call_cnt = layout->cnt;
+    local->op_ret = -1;
+    local->op_errno = ENOENT;
 
-        local->op_ret = -1;
-        local->op_errno = ENOENT;
-
-        for (i = 0; i < cnt; i++) {
-                subvol = layout->list[i].xlator;
-                STACK_WIND (frame, dht_getxattr_get_real_filename_cbk,
-                            subvol, subvol->fops->getxattr,
-                            loc, key, xdata);
-        }
+    for (i = 0; i < cnt; i++) {
+        subvol = layout->list[i].xlator;
+        STACK_WIND(frame, dht_getxattr_get_real_filename_cbk, subvol,
+                   subvol->fops->getxattr, loc, key, xdata);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_marker_populate_args (call_frame_t *frame, int type, int *gauge,
-                          xlator_t **subvols)
+dht_marker_populate_args(call_frame_t *frame, int type, int *gauge,
+                         xlator_t **subvols)
 {
-        dht_local_t *local = NULL;
-        int         i = 0;
-        dht_layout_t *layout = NULL;
+    dht_local_t *local = NULL;
+    int i = 0;
+    dht_layout_t *layout = NULL;
 
-        local  = frame->local;
-        layout = local->layout;
+    local = frame->local;
+    layout = local->layout;
 
-        for (i = 0; i < layout->cnt; i++)
-                subvols[i] = layout->list[i].xlator;
+    for (i = 0; i < layout->cnt; i++)
+        subvols[i] = layout->list[i].xlator;
 
-        return layout->cnt;
+    return layout->cnt;
 }
 
-
 int
-dht_is_debug_xattr_key (char **array, char *key)
+dht_is_debug_xattr_key(char **array, char *key)
 {
-        int     i = 0;
+    int i = 0;
 
-        for (i = 0; array[i]; i++) {
-                if (fnmatch (array[i], key, FNM_NOESCAPE) == 0)
-                        return i;
-        }
+    for (i = 0; array[i]; i++) {
+        if (fnmatch(array[i], key, FNM_NOESCAPE) == 0)
+            return i;
+    }
 
-        return -1;
+    return -1;
 }
 
-
 /* Note we already have frame->local initialised here*/
 
 int
-dht_handle_debug_getxattr (call_frame_t *frame, xlator_t *this,
-                           loc_t *loc, const char *key)
+dht_handle_debug_getxattr(call_frame_t *frame, xlator_t *this, loc_t *loc,
+                          const char *key)
 {
-        dht_local_t  *local         = NULL;
-        int           ret           = -1;
-        int           op_errno      = ENODATA;
-        char         *value         = NULL;
-        loc_t         file_loc      = {0};
-        const char    *name         = NULL;
-
-        local = frame->local;
-        if (!key) {
-                op_errno = EINVAL;
-                goto out;
-        }
+    dht_local_t *local = NULL;
+    int ret = -1;
+    int op_errno = ENODATA;
+    char *value = NULL;
+    loc_t file_loc = {0};
+    const char *name = NULL;
 
-        if (dht_is_debug_xattr_key (dht_dbg_vxattrs, (char *)key) == -1) {
-                goto out;
-        }
+    local = frame->local;
+    if (!key) {
+        op_errno = EINVAL;
+        goto out;
+    }
 
-        local->xattr = dict_new ();
-        if (!local->xattr) {
-                op_errno = ENOMEM;
-                goto out;
-        }
+    if (dht_is_debug_xattr_key(dht_dbg_vxattrs, (char *)key) == -1) {
+        goto out;
+    }
 
-        if (strncmp (key, DHT_DBG_HASHED_SUBVOL_KEY,
-                     SLEN (DHT_DBG_HASHED_SUBVOL_KEY)) == 0) {
+    local->xattr = dict_new();
+    if (!local->xattr) {
+        op_errno = ENOMEM;
+        goto out;
+    }
 
-                name = key + strlen(DHT_DBG_HASHED_SUBVOL_KEY);
-                if (strlen(name) == 0) {
-                        op_errno = EINVAL;
-                        goto out;
-                }
+    if (strncmp(key, DHT_DBG_HASHED_SUBVOL_KEY,
+                SLEN(DHT_DBG_HASHED_SUBVOL_KEY)) == 0) {
+        name = key + strlen(DHT_DBG_HASHED_SUBVOL_KEY);
+        if (strlen(name) == 0) {
+            op_errno = EINVAL;
+            goto out;
+        }
 
-                ret = dht_build_child_loc (this, &file_loc, loc, (char *)name);
-                if (ret) {
-                        op_errno = ENOMEM;
-                        goto out;
-                }
+        ret = dht_build_child_loc(this, &file_loc, loc, (char *)name);
+        if (ret) {
+            op_errno = ENOMEM;
+            goto out;
+        }
 
-                local->hashed_subvol = dht_subvol_get_hashed (this, &file_loc);
-                if (local->hashed_subvol == NULL) {
-                        op_errno = ENODATA;
-                        goto out;
-                }
+        local->hashed_subvol = dht_subvol_get_hashed(this, &file_loc);
+        if (local->hashed_subvol == NULL) {
+            op_errno = ENODATA;
+            goto out;
+        }
 
-                value = gf_strdup (local->hashed_subvol->name);
-                if (!value) {
-                        op_errno = ENOMEM;
-                        goto out;
-                }
+        value = gf_strdup(local->hashed_subvol->name);
+        if (!value) {
+            op_errno = ENOMEM;
+            goto out;
+        }
 
-                ret = dict_set_dynstr (local->xattr,  (char *)key, value);
-                if (ret < 0) {
-                        op_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
-                ret = 0;
-                goto out;
+        ret = dict_set_dynstr(local->xattr, (char *)key, value);
+        if (ret < 0) {
+            op_errno = -ret;
+            ret = -1;
+            goto out;
         }
+        ret = 0;
+        goto out;
+    }
 
 out:
-	loc_wipe (&file_loc);
-        DHT_STACK_UNWIND (getxattr, frame, ret, op_errno, local->xattr, NULL);
-        return 0;
+    loc_wipe(&file_loc);
+    DHT_STACK_UNWIND(getxattr, frame, ret, op_errno, local->xattr, NULL);
+    return 0;
 }
 
-
 int
-dht_getxattr (call_frame_t *frame, xlator_t *this,
-              loc_t *loc, const char *key, dict_t *xdata)
-#define DHT_IS_DIR(layout)  (layout->cnt > 1)
-{
-
-        xlator_t     *subvol        = NULL;
-        xlator_t     *hashed_subvol = NULL;
-        xlator_t     *mds_subvol    = NULL;
-        xlator_t     *cached_subvol = NULL;
-        dht_conf_t   *conf          = NULL;
-        dht_local_t  *local         = NULL;
-        dht_layout_t *layout        = NULL;
-        int           op_errno      = -1;
-        int           i             = 0;
-        int           cnt           = 0;
-        char         *node_uuid_key = NULL;
-        int           ret           = -1;
-
-        GF_CHECK_XATTR_KEY_AND_GOTO (key, IO_THREADS_QUEUE_SIZE_KEY,
-                                     op_errno, err);
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf   = this->private;
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_GETXATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-
-                goto err;
-        }
-
-        layout = local->layout;
-        if (!layout) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LAYOUT_NULL,
-                        "Layout is NULL");
-                op_errno = ENOENT;
-                goto err;
+dht_getxattr(call_frame_t *frame, xlator_t *this, loc_t *loc, const char *key,
+             dict_t *xdata)
+#define DHT_IS_DIR(layout) (layout->cnt > 1)
+{
+    xlator_t *subvol = NULL;
+    xlator_t *hashed_subvol = NULL;
+    xlator_t *mds_subvol = NULL;
+    xlator_t *cached_subvol = NULL;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    int op_errno = -1;
+    int i = 0;
+    int cnt = 0;
+    char *node_uuid_key = NULL;
+    int ret = -1;
+
+    GF_CHECK_XATTR_KEY_AND_GOTO(key, IO_THREADS_QUEUE_SIZE_KEY, op_errno, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_GETXATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LAYOUT_NULL,
+               "Layout is NULL");
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    /* skip over code which is irrelevant without a valid key */
+    if (!key)
+        goto no_key;
+
+    local->key = gf_strdup(key);
+    if (!local->key) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    if (strncmp(key, conf->mds_xattr_key, strlen(key)) == 0) {
+        op_errno = ENOTSUP;
+        goto err;
+    }
+
+    /* skip over code which is irrelevant if !DHT_IS_DIR(layout) */
+    if (!DHT_IS_DIR(layout))
+        goto no_dht_is_dir;
+
+    if ((strncmp(key, GF_XATTR_GET_REAL_FILENAME_KEY,
+                 SLEN(GF_XATTR_GET_REAL_FILENAME_KEY)) == 0) &&
+        DHT_IS_DIR(layout)) {
+        dht_getxattr_get_real_filename(frame, this, loc, key, xdata);
+        return 0;
+    }
+
+    if (!strcmp(key, GF_REBAL_FIND_LOCAL_SUBVOL)) {
+        ret = gf_asprintf(&node_uuid_key, "%s", GF_XATTR_LIST_NODE_UUIDS_KEY);
+        if (ret == -1 || !node_uuid_key) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_NO_MEMORY,
+                   "Failed to copy node uuid key");
+            op_errno = ENOMEM;
+            goto err;
+        }
+        (void)snprintf(local->xsel, sizeof(local->xsel), "%s", node_uuid_key);
+        cnt = local->call_cnt = conf->subvolume_cnt;
+        for (i = 0; i < cnt; i++) {
+            STACK_WIND_COOKIE(frame, dht_find_local_subvol_cbk,
+                              conf->subvolumes[i], conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->getxattr, loc,
+                              node_uuid_key, xdata);
         }
+        if (node_uuid_key)
+            GF_FREE(node_uuid_key);
+        return 0;
+    }
 
-        /* skip over code which is irrelevant without a valid key */
-        if (!key)
-                goto no_key;
-
-        local->key = gf_strdup (key);
-        if (!local->key) {
-                op_errno = ENOMEM;
-                goto err;
+    if (!strcmp(key, GF_REBAL_OLD_FIND_LOCAL_SUBVOL)) {
+        ret = gf_asprintf(&node_uuid_key, "%s", GF_XATTR_NODE_UUID_KEY);
+        if (ret == -1 || !node_uuid_key) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_NO_MEMORY,
+                   "Failed to copy node uuid key");
+            op_errno = ENOMEM;
+            goto err;
         }
-
-        if (strncmp (key, conf->mds_xattr_key, strlen(key)) == 0) {
-                op_errno = ENOTSUP;
-                goto err;
+        (void)snprintf(local->xsel, sizeof(local->xsel), "%s", node_uuid_key);
+        cnt = local->call_cnt = conf->subvolume_cnt;
+        for (i = 0; i < cnt; i++) {
+            STACK_WIND_COOKIE(frame, dht_find_local_subvol_cbk,
+                              conf->subvolumes[i], conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->getxattr, loc,
+                              node_uuid_key, xdata);
+        }
+        if (node_uuid_key)
+            GF_FREE(node_uuid_key);
+        return 0;
+    }
+
+    /* for file use cached subvolume (obviously!): see if {}
+     * below
+     * for directory:
+     *  wind to all subvolumes and exclude subvolumes which
+     *  return ENOTCONN (in callback)
+     *
+     * NOTE: Don't trust inode here, as that may not be valid
+     *       (until inode_link() happens)
+     */
+
+    if (XATTR_IS_PATHINFO(key) || (strcmp(key, GF_XATTR_NODE_UUID_KEY) == 0) ||
+        (strcmp(key, GF_XATTR_LIST_NODE_UUIDS_KEY) == 0)) {
+        (void)snprintf(local->xsel, sizeof(local->xsel), "%s", key);
+        cnt = local->call_cnt = layout->cnt;
+        for (i = 0; i < cnt; i++) {
+            subvol = layout->list[i].xlator;
+            STACK_WIND(frame, dht_vgetxattr_dir_cbk, subvol,
+                       subvol->fops->getxattr, loc, key, xdata);
         }
+        return 0;
+    }
 
-        /* skip over code which is irrelevant if !DHT_IS_DIR(layout) */
-        if (!DHT_IS_DIR(layout))
-                goto no_dht_is_dir;
-
-        if ((strncmp (key, GF_XATTR_GET_REAL_FILENAME_KEY,
-                      SLEN (GF_XATTR_GET_REAL_FILENAME_KEY)) == 0)
-            && DHT_IS_DIR(layout)) {
-                dht_getxattr_get_real_filename (frame, this, loc, key, xdata);
-                return 0;
-        }
+no_dht_is_dir:
+    /* node-uuid or pathinfo for files */
+    if (XATTR_IS_PATHINFO(key) || (strcmp(key, GF_XATTR_NODE_UUID_KEY) == 0)) {
+        cached_subvol = local->cached_subvol;
+        (void)snprintf(local->xsel, sizeof(local->xsel), "%s", key);
+        local->call_cnt = 1;
+        STACK_WIND_COOKIE(frame, dht_vgetxattr_cbk, cached_subvol,
+                          cached_subvol, cached_subvol->fops->getxattr, loc,
+                          key, xdata);
 
-        if (!strcmp (key, GF_REBAL_FIND_LOCAL_SUBVOL)) {
-                ret = gf_asprintf (&node_uuid_key, "%s",
-                                   GF_XATTR_LIST_NODE_UUIDS_KEY);
-                if (ret == -1 || !node_uuid_key) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_NO_MEMORY,
-                                "Failed to copy node uuid key");
-                        op_errno = ENOMEM;
-                        goto err;
-                }
-                (void) snprintf (local->xsel, sizeof (local->xsel), "%s",
-                                 node_uuid_key);
-                cnt = local->call_cnt = conf->subvolume_cnt;
-                for (i = 0; i < cnt; i++) {
-                        STACK_WIND_COOKIE (frame, dht_find_local_subvol_cbk,
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->getxattr,
-                                           loc, node_uuid_key, xdata);
-                }
-                if (node_uuid_key)
-                        GF_FREE (node_uuid_key);
-                return 0;
-        }
+        return 0;
+    }
 
-        if (!strcmp (key, GF_REBAL_OLD_FIND_LOCAL_SUBVOL)) {
-                ret = gf_asprintf (&node_uuid_key, "%s",
-                                   GF_XATTR_NODE_UUID_KEY);
-                if (ret == -1 || !node_uuid_key) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_NO_MEMORY,
-                                "Failed to copy node uuid key");
-                        op_errno = ENOMEM;
-                        goto err;
-                }
-                (void) snprintf (local->xsel, sizeof (local->xsel), "%s",
-                                 node_uuid_key);
-                cnt = local->call_cnt = conf->subvolume_cnt;
-                for (i = 0; i < cnt; i++) {
-                        STACK_WIND_COOKIE (frame, dht_find_local_subvol_cbk,
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->getxattr,
-                                           loc, node_uuid_key, xdata);
-                }
-                if (node_uuid_key)
-                        GF_FREE (node_uuid_key);
-                return 0;
+    if (strcmp(key, GF_XATTR_LINKINFO_KEY) == 0) {
+        hashed_subvol = dht_subvol_get_hashed(this, loc);
+        if (!hashed_subvol) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "Failed to get hashed subvol for %s", loc->path);
+            op_errno = EINVAL;
+            goto err;
         }
 
-        /* for file use cached subvolume (obviously!): see if {}
-         * below
-         * for directory:
-         *  wind to all subvolumes and exclude subvolumes which
-         *  return ENOTCONN (in callback)
-         *
-         * NOTE: Don't trust inode here, as that may not be valid
-         *       (until inode_link() happens)
-         */
-
-        if (XATTR_IS_PATHINFO (key)
-            || (strcmp (key, GF_XATTR_NODE_UUID_KEY) == 0)
-            || (strcmp (key, GF_XATTR_LIST_NODE_UUIDS_KEY) == 0)) {
-                (void) snprintf (local->xsel, sizeof (local->xsel), "%s", key);
-                cnt = local->call_cnt = layout->cnt;
-                for (i = 0; i < cnt; i++) {
-                        subvol = layout->list[i].xlator;
-                        STACK_WIND (frame, dht_vgetxattr_dir_cbk,
-                                    subvol, subvol->fops->getxattr,
-                                    loc, key, xdata);
-                }
-                return 0;
+        cached_subvol = dht_subvol_get_cached(this, loc->inode);
+        if (!cached_subvol) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_CACHED_SUBVOL_GET_FAILED,
+                   "Failed to get cached subvol for %s", loc->path);
+            op_errno = EINVAL;
+            goto err;
         }
 
-no_dht_is_dir:
-        /* node-uuid or pathinfo for files */
-        if (XATTR_IS_PATHINFO (key)
-            || (strcmp (key, GF_XATTR_NODE_UUID_KEY) == 0)) {
-                cached_subvol = local->cached_subvol;
-                (void) snprintf (local->xsel, sizeof (local->xsel), "%s", key);
-                local->call_cnt = 1;
-                STACK_WIND_COOKIE (frame, dht_vgetxattr_cbk, cached_subvol,
-                                   cached_subvol, cached_subvol->fops->getxattr,
-                                   loc, key, xdata);
-
-                return 0;
+        if (hashed_subvol == cached_subvol) {
+            op_errno = ENODATA;
+            goto err;
         }
 
-        if (strcmp (key, GF_XATTR_LINKINFO_KEY) == 0) {
-
-                hashed_subvol = dht_subvol_get_hashed (this, loc);
-                if (!hashed_subvol) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "Failed to get hashed subvol for %s",
-                                loc->path);
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                cached_subvol = dht_subvol_get_cached (this, loc->inode);
-                if (!cached_subvol) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_CACHED_SUBVOL_GET_FAILED,
-                                "Failed to get cached subvol for %s",
-                                loc->path);
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                if (hashed_subvol == cached_subvol) {
-                        op_errno = ENODATA;
-                        goto err;
-                }
-
-                STACK_WIND (frame, dht_linkinfo_getxattr_cbk, hashed_subvol,
-                            hashed_subvol->fops->getxattr, loc,
-                            GF_XATTR_PATHINFO_KEY, xdata);
-                return 0;
-        }
+        STACK_WIND(frame, dht_linkinfo_getxattr_cbk, hashed_subvol,
+                   hashed_subvol->fops->getxattr, loc, GF_XATTR_PATHINFO_KEY,
+                   xdata);
+        return 0;
+    }
 
-	if (dht_is_debug_xattr_key (dht_dbg_vxattrs, (char *)key) >= 0) {
-                dht_handle_debug_getxattr (frame, this, loc, key);
-                return 0;
-        }
+    if (dht_is_debug_xattr_key(dht_dbg_vxattrs, (char *)key) >= 0) {
+        dht_handle_debug_getxattr(frame, this, loc, key);
+        return 0;
+    }
 
 no_key:
-        if (cluster_handle_marker_getxattr (frame, loc, key, conf->vol_uuid,
-                                            dht_getxattr_unwind,
-                                            dht_marker_populate_args) == 0)
-                return 0;
+    if (cluster_handle_marker_getxattr(frame, loc, key, conf->vol_uuid,
+                                       dht_getxattr_unwind,
+                                       dht_marker_populate_args) == 0)
+        return 0;
 
-        if (DHT_IS_DIR(layout)) {
-                local->call_cnt = conf->subvolume_cnt;
-                cnt = conf->subvolume_cnt;
-                ret = dht_inode_ctx_mdsvol_get (loc->inode, this, &mds_subvol);
-                if (!mds_subvol) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "Cannot determine MDS, fetching xattr %s randomly"
-                                " from a subvol for path %s ", key, loc->path);
-                } else {
-                        /* TODO need to handle it, As of now we are
-                           choosing availability instead of chossing
-                           consistencty, in case of mds_subvol is
-                           down winding a getxattr call on other subvol
-                           and return xattr
-                        */
-                        local->mds_subvol = mds_subvol;
-                        for (i = 0; i < cnt; i++) {
-                                if (conf->subvolumes[i] == mds_subvol) {
-                                        if (!conf->subvolume_status[i]) {
-                                                gf_msg (this->name,
-                                                        GF_LOG_INFO, 0,
-                                                        DHT_MSG_HASHED_SUBVOL_DOWN,
-                                                        "MDS %s is down for path"
-                                                        " path %s so fetching xattr "
-                                                        "%s randomly from a subvol ",
-                                                        local->mds_subvol->name,
-                                                        loc->path, key);
-                                                ret = 1;
-                                        }
-                                }
-                        }
+    if (DHT_IS_DIR(layout)) {
+        local->call_cnt = conf->subvolume_cnt;
+        cnt = conf->subvolume_cnt;
+        ret = dht_inode_ctx_mdsvol_get(loc->inode, this, &mds_subvol);
+        if (!mds_subvol) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "Cannot determine MDS, fetching xattr %s randomly"
+                   " from a subvol for path %s ",
+                   key, loc->path);
+        } else {
+            /* TODO need to handle it, As of now we are
+               choosing availability instead of chossing
+               consistencty, in case of mds_subvol is
+               down winding a getxattr call on other subvol
+               and return xattr
+            */
+            local->mds_subvol = mds_subvol;
+            for (i = 0; i < cnt; i++) {
+                if (conf->subvolumes[i] == mds_subvol) {
+                    if (!conf->subvolume_status[i]) {
+                        gf_msg(this->name, GF_LOG_INFO, 0,
+                               DHT_MSG_HASHED_SUBVOL_DOWN,
+                               "MDS %s is down for path"
+                               " path %s so fetching xattr "
+                               "%s randomly from a subvol ",
+                               local->mds_subvol->name, loc->path, key);
+                        ret = 1;
+                    }
                 }
+            }
+        }
 
-                if (!ret && key && local->mds_subvol && dht_match_xattr (key)) {
-                        STACK_WIND (frame, dht_mds_getxattr_cbk,
-                                    local->mds_subvol,
-                                    local->mds_subvol->fops->getxattr,
-                                    loc, key, xdata);
+        if (!ret && key && local->mds_subvol && dht_match_xattr(key)) {
+            STACK_WIND(frame, dht_mds_getxattr_cbk, local->mds_subvol,
+                       local->mds_subvol->fops->getxattr, loc, key, xdata);
 
-                        return 0;
-                }
-        } else {
-                cnt = local->call_cnt  = 1;
+            return 0;
         }
+    } else {
+        cnt = local->call_cnt = 1;
+    }
 
-        for (i = 0; i < cnt; i++) {
-                subvol = layout->list[i].xlator;
-                STACK_WIND (frame, dht_getxattr_cbk,
-                            subvol, subvol->fops->getxattr,
-                            loc, key, xdata);
-        }
-        return 0;
+    for (i = 0; i < cnt; i++) {
+        subvol = layout->list[i].xlator;
+        STACK_WIND(frame, dht_getxattr_cbk, subvol, subvol->fops->getxattr, loc,
+                   key, xdata);
+    }
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (getxattr, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(getxattr, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 #undef DHT_IS_DIR
 
 int
-dht_fgetxattr (call_frame_t *frame, xlator_t *this,
-               fd_t *fd, const char *key, dict_t *xdata)
-{
-        xlator_t     *subvol        = NULL;
-        dht_local_t  *local         = NULL;
-        dht_layout_t *layout        = NULL;
-        int           op_errno      = -1;
-        int           i             = 0;
-        int           cnt           = 0;
-        xlator_t      *mds_subvol = NULL;
-        int           ret           = -1;
-        dht_conf_t    *conf         = NULL;
-        char           gfid[GF_UUID_BUF_SIZE] = {0};
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-        VALIDATE_OR_GOTO (fd->inode, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FGETXATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-
-                goto err;
+dht_fgetxattr(call_frame_t *frame, xlator_t *this, fd_t *fd, const char *key,
+              dict_t *xdata)
+{
+    xlator_t *subvol = NULL;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    int op_errno = -1;
+    int i = 0;
+    int cnt = 0;
+    xlator_t *mds_subvol = NULL;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+    VALIDATE_OR_GOTO(fd->inode, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FGETXATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LAYOUT_NULL,
+               "Layout is NULL");
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    if (key) {
+        local->key = gf_strdup(key);
+        if (!local->key) {
+            op_errno = ENOMEM;
+            goto err;
         }
+    }
 
-        layout = local->layout;
-        if (!layout) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LAYOUT_NULL,
-                        "Layout is NULL");
-                op_errno = ENOENT;
-                goto err;
-        }
+    if (fd->inode)
+        gf_uuid_unparse(fd->inode->gfid, gfid);
 
-        if (key) {
-                local->key = gf_strdup (key);
-                if (!local->key) {
-                        op_errno = ENOMEM;
-                        goto err;
+    if ((fd->inode->ia_type == IA_IFDIR) && key &&
+        (strncmp(key, GF_XATTR_LOCKINFO_KEY, SLEN(GF_XATTR_LOCKINFO_KEY)) !=
+         0)) {
+        local->call_cnt = conf->subvolume_cnt;
+        cnt = conf->subvolume_cnt;
+        ret = dht_inode_ctx_mdsvol_get(fd->inode, this, &mds_subvol);
+
+        if (!mds_subvol) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "cannot determine MDS, fetching xattr %s "
+                   " randomly from a subvol for gfid %s ",
+                   key, gfid);
+        } else {
+            /* TODO need to handle it, As of now we are
+               choosing availability instead of chossing
+               consistencty, in case of hashed_subvol is
+               down winding a getxattr call on other subvol
+               and return xattr
+            */
+            local->mds_subvol = mds_subvol;
+            for (i = 0; i < cnt; i++) {
+                if (conf->subvolumes[i] == mds_subvol) {
+                    if (!conf->subvolume_status[i]) {
+                        gf_msg(this->name, GF_LOG_WARNING, 0,
+                               DHT_MSG_HASHED_SUBVOL_DOWN,
+                               "MDS subvolume %s is down"
+                               " for gfid %s so fetching xattr "
+                               " %s randomly from a subvol ",
+                               local->mds_subvol->name, gfid, key);
+                        ret = 1;
+                    }
                 }
+            }
         }
 
-        if (fd->inode)
-                gf_uuid_unparse(fd->inode->gfid, gfid);
-
-        if ((fd->inode->ia_type == IA_IFDIR)
-            && key
-            && (strncmp (key, GF_XATTR_LOCKINFO_KEY,
-                         SLEN (GF_XATTR_LOCKINFO_KEY)) != 0)) {
-                local->call_cnt = conf->subvolume_cnt;
-                cnt             = conf->subvolume_cnt;
-                ret = dht_inode_ctx_mdsvol_get (fd->inode, this, &mds_subvol);
-
-                if (!mds_subvol) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "cannot determine MDS, fetching xattr %s "
-                                " randomly from a subvol for gfid %s ",
-                                key, gfid);
-                } else {
-                        /* TODO need to handle it, As of now we are
-                           choosing availability instead of chossing
-                           consistencty, in case of hashed_subvol is
-                           down winding a getxattr call on other subvol
-                           and return xattr
-                        */
-                        local->mds_subvol = mds_subvol;
-                        for (i = 0; i < cnt; i++) {
-                                if (conf->subvolumes[i] == mds_subvol) {
-                                        if (!conf->subvolume_status[i]) {
-                                                gf_msg (this->name,
-                                                        GF_LOG_WARNING, 0,
-                                                        DHT_MSG_HASHED_SUBVOL_DOWN,
-                                                        "MDS subvolume %s is down"
-                                                        " for gfid %s so fetching xattr "
-                                                        " %s randomly from a subvol ",
-                                                        local->mds_subvol->name,
-                                                        gfid, key);
-                                                ret = 1;
-                                        }
-                                }
-                        }
-                }
-
-                if (!ret && key && local->mds_subvol &&
-                    dht_match_xattr (key)) {
-                        STACK_WIND (frame, dht_mds_getxattr_cbk,
-                                    local->mds_subvol,
-                                    local->mds_subvol->fops->fgetxattr,
-                                    fd, key, NULL);
+        if (!ret && key && local->mds_subvol && dht_match_xattr(key)) {
+            STACK_WIND(frame, dht_mds_getxattr_cbk, local->mds_subvol,
+                       local->mds_subvol->fops->fgetxattr, fd, key, NULL);
 
-                        return 0;
-                }
-
-        } else {
-                cnt = local->call_cnt  = 1;
+            return 0;
         }
 
+    } else {
+        cnt = local->call_cnt = 1;
+    }
 
-        for (i = 0; i < cnt; i++) {
-                subvol = layout->list[i].xlator;
-                STACK_WIND (frame, dht_getxattr_cbk,
-                            subvol, subvol->fops->fgetxattr,
-                            fd, key, NULL);
-        }
-        return 0;
+    for (i = 0; i < cnt; i++) {
+        subvol = layout->list[i].xlator;
+        STACK_WIND(frame, dht_getxattr_cbk, subvol, subvol->fops->fgetxattr, fd,
+                   key, NULL);
+    }
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fgetxattr, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fgetxattr, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_file_setxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int op_ret, int op_errno, dict_t *xdata)
+dht_file_setxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int op_ret, int op_errno, dict_t *xdata)
 {
-        int           ret     = -1;
-        dht_local_t  *local   = NULL;
-        xlator_t     *prev    = NULL;
-        struct iatt  *stbuf   = NULL;
-        inode_t      *inode   = NULL;
-        xlator_t     *subvol1 = NULL, *subvol2 = NULL;
-
-        local = frame->local;
-        prev = cookie;
+    int ret = -1;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    struct iatt *stbuf = NULL;
+    inode_t *inode = NULL;
+    xlator_t *subvol1 = NULL, *subvol2 = NULL;
 
-        local->op_errno = op_errno;
+    local = frame->local;
+    prev = cookie;
 
-        if ((local->fop == GF_FOP_FSETXATTR) &&
-            op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
+    local->op_errno = op_errno;
 
-        if ((op_ret == -1) && !dht_inode_missing (op_errno)) {
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1.",
-                              prev->name);
-                goto out;
-        }
+    if ((local->fop == GF_FOP_FSETXATTR) && op_ret == -1 &&
+        (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        if (local->call_cnt != 1)
-                goto out;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1.",
+                     prev->name);
+        goto out;
+    }
 
-        ret = dict_get_bin (xdata, DHT_IATT_IN_XDATA_KEY, (void **) &stbuf);
+    if (local->call_cnt != 1)
+        goto out;
 
-        if ((!op_ret) && !stbuf) {
-                goto out;
-        }
+    ret = dict_get_bin(xdata, DHT_IATT_IN_XDATA_KEY, (void **)&stbuf);
 
-        local->op_ret = op_ret;
-        local->rebalance.target_op_fn = dht_setxattr2;
-        if (xdata)
-                local->rebalance.xdata = dict_ref (xdata);
+    if ((!op_ret) && !stbuf) {
+        goto out;
+    }
 
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (stbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
+    local->op_ret = op_ret;
+    local->rebalance.target_op_fn = dht_setxattr2;
+    if (xdata)
+        local->rebalance.xdata = dict_ref(xdata);
 
-        /* Phase 1 of migration */
-        if (IS_DHT_MIGRATION_PHASE1 (stbuf)) {
-                inode = (local->fd) ? local->fd->inode : local->loc.inode;
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(stbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
-                ret = dht_inode_ctx_get_mig_info (this, inode,
-                                                  &subvol1, &subvol2);
-                if (!dht_mig_info_is_invalid (local->cached_subvol,
-                                              subvol1, subvol2)) {
-                        dht_setxattr2 (this, subvol2, frame, 0);
-                        return 0;
-                }
+    /* Phase 1 of migration */
+    if (IS_DHT_MIGRATION_PHASE1(stbuf)) {
+        inode = (local->fd) ? local->fd->inode : local->loc.inode;
 
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
+        ret = dht_inode_ctx_get_mig_info(this, inode, &subvol1, &subvol2);
+        if (!dht_mig_info_is_invalid(local->cached_subvol, subvol1, subvol2)) {
+            dht_setxattr2(this, subvol2, frame, 0);
+            return 0;
         }
 
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
+
 out:
 
-        if (local->fop == GF_FOP_SETXATTR) {
-                DHT_STACK_UNWIND (setxattr, frame, op_ret, op_errno, xdata);
-        } else {
-                DHT_STACK_UNWIND (fsetxattr, frame, op_ret, op_errno, xdata);
-        }
+    if (local->fop == GF_FOP_SETXATTR) {
+        DHT_STACK_UNWIND(setxattr, frame, op_ret, op_errno, xdata);
+    } else {
+        DHT_STACK_UNWIND(fsetxattr, frame, op_ret, op_errno, xdata);
+    }
 
-        return 0;
+    return 0;
 }
 
 /* Function is call by dict_foreach_fnmatch if key is match with
    user.* and set boolean flag to true
 */
 static int
-dht_is_user_xattr (dict_t *this, char *key, data_t *value, void *data)
+dht_is_user_xattr(dict_t *this, char *key, data_t *value, void *data)
 {
-        gf_boolean_t *user_xattr_found = data;
-        *user_xattr_found = _gf_true;
-        return 0;
+    gf_boolean_t *user_xattr_found = data;
+    *user_xattr_found = _gf_true;
+    return 0;
 }
 
-
 /* Common code to wind a (f)(set|remove)xattr call to set xattr on directory
-*/
+ */
 int
-dht_dir_common_set_remove_xattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
-                                 fd_t *fd, dict_t *xattr, int flags, dict_t *xdata,
-                                 int *op_errno)
-
-{
-        dict_t       *xattrop             = NULL;
-        int32_t       subone[1]            = {-1};
-        gf_boolean_t  uxattr_key_found     = _gf_false;
-        xlator_t     *mds_subvol          = NULL;
-        xlator_t     *travvol              = NULL;
-        dht_conf_t   *conf                = NULL;
-        int           ret                  = -1;
-        int           i                    = 0;
-        int           call_cnt             = 0;
-        dht_local_t  *local                = NULL;
-        char          gfid_local[GF_UUID_BUF_SIZE] = {0};
-
-        conf = this->private;
-        local    = frame->local;
-        call_cnt = conf->subvolume_cnt;
-        local->flags = flags;
-
-        if (!gf_uuid_is_null (local->gfid)) {
-                gf_uuid_unparse(local->gfid, gfid_local);
-        }
-
-        if ((local->fop == GF_FOP_SETXATTR) ||
-            (local->fop == GF_FOP_FSETXATTR)) {
-                /* Check if any user xattr present in xattr
-                */
-                dict_foreach_fnmatch (xattr, "user*", dht_is_user_xattr,
-                                      &uxattr_key_found);
-
-                /* Check if any custom key xattr present in dict xattr
-                   and start index from 1 because user xattr already
-                   checked in previous line
-                */
-                for (i = 1; xattrs_to_heal[i]; i++)
-                        if (dict_get (xattr, xattrs_to_heal[i]))
-                                uxattr_key_found = _gf_true;
-        }
+dht_dir_common_set_remove_xattr(call_frame_t *frame, xlator_t *this, loc_t *loc,
+                                fd_t *fd, dict_t *xattr, int flags,
+                                dict_t *xdata, int *op_errno)
+
+{
+    dict_t *xattrop = NULL;
+    int32_t subone[1] = {-1};
+    gf_boolean_t uxattr_key_found = _gf_false;
+    xlator_t *mds_subvol = NULL;
+    xlator_t *travvol = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    int i = 0;
+    int call_cnt = 0;
+    dht_local_t *local = NULL;
+    char gfid_local[GF_UUID_BUF_SIZE] = {0};
+
+    conf = this->private;
+    local = frame->local;
+    call_cnt = conf->subvolume_cnt;
+    local->flags = flags;
+
+    if (!gf_uuid_is_null(local->gfid)) {
+        gf_uuid_unparse(local->gfid, gfid_local);
+    }
 
-        if ((local->fop == GF_FOP_REMOVEXATTR) ||
-            (local->fop == GF_FOP_FREMOVEXATTR)) {
-                /* Check if any custom key xattr present in local->key
-                */
-                for (i = 0; xattrs_to_heal[i]; i++)
-                        if (strstr (local->key, xattrs_to_heal[i]))
-                                uxattr_key_found = _gf_true;
-        }
+    if ((local->fop == GF_FOP_SETXATTR) || (local->fop == GF_FOP_FSETXATTR)) {
+        /* Check if any user xattr present in xattr
+         */
+        dict_foreach_fnmatch(xattr, "user*", dht_is_user_xattr,
+                             &uxattr_key_found);
 
-        /* If there is no custom key xattr present or gfid is root
-           or call_cnt is 1 then wind a (f)setxattr call on all subvols
+        /* Check if any custom key xattr present in dict xattr
+           and start index from 1 because user xattr already
+           checked in previous line
         */
-        if (!uxattr_key_found || __is_root_gfid (local->gfid) || call_cnt == 1) {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        travvol = conf->subvolumes[i];
-                        if ((local->fop == GF_FOP_SETXATTR) ||
-                            (local->fop == GF_FOP_FSETXATTR)) {
-                                if (fd) {
-                                        STACK_WIND_COOKIE (frame, dht_err_cbk,
-                                                           travvol, travvol,
-                                                           travvol->fops->fsetxattr,
-                                                           fd, xattr, flags, xdata);
-                                } else {
-                                        STACK_WIND_COOKIE (frame, dht_err_cbk,
-                                                           travvol, travvol,
-                                                           travvol->fops->setxattr,
-                                                           loc, xattr, flags, xdata);
-                                }
-                        }
-
-                        if ((local->fop == GF_FOP_REMOVEXATTR) ||
-                            (local->fop == GF_FOP_FREMOVEXATTR)) {
-                                if (fd) {
-                                        STACK_WIND_COOKIE (frame, dht_err_cbk,
-                                                           travvol, travvol,
-                                                           travvol->fops->fremovexattr,
-                                                           fd, local->key, local->xattr_req);
-                                } else {
-                                        STACK_WIND_COOKIE (frame, dht_err_cbk,
-                                                           travvol, travvol,
-                                                           travvol->fops->removexattr,
-                                                           loc, local->key, local->xattr_req);
-                                }
-                        }
-                }
-
-                return 0;
-        }
-
-        /* Calculate hash subvol based on inode and parent inode
+        for (i = 1; xattrs_to_heal[i]; i++)
+            if (dict_get(xattr, xattrs_to_heal[i]))
+                uxattr_key_found = _gf_true;
+    }
+
+    if ((local->fop == GF_FOP_REMOVEXATTR) ||
+        (local->fop == GF_FOP_FREMOVEXATTR)) {
+        /* Check if any custom key xattr present in local->key
          */
-        if (fd) {
-                ret = dht_inode_ctx_mdsvol_get (fd->inode, this, &mds_subvol);
-        } else {
-                ret = dht_inode_ctx_mdsvol_get (loc->inode, this, &mds_subvol);
-        }
-        if (ret || !mds_subvol) {
+        for (i = 0; xattrs_to_heal[i]; i++)
+            if (strstr(local->key, xattrs_to_heal[i]))
+                uxattr_key_found = _gf_true;
+    }
+
+    /* If there is no custom key xattr present or gfid is root
+       or call_cnt is 1 then wind a (f)setxattr call on all subvols
+    */
+    if (!uxattr_key_found || __is_root_gfid(local->gfid) || call_cnt == 1) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            travvol = conf->subvolumes[i];
+            if ((local->fop == GF_FOP_SETXATTR) ||
+                (local->fop == GF_FOP_FSETXATTR)) {
                 if (fd) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "Failed to get mds subvol for fd %p"
-                                "gfid is %s ", fd, gfid_local);
+                    STACK_WIND_COOKIE(frame, dht_err_cbk, travvol, travvol,
+                                      travvol->fops->fsetxattr, fd, xattr,
+                                      flags, xdata);
                 } else {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "Failed to get mds subvol for path %s"
-                                "gfid is %s ", loc->path, gfid_local);
+                    STACK_WIND_COOKIE(frame, dht_err_cbk, travvol, travvol,
+                                      travvol->fops->setxattr, loc, xattr,
+                                      flags, xdata);
                 }
-                (*op_errno) = ENOENT;
-                goto err;
-        }
-
-        local->mds_subvol = mds_subvol;
-
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->subvolumes[i] ==  mds_subvol) {
-                        if (!conf->subvolume_status[i]) {
-                                gf_msg (this->name, GF_LOG_WARNING,
-                                        0, DHT_MSG_HASHED_SUBVOL_DOWN,
-                                        "MDS subvol is down for path "
-                                        " %s gfid is %s Unable to set xattr " ,
-                                        local->loc.path, gfid_local);
-                                (*op_errno) = ENOTCONN;
-                                goto err;
-                        }
-                }
-        }
+            }
 
-        if (uxattr_key_found) {
-                xattrop = dict_new ();
-                if (!xattrop) {
-                        gf_msg (this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY,
-                                0, "dictionary creation failed for path %s "
-                                "for gfid is %s ", local->loc.path, gfid_local);
-                        (*op_errno) = ENOMEM;
-                        goto err;
-                }
-                local->xattr = dict_ref (xattr);
-                /* Subtract current MDS xattr value to -1 , value of MDS
-                   xattr represents no. of times xattr modification failed
-                   on non MDS subvols.
-                */
-                ret = dht_dict_set_array (xattrop, conf->mds_xattr_key, subone, 1);
-                if (ret != 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
-                                "dictionary set array failed for path %s "
-                                "for gfid is %s ", local->loc.path, gfid_local);
-                        if (xattrop)
-                                dict_unref (xattrop);
-                        (*op_errno) = ret;
-                        goto err;
-                }
-                /* Wind a xattrop call to use ref counting approach
-                   update mds xattr to -1 before update xattr on
-                   hashed subvol and update mds xattr to +1 after update
-                   xattr on all non hashed subvol
-                */
+            if ((local->fop == GF_FOP_REMOVEXATTR) ||
+                (local->fop == GF_FOP_FREMOVEXATTR)) {
                 if (fd) {
-                        STACK_WIND (frame, dht_xattrop_mds_cbk,
-                                    local->mds_subvol,
-                                    local->mds_subvol->fops->fxattrop,
-                                     fd, GF_XATTROP_ADD_ARRAY, xattrop, NULL);
+                    STACK_WIND_COOKIE(frame, dht_err_cbk, travvol, travvol,
+                                      travvol->fops->fremovexattr, fd,
+                                      local->key, local->xattr_req);
                 } else {
-                        STACK_WIND (frame, dht_xattrop_mds_cbk,
-                                    local->mds_subvol,
-                                    local->mds_subvol->fops->xattrop,
-                                    loc, GF_XATTROP_ADD_ARRAY,
-                                    xattrop, NULL);
+                    STACK_WIND_COOKIE(frame, dht_err_cbk, travvol, travvol,
+                                      travvol->fops->removexattr, loc,
+                                      local->key, local->xattr_req);
                 }
-                if (xattrop)
-                        dict_unref (xattrop);
+            }
         }
 
         return 0;
-err:
-        return -1;
-}
-
-
-int
-dht_fsetxattr (call_frame_t *frame, xlator_t *this,
-               fd_t *fd, dict_t *xattr, int flags, dict_t *xdata)
-{
-        xlator_t     *subvol   = NULL;
-        dht_local_t  *local    = NULL;
-        int           op_errno = EINVAL;
-        dht_conf_t   *conf     = NULL;
-        dht_layout_t *layout   = NULL;
-        int           ret      = -1;
-        int           call_cnt = 0;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-        VALIDATE_OR_GOTO (fd->inode, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        if (!conf->defrag)
-                GF_IF_INTERNAL_XATTR_GOTO (conf->wild_xattr_name, xattr,
-                                           op_errno, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FSETXATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
+    }
 
-        layout = local->layout;
-        if (!layout) {
-                gf_msg_debug (this->name, 0,
-                              "no layout for fd=%p", fd);
-                op_errno = EINVAL;
+    /* Calculate hash subvol based on inode and parent inode
+     */
+    if (fd) {
+        ret = dht_inode_ctx_mdsvol_get(fd->inode, this, &mds_subvol);
+    } else {
+        ret = dht_inode_ctx_mdsvol_get(loc->inode, this, &mds_subvol);
+    }
+    if (ret || !mds_subvol) {
+        if (fd) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "Failed to get mds subvol for fd %p"
+                   "gfid is %s ",
+                   fd, gfid_local);
+        } else {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "Failed to get mds subvol for path %s"
+                   "gfid is %s ",
+                   loc->path, gfid_local);
+        }
+        (*op_errno) = ENOENT;
+        goto err;
+    }
+
+    local->mds_subvol = mds_subvol;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->subvolumes[i] == mds_subvol) {
+            if (!conf->subvolume_status[i]) {
+                gf_msg(this->name, GF_LOG_WARNING, 0,
+                       DHT_MSG_HASHED_SUBVOL_DOWN,
+                       "MDS subvol is down for path "
+                       " %s gfid is %s Unable to set xattr ",
+                       local->loc.path, gfid_local);
+                (*op_errno) = ENOTCONN;
                 goto err;
+            }
         }
-
-        local->xattr_req = xdata ? dict_ref (xdata) : dict_new ();
-        local->call_cnt = call_cnt = layout->cnt;
-
-        if (IA_ISDIR (fd->inode->ia_type)) {
-                local->hashed_subvol = NULL;
-                ret = dht_dir_common_set_remove_xattr (frame, this, NULL, fd,
-                                                       xattr, flags, xdata, &op_errno);
-                if (ret)
-                        goto err;
+    }
+
+    if (uxattr_key_found) {
+        xattrop = dict_new();
+        if (!xattrop) {
+            gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
+                   "dictionary creation failed for path %s "
+                   "for gfid is %s ",
+                   local->loc.path, gfid_local);
+            (*op_errno) = ENOMEM;
+            goto err;
+        }
+        local->xattr = dict_ref(xattr);
+        /* Subtract current MDS xattr value to -1 , value of MDS
+           xattr represents no. of times xattr modification failed
+           on non MDS subvols.
+        */
+        ret = dht_dict_set_array(xattrop, conf->mds_xattr_key, subone, 1);
+        if (ret != 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "dictionary set array failed for path %s "
+                   "for gfid is %s ",
+                   local->loc.path, gfid_local);
+            if (xattrop)
+                dict_unref(xattrop);
+            (*op_errno) = ret;
+            goto err;
+        }
+        /* Wind a xattrop call to use ref counting approach
+           update mds xattr to -1 before update xattr on
+           hashed subvol and update mds xattr to +1 after update
+           xattr on all non hashed subvol
+        */
+        if (fd) {
+            STACK_WIND(frame, dht_xattrop_mds_cbk, local->mds_subvol,
+                       local->mds_subvol->fops->fxattrop, fd,
+                       GF_XATTROP_ADD_ARRAY, xattrop, NULL);
         } else {
+            STACK_WIND(frame, dht_xattrop_mds_cbk, local->mds_subvol,
+                       local->mds_subvol->fops->xattrop, loc,
+                       GF_XATTROP_ADD_ARRAY, xattrop, NULL);
+        }
+        if (xattrop)
+            dict_unref(xattrop);
+    }
 
-                local->call_cnt = 1;
-                local->rebalance.xattr = dict_ref (xattr);
-                local->rebalance.flags = flags;
-
-                ret = dict_set_int8 (local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                      "Failed to set dictionary key %s for fd=%p",
-                                      DHT_IATT_IN_XDATA_KEY, fd);
-                }
+    return 0;
+err:
+    return -1;
+}
+
+int
+dht_fsetxattr(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xattr,
+              int flags, dict_t *xdata)
+{
+    xlator_t *subvol = NULL;
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
+    dht_conf_t *conf = NULL;
+    dht_layout_t *layout = NULL;
+    int ret = -1;
+    int call_cnt = 0;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+    VALIDATE_OR_GOTO(fd->inode, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    if (!conf->defrag)
+        GF_IF_INTERNAL_XATTR_GOTO(conf->wild_xattr_name, xattr, op_errno, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FSETXATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg_debug(this->name, 0, "no layout for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    local->xattr_req = xdata ? dict_ref(xdata) : dict_new();
+    local->call_cnt = call_cnt = layout->cnt;
+
+    if (IA_ISDIR(fd->inode->ia_type)) {
+        local->hashed_subvol = NULL;
+        ret = dht_dir_common_set_remove_xattr(frame, this, NULL, fd, xattr,
+                                              flags, xdata, &op_errno);
+        if (ret)
+            goto err;
+    } else {
+        local->call_cnt = 1;
+        local->rebalance.xattr = dict_ref(xattr);
+        local->rebalance.flags = flags;
 
-                STACK_WIND_COOKIE (frame, dht_file_setxattr_cbk, subvol,
-                                   subvol, subvol->fops->fsetxattr, fd, xattr,
-                                   flags, local->xattr_req);
+        ret = dict_set_int8(local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
+        if (ret) {
+            gf_msg_debug(this->name, 0,
+                         "Failed to set dictionary key %s for fd=%p",
+                         DHT_IATT_IN_XDATA_KEY, fd);
         }
-        return 0;
+
+        STACK_WIND_COOKIE(frame, dht_file_setxattr_cbk, subvol, subvol,
+                          subvol->fops->fsetxattr, fd, xattr, flags,
+                          local->xattr_req);
+    }
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fsetxattr, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fsetxattr, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_checking_pathinfo_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int op_ret, int op_errno, dict_t *xattr,
-                           dict_t *xdata)
+dht_checking_pathinfo_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int op_ret, int op_errno, dict_t *xattr,
+                          dict_t *xdata)
 {
-        int           i     = -1;
-        int           ret   = -1;
-        char         *value = NULL;
-        dht_local_t  *local = NULL;
-        dht_conf_t   *conf  = NULL;
-        xlator_t     *prev  = NULL;
-        int           this_call_cnt = 0;
-
-        local = frame->local;
-        prev = cookie;
-        conf = this->private;
+    int i = -1;
+    int ret = -1;
+    char *value = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *prev = NULL;
+    int this_call_cnt = 0;
 
-        if (op_ret == -1)
-                goto out;
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
 
+    if (op_ret == -1)
+        goto out;
 
-        ret = dict_get_str (xattr, GF_XATTR_PATHINFO_KEY, &value);
-        if (ret)
-                goto out;
+    ret = dict_get_str(xattr, GF_XATTR_PATHINFO_KEY, &value);
+    if (ret)
+        goto out;
 
-        if (!strcmp (value, local->key)) {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (conf->subvolumes[i] == prev)
-                                conf->decommissioned_bricks[i] = prev;
-                }
+    if (!strcmp(value, local->key)) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->subvolumes[i] == prev)
+                conf->decommissioned_bricks[i] = prev;
         }
+    }
 
 out:
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                DHT_STACK_UNWIND (setxattr, frame, local->op_ret, ENOTSUP, NULL);
-        }
-        return 0;
-
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        DHT_STACK_UNWIND(setxattr, frame, local->op_ret, ENOTSUP, NULL);
+    }
+    return 0;
 }
 
-
 int
-dht_setxattr2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_setxattr2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t  *local  = NULL;
-        int          op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
 
-        if (!frame || !frame->local)
-                goto err;
+    if (!frame || !frame->local)
+        goto err;
 
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (setxattr, frame, local->op_ret,
-                                  local->op_errno, local->rebalance.xdata);
-                return 0;
-        }
+    local = frame->local;
+    op_errno = local->op_errno;
 
-        if (subvol == NULL)
-                goto err;
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(setxattr, frame, local->op_ret, local->op_errno,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
+    if (subvol == NULL)
+        goto err;
 
-        local->call_cnt = 2; /* This is the second attempt */
+    local->call_cnt = 2; /* This is the second attempt */
 
-        if (local->fop == GF_FOP_SETXATTR) {
-                STACK_WIND_COOKIE (frame, dht_file_setxattr_cbk, subvol,
-                                   subvol, subvol->fops->setxattr, &local->loc,
-                                   local->rebalance.xattr,
-                                   local->rebalance.flags, local->xattr_req);
-        } else {
-                STACK_WIND_COOKIE (frame, dht_file_setxattr_cbk, subvol,
-                                   subvol, subvol->fops->fsetxattr, local->fd,
-                                   local->rebalance.xattr,
-                                   local->rebalance.flags, local->xattr_req);
-        }
+    if (local->fop == GF_FOP_SETXATTR) {
+        STACK_WIND_COOKIE(frame, dht_file_setxattr_cbk, subvol, subvol,
+                          subvol->fops->setxattr, &local->loc,
+                          local->rebalance.xattr, local->rebalance.flags,
+                          local->xattr_req);
+    } else {
+        STACK_WIND_COOKIE(frame, dht_file_setxattr_cbk, subvol, subvol,
+                          subvol->fops->fsetxattr, local->fd,
+                          local->rebalance.xattr, local->rebalance.flags,
+                          local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (setxattr, frame, (local ? local->op_ret : -1),
-                          op_errno, NULL);
-        return 0;
+    DHT_STACK_UNWIND(setxattr, frame, (local ? local->op_ret : -1), op_errno,
+                     NULL);
+    return 0;
 }
 
 int
-dht_nuke_dir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int32_t op_ret, int32_t op_errno, struct iatt *preparent,
-                  struct iatt *postparent, dict_t *xdata)
+dht_nuke_dir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                 int32_t op_ret, int32_t op_errno, struct iatt *preparent,
+                 struct iatt *postparent, dict_t *xdata)
 {
-        STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno, NULL);
+    STACK_UNWIND_STRICT(setxattr, frame, op_ret, op_errno, NULL);
+    return 0;
+}
+
+int
+dht_nuke_dir(call_frame_t *frame, xlator_t *this, loc_t *loc, data_t *tmp)
+{
+    if (!IA_ISDIR(loc->inode->ia_type)) {
+        DHT_STACK_UNWIND(setxattr, frame, -1, ENOTSUP, NULL);
         return 0;
-}
-
-int
-dht_nuke_dir (call_frame_t *frame, xlator_t *this, loc_t *loc, data_t *tmp)
-{
-        if (!IA_ISDIR(loc->inode->ia_type)) {
-                DHT_STACK_UNWIND (setxattr, frame, -1, ENOTSUP, NULL);
-                return 0;
+    }
+
+    /* Setxattr didn't need the parent, but rmdir does. */
+    loc->parent = inode_parent(loc->inode, NULL, NULL);
+    if (!loc->parent) {
+        DHT_STACK_UNWIND(setxattr, frame, -1, ENOENT, NULL);
+        return 0;
+    }
+    gf_uuid_copy(loc->pargfid, loc->parent->gfid);
+
+    if (!loc->name && loc->path) {
+        loc->name = strrchr(loc->path, '/');
+        if (loc->name) {
+            ++(loc->name);
         }
+    }
 
-        /* Setxattr didn't need the parent, but rmdir does. */
-        loc->parent = inode_parent (loc->inode, NULL, NULL);
-        if (!loc->parent) {
-                DHT_STACK_UNWIND (setxattr, frame, -1, ENOENT, NULL);
-                return 0;
-        }
-        gf_uuid_copy (loc->pargfid, loc->parent->gfid);
+    /*
+     * We do this instead of calling dht_rmdir_do directly for two reasons.
+     * The first is that we want to reuse all of the initialization that
+     * dht_rmdir does, so if it ever changes we'll just follow along.  The
+     * second (i.e. why we don't use STACK_WIND_TAIL) is so that we don't
+     * obscure the fact that we came in via this path instead of a genuine
+     * rmdir.  That makes debugging just a tiny bit easier.
+     */
+    STACK_WIND(frame, dht_nuke_dir_cbk, this, this->fops->rmdir, loc, 1, NULL);
 
-        if (!loc->name && loc->path) {
-                loc->name = strrchr (loc->path, '/');
-                if (loc->name) {
-                        ++(loc->name);
-                }
-        }
-
-        /*
-         * We do this instead of calling dht_rmdir_do directly for two reasons.
-         * The first is that we want to reuse all of the initialization that
-         * dht_rmdir does, so if it ever changes we'll just follow along.  The
-         * second (i.e. why we don't use STACK_WIND_TAIL) is so that we don't
-         * obscure the fact that we came in via this path instead of a genuine
-         * rmdir.  That makes debugging just a tiny bit easier.
-         */
-        STACK_WIND (frame, dht_nuke_dir_cbk, this, this->fops->rmdir,
-                    loc, 1, NULL);
-
-        return 0;
+    return 0;
 }
 
-
 int
-dht_setxattr (call_frame_t *frame, xlator_t *this,
-              loc_t *loc, dict_t *xattr, int flags, dict_t *xdata)
+dht_setxattr(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr,
+             int flags, dict_t *xdata)
 {
-        xlator_t     *subvol   = NULL;
-        dht_local_t  *local    = NULL;
-        dht_conf_t   *conf     = NULL;
-        dht_methods_t *methods = NULL;
-        dht_layout_t *layout   = NULL;
-        int           i        = 0;
-        int           op_errno = EINVAL;
-        int           ret      = -1;
-        data_t       *tmp      = NULL;
-        uint32_t      dir_spread = 0;
-        char          value[4096] = {0,};
-        gf_dht_migrate_data_type_t forced_rebalance = GF_DHT_MIGRATE_DATA;
-        int           call_cnt = 0;
-        uint32_t      new_hash = 0;
+    xlator_t *subvol = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
+    dht_layout_t *layout = NULL;
+    int i = 0;
+    int op_errno = EINVAL;
+    int ret = -1;
+    data_t *tmp = NULL;
+    uint32_t dir_spread = 0;
+    char value[4096] = {
+        0,
+    };
+    gf_dht_migrate_data_type_t forced_rebalance = GF_DHT_MIGRATE_DATA;
+    int call_cnt = 0;
+    uint32_t new_hash = 0;
 
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, err);
 
-        conf   = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, err);
-
-        methods = &(conf->methods);
-
-        /* Rebalance daemon is allowed to set internal keys */
-        if (!conf->defrag)
-                GF_IF_INTERNAL_XATTR_GOTO (conf->wild_xattr_name, xattr,
-                                           op_errno, err);
+    methods = &(conf->methods);
+
+    /* Rebalance daemon is allowed to set internal keys */
+    if (!conf->defrag)
+        GF_IF_INTERNAL_XATTR_GOTO(conf->wild_xattr_name, xattr, op_errno, err);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_SETXATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg_debug(this->name, 0, "no layout for path=%s", loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    local->call_cnt = call_cnt = layout->cnt;
+    tmp = dict_get(xattr, conf->mds_xattr_key);
+    if (tmp) {
+        op_errno = ENOTSUP;
+        goto err;
+    }
+
+    tmp = dict_get(xattr, GF_XATTR_FILE_MIGRATE_KEY);
+    if (tmp) {
+        if (IA_ISDIR(loc->inode->ia_type)) {
+            op_errno = ENOTSUP;
+            goto err;
+        }
+
+        /* TODO: need to interpret the 'value' for more meaning
+           (ie, 'target' subvolume given there, etc) */
+        memcpy(value, tmp->data, tmp->len);
+        if (strcmp(value, "force") == 0)
+            forced_rebalance = GF_DHT_MIGRATE_DATA_EVEN_IF_LINK_EXISTS;
+
+        if (conf->decommission_in_progress)
+            forced_rebalance = GF_DHT_MIGRATE_HARDLINK;
+
+        if (!loc->path) {
+            op_errno = EINVAL;
+            goto err;
+        }
+
+        if (!local->loc.name)
+            local->loc.name = strrchr(local->loc.path, '/') + 1;
+
+        if (!local->loc.parent)
+            local->loc.parent = inode_parent(local->loc.inode, NULL, NULL);
+
+        if ((!local->loc.name) || (!local->loc.parent)) {
+            op_errno = EINVAL;
+            goto err;
+        }
+
+        if (gf_uuid_is_null(local->loc.pargfid))
+            gf_uuid_copy(local->loc.pargfid, local->loc.parent->gfid);
+
+        methods->migration_get_dst_subvol(this, local);
+
+        if (!local->rebalance.target_node) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "Failed to get hashed subvol for %s", loc->path);
+            op_errno = EINVAL;
+            goto err;
+        }
+
+        local->rebalance.from_subvol = local->cached_subvol;
+
+        if (local->rebalance.target_node == local->rebalance.from_subvol) {
+            op_errno = EEXIST;
+            goto err;
+        }
+        if (local->rebalance.target_node) {
+            local->flags = forced_rebalance;
+
+            /* Flag to suggest its a tiering migration
+             * The reason for this dic key-value is that
+             * promotions and demotions are multithreaded
+             * so the original frame from gf_defrag_start()
+             * is not carried. A new frame will be created when
+             * we do syncop_setxattr(). This does not have the
+             * frame->root->pid of the original frame. So we pass
+             * this dic key-value when we do syncop_setxattr() to do
+             * data migration and set the frame->root->pid to
+             * GF_CLIENT_PID_TIER_DEFRAG in dht_setxattr() just before
+             * calling dht_start_rebalance_task() */
+            tmp = dict_get(xattr, TIERING_MIGRATION_KEY);
+            if (tmp)
+                frame->root->pid = GF_CLIENT_PID_TIER_DEFRAG;
+            else
+                frame->root->pid = GF_CLIENT_PID_DEFRAG;
+
+            ret = dht_start_rebalance_task(this, frame);
+            if (!ret)
+                return 0;
 
-        local = dht_local_init (frame, loc, NULL, GF_FOP_SETXATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_REBALANCE_START_FAILED,
+                   "%s: failed to create a new rebalance synctask", loc->path);
         }
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s",
-                              loc->path);
-                op_errno = EINVAL;
-                goto err;
+    tmp = dict_get(xattr, "decommission-brick");
+    if (tmp) {
+        /* This operation should happen only on '/' */
+        if (!__is_root_gfid(loc->inode->gfid)) {
+            op_errno = ENOTSUP;
+            goto err;
         }
 
-        layout = local->layout;
-        if (!layout) {
-                gf_msg_debug (this->name, 0,
-                              "no layout for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
+        memcpy(value, tmp->data, min(tmp->len, 4095));
+        local->key = gf_strdup(value);
+        local->call_cnt = conf->subvolume_cnt;
 
-        local->call_cnt = call_cnt = layout->cnt;
-        tmp = dict_get (xattr, conf->mds_xattr_key);
-        if (tmp) {
-                op_errno = ENOTSUP;
-                goto err;
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            /* Get the pathinfo, and then compare */
+            STACK_WIND_COOKIE(frame, dht_checking_pathinfo_cbk,
+                              conf->subvolumes[i], conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->getxattr, loc,
+                              GF_XATTR_PATHINFO_KEY, NULL);
         }
+        return 0;
+    }
 
-        tmp = dict_get (xattr, GF_XATTR_FILE_MIGRATE_KEY);
-        if (tmp) {
-
-                if (IA_ISDIR (loc->inode->ia_type)) {
-                        op_errno = ENOTSUP;
-                        goto err;
-                }
-
-                /* TODO: need to interpret the 'value' for more meaning
-                   (ie, 'target' subvolume given there, etc) */
-                memcpy (value, tmp->data, tmp->len);
-                if (strcmp (value, "force") == 0)
-                       forced_rebalance =
-                                GF_DHT_MIGRATE_DATA_EVEN_IF_LINK_EXISTS;
-
-                if (conf->decommission_in_progress)
-                        forced_rebalance = GF_DHT_MIGRATE_HARDLINK;
-
-                if (!loc->path) {
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                if (!local->loc.name)
-                        local->loc.name = strrchr (local->loc.path, '/')+1;
-
-                if (!local->loc.parent)
-                        local->loc.parent =
-                                inode_parent(local->loc.inode, NULL, NULL);
-
-                if ((!local->loc.name) || (!local->loc.parent)) {
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                if (gf_uuid_is_null (local->loc.pargfid))
-                        gf_uuid_copy (local->loc.pargfid, local->loc.parent->gfid);
-
-                methods->migration_get_dst_subvol(this, local);
-
-                if (!local->rebalance.target_node) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "Failed to get hashed subvol for %s",
-                                loc->path);
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                local->rebalance.from_subvol = local->cached_subvol;
+    tmp = dict_get(xattr, GF_XATTR_FIX_LAYOUT_KEY);
+    if (tmp) {
+        ret = dict_get_uint32(xattr, "new-commit-hash", &new_hash);
+        if (ret == 0) {
+            gf_msg_debug(this->name, 0,
+                         "updating commit hash for %s from %u to %u",
+                         uuid_utoa(loc->gfid), layout->commit_hash, new_hash);
+            layout->commit_hash = new_hash;
 
-                if (local->rebalance.target_node == local->rebalance.from_subvol) {
-                        op_errno = EEXIST;
-                        goto err;
-                }
-                if (local->rebalance.target_node) {
-                        local->flags = forced_rebalance;
-
-                        /* Flag to suggest its a tiering migration
-                         * The reason for this dic key-value is that
-                         * promotions and demotions are multithreaded
-                         * so the original frame from gf_defrag_start()
-                         * is not carried. A new frame will be created when
-                         * we do syncop_setxattr(). This does not have the
-                         * frame->root->pid of the original frame. So we pass
-                         * this dic key-value when we do syncop_setxattr() to do
-                         * data migration and set the frame->root->pid to
-                         * GF_CLIENT_PID_TIER_DEFRAG in dht_setxattr() just before
-                         * calling dht_start_rebalance_task() */
-                        tmp = dict_get (xattr, TIERING_MIGRATION_KEY);
-                        if (tmp)
-                                frame->root->pid = GF_CLIENT_PID_TIER_DEFRAG;
-                        else
-                                frame->root->pid = GF_CLIENT_PID_DEFRAG;
-
-                        ret = dht_start_rebalance_task (this, frame);
-                        if (!ret)
-                                return 0;
-
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_REBALANCE_START_FAILED,
-                                "%s: failed to create a new rebalance synctask",
-                                loc->path);
-                }
-                op_errno = EINVAL;
+            ret = dht_update_commit_hash_for_layout(frame);
+            if (ret) {
+                op_errno = ENOTCONN;
                 goto err;
-
+            }
+            return ret;
         }
 
-        tmp = dict_get (xattr, "decommission-brick");
-        if (tmp) {
-                /* This operation should happen only on '/' */
-                if (!__is_root_gfid (loc->inode->gfid)) {
-                        op_errno = ENOTSUP;
-                        goto err;
-                }
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_FIX_LAYOUT_INFO,
+               "fixing the layout of %s", loc->path);
 
-                memcpy (value, tmp->data, min (tmp->len, 4095));
-                local->key = gf_strdup (value);
-                local->call_cnt = conf->subvolume_cnt;
-
-                for (i = 0 ; i < conf->subvolume_cnt; i++) {
-                        /* Get the pathinfo, and then compare */
-                        STACK_WIND_COOKIE (frame, dht_checking_pathinfo_cbk,
-                                           conf->subvolumes[i], conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->getxattr,
-                                           loc, GF_XATTR_PATHINFO_KEY, NULL);
-                }
-                return 0;
+        ret = dht_fix_directory_layout(frame, dht_fix_layout_setxattr_cbk,
+                                       layout);
+        if (ret) {
+            op_errno = ENOTCONN;
+            goto err;
         }
+        return ret;
+    }
 
-        tmp = dict_get (xattr, GF_XATTR_FIX_LAYOUT_KEY);
-        if (tmp) {
-                ret = dict_get_uint32(xattr, "new-commit-hash", &new_hash);
-                if (ret == 0) {
-                        gf_msg_debug (this->name, 0,
-                                      "updating commit hash for %s from %u to %u",
-                                      uuid_utoa(loc->gfid),
-                                      layout->commit_hash, new_hash);
-                        layout->commit_hash = new_hash;
-
-                        ret = dht_update_commit_hash_for_layout (frame);
-                        if (ret) {
-                                op_errno = ENOTCONN;
-                                goto err;
-                        }
-                        return ret;
-                }
-
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_FIX_LAYOUT_INFO,
-                        "fixing the layout of %s", loc->path);
-
-                ret = dht_fix_directory_layout (frame,
-                                                dht_fix_layout_setxattr_cbk,
-                                                layout);
-                if (ret) {
-                        op_errno = ENOTCONN;
-                        goto err;
-                }
-                return ret;
-        }
+    tmp = dict_get(xattr, "distribute.directory-spread-count");
+    if (tmp) {
+        /* Setxattr value is packed as 'binary', not string */
+        memcpy(value, tmp->data, min(tmp->len, 4095));
+        ret = gf_string2uint32(value, &dir_spread);
+        if (!ret && ((dir_spread <= conf->subvolume_cnt) && (dir_spread > 0))) {
+            layout->spread_cnt = dir_spread;
 
-        tmp = dict_get (xattr, "distribute.directory-spread-count");
-        if (tmp) {
-                /* Setxattr value is packed as 'binary', not string */
-                memcpy (value, tmp->data, min (tmp->len, 4095));
-                ret = gf_string2uint32 (value, &dir_spread);
-                if (!ret && ((dir_spread <= conf->subvolume_cnt) &&
-                             (dir_spread > 0))) {
-                        layout->spread_cnt = dir_spread;
-
-                        ret = dht_fix_directory_layout (frame,
-                                                        dht_common_setxattr_cbk,
-                                                        layout);
-                        if (ret) {
-                                op_errno = ENOTCONN;
-                                goto err;
-                        }
-                        return ret;
-                }
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_OPERATION_NOT_SUP,
-                        "wrong 'directory-spread-count' value (%s)", value);
-                op_errno = ENOTSUP;
+            ret = dht_fix_directory_layout(frame, dht_common_setxattr_cbk,
+                                           layout);
+            if (ret) {
+                op_errno = ENOTCONN;
                 goto err;
-        }
-
-        tmp = dict_get (xattr, "glusterfs.dht.nuke");
-        if (tmp) {
-                return dht_nuke_dir (frame, this, loc, tmp);
-        }
-        local->xattr_req = xdata ? dict_ref (xdata) : dict_new ();
-
-        if (IA_ISDIR (loc->inode->ia_type)) {
-                local->hashed_subvol = NULL;
-                ret = dht_dir_common_set_remove_xattr (frame, this, loc, NULL,
-                                                       xattr, flags, xdata, &op_errno);
-                if (ret)
-                        goto err;
-        } else {
+            }
+            return ret;
+        }
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_OPERATION_NOT_SUP,
+               "wrong 'directory-spread-count' value (%s)", value);
+        op_errno = ENOTSUP;
+        goto err;
+    }
+
+    tmp = dict_get(xattr, "glusterfs.dht.nuke");
+    if (tmp) {
+        return dht_nuke_dir(frame, this, loc, tmp);
+    }
+    local->xattr_req = xdata ? dict_ref(xdata) : dict_new();
+
+    if (IA_ISDIR(loc->inode->ia_type)) {
+        local->hashed_subvol = NULL;
+        ret = dht_dir_common_set_remove_xattr(frame, this, loc, NULL, xattr,
+                                              flags, xdata, &op_errno);
+        if (ret)
+            goto err;
+    } else {
+        local->rebalance.xattr = dict_ref(xattr);
+        local->rebalance.flags = flags;
+        local->call_cnt = 1;
 
-                local->rebalance.xattr = dict_ref (xattr);
-                local->rebalance.flags = flags;
-                local->call_cnt = 1;
+        ret = dict_set_int8(local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
 
-                ret = dict_set_int8 (local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
+        STACK_WIND_COOKIE(frame, dht_file_setxattr_cbk, subvol, subvol,
+                          subvol->fops->setxattr, loc, xattr, flags,
+                          local->xattr_req);
+    }
 
-                STACK_WIND_COOKIE (frame, dht_file_setxattr_cbk, subvol,
-                                   subvol, subvol->fops->setxattr, loc, xattr,
-                                   flags, local->xattr_req);
-        }
-
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (setxattr, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(setxattr, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
-
-
 int
-dht_file_removexattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                          int op_ret, int op_errno, dict_t *xdata)
+dht_file_removexattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                         int op_ret, int op_errno, dict_t *xdata)
 {
-        int           ret     = -1;
-        dht_local_t  *local   = NULL;
-        xlator_t     *prev    = NULL;
-        struct iatt  *stbuf   = NULL;
-        inode_t      *inode   = NULL;
-        xlator_t     *subvol1 = NULL, *subvol2 = NULL;
+    int ret = -1;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    struct iatt *stbuf = NULL;
+    inode_t *inode = NULL;
+    xlator_t *subvol1 = NULL, *subvol2 = NULL;
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
 
-        local->op_errno = op_errno;
-
-        if ((local->fop == GF_FOP_FREMOVEXATTR) &&
-            (op_ret == -1) && (op_errno == EBADF) && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
+    local->op_errno = op_errno;
 
-        if ((op_ret == -1) && !dht_inode_missing (op_errno)) {
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-                goto out;
-        }
+    if ((local->fop == GF_FOP_FREMOVEXATTR) && (op_ret == -1) &&
+        (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        if (local->call_cnt != 1)
-                goto out;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
+        goto out;
+    }
 
-        ret = dict_get_bin (xdata, DHT_IATT_IN_XDATA_KEY, (void **) &stbuf);
+    if (local->call_cnt != 1)
+        goto out;
 
-        if ((!op_ret) && !stbuf) {
-                goto out;
-        }
+    ret = dict_get_bin(xdata, DHT_IATT_IN_XDATA_KEY, (void **)&stbuf);
 
-        local->op_ret = 0;
+    if ((!op_ret) && !stbuf) {
+        goto out;
+    }
 
-        local->rebalance.target_op_fn = dht_removexattr2;
-        if (xdata)
-                local->rebalance.xdata = dict_ref (xdata);
+    local->op_ret = 0;
 
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (stbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
+    local->rebalance.target_op_fn = dht_removexattr2;
+    if (xdata)
+        local->rebalance.xdata = dict_ref(xdata);
 
-        /* Phase 1 of migration */
-        if (IS_DHT_MIGRATION_PHASE1 (stbuf)) {
-                inode = (local->fd) ? local->fd->inode : local->loc.inode;
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(stbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
-                ret = dht_inode_ctx_get_mig_info (this, inode,
-                                                  &subvol1, &subvol2);
-                if (!dht_mig_info_is_invalid (local->cached_subvol,
-                                              subvol1, subvol2)) {
-                        dht_removexattr2 (this, subvol2, frame, 0);
-                        return 0;
-                }
+    /* Phase 1 of migration */
+    if (IS_DHT_MIGRATION_PHASE1(stbuf)) {
+        inode = (local->fd) ? local->fd->inode : local->loc.inode;
 
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
+        ret = dht_inode_ctx_get_mig_info(this, inode, &subvol1, &subvol2);
+        if (!dht_mig_info_is_invalid(local->cached_subvol, subvol1, subvol2)) {
+            dht_removexattr2(this, subvol2, frame, 0);
+            return 0;
         }
 
-out:
-        if (local->fop == GF_FOP_REMOVEXATTR) {
-                DHT_STACK_UNWIND (removexattr, frame, op_ret, op_errno, xdata);
-        } else {
-                DHT_STACK_UNWIND (fremovexattr, frame, op_ret, op_errno, xdata);
-        }
-        return 0;
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
+out:
+    if (local->fop == GF_FOP_REMOVEXATTR) {
+        DHT_STACK_UNWIND(removexattr, frame, op_ret, op_errno, xdata);
+    } else {
+        DHT_STACK_UNWIND(fremovexattr, frame, op_ret, op_errno, xdata);
+    }
+    return 0;
 }
 
 int
-dht_removexattr2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame,
-                  int ret)
+dht_removexattr2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int          op_errno = EINVAL;
-
-        if (!frame || !frame->local)
-                goto err;
-
-        local = frame->local;
-        op_errno = local->op_errno;
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
 
-        local->call_cnt = 2; /* This is the second attempt */
+    if (!frame || !frame->local)
+        goto err;
 
-        if (we_are_not_migrating (ret)) {
+    local = frame->local;
+    op_errno = local->op_errno;
 
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (removexattr, frame, local->op_ret,
-                                  local->op_errno, local->rebalance.xdata);
-                return 0;
-        }
+    local->call_cnt = 2; /* This is the second attempt */
 
-        if (subvol == NULL)
-                goto err;
-
-        if (local->fop == GF_FOP_REMOVEXATTR) {
-                STACK_WIND_COOKIE (frame, dht_file_removexattr_cbk, subvol,
-                                   subvol, subvol->fops->removexattr,
-                                   &local->loc, local->key, local->xattr_req);
-        } else {
-                STACK_WIND_COOKIE (frame, dht_file_removexattr_cbk, subvol,
-                                   subvol, subvol->fops->fremovexattr,
-                                   local->fd, local->key, local->xattr_req);
-        }
-
-        return 0;
-
-err:
-        DHT_STACK_UNWIND (removexattr, frame, -1, op_errno, NULL);
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(removexattr, frame, local->op_ret, local->op_errno,
+                         local->rebalance.xdata);
         return 0;
-}
-
-
-int
-dht_removexattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int op_ret, int op_errno, dict_t *xdata)
-{
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
+    }
 
-        local = frame->local;
-        prev = cookie;
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "subvolume %s returned -1",
-                                      prev->name);
-                        goto unlock;
-                }
+    if (subvol == NULL)
+        goto err;
 
-                local->op_ret = 0;
-        }
-unlock:
-        UNLOCK (&frame->lock);
+    if (local->fop == GF_FOP_REMOVEXATTR) {
+        STACK_WIND_COOKIE(frame, dht_file_removexattr_cbk, subvol, subvol,
+                          subvol->fops->removexattr, &local->loc, local->key,
+                          local->xattr_req);
+    } else {
+        STACK_WIND_COOKIE(frame, dht_file_removexattr_cbk, subvol, subvol,
+                          subvol->fops->fremovexattr, local->fd, local->key,
+                          local->xattr_req);
+    }
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                DHT_STACK_UNWIND (removexattr, frame, local->op_ret,
-                                  local->op_errno, NULL);
-        }
+    return 0;
 
-        return 0;
+err:
+    DHT_STACK_UNWIND(removexattr, frame, -1, op_errno, NULL);
+    return 0;
 }
 
-
 int
-dht_removexattr (call_frame_t *frame, xlator_t *this,
-                 loc_t *loc, const char *key, dict_t *xdata)
+dht_removexattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int op_ret, int op_errno, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-        dht_layout_t *layout = NULL;
-        int           call_cnt = 0;
-        dht_conf_t   *conf = NULL;
-        int           ret = 0;
-
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (this->private, err);
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
 
-        conf = this->private;
+    local = frame->local;
+    prev = cookie;
 
-        GF_IF_NATIVE_XATTR_GOTO (conf->wild_xattr_name, key, op_errno, err);
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_REMOVEXATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        layout = local->layout;
-        if (!local->layout) {
-                gf_msg_debug (this->name, 0,
-                              "no layout for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                         prev->name);
+            goto unlock;
         }
-        local->xattr_req = (xdata) ? dict_ref (xdata) : dict_new ();
 
-        local->call_cnt = call_cnt = layout->cnt;
-        local->key = gf_strdup (key);
+        local->op_ret = 0;
+    }
+unlock:
+    UNLOCK(&frame->lock);
+
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        DHT_STACK_UNWIND(removexattr, frame, local->op_ret, local->op_errno,
+                         NULL);
+    }
+
+    return 0;
+}
+
+int
+dht_removexattr(call_frame_t *frame, xlator_t *this, loc_t *loc,
+                const char *key, dict_t *xdata)
+{
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    int call_cnt = 0;
+    dht_conf_t *conf = NULL;
+    int ret = 0;
+
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    GF_IF_NATIVE_XATTR_GOTO(conf->wild_xattr_name, key, op_errno, err);
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_REMOVEXATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!local->layout) {
+        gf_msg_debug(this->name, 0, "no layout for path=%s", loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+    local->xattr_req = (xdata) ? dict_ref(xdata) : dict_new();
+
+    local->call_cnt = call_cnt = layout->cnt;
+    local->key = gf_strdup(key);
+
+    if (key && (strncmp(key, conf->mds_xattr_key, strlen(key)) == 0)) {
+        op_errno = ENOTSUP;
+        goto err;
+    }
+
+    if (IA_ISDIR(loc->inode->ia_type)) {
+        local->hashed_subvol = NULL;
+        ret = dht_dir_common_set_remove_xattr(frame, this, loc, NULL, NULL, 0,
+                                              local->xattr_req, &op_errno);
+        if (ret)
+            goto err;
 
-        if (key &&
-            (strncmp (key, conf->mds_xattr_key, strlen(key)) == 0)) {
-                op_errno = ENOTSUP;
-                goto err;
+    } else {
+        local->call_cnt = 1;
+        ret = dict_set_int8(local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to "
+                   "set dictionary key %s for %s",
+                   DHT_IATT_IN_XDATA_KEY, loc->path);
         }
 
-        if (IA_ISDIR (loc->inode->ia_type)) {
-                local->hashed_subvol = NULL;
-                ret = dht_dir_common_set_remove_xattr (frame, this, loc, NULL,
-                                                       NULL, 0, local->xattr_req, &op_errno);
-                if (ret)
-                        goto err;
+        STACK_WIND_COOKIE(frame, dht_file_removexattr_cbk, subvol, subvol,
+                          subvol->fops->removexattr, loc, key,
+                          local->xattr_req);
+    }
 
-        } else {
-
-                local->call_cnt = 1;
-                ret = dict_set_int8 (local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_DICT_SET_FAILED, "Failed to "
-                                "set dictionary key %s for %s",
-                                DHT_IATT_IN_XDATA_KEY, loc->path);
-                }
-
-                STACK_WIND_COOKIE (frame, dht_file_removexattr_cbk, subvol,
-                                   subvol, subvol->fops->removexattr, loc, key,
-                                   local->xattr_req);
-        }
-
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (removexattr, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(removexattr, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_fremovexattr (call_frame_t *frame, xlator_t *this,
-                  fd_t *fd, const char *key, dict_t *xdata)
+dht_fremovexattr(call_frame_t *frame, xlator_t *this, fd_t *fd, const char *key,
+                 dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-        dht_layout_t *layout = NULL;
-        int           call_cnt = 0;
-        dht_conf_t   *conf = 0;
-        int           ret = 0;
-
-
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        GF_IF_NATIVE_XATTR_GOTO (conf->wild_xattr_name, key, op_errno, err);
-
-        VALIDATE_OR_GOTO (frame, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FREMOVEXATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for inode=%s",
-                              uuid_utoa (fd->inode->gfid));
-                op_errno = EINVAL;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    int call_cnt = 0;
+    dht_conf_t *conf = 0;
+    int ret = 0;
+
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    GF_IF_NATIVE_XATTR_GOTO(conf->wild_xattr_name, key, op_errno, err);
+
+    VALIDATE_OR_GOTO(frame, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FREMOVEXATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for inode=%s",
+                     uuid_utoa(fd->inode->gfid));
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!local->layout) {
+        gf_msg_debug(this->name, 0, "no layout for inode=%s",
+                     uuid_utoa(fd->inode->gfid));
+        op_errno = EINVAL;
+        goto err;
+    }
+    local->xattr_req = xdata ? dict_ref(xdata) : dict_new();
+
+    local->call_cnt = call_cnt = layout->cnt;
+    local->key = gf_strdup(key);
+
+    if (IA_ISDIR(fd->inode->ia_type)) {
+        local->hashed_subvol = NULL;
+        ret = dht_dir_common_set_remove_xattr(frame, this, NULL, fd, NULL, 0,
+                                              local->xattr_req, &op_errno);
+        if (ret)
+            goto err;
 
-        layout = local->layout;
-        if (!local->layout) {
-                gf_msg_debug (this->name, 0,
-                              "no layout for inode=%s",
-                              uuid_utoa (fd->inode->gfid));
-                op_errno = EINVAL;
-                goto err;
+    } else {
+        local->call_cnt = 1;
+        ret = dict_set_int8(local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to "
+                   "set dictionary key %s for fd=%p",
+                   DHT_IATT_IN_XDATA_KEY, fd);
         }
-        local->xattr_req = xdata ? dict_ref (xdata) : dict_new ();
-
-        local->call_cnt = call_cnt = layout->cnt;
-        local->key = gf_strdup (key);
-
-        if (IA_ISDIR (fd->inode->ia_type)) {
-                local->hashed_subvol = NULL;
-                ret = dht_dir_common_set_remove_xattr (frame, this, NULL, fd,
-                                                       NULL, 0, local->xattr_req, &op_errno);
-                if (ret)
-                        goto err;
-
-        } else {
-
-                local->call_cnt = 1;
-                ret = dict_set_int8 (local->xattr_req, DHT_IATT_IN_XDATA_KEY, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_DICT_SET_FAILED, "Failed to "
-                                "set dictionary key %s for fd=%p",
-                                DHT_IATT_IN_XDATA_KEY, fd);
-                }
 
-                STACK_WIND_COOKIE (frame, dht_file_removexattr_cbk, subvol,
-                                   subvol, subvol->fops->fremovexattr, fd, key,
-                                   local->xattr_req);
-        }
+        STACK_WIND_COOKIE(frame, dht_file_removexattr_cbk, subvol, subvol,
+                          subvol->fops->fremovexattr, fd, key,
+                          local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fremovexattr, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fremovexattr, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fd_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-            int op_ret, int op_errno, fd_t *fd, dict_t *xdata)
+dht_fd_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+           int op_errno, fd_t *fd, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
 
-        local = frame->local;
-        prev = cookie;
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "subvolume %s returned -1",
-                                      prev->name);
-                        goto unlock;
-                }
+    local = frame->local;
+    prev = cookie;
 
-                local->op_ret = 0;
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                         prev->name);
+            goto unlock;
         }
+
+        local->op_ret = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt))
-                DHT_STACK_UNWIND (open, frame, local->op_ret, local->op_errno,
-                                  local->fd, NULL);
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt))
+        DHT_STACK_UNWIND(open, frame, local->op_ret, local->op_errno, local->fd,
+                         NULL);
 
-        return 0;
+    return 0;
 }
 
 /*
  * dht_normalize_stats -
  */
 void
-dht_normalize_stats (struct statvfs *buf, unsigned long bsize,
-                     unsigned long frsize)
+dht_normalize_stats(struct statvfs *buf, unsigned long bsize,
+                    unsigned long frsize)
 {
-        double factor = 0;
+    double factor = 0;
 
-        if (buf->f_bsize != bsize) {
-                buf->f_bsize = bsize;
-        }
-
-        if (buf->f_frsize != frsize) {
-                factor = ((double) buf->f_frsize) / frsize;
-                buf->f_frsize = frsize;
-                buf->f_blocks = (fsblkcnt_t) (factor * buf->f_blocks);
-                buf->f_bfree  = (fsblkcnt_t) (factor * buf->f_bfree);
-                buf->f_bavail = (fsblkcnt_t) (factor * buf->f_bavail);
+    if (buf->f_bsize != bsize) {
+        buf->f_bsize = bsize;
+    }
 
-        }
+    if (buf->f_frsize != frsize) {
+        factor = ((double)buf->f_frsize) / frsize;
+        buf->f_frsize = frsize;
+        buf->f_blocks = (fsblkcnt_t)(factor * buf->f_blocks);
+        buf->f_bfree = (fsblkcnt_t)(factor * buf->f_bfree);
+        buf->f_bavail = (fsblkcnt_t)(factor * buf->f_bavail);
+    }
 }
 
 int
-dht_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, struct statvfs *statvfs,
-                dict_t *xdata)
+dht_statfs_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+               int op_errno, struct statvfs *statvfs, dict_t *xdata)
 {
+    gf_boolean_t event = _gf_false;
+    qdstatfs_action_t action = qdstatfs_action_OFF;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    int bsize = 0;
+    int frsize = 0;
+    GF_UNUSED int ret = 0;
+    unsigned long new_usage = 0;
+    unsigned long cur_usage = 0;
 
-        gf_boolean_t            event              = _gf_false;
-        qdstatfs_action_t       action             = qdstatfs_action_OFF;
-        dht_local_t *           local              = NULL;
-        int                     this_call_cnt      = 0;
-        int                     bsize              = 0;
-        int                     frsize             = 0;
-        GF_UNUSED int           ret                = 0;
-        unsigned long           new_usage          = 0;
-        unsigned long           cur_usage          = 0;
+    local = frame->local;
+    GF_ASSERT(local);
 
-        local = frame->local;
-        GF_ASSERT (local);
+    if (xdata)
+        ret = dict_get_int8(xdata, "quota-deem-statfs", (int8_t *)&event);
 
-        if (xdata)
-                ret = dict_get_int8 (xdata, "quota-deem-statfs",
-                                     (int8_t *)&event);
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        goto unlock;
-                }
-                if (!statvfs) {
-                        op_errno = EINVAL;
-                        local->op_ret = -1;
-                        goto unlock;
-                }
-                local->op_ret = 0;
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            goto unlock;
+        }
+        if (!statvfs) {
+            op_errno = EINVAL;
+            local->op_ret = -1;
+            goto unlock;
+        }
+        local->op_ret = 0;
 
-                if (local->quota_deem_statfs) {
-                        if (event == _gf_true) {
-                                action = qdstatfs_action_COMPARE;
-                        } else {
-                                action = qdstatfs_action_NEGLECT;
-                        }
-                } else {
-                        if (event == _gf_true) {
-                                action = qdstatfs_action_REPLACE;
-                                local->quota_deem_statfs = _gf_true;
-                        }
-                }
+        if (local->quota_deem_statfs) {
+            if (event == _gf_true) {
+                action = qdstatfs_action_COMPARE;
+            } else {
+                action = qdstatfs_action_NEGLECT;
+            }
+        } else {
+            if (event == _gf_true) {
+                action = qdstatfs_action_REPLACE;
+                local->quota_deem_statfs = _gf_true;
+            }
+        }
 
-                if (local->quota_deem_statfs) {
-                        switch (action) {
-                        case qdstatfs_action_NEGLECT:
-                                goto unlock;
-
-                        case qdstatfs_action_REPLACE:
-                                local->statvfs = *statvfs;
-                                goto unlock;
-
-                        case qdstatfs_action_COMPARE:
-                                new_usage = statvfs->f_blocks -
-                                             statvfs->f_bfree;
-                                cur_usage = local->statvfs.f_blocks -
-                                             local->statvfs.f_bfree;
-
-                                /* Take the max of the usage from subvols */
-                                if (new_usage >= cur_usage)
-                                        local->statvfs = *statvfs;
-                                goto unlock;
-
-                        default:
-                                break;
-                        }
-                }
+        if (local->quota_deem_statfs) {
+            switch (action) {
+                case qdstatfs_action_NEGLECT:
+                    goto unlock;
 
-                if (local->statvfs.f_bsize != 0) {
-                        bsize = max(local->statvfs.f_bsize, statvfs->f_bsize);
-                        frsize = max(local->statvfs.f_frsize, statvfs->f_frsize);
-                        dht_normalize_stats(&local->statvfs, bsize, frsize);
-                        dht_normalize_stats(statvfs, bsize, frsize);
-                } else {
-                        local->statvfs.f_bsize    = statvfs->f_bsize;
-                        local->statvfs.f_frsize   = statvfs->f_frsize;
-                }
+                case qdstatfs_action_REPLACE:
+                    local->statvfs = *statvfs;
+                    goto unlock;
 
-                local->statvfs.f_blocks  += statvfs->f_blocks;
-                local->statvfs.f_bfree   += statvfs->f_bfree;
-                local->statvfs.f_bavail  += statvfs->f_bavail;
-                local->statvfs.f_files   += statvfs->f_files;
-                local->statvfs.f_ffree   += statvfs->f_ffree;
-                local->statvfs.f_favail  += statvfs->f_favail;
-                local->statvfs.f_fsid     = statvfs->f_fsid;
-                local->statvfs.f_flag     = statvfs->f_flag;
-                local->statvfs.f_namemax  = statvfs->f_namemax;
+                case qdstatfs_action_COMPARE:
+                    new_usage = statvfs->f_blocks - statvfs->f_bfree;
+                    cur_usage = local->statvfs.f_blocks -
+                                local->statvfs.f_bfree;
 
+                    /* Take the max of the usage from subvols */
+                    if (new_usage >= cur_usage)
+                        local->statvfs = *statvfs;
+                    goto unlock;
 
+                default:
+                    break;
+            }
         }
-unlock:
-        UNLOCK (&frame->lock);
 
+        if (local->statvfs.f_bsize != 0) {
+            bsize = max(local->statvfs.f_bsize, statvfs->f_bsize);
+            frsize = max(local->statvfs.f_frsize, statvfs->f_frsize);
+            dht_normalize_stats(&local->statvfs, bsize, frsize);
+            dht_normalize_stats(statvfs, bsize, frsize);
+        } else {
+            local->statvfs.f_bsize = statvfs->f_bsize;
+            local->statvfs.f_frsize = statvfs->f_frsize;
+        }
+
+        local->statvfs.f_blocks += statvfs->f_blocks;
+        local->statvfs.f_bfree += statvfs->f_bfree;
+        local->statvfs.f_bavail += statvfs->f_bavail;
+        local->statvfs.f_files += statvfs->f_files;
+        local->statvfs.f_ffree += statvfs->f_ffree;
+        local->statvfs.f_favail += statvfs->f_favail;
+        local->statvfs.f_fsid = statvfs->f_fsid;
+        local->statvfs.f_flag = statvfs->f_flag;
+        local->statvfs.f_namemax = statvfs->f_namemax;
+    }
+unlock:
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt))
-                DHT_STACK_UNWIND (statfs, frame, local->op_ret, local->op_errno,
-                                  &local->statvfs, xdata);
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt))
+        DHT_STACK_UNWIND(statfs, frame, local->op_ret, local->op_errno,
+                         &local->statvfs, xdata);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+dht_statfs(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
 {
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           op_errno = -1;
-        int           i = -1;
-        inode_t          *inode         = NULL;
-        inode_table_t    *itable        = NULL;
-        uuid_t            root_gfid     = {0, };
-        loc_t         newloc = {0, };
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = -1;
+    int i = -1;
+    inode_t *inode = NULL;
+    inode_table_t *itable = NULL;
+    uuid_t root_gfid = {
+        0,
+    };
+    loc_t newloc = {
+        0,
+    };
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (this->private, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        conf = this->private;
+    conf = this->private;
 
-        local = dht_local_init (frame, NULL, NULL, GF_FOP_STATFS);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        if (loc->inode && !IA_ISDIR (loc->inode->ia_type)) {
-                itable = loc->inode->table;
-                if (!itable) {
-                        op_errno = EINVAL;
-                        goto err;
-                }
+    local = dht_local_init(frame, NULL, NULL, GF_FOP_STATFS);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-                loc = &local->loc2;
-                root_gfid[15] = 1;
+    if (loc->inode && !IA_ISDIR(loc->inode->ia_type)) {
+        itable = loc->inode->table;
+        if (!itable) {
+            op_errno = EINVAL;
+            goto err;
+        }
 
-                inode = inode_find (itable, root_gfid);
-                if (!inode) {
-                        op_errno = EINVAL;
-                        goto err;
-                }
+        loc = &local->loc2;
+        root_gfid[15] = 1;
 
-                dht_build_root_loc (inode, &newloc);
-                loc = &newloc;
+        inode = inode_find(itable, root_gfid);
+        if (!inode) {
+            op_errno = EINVAL;
+            goto err;
         }
 
-        local->call_cnt = conf->subvolume_cnt;
+        dht_build_root_loc(inode, &newloc);
+        loc = &newloc;
+    }
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                STACK_WIND (frame, dht_statfs_cbk,
-                            conf->subvolumes[i],
-                            conf->subvolumes[i]->fops->statfs, loc,
-                            xdata);
-        }
-        return 0;
+    local->call_cnt = conf->subvolume_cnt;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        STACK_WIND(frame, dht_statfs_cbk, conf->subvolumes[i],
+                   conf->subvolumes[i]->fops->statfs, loc, xdata);
+    }
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (statfs, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(statfs, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_opendir (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd,
-             dict_t *xdata)
+dht_opendir(call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd,
+            dict_t *xdata)
 {
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           op_errno = -1;
-        int           i = -1;
-        int           ret = 0;
-        gf_boolean_t  new_xdata = _gf_false;
-        xlator_t    **subvolumes = NULL;
-        int           call_count = 0;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, loc, fd, GF_FOP_OPENDIR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-        local->first_up_subvol = dht_first_up_subvol (this);
-
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = -1;
+    int i = -1;
+    int ret = 0;
+    gf_boolean_t new_xdata = _gf_false;
+    xlator_t **subvolumes = NULL;
+    int call_count = 0;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, loc, fd, GF_FOP_OPENDIR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+    local->first_up_subvol = dht_first_up_subvol(this);
+
+    if (!xdata) {
+        xdata = dict_new();
         if (!xdata) {
-                xdata = dict_new ();
-                if (!xdata) {
-                        op_errno = ENOMEM;
-                        goto err;
-                }
-                new_xdata = _gf_true;
+            op_errno = ENOMEM;
+            goto err;
+        }
+        new_xdata = _gf_true;
+    }
+
+    ret = dict_set_uint32(xdata, conf->link_xattr_name, 256);
+    if (ret)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value : key = %s",
+               conf->link_xattr_name);
+
+    /* dht_readdirp will wind to all subvols so open has to be sent to
+     * all subvols whether or not conf->local_subvols is set */
+
+    call_count = local->call_cnt = conf->subvolume_cnt;
+    subvolumes = conf->subvolumes;
+
+    /* In case of parallel-readdir, the readdir-ahead will be loaded
+     * below dht, in this case, if we want to enable or disable SKIP_DIRs
+     * it has to be done in opendir, so that prefetching logic in
+     * readdir-ahead, honors it */
+    for (i = 0; i < call_count; i++) {
+        if (conf->readdir_optimize == _gf_true) {
+            if (subvolumes[i] != local->first_up_subvol) {
+                ret = dict_set_int32(xdata, GF_READDIR_SKIP_DIRS, 1);
+                if (ret)
+                    gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                           "Failed to set dictionary"
+                           " value :key = %s, ret:%d",
+                           GF_READDIR_SKIP_DIRS, ret);
+            }
         }
 
-        ret = dict_set_uint32 (xdata, conf->link_xattr_name, 256);
-        if (ret)
-                gf_msg (this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value : key = %s",
-                        conf->link_xattr_name);
-
-        /* dht_readdirp will wind to all subvols so open has to be sent to
-         * all subvols whether or not conf->local_subvols is set */
-
-        call_count = local->call_cnt = conf->subvolume_cnt;
-        subvolumes = conf->subvolumes;
-
-        /* In case of parallel-readdir, the readdir-ahead will be loaded
-         * below dht, in this case, if we want to enable or disable SKIP_DIRs
-         * it has to be done in opendir, so that prefetching logic in
-         * readdir-ahead, honors it */
-        for (i = 0; i < call_count; i++) {
-                if (conf->readdir_optimize == _gf_true) {
-                        if (subvolumes[i] != local->first_up_subvol) {
-                                ret = dict_set_int32 (xdata,
-                                                      GF_READDIR_SKIP_DIRS, 1);
-                                if (ret)
-                                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                                DHT_MSG_DICT_SET_FAILED,
-                                                "Failed to set dictionary"
-                                                " value :key = %s, ret:%d",
-                                                GF_READDIR_SKIP_DIRS, ret);
-                                }
-                }
+        STACK_WIND_COOKIE(frame, dht_fd_cbk, subvolumes[i], subvolumes[i],
+                          subvolumes[i]->fops->opendir, loc, fd, xdata);
+        dict_del(xdata, GF_READDIR_SKIP_DIRS);
+    }
 
-                STACK_WIND_COOKIE (frame, dht_fd_cbk,
-                                   subvolumes[i],
-                                   subvolumes[i],
-                                   subvolumes[i]->fops->opendir,
-                                   loc, fd, xdata);
-                dict_del (xdata, GF_READDIR_SKIP_DIRS);
-        }
+    if (new_xdata)
+        dict_unref(xdata);
 
-        if (new_xdata)
-                dict_unref (xdata);
-
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (opendir, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(opendir, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 /* dht_readdirp_cbk creates a new dentry and dentry->inode is not assigned.
    This functions assigns an inode if all of the following conditions are true:
 
@@ -6937,3807 +6504,3589 @@ err:
 */
 
 void
-dht_populate_inode_for_dentry (xlator_t *this, xlator_t *subvol,
-                               gf_dirent_t *entry, gf_dirent_t *orig_entry)
+dht_populate_inode_for_dentry(xlator_t *this, xlator_t *subvol,
+                              gf_dirent_t *entry, gf_dirent_t *orig_entry)
 {
-        dht_layout_t *layout = NULL;
-        int           ret    = 0;
-        loc_t         loc    = {0, };
-
-        if (gf_uuid_is_null (orig_entry->d_stat.ia_gfid)) {
-                /* this skips the '..' entry for the root of the volume */
-                return;
-        }
+    dht_layout_t *layout = NULL;
+    int ret = 0;
+    loc_t loc = {
+        0,
+    };
 
-        gf_uuid_copy (loc.gfid, orig_entry->d_stat.ia_gfid);
-        loc.inode = inode_ref (orig_entry->inode);
+    if (gf_uuid_is_null(orig_entry->d_stat.ia_gfid)) {
+        /* this skips the '..' entry for the root of the volume */
+        return;
+    }
 
-        if (is_revalidate (&loc)) {
-                goto out;
-        }
+    gf_uuid_copy(loc.gfid, orig_entry->d_stat.ia_gfid);
+    loc.inode = inode_ref(orig_entry->inode);
 
-        layout = dht_layout_new (this, 1);
-        if (!layout)
-                goto out;
+    if (is_revalidate(&loc)) {
+        goto out;
+    }
 
-        ret = dht_layout_merge (this, layout, subvol, 0, 0, orig_entry->dict);
-        if (!ret) {
-                ret = dht_layout_normalize (this, &loc, layout);
-                if (ret == 0) {
-                        dht_layout_set (this, orig_entry->inode, layout);
-                        entry->inode = inode_ref (orig_entry->inode);
-                        layout = NULL;
-                }
+    layout = dht_layout_new(this, 1);
+    if (!layout)
+        goto out;
 
+    ret = dht_layout_merge(this, layout, subvol, 0, 0, orig_entry->dict);
+    if (!ret) {
+        ret = dht_layout_normalize(this, &loc, layout);
+        if (ret == 0) {
+            dht_layout_set(this, orig_entry->inode, layout);
+            entry->inode = inode_ref(orig_entry->inode);
+            layout = NULL;
         }
+    }
 
-        if (layout)
-                dht_layout_unref (this, layout);
+    if (layout)
+        dht_layout_unref(this, layout);
 
 out:
-        loc_wipe (&loc);
-        return;
+    loc_wipe(&loc);
+    return;
 }
 
-
 /* Posix returns op_errno = ENOENT to indicate that there are no more entries
  */
 int
-dht_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
-                  int op_errno, gf_dirent_t *orig_entries, dict_t *xdata)
-{
-        dht_local_t             *local = NULL;
-        gf_dirent_t              entries;
-        gf_dirent_t             *orig_entry = NULL;
-        gf_dirent_t             *entry = NULL;
-        xlator_t                *prev = NULL;
-        xlator_t                *next_subvol = NULL;
-        off_t                    next_offset = 0;
-        int                      count = 0;
-        dht_layout_t            *layout = NULL;
-        dht_conf_t              *conf   = NULL;
-        dht_methods_t           *methods = NULL;
-        xlator_t                *subvol = 0;
-        xlator_t                *hashed_subvol = 0;
-        int                      ret    = 0;
-        int                      readdir_optimize = 0;
-        inode_table_t           *itable = NULL;
-        inode_t                 *inode = NULL;
-        gf_boolean_t             skip_hashed_check = _gf_false;
-
-        INIT_LIST_HEAD (&entries.list);
-
-        prev = cookie;
-        local = frame->local;
-        itable = local->fd ? local->fd->inode->table : NULL;
+dht_readdirp_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, gf_dirent_t *orig_entries, dict_t *xdata)
+{
+    dht_local_t *local = NULL;
+    gf_dirent_t entries;
+    gf_dirent_t *orig_entry = NULL;
+    gf_dirent_t *entry = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *next_subvol = NULL;
+    off_t next_offset = 0;
+    int count = 0;
+    dht_layout_t *layout = NULL;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
+    xlator_t *subvol = 0;
+    xlator_t *hashed_subvol = 0;
+    int ret = 0;
+    int readdir_optimize = 0;
+    inode_table_t *itable = NULL;
+    inode_t *inode = NULL;
+    gf_boolean_t skip_hashed_check = _gf_false;
+
+    INIT_LIST_HEAD(&entries.list);
+
+    prev = cookie;
+    local = frame->local;
+    itable = local->fd ? local->fd->inode->table : NULL;
+
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, unwind);
+
+    methods = &(conf->methods);
+
+    if (op_ret <= 0) {
+        goto done;
+    }
+
+    /* Why aren't we skipping DHT entirely in case of a single subvol?
+     * Because if this was a larger volume earlier and all but one subvol
+     * was removed, there might be stale linkto files on the subvol.
+     */
+    if (conf->subvolume_cnt == 1) {
+        /* return all directory and file entries except
+         * linkto files for a single child DHT
+         */
+        skip_hashed_check = _gf_true;
+    }
 
-        conf  = this->private;
-        GF_VALIDATE_OR_GOTO(this->name, conf, unwind);
+    if (!local->layout)
+        local->layout = dht_layout_get(this, local->fd->inode);
 
-        methods = &(conf->methods);
+    layout = local->layout;
 
-        if (op_ret <= 0) {
-                goto done;
-        }
+    /* We have seen crashes in while running "rm -rf" on tier volumes
+       when the layout was NULL on the hot tier. This will skip the
+       entries on the subvol without a layout, hence preventing the crash
+       but rmdir might fail with "directory not empty" errors*/
 
-        /* Why aren't we skipping DHT entirely in case of a single subvol?
-         * Because if this was a larger volume earlier and all but one subvol
-         * was removed, there might be stale linkto files on the subvol.
-         */
-        if (conf->subvolume_cnt == 1) {
-                /* return all directory and file entries except
-                 * linkto files for a single child DHT
-                 */
-                skip_hashed_check = _gf_true;
-        }
-
-        if (!local->layout)
-                local->layout = dht_layout_get (this, local->fd->inode);
+    if (layout == NULL)
+        goto done;
 
-        layout = local->layout;
+    if (conf->readdir_optimize == _gf_true)
+        readdir_optimize = 1;
 
-        /* We have seen crashes in while running "rm -rf" on tier volumes
-           when the layout was NULL on the hot tier. This will skip the
-           entries on the subvol without a layout, hence preventing the crash
-           but rmdir might fail with "directory not empty" errors*/
-
-        if (layout == NULL)
-                goto done;
+    gf_msg_debug(this->name, 0, "Processing entries from %s", prev->name);
 
-        if (conf->readdir_optimize == _gf_true)
-                readdir_optimize = 1;
+    list_for_each_entry(orig_entry, (&orig_entries->list), list)
+    {
+        next_offset = orig_entry->d_off;
 
-        gf_msg_debug (this->name, 0, "Processing entries from %s",
-                      prev->name);
+        gf_msg_debug(this->name, 0, "%s: entry = %s, type = %d", prev->name,
+                     orig_entry->d_name, orig_entry->d_type);
 
-        list_for_each_entry (orig_entry, (&orig_entries->list), list) {
-                next_offset = orig_entry->d_off;
+        if (IA_ISINVAL(orig_entry->d_stat.ia_type)) {
+            /*stat failed somewhere- ignore this entry*/
+            gf_msg_debug(this->name, EINVAL,
+                         "Invalid stat, ignoring entry "
+                         "%s gfid %s",
+                         orig_entry->d_name,
+                         uuid_utoa(orig_entry->d_stat.ia_gfid));
+            continue;
+        }
 
-                gf_msg_debug (this->name, 0, "%s: entry = %s, type = %d",
-                              prev->name, orig_entry->d_name,
-                              orig_entry->d_type);
+        if (check_is_linkfile(NULL, (&orig_entry->d_stat), orig_entry->dict,
+                              conf->link_xattr_name)) {
+            gf_msg_debug(this->name, 0, "%s: %s is a linkto file", prev->name,
+                         orig_entry->d_name);
+            continue;
+        }
 
-                if (IA_ISINVAL(orig_entry->d_stat.ia_type)) {
-                        /*stat failed somewhere- ignore this entry*/
-                        gf_msg_debug (this->name, EINVAL,
-                                      "Invalid stat, ignoring entry "
-                                      "%s gfid %s", orig_entry->d_name,
-                                      uuid_utoa (orig_entry->d_stat.ia_gfid));
-                        continue;
-                }
+        if (skip_hashed_check) {
+            goto list;
+        }
 
-                if (check_is_linkfile (NULL, (&orig_entry->d_stat),
-                                       orig_entry->dict,
-                                       conf->link_xattr_name)) {
-                        gf_msg_debug (this->name, 0, "%s: %s is a linkto file",
-                                      prev->name, orig_entry->d_name);
-                        continue;
-                }
+        if (check_is_dir(NULL, (&orig_entry->d_stat), NULL)) {
+            /*Directory entries filtering :
+             * a) If rebalance is running, pick from first_up_subvol
+             * b) (rebalance not running)hashed subvolume is NULL or
+             * down then filter in first_up_subvolume. Other wise the
+             * corresponding hashed subvolume will take care of the
+             * directory entry.
+             */
+            if (readdir_optimize) {
+                if (prev == local->first_up_subvol)
+                    goto list;
+                else
+                    continue;
+            }
 
-                if (skip_hashed_check) {
-                        goto list;
-                }
+            hashed_subvol = methods->layout_search(this, layout,
+                                                   orig_entry->d_name);
 
-                if (check_is_dir (NULL, (&orig_entry->d_stat), NULL)) {
+            if (prev == hashed_subvol)
+                goto list;
+            if ((hashed_subvol && dht_subvol_status(conf, hashed_subvol)) ||
+                (prev != local->first_up_subvol))
+                continue;
 
-                /*Directory entries filtering :
-                 * a) If rebalance is running, pick from first_up_subvol
-                 * b) (rebalance not running)hashed subvolume is NULL or
-                 * down then filter in first_up_subvolume. Other wise the
-                 * corresponding hashed subvolume will take care of the
-                 * directory entry.
-                 */
-                        if (readdir_optimize) {
-                                if (prev == local->first_up_subvol)
-                                        goto list;
-                                else
-                                        continue;
+            goto list;
+        }
 
-                        }
+    list:
+        entry = gf_dirent_for_name(orig_entry->d_name);
+        if (!entry) {
+            goto unwind;
+        }
 
-                        hashed_subvol = methods->layout_search (this, layout,
-                                                         orig_entry->d_name);
+        /* Do this if conf->search_unhashed is set to "auto" */
+        if (conf->search_unhashed == GF_DHT_LOOKUP_UNHASHED_AUTO) {
+            subvol = methods->layout_search(this, layout, orig_entry->d_name);
+            if (!subvol || (subvol != prev)) {
+                /* TODO: Count the number of entries which need
+                   linkfile to prove its existence in fs */
+                layout->search_unhashed++;
+            }
+        }
 
-                        if (prev == hashed_subvol)
-                                goto list;
-                        if ((hashed_subvol
-                             && dht_subvol_status (conf, hashed_subvol))
-                            || (prev != local->first_up_subvol))
-                                continue;
+        entry->d_off = orig_entry->d_off;
+        entry->d_stat = orig_entry->d_stat;
+        entry->d_ino = orig_entry->d_ino;
+        entry->d_type = orig_entry->d_type;
+        entry->d_len = orig_entry->d_len;
 
-                        goto list;
-                }
+        if (orig_entry->dict)
+            entry->dict = dict_ref(orig_entry->dict);
 
-list:
-                entry = gf_dirent_for_name (orig_entry->d_name);
-                if (!entry) {
-                        goto unwind;
-                }
+        /* making sure we set the inode ctx right with layout,
+           currently possible only for non-directories, so for
+           directories don't set entry inodes */
+        if (IA_ISDIR(entry->d_stat.ia_type)) {
+            entry->d_stat.ia_blocks = DHT_DIR_STAT_BLOCKS;
+            entry->d_stat.ia_size = DHT_DIR_STAT_SIZE;
+            if (orig_entry->inode) {
+                dht_inode_ctx_time_update(orig_entry->inode, this,
+                                          &entry->d_stat, 1);
 
-                /* Do this if conf->search_unhashed is set to "auto" */
-                if (conf->search_unhashed == GF_DHT_LOOKUP_UNHASHED_AUTO) {
-                        subvol = methods->layout_search (this, layout,
-                                                         orig_entry->d_name);
-                        if (!subvol || (subvol != prev)) {
-                                /* TODO: Count the number of entries which need
-                                   linkfile to prove its existence in fs */
-                                layout->search_unhashed++;
-                        }
+                if (conf->subvolume_cnt == 1) {
+                    dht_populate_inode_for_dentry(this, prev, entry,
+                                                  orig_entry);
                 }
-
-                entry->d_off  = orig_entry->d_off;
-                entry->d_stat = orig_entry->d_stat;
-                entry->d_ino  = orig_entry->d_ino;
-                entry->d_type = orig_entry->d_type;
-                entry->d_len  = orig_entry->d_len;
-
-                if (orig_entry->dict)
-                        entry->dict = dict_ref (orig_entry->dict);
-
-                /* making sure we set the inode ctx right with layout,
-                   currently possible only for non-directories, so for
-                   directories don't set entry inodes */
-                if (IA_ISDIR(entry->d_stat.ia_type)) {
-                        entry->d_stat.ia_blocks = DHT_DIR_STAT_BLOCKS;
-                        entry->d_stat.ia_size = DHT_DIR_STAT_SIZE;
-                        if (orig_entry->inode) {
-                                dht_inode_ctx_time_update (orig_entry->inode,
-                                                           this, &entry->d_stat,
-                                                           1);
-
-                                if (conf->subvolume_cnt == 1) {
-                                        dht_populate_inode_for_dentry (this,
-                                                                       prev,
-                                                                       entry,
-                                                                       orig_entry);
-                                }
-
-                        }
-                } else {
-                        if (orig_entry->inode) {
-                                ret = dht_layout_preset (this, prev,
-                                                         orig_entry->inode);
-                                if (ret)
-                                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                                DHT_MSG_LAYOUT_SET_FAILED,
-                                                "failed to link the layout "
-                                                "in inode for %s",
-                                                orig_entry->d_name);
-
-                                entry->inode = inode_ref (orig_entry->inode);
-                        } else if (itable) {
-                                /*
-                                 * orig_entry->inode might be null if any upper
-                                 * layer xlators below client set to null, to
-                                 * force a lookup on the inode even if the inode
-                                 * is present in the inode table. In that case
-                                 * we just update the ctx to make sure we didn't
-                                 * missed anything.
-                                 */
-                                inode = inode_find (itable,
-                                                    orig_entry->d_stat.ia_gfid);
-                                if (inode) {
-                                        ret = dht_layout_preset
-                                                            (this, prev,
-                                                             inode);
-                                        if (ret)
-                                                gf_msg (this->name,
-                                                     GF_LOG_WARNING, 0,
-                                                     DHT_MSG_LAYOUT_SET_FAILED,
-                                                     "failed to link the layout"
-                                                     " in inode for %s",
-                                                     orig_entry->d_name);
-                                        inode_unref (inode);
-                                        inode = NULL;
-                                }
-                        }
+            }
+        } else {
+            if (orig_entry->inode) {
+                ret = dht_layout_preset(this, prev, orig_entry->inode);
+                if (ret)
+                    gf_msg(this->name, GF_LOG_WARNING, 0,
+                           DHT_MSG_LAYOUT_SET_FAILED,
+                           "failed to link the layout "
+                           "in inode for %s",
+                           orig_entry->d_name);
+
+                entry->inode = inode_ref(orig_entry->inode);
+            } else if (itable) {
+                /*
+                 * orig_entry->inode might be null if any upper
+                 * layer xlators below client set to null, to
+                 * force a lookup on the inode even if the inode
+                 * is present in the inode table. In that case
+                 * we just update the ctx to make sure we didn't
+                 * missed anything.
+                 */
+                inode = inode_find(itable, orig_entry->d_stat.ia_gfid);
+                if (inode) {
+                    ret = dht_layout_preset(this, prev, inode);
+                    if (ret)
+                        gf_msg(this->name, GF_LOG_WARNING, 0,
+                               DHT_MSG_LAYOUT_SET_FAILED,
+                               "failed to link the layout"
+                               " in inode for %s",
+                               orig_entry->d_name);
+                    inode_unref(inode);
+                    inode = NULL;
                 }
+            }
+        }
 
-                gf_msg_debug (this->name, 0, "%s: Adding entry = %s",
-                              prev->name, entry->d_name);
+        gf_msg_debug(this->name, 0, "%s: Adding entry = %s", prev->name,
+                     entry->d_name);
 
-                list_add_tail (&entry->list, &entries.list);
-                count++;
-        }
+        list_add_tail(&entry->list, &entries.list);
+        count++;
+    }
 
 done:
 
-        /* We need to ensure that only the last subvolume's end-of-directory
-         * notification is respected so that directory reading does not stop
-         * before all subvolumes have been read. That could happen because the
-         * posix for each subvolume sends a ENOENT on end-of-directory but in
-         * distribute we're not concerned only with a posix's view of the
-         * directory but the aggregated namespace' view of the directory.
-         * Possible values:
-         * op_ret == 0 and op_errno != 0
-         *   if op_errno != ENOENT : Error.Unwind.
-         *   if op_errno == ENOENT : There are no more entries on this subvol.
-         *                           Move to the next one.
-         * op_ret > 0 and count == 0 :
-         *    The subvol returned entries to dht but all were stripped out.
-         *    For example, if they were linkto files or dirs where
-         *    hashed_subvol != prev. Try to get some entries by winding
-         *    to the next subvol. This can be dangerous if parallel readdir
-         *    is enabled as it grows the stack.
-         *
-         * op_ret > 0 and count > 0:
-         *   We found some entries. Unwind even if the buffer is not full.
-         *
+    /* We need to ensure that only the last subvolume's end-of-directory
+     * notification is respected so that directory reading does not stop
+     * before all subvolumes have been read. That could happen because the
+     * posix for each subvolume sends a ENOENT on end-of-directory but in
+     * distribute we're not concerned only with a posix's view of the
+     * directory but the aggregated namespace' view of the directory.
+     * Possible values:
+     * op_ret == 0 and op_errno != 0
+     *   if op_errno != ENOENT : Error.Unwind.
+     *   if op_errno == ENOENT : There are no more entries on this subvol.
+     *                           Move to the next one.
+     * op_ret > 0 and count == 0 :
+     *    The subvol returned entries to dht but all were stripped out.
+     *    For example, if they were linkto files or dirs where
+     *    hashed_subvol != prev. Try to get some entries by winding
+     *    to the next subvol. This can be dangerous if parallel readdir
+     *    is enabled as it grows the stack.
+     *
+     * op_ret > 0 and count > 0:
+     *   We found some entries. Unwind even if the buffer is not full.
+     *
+     */
+
+    op_ret = count;
+    if (count == 0) {
+        /* non-zero next_offset means that
+         * EOF is not yet hit on the current subvol
          */
+        if ((next_offset == 0) || (op_errno == ENOENT)) {
+            next_offset = 0;
+            next_subvol = dht_subvol_next(this, prev);
+        } else {
+            next_subvol = prev;
+        }
 
-        op_ret = count;
-        if (count == 0) {
-                /* non-zero next_offset means that
-                 * EOF is not yet hit on the current subvol
-                 */
-                if ((next_offset == 0) || (op_errno == ENOENT)) {
-                        next_offset = 0;
-                        next_subvol = dht_subvol_next (this, prev);
-                } else {
-                        next_subvol = prev;
-                }
-
-                if (!next_subvol) {
-                        goto unwind;
-                }
-
-                if (conf->readdir_optimize == _gf_true) {
-                        if (next_subvol != local->first_up_subvol) {
-                                ret = dict_set_int32 (local->xattr,
-                                                      GF_READDIR_SKIP_DIRS, 1);
-                                if (ret)
-                                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                                DHT_MSG_DICT_SET_FAILED,
-                                                "Failed to set dictionary value"
-                                                ":key = %s",
-                                                GF_READDIR_SKIP_DIRS );
-                        } else {
-                                 dict_del (local->xattr,
-                                           GF_READDIR_SKIP_DIRS);
-                        }
-                }
+        if (!next_subvol) {
+            goto unwind;
+        }
 
-                STACK_WIND_COOKIE (frame, dht_readdirp_cbk, next_subvol,
-                                   next_subvol, next_subvol->fops->readdirp,
-                                   local->fd, local->size,
-                                   next_offset, local->xattr);
-                return 0;
+        if (conf->readdir_optimize == _gf_true) {
+            if (next_subvol != local->first_up_subvol) {
+                ret = dict_set_int32(local->xattr, GF_READDIR_SKIP_DIRS, 1);
+                if (ret)
+                    gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                           "Failed to set dictionary value"
+                           ":key = %s",
+                           GF_READDIR_SKIP_DIRS);
+            } else {
+                dict_del(local->xattr, GF_READDIR_SKIP_DIRS);
+            }
         }
 
+        STACK_WIND_COOKIE(frame, dht_readdirp_cbk, next_subvol, next_subvol,
+                          next_subvol->fops->readdirp, local->fd, local->size,
+                          next_offset, local->xattr);
+        return 0;
+    }
+
 unwind:
-        /* We need to ensure that only the last subvolume's end-of-directory
-         * notification is respected so that directory reading does not stop
-         * before all subvolumes have been read. That could happen because the
-         * posix for each subvolume sends a ENOENT on end-of-directory but in
-         * distribute we're not concerned only with a posix's view of the
-         * directory but the aggregated namespace' view of the directory.
-         */
-        if (op_ret < 0)
-                op_ret = 0;
+    /* We need to ensure that only the last subvolume's end-of-directory
+     * notification is respected so that directory reading does not stop
+     * before all subvolumes have been read. That could happen because the
+     * posix for each subvolume sends a ENOENT on end-of-directory but in
+     * distribute we're not concerned only with a posix's view of the
+     * directory but the aggregated namespace' view of the directory.
+     */
+    if (op_ret < 0)
+        op_ret = 0;
 
-        if (prev != dht_last_up_subvol (this))
-                op_errno = 0;
+    if (prev != dht_last_up_subvol(this))
+        op_errno = 0;
 
-        DHT_STACK_UNWIND (readdirp, frame, op_ret, op_errno,
-                          &entries, NULL);
+    DHT_STACK_UNWIND(readdirp, frame, op_ret, op_errno, &entries, NULL);
 
-        gf_dirent_free (&entries);
-        return 0;
+    gf_dirent_free(&entries);
+    return 0;
 }
 
-
 int
-dht_readdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                 int op_ret, int op_errno, gf_dirent_t *orig_entries,
-                 dict_t *xdata)
+dht_readdir_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, gf_dirent_t *orig_entries, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        gf_dirent_t   entries;
-        gf_dirent_t  *orig_entry = NULL;
-        gf_dirent_t  *entry = NULL;
-        xlator_t     *prev = NULL;
-        xlator_t     *next_subvol = NULL;
-        off_t         next_offset = 0;
-        int           count = 0;
-        dht_layout_t *layout = 0;
-        xlator_t     *subvol = 0;
-        dht_conf_t   *conf = NULL;
-        dht_methods_t *methods = NULL;
-        gf_boolean_t   skip_hashed_check = _gf_false;
-
-        INIT_LIST_HEAD (&entries.list);
-
-        prev = cookie;
-        local = frame->local;
+    dht_local_t *local = NULL;
+    gf_dirent_t entries;
+    gf_dirent_t *orig_entry = NULL;
+    gf_dirent_t *entry = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *next_subvol = NULL;
+    off_t next_offset = 0;
+    int count = 0;
+    dht_layout_t *layout = 0;
+    xlator_t *subvol = 0;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
+    gf_boolean_t skip_hashed_check = _gf_false;
 
-        conf = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, done);
+    INIT_LIST_HEAD(&entries.list);
 
-        methods = &(conf->methods);
+    prev = cookie;
+    local = frame->local;
 
-        if (op_ret <= 0)
-                goto done;
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, done);
 
-        if (!local->layout)
-                local->layout = dht_layout_get (this, local->fd->inode);
+    methods = &(conf->methods);
 
-        layout = local->layout;
+    if (op_ret <= 0)
+        goto done;
 
-        gf_msg_debug (this->name, 0, "Processing entries from %s",
-                      prev->name);
+    if (!local->layout)
+        local->layout = dht_layout_get(this, local->fd->inode);
 
-        if (conf->subvolume_cnt == 1) {
-                /*return everything*/
-                skip_hashed_check = _gf_true;
-                count = op_ret;
-                goto done;
-        }
+    layout = local->layout;
+
+    gf_msg_debug(this->name, 0, "Processing entries from %s", prev->name);
 
-        list_for_each_entry (orig_entry, (&orig_entries->list), list) {
-                next_offset = orig_entry->d_off;
+    if (conf->subvolume_cnt == 1) {
+        /*return everything*/
+        skip_hashed_check = _gf_true;
+        count = op_ret;
+        goto done;
+    }
 
-                gf_msg_debug (this->name, 0, "%s: entry = %s, type = %d",
-                              prev->name, orig_entry->d_name,
-                              orig_entry->d_type);
+    list_for_each_entry(orig_entry, (&orig_entries->list), list)
+    {
+        next_offset = orig_entry->d_off;
 
-                subvol = methods->layout_search (this, layout,
-                                                 orig_entry->d_name);
+        gf_msg_debug(this->name, 0, "%s: entry = %s, type = %d", prev->name,
+                     orig_entry->d_name, orig_entry->d_type);
 
-                if (!subvol || (subvol == prev)) {
-                        entry = gf_dirent_for_name (orig_entry->d_name);
-                        if (!entry) {
-                                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                        DHT_MSG_NO_MEMORY,
-                                        "Memory allocation failed ");
-                                goto unwind;
-                        }
+        subvol = methods->layout_search(this, layout, orig_entry->d_name);
 
-                        entry->d_off  = orig_entry->d_off;
-                        entry->d_ino  = orig_entry->d_ino;
-                        entry->d_type = orig_entry->d_type;
-                        entry->d_len  = orig_entry->d_len;
+        if (!subvol || (subvol == prev)) {
+            entry = gf_dirent_for_name(orig_entry->d_name);
+            if (!entry) {
+                gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                       "Memory allocation failed ");
+                goto unwind;
+            }
 
-                        gf_msg_debug (this->name, 0, "%s: Adding = entry %s",
-                                      prev->name, entry->d_name);
+            entry->d_off = orig_entry->d_off;
+            entry->d_ino = orig_entry->d_ino;
+            entry->d_type = orig_entry->d_type;
+            entry->d_len = orig_entry->d_len;
 
-                        list_add_tail (&entry->list, &entries.list);
-                        count++;
-                }
+            gf_msg_debug(this->name, 0, "%s: Adding = entry %s", prev->name,
+                         entry->d_name);
+
+            list_add_tail(&entry->list, &entries.list);
+            count++;
         }
+    }
 done:
-        op_ret = count;
-        /* We need to ensure that only the last subvolume's end-of-directory
-         * notification is respected so that directory reading does not stop
-         * before all subvolumes have been read. That could happen because the
-         * posix for each subvolume sends a ENOENT on end-of-directory but in
-         * distribute we're not concerned only with a posix's view of the
-         * directory but the aggregated namespace' view of the directory.
-         */
-        if (count == 0) {
-                if ((next_offset == 0) || (op_errno == ENOENT)) {
-                        next_offset = 0;
-                        next_subvol = dht_subvol_next (this, prev);
-                } else {
-                        next_subvol = prev;
-                }
-
-                if (!next_subvol) {
-                        goto unwind;
-                }
+    op_ret = count;
+    /* We need to ensure that only the last subvolume's end-of-directory
+     * notification is respected so that directory reading does not stop
+     * before all subvolumes have been read. That could happen because the
+     * posix for each subvolume sends a ENOENT on end-of-directory but in
+     * distribute we're not concerned only with a posix's view of the
+     * directory but the aggregated namespace' view of the directory.
+     */
+    if (count == 0) {
+        if ((next_offset == 0) || (op_errno == ENOENT)) {
+            next_offset = 0;
+            next_subvol = dht_subvol_next(this, prev);
+        } else {
+            next_subvol = prev;
+        }
 
-                STACK_WIND_COOKIE (frame, dht_readdir_cbk, next_subvol,
-                                   next_subvol, next_subvol->fops->readdir,
-                                   local->fd, local->size,
-                                   next_offset, NULL);
-                return 0;
+        if (!next_subvol) {
+            goto unwind;
         }
 
+        STACK_WIND_COOKIE(frame, dht_readdir_cbk, next_subvol, next_subvol,
+                          next_subvol->fops->readdir, local->fd, local->size,
+                          next_offset, NULL);
+        return 0;
+    }
+
 unwind:
-        /* We need to ensure that only the last subvolume's end-of-directory
-         * notification is respected so that directory reading does not stop
-         * before all subvolumes have been read. That could happen because the
-         * posix for each subvolume sends a ENOENT on end-of-directory but in
-         * distribute we're not concerned only with a posix's view of the
-         * directory but the aggregated namespace' view of the directory.
-         */
+    /* We need to ensure that only the last subvolume's end-of-directory
+     * notification is respected so that directory reading does not stop
+     * before all subvolumes have been read. That could happen because the
+     * posix for each subvolume sends a ENOENT on end-of-directory but in
+     * distribute we're not concerned only with a posix's view of the
+     * directory but the aggregated namespace' view of the directory.
+     */
 
-        if (prev != dht_last_up_subvol (this))
-                op_errno = 0;
+    if (prev != dht_last_up_subvol(this))
+        op_errno = 0;
 
-        if (!skip_hashed_check) {
-                DHT_STACK_UNWIND (readdir, frame, op_ret, op_errno,
-                                  &entries, NULL);
-                gf_dirent_free (&entries);
+    if (!skip_hashed_check) {
+        DHT_STACK_UNWIND(readdir, frame, op_ret, op_errno, &entries, NULL);
+        gf_dirent_free(&entries);
 
-        } else {
-                DHT_STACK_UNWIND (readdir, frame, op_ret, op_errno,
-                                  orig_entries, NULL);
-        }
-        return 0;
+    } else {
+        DHT_STACK_UNWIND(readdir, frame, op_ret, op_errno, orig_entries, NULL);
+    }
+    return 0;
 }
 
-
 int
-dht_do_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
-                off_t yoff, int whichop, dict_t *dict)
+dht_do_readdir(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+               off_t yoff, int whichop, dict_t *dict)
 {
-        dht_local_t  *local  = NULL;
-        int           op_errno = -1;
-        xlator_t     *xvol = NULL;
-        int           ret = 0;
-        dht_conf_t   *conf = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, NULL, NULL, whichop);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->fd = fd_ref (fd);
-        local->size = size;
-        local->xattr_req = (dict)? dict_ref (dict) : NULL;
-        local->first_up_subvol = dht_first_up_subvol (this);
-        local->op_ret = -1;
+    dht_local_t *local = NULL;
+    int op_errno = -1;
+    xlator_t *xvol = NULL;
+    int ret = 0;
+    dht_conf_t *conf = NULL;
 
-        dht_deitransform (this, yoff, &xvol);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        /* TODO: do proper readdir */
-        if (whichop == GF_FOP_READDIRP) {
-                if (dict)
-                        local->xattr = dict_ref (dict);
-                else
-                        local->xattr = dict_new ();
+    conf = this->private;
 
-                if (local->xattr) {
-                        ret = dict_set_uint32 (local->xattr,
-                                               conf->link_xattr_name, 256);
-                        if (ret)
-                                gf_msg (this->name, GF_LOG_WARNING, 0,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "Failed to set dictionary value"
-                                        " : key = %s",
-                                        conf->link_xattr_name);
+    local = dht_local_init(frame, NULL, NULL, whichop);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-                        if (conf->readdir_optimize == _gf_true) {
-                                if (xvol != local->first_up_subvol) {
-                                        ret = dict_set_int32 (local->xattr,
-                                                       GF_READDIR_SKIP_DIRS, 1);
-                                        if (ret)
-                                                gf_msg (this->name,
-                                                        GF_LOG_ERROR, 0,
-                                                        DHT_MSG_DICT_SET_FAILED,
-                                                        "Failed to set "
-                                                        "dictionary value: "
-                                                        "key = %s",
-                                                        GF_READDIR_SKIP_DIRS);
-                                } else {
-                                        dict_del (local->xattr,
-                                                  GF_READDIR_SKIP_DIRS);
-                                }
-                        }
-
-                        if (conf->subvolume_cnt == 1) {
-                                ret = dict_set_uint32 (local->xattr,
-                                                       conf->xattr_name, 4 * 4);
-                                if (ret) {
-                                        gf_msg (this->name, GF_LOG_WARNING,
-                                                ENOMEM,
-                                                DHT_MSG_DICT_SET_FAILED,
-                                                "Failed to set dictionary "
-                                                "value:key = %s ",
-                                                conf->xattr_name);
-                                }
-                        }
+    local->fd = fd_ref(fd);
+    local->size = size;
+    local->xattr_req = (dict) ? dict_ref(dict) : NULL;
+    local->first_up_subvol = dht_first_up_subvol(this);
+    local->op_ret = -1;
 
+    dht_deitransform(this, yoff, &xvol);
 
+    /* TODO: do proper readdir */
+    if (whichop == GF_FOP_READDIRP) {
+        if (dict)
+            local->xattr = dict_ref(dict);
+        else
+            local->xattr = dict_new();
+
+        if (local->xattr) {
+            ret = dict_set_uint32(local->xattr, conf->link_xattr_name, 256);
+            if (ret)
+                gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                       "Failed to set dictionary value"
+                       " : key = %s",
+                       conf->link_xattr_name);
+
+            if (conf->readdir_optimize == _gf_true) {
+                if (xvol != local->first_up_subvol) {
+                    ret = dict_set_int32(local->xattr, GF_READDIR_SKIP_DIRS, 1);
+                    if (ret)
+                        gf_msg(this->name, GF_LOG_ERROR, 0,
+                               DHT_MSG_DICT_SET_FAILED,
+                               "Failed to set "
+                               "dictionary value: "
+                               "key = %s",
+                               GF_READDIR_SKIP_DIRS);
+                } else {
+                    dict_del(local->xattr, GF_READDIR_SKIP_DIRS);
                 }
+            }
 
-                STACK_WIND_COOKIE (frame, dht_readdirp_cbk, xvol, xvol,
-                                   xvol->fops->readdirp, fd, size, yoff,
-                                   local->xattr);
-        } else {
-                STACK_WIND_COOKIE (frame, dht_readdir_cbk, xvol, xvol,
-                                   xvol->fops->readdir, fd, size, yoff,
-                                   local->xattr);
+            if (conf->subvolume_cnt == 1) {
+                ret = dict_set_uint32(local->xattr, conf->xattr_name, 4 * 4);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_WARNING, ENOMEM,
+                           DHT_MSG_DICT_SET_FAILED,
+                           "Failed to set dictionary "
+                           "value:key = %s ",
+                           conf->xattr_name);
+                }
+            }
         }
 
-        return 0;
+        STACK_WIND_COOKIE(frame, dht_readdirp_cbk, xvol, xvol,
+                          xvol->fops->readdirp, fd, size, yoff, local->xattr);
+    } else {
+        STACK_WIND_COOKIE(frame, dht_readdir_cbk, xvol, xvol,
+                          xvol->fops->readdir, fd, size, yoff, local->xattr);
+    }
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (readdir, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(readdir, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
-             off_t yoff, dict_t *xdata)
+dht_readdir(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+            off_t yoff, dict_t *xdata)
 {
-        int          op = GF_FOP_READDIR;
-        dht_conf_t  *conf = NULL;
-        int          i = 0;
+    int op = GF_FOP_READDIR;
+    dht_conf_t *conf = NULL;
+    int i = 0;
 
-        conf = this->private;
-        if (!conf)
-                goto out;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (!conf->subvolume_status[i]) {
-                        op = GF_FOP_READDIRP;
-                        break;
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (!conf->subvolume_status[i]) {
+            op = GF_FOP_READDIRP;
+            break;
         }
+    }
 
-        if (conf->use_readdirp)
-                op = GF_FOP_READDIRP;
+    if (conf->use_readdirp)
+        op = GF_FOP_READDIRP;
 
 out:
-        dht_do_readdir (frame, this, fd, size, yoff, op, 0);
-        return 0;
+    dht_do_readdir(frame, this, fd, size, yoff, op, 0);
+    return 0;
 }
 
 int
-dht_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
-              off_t yoff, dict_t *dict)
+dht_readdirp(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+             off_t yoff, dict_t *dict)
 {
-        dht_do_readdir (frame, this, fd, size, yoff, GF_FOP_READDIRP, dict);
-        return 0;
+    dht_do_readdir(frame, this, fd, size, yoff, GF_FOP_READDIRP, dict);
+    return 0;
 }
 
-
-
 int
-dht_fsyncdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int op_ret, int op_errno, dict_t *xdata)
+dht_fsyncdir_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1)
-                        local->op_errno = op_errno;
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1)
+            local->op_errno = op_errno;
 
-                if (op_ret == 0)
-                        local->op_ret = 0;
-        }
-        UNLOCK (&frame->lock);
+        if (op_ret == 0)
+            local->op_ret = 0;
+    }
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt))
-                DHT_STACK_UNWIND (fsyncdir, frame, local->op_ret,
-                                  local->op_errno, xdata);
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt))
+        DHT_STACK_UNWIND(fsyncdir, frame, local->op_ret, local->op_errno,
+                         xdata);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fsyncdir (call_frame_t *frame, xlator_t *this, fd_t *fd,
-              int datasync, dict_t *xdata)
+dht_fsyncdir(call_frame_t *frame, xlator_t *this, fd_t *fd, int datasync,
+             dict_t *xdata)
 {
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           op_errno = -1;
-        int           i = -1;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = -1;
+    int i = -1;
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-        VALIDATE_OR_GOTO (this->private, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        conf = this->private;
+    conf = this->private;
 
-        local = dht_local_init (frame, NULL, NULL, GF_FOP_FSYNCDIR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    local = dht_local_init(frame, NULL, NULL, GF_FOP_FSYNCDIR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        local->fd = fd_ref (fd);
-        local->call_cnt = conf->subvolume_cnt;
+    local->fd = fd_ref(fd);
+    local->call_cnt = conf->subvolume_cnt;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                STACK_WIND (frame, dht_fsyncdir_cbk,
-                            conf->subvolumes[i],
-                            conf->subvolumes[i]->fops->fsyncdir,
-                            fd, datasync, xdata);
-        }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        STACK_WIND(frame, dht_fsyncdir_cbk, conf->subvolumes[i],
+                   conf->subvolumes[i]->fops->fsyncdir, fd, datasync, xdata);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fsyncdir, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fsyncdir, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_newfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                 int op_ret, int op_errno,
-                 inode_t *inode, struct iatt *stbuf, struct iatt *preparent,
-                 struct iatt *postparent, dict_t *xdata)
+dht_newfile_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, inode_t *inode, struct iatt *stbuf,
+                struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
 {
-        xlator_t     *prev = NULL;
-        int           ret = -1;
-        dht_local_t  *local = NULL;
-
+    xlator_t *prev = NULL;
+    int ret = -1;
+    dht_local_t *local = NULL;
 
-        if (op_ret == -1)
-                goto out;
-
-        local = frame->local;
-        if (!local) {
-                op_ret = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
-
-        prev = cookie;
-
-        if (local->loc.parent) {
-
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           preparent, 0);
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           postparent, 1);
-        }
+    if (op_ret == -1)
+        goto out;
 
-        ret = dht_layout_preset (this, prev, inode);
-        if (ret < 0) {
-                gf_msg_debug (this->name, EINVAL,
-                              "could not set pre-set layout for subvolume %s",
-                              prev? prev->name: NULL);
-                op_ret   = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
-        if (local->linked == _gf_true)
-                dht_linkfile_attr_heal (frame, this);
+    local = frame->local;
+    if (!local) {
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
+
+    prev = cookie;
+
+    if (local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, preparent, 0);
+        dht_inode_ctx_time_update(local->loc.parent, this, postparent, 1);
+    }
+
+    ret = dht_layout_preset(this, prev, inode);
+    if (ret < 0) {
+        gf_msg_debug(this->name, EINVAL,
+                     "could not set pre-set layout for subvolume %s",
+                     prev ? prev->name : NULL);
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
+    if (local->linked == _gf_true)
+        dht_linkfile_attr_heal(frame, this);
 out:
-        /*
-         * FIXME: ia_size and st_blocks of preparent and postparent do not have
-         * correct values. since, preparent and postparent buffers correspond
-         * to a directory these two members should have values equal to sum of
-         * corresponding values from each of the subvolume.
-         * See dht_iatt_merge for reference.
-         */
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
-        dht_set_fixed_dir_stat (postparent);
-        dht_set_fixed_dir_stat (preparent);
-
-        if (local && local->lock[0].layout.parent_layout.locks) {
-                /* store op_errno for failure case*/
-                local->op_errno = op_errno;
-                local->refresh_layout_unlock (frame, this, op_ret, 1);
+    /*
+     * FIXME: ia_size and st_blocks of preparent and postparent do not have
+     * correct values. since, preparent and postparent buffers correspond
+     * to a directory these two members should have values equal to sum of
+     * corresponding values from each of the subvolume.
+     * See dht_iatt_merge for reference.
+     */
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
+    dht_set_fixed_dir_stat(postparent);
+    dht_set_fixed_dir_stat(preparent);
+
+    if (local && local->lock[0].layout.parent_layout.locks) {
+        /* store op_errno for failure case*/
+        local->op_errno = op_errno;
+        local->refresh_layout_unlock(frame, this, op_ret, 1);
 
-                if (op_ret == 0) {
-                        DHT_STACK_UNWIND (mknod, frame, op_ret, op_errno,
-                                          inode, stbuf, preparent, postparent,
-                                          xdata);
-                }
-        } else {
-                DHT_STACK_UNWIND (mknod, frame, op_ret, op_errno, inode,
-                                  stbuf, preparent, postparent, xdata);
+        if (op_ret == 0) {
+            DHT_STACK_UNWIND(mknod, frame, op_ret, op_errno, inode, stbuf,
+                             preparent, postparent, xdata);
         }
+    } else {
+        DHT_STACK_UNWIND(mknod, frame, op_ret, op_errno, inode, stbuf,
+                         preparent, postparent, xdata);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_mknod_linkfile_create_cbk (call_frame_t *frame, void *cookie,
-                               xlator_t *this,
-                               int32_t op_ret, int32_t op_errno,
-                               inode_t *inode, struct iatt *stbuf,
-                               struct iatt *preparent, struct iatt *postparent,
-                               dict_t *xdata)
+dht_mknod_linkfile_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                              int32_t op_ret, int32_t op_errno, inode_t *inode,
+                              struct iatt *stbuf, struct iatt *preparent,
+                              struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t     *local          = NULL;
-        xlator_t        *cached_subvol  = NULL;
-        dht_conf_t      *conf           = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *cached_subvol = NULL;
+    dht_conf_t *conf = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (!local || !local->cached_subvol) {
-                op_errno = EINVAL;
-                goto err;
-        }
+    if (!local || !local->cached_subvol) {
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        if (op_ret == -1) {
-                local->op_errno = op_errno;
-                goto err;
-        }
+    if (op_ret == -1) {
+        local->op_errno = op_errno;
+        goto err;
+    }
 
-        conf = this->private;
-        if (!conf) {
-                local->op_errno =  EINVAL;
-                op_errno = EINVAL;
-                goto err;
-        }
+    conf = this->private;
+    if (!conf) {
+        local->op_errno = EINVAL;
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        cached_subvol = local->cached_subvol;
+    cached_subvol = local->cached_subvol;
 
-        if (local->params) {
-                 dict_del (local->params, conf->link_xattr_name);
-                 dict_del (local->params, GLUSTERFS_INTERNAL_FOP_KEY);
-        }
+    if (local->params) {
+        dict_del(local->params, conf->link_xattr_name);
+        dict_del(local->params, GLUSTERFS_INTERNAL_FOP_KEY);
+    }
 
-        STACK_WIND_COOKIE (frame, dht_newfile_cbk, (void *)cached_subvol,
-                           cached_subvol, cached_subvol->fops->mknod,
-                           &local->loc, local->mode, local->rdev, local->umask,
-                           local->params);
+    STACK_WIND_COOKIE(frame, dht_newfile_cbk, (void *)cached_subvol,
+                      cached_subvol, cached_subvol->fops->mknod, &local->loc,
+                      local->mode, local->rdev, local->umask, local->params);
 
-        return 0;
+    return 0;
 err:
-        if (local && local->lock[0].layout.parent_layout.locks) {
-                local->refresh_layout_unlock (frame, this, -1, 1);
-        } else {
-                DHT_STACK_UNWIND (mknod, frame, -1,
-                                  op_errno, NULL, NULL, NULL,
-                                  NULL, NULL);
-        }
-        return 0;
+    if (local && local->lock[0].layout.parent_layout.locks) {
+        local->refresh_layout_unlock(frame, this, -1, 1);
+    } else {
+        DHT_STACK_UNWIND(mknod, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+                         NULL);
+    }
+    return 0;
 }
 
 int
-dht_mknod_wind_to_avail_subvol (call_frame_t *frame, xlator_t *this,
-                                 xlator_t *subvol, loc_t *loc, dev_t rdev,
-                                 mode_t mode, mode_t umask, dict_t *params)
+dht_mknod_wind_to_avail_subvol(call_frame_t *frame, xlator_t *this,
+                               xlator_t *subvol, loc_t *loc, dev_t rdev,
+                               mode_t mode, mode_t umask, dict_t *params)
 {
-        dht_local_t     *local          = NULL;
-        xlator_t        *avail_subvol   = NULL;
-
-        local = frame->local;
+    dht_local_t *local = NULL;
+    xlator_t *avail_subvol = NULL;
 
-        if (!dht_is_subvol_filled (this, subvol)) {
-                gf_msg_debug (this->name, 0,
-                              "creating %s on %s", loc->path,
-                              subvol->name);
+    local = frame->local;
 
-                STACK_WIND_COOKIE (frame, dht_newfile_cbk, (void *)subvol,
-                                   subvol, subvol->fops->mknod, loc, mode,
-                                   rdev, umask, params);
-        } else {
-                avail_subvol = dht_free_disk_available_subvol (this, subvol, local);
+    if (!dht_is_subvol_filled(this, subvol)) {
+        gf_msg_debug(this->name, 0, "creating %s on %s", loc->path,
+                     subvol->name);
 
-                if (avail_subvol != subvol) {
-                        local->params = dict_ref (params);
-                        local->rdev = rdev;
-                        local->mode = mode;
-                        local->umask = umask;
-                        local->cached_subvol = avail_subvol;
-                        local->hashed_subvol = subvol;
+        STACK_WIND_COOKIE(frame, dht_newfile_cbk, (void *)subvol, subvol,
+                          subvol->fops->mknod, loc, mode, rdev, umask, params);
+    } else {
+        avail_subvol = dht_free_disk_available_subvol(this, subvol, local);
 
-                        gf_msg_debug (this->name, 0,
-                                      "creating %s on %s (link at %s)", loc->path,
-                                      avail_subvol->name, subvol->name);
+        if (avail_subvol != subvol) {
+            local->params = dict_ref(params);
+            local->rdev = rdev;
+            local->mode = mode;
+            local->umask = umask;
+            local->cached_subvol = avail_subvol;
+            local->hashed_subvol = subvol;
 
-                        dht_linkfile_create (frame,
-                                             dht_mknod_linkfile_create_cbk,
-                                             this, avail_subvol, subvol, loc);
+            gf_msg_debug(this->name, 0, "creating %s on %s (link at %s)",
+                         loc->path, avail_subvol->name, subvol->name);
 
-                        goto out;
-                }
+            dht_linkfile_create(frame, dht_mknod_linkfile_create_cbk, this,
+                                avail_subvol, subvol, loc);
 
-                gf_msg_debug (this->name, 0,
-                              "creating %s on %s", loc->path, subvol->name);
+            goto out;
+        }
 
-                STACK_WIND_COOKIE (frame, dht_newfile_cbk,
-                                   (void *)subvol, subvol,
-                                   subvol->fops->mknod, loc, mode,
-                                   rdev, umask, params);
+        gf_msg_debug(this->name, 0, "creating %s on %s", loc->path,
+                     subvol->name);
 
-        }
+        STACK_WIND_COOKIE(frame, dht_newfile_cbk, (void *)subvol, subvol,
+                          subvol->fops->mknod, loc, mode, rdev, umask, params);
+    }
 out:
-        return 0;
+    return 0;
 }
 
 int32_t
-dht_mknod_do (call_frame_t *frame)
+dht_mknod_do(call_frame_t *frame)
 {
-        dht_local_t     *local          = NULL;
-        dht_layout_t    *refreshed      = NULL;
-        xlator_t        *subvol         = NULL;
-        xlator_t        *this           = NULL;
-        dht_conf_t      *conf           = NULL;
-        dht_methods_t   *methods        = NULL;
+    dht_local_t *local = NULL;
+    dht_layout_t *refreshed = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        this = THIS;
+    this = THIS;
 
-        conf = this->private;
+    conf = this->private;
 
-        GF_VALIDATE_OR_GOTO (this->name, conf, err);
+    GF_VALIDATE_OR_GOTO(this->name, conf, err);
 
-        methods = &(conf->methods);
+    methods = &(conf->methods);
 
-        /* We don't need parent_loc anymore */
-        loc_wipe (&local->loc);
+    /* We don't need parent_loc anymore */
+    loc_wipe(&local->loc);
 
-        loc_copy (&local->loc, &local->loc2);
+    loc_copy(&local->loc, &local->loc2);
 
-        loc_wipe (&local->loc2);
+    loc_wipe(&local->loc2);
 
-        refreshed = local->selfheal.refreshed_layout;
+    refreshed = local->selfheal.refreshed_layout;
 
-        subvol = methods->layout_search (this, refreshed, local->loc.name);
+    subvol = methods->layout_search(this, refreshed, local->loc.name);
 
-        if (!subvol) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_HASHED_SUBVOL_GET_FAILED, "no subvolume in "
-                        "layout for path=%s", local->loc.path);
-                local->op_errno = ENOENT;
-                goto err;
-        }
+    if (!subvol) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+               "no subvolume in "
+               "layout for path=%s",
+               local->loc.path);
+        local->op_errno = ENOENT;
+        goto err;
+    }
 
-        dht_mknod_wind_to_avail_subvol (frame, this, subvol, &local->loc,
-                                         local->rdev, local->mode,
-                                         local->umask, local->params);
-        return 0;
+    dht_mknod_wind_to_avail_subvol(frame, this, subvol, &local->loc,
+                                   local->rdev, local->mode, local->umask,
+                                   local->params);
+    return 0;
 err:
-        local->refresh_layout_unlock (frame, this, -1, 1);
+    local->refresh_layout_unlock(frame, this, -1, 1);
 
-        return 0;
+    return 0;
 }
 
-
 int32_t
-dht_mknod_unlock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_mknod_unlock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
 int32_t
-dht_mknod_finish (call_frame_t *frame, xlator_t *this, int op_ret,
-                  int invoke_cbk)
-{
-        dht_local_t  *local      = NULL, *lock_local = NULL;
-        call_frame_t *lock_frame = NULL;
-        int           lock_count = 0;
-
-        local = frame->local;
-        lock_count = dht_lock_count (local->lock[0].layout.parent_layout.locks,
-                                     local->lock[0].layout.parent_layout.lk_count);
-        if (lock_count == 0)
-                goto done;
-
-        lock_frame = copy_frame (frame);
-        if (lock_frame == NULL) {
-                goto done;
-        }
-
-        lock_local = dht_local_init (lock_frame, &local->loc, NULL,
-                                     lock_frame->root->op);
-        if (lock_local == NULL) {
-                goto done;
-        }
-
-        lock_local->lock[0].layout.parent_layout.locks = local->lock[0].layout.parent_layout.locks;
-        lock_local->lock[0].layout.parent_layout.lk_count = local->lock[0].layout.parent_layout.lk_count;
-
-        local->lock[0].layout.parent_layout.locks = NULL;
-        local->lock[0].layout.parent_layout.lk_count = 0;
-
-        dht_unlock_inodelk (lock_frame,
-                            lock_local->lock[0].layout.parent_layout.locks,
-                            lock_local->lock[0].layout.parent_layout.lk_count,
-                            dht_mknod_unlock_cbk);
-        lock_frame = NULL;
+dht_mknod_finish(call_frame_t *frame, xlator_t *this, int op_ret,
+                 int invoke_cbk)
+{
+    dht_local_t *local = NULL, *lock_local = NULL;
+    call_frame_t *lock_frame = NULL;
+    int lock_count = 0;
+
+    local = frame->local;
+    lock_count = dht_lock_count(local->lock[0].layout.parent_layout.locks,
+                                local->lock[0].layout.parent_layout.lk_count);
+    if (lock_count == 0)
+        goto done;
+
+    lock_frame = copy_frame(frame);
+    if (lock_frame == NULL) {
+        goto done;
+    }
+
+    lock_local = dht_local_init(lock_frame, &local->loc, NULL,
+                                lock_frame->root->op);
+    if (lock_local == NULL) {
+        goto done;
+    }
+
+    lock_local->lock[0]
+        .layout.parent_layout.locks = local->lock[0].layout.parent_layout.locks;
+    lock_local->lock[0].layout.parent_layout.lk_count =
+        local->lock[0].layout.parent_layout.lk_count;
+
+    local->lock[0].layout.parent_layout.locks = NULL;
+    local->lock[0].layout.parent_layout.lk_count = 0;
+
+    dht_unlock_inodelk(lock_frame,
+                       lock_local->lock[0].layout.parent_layout.locks,
+                       lock_local->lock[0].layout.parent_layout.lk_count,
+                       dht_mknod_unlock_cbk);
+    lock_frame = NULL;
 
 done:
-        if (lock_frame != NULL) {
-                DHT_STACK_DESTROY (lock_frame);
-        }
+    if (lock_frame != NULL) {
+        DHT_STACK_DESTROY(lock_frame);
+    }
 
-        if (op_ret == 0)
-                return 0;
-
-        DHT_STACK_UNWIND (mknod, frame, op_ret, local->op_errno, NULL, NULL,
-                          NULL, NULL, NULL);
+    if (op_ret == 0)
         return 0;
+
+    DHT_STACK_UNWIND(mknod, frame, op_ret, local->op_errno, NULL, NULL, NULL,
+                     NULL, NULL);
+    return 0;
 }
 
 int32_t
-dht_mknod_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_mknod_lock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                   int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t     *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (!local) {
-                goto err;
-        }
+    if (!local) {
+        goto err;
+    }
 
-        if (op_ret < 0) {
-                gf_msg ("DHT", GF_LOG_ERROR, 0, DHT_MSG_INODE_LK_ERROR,
-                        "mknod lock failed for file: %s", local->loc2.name);
+    if (op_ret < 0) {
+        gf_msg("DHT", GF_LOG_ERROR, 0, DHT_MSG_INODE_LK_ERROR,
+               "mknod lock failed for file: %s", local->loc2.name);
 
-                local->op_errno = op_errno;
+        local->op_errno = op_errno;
 
-                goto err;
-        }
+        goto err;
+    }
 
-        local->refresh_layout_unlock = dht_mknod_finish;
+    local->refresh_layout_unlock = dht_mknod_finish;
 
-        local->refresh_layout_done = dht_mknod_do;
+    local->refresh_layout_done = dht_mknod_do;
 
-        dht_refresh_layout (frame);
+    dht_refresh_layout(frame);
 
-        return 0;
+    return 0;
 err:
-        dht_mknod_finish (frame, this, -1, 0);
-        return 0;
+    dht_mknod_finish(frame, this, -1, 0);
+    return 0;
 }
 
 int32_t
-dht_mknod_lock (call_frame_t *frame, xlator_t *subvol)
+dht_mknod_lock(call_frame_t *frame, xlator_t *subvol)
 {
-        dht_local_t     *local          = NULL;
-        int              count  = 1,    ret = -1;
-        dht_lock_t     **lk_array       = NULL;
+    dht_local_t *local = NULL;
+    int count = 1, ret = -1;
+    dht_lock_t **lk_array = NULL;
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO (frame->this->name, frame->local, err);
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO(frame->this->name, frame->local, err);
 
-        local = frame->local;
+    local = frame->local;
 
-        lk_array = GF_CALLOC (count, sizeof (*lk_array), gf_common_mt_pointer);
+    lk_array = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_pointer);
 
-        if (lk_array == NULL)
-                goto err;
+    if (lk_array == NULL)
+        goto err;
 
-        lk_array[0] = dht_lock_new (frame->this, subvol, &local->loc, F_RDLCK,
-                                    DHT_LAYOUT_HEAL_DOMAIN, NULL,
-                                    IGNORE_ENOENT_ESTALE);
+    lk_array[0] = dht_lock_new(frame->this, subvol, &local->loc, F_RDLCK,
+                               DHT_LAYOUT_HEAL_DOMAIN, NULL,
+                               IGNORE_ENOENT_ESTALE);
 
-        if (lk_array[0] == NULL)
-                goto err;
+    if (lk_array[0] == NULL)
+        goto err;
 
-        local->lock[0].layout.parent_layout.locks = lk_array;
-        local->lock[0].layout.parent_layout.lk_count = count;
+    local->lock[0].layout.parent_layout.locks = lk_array;
+    local->lock[0].layout.parent_layout.lk_count = count;
 
-        ret = dht_blocking_inodelk (frame, lk_array, count, dht_mknod_lock_cbk);
+    ret = dht_blocking_inodelk(frame, lk_array, count, dht_mknod_lock_cbk);
 
-        if (ret < 0) {
-                local->lock[0].layout.parent_layout.locks = NULL;
-                local->lock[0].layout.parent_layout.lk_count = 0;
-                goto err;
-        }
+    if (ret < 0) {
+        local->lock[0].layout.parent_layout.locks = NULL;
+        local->lock[0].layout.parent_layout.lk_count = 0;
+        goto err;
+    }
 
-        return 0;
+    return 0;
 err:
-        if (lk_array != NULL) {
-                dht_lock_array_free (lk_array, count);
-                GF_FREE (lk_array);
-        }
+    if (lk_array != NULL) {
+        dht_lock_array_free(lk_array, count);
+        GF_FREE(lk_array);
+    }
 
-        return -1;
+    return -1;
 }
 
 int
-dht_refresh_parent_layout_resume (call_frame_t *frame, xlator_t *this, int ret,
-                                  int invoke_cbk)
+dht_refresh_parent_layout_resume(call_frame_t *frame, xlator_t *this, int ret,
+                                 int invoke_cbk)
 {
-        dht_local_t  *local        = NULL, *parent_local = NULL;
-        call_stub_t  *stub         = NULL;
-        call_frame_t *parent_frame = NULL;
+    dht_local_t *local = NULL, *parent_local = NULL;
+    call_stub_t *stub = NULL;
+    call_frame_t *parent_frame = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        stub = local->stub;
-        local->stub = NULL;
+    stub = local->stub;
+    local->stub = NULL;
 
-        parent_frame = stub->frame;
-        parent_local = parent_frame->local;
+    parent_frame = stub->frame;
+    parent_local = parent_frame->local;
 
-        if (ret < 0) {
-                parent_local->op_ret = -1;
-                parent_local->op_errno = local->op_errno
-                        ? local->op_errno : EIO;
-        } else {
-                parent_local->op_ret = 0;
-        }
+    if (ret < 0) {
+        parent_local->op_ret = -1;
+        parent_local->op_errno = local->op_errno ? local->op_errno : EIO;
+    } else {
+        parent_local->op_ret = 0;
+    }
 
-        call_resume (stub);
+    call_resume(stub);
 
-        DHT_STACK_DESTROY (frame);
+    DHT_STACK_DESTROY(frame);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_refresh_parent_layout_done (call_frame_t *frame)
+dht_refresh_parent_layout_done(call_frame_t *frame)
 {
-        dht_local_t *local = NULL;
-        int          ret   = 0;
+    dht_local_t *local = NULL;
+    int ret = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (local->op_ret < 0) {
-                ret = -1;
-                goto resume;
-        }
+    if (local->op_ret < 0) {
+        ret = -1;
+        goto resume;
+    }
 
-        dht_layout_set (frame->this, local->loc.inode,
-                        local->selfheal.refreshed_layout);
+    dht_layout_set(frame->this, local->loc.inode,
+                   local->selfheal.refreshed_layout);
 
 resume:
-        dht_refresh_parent_layout_resume (frame, frame->this, ret, 1);
-        return 0;
+    dht_refresh_parent_layout_resume(frame, frame->this, ret, 1);
+    return 0;
 }
 
-
 int
-dht_handle_parent_layout_change (xlator_t *this, call_stub_t *stub)
+dht_handle_parent_layout_change(xlator_t *this, call_stub_t *stub)
 {
-        call_frame_t *refresh_frame = NULL, *frame = NULL;
-        dht_local_t  *refresh_local = NULL, *local = NULL;
+    call_frame_t *refresh_frame = NULL, *frame = NULL;
+    dht_local_t *refresh_local = NULL, *local = NULL;
 
-        frame = stub->frame;
-        local = frame->local;
+    frame = stub->frame;
+    local = frame->local;
 
-        refresh_frame = copy_frame (frame);
-        refresh_local = dht_local_init (refresh_frame, NULL, NULL,
-                                        stub->fop);
+    refresh_frame = copy_frame(frame);
+    refresh_local = dht_local_init(refresh_frame, NULL, NULL, stub->fop);
 
-        refresh_local->loc.inode = inode_ref (local->loc.parent);
-        gf_uuid_copy (refresh_local->loc.gfid, local->loc.parent->gfid);
+    refresh_local->loc.inode = inode_ref(local->loc.parent);
+    gf_uuid_copy(refresh_local->loc.gfid, local->loc.parent->gfid);
 
-        refresh_local->stub = stub;
+    refresh_local->stub = stub;
 
-        refresh_local->refresh_layout_unlock = dht_refresh_parent_layout_resume;
-        refresh_local->refresh_layout_done = dht_refresh_parent_layout_done;
+    refresh_local->refresh_layout_unlock = dht_refresh_parent_layout_resume;
+    refresh_local->refresh_layout_done = dht_refresh_parent_layout_done;
 
-        dht_refresh_layout (refresh_frame);
-        return 0;
+    dht_refresh_layout(refresh_frame);
+    return 0;
 }
 
 int32_t
-dht_call_mkdir_stub (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_call_mkdir_stub(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local = NULL;
-        call_stub_t *stub  = NULL;
+    dht_local_t *local = NULL;
+    call_stub_t *stub = NULL;
 
-        local = frame->local;
-        stub = local->stub;
-        local->stub = NULL;
+    local = frame->local;
+    stub = local->stub;
+    local->stub = NULL;
 
-        if (op_ret < 0) {
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-        } else {
-                local->op_ret = 0;
-        }
+    if (op_ret < 0) {
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+    } else {
+        local->op_ret = 0;
+    }
 
-        call_resume (stub);
+    call_resume(stub);
 
-        return 0;
+    return 0;
 }
 
 int32_t
-dht_guard_parent_layout_and_namespace (xlator_t *subvol, call_stub_t *stub)
+dht_guard_parent_layout_and_namespace(xlator_t *subvol, call_stub_t *stub)
 {
-        dht_local_t   *local                  = NULL;
-        int            ret                    = -1;
-        loc_t         *loc                    = NULL;
-        xlator_t      *hashed_subvol          = NULL, *this = NULL;;
-        call_frame_t  *frame                  = NULL;
-        char          pgfid[GF_UUID_BUF_SIZE] = {0};
-        int32_t       *parent_disk_layout     = NULL;
-        dht_layout_t  *parent_layout          = NULL;
-        dht_conf_t    *conf                   = NULL;
+    dht_local_t *local = NULL;
+    int ret = -1;
+    loc_t *loc = NULL;
+    xlator_t *hashed_subvol = NULL, *this = NULL;
+    ;
+    call_frame_t *frame = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    int32_t *parent_disk_layout = NULL;
+    dht_layout_t *parent_layout = NULL;
+    dht_conf_t *conf = NULL;
 
-        GF_VALIDATE_OR_GOTO ("dht", stub, err);
+    GF_VALIDATE_OR_GOTO("dht", stub, err);
 
-        frame = stub->frame;
-        this = frame->this;
+    frame = stub->frame;
+    this = frame->this;
 
-        conf = this->private;
+    conf = this->private;
 
-        local = frame->local;
+    local = frame->local;
 
-        local->stub = stub;
+    local->stub = stub;
 
-        /* TODO: recheck whether we should lock on src or dst if we do similar
-         * stale layout checks for rename.
-         */
-        loc = &stub->args.loc;
+    /* TODO: recheck whether we should lock on src or dst if we do similar
+     * stale layout checks for rename.
+     */
+    loc = &stub->args.loc;
 
-        gf_uuid_unparse (loc->parent->gfid, pgfid);
+    gf_uuid_unparse(loc->parent->gfid, pgfid);
 
+    if (local->params == NULL) {
+        local->params = dict_new();
         if (local->params == NULL) {
-                local->params = dict_new ();
-                if (local->params == NULL) {
-                        local->op_errno = ENOMEM;
-                        gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                                DHT_MSG_PARENT_LAYOUT_CHANGED,
-                                "%s (%s/%s) (path: %s): "
-                                "dict allocation failed",
-                                gf_fop_list[stub->fop],
-                                pgfid, loc->name, loc->path);
-                        goto err;
-                }
-        }
-
-        hashed_subvol = dht_subvol_get_hashed (this, loc);
-        if (hashed_subvol == NULL) {
-                local->op_errno = EINVAL;
+            local->op_errno = ENOMEM;
+            gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+                   DHT_MSG_PARENT_LAYOUT_CHANGED,
+                   "%s (%s/%s) (path: %s): "
+                   "dict allocation failed",
+                   gf_fop_list[stub->fop], pgfid, loc->name, loc->path);
+            goto err;
+        }
+    }
+
+    hashed_subvol = dht_subvol_get_hashed(this, loc);
+    if (hashed_subvol == NULL) {
+        local->op_errno = EINVAL;
+
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "%s (%s/%s) (path: %s): "
+               "hashed subvolume not found",
+               gf_fop_list[stub->fop], pgfid, loc->name, loc->path);
+        goto err;
+    }
+
+    parent_layout = dht_layout_get(this, loc->parent);
+
+    ret = dht_disk_layout_extract_for_subvol(this, parent_layout, hashed_subvol,
+                                             &parent_disk_layout);
+    if (ret == -1) {
+        local->op_errno = EINVAL;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "%s (%s/%s) (path: %s): "
+               "extracting in-memory layout of parent failed. ",
+               gf_fop_list[stub->fop], pgfid, loc->name, loc->path);
+        goto err;
+    }
+
+    memcpy((void *)local->parent_disk_layout, (void *)parent_disk_layout,
+           sizeof(local->parent_disk_layout));
+
+    dht_layout_unref(this, parent_layout);
+    parent_layout = NULL;
+
+    ret = dict_set_str(local->params, GF_PREOP_PARENT_KEY, conf->xattr_name);
+    if (ret < 0) {
+        local->op_errno = -ret;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "%s (%s/%s) (path: %s): "
+               "setting %s key in params dictionary failed. ",
+               gf_fop_list[stub->fop], pgfid, loc->name, loc->path,
+               GF_PREOP_PARENT_KEY);
+        goto err;
+    }
+
+    ret = dict_set_bin(local->params, conf->xattr_name, parent_disk_layout,
+                       4 * 4);
+    if (ret < 0) {
+        local->op_errno = -ret;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "%s (%s/%s) (path: %s): "
+               "setting parent-layout in params dictionary failed. ",
+               gf_fop_list[stub->fop], pgfid, loc->name, loc->path);
+        goto err;
+    }
+
+    parent_disk_layout = NULL;
+    local->hashed_subvol = hashed_subvol;
+
+    local->current = &local->lock[0];
+    ret = dht_protect_namespace(frame, loc, hashed_subvol, &local->current->ns,
+                                dht_call_mkdir_stub);
+    if (ret < 0)
+        goto err;
+
+    return 0;
+err:
 
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "%s (%s/%s) (path: %s): "
-                        "hashed subvolume not found", gf_fop_list[stub->fop],
-                        pgfid, loc->name, loc->path);
-                goto err;
-        }
+    if (parent_disk_layout != NULL)
+        GF_FREE(parent_disk_layout);
 
-        parent_layout = dht_layout_get (this, loc->parent);
+    if (parent_layout != NULL)
+        dht_layout_unref(this, parent_layout);
 
-        ret = dht_disk_layout_extract_for_subvol (this, parent_layout,
-                                                  hashed_subvol,
-                                                  &parent_disk_layout);
-        if (ret == -1) {
-                local->op_errno = EINVAL;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "%s (%s/%s) (path: %s): "
-                        "extracting in-memory layout of parent failed. ",
-                        gf_fop_list[stub->fop], pgfid, loc->name, loc->path);
-                goto err;
-        }
-
-        memcpy ((void *)local->parent_disk_layout, (void *)parent_disk_layout,
-                sizeof (local->parent_disk_layout));
-
-        dht_layout_unref (this, parent_layout);
-        parent_layout = NULL;
+    return -1;
+}
 
-        ret = dict_set_str (local->params, GF_PREOP_PARENT_KEY,
-                            conf->xattr_name);
-        if (ret < 0) {
-                local->op_errno = -ret;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "%s (%s/%s) (path: %s): "
-                        "setting %s key in params dictionary failed. ",
-                        gf_fop_list[stub->fop], pgfid, loc->name, loc->path,
-                        GF_PREOP_PARENT_KEY);
-                goto err;
-        }
+int
+dht_mknod(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
+          dev_t rdev, mode_t umask, dict_t *params)
+{
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    int i = 0;
+    int ret = 0;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
 
-        ret = dict_set_bin (local->params, conf->xattr_name, parent_disk_layout,
-                            4 * 4);
-        if (ret < 0) {
-                local->op_errno = -ret;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "%s (%s/%s) (path: %s): "
-                        "setting parent-layout in params dictionary failed. ",
-                        gf_fop_list[stub->fop], pgfid, loc->name, loc->path);
-                goto err;
-        }
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
 
-        parent_disk_layout = NULL;
-        local->hashed_subvol = hashed_subvol;
+    conf = this->private;
 
-        local->current = &local->lock[0];
-        ret = dht_protect_namespace (frame, loc, hashed_subvol,
-                                     &local->current->ns, dht_call_mkdir_stub);
-        if (ret < 0)
-                goto err;
+    dht_get_du_info(frame, this, loc);
 
-        return 0;
-err:
+    local = dht_local_init(frame, loc, NULL, GF_FOP_MKNOD);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        if (parent_disk_layout != NULL)
-                GF_FREE (parent_disk_layout);
+    subvol = dht_subvol_get_hashed(this, loc);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     loc->path);
+        op_errno = EIO;
+        goto err;
+    }
 
-        if (parent_layout != NULL)
-                dht_layout_unref (this, parent_layout);
+    /* Post remove-brick, the client layout may not be in sync with
+     * disk layout because of lack of lookup. Hence,a mknod call
+     * may fall on the decommissioned brick.  Hence, if the
+     * hashed_subvol is part of decommissioned bricks  list, do a
+     * lookup on parent dir. If a fix-layout is already done by the
+     * remove-brick process, the parent directory layout will be in
+     * sync with that of the disk. If fix-layout is still ending
+     * on the parent directory, we can let the file get created on
+     * the decommissioned brick which will be eventually migrated to
+     * non-decommissioned brick based on the new layout.
+     */
 
-        return -1;
-}
+    if (conf->decommission_subvols_cnt) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->decommissioned_bricks[i] &&
+                conf->decommissioned_bricks[i] == subvol) {
+                gf_msg_debug(this->name, 0,
+                             "hashed subvol:%s is "
+                             "part of decommission brick list for "
+                             "file: %s",
+                             subvol->name, loc->path);
+
+                /* dht_refresh_layout needs directory info in
+                 * local->loc. Hence, storing the parent_loc in
+                 * local->loc and storing the create context in
+                 * local->loc2. We will restore this information
+                 * in dht_creation do */
+
+                ret = loc_copy(&local->loc2, &local->loc);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                           "loc_copy failed %s", loc->path);
 
-int
-dht_mknod (call_frame_t *frame, xlator_t *this,
-           loc_t *loc, mode_t mode, dev_t rdev, mode_t umask, dict_t *params)
-{
-        xlator_t       *subvol     = NULL;
-        int             op_errno   = -1;
-        int             i          = 0;
-        int             ret        = 0;
-        dht_local_t    *local      = NULL;
-        dht_conf_t     *conf       = NULL;
+                    goto err;
+                }
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
+                local->params = dict_ref(params);
+                local->rdev = rdev;
+                local->mode = mode;
+                local->umask = umask;
 
-        conf = this->private;
+                loc_wipe(&local->loc);
 
-        dht_get_du_info (frame, this, loc);
+                ret = dht_build_parent_loc(this, &local->loc, loc, &op_errno);
 
-        local = dht_local_init (frame, loc, NULL, GF_FOP_MKNOD);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_LOC_FAILED,
+                           "parent loc build failed");
+                    goto err;
+                }
 
-        subvol = dht_subvol_get_hashed (this, loc);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              loc->path);
-                op_errno = EIO;
-                goto err;
-        }
+                ret = dht_mknod_lock(frame, subvol);
 
-        /* Post remove-brick, the client layout may not be in sync with
-        * disk layout because of lack of lookup. Hence,a mknod call
-        * may fall on the decommissioned brick.  Hence, if the
-        * hashed_subvol is part of decommissioned bricks  list, do a
-        * lookup on parent dir. If a fix-layout is already done by the
-        * remove-brick process, the parent directory layout will be in
-        * sync with that of the disk. If fix-layout is still ending
-        * on the parent directory, we can let the file get created on
-        * the decommissioned brick which will be eventually migrated to
-        * non-decommissioned brick based on the new layout.
-        */
+                if (ret < 0) {
+                    gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INODE_LK_ERROR,
+                           "locking parent failed");
+                    goto err;
+                }
 
-        if (conf->decommission_subvols_cnt) {
-            for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->decommissioned_bricks[i] &&
-                        conf->decommissioned_bricks[i] == subvol) {
-
-                        gf_msg_debug (this->name, 0, "hashed subvol:%s is "
-                                      "part of decommission brick list for "
-                                      "file: %s", subvol->name, loc->path);
-
-                        /* dht_refresh_layout needs directory info in
-                         * local->loc. Hence, storing the parent_loc in
-                         * local->loc and storing the create context in
-                         * local->loc2. We will restore this information
-                         * in dht_creation do */
-
-                        ret = loc_copy (&local->loc2, &local->loc);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                        DHT_MSG_NO_MEMORY,
-                                        "loc_copy failed %s", loc->path);
-
-                                goto err;
-                        }
-
-                        local->params = dict_ref (params);
-                        local->rdev = rdev;
-                        local->mode = mode;
-                        local->umask = umask;
-
-                        loc_wipe (&local->loc);
-
-                        ret = dht_build_parent_loc (this, &local->loc, loc,
-                                                                 &op_errno);
-
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                        DHT_MSG_LOC_FAILED,
-                                        "parent loc build failed");
-                                goto err;
-                        }
-
-                        ret = dht_mknod_lock (frame, subvol);
-
-                        if (ret < 0) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_INODE_LK_ERROR,
-                                        "locking parent failed");
-                                goto err;
-                        }
-
-                        goto done;
-               }
+                goto done;
             }
         }
+    }
 
-        dht_mknod_wind_to_avail_subvol (frame, this, subvol, loc, rdev, mode,
-                                        umask, params);
+    dht_mknod_wind_to_avail_subvol(frame, this, subvol, loc, rdev, mode, umask,
+                                   params);
 
 done:
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (mknod, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(mknod, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_symlink (call_frame_t *frame, xlator_t *this,
-             const char *linkname, loc_t *loc, mode_t umask, dict_t *params)
+dht_symlink(call_frame_t *frame, xlator_t *this, const char *linkname,
+            loc_t *loc, mode_t umask, dict_t *params)
 {
-        xlator_t    *subvol = NULL;
-        int          op_errno = -1;
-        dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
 
-        local = dht_local_init (frame, loc, NULL, GF_FOP_SYMLINK);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    local = dht_local_init(frame, loc, NULL, GF_FOP_SYMLINK);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        subvol = dht_subvol_get_hashed (this, loc);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              loc->path);
-                op_errno = EIO;
-                goto err;
-        }
+    subvol = dht_subvol_get_hashed(this, loc);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     loc->path);
+        op_errno = EIO;
+        goto err;
+    }
 
-        gf_msg_trace (this->name, 0,
-                      "creating %s on %s", loc->path, subvol->name);
+    gf_msg_trace(this->name, 0, "creating %s on %s", loc->path, subvol->name);
 
-        STACK_WIND_COOKIE (frame, dht_newfile_cbk, (void *)subvol, subvol,
-                           subvol->fops->symlink, linkname, loc, umask,
-                           params);
+    STACK_WIND_COOKIE(frame, dht_newfile_cbk, (void *)subvol, subvol,
+                      subvol->fops->symlink, linkname, loc, umask, params);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (link, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(link, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag,
-            dict_t *xdata)
+dht_unlink(call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag,
+           dict_t *xdata)
 {
-        xlator_t    *cached_subvol = NULL;
-        int          op_errno = -1;
-        dht_local_t *local = NULL;
+    xlator_t *cached_subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
 
-        local = dht_local_init (frame, loc, NULL, GF_FOP_UNLINK);
-        if (!local) {
-                op_errno = ENOMEM;
+    local = dht_local_init(frame, loc, NULL, GF_FOP_UNLINK);
+    if (!local) {
+        op_errno = ENOMEM;
 
-                goto err;
-        }
+        goto err;
+    }
 
-        cached_subvol = local->cached_subvol;
-        if (!cached_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
+    cached_subvol = local->cached_subvol;
+    if (!cached_subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        local->flags = xflag;
-        STACK_WIND_COOKIE (frame, dht_unlink_cbk, cached_subvol, cached_subvol,
-                           cached_subvol->fops->unlink, loc, xflag, xdata);
+    local->flags = xflag;
+    STACK_WIND_COOKIE(frame, dht_unlink_cbk, cached_subvol, cached_subvol,
+                      cached_subvol->fops->unlink, loc, xflag, xdata);
 
-        return 0;
+    return 0;
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (unlink, frame, -1, op_errno, NULL, NULL, NULL);
-
-        return 0;
-}
-
-int
-dht_link_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-              int op_ret, int op_errno,
-              inode_t *inode, struct iatt *stbuf, struct iatt *preparent,
-              struct iatt *postparent, dict_t *xdata)
-{
-        dht_local_t  *local = NULL;
-        int           ret = -1;
-        gf_boolean_t  stbuf_merged = _gf_false;
-        xlator_t     *subvol = NULL;
-        call_frame_t *cleanup_frame = NULL;
-        dht_local_t  *cleanup_local = NULL;
-
-        local = frame->local;
-
-        if (op_ret == -1) {
-                /* Remove the linkto if exists */
-                if (local->linked) {
-                        cleanup_frame = create_frame (this, this->ctx->pool);
-                        if (cleanup_frame) {
-                                cleanup_local = dht_local_init (cleanup_frame,
-                                                                &local->loc2,
-                                                                NULL, 0);
-                                if (!cleanup_local || !local->link_subvol) {
-                                        DHT_STACK_DESTROY (cleanup_frame);
-                                        goto out;
-                                }
-                                cleanup_local->link_subvol = local->link_subvol;
-                                FRAME_SU_DO (cleanup_frame, dht_local_t);
-                                ret = synctask_new (this->ctx->env,
-                                                    dht_remove_stale_linkto,
-                                                    dht_remove_stale_linkto_cbk,
-                                                    cleanup_frame,
-                                                    cleanup_frame);
-                        }
-                }
-                /* No continuation on DHT inode missing errors, as we should
-                 * then have a good stbuf that states P2 happened. We would
-                 * get inode missing if, the file completed migrated between
-                 * the lookup and the link call */
-                goto out;
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(unlink, frame, -1, op_errno, NULL, NULL, NULL);
+
+    return 0;
+}
+
+int
+dht_link_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+             int op_errno, inode_t *inode, struct iatt *stbuf,
+             struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
+{
+    dht_local_t *local = NULL;
+    int ret = -1;
+    gf_boolean_t stbuf_merged = _gf_false;
+    xlator_t *subvol = NULL;
+    call_frame_t *cleanup_frame = NULL;
+    dht_local_t *cleanup_local = NULL;
+
+    local = frame->local;
+
+    if (op_ret == -1) {
+        /* Remove the linkto if exists */
+        if (local->linked) {
+            cleanup_frame = create_frame(this, this->ctx->pool);
+            if (cleanup_frame) {
+                cleanup_local = dht_local_init(cleanup_frame, &local->loc2,
+                                               NULL, 0);
+                if (!cleanup_local || !local->link_subvol) {
+                    DHT_STACK_DESTROY(cleanup_frame);
+                    goto out;
+                }
+                cleanup_local->link_subvol = local->link_subvol;
+                FRAME_SU_DO(cleanup_frame, dht_local_t);
+                ret = synctask_new(this->ctx->env, dht_remove_stale_linkto,
+                                   dht_remove_stale_linkto_cbk, cleanup_frame,
+                                   cleanup_frame);
+            }
         }
-
-        /* Update parent on success, even if P1/2 checks are positive.
-         * The second call on success will further update the parent */
-        if (local->loc.parent) {
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           preparent, 0);
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           postparent, 1);
-        }
-
-        /* Update linkto attrs, if this is the first call and non-P2,
-         * if we detect P2 then we need to trust the attrs from the
-         * second call, not the first */
-        if (local->linked == _gf_true &&
-            ((local->call_cnt == 1 && !IS_DHT_MIGRATION_PHASE2 (stbuf))
-             || (local->call_cnt != 1 &&
-                 IS_DHT_MIGRATION_PHASE2 (&local->stbuf)))) {
-                dht_iatt_merge (this, &local->stbuf, stbuf);
-                stbuf_merged = _gf_true;
-                dht_linkfile_attr_heal (frame, this);
-        }
-
-        /* No further P1/2 checks if we are in the second iteration of
-         * the call */
-        if (local->call_cnt != 1) {
-                goto out;
+        /* No continuation on DHT inode missing errors, as we should
+         * then have a good stbuf that states P2 happened. We would
+         * get inode missing if, the file completed migrated between
+         * the lookup and the link call */
+        goto out;
+    }
+
+    /* Update parent on success, even if P1/2 checks are positive.
+     * The second call on success will further update the parent */
+    if (local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, preparent, 0);
+        dht_inode_ctx_time_update(local->loc.parent, this, postparent, 1);
+    }
+
+    /* Update linkto attrs, if this is the first call and non-P2,
+     * if we detect P2 then we need to trust the attrs from the
+     * second call, not the first */
+    if (local->linked == _gf_true &&
+        ((local->call_cnt == 1 && !IS_DHT_MIGRATION_PHASE2(stbuf)) ||
+         (local->call_cnt != 1 && IS_DHT_MIGRATION_PHASE2(&local->stbuf)))) {
+        dht_iatt_merge(this, &local->stbuf, stbuf);
+        stbuf_merged = _gf_true;
+        dht_linkfile_attr_heal(frame, this);
+    }
+
+    /* No further P1/2 checks if we are in the second iteration of
+     * the call */
+    if (local->call_cnt != 1) {
+        goto out;
+    } else {
+        /* Preserve the return values, in case the migration decides
+         * to recreate the link on the same subvol that the current
+         * hased for the link was created on. */
+        dht_iatt_merge(this, &local->preparent, preparent);
+        dht_iatt_merge(this, &local->postparent, postparent);
+        if (!stbuf_merged) {
+            dht_iatt_merge(this, &local->stbuf, stbuf);
+            stbuf_merged = _gf_true;
+        }
+
+        local->inode = inode_ref(inode);
+    }
+
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
+    local->rebalance.target_op_fn = dht_link2;
+    dht_set_local_rebalance(this, local, stbuf, preparent, postparent, xdata);
+
+    /* Check if the rebalance phase2 is true */
+    if (IS_DHT_MIGRATION_PHASE2(stbuf)) {
+        ret = dht_inode_ctx_get_mig_info(this, local->loc.inode, NULL, &subvol);
+        if (!subvol) {
+            /* Phase 2 of migration */
+            ret = dht_rebalance_complete_check(this, frame);
+            if (!ret)
+                return 0;
         } else {
-                /* Preserve the return values, in case the migration decides
-                 * to recreate the link on the same subvol that the current
-                 * hased for the link was created on. */
-                dht_iatt_merge (this, &local->preparent, preparent);
-                dht_iatt_merge (this, &local->postparent, postparent);
-                if (!stbuf_merged) {
-                        dht_iatt_merge (this, &local->stbuf, stbuf);
-                        stbuf_merged = _gf_true;
-                }
-
-                local->inode = inode_ref (inode);
-        }
-
-        local->op_ret = op_ret;
-        local->op_errno = op_errno;
-        local->rebalance.target_op_fn = dht_link2;
-        dht_set_local_rebalance (this, local, stbuf, preparent,
-                                 postparent, xdata);
-
-        /* Check if the rebalance phase2 is true */
-        if (IS_DHT_MIGRATION_PHASE2 (stbuf)) {
-                ret = dht_inode_ctx_get_mig_info (this, local->loc.inode, NULL,
-                                                  &subvol);
-                if (!subvol) {
-                        /* Phase 2 of migration */
-                        ret = dht_rebalance_complete_check (this, frame);
-                        if (!ret)
-                                return 0;
-                } else {
-                        dht_link2 (this, subvol, frame, 0);
-                        return 0;
-                }
-        }
-
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (stbuf)) {
-                ret = dht_inode_ctx_get_mig_info (this, local->loc.inode, NULL,
-                                                  &subvol);
-                if (subvol) {
-                        dht_link2 (this, subvol, frame, 0);
-                        return 0;
-                }
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
+            dht_link2(this, subvol, frame, 0);
+            return 0;
+        }
+    }
+
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(stbuf)) {
+        ret = dht_inode_ctx_get_mig_info(this, local->loc.inode, NULL, &subvol);
+        if (subvol) {
+            dht_link2(this, subvol, frame, 0);
+            return 0;
+        }
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 out:
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
 
-        dht_set_fixed_dir_stat (preparent);
-        dht_set_fixed_dir_stat (postparent);
-        DHT_STACK_UNWIND (link, frame, op_ret, op_errno, inode, stbuf,
-                          preparent, postparent, NULL);
+    dht_set_fixed_dir_stat(preparent);
+    dht_set_fixed_dir_stat(postparent);
+    DHT_STACK_UNWIND(link, frame, op_ret, op_errno, inode, stbuf, preparent,
+                     postparent, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_link2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_link2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local  = NULL;
-        int          op_errno = EINVAL;
-
-        local = frame->local;
-        if (!local)
-                goto err;
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
 
-        op_errno = local->op_errno;
+    local = frame->local;
+    if (!local)
+        goto err;
 
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                dht_set_fixed_dir_stat (&local->preparent);
-                dht_set_fixed_dir_stat (&local->postparent);
+    op_errno = local->op_errno;
 
-                DHT_STACK_UNWIND (link, frame, local->op_ret, op_errno,
-                                  local->inode,
-                                  &local->stbuf, &local->preparent,
-                                  &local->postparent, NULL);
-                return 0;
-        }
-
-        if (subvol == NULL) {
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        /* Second call to create link file could result in EEXIST as the
-         * first call created the linkto in the currently
-         * migrating subvol, which could be the new hashed subvol */
-        if (local->link_subvol == subvol) {
-                DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
-                dht_set_fixed_dir_stat (&local->preparent);
-                dht_set_fixed_dir_stat (&local->postparent);
-                DHT_STACK_UNWIND (link, frame, 0, 0, local->inode,
-                                  &local->stbuf, &local->preparent,
-                                  &local->postparent, NULL);
-
-                return 0;
-        }
-
-        local->call_cnt = 2;
-
-        STACK_WIND (frame, dht_link_cbk, subvol, subvol->fops->link,
-                    &local->loc, &local->loc2, local->xattr_req);
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        dht_set_fixed_dir_stat(&local->preparent);
+        dht_set_fixed_dir_stat(&local->postparent);
 
+        DHT_STACK_UNWIND(link, frame, local->op_ret, op_errno, local->inode,
+                         &local->stbuf, &local->preparent, &local->postparent,
+                         NULL);
         return 0;
-err:
-        DHT_STACK_UNWIND (link, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL, NULL);
+    }
 
-        return 0;
-}
+    if (subvol == NULL) {
+        op_errno = EINVAL;
+        goto err;
+    }
 
-int
-dht_link_linkfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int op_ret, int op_errno,
-                       inode_t *inode, struct iatt *stbuf,
-                       struct iatt *preparent, struct iatt *postparent,
-                       dict_t *xdata)
-{
-        dht_local_t  *local = NULL;
-        xlator_t     *srcvol = NULL;
+    /* Second call to create link file could result in EEXIST as the
+     * first call created the linkto in the currently
+     * migrating subvol, which could be the new hashed subvol */
+    if (local->link_subvol == subvol) {
+        DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
+        dht_set_fixed_dir_stat(&local->preparent);
+        dht_set_fixed_dir_stat(&local->postparent);
+        DHT_STACK_UNWIND(link, frame, 0, 0, local->inode, &local->stbuf,
+                         &local->preparent, &local->postparent, NULL);
 
-        if (op_ret == -1)
-                goto err;
+        return 0;
+    }
 
-        local = frame->local;
-        srcvol = local->linkfile.srcvol;
+    local->call_cnt = 2;
 
-        STACK_WIND (frame, dht_link_cbk, srcvol, srcvol->fops->link,
-                    &local->loc, &local->loc2, local->xattr_req);
-
-        return 0;
+    STACK_WIND(frame, dht_link_cbk, subvol, subvol->fops->link, &local->loc,
+               &local->loc2, local->xattr_req);
 
+    return 0;
 err:
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
-        dht_set_fixed_dir_stat (preparent);
-        dht_set_fixed_dir_stat (postparent);
-        DHT_STACK_UNWIND (link, frame, op_ret, op_errno, inode, stbuf, preparent,
-                          postparent, xdata);
+    DHT_STACK_UNWIND(link, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_link (call_frame_t *frame, xlator_t *this,
-          loc_t *oldloc, loc_t *newloc, dict_t *xdata)
+dht_link_linkfile_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int op_ret, int op_errno, inode_t *inode,
+                      struct iatt *stbuf, struct iatt *preparent,
+                      struct iatt *postparent, dict_t *xdata)
 {
-        xlator_t    *cached_subvol = NULL;
-        xlator_t    *hashed_subvol = NULL;
-        int          op_errno = -1;
-        int          ret = -1;
-        dht_local_t *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (oldloc, err);
-        VALIDATE_OR_GOTO (newloc, err);
+    dht_local_t *local = NULL;
+    xlator_t *srcvol = NULL;
 
-        local = dht_local_init (frame, oldloc, NULL, GF_FOP_LINK);
-        if (!local) {
-                op_errno = ENOMEM;
+    if (op_ret == -1)
+        goto err;
 
-                goto err;
-        }
-        local->call_cnt = 1;
+    local = frame->local;
+    srcvol = local->linkfile.srcvol;
 
-        cached_subvol = local->cached_subvol;
-        if (!cached_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", oldloc->path);
-                op_errno = ENOENT;
-                goto err;
-        }
+    STACK_WIND(frame, dht_link_cbk, srcvol, srcvol->fops->link, &local->loc,
+               &local->loc2, local->xattr_req);
 
-        hashed_subvol = dht_subvol_get_hashed (this, newloc);
-        if (!hashed_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              newloc->path);
-                op_errno = EIO;
-                goto err;
-        }
+    return 0;
 
-        ret = loc_copy (&local->loc2, newloc);
-        if (ret == -1) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        if (hashed_subvol != cached_subvol) {
-                gf_uuid_copy (local->gfid, oldloc->inode->gfid);
-                dht_linkfile_create (frame, dht_link_linkfile_cbk, this,
-                                     cached_subvol, hashed_subvol, newloc);
-        } else {
-                STACK_WIND (frame, dht_link_cbk,
-                            cached_subvol, cached_subvol->fops->link,
-                            oldloc, newloc, xdata);
-        }
-
-        return 0;
+err:
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
+    dht_set_fixed_dir_stat(preparent);
+    dht_set_fixed_dir_stat(postparent);
+    DHT_STACK_UNWIND(link, frame, op_ret, op_errno, inode, stbuf, preparent,
+                     postparent, xdata);
+
+    return 0;
+}
+
+int
+dht_link(call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc,
+         dict_t *xdata)
+{
+    xlator_t *cached_subvol = NULL;
+    xlator_t *hashed_subvol = NULL;
+    int op_errno = -1;
+    int ret = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(oldloc, err);
+    VALIDATE_OR_GOTO(newloc, err);
+
+    local = dht_local_init(frame, oldloc, NULL, GF_FOP_LINK);
+    if (!local) {
+        op_errno = ENOMEM;
+
+        goto err;
+    }
+    local->call_cnt = 1;
+
+    cached_subvol = local->cached_subvol;
+    if (!cached_subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     oldloc->path);
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    hashed_subvol = dht_subvol_get_hashed(this, newloc);
+    if (!hashed_subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     newloc->path);
+        op_errno = EIO;
+        goto err;
+    }
+
+    ret = loc_copy(&local->loc2, newloc);
+    if (ret == -1) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    if (hashed_subvol != cached_subvol) {
+        gf_uuid_copy(local->gfid, oldloc->inode->gfid);
+        dht_linkfile_create(frame, dht_link_linkfile_cbk, this, cached_subvol,
+                            hashed_subvol, newloc);
+    } else {
+        STACK_WIND(frame, dht_link_cbk, cached_subvol,
+                   cached_subvol->fops->link, oldloc, newloc, xdata);
+    }
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (link, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(link, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno,
-                fd_t *fd, inode_t *inode, struct iatt *stbuf,
-                struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
+dht_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+               int op_errno, fd_t *fd, inode_t *inode, struct iatt *stbuf,
+               struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
 {
-        xlator_t     *prev = NULL;
-        int           ret = -1;
-        dht_local_t  *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
-        if (!local) {
-                op_ret = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
+    local = frame->local;
+    if (!local) {
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
 
-        if (op_ret == -1)
-                goto out;
+    if (op_ret == -1)
+        goto out;
 
-        prev = cookie;
+    prev = cookie;
 
-        if (local->loc.parent) {
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           preparent, 0);
+    if (local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, preparent, 0);
 
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           postparent, 1);
-        }
+        dht_inode_ctx_time_update(local->loc.parent, this, postparent, 1);
+    }
 
-        ret = dht_fd_ctx_set (this, fd, prev);
-        if (ret != 0) {
-                gf_msg_debug (this->name, 0, "Possible fd leak. "
-                              "Could not set fd ctx for subvol %s",
-                              prev->name);
-        }
+    ret = dht_fd_ctx_set(this, fd, prev);
+    if (ret != 0) {
+        gf_msg_debug(this->name, 0,
+                     "Possible fd leak. "
+                     "Could not set fd ctx for subvol %s",
+                     prev->name);
+    }
 
+    ret = dht_layout_preset(this, prev, inode);
+    if (ret != 0) {
+        gf_msg_debug(this->name, 0, "could not set preset layout for subvol %s",
+                     prev->name);
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
 
-        ret = dht_layout_preset (this, prev, inode);
-        if (ret != 0) {
-                gf_msg_debug (this->name, 0,
-                              "could not set preset layout for subvol %s",
-                              prev->name);
-                op_ret   = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
-
-        local->op_errno = op_errno;
+    local->op_errno = op_errno;
 
-        if (local->linked == _gf_true) {
-                local->stbuf = *stbuf;
-                dht_linkfile_attr_heal (frame, this);
-        }
+    if (local->linked == _gf_true) {
+        local->stbuf = *stbuf;
+        dht_linkfile_attr_heal(frame, this);
+    }
 out:
 
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
-        dht_set_fixed_dir_stat (preparent);
-        dht_set_fixed_dir_stat (postparent);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
+    dht_set_fixed_dir_stat(preparent);
+    dht_set_fixed_dir_stat(postparent);
 
-        if (local && local->lock[0].layout.parent_layout.locks) {
-                /* store op_errno for failure case*/
-                local->op_errno = op_errno;
-                local->refresh_layout_unlock (frame, this, op_ret, 1);
+    if (local && local->lock[0].layout.parent_layout.locks) {
+        /* store op_errno for failure case*/
+        local->op_errno = op_errno;
+        local->refresh_layout_unlock(frame, this, op_ret, 1);
 
-                if (op_ret == 0) {
-                        DHT_STACK_UNWIND (create, frame, op_ret, op_errno, fd,
-                                          inode, stbuf, preparent, postparent,
-                                          xdata);
-                }
-        } else {
-                DHT_STACK_UNWIND (create, frame, op_ret, op_errno, fd, inode,
-                                  stbuf, preparent, postparent, xdata);
+        if (op_ret == 0) {
+            DHT_STACK_UNWIND(create, frame, op_ret, op_errno, fd, inode, stbuf,
+                             preparent, postparent, xdata);
         }
-        return 0;
+    } else {
+        DHT_STACK_UNWIND(create, frame, op_ret, op_errno, fd, inode, stbuf,
+                         preparent, postparent, xdata);
+    }
+    return 0;
 }
 
 int
-dht_create_linkfile_create_cbk (call_frame_t *frame, void *cookie,
-                                xlator_t *this,
-                                int32_t op_ret, int32_t op_errno,
-                                inode_t *inode, struct iatt *stbuf,
-                                struct iatt *preparent, struct iatt *postparent,
-                                dict_t *xdata)
+dht_create_linkfile_create_cbk(call_frame_t *frame, void *cookie,
+                               xlator_t *this, int32_t op_ret, int32_t op_errno,
+                               inode_t *inode, struct iatt *stbuf,
+                               struct iatt *preparent, struct iatt *postparent,
+                               dict_t *xdata)
 {
-        dht_local_t     *local             = NULL;
-        xlator_t        *cached_subvol     = NULL;
-        dht_conf_t      *conf              = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *cached_subvol = NULL;
+    dht_conf_t *conf = NULL;
 
-        local = frame->local;
-        if (!local) {
-                op_errno = EINVAL;
-                goto err;
-        }
+    local = frame->local;
+    if (!local) {
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        if (op_ret == -1) {
-                local->op_errno = op_errno;
-                goto err;
-        }
+    if (op_ret == -1) {
+        local->op_errno = op_errno;
+        goto err;
+    }
 
-        conf = this->private;
-        if (!conf) {
-                local->op_errno = EINVAL;
-                op_errno = EINVAL;
-                goto err;
-        }
+    conf = this->private;
+    if (!conf) {
+        local->op_errno = EINVAL;
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        cached_subvol = local->cached_subvol;
+    cached_subvol = local->cached_subvol;
 
-        if (local->params) {
-                dict_del (local->params, conf->link_xattr_name);
-                dict_del (local->params, GLUSTERFS_INTERNAL_FOP_KEY);
-        }
+    if (local->params) {
+        dict_del(local->params, conf->link_xattr_name);
+        dict_del(local->params, GLUSTERFS_INTERNAL_FOP_KEY);
+    }
 
-        STACK_WIND_COOKIE (frame, dht_create_cbk, cached_subvol,
-                           cached_subvol, cached_subvol->fops->create,
-                           &local->loc, local->flags, local->mode,
-                           local->umask, local->fd, local->params);
+    STACK_WIND_COOKIE(frame, dht_create_cbk, cached_subvol, cached_subvol,
+                      cached_subvol->fops->create, &local->loc, local->flags,
+                      local->mode, local->umask, local->fd, local->params);
 
-        return 0;
+    return 0;
 err:
-        if (local && local->lock[0].layout.parent_layout.locks) {
-                local->refresh_layout_unlock (frame, this, -1, 1);
-        } else {
-                DHT_STACK_UNWIND (create, frame, -1,
-                                  op_errno, NULL, NULL, NULL,
-                                  NULL, NULL, NULL);
-        }
-        return 0;
+    if (local && local->lock[0].layout.parent_layout.locks) {
+        local->refresh_layout_unlock(frame, this, -1, 1);
+    } else {
+        DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+                         NULL, NULL);
+    }
+    return 0;
 }
 
 int
-dht_create_wind_to_avail_subvol (call_frame_t *frame, xlator_t *this,
-                                 xlator_t *subvol, loc_t *loc, int32_t flags,
-                                 mode_t mode, mode_t umask, fd_t *fd,
-                                 dict_t *params)
+dht_create_wind_to_avail_subvol(call_frame_t *frame, xlator_t *this,
+                                xlator_t *subvol, loc_t *loc, int32_t flags,
+                                mode_t mode, mode_t umask, fd_t *fd,
+                                dict_t *params)
 {
-        dht_local_t     *local          = NULL;
-        xlator_t        *avail_subvol   = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *avail_subvol = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (!dht_is_subvol_filled (this, subvol)) {
-                gf_msg_debug (this->name, 0,
-                              "creating %s on %s", loc->path,
-                              subvol->name);
+    if (!dht_is_subvol_filled(this, subvol)) {
+        gf_msg_debug(this->name, 0, "creating %s on %s", loc->path,
+                     subvol->name);
 
-                STACK_WIND_COOKIE (frame, dht_create_cbk, subvol,
-                                   subvol, subvol->fops->create,
-                                   loc, flags, mode, umask, fd, params);
+        STACK_WIND_COOKIE(frame, dht_create_cbk, subvol, subvol,
+                          subvol->fops->create, loc, flags, mode, umask, fd,
+                          params);
 
-        } else {
-                avail_subvol = dht_free_disk_available_subvol (this, subvol, local);
+    } else {
+        avail_subvol = dht_free_disk_available_subvol(this, subvol, local);
 
-                if (avail_subvol != subvol) {
-                        local->params = dict_ref (params);
-                        local->flags = flags;
-                        local->mode = mode;
-                        local->umask = umask;
-                        local->cached_subvol = avail_subvol;
-                        local->hashed_subvol = subvol;
+        if (avail_subvol != subvol) {
+            local->params = dict_ref(params);
+            local->flags = flags;
+            local->mode = mode;
+            local->umask = umask;
+            local->cached_subvol = avail_subvol;
+            local->hashed_subvol = subvol;
 
-                        gf_msg_debug (this->name, 0,
-                                      "creating %s on %s (link at %s)", loc->path,
-                                      avail_subvol->name, subvol->name);
+            gf_msg_debug(this->name, 0, "creating %s on %s (link at %s)",
+                         loc->path, avail_subvol->name, subvol->name);
 
-                        dht_linkfile_create (frame, dht_create_linkfile_create_cbk,
-                                             this, avail_subvol, subvol, loc);
+            dht_linkfile_create(frame, dht_create_linkfile_create_cbk, this,
+                                avail_subvol, subvol, loc);
 
-                        goto out;
-                }
+            goto out;
+        }
 
-                gf_msg_debug (this->name, 0,
-                              "creating %s on %s", loc->path, subvol->name);
+        gf_msg_debug(this->name, 0, "creating %s on %s", loc->path,
+                     subvol->name);
 
-                STACK_WIND_COOKIE (frame, dht_create_cbk, subvol,
-                                   subvol, subvol->fops->create,
-                                   loc, flags, mode, umask, fd, params);
-        }
+        STACK_WIND_COOKIE(frame, dht_create_cbk, subvol, subvol,
+                          subvol->fops->create, loc, flags, mode, umask, fd,
+                          params);
+    }
 out:
-        return 0;
+    return 0;
 }
 
 int
-dht_build_parent_loc (xlator_t *this, loc_t *parent, loc_t *child,
-                      int32_t *op_errno)
+dht_build_parent_loc(xlator_t *this, loc_t *parent, loc_t *child,
+                     int32_t *op_errno)
 {
-        inode_table_t   *table = NULL;
-        int     ret = -1;
+    inode_table_t *table = NULL;
+    int ret = -1;
 
-        if (!parent || !child) {
-                if (op_errno)
-                        *op_errno = EINVAL;
-                goto out;
-        }
+    if (!parent || !child) {
+        if (op_errno)
+            *op_errno = EINVAL;
+        goto out;
+    }
 
-        if (child->parent) {
-                parent->inode = inode_ref (child->parent);
-                if (!parent->inode) {
-                        if (op_errno)
-                                *op_errno = EINVAL;
-                        goto out;
-                }
+    if (child->parent) {
+        parent->inode = inode_ref(child->parent);
+        if (!parent->inode) {
+            if (op_errno)
+                *op_errno = EINVAL;
+            goto out;
+        }
 
-                gf_uuid_copy (parent->gfid, child->pargfid);
+        gf_uuid_copy(parent->gfid, child->pargfid);
 
-                ret = 0;
+        ret = 0;
 
-                goto out;
-        } else {
-                if (gf_uuid_is_null (child->pargfid)) {
-                        if (op_errno)
-                                *op_errno = EINVAL;
-                        goto out;
-                }
+        goto out;
+    } else {
+        if (gf_uuid_is_null(child->pargfid)) {
+            if (op_errno)
+                *op_errno = EINVAL;
+            goto out;
+        }
 
-                table = this->itable;
+        table = this->itable;
 
-                if (!table) {
-                        if (op_errno) {
-                                *op_errno = EINVAL;
-                                goto out;
-                        }
-                }
+        if (!table) {
+            if (op_errno) {
+                *op_errno = EINVAL;
+                goto out;
+            }
+        }
 
-                parent->inode = inode_find (table, child->pargfid);
+        parent->inode = inode_find(table, child->pargfid);
 
-                if (!parent->inode) {
-                         if (op_errno) {
-                                *op_errno = EINVAL;
-                                goto out;
-                        }
-                }
+        if (!parent->inode) {
+            if (op_errno) {
+                *op_errno = EINVAL;
+                goto out;
+            }
+        }
 
-                gf_uuid_copy (parent->gfid, child->pargfid);
+        gf_uuid_copy(parent->gfid, child->pargfid);
 
-                ret = 0;
-        }
+        ret = 0;
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
-
 int32_t
-dht_create_do (call_frame_t *frame)
+dht_create_do(call_frame_t *frame)
 {
-        dht_local_t     *local          = NULL;
-        dht_layout_t    *refreshed      = NULL;
-        xlator_t        *subvol         = NULL;
-        xlator_t        *this           = NULL;
-        dht_conf_t      *conf           = NULL;
-        dht_methods_t   *methods        = NULL;
+    dht_local_t *local = NULL;
+    dht_layout_t *refreshed = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        this = THIS;
+    this = THIS;
 
-        conf = this->private;
+    conf = this->private;
 
-        GF_VALIDATE_OR_GOTO (this->name, conf, err);
+    GF_VALIDATE_OR_GOTO(this->name, conf, err);
 
-        methods = &(conf->methods);
+    methods = &(conf->methods);
 
-        /* We don't need parent_loc anymore */
-        loc_wipe (&local->loc);
+    /* We don't need parent_loc anymore */
+    loc_wipe(&local->loc);
 
-        loc_copy (&local->loc, &local->loc2);
+    loc_copy(&local->loc, &local->loc2);
 
-        loc_wipe (&local->loc2);
+    loc_wipe(&local->loc2);
 
-        refreshed = local->selfheal.refreshed_layout;
+    refreshed = local->selfheal.refreshed_layout;
 
-        subvol = methods->layout_search (this, refreshed, local->loc.name);
+    subvol = methods->layout_search(this, refreshed, local->loc.name);
 
-        if (!subvol) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_HASHED_SUBVOL_GET_FAILED, "no subvolume in "
-                        "layout for path=%s", local->loc.path);
-                local->op_errno = ENOENT;
-                goto err;
-        }
+    if (!subvol) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+               "no subvolume in "
+               "layout for path=%s",
+               local->loc.path);
+        local->op_errno = ENOENT;
+        goto err;
+    }
 
-        dht_create_wind_to_avail_subvol (frame, this, subvol, &local->loc,
-                                         local->flags, local->mode,
-                                         local->umask, local->fd, local->params);
-        return 0;
+    dht_create_wind_to_avail_subvol(frame, this, subvol, &local->loc,
+                                    local->flags, local->mode, local->umask,
+                                    local->fd, local->params);
+    return 0;
 err:
-        local->refresh_layout_unlock (frame, this, -1, 1);
+    local->refresh_layout_unlock(frame, this, -1, 1);
 
-        return 0;
+    return 0;
 }
 
 int32_t
-dht_create_unlock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_create_unlock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
 int32_t
-dht_create_finish (call_frame_t *frame, xlator_t *this, int op_ret,
-                   int invoke_cbk)
+dht_create_finish(call_frame_t *frame, xlator_t *this, int op_ret,
+                  int invoke_cbk)
 {
-        dht_local_t  *local      = NULL, *lock_local = NULL;
-        call_frame_t *lock_frame = NULL;
-        int           lock_count = 0;
-
-        local = frame->local;
-        lock_count = dht_lock_count (local->lock[0].layout.parent_layout.locks,
-                                     local->lock[0].layout.parent_layout.lk_count);
-        if (lock_count == 0)
-                goto done;
-
-        lock_frame = copy_frame (frame);
-        if (lock_frame == NULL) {
-                goto done;
-        }
-
-        lock_local = dht_local_init (lock_frame, &local->loc, NULL,
-                                     lock_frame->root->op);
-        if (lock_local == NULL) {
-                goto done;
-        }
-
-        lock_local->lock[0].layout.parent_layout.locks = local->lock[0].layout.parent_layout.locks;
-        lock_local->lock[0].layout.parent_layout.lk_count = local->lock[0].layout.parent_layout.lk_count;
-
-        local->lock[0].layout.parent_layout.locks = NULL;
-	local->lock[0].layout.parent_layout.lk_count = 0;
-
-        dht_unlock_inodelk (lock_frame,
-                            lock_local->lock[0].layout.parent_layout.locks,
-                            lock_local->lock[0].layout.parent_layout.lk_count,
-                            dht_create_unlock_cbk);
-        lock_frame = NULL;
+    dht_local_t *local = NULL, *lock_local = NULL;
+    call_frame_t *lock_frame = NULL;
+    int lock_count = 0;
+
+    local = frame->local;
+    lock_count = dht_lock_count(local->lock[0].layout.parent_layout.locks,
+                                local->lock[0].layout.parent_layout.lk_count);
+    if (lock_count == 0)
+        goto done;
+
+    lock_frame = copy_frame(frame);
+    if (lock_frame == NULL) {
+        goto done;
+    }
+
+    lock_local = dht_local_init(lock_frame, &local->loc, NULL,
+                                lock_frame->root->op);
+    if (lock_local == NULL) {
+        goto done;
+    }
+
+    lock_local->lock[0]
+        .layout.parent_layout.locks = local->lock[0].layout.parent_layout.locks;
+    lock_local->lock[0].layout.parent_layout.lk_count =
+        local->lock[0].layout.parent_layout.lk_count;
+
+    local->lock[0].layout.parent_layout.locks = NULL;
+    local->lock[0].layout.parent_layout.lk_count = 0;
+
+    dht_unlock_inodelk(lock_frame,
+                       lock_local->lock[0].layout.parent_layout.locks,
+                       lock_local->lock[0].layout.parent_layout.lk_count,
+                       dht_create_unlock_cbk);
+    lock_frame = NULL;
 
 done:
-        if (lock_frame != NULL) {
-                DHT_STACK_DESTROY (lock_frame);
-        }
-
-        if (op_ret == 0)
-                return 0;
+    if (lock_frame != NULL) {
+        DHT_STACK_DESTROY(lock_frame);
+    }
 
-        DHT_STACK_UNWIND (create, frame, op_ret, local->op_errno, NULL, NULL,
-                          NULL, NULL, NULL, NULL);
+    if (op_ret == 0)
         return 0;
+
+    DHT_STACK_UNWIND(create, frame, op_ret, local->op_errno, NULL, NULL, NULL,
+                     NULL, NULL, NULL);
+    return 0;
 }
 
 int32_t
-dht_create_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_create_lock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t     *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (!local) {
-                goto err;
-        }
+    if (!local) {
+        goto err;
+    }
 
-        if (op_ret < 0) {
-                gf_msg ("DHT", GF_LOG_ERROR, 0, DHT_MSG_INODE_LK_ERROR,
-                        "Create lock failed for file: %s", local->loc2.name);
+    if (op_ret < 0) {
+        gf_msg("DHT", GF_LOG_ERROR, 0, DHT_MSG_INODE_LK_ERROR,
+               "Create lock failed for file: %s", local->loc2.name);
 
-                local->op_errno = op_errno;
+        local->op_errno = op_errno;
 
-                goto err;
-        }
+        goto err;
+    }
 
-        local->refresh_layout_unlock = dht_create_finish;
+    local->refresh_layout_unlock = dht_create_finish;
 
-        local->refresh_layout_done = dht_create_do;
+    local->refresh_layout_done = dht_create_do;
 
-        dht_refresh_layout (frame);
+    dht_refresh_layout(frame);
 
-        return 0;
+    return 0;
 err:
-        dht_create_finish (frame, this, -1, 0);
-        return 0;
+    dht_create_finish(frame, this, -1, 0);
+    return 0;
 }
 
 int32_t
-dht_create_lock (call_frame_t *frame, xlator_t *subvol)
+dht_create_lock(call_frame_t *frame, xlator_t *subvol)
 {
-        dht_local_t     *local          = NULL;
-        int              count  = 1,    ret = -1;
-        dht_lock_t     **lk_array       = NULL;
+    dht_local_t *local = NULL;
+    int count = 1, ret = -1;
+    dht_lock_t **lk_array = NULL;
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO (frame->this->name, frame->local, err);
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO(frame->this->name, frame->local, err);
 
-        local = frame->local;
+    local = frame->local;
 
-        lk_array = GF_CALLOC (count, sizeof (*lk_array), gf_common_mt_pointer);
+    lk_array = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_pointer);
 
-        if (lk_array == NULL)
-                goto err;
+    if (lk_array == NULL)
+        goto err;
 
-        lk_array[0] = dht_lock_new (frame->this, subvol, &local->loc, F_RDLCK,
-                                    DHT_LAYOUT_HEAL_DOMAIN, NULL,
-                                    IGNORE_ENOENT_ESTALE);
+    lk_array[0] = dht_lock_new(frame->this, subvol, &local->loc, F_RDLCK,
+                               DHT_LAYOUT_HEAL_DOMAIN, NULL,
+                               IGNORE_ENOENT_ESTALE);
 
-        if (lk_array[0] == NULL)
-                goto err;
+    if (lk_array[0] == NULL)
+        goto err;
 
-        local->lock[0].layout.parent_layout.locks = lk_array;
-        local->lock[0].layout.parent_layout.lk_count = count;
+    local->lock[0].layout.parent_layout.locks = lk_array;
+    local->lock[0].layout.parent_layout.lk_count = count;
 
-        ret = dht_blocking_inodelk (frame, lk_array, count,
-                                    dht_create_lock_cbk);
+    ret = dht_blocking_inodelk(frame, lk_array, count, dht_create_lock_cbk);
 
-        if (ret < 0) {
-                local->lock[0].layout.parent_layout.locks = NULL;
-                local->lock[0].layout.parent_layout.lk_count = 0;
-                goto err;
-        }
+    if (ret < 0) {
+        local->lock[0].layout.parent_layout.locks = NULL;
+        local->lock[0].layout.parent_layout.lk_count = 0;
+        goto err;
+    }
 
-        return 0;
+    return 0;
 err:
-        if (lk_array != NULL) {
-                dht_lock_array_free (lk_array, count);
-                GF_FREE (lk_array);
-        }
+    if (lk_array != NULL) {
+        dht_lock_array_free(lk_array, count);
+        GF_FREE(lk_array);
+    }
 
-        return -1;
+    return -1;
 }
 
 int
-dht_create (call_frame_t *frame, xlator_t *this,
-            loc_t *loc, int32_t flags, mode_t mode,
-            mode_t umask, fd_t *fd, dict_t *params)
+dht_create(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+           mode_t mode, mode_t umask, fd_t *fd, dict_t *params)
 {
-        int             op_errno           = -1;
-        xlator_t       *subvol             = NULL;
-        xlator_t       *hashed_subvol      = NULL;
-        dht_local_t    *local              = NULL;
-        int             i                  = 0;
-        dht_conf_t     *conf               = NULL;
-        int             ret                = 0;
+    int op_errno = -1;
+    xlator_t *subvol = NULL;
+    xlator_t *hashed_subvol = NULL;
+    dht_local_t *local = NULL;
+    int i = 0;
+    dht_conf_t *conf = NULL;
+    int ret = 0;
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
 
-        conf = this->private;
+    conf = this->private;
 
-        dht_get_du_info (frame, this, loc);
+    dht_get_du_info(frame, this, loc);
 
-        local = dht_local_init (frame, loc, fd, GF_FOP_CREATE);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    local = dht_local_init(frame, loc, fd, GF_FOP_CREATE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        if (dht_filter_loc_subvol_key (this, loc, &local->loc,
-                                       &subvol)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_SUBVOL_INFO,
-                        "creating %s on %s (got create on %s)",
-                        local->loc.path, subvol->name, loc->path);
+    if (dht_filter_loc_subvol_key(this, loc, &local->loc, &subvol)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+               "creating %s on %s (got create on %s)", local->loc.path,
+               subvol->name, loc->path);
 
-                /* Since lookup-optimize is enabled by default, we need
-                 * to create the linkto file if required.
-                 * Note this does not check for decommisioned bricks
-                 * and min-free-disk limits as this is a debugging tool
-                 * and not expected to be used in production.
-                 */
-                hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
-
-                if (hashed_subvol && (hashed_subvol != subvol)) {
-                        /* Create the linkto file and then the data file */
-                        local->params = dict_ref (params);
-                        local->flags = flags;
-                        local->mode = mode;
-                        local->umask = umask;
-                        local->cached_subvol = subvol;
-                        local->hashed_subvol = hashed_subvol;
-
-                        dht_linkfile_create (frame,
-                                             dht_create_linkfile_create_cbk,
-                                             this, subvol, hashed_subvol,
-                                             &local->loc);
-                        goto done;
+        /* Since lookup-optimize is enabled by default, we need
+         * to create the linkto file if required.
+         * Note this does not check for decommisioned bricks
+         * and min-free-disk limits as this is a debugging tool
+         * and not expected to be used in production.
+         */
+        hashed_subvol = dht_subvol_get_hashed(this, &local->loc);
+
+        if (hashed_subvol && (hashed_subvol != subvol)) {
+            /* Create the linkto file and then the data file */
+            local->params = dict_ref(params);
+            local->flags = flags;
+            local->mode = mode;
+            local->umask = umask;
+            local->cached_subvol = subvol;
+            local->hashed_subvol = hashed_subvol;
+
+            dht_linkfile_create(frame, dht_create_linkfile_create_cbk, this,
+                                subvol, hashed_subvol, &local->loc);
+            goto done;
+        }
+        /* We either don't have a hashed subvol or the hashed subvol is
+         * the same as the one specified. No need to create the linkto
+         * file as we expect a lookup everywhere if there are problems
+         * with the parent layout
+         */
+        STACK_WIND_COOKIE(frame, dht_create_cbk, subvol, subvol,
+                          subvol->fops->create, &local->loc, flags, mode, umask,
+                          fd, params);
+        goto done;
+    }
+
+    subvol = dht_subvol_get_hashed(this, loc);
+    if (!subvol) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+               "no subvolume in layout for path=%s", loc->path);
+
+        op_errno = EIO;
+        goto err;
+    }
+
+    /* Post remove-brick, the client layout may not be in sync with
+     * disk layout because of lack of lookup. Hence,a create call
+     * may fall on the decommissioned brick.  Hence, if the
+     * hashed_subvol is part of decommissioned bricks  list, do a
+     * lookup on parent dir. If a fix-layout is already done by the
+     * remove-brick process, the parent directory layout will be in
+     * sync with that of the disk. If fix-layout is still ending
+     * on the parent directory, we can let the file get created on
+     * the decommissioned brick which will be eventually migrated to
+     * non-decommissioned brick based on the new layout.
+     */
+
+    if (conf->decommission_subvols_cnt) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->decommissioned_bricks[i] &&
+                conf->decommissioned_bricks[i] == subvol) {
+                gf_msg_debug(this->name, 0,
+                             "hashed subvol:%s is "
+                             "part of decommission brick list for "
+                             "file: %s",
+                             subvol->name, loc->path);
+
+                /* dht_refresh_layout needs directory info in
+                 * local->loc. Hence, storing the parent_loc in
+                 * local->loc and storing the create context in
+                 * local->loc2. We will restore this information
+                 * in dht_creation do */
+
+                ret = loc_copy(&local->loc2, &local->loc);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                           "loc_copy failed %s", loc->path);
+
+                    goto err;
                 }
-                /* We either don't have a hashed subvol or the hashed subvol is
-                 * the same as the one specified. No need to create the linkto
-                 * file as we expect a lookup everywhere if there are problems
-                 * with the parent layout
-                 */
-                STACK_WIND_COOKIE (frame, dht_create_cbk, subvol,
-                                   subvol, subvol->fops->create, &local->loc,
-                                   flags, mode, umask, fd, params);
-                goto done;
-        }
 
-        subvol = dht_subvol_get_hashed (this, loc);
-        if (!subvol) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                        "no subvolume in layout for path=%s",
-                        loc->path);
+                local->params = dict_ref(params);
+                local->flags = flags;
+                local->mode = mode;
+                local->umask = umask;
 
-                op_errno = EIO;
-                goto err;
-        }
+                loc_wipe(&local->loc);
 
-       /* Post remove-brick, the client layout may not be in sync with
-        * disk layout because of lack of lookup. Hence,a create call
-        * may fall on the decommissioned brick.  Hence, if the
-        * hashed_subvol is part of decommissioned bricks  list, do a
-        * lookup on parent dir. If a fix-layout is already done by the
-        * remove-brick process, the parent directory layout will be in
-        * sync with that of the disk. If fix-layout is still ending
-        * on the parent directory, we can let the file get created on
-        * the decommissioned brick which will be eventually migrated to
-        * non-decommissioned brick based on the new layout.
-        */
+                ret = dht_build_parent_loc(this, &local->loc, loc, &op_errno);
 
-        if (conf->decommission_subvols_cnt) {
-            for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->decommissioned_bricks[i] &&
-                        conf->decommissioned_bricks[i] == subvol) {
-
-                        gf_msg_debug (this->name, 0, "hashed subvol:%s is "
-                                      "part of decommission brick list for "
-                                      "file: %s", subvol->name, loc->path);
-
-                        /* dht_refresh_layout needs directory info in
-                         * local->loc. Hence, storing the parent_loc in
-                         * local->loc and storing the create context in
-                         * local->loc2. We will restore this information
-                         * in dht_creation do */
-
-                        ret = loc_copy (&local->loc2, &local->loc);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                        DHT_MSG_NO_MEMORY,
-                                        "loc_copy failed %s", loc->path);
-
-                                goto err;
-                        }
-
-                        local->params = dict_ref (params);
-                        local->flags = flags;
-                        local->mode = mode;
-                        local->umask = umask;
-
-                        loc_wipe (&local->loc);
-
-                        ret = dht_build_parent_loc (this, &local->loc, loc,
-                                                                 &op_errno);
-
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                        DHT_MSG_LOC_FAILED,
-                                        "parent loc build failed");
-                                goto err;
-                        }
-
-                        ret = dht_create_lock (frame, subvol);
-
-                        if (ret < 0) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_INODE_LK_ERROR,
-                                        "locking parent failed");
-                                goto err;
-                        }
-
-                        goto done;
-               }
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_LOC_FAILED,
+                           "parent loc build failed");
+                    goto err;
+                }
+
+                ret = dht_create_lock(frame, subvol);
+
+                if (ret < 0) {
+                    gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INODE_LK_ERROR,
+                           "locking parent failed");
+                    goto err;
+                }
+
+                goto done;
             }
         }
+    }
 
-
-        dht_create_wind_to_avail_subvol (frame, this, subvol, loc, flags, mode,
-                                         umask, fd, params);
+    dht_create_wind_to_avail_subvol(frame, this, subvol, loc, flags, mode,
+                                    umask, fd, params);
 done:
-        return 0;
+    return 0;
 
 err:
 
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (create, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_mkdir_selfheal_cbk (call_frame_t *frame, void *cookie,
-                        xlator_t *this,
-                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_mkdir_selfheal_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t   *local = NULL;
-        dht_layout_t  *layout = NULL;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
 
-        local = frame->local;
-        layout = local->selfheal.layout;
+    local = frame->local;
+    layout = local->selfheal.layout;
 
-        FRAME_SU_UNDO (frame, dht_local_t);
-        dht_set_fixed_dir_stat (&local->preparent);
-        dht_set_fixed_dir_stat (&local->postparent);
+    FRAME_SU_UNDO(frame, dht_local_t);
+    dht_set_fixed_dir_stat(&local->preparent);
+    dht_set_fixed_dir_stat(&local->postparent);
 
-        if (op_ret == 0) {
-                dht_layout_set (this, local->inode, layout);
+    if (op_ret == 0) {
+        dht_layout_set(this, local->inode, layout);
 
-                dht_inode_ctx_time_update (local->inode, this,
-                                           &local->stbuf, 1);
-                if (local->loc.parent) {
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->preparent, 0);
+        dht_inode_ctx_time_update(local->inode, this, &local->stbuf, 1);
+        if (local->loc.parent) {
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->preparent, 0);
 
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->postparent, 1);
-                }
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->postparent, 1);
         }
+    }
 
-        DHT_STACK_UNWIND (mkdir, frame, op_ret, op_errno,
-                          local->inode, &local->stbuf, &local->preparent,
-                          &local->postparent, NULL);
+    DHT_STACK_UNWIND(mkdir, frame, op_ret, op_errno, local->inode,
+                     &local->stbuf, &local->preparent, &local->postparent,
+                     NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_mkdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-               int op_ret, int op_errno, inode_t *inode, struct iatt *stbuf,
-               struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
+dht_mkdir_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+              int op_errno, inode_t *inode, struct iatt *stbuf,
+              struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        int           ret = -1;
-        gf_boolean_t subvol_filled = _gf_false;
-        gf_boolean_t dir_exists = _gf_false;
-        xlator_t     *prev = NULL;
-        dht_layout_t *layout = NULL;
-
-        local = frame->local;
-        prev  = cookie;
-        layout = local->layout;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    int ret = -1;
+    gf_boolean_t subvol_filled = _gf_false;
+    gf_boolean_t dir_exists = _gf_false;
+    xlator_t *prev = NULL;
+    dht_layout_t *layout = NULL;
 
-        subvol_filled = dht_is_subvol_filled (this, prev);
+    local = frame->local;
+    prev = cookie;
+    layout = local->layout;
 
-        LOCK (&frame->lock);
-        {
-                if (subvol_filled && (op_ret != -1)) {
-                        ret = dht_layout_merge (this, layout, prev,
-                                                -1, ENOSPC, NULL);
-                } else {
-                        if (op_ret == -1 && op_errno == EEXIST) {
-                                /* Very likely just a race between mkdir and
-                                   self-heal (from lookup of a concurrent mkdir
-                                   attempt).
-                                   Ignore error for now. layout setting will
-                                   anyways fail if this was a different (old)
-                                   pre-existing different directory.
-                                */
-                                op_ret = 0;
-                                dir_exists = _gf_true;
-                        }
-                        ret = dht_layout_merge (this, layout, prev,
-                                                op_ret, op_errno, NULL);
-                }
-                if (ret)
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_LAYOUT_MERGE_FAILED,
-                                "%s: failed to merge layouts for subvol %s",
-                                local->loc.path, prev->name);
-
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        goto unlock;
-                }
+    subvol_filled = dht_is_subvol_filled(this, prev);
 
-                if (dir_exists)
-                        goto unlock;
+    LOCK(&frame->lock);
+    {
+        if (subvol_filled && (op_ret != -1)) {
+            ret = dht_layout_merge(this, layout, prev, -1, ENOSPC, NULL);
+        } else {
+            if (op_ret == -1 && op_errno == EEXIST) {
+                /* Very likely just a race between mkdir and
+                   self-heal (from lookup of a concurrent mkdir
+                   attempt).
+                   Ignore error for now. layout setting will
+                   anyways fail if this was a different (old)
+                   pre-existing different directory.
+                */
+                op_ret = 0;
+                dir_exists = _gf_true;
+            }
+            ret = dht_layout_merge(this, layout, prev, op_ret, op_errno, NULL);
+        }
+        if (ret)
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_MERGE_FAILED,
+                   "%s: failed to merge layouts for subvol %s", local->loc.path,
+                   prev->name);
 
-                dht_iatt_merge (this, &local->stbuf, stbuf);
-                dht_iatt_merge (this, &local->preparent, preparent);
-                dht_iatt_merge (this, &local->postparent, postparent);
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            goto unlock;
         }
+
+        if (dir_exists)
+            goto unlock;
+
+        dht_iatt_merge(this, &local->stbuf, stbuf);
+        dht_iatt_merge(this, &local->preparent, preparent);
+        dht_iatt_merge(this, &local->postparent, postparent);
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                /*Unlock entrylk and inodelk once mkdir is done on all subvols*/
-                dht_unlock_namespace (frame, &local->lock[0]);
-                FRAME_SU_DO (frame, dht_local_t);
-                dht_selfheal_new_directory (frame, dht_mkdir_selfheal_cbk,
-                                            layout);
-        }
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        /*Unlock entrylk and inodelk once mkdir is done on all subvols*/
+        dht_unlock_namespace(frame, &local->lock[0]);
+        FRAME_SU_DO(frame, dht_local_t);
+        dht_selfheal_new_directory(frame, dht_mkdir_selfheal_cbk, layout);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_mkdir_hashed_cbk (call_frame_t *frame, void *cookie,
-                      xlator_t *this, int op_ret, int op_errno,
-                      inode_t *inode, struct iatt *stbuf,
-                      struct iatt *preparent, struct iatt *postparent,
-                      dict_t *xdata);
+dht_mkdir_hashed_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int op_ret, int op_errno, inode_t *inode,
+                     struct iatt *stbuf, struct iatt *preparent,
+                     struct iatt *postparent, dict_t *xdata);
 
 int
-dht_mkdir_helper (call_frame_t *frame, xlator_t *this,
-                  loc_t *loc, mode_t mode, mode_t umask, dict_t *params)
+dht_mkdir_helper(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
+                 mode_t umask, dict_t *params)
 {
-        dht_local_t  *local                   = NULL;
-        dht_conf_t   *conf                    = NULL;
-        int           op_errno                = -1, ret = -1;
-        xlator_t     *hashed_subvol           = NULL;
-        int32_t      *parent_disk_layout      = NULL;
-        dht_layout_t *parent_layout           = NULL;
-        char          pgfid[GF_UUID_BUF_SIZE] = {0};
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        gf_uuid_unparse (loc->parent->gfid, pgfid);
-
-        conf = this->private;
-        local = frame->local;
-
-        if (local->op_ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): refreshing parent layout "
-                        "failed.", pgfid, loc->name,
-                        loc->path);
-
-                op_errno = local->op_errno;
-                goto err;
-        }
-
-        local->op_ret = -1;
-
-        hashed_subvol = dht_subvol_get_hashed (this, loc);
-        if (hashed_subvol == NULL) {
-                gf_msg_debug (this->name, 0,
-                              "mkdir (%s/%s) (path: %s): hashed subvol not "
-                              "found", pgfid, loc->name, loc->path);
-                op_errno = ENOENT;
-                goto err;
-        }
-
-        local->hashed_subvol = hashed_subvol;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = -1, ret = -1;
+    xlator_t *hashed_subvol = NULL;
+    int32_t *parent_disk_layout = NULL;
+    dht_layout_t *parent_layout = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
 
-        parent_layout = dht_layout_get (this, loc->parent);
-
-        ret = dht_disk_layout_extract_for_subvol (this, parent_layout,
-                                                  hashed_subvol,
-                                                  &parent_disk_layout);
-        if (ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, EIO,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "extracting in-memory layout of parent failed. ",
-                        pgfid, loc->name, loc->path);
-                goto err;
-        }
-
-        if (memcmp (local->parent_disk_layout, parent_disk_layout,
-                    sizeof (local->parent_disk_layout)) == 0) {
-                gf_msg (this->name, GF_LOG_WARNING, EIO,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): loop detected. "
-                        "parent layout didn't change even though "
-                        "previous attempt of mkdir failed because of "
-                        "in-memory layout not matching with that on disk.",
-                        pgfid, loc->name, loc->path);
-                op_errno = EIO;
-                goto err;
-        }
-
-        memcpy ((void *)local->parent_disk_layout, (void *)parent_disk_layout,
-                sizeof (local->parent_disk_layout));
-
-        dht_layout_unref (this, parent_layout);
-        parent_layout = NULL;
-
-        ret = dict_set_str (params, GF_PREOP_PARENT_KEY, conf->xattr_name);
-        if (ret < 0) {
-                local->op_errno = -ret;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "setting %s key in params dictionary failed. ",
-                        pgfid, loc->name, loc->path, GF_PREOP_PARENT_KEY);
-                goto err;
-        }
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        ret = dict_set_bin (params, conf->xattr_name, parent_disk_layout,
-                            4 * 4);
-        if (ret < 0) {
-                local->op_errno = -ret;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "setting parent-layout in params dictionary failed. "
-                        "mkdir (%s/%s) (path: %s)", pgfid, loc->name,
-                        loc->path);
-                goto err;
-        }
+    gf_uuid_unparse(loc->parent->gfid, pgfid);
 
-        parent_disk_layout = NULL;
+    conf = this->private;
+    local = frame->local;
 
-        STACK_WIND_COOKIE (frame, dht_mkdir_hashed_cbk, hashed_subvol,
-                           hashed_subvol, hashed_subvol->fops->mkdir,
-                           loc, mode, umask, params);
+    if (local->op_ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): refreshing parent layout "
+               "failed.",
+               pgfid, loc->name, loc->path);
 
-        return 0;
+        op_errno = local->op_errno;
+        goto err;
+    }
+
+    local->op_ret = -1;
+
+    hashed_subvol = dht_subvol_get_hashed(this, loc);
+    if (hashed_subvol == NULL) {
+        gf_msg_debug(this->name, 0,
+                     "mkdir (%s/%s) (path: %s): hashed subvol not "
+                     "found",
+                     pgfid, loc->name, loc->path);
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    local->hashed_subvol = hashed_subvol;
+
+    parent_layout = dht_layout_get(this, loc->parent);
+
+    ret = dht_disk_layout_extract_for_subvol(this, parent_layout, hashed_subvol,
+                                             &parent_disk_layout);
+    if (ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, EIO, DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "extracting in-memory layout of parent failed. ",
+               pgfid, loc->name, loc->path);
+        goto err;
+    }
+
+    if (memcmp(local->parent_disk_layout, parent_disk_layout,
+               sizeof(local->parent_disk_layout)) == 0) {
+        gf_msg(this->name, GF_LOG_WARNING, EIO, DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): loop detected. "
+               "parent layout didn't change even though "
+               "previous attempt of mkdir failed because of "
+               "in-memory layout not matching with that on disk.",
+               pgfid, loc->name, loc->path);
+        op_errno = EIO;
+        goto err;
+    }
+
+    memcpy((void *)local->parent_disk_layout, (void *)parent_disk_layout,
+           sizeof(local->parent_disk_layout));
+
+    dht_layout_unref(this, parent_layout);
+    parent_layout = NULL;
+
+    ret = dict_set_str(params, GF_PREOP_PARENT_KEY, conf->xattr_name);
+    if (ret < 0) {
+        local->op_errno = -ret;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "setting %s key in params dictionary failed. ",
+               pgfid, loc->name, loc->path, GF_PREOP_PARENT_KEY);
+        goto err;
+    }
+
+    ret = dict_set_bin(params, conf->xattr_name, parent_disk_layout, 4 * 4);
+    if (ret < 0) {
+        local->op_errno = -ret;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "setting parent-layout in params dictionary failed. "
+               "mkdir (%s/%s) (path: %s)",
+               pgfid, loc->name, loc->path);
+        goto err;
+    }
+
+    parent_disk_layout = NULL;
+
+    STACK_WIND_COOKIE(frame, dht_mkdir_hashed_cbk, hashed_subvol, hashed_subvol,
+                      hashed_subvol->fops->mkdir, loc, mode, umask, params);
+
+    return 0;
 
 err:
-        dht_unlock_namespace (frame, &local->lock[0]);
+    dht_unlock_namespace(frame, &local->lock[0]);
 
-        op_errno = local ? local->op_errno : op_errno;
-        DHT_STACK_UNWIND (mkdir, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL, NULL);
+    op_errno = local ? local->op_errno : op_errno;
+    DHT_STACK_UNWIND(mkdir, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        if (parent_disk_layout != NULL)
-                GF_FREE (parent_disk_layout);
+    if (parent_disk_layout != NULL)
+        GF_FREE(parent_disk_layout);
 
-        if (parent_layout != NULL)
-                dht_layout_unref (this, parent_layout);
+    if (parent_layout != NULL)
+        dht_layout_unref(this, parent_layout);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_mkdir_hashed_cbk (call_frame_t *frame, void *cookie,
-                      xlator_t *this, int op_ret, int op_errno,
-                      inode_t *inode, struct iatt *stbuf,
-                      struct iatt *preparent, struct iatt *postparent,
-                      dict_t *xdata)
+dht_mkdir_hashed_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int op_ret, int op_errno, inode_t *inode,
+                     struct iatt *stbuf, struct iatt *preparent,
+                     struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local                   = NULL;
-        int           ret                     = -1;
-        xlator_t     *prev                    = NULL;
-        dht_layout_t *layout                  = NULL;
-        dht_conf_t   *conf                    = NULL;
-        int           i                       = 0;
-        xlator_t     *hashed_subvol           = NULL;
-        char          pgfid[GF_UUID_BUF_SIZE] = {0};
-        gf_boolean_t  parent_layout_changed   = _gf_false;
-        call_stub_t  *stub                    = NULL;
+    dht_local_t *local = NULL;
+    int ret = -1;
+    xlator_t *prev = NULL;
+    dht_layout_t *layout = NULL;
+    dht_conf_t *conf = NULL;
+    int i = 0;
+    xlator_t *hashed_subvol = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    gf_boolean_t parent_layout_changed = _gf_false;
+    call_stub_t *stub = NULL;
 
-        VALIDATE_OR_GOTO (this->private, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        local = frame->local;
-        prev  = cookie;
-        layout = local->layout;
-        conf = this->private;
-        hashed_subvol = local->hashed_subvol;
+    local = frame->local;
+    prev = cookie;
+    layout = local->layout;
+    conf = this->private;
+    hashed_subvol = local->hashed_subvol;
 
-        gf_uuid_unparse (local->loc.parent->gfid, pgfid);
+    gf_uuid_unparse(local->loc.parent->gfid, pgfid);
 
-        if (gf_uuid_is_null (local->loc.gfid) && !op_ret)
-                gf_uuid_copy (local->loc.gfid, stbuf->ia_gfid);
+    if (gf_uuid_is_null(local->loc.gfid) && !op_ret)
+        gf_uuid_copy(local->loc.gfid, stbuf->ia_gfid);
 
-        if (op_ret == -1) {
-                local->op_errno = op_errno;
-
-                parent_layout_changed = (xdata && dict_get (xdata, GF_PREOP_CHECK_FAILED))
-                        ? 1 : 0;
-                if (parent_layout_changed) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_PARENT_LAYOUT_CHANGED,
-                                "mkdir (%s/%s) (path: %s): parent layout "
-                                "changed. Attempting a refresh and then a "
-                                "retry", pgfid, local->loc.name,
-                                local->loc.path);
-
-                        stub = fop_mkdir_stub (frame, dht_mkdir_helper,
-                                               &local->loc, local->mode,
-                                               local->umask, local->params);
-                        if (stub == NULL) {
-                                goto err;
-                        }
-
-                        dht_handle_parent_layout_change (this, stub);
-                        stub = NULL;
-
-                        return 0;
-                }
+    if (op_ret == -1) {
+        local->op_errno = op_errno;
 
+        parent_layout_changed = (xdata &&
+                                 dict_get(xdata, GF_PREOP_CHECK_FAILED))
+                                    ? 1
+                                    : 0;
+        if (parent_layout_changed) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_PARENT_LAYOUT_CHANGED,
+                   "mkdir (%s/%s) (path: %s): parent layout "
+                   "changed. Attempting a refresh and then a "
+                   "retry",
+                   pgfid, local->loc.name, local->loc.path);
+
+            stub = fop_mkdir_stub(frame, dht_mkdir_helper, &local->loc,
+                                  local->mode, local->umask, local->params);
+            if (stub == NULL) {
                 goto err;
-        }
-
-        dict_del (local->params, GF_PREOP_PARENT_KEY);
-        dict_del (local->params, conf->xattr_name);
+            }
 
-        if (dht_is_subvol_filled (this, hashed_subvol))
-                ret = dht_layout_merge (this, layout, prev,
-                                        -1, ENOSPC, NULL);
-        else
-                ret = dht_layout_merge (this, layout, prev,
-                                        op_ret, op_errno, NULL);
+            dht_handle_parent_layout_change(this, stub);
+            stub = NULL;
+
+            return 0;
+        }
+
+        goto err;
+    }
+
+    dict_del(local->params, GF_PREOP_PARENT_KEY);
+    dict_del(local->params, conf->xattr_name);
+
+    if (dht_is_subvol_filled(this, hashed_subvol))
+        ret = dht_layout_merge(this, layout, prev, -1, ENOSPC, NULL);
+    else
+        ret = dht_layout_merge(this, layout, prev, op_ret, op_errno, NULL);
+
+    /* TODO: we may have to return from the function
+       if layout merge fails. For now, lets just log an error */
+    if (ret)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_MERGE_FAILED,
+               "%s: failed to merge layouts for subvol %s", local->loc.path,
+               prev->name);
+
+    local->op_ret = 0;
+
+    dht_iatt_merge(this, &local->stbuf, stbuf);
+    dht_iatt_merge(this, &local->preparent, preparent);
+    dht_iatt_merge(this, &local->postparent, postparent);
+
+    local->call_cnt = conf->subvolume_cnt - 1;
+    /* Delete internal mds xattr from params dict to avoid store
+      internal mds xattr on other subvols
+    */
+    dict_del(local->params, conf->mds_xattr_key);
+
+    if (gf_uuid_is_null(local->loc.gfid))
+        gf_uuid_copy(local->loc.gfid, stbuf->ia_gfid);
+
+    /* Set hashed subvol as a mds subvol on inode ctx */
+    /*if (!local->inode)
+            local->inode  = inode_ref (inode);
+    */
+    ret = dht_inode_ctx_mdsvol_set(local->inode, this, hashed_subvol);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SET_INODE_CTX_FAILED,
+               "Failed to set hashed subvol for %s on inode vol is %s",
+               local->loc.path, hashed_subvol->name);
+    }
+
+    if (local->call_cnt == 0) {
+        /*Unlock namespace lock once mkdir is done on all subvols*/
+        dht_unlock_namespace(frame, &local->lock[0]);
+        FRAME_SU_DO(frame, dht_local_t);
+        dht_selfheal_directory(frame, dht_mkdir_selfheal_cbk, &local->loc,
+                               layout);
+        return 0;
+    }
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->subvolumes[i] == hashed_subvol)
+            continue;
+        STACK_WIND_COOKIE(frame, dht_mkdir_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i], conf->subvolumes[i]->fops->mkdir,
+                          &local->loc, local->mode, local->umask,
+                          local->params);
+    }
+
+    return 0;
+err:
+    if (local->op_ret != 0) {
+        dht_unlock_namespace(frame, &local->lock[0]);
+    }
 
-        /* TODO: we may have to return from the function
-           if layout merge fails. For now, lets just log an error */
-        if (ret)
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_LAYOUT_MERGE_FAILED,
-                        "%s: failed to merge layouts for subvol %s",
-                        local->loc.path, prev->name);
+    DHT_STACK_UNWIND(mkdir, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        local->op_ret = 0;
+    return 0;
+}
 
-        dht_iatt_merge (this, &local->stbuf, stbuf);
-        dht_iatt_merge (this, &local->preparent, preparent);
-        dht_iatt_merge (this, &local->postparent, postparent);
+int
+dht_mkdir_guard_parent_layout_cbk(call_frame_t *frame, xlator_t *this,
+                                  loc_t *loc, mode_t mode, mode_t umask,
+                                  dict_t *params)
+{
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = 0;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    int ret = -1;
+    int32_t zero[1] = {0};
 
-        local->call_cnt = conf->subvolume_cnt - 1;
-        /* Delete internal mds xattr from params dict to avoid store
-          internal mds xattr on other subvols
-        */
-        dict_del (local->params, conf->mds_xattr_key);
+    local = frame->local;
+    conf = this->private;
 
-        if (gf_uuid_is_null (local->loc.gfid))
-                gf_uuid_copy (local->loc.gfid, stbuf->ia_gfid);
+    gf_uuid_unparse(loc->parent->gfid, pgfid);
 
-        /* Set hashed subvol as a mds subvol on inode ctx */
-        /*if (!local->inode)
-                local->inode  = inode_ref (inode);
-        */
-        ret = dht_inode_ctx_mdsvol_set (local->inode, this, hashed_subvol);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_SET_INODE_CTX_FAILED,
-                        "Failed to set hashed subvol for %s on inode vol is %s",
-                        local->loc.path, hashed_subvol->name);
-        }
+    if (local->op_ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "Acquiring lock on parent to guard against "
+               "layout-change failed.",
+               pgfid, loc->name, loc->path);
+        goto err;
+    }
 
-        if (local->call_cnt == 0) {
-                /*Unlock namespace lock once mkdir is done on all subvols*/
-                dht_unlock_namespace (frame, &local->lock[0]);
-                FRAME_SU_DO (frame, dht_local_t);
-                dht_selfheal_directory (frame, dht_mkdir_selfheal_cbk,
-                                        &local->loc, layout);
-                return 0;
-        }
+    local->op_ret = -1;
+    /* Add internal MDS xattr on disk for hashed subvol
+     */
+    ret = dht_dict_set_array(params, conf->mds_xattr_key, zero, 1);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value:key = %s for "
+               "path %s",
+               conf->mds_xattr_key, loc->path);
+    }
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->subvolumes[i] == hashed_subvol)
-                        continue;
-                STACK_WIND_COOKIE (frame, dht_mkdir_cbk, conf->subvolumes[i],
-                                   conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->mkdir,
-                                   &local->loc, local->mode, local->umask,
-                                   local->params);
-        }
+    STACK_WIND_COOKIE(frame, dht_mkdir_hashed_cbk, local->hashed_subvol,
+                      local->hashed_subvol, local->hashed_subvol->fops->mkdir,
+                      loc, mode, umask, params);
 
-        return 0;
+    return 0;
 err:
-        if (local->op_ret != 0) {
-                dht_unlock_namespace (frame, &local->lock[0]);
-        }
+    DHT_STACK_UNWIND(mkdir, frame, -1, local->op_errno, NULL, NULL, NULL, NULL,
+                     NULL);
+
+    return 0;
+}
+
+int
+dht_mkdir(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
+          mode_t umask, dict_t *params)
+{
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = EINVAL, ret = -1;
+    xlator_t *hashed_subvol = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    call_stub_t *stub = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    gf_uuid_unparse(loc->parent->gfid, pgfid);
+
+    conf = this->private;
+
+    if (!params || !dict_get(params, "gfid-req")) {
+        op_errno = EPERM;
+        gf_msg_callingfn(this->name, GF_LOG_WARNING, op_errno,
+                         DHT_MSG_GFID_NULL,
+                         "mkdir: %s is received "
+                         "without gfid-req %p",
+                         loc->path, params);
+        goto err;
+    }
+
+    dht_get_du_info(frame, this, loc);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_MKDIR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    hashed_subvol = dht_subvol_get_hashed(this, loc);
+    if (hashed_subvol == NULL) {
+        gf_msg_debug(this->name, 0, "hashed subvol not found for %s",
+                     loc->path);
+        local->op_errno = EIO;
+        goto err;
+    }
+
+    local->hashed_subvol = hashed_subvol;
+    local->mode = mode;
+    local->umask = umask;
+    if (params)
+        local->params = dict_ref(params);
+
+    local->inode = inode_ref(loc->inode);
+
+    local->layout = dht_layout_new(this, conf->subvolume_cnt);
+    if (!local->layout) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    /* set the newly created directory hash to the commit hash
+     * if the configuration option is set. If configuration option
+     * is not set, the older clients may still be connecting to the
+     * volume and hence we need to preserve the 1 in disk[0] part of the
+     * layout xattr */
+    if (conf->lookup_optimize)
+        local->layout->commit_hash = conf->vol_commit_hash;
+    else
+        local->layout->commit_hash = DHT_LAYOUT_HASH_INVALID;
+
+    stub = fop_mkdir_stub(frame, dht_mkdir_guard_parent_layout_cbk, loc, mode,
+                          umask, params);
+    if (stub == NULL) {
+        gf_msg(this->name, GF_LOG_WARNING, ENOMEM,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "creating stub failed.",
+               pgfid, loc->name, loc->path);
+        local->op_errno = ENOMEM;
+        goto err;
+    }
+
+    ret = dht_guard_parent_layout_and_namespace(this, stub);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s) cannot wind lock request to "
+               "guard parent layout",
+               pgfid, loc->name, loc->path);
+        goto err;
+    }
+
+    return 0;
 
-        DHT_STACK_UNWIND (mkdir, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL, NULL);
+err:
+    op_errno = local ? local->op_errno : op_errno;
+    DHT_STACK_UNWIND(mkdir, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_mkdir_guard_parent_layout_cbk (call_frame_t *frame, xlator_t *this,
-                                   loc_t *loc, mode_t mode, mode_t umask,
-                                   dict_t *params)
+dht_rmdir_selfheal_cbk(call_frame_t *heal_frame, void *cookie, xlator_t *this,
+                       int op_ret, int op_errno, dict_t *xdata)
 {
-        dht_local_t *local                    = NULL;
-        dht_conf_t  *conf                     = 0;
-        char          pgfid[GF_UUID_BUF_SIZE] = {0};
-        int          ret                      = -1;
-        int32_t      zero[1]                  = {0};
-
-        local = frame->local;
-        conf  = this->private;
+    dht_local_t *local = NULL;
+    dht_local_t *heal_local = NULL;
+    call_frame_t *main_frame = NULL;
 
-        gf_uuid_unparse (loc->parent->gfid, pgfid);
-
-        if (local->op_ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "Acquiring lock on parent to guard against "
-                        "layout-change failed.", pgfid, loc->name, loc->path);
-                goto err;
-        }
-
-        local->op_ret = -1;
-        /* Add internal MDS xattr on disk for hashed subvol
-        */
-        ret = dht_dict_set_array (params, conf->mds_xattr_key, zero, 1);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value:key = %s for "
-                        "path %s", conf->mds_xattr_key, loc->path);
-        }
+    heal_local = heal_frame->local;
+    main_frame = heal_local->main_frame;
+    local = main_frame->local;
 
-        STACK_WIND_COOKIE (frame, dht_mkdir_hashed_cbk, local->hashed_subvol,
-                           local->hashed_subvol,
-                           local->hashed_subvol->fops->mkdir,
-                           loc, mode, umask, params);
+    DHT_STACK_DESTROY(heal_frame);
+    dht_set_fixed_dir_stat(&local->preparent);
+    dht_set_fixed_dir_stat(&local->postparent);
 
-        return 0;
-err:
-        DHT_STACK_UNWIND (mkdir, frame, -1, local->op_errno, NULL, NULL, NULL,
-                          NULL, NULL);
+    DHT_STACK_UNWIND(rmdir, main_frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_mkdir (call_frame_t *frame, xlator_t *this,
-           loc_t *loc, mode_t mode, mode_t umask, dict_t *params)
+dht_rmdir_hashed_subvol_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                            int op_ret, int op_errno, struct iatt *preparent,
+                            struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local                   = NULL;
-        dht_conf_t   *conf                    = NULL;
-        int           op_errno                = EINVAL, ret = -1;
-        xlator_t     *hashed_subvol           = NULL;
-        char          pgfid[GF_UUID_BUF_SIZE] = {0};
-        call_stub_t  *stub                    = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        gf_uuid_unparse (loc->parent->gfid, pgfid);
+    dht_local_t *local = NULL;
+    dht_local_t *heal_local = NULL;
+    call_frame_t *heal_frame = NULL;
+    dht_conf_t *conf = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        conf = this->private;
-
-        if (!params || !dict_get (params, "gfid-req")) {
-                op_errno = EPERM;
-                gf_msg_callingfn (this->name, GF_LOG_WARNING, op_errno,
-                                  DHT_MSG_GFID_NULL, "mkdir: %s is received "
-                                  "without gfid-req %p", loc->path, params);
-                goto err;
-        }
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
 
-        dht_get_du_info (frame, this, loc);
+    gf_uuid_unparse(local->loc.gfid, gfid);
 
-        local = dht_local_init (frame, loc, NULL, GF_FOP_MKDIR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            local->op_ret = -1;
+            if (conf->subvolume_cnt != 1) {
+                if (op_errno != ENOENT && op_errno != EACCES &&
+                    op_errno != ESTALE) {
+                    local->need_selfheal = 1;
+                }
+            }
 
-        hashed_subvol = dht_subvol_get_hashed (this, loc);
-        if (hashed_subvol == NULL) {
-                gf_msg_debug (this->name, 0,
-                              "hashed subvol not found for %s",
-                              loc->path);
-                local->op_errno = EIO;
-                goto err;
+            gf_msg_debug(this->name, op_errno,
+                         "rmdir on %s for %s failed "
+                         "(gfid = %s)",
+                         prev->name, local->loc.path, gfid);
+            goto unlock;
         }
 
+        dht_iatt_merge(this, &local->preparent, preparent);
+        dht_iatt_merge(this, &local->postparent, postparent);
+    }
+unlock:
+    UNLOCK(&frame->lock);
 
-        local->hashed_subvol = hashed_subvol;
-        local->mode = mode;
-        local->umask = umask;
-        if (params)
-                local->params = dict_ref (params);
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        if (local->need_selfheal) {
+            dht_rmdir_unlock(frame, this);
+            local->layout = dht_layout_get(this, local->loc.inode);
 
-        local->inode  = inode_ref (loc->inode);
+            /* TODO: neater interface needed below */
+            local->stbuf.ia_type = local->loc.inode->ia_type;
 
-        local->layout = dht_layout_new (this, conf->subvolume_cnt);
-        if (!local->layout) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+            gf_uuid_copy(local->gfid, local->loc.inode->gfid);
 
-        /* set the newly created directory hash to the commit hash
-         * if the configuration option is set. If configuration option
-         * is not set, the older clients may still be connecting to the
-         * volume and hence we need to preserve the 1 in disk[0] part of the
-         * layout xattr */
-        if (conf->lookup_optimize)
-                local->layout->commit_hash = conf->vol_commit_hash;
-        else
-                local->layout->commit_hash = DHT_LAYOUT_HASH_INVALID;
+            /* Use a different frame or else the rmdir op_ret is
+             * overwritten by that of the selfheal */
 
+            heal_frame = copy_frame(frame);
 
-        stub = fop_mkdir_stub (frame, dht_mkdir_guard_parent_layout_cbk, loc,
-                               mode, umask, params);
-        if (stub == NULL) {
-                gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "creating stub failed.", pgfid, loc->name, loc->path);
-                local->op_errno = ENOMEM;
+            if (heal_frame == NULL) {
                 goto err;
-        }
+            }
 
-        ret = dht_guard_parent_layout_and_namespace (this, stub);
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s) cannot wind lock request to "
-                        "guard parent layout", pgfid, loc->name, loc->path);
+            heal_local = dht_local_init(heal_frame, &local->loc, NULL, 0);
+            if (!heal_local) {
+                DHT_STACK_DESTROY(heal_frame);
                 goto err;
-        }
-
-        return 0;
-
-err:
-        op_errno = local ? local->op_errno : op_errno;
-        DHT_STACK_UNWIND (mkdir, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL, NULL);
+            }
 
-        return 0;
-}
+            heal_local->inode = inode_ref(local->loc.inode);
+            heal_local->main_frame = frame;
+            gf_uuid_copy(heal_local->gfid, local->loc.inode->gfid);
 
+            dht_selfheal_restore(heal_frame, dht_rmdir_selfheal_cbk,
+                                 &heal_local->loc, heal_local->layout);
+            return 0;
+        } else {
+            if (local->loc.parent) {
+                dht_inode_ctx_time_update(local->loc.parent, this,
+                                          &local->preparent, 0);
 
-int
-dht_rmdir_selfheal_cbk (call_frame_t *heal_frame, void *cookie, xlator_t *this,
-                        int op_ret, int op_errno, dict_t *xdata)
-{
-        dht_local_t  *local = NULL;
-        dht_local_t  *heal_local = NULL;
-        call_frame_t *main_frame = NULL;
+                dht_inode_ctx_time_update(local->loc.parent, this,
+                                          &local->postparent, 1);
+            }
 
-        heal_local = heal_frame->local;
-        main_frame = heal_local->main_frame;
-        local = main_frame->local;
+            dht_set_fixed_dir_stat(&local->preparent);
+            dht_set_fixed_dir_stat(&local->postparent);
 
-        DHT_STACK_DESTROY (heal_frame);
-        dht_set_fixed_dir_stat (&local->preparent);
-        dht_set_fixed_dir_stat (&local->postparent);
+            dht_rmdir_unlock(frame, this);
+            DHT_STACK_UNWIND(rmdir, frame, local->op_ret, local->op_errno,
+                             &local->preparent, &local->postparent, NULL);
+        }
+    }
 
-        DHT_STACK_UNWIND (rmdir, main_frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, NULL);
+    return 0;
 
-        return 0;
+err:
+    DHT_STACK_UNWIND(rmdir, frame, local->op_ret, local->op_errno, NULL, NULL,
+                     NULL);
+    return 0;
 }
 
-
 int
-dht_rmdir_hashed_subvol_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                             int op_ret, int op_errno, struct iatt *preparent,
-                             struct iatt *postparent, dict_t *xdata)
+dht_rmdir_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+              int op_errno, struct iatt *preparent, struct iatt *postparent,
+              dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        dht_local_t  *heal_local = NULL;
-        call_frame_t *heal_frame = NULL;
-        dht_conf_t   *conf = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
-        char gfid[GF_UUID_BUF_SIZE] ={0};
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    int done = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_local_t *heal_local = NULL;
+    call_frame_t *heal_frame = NULL;
+    int ret = -1;
 
-        local = frame->local;
-        prev  = cookie;
-        conf = this->private;
+    local = frame->local;
+    prev = cookie;
 
-        gf_uuid_unparse(local->loc.gfid, gfid);
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            if ((op_errno != ENOENT) && (op_errno != ESTALE)) {
+                local->op_errno = op_errno;
+                local->op_ret = -1;
 
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        local->op_ret   = -1;
-                        if (conf->subvolume_cnt != 1) {
-                                if (op_errno != ENOENT && op_errno != EACCES
-                                    && op_errno != ESTALE) {
-                                        local->need_selfheal = 1;
-                                }
-                        }
-
-                        gf_msg_debug (this->name, op_errno,
-                                      "rmdir on %s for %s failed "
-                                      "(gfid = %s)",
-                                      prev->name, local->loc.path,
-                                      gfid);
-                        goto unlock;
-                }
+                if (op_errno != EACCES)
+                    local->need_selfheal = 1;
+            }
 
-                dht_iatt_merge (this, &local->preparent, preparent);
-                dht_iatt_merge (this, &local->postparent, postparent);
+            gf_uuid_unparse(local->loc.gfid, gfid);
 
+            gf_msg_debug(this->name, op_errno,
+                         "rmdir on %s for %s failed."
+                         "(gfid = %s)",
+                         prev->name, local->loc.path, gfid);
+            goto unlock;
         }
+
+        /* Track if rmdir succeeded on at least one subvol*/
+        local->fop_succeeded = 1;
+        dht_iatt_merge(this, &local->preparent, preparent);
+        dht_iatt_merge(this, &local->postparent, postparent);
+    }
 unlock:
-        UNLOCK (&frame->lock);
-
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-               if (local->need_selfheal) {
-                        dht_rmdir_unlock (frame, this);
-                        local->layout =
-                                dht_layout_get (this, local->loc.inode);
-
-                        /* TODO: neater interface needed below */
-                        local->stbuf.ia_type = local->loc.inode->ia_type;
-
-                        gf_uuid_copy (local->gfid, local->loc.inode->gfid);
-
-                        /* Use a different frame or else the rmdir op_ret is
-                         * overwritten by that of the selfheal */
-
-                        heal_frame = copy_frame (frame);
-
-                        if (heal_frame == NULL) {
-                                goto err;
-                        }
-
-                        heal_local = dht_local_init (heal_frame,
-                                                     &local->loc,
-                                                     NULL, 0);
-                        if (!heal_local) {
-                                DHT_STACK_DESTROY (heal_frame);
-                                goto err;
-                        }
-
-                        heal_local->inode = inode_ref (local->loc.inode);
-                        heal_local->main_frame = frame;
-                        gf_uuid_copy (heal_local->gfid, local->loc.inode->gfid);
-
-                        dht_selfheal_restore (heal_frame,
-                                              dht_rmdir_selfheal_cbk,
-                                              &heal_local->loc,
-                                              heal_local->layout);
-                        return 0;
-               } else {
-
-                        if (local->loc.parent) {
-                                dht_inode_ctx_time_update (local->loc.parent,
-                                                           this,
-                                                           &local->preparent,
-                                                           0);
-
-                                dht_inode_ctx_time_update (local->loc.parent,
-                                                           this,
-                                                           &local->postparent,
-                                                           1);
-                        }
-
-                        dht_set_fixed_dir_stat (&local->preparent);
-                        dht_set_fixed_dir_stat (&local->postparent);
-
-                        dht_rmdir_unlock (frame, this);
-                        DHT_STACK_UNWIND (rmdir, frame, local->op_ret,
-                                          local->op_errno, &local->preparent,
-                                          &local->postparent, NULL);
-               }
-        }
+    UNLOCK(&frame->lock);
 
-        return 0;
+    this_call_cnt = dht_frame_return(frame);
 
-err:
-        DHT_STACK_UNWIND (rmdir, frame, local->op_ret,
-                          local->op_errno, NULL, NULL, NULL);
-        return 0;
+    /* if local->hashed_subvol, we are yet to wind to hashed_subvol. */
+    if (local->hashed_subvol && (this_call_cnt == 1)) {
+        done = 1;
+    } else if (!local->hashed_subvol && !this_call_cnt) {
+        done = 1;
+    }
 
-}
+    if (done) {
+        if (local->need_selfheal && local->fop_succeeded) {
+            dht_rmdir_unlock(frame, this);
+            local->layout = dht_layout_get(this, local->loc.inode);
 
+            /* TODO: neater interface needed below */
+            local->stbuf.ia_type = local->loc.inode->ia_type;
 
-int
-dht_rmdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-               int op_ret, int op_errno, struct iatt *preparent,
-               struct iatt *postparent, dict_t *xdata)
-{
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
-        int           done = 0;
-        char gfid[GF_UUID_BUF_SIZE] ={0};
-        dht_local_t  *heal_local = NULL;
-        call_frame_t *heal_frame = NULL;
-        int           ret        = -1;
+            gf_uuid_copy(local->gfid, local->loc.inode->gfid);
+            heal_frame = copy_frame(frame);
+            if (heal_frame == NULL) {
+                goto err;
+            }
 
-        local = frame->local;
-        prev  = cookie;
+            heal_local = dht_local_init(heal_frame, &local->loc, NULL, 0);
+            if (!heal_local) {
+                DHT_STACK_DESTROY(heal_frame);
+                goto err;
+            }
 
+            heal_local->inode = inode_ref(local->loc.inode);
+            heal_local->main_frame = frame;
+            gf_uuid_copy(heal_local->gfid, local->loc.inode->gfid);
+            ret = dht_selfheal_restore(heal_frame, dht_rmdir_selfheal_cbk,
+                                       &heal_local->loc, heal_local->layout);
+            if (ret) {
+                DHT_STACK_DESTROY(heal_frame);
+                goto err;
+            }
 
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        if ((op_errno != ENOENT) && (op_errno != ESTALE)) {
-                                local->op_errno = op_errno;
-                                local->op_ret = -1;
+        } else if (this_call_cnt) {
+            /* If non-hashed subvol's have responded, proceed */
+            if (local->op_ret == 0) {
+                /* Delete the dir from the hashed subvol if:
+                 * The fop succeeded on at least one subvol
+                 *  and did not fail on any
+                 *  or
+                 *  The fop failed with ENOENT/ESTALE on
+                 *  all subvols */
+
+                STACK_WIND_COOKIE(frame, dht_rmdir_hashed_subvol_cbk,
+                                  local->hashed_subvol, local->hashed_subvol,
+                                  local->hashed_subvol->fops->rmdir,
+                                  &local->loc, local->flags, NULL);
+            } else {
+                /* hashed-subvol was non-NULL and rmdir failed on
+                 * all non hashed-subvols. Unwind rmdir with
+                 * local->op_ret and local->op_errno. */
+                dht_rmdir_unlock(frame, this);
+                DHT_STACK_UNWIND(rmdir, frame, local->op_ret, local->op_errno,
+                                 &local->preparent, &local->postparent, NULL);
 
-                                if (op_errno != EACCES)
-                                        local->need_selfheal = 1;
-                        }
+                return 0;
+            }
+        } else if (!this_call_cnt) {
+            /* All subvol's have responded, proceed */
 
-                        gf_uuid_unparse(local->loc.gfid, gfid);
+            if (local->loc.parent) {
+                dht_inode_ctx_time_update(local->loc.parent, this,
+                                          &local->preparent, 0);
 
-                        gf_msg_debug (this->name, op_errno,
-                                      "rmdir on %s for %s failed."
-                                      "(gfid = %s)",
-                                      prev->name, local->loc.path,
-                                      gfid);
-                        goto unlock;
-                }
+                dht_inode_ctx_time_update(local->loc.parent, this,
+                                          &local->postparent, 1);
+            }
 
-                /* Track if rmdir succeeded on at least one subvol*/
-                local->fop_succeeded = 1;
-                dht_iatt_merge (this, &local->preparent, preparent);
-                dht_iatt_merge (this, &local->postparent, postparent);
-        }
-unlock:
-        UNLOCK (&frame->lock);
-
-
-        this_call_cnt = dht_frame_return (frame);
-
-        /* if local->hashed_subvol, we are yet to wind to hashed_subvol. */
-        if (local->hashed_subvol && (this_call_cnt == 1)) {
-                done = 1;
-        } else if (!local->hashed_subvol && !this_call_cnt) {
-                done = 1;
-        }
-
-
-        if (done) {
-                if (local->need_selfheal && local->fop_succeeded) {
-                        dht_rmdir_unlock (frame, this);
-                        local->layout =
-                                dht_layout_get (this, local->loc.inode);
-
-                        /* TODO: neater interface needed below */
-                        local->stbuf.ia_type = local->loc.inode->ia_type;
-
-                        gf_uuid_copy (local->gfid, local->loc.inode->gfid);
-                        heal_frame = copy_frame (frame);
-                        if (heal_frame == NULL) {
-                                goto err;
-                        }
-
-                        heal_local = dht_local_init (heal_frame, &local->loc,
-                                                     NULL, 0);
-                        if (!heal_local) {
-                                DHT_STACK_DESTROY (heal_frame);
-                                goto err;
-                        }
-
-                        heal_local->inode = inode_ref (local->loc.inode);
-                        heal_local->main_frame = frame;
-                        gf_uuid_copy (heal_local->gfid, local->loc.inode->gfid);
-                        ret = dht_selfheal_restore (heal_frame,
-                                                    dht_rmdir_selfheal_cbk,
-                                                    &heal_local->loc,
-                                                    heal_local->layout);
-                        if (ret) {
-                                DHT_STACK_DESTROY (heal_frame);
-                                goto err;
-                        }
-
-                } else if (this_call_cnt) {
-                        /* If non-hashed subvol's have responded, proceed */
-                        if (local->op_ret == 0) {
-                                /* Delete the dir from the hashed subvol if:
-                                 * The fop succeeded on at least one subvol
-                                 *  and did not fail on any
-                                 *  or
-                                 *  The fop failed with ENOENT/ESTALE on
-                                 *  all subvols */
-
-                                STACK_WIND_COOKIE (frame, dht_rmdir_hashed_subvol_cbk,
-                                                   local->hashed_subvol,
-                                                   local->hashed_subvol,
-                                                   local->hashed_subvol->fops->rmdir,
-                                                   &local->loc, local->flags, NULL);
-                        } else {
-                         /* hashed-subvol was non-NULL and rmdir failed on
-                          * all non hashed-subvols. Unwind rmdir with
-                          * local->op_ret and local->op_errno. */
-                                dht_rmdir_unlock (frame, this);
-                                DHT_STACK_UNWIND (rmdir, frame, local->op_ret,
-                                          local->op_errno, &local->preparent,
-                                          &local->postparent, NULL);
-
-                                return 0;
-
-                        }
-                } else if (!this_call_cnt) {
-                        /* All subvol's have responded, proceed */
-
-                        if (local->loc.parent) {
-
-                                dht_inode_ctx_time_update (local->loc.parent,
-                                                           this,
-                                                           &local->preparent,
-                                                           0);
-
-                                dht_inode_ctx_time_update (local->loc.parent,
-                                                           this,
-                                                           &local->postparent,
-                                                           1);
-
-                        }
-
-                        dht_set_fixed_dir_stat (&local->preparent);
-                        dht_set_fixed_dir_stat (&local->postparent);
-
-                        dht_rmdir_unlock (frame, this);
-                        DHT_STACK_UNWIND (rmdir, frame, local->op_ret,
-                                          local->op_errno, &local->preparent,
-                                          &local->postparent, NULL);
-                }
+            dht_set_fixed_dir_stat(&local->preparent);
+            dht_set_fixed_dir_stat(&local->postparent);
+
+            dht_rmdir_unlock(frame, this);
+            DHT_STACK_UNWIND(rmdir, frame, local->op_ret, local->op_errno,
+                             &local->preparent, &local->postparent, NULL);
         }
+    }
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (rmdir, frame, -1, local->op_errno, NULL, NULL, NULL);
-        return 0;
-
+    DHT_STACK_UNWIND(rmdir, frame, -1, local->op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
-
 int
-dht_rmdir_unlock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                      int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_rmdir_unlock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
-
 int
-dht_rmdir_unlock (call_frame_t *frame, xlator_t *this)
+dht_rmdir_unlock(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t  *local      = NULL, *lock_local = NULL;
-        call_frame_t *lock_frame = NULL;
-        int           lock_count = 0;
+    dht_local_t *local = NULL, *lock_local = NULL;
+    call_frame_t *lock_frame = NULL;
+    int lock_count = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        /* Unlock entrylk */
-        dht_unlock_entrylk_wrapper (frame, &local->lock[0].ns.directory_ns);
+    /* Unlock entrylk */
+    dht_unlock_entrylk_wrapper(frame, &local->lock[0].ns.directory_ns);
 
-        /* Unlock inodelk */
-        lock_count = dht_lock_count (local->lock[0].ns.parent_layout.locks,
-                                     local->lock[0].ns.parent_layout.lk_count);
+    /* Unlock inodelk */
+    lock_count = dht_lock_count(local->lock[0].ns.parent_layout.locks,
+                                local->lock[0].ns.parent_layout.lk_count);
 
-        if (lock_count == 0)
-                goto done;
+    if (lock_count == 0)
+        goto done;
 
-        lock_frame = copy_frame (frame);
-        if (lock_frame == NULL)
-                goto done;
+    lock_frame = copy_frame(frame);
+    if (lock_frame == NULL)
+        goto done;
 
-        lock_local = dht_local_init (lock_frame, &local->loc, NULL,
-                                     lock_frame->root->op);
-        if (lock_local == NULL)
-                goto done;
+    lock_local = dht_local_init(lock_frame, &local->loc, NULL,
+                                lock_frame->root->op);
+    if (lock_local == NULL)
+        goto done;
 
-        lock_local->lock[0].ns.parent_layout.locks = local->lock[0].ns.parent_layout.locks;
-        lock_local->lock[0].ns.parent_layout.lk_count = local->lock[0].ns.parent_layout.lk_count;
+    lock_local->lock[0].ns.parent_layout.locks = local->lock[0]
+                                                     .ns.parent_layout.locks;
+    lock_local->lock[0]
+        .ns.parent_layout.lk_count = local->lock[0].ns.parent_layout.lk_count;
 
-        local->lock[0].ns.parent_layout.locks = NULL;
-        local->lock[0].ns.parent_layout.lk_count = 0;
-        dht_unlock_inodelk (lock_frame,
-                            lock_local->lock[0].ns.parent_layout.locks,
-                            lock_local->lock[0].ns.parent_layout.lk_count,
-                            dht_rmdir_unlock_cbk);
-        lock_frame = NULL;
+    local->lock[0].ns.parent_layout.locks = NULL;
+    local->lock[0].ns.parent_layout.lk_count = 0;
+    dht_unlock_inodelk(lock_frame, lock_local->lock[0].ns.parent_layout.locks,
+                       lock_local->lock[0].ns.parent_layout.lk_count,
+                       dht_rmdir_unlock_cbk);
+    lock_frame = NULL;
 
 done:
-        if (lock_frame != NULL) {
-                DHT_STACK_DESTROY (lock_frame);
-        }
+    if (lock_frame != NULL) {
+        DHT_STACK_DESTROY(lock_frame);
+    }
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_rmdir_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                    int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_rmdir_lock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                   int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        dht_conf_t   *conf  = NULL;
-        int           i     = 0;
-        xlator_t     *hashed_subvol;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int i = 0;
+    xlator_t *hashed_subvol;
 
-        VALIDATE_OR_GOTO (this->private, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        conf = this->private;
-        local = frame->local;
+    conf = this->private;
+    local = frame->local;
 
-        if (op_ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_INODE_LK_ERROR,
-                        "acquiring entrylk after inodelk failed rmdir for %s)",
-                        local->loc.path);
+    if (op_ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_INODE_LK_ERROR,
+               "acquiring entrylk after inodelk failed rmdir for %s)",
+               local->loc.path);
 
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-                goto err;
-        }
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        goto err;
+    }
 
-        hashed_subvol = local->hashed_subvol;
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (hashed_subvol &&
-                    (hashed_subvol == conf->subvolumes[i]))
-                        continue;
+    hashed_subvol = local->hashed_subvol;
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (hashed_subvol && (hashed_subvol == conf->subvolumes[i]))
+            continue;
 
-                STACK_WIND_COOKIE (frame, dht_rmdir_cbk, conf->subvolumes[i],
-                                   conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->rmdir,
-                                   &local->loc, local->flags, NULL);
-        }
+        STACK_WIND_COOKIE(frame, dht_rmdir_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i], conf->subvolumes[i]->fops->rmdir,
+                          &local->loc, local->flags, NULL);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (rmdir, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, NULL);
+    DHT_STACK_UNWIND(rmdir, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_rmdir_do (call_frame_t *frame, xlator_t *this)
+dht_rmdir_do(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t  *local = NULL;
-        dht_conf_t   *conf = NULL;
-        int           ret = -1;
-        xlator_t     *hashed_subvol = NULL;
-        char gfid[GF_UUID_BUF_SIZE] ={0};
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    xlator_t *hashed_subvol = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        VALIDATE_OR_GOTO (this->private, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        conf = this->private;
-        local = frame->local;
+    conf = this->private;
+    local = frame->local;
 
-        if (local->op_ret == -1)
-                goto err;
+    if (local->op_ret == -1)
+        goto err;
 
-        local->call_cnt = conf->subvolume_cnt;
+    local->call_cnt = conf->subvolume_cnt;
 
-        /* first remove from non-hashed_subvol */
-        hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
+    /* first remove from non-hashed_subvol */
+    hashed_subvol = dht_subvol_get_hashed(this, &local->loc);
 
-        if (!hashed_subvol) {
-                gf_uuid_unparse(local->loc.gfid, gfid);
+    if (!hashed_subvol) {
+        gf_uuid_unparse(local->loc.gfid, gfid);
 
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                        "Failed to get hashed subvol for %s (gfid = %s)",
-                        local->loc.path, gfid);
-        } else {
-                local->hashed_subvol = hashed_subvol;
-        }
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+               "Failed to get hashed subvol for %s (gfid = %s)",
+               local->loc.path, gfid);
+    } else {
+        local->hashed_subvol = hashed_subvol;
+    }
 
-        /* When DHT has only 1 child */
-        if (conf->subvolume_cnt == 1) {
-                STACK_WIND_COOKIE (frame, dht_rmdir_hashed_subvol_cbk,
-                                   conf->subvolumes[0], conf->subvolumes[0],
-                                   conf->subvolumes[0]->fops->rmdir,
-                                   &local->loc, local->flags, NULL);
-                return 0;
-        }
+    /* When DHT has only 1 child */
+    if (conf->subvolume_cnt == 1) {
+        STACK_WIND_COOKIE(frame, dht_rmdir_hashed_subvol_cbk,
+                          conf->subvolumes[0], conf->subvolumes[0],
+                          conf->subvolumes[0]->fops->rmdir, &local->loc,
+                          local->flags, NULL);
+        return 0;
+    }
 
-        local->current = &local->lock[0];
-        ret = dht_protect_namespace (frame, &local->loc, local->hashed_subvol,
-                                     &local->current->ns, dht_rmdir_lock_cbk);
-        if (ret < 0) {
-                local->op_ret = -1;
-                local->op_errno = errno ? errno : EINVAL;
-                goto err;
-        }
+    local->current = &local->lock[0];
+    ret = dht_protect_namespace(frame, &local->loc, local->hashed_subvol,
+                                &local->current->ns, dht_rmdir_lock_cbk);
+    if (ret < 0) {
+        local->op_ret = -1;
+        local->op_errno = errno ? errno : EINVAL;
+        goto err;
+    }
 
-        return 0;
+    return 0;
 
 err:
-        dht_set_fixed_dir_stat (&local->preparent);
-        dht_set_fixed_dir_stat (&local->postparent);
+    dht_set_fixed_dir_stat(&local->preparent);
+    dht_set_fixed_dir_stat(&local->postparent);
 
-        DHT_STACK_UNWIND (rmdir, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, NULL);
-        return 0;
+    DHT_STACK_UNWIND(rmdir, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, NULL);
+    return 0;
 }
 
-
 int
-dht_rmdir_linkfile_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                               int op_ret, int op_errno, struct iatt *preparent,
-                               struct iatt *postparent, dict_t *xdata)
+dht_rmdir_linkfile_unlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                              int op_ret, int op_errno, struct iatt *preparent,
+                              struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t    *local = NULL;
-        xlator_t       *prev = NULL;
-        xlator_t       *src = NULL;
-        call_frame_t   *readdirp_frame = NULL;
-        dht_local_t    *readdirp_local = NULL;
-        int             this_call_cnt = 0;
-        char gfid[GF_UUID_BUF_SIZE] ={0};
-
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *src = NULL;
+    call_frame_t *readdirp_frame = NULL;
+    dht_local_t *readdirp_local = NULL;
+    int this_call_cnt = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        local  = frame->local;
-        prev   = cookie;
-        src    = prev;
+    local = frame->local;
+    prev = cookie;
+    src = prev;
 
+    readdirp_frame = local->main_frame;
+    readdirp_local = readdirp_frame->local;
 
-        readdirp_frame = local->main_frame;
-        readdirp_local = readdirp_frame->local;
+    gf_uuid_unparse(local->loc.gfid, gfid);
 
-        gf_uuid_unparse(local->loc.gfid, gfid);
-
-        if (op_ret == 0) {
-                gf_msg_trace (this->name, 0,
-                              "Unlinked linkfile %s on %s, gfid = %s",
-                              local->loc.path, src->name, gfid);
-        } else {
-                if (op_errno != ENOENT) {
-                        readdirp_local->op_ret   = -1;
-                        readdirp_local->op_errno = op_errno;
-                }
-                gf_msg_debug (this->name, op_errno,
-                              "Unlink of %s on %s failed. (gfid = %s)",
-                              local->loc.path, src->name, gfid);
+    if (op_ret == 0) {
+        gf_msg_trace(this->name, 0, "Unlinked linkfile %s on %s, gfid = %s",
+                     local->loc.path, src->name, gfid);
+    } else {
+        if (op_errno != ENOENT) {
+            readdirp_local->op_ret = -1;
+            readdirp_local->op_errno = op_errno;
         }
+        gf_msg_debug(this->name, op_errno,
+                     "Unlink of %s on %s failed. (gfid = %s)", local->loc.path,
+                     src->name, gfid);
+    }
 
-        this_call_cnt = dht_frame_return (readdirp_frame);
+    this_call_cnt = dht_frame_return(readdirp_frame);
 
-        if (is_last_call (this_call_cnt))
-                dht_rmdir_readdirp_do (readdirp_frame, this);
+    if (is_last_call(this_call_cnt))
+        dht_rmdir_readdirp_do(readdirp_frame, this);
 
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
-
 int
-dht_rmdir_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                      int op_ret, int op_errno, inode_t *inode,
-                      struct iatt *stbuf, dict_t *xattr, struct iatt *parent)
+dht_rmdir_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int op_ret, int op_errno, inode_t *inode,
+                     struct iatt *stbuf, dict_t *xattr, struct iatt *parent)
 {
-        dht_local_t    *local = NULL;
-        xlator_t       *prev = NULL;
-        xlator_t       *src = NULL;
-        call_frame_t   *readdirp_frame = NULL;
-        dht_local_t    *readdirp_local = NULL;
-        int             this_call_cnt = 0;
-        dht_conf_t     *conf = this->private;
-        char               gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *src = NULL;
+    call_frame_t *readdirp_frame = NULL;
+    dht_local_t *readdirp_local = NULL;
+    int this_call_cnt = 0;
+    dht_conf_t *conf = this->private;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        local = frame->local;
-        prev  = cookie;
-        src   = prev;
+    local = frame->local;
+    prev = cookie;
+    src = prev;
 
-        gf_msg_debug (this->name, 0, "dht_rmdir_lookup_cbk %s",
-                      local->loc.path);
+    gf_msg_debug(this->name, 0, "dht_rmdir_lookup_cbk %s", local->loc.path);
 
-        readdirp_frame = local->main_frame;
-        readdirp_local = readdirp_frame->local;
+    readdirp_frame = local->main_frame;
+    readdirp_local = readdirp_frame->local;
 
-        if (op_ret != 0) {
+    if (op_ret != 0) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_FILE_LOOKUP_FAILED,
+               "lookup failed for %s on %s  (type=0%o)", local->loc.path,
+               src->name, stbuf->ia_type);
+        goto err;
+    }
 
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_FILE_LOOKUP_FAILED,
-                        "lookup failed for %s on %s  (type=0%o)",
-                        local->loc.path, src->name, stbuf->ia_type);
-                goto err;
-        }
-
-        if (!check_is_linkfile (inode, stbuf, xattr, conf->link_xattr_name)) {
-                readdirp_local->op_ret  = -1;
-                readdirp_local->op_errno = ENOTEMPTY;
+    if (!check_is_linkfile(inode, stbuf, xattr, conf->link_xattr_name)) {
+        readdirp_local->op_ret = -1;
+        readdirp_local->op_errno = ENOTEMPTY;
 
-                gf_uuid_unparse(local->loc.gfid, gfid);
+        gf_uuid_unparse(local->loc.gfid, gfid);
 
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_NOT_LINK_FILE_ERROR,
-                        "%s on %s is not a linkfile (type=0%o, gfid = %s)",
-                        local->loc.path, src->name, stbuf->ia_type, gfid);
-                goto err;
-        }
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_NOT_LINK_FILE_ERROR,
+               "%s on %s is not a linkfile (type=0%o, gfid = %s)",
+               local->loc.path, src->name, stbuf->ia_type, gfid);
+        goto err;
+    }
 
-        STACK_WIND_COOKIE (frame, dht_rmdir_linkfile_unlink_cbk, src,
-                           src, src->fops->unlink, &local->loc, 0, NULL);
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_rmdir_linkfile_unlink_cbk, src, src,
+                      src->fops->unlink, &local->loc, 0, NULL);
+    return 0;
 err:
 
-        this_call_cnt = dht_frame_return (readdirp_frame);
-        if (is_last_call (this_call_cnt)) {
-                dht_rmdir_readdirp_do (readdirp_frame, this);
-        }
+    this_call_cnt = dht_frame_return(readdirp_frame);
+    if (is_last_call(this_call_cnt)) {
+        dht_rmdir_readdirp_do(readdirp_frame, this);
+    }
 
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
-
 int
-dht_rmdir_cached_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                             int op_ret, int op_errno, inode_t *inode,
-                             struct iatt *stbuf, dict_t *xattr,
-                             struct iatt *parent)
+dht_rmdir_cached_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                            int op_ret, int op_errno, inode_t *inode,
+                            struct iatt *stbuf, dict_t *xattr,
+                            struct iatt *parent)
 {
-        dht_local_t    *local             = NULL;
-        xlator_t       *src               = NULL;
-        call_frame_t   *readdirp_frame    = NULL;
-        dht_local_t    *readdirp_local    = NULL;
-        int             this_call_cnt     = 0;
-        dht_conf_t     *conf              = this->private;
-        dict_t         *xattrs            = NULL;
-        int             ret               = 0;
+    dht_local_t *local = NULL;
+    xlator_t *src = NULL;
+    call_frame_t *readdirp_frame = NULL;
+    dht_local_t *readdirp_local = NULL;
+    int this_call_cnt = 0;
+    dht_conf_t *conf = this->private;
+    dict_t *xattrs = NULL;
+    int ret = 0;
 
-        local = frame->local;
-        src   = local->hashed_subvol;
+    local = frame->local;
+    src = local->hashed_subvol;
 
+    /* main_frame here is the readdirp_frame */
 
-        /* main_frame here is the readdirp_frame */
+    readdirp_frame = local->main_frame;
+    readdirp_local = readdirp_frame->local;
 
-        readdirp_frame = local->main_frame;
-        readdirp_local = readdirp_frame->local;
+    gf_msg_debug(this->name, 0, "returning for %s ", local->loc.path);
 
-        gf_msg_debug (this->name, 0, "returning for %s ",
-                      local->loc.path);
+    if (op_ret == 0) {
+        readdirp_local->op_ret = -1;
+        readdirp_local->op_errno = ENOTEMPTY;
 
-        if (op_ret == 0) {
-                readdirp_local->op_ret  = -1;
-                readdirp_local->op_errno = ENOTEMPTY;
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_SUBVOL_ERROR,
+               "%s found on cached subvol %s", local->loc.path, src->name);
+        goto err;
+    } else if (op_errno != ENOENT) {
+        readdirp_local->op_ret = -1;
+        readdirp_local->op_errno = op_errno;
 
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_SUBVOL_ERROR,
-                        "%s found on cached subvol %s",
-                        local->loc.path, src->name);
-                goto err;
-        } else if (op_errno != ENOENT) {
-                readdirp_local->op_ret  = -1;
-                readdirp_local->op_errno = op_errno;
-
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_SUBVOL_ERROR,
-                        "%s not found on cached subvol %s",
-                        local->loc.path, src->name);
-                goto err;
-        }
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_SUBVOL_ERROR,
+               "%s not found on cached subvol %s", local->loc.path, src->name);
+        goto err;
+    }
 
-        xattrs = dict_new ();
-        if (!xattrs) {
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_NO_MEMORY, "dict_new failed");
-                goto err;
-        }
+    xattrs = dict_new();
+    if (!xattrs) {
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "dict_new failed");
+        goto err;
+    }
 
-        ret = dict_set_uint32 (xattrs, conf->link_xattr_name, 256);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value: key = %s",
-                        conf->link_xattr_name);
-                if (xattrs)
-                        dict_unref (xattrs);
-                goto err;
-        }
-        STACK_WIND_COOKIE (frame, dht_rmdir_lookup_cbk, src, src,
-                           src->fops->lookup, &local->loc, xattrs);
+    ret = dict_set_uint32(xattrs, conf->link_xattr_name, 256);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value: key = %s",
+               conf->link_xattr_name);
         if (xattrs)
-                dict_unref (xattrs);
-
-        return 0;
+            dict_unref(xattrs);
+        goto err;
+    }
+    STACK_WIND_COOKIE(frame, dht_rmdir_lookup_cbk, src, src, src->fops->lookup,
+                      &local->loc, xattrs);
+    if (xattrs)
+        dict_unref(xattrs);
+
+    return 0;
 err:
 
-        this_call_cnt = dht_frame_return (readdirp_frame);
+    this_call_cnt = dht_frame_return(readdirp_frame);
 
-        /* Once all the lookups/unlinks etc have returned, proceed to wind
-         * readdirp on the subvol again until no entries are returned.
-         * This is required if there are more entries than can be returned
-         * in a single readdirp call.
-         */
+    /* Once all the lookups/unlinks etc have returned, proceed to wind
+     * readdirp on the subvol again until no entries are returned.
+     * This is required if there are more entries than can be returned
+     * in a single readdirp call.
+     */
 
-        if (is_last_call (this_call_cnt))
-                dht_rmdir_readdirp_do (readdirp_frame, this);
+    if (is_last_call(this_call_cnt))
+        dht_rmdir_readdirp_do(readdirp_frame, this);
 
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
-
 int
-dht_rmdir_is_subvol_empty (call_frame_t *frame, xlator_t *this,
-                           gf_dirent_t *entries, xlator_t *src)
+dht_rmdir_is_subvol_empty(call_frame_t *frame, xlator_t *this,
+                          gf_dirent_t *entries, xlator_t *src)
 {
-        int                 ret          = 0;
-        int                 build_ret    = 0;
-        gf_dirent_t        *trav         = NULL;
-        call_frame_t       *lookup_frame = NULL;
-        dht_local_t        *lookup_local = NULL;
-        dht_local_t        *local        = NULL;
-        dict_t             *xattrs       = NULL;
-        dht_conf_t         *conf         = this->private;
-        xlator_t           *subvol       = NULL;
-        char                gfid[GF_UUID_BUF_SIZE] = {0};
-        int                 count        = 0;
-        gf_boolean_t        unwind        = _gf_false;
-
-
-        local = frame->local;
+    int ret = 0;
+    int build_ret = 0;
+    gf_dirent_t *trav = NULL;
+    call_frame_t *lookup_frame = NULL;
+    dht_local_t *lookup_local = NULL;
+    dht_local_t *local = NULL;
+    dict_t *xattrs = NULL;
+    dht_conf_t *conf = this->private;
+    xlator_t *subvol = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    int count = 0;
+    gf_boolean_t unwind = _gf_false;
 
-        list_for_each_entry (trav, &entries->list, list) {
-                if (strcmp (trav->d_name, ".") == 0)
-                        continue;
-                if (strcmp (trav->d_name, "..") == 0)
-                        continue;
-                if (check_is_linkfile (NULL, (&trav->d_stat), trav->dict,
-                                              conf->link_xattr_name)) {
-                        count++;
-                        continue;
-                }
+    local = frame->local;
 
-                /* this entry is either a directory which is neither "." nor "..",
-                   or a non directory which is not a linkfile. the directory is to
-                   be treated as non-empty
-                */
-                return 0;
+    list_for_each_entry(trav, &entries->list, list)
+    {
+        if (strcmp(trav->d_name, ".") == 0)
+            continue;
+        if (strcmp(trav->d_name, "..") == 0)
+            continue;
+        if (check_is_linkfile(NULL, (&trav->d_stat), trav->dict,
+                              conf->link_xattr_name)) {
+            count++;
+            continue;
         }
 
-        xattrs = dict_new ();
-        if (!xattrs) {
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_NO_MEMORY, "dict_new failed");
-                return -1;
-        }
+        /* this entry is either a directory which is neither "." nor "..",
+           or a non directory which is not a linkfile. the directory is to
+           be treated as non-empty
+        */
+        return 0;
+    }
 
-        ret = dict_set_uint32 (xattrs, conf->link_xattr_name, 256);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value: key = %s",
-                        conf->link_xattr_name);
+    xattrs = dict_new();
+    if (!xattrs) {
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "dict_new failed");
+        return -1;
+    }
 
-                if (xattrs)
-                        dict_unref (xattrs);
-                return -1;
-        }
+    ret = dict_set_uint32(xattrs, conf->link_xattr_name, 256);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value: key = %s",
+               conf->link_xattr_name);
 
-        local->call_cnt = count;
-        ret = 0;
+        if (xattrs)
+            dict_unref(xattrs);
+        return -1;
+    }
 
-        list_for_each_entry (trav, &entries->list, list) {
-                if (strcmp (trav->d_name, ".") == 0)
-                        continue;
-                if (strcmp (trav->d_name, "..") == 0)
-                        continue;
+    local->call_cnt = count;
+    ret = 0;
 
-                lookup_frame = copy_frame (frame);
+    list_for_each_entry(trav, &entries->list, list)
+    {
+        if (strcmp(trav->d_name, ".") == 0)
+            continue;
+        if (strcmp(trav->d_name, "..") == 0)
+            continue;
 
-                if (!lookup_frame) {
-                        /* out of memory, let the rmdir fail
-                           (as non-empty, unfortunately) */
-                        goto err;
-                }
+        lookup_frame = copy_frame(frame);
 
-                lookup_local = dht_local_init (lookup_frame, NULL, NULL,
-                                               GF_FOP_LOOKUP);
-                if (!lookup_local) {
-                        goto err;
-                }
+        if (!lookup_frame) {
+            /* out of memory, let the rmdir fail
+               (as non-empty, unfortunately) */
+            goto err;
+        }
 
-                lookup_frame->local = lookup_local;
-                lookup_local->main_frame = frame;
-                lookup_local->hashed_subvol = src;
+        lookup_local = dht_local_init(lookup_frame, NULL, NULL, GF_FOP_LOOKUP);
+        if (!lookup_local) {
+            goto err;
+        }
 
-                build_ret = dht_build_child_loc (this, &lookup_local->loc,
-                                                 &local->loc, trav->d_name);
-                if (build_ret != 0)
-                        goto err;
+        lookup_frame->local = lookup_local;
+        lookup_local->main_frame = frame;
+        lookup_local->hashed_subvol = src;
 
-                gf_uuid_copy (lookup_local->loc.gfid, trav->d_stat.ia_gfid);
+        build_ret = dht_build_child_loc(this, &lookup_local->loc, &local->loc,
+                                        trav->d_name);
+        if (build_ret != 0)
+            goto err;
 
-                gf_uuid_unparse(lookup_local->loc.gfid, gfid);
+        gf_uuid_copy(lookup_local->loc.gfid, trav->d_stat.ia_gfid);
 
-                gf_msg_trace (this->name, 0,
-                              "looking up %s on subvolume %s, gfid = %s",
-                              lookup_local->loc.path, src->name, gfid);
+        gf_uuid_unparse(lookup_local->loc.gfid, gfid);
 
-                subvol = dht_linkfile_subvol (this, NULL, &trav->d_stat,
-                                              trav->dict);
-                if (!subvol) {
+        gf_msg_trace(this->name, 0, "looking up %s on subvolume %s, gfid = %s",
+                     lookup_local->loc.path, src->name, gfid);
 
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_INVALID_LINKFILE,
-                                "Linkfile does not have link subvolume. "
-                                "path = %s, gfid = %s",
-                                lookup_local->loc.path, gfid);
+        subvol = dht_linkfile_subvol(this, NULL, &trav->d_stat, trav->dict);
+        if (!subvol) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_INVALID_LINKFILE,
+                   "Linkfile does not have link subvolume. "
+                   "path = %s, gfid = %s",
+                   lookup_local->loc.path, gfid);
 
-                        gf_msg_debug (this->name, 0,
-                                      "looking up %s on subvol %s, gfid = %s",
-                                      lookup_local->loc.path, src->name, gfid);
+            gf_msg_debug(this->name, 0, "looking up %s on subvol %s, gfid = %s",
+                         lookup_local->loc.path, src->name, gfid);
 
-                        STACK_WIND_COOKIE (lookup_frame, dht_rmdir_lookup_cbk,
-                                           src, src, src->fops->lookup,
-                                           &lookup_local->loc, xattrs);
-                } else {
-                        gf_msg_debug (this->name, 0,
-                                      "Looking up linkfile target %s on "
-                                      " subvol %s, gfid = %s",
-                                      lookup_local->loc.path, subvol->name,
-                                      gfid);
-
-                        STACK_WIND (lookup_frame, dht_rmdir_cached_lookup_cbk,
-                                    subvol, subvol->fops->lookup,
-                                    &lookup_local->loc, xattrs);
-                }
-                ret++;
+            STACK_WIND_COOKIE(lookup_frame, dht_rmdir_lookup_cbk, src, src,
+                              src->fops->lookup, &lookup_local->loc, xattrs);
+        } else {
+            gf_msg_debug(this->name, 0,
+                         "Looking up linkfile target %s on "
+                         " subvol %s, gfid = %s",
+                         lookup_local->loc.path, subvol->name, gfid);
 
-                lookup_frame = NULL;
-                lookup_local = NULL;
+            STACK_WIND(lookup_frame, dht_rmdir_cached_lookup_cbk, subvol,
+                       subvol->fops->lookup, &lookup_local->loc, xattrs);
         }
+        ret++;
 
-        if (xattrs)
-                dict_unref (xattrs);
+        lookup_frame = NULL;
+        lookup_local = NULL;
+    }
 
-        return ret;
+    if (xattrs)
+        dict_unref(xattrs);
+
+    return ret;
 err:
-        if (xattrs)
-                dict_unref (xattrs);
+    if (xattrs)
+        dict_unref(xattrs);
 
-        if (lookup_frame)
-                DHT_STACK_DESTROY (lookup_frame);
+    if (lookup_frame)
+        DHT_STACK_DESTROY(lookup_frame);
 
-        /* Handle the case where the wound calls have unwound before the
-         * loop processing is done
-         */
+    /* Handle the case where the wound calls have unwound before the
+     * loop processing is done
+     */
 
-        LOCK (&frame->lock);
-        {
-                local->op_ret = -1;
-                local->op_errno = ENOTEMPTY;
+    LOCK(&frame->lock);
+    {
+        local->op_ret = -1;
+        local->op_errno = ENOTEMPTY;
 
-                local->call_cnt -= (count - ret);
-                if (!local->call_cnt)
-                        unwind = _gf_true;
-        }
-        UNLOCK (&frame->lock);
+        local->call_cnt -= (count - ret);
+        if (!local->call_cnt)
+            unwind = _gf_true;
+    }
+    UNLOCK(&frame->lock);
 
-        if (!unwind) {
-                return ret;
-        }
-        return 0;
+    if (!unwind) {
+        return ret;
+    }
+    return 0;
 }
 
-
-
 /*
  * No more entries on this subvol. Proceed to the actual rmdir operation.
  */
 
 void
-dht_rmdir_readdirp_done (call_frame_t *readdirp_frame, xlator_t *this)
+dht_rmdir_readdirp_done(call_frame_t *readdirp_frame, xlator_t *this)
 {
+    call_frame_t *main_frame = NULL;
+    dht_local_t *main_local = NULL;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
 
-        call_frame_t      *main_frame    = NULL;
-        dht_local_t       *main_local         = NULL;
-        dht_local_t       *local         = NULL;
-        int                this_call_cnt = 0;
-
+    local = readdirp_frame->local;
+    main_frame = local->main_frame;
+    main_local = main_frame->local;
 
-        local = readdirp_frame->local;
-        main_frame = local->main_frame;
-        main_local = main_frame->local;
+    /* At least one readdirp failed.
+     * This is a bit hit or miss - if readdirp failed on more than
+     * one subvol, we don't know which error is returned.
+     */
+    if (local->op_ret == -1) {
+        main_local->op_ret = local->op_ret;
+        main_local->op_errno = local->op_errno;
+    }
 
-        /* At least one readdirp failed.
-         * This is a bit hit or miss - if readdirp failed on more than
-         * one subvol, we don't know which error is returned.
-         */
-        if (local->op_ret == -1) {
-                main_local->op_ret = local->op_ret;
-                main_local->op_errno = local->op_errno;
-        }
+    this_call_cnt = dht_frame_return(main_frame);
 
-        this_call_cnt = dht_frame_return (main_frame);
+    if (is_last_call(this_call_cnt))
+        dht_rmdir_do(main_frame, this);
 
-        if (is_last_call (this_call_cnt))
-                dht_rmdir_do (main_frame, this);
-
-
-        DHT_STACK_DESTROY (readdirp_frame);
+    DHT_STACK_DESTROY(readdirp_frame);
 }
 
-
-
 int
-dht_rmdir_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int op_ret, int op_errno, gf_dirent_t *entries,
-                        dict_t *xdata)
+dht_rmdir_readdirp_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int op_ret, int op_errno, gf_dirent_t *entries,
+                       dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        xlator_t     *src = NULL;
-        int           ret = 0;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *src = NULL;
+    int ret = 0;
 
+    local = frame->local;
+    prev = cookie;
+    src = prev;
 
-        local = frame->local;
-        prev  = cookie;
-        src   = prev;
-
-        if (op_ret > 2) {
-                ret = dht_rmdir_is_subvol_empty (frame, this, entries, src);
-
-                switch (ret) {
-                case 0: /* non linkfiles exist */
-                        gf_msg_trace (this->name, 0,
-                                      "readdir on %s for %s returned %d "
-                                      "entries", prev->name,
-                                      local->loc.path, op_ret);
-                        local->op_ret = -1;
-                        local->op_errno = ENOTEMPTY;
-                        goto done;
-                default:
-                        /* @ret number of linkfiles are getting unlinked */
-                        gf_msg_trace (this->name, 0,
-                                      "readdir on %s for %s found %d "
-                                      "linkfiles", prev->name,
-                                      local->loc.path, ret);
-                        break;
-                }
+    if (op_ret > 2) {
+        ret = dht_rmdir_is_subvol_empty(frame, this, entries, src);
 
+        switch (ret) {
+            case 0: /* non linkfiles exist */
+                gf_msg_trace(this->name, 0,
+                             "readdir on %s for %s returned %d "
+                             "entries",
+                             prev->name, local->loc.path, op_ret);
+                local->op_ret = -1;
+                local->op_errno = ENOTEMPTY;
+                goto done;
+            default:
+                /* @ret number of linkfiles are getting unlinked */
+                gf_msg_trace(this->name, 0,
+                             "readdir on %s for %s found %d "
+                             "linkfiles",
+                             prev->name, local->loc.path, ret);
+                break;
         }
+    }
 
-
-        if (ret) {
-                return 0;
-        }
+    if (ret) {
+        return 0;
+    }
 
 done:
-        /* readdirp failed or no linkto files were found on this subvol */
+    /* readdirp failed or no linkto files were found on this subvol */
 
-        dht_rmdir_readdirp_done (frame, this);
-        return 0;
+    dht_rmdir_readdirp_done(frame, this);
+    return 0;
 }
 
 /* Keep sending readdirp on the subvol until it returns no more entries
@@ -10746,214 +10095,202 @@ done:
  */
 
 int
-dht_rmdir_readdirp_do (call_frame_t *readdirp_frame, xlator_t *this)
+dht_rmdir_readdirp_do(call_frame_t *readdirp_frame, xlator_t *this)
 {
-        dht_local_t *local  = NULL;
-
-        local = readdirp_frame->local;
-
-        if (local->op_ret == -1) {
-                /* there is no point doing another readdirp on this
-                 * subvol . */
-                dht_rmdir_readdirp_done (readdirp_frame, this);
-                return 0;
-        }
-
-        STACK_WIND_COOKIE (readdirp_frame, dht_rmdir_readdirp_cbk,
-                           local->hashed_subvol,
-                           local->hashed_subvol,
-                           local->hashed_subvol->fops->readdirp,
-                           local->fd, 4096, 0, local->xattr);
+    dht_local_t *local = NULL;
 
+    local = readdirp_frame->local;
 
+    if (local->op_ret == -1) {
+        /* there is no point doing another readdirp on this
+         * subvol . */
+        dht_rmdir_readdirp_done(readdirp_frame, this);
         return 0;
+    }
 
-}
+    STACK_WIND_COOKIE(readdirp_frame, dht_rmdir_readdirp_cbk,
+                      local->hashed_subvol, local->hashed_subvol,
+                      local->hashed_subvol->fops->readdirp, local->fd, 4096, 0,
+                      local->xattr);
 
+    return 0;
+}
 
 int
-dht_rmdir_opendir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int op_ret, int op_errno, fd_t *fd, dict_t *xdata)
+dht_rmdir_opendir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int op_ret, int op_errno, fd_t *fd, dict_t *xdata)
 {
-        dht_local_t  *local         = NULL;
-        int           this_call_cnt = -1;
-        xlator_t     *prev          = NULL;
-        int           ret           = 0;
-        dht_conf_t   *conf          = this->private;
-        dict_t       *dict          = NULL;
-        int           i             = 0;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
-        dht_local_t  *readdirp_local = NULL;
-        call_frame_t *readdirp_frame = NULL;
-        int           cnt           = 0;
+    dht_local_t *local = NULL;
+    int this_call_cnt = -1;
+    xlator_t *prev = NULL;
+    int ret = 0;
+    dht_conf_t *conf = this->private;
+    dict_t *dict = NULL;
+    int i = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_local_t *readdirp_local = NULL;
+    call_frame_t *readdirp_frame = NULL;
+    int cnt = 0;
 
-        local = frame->local;
-        prev  = cookie;
+    local = frame->local;
+    prev = cookie;
 
+    this_call_cnt = dht_frame_return(frame);
+    if (op_ret == -1) {
+        gf_uuid_unparse(local->loc.gfid, gfid);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (op_ret == -1) {
-                gf_uuid_unparse(local->loc.gfid, gfid);
-
-                gf_msg_debug (this->name, op_errno,
-                              "opendir on %s for %s failed, "
-                              "gfid = %s,",
-                              prev->name, local->loc.path, gfid);
-                if ((op_errno != ENOENT) && (op_errno != ESTALE)) {
-                        local->op_ret = -1;
-                        local->op_errno = op_errno;
-                }
-                goto err;
+        gf_msg_debug(this->name, op_errno,
+                     "opendir on %s for %s failed, "
+                     "gfid = %s,",
+                     prev->name, local->loc.path, gfid);
+        if ((op_errno != ENOENT) && (op_errno != ESTALE)) {
+            local->op_ret = -1;
+            local->op_errno = op_errno;
         }
+        goto err;
+    }
 
-        if (!is_last_call (this_call_cnt))
-                return 0;
-
-        if (local->op_ret == -1)
-                goto err;
-
-        fd_bind (fd);
+    if (!is_last_call(this_call_cnt))
+        return 0;
 
-        dict = dict_new ();
-        if (!dict) {
-                local->op_ret = -1;
-                local->op_errno = ENOMEM;
-                goto err;
-        }
+    if (local->op_ret == -1)
+        goto err;
 
-        ret = dict_set_uint32 (dict, conf->link_xattr_name, 256);
-        if (ret)
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "%s: Failed to set dictionary value:key = %s",
-                        local->loc.path, conf->link_xattr_name);
-
-        cnt = local->call_cnt = conf->subvolume_cnt;
+    fd_bind(fd);
 
+    dict = dict_new();
+    if (!dict) {
+        local->op_ret = -1;
+        local->op_errno = ENOMEM;
+        goto err;
+    }
 
-        /* Create a separate frame per subvol as we might need
-         * to resend readdirp multiple times to get all the
-         * entries.
-         */
+    ret = dict_set_uint32(dict, conf->link_xattr_name, 256);
+    if (ret)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "%s: Failed to set dictionary value:key = %s", local->loc.path,
+               conf->link_xattr_name);
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
+    cnt = local->call_cnt = conf->subvolume_cnt;
 
-                readdirp_frame = copy_frame (frame);
+    /* Create a separate frame per subvol as we might need
+     * to resend readdirp multiple times to get all the
+     * entries.
+     */
 
-                if (!readdirp_frame) {
-                        cnt--;
-                        /* Reduce the local->call_cnt as well */
-                        (void) dht_frame_return (frame);
-                        continue;
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        readdirp_frame = copy_frame(frame);
 
-                readdirp_local = dht_local_init (readdirp_frame, &local->loc,
-                                                 local->fd, 0);
+        if (!readdirp_frame) {
+            cnt--;
+            /* Reduce the local->call_cnt as well */
+            (void)dht_frame_return(frame);
+            continue;
+        }
 
-                if (!readdirp_local) {
-                        DHT_STACK_DESTROY (readdirp_frame);
-                        cnt--;
-                        /* Reduce the local->call_cnt as well */
-                        dht_frame_return (frame);
-                        continue;
-                }
-                readdirp_local->main_frame = frame;
-                readdirp_local->op_ret = 0;
-                readdirp_local->xattr = dict_ref (dict);
-                /* overload this field to save the subvol info */
-                readdirp_local->hashed_subvol = conf->subvolumes[i];
+        readdirp_local = dht_local_init(readdirp_frame, &local->loc, local->fd,
+                                        0);
 
-                STACK_WIND_COOKIE (readdirp_frame, dht_rmdir_readdirp_cbk,
-                                   conf->subvolumes[i], conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->readdirp,
-                                   readdirp_local->fd, 4096, 0,
-                                   readdirp_local->xattr);
+        if (!readdirp_local) {
+            DHT_STACK_DESTROY(readdirp_frame);
+            cnt--;
+            /* Reduce the local->call_cnt as well */
+            dht_frame_return(frame);
+            continue;
         }
+        readdirp_local->main_frame = frame;
+        readdirp_local->op_ret = 0;
+        readdirp_local->xattr = dict_ref(dict);
+        /* overload this field to save the subvol info */
+        readdirp_local->hashed_subvol = conf->subvolumes[i];
 
-        if (dict)
-                dict_unref (dict);
+        STACK_WIND_COOKIE(readdirp_frame, dht_rmdir_readdirp_cbk,
+                          conf->subvolumes[i], conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->readdirp,
+                          readdirp_local->fd, 4096, 0, readdirp_local->xattr);
+    }
 
-        /* Could not wind readdirp to any subvol */
+    if (dict)
+        dict_unref(dict);
 
-        if (!cnt)
-                goto err;
+    /* Could not wind readdirp to any subvol */
 
-        return 0;
+    if (!cnt)
+        goto err;
+
+    return 0;
 
 err:
-        if (is_last_call (this_call_cnt)) {
-                dht_rmdir_do (frame, this);
-        }
+    if (is_last_call(this_call_cnt)) {
+        dht_rmdir_do(frame, this);
+    }
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_rmdir (call_frame_t *frame, xlator_t *this, loc_t *loc, int flags,
-           dict_t *xdata)
+dht_rmdir(call_frame_t *frame, xlator_t *this, loc_t *loc, int flags,
+          dict_t *xdata)
 {
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           op_errno = -1;
-        int           i = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-        VALIDATE_OR_GOTO (this->private, err);
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = -1;
+    int i = -1;
 
-        conf = this->private;
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+    VALIDATE_OR_GOTO(this->private, err);
 
-        local = dht_local_init (frame, loc, NULL, GF_FOP_RMDIR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    conf = this->private;
 
-        local->call_cnt = conf->subvolume_cnt;
-        local->op_ret   = 0;
-        local->fop_succeeded = 0;
+    local = dht_local_init(frame, loc, NULL, GF_FOP_RMDIR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        local->flags = flags;
+    local->call_cnt = conf->subvolume_cnt;
+    local->op_ret = 0;
+    local->fop_succeeded = 0;
 
-        local->fd = fd_create (local->loc.inode, frame->root->pid);
-        if (!local->fd) {
+    local->flags = flags;
 
-                op_errno = ENOMEM;
-                goto err;
-        }
+    local->fd = fd_create(local->loc.inode, frame->root->pid);
+    if (!local->fd) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        if (flags) {
-                return dht_rmdir_do (frame, this);
-        }
+    if (flags) {
+        return dht_rmdir_do(frame, this);
+    }
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                STACK_WIND_COOKIE (frame, dht_rmdir_opendir_cbk,
-                                   conf->subvolumes[i], conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->opendir,
-                                   loc, local->fd, NULL);
-        }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        STACK_WIND_COOKIE(frame, dht_rmdir_opendir_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->opendir, loc, local->fd,
+                          NULL);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (rmdir, frame, -1, op_errno,
-                          NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(rmdir, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_entrylk_cbk (call_frame_t *frame, void *cookie,
-                 xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_entrylk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                int32_t op_ret, int32_t op_errno, dict_t *xdata)
 
 {
-        DHT_STACK_UNWIND (entrylk, frame, op_ret, op_errno, xdata);
-        return 0;
+    DHT_STACK_UNWIND(entrylk, frame, op_ret, op_errno, xdata);
+    return 0;
 }
 
 /* TODO
@@ -10961,765 +10298,735 @@ dht_entrylk_cbk (call_frame_t *frame, void *cookie,
  * as described in the bug 1311002.
  */
 int
-dht_entrylk (call_frame_t *frame, xlator_t *this,
-             const char *volume, loc_t *loc, const char *basename,
-             entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
+dht_entrylk(call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc,
+            const char *basename, entrylk_cmd cmd, entrylk_type type,
+            dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
 
-        local = dht_local_init (frame, loc, NULL, GF_FOP_ENTRYLK);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    local = dht_local_init(frame, loc, NULL, GF_FOP_ENTRYLK);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_uuid_unparse(loc->gfid, gfid);
 
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_uuid_unparse(loc->gfid, gfid);
-
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s, "
-                              "gfid = %s", loc->path, gfid);
-                op_errno = EINVAL;
-                goto err;
-        }
+        gf_msg_debug(this->name, 0,
+                     "no cached subvolume for path=%s, "
+                     "gfid = %s",
+                     loc->path, gfid);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        local->call_cnt = 1;
+    local->call_cnt = 1;
 
-        STACK_WIND (frame, dht_entrylk_cbk,
-                    subvol, subvol->fops->entrylk,
-                    volume, loc, basename, cmd, type, xdata);
+    STACK_WIND(frame, dht_entrylk_cbk, subvol, subvol->fops->entrylk, volume,
+               loc, basename, cmd, type, xdata);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (entrylk, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(entrylk, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fentrylk_cbk (call_frame_t *frame, void *cookie,
-                  xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_fentrylk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                 int32_t op_ret, int32_t op_errno, dict_t *xdata)
 
 {
-        DHT_STACK_UNWIND (fentrylk, frame, op_ret, op_errno, NULL);
-        return 0;
+    DHT_STACK_UNWIND(fentrylk, frame, op_ret, op_errno, NULL);
+    return 0;
 }
 
-
 int
-dht_fentrylk (call_frame_t *frame, xlator_t *this,
-              const char *volume, fd_t *fd, const char *basename,
-              entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
+dht_fentrylk(call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd,
+             const char *basename, entrylk_cmd cmd, entrylk_type type,
+             dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        char               gfid[GF_UUID_BUF_SIZE] = {0};
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+    VALIDATE_OR_GOTO(fd->inode, err);
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-        VALIDATE_OR_GOTO(fd->inode, err);
+    gf_uuid_unparse(fd->inode->gfid, gfid);
 
-        gf_uuid_unparse(fd->inode->gfid, gfid);
+    subvol = dht_subvol_get_cached(this, fd->inode);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0,
+                     "No cached subvolume for fd=%p,"
+                     " gfid = %s",
+                     fd, gfid);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        subvol = dht_subvol_get_cached (this, fd->inode);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "No cached subvolume for fd=%p,"
-                              " gfid = %s", fd, gfid);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        STACK_WIND (frame, dht_fentrylk_cbk,
-                    subvol, subvol->fops->fentrylk,
-                    volume, fd, basename, cmd, type, xdata);
+    STACK_WIND(frame, dht_fentrylk_cbk, subvol, subvol->fops->fentrylk, volume,
+               fd, basename, cmd, type, xdata);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fentrylk, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fentrylk, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int32_t
-dht_ipc_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-             int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_ipc_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret,
+            int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t  *local                   = NULL;
-        int           this_call_cnt           = 0;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
 
-        local = frame->local;
+    local = frame->local;
 
-        LOCK (&frame->lock);
-        {
-                if (op_ret < 0 && op_errno != ENOTCONN) {
-                        local->op_errno = op_errno;
-                        goto unlock;
-                }
-                local->op_ret = 0;
+    LOCK(&frame->lock);
+    {
+        if (op_ret < 0 && op_errno != ENOTCONN) {
+            local->op_errno = op_errno;
+            goto unlock;
         }
+        local->op_ret = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                DHT_STACK_UNWIND (ipc, frame, local->op_ret, local->op_errno,
-                                  NULL);
-        }
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        DHT_STACK_UNWIND(ipc, frame, local->op_ret, local->op_errno, NULL);
+    }
 
 out:
-        return 0;
+    return 0;
 }
 
-
 int32_t
-dht_ipc (call_frame_t *frame, xlator_t *this, int32_t op, dict_t *xdata)
+dht_ipc(call_frame_t *frame, xlator_t *this, int32_t op, dict_t *xdata)
 {
-        dht_local_t  *local    = NULL;
-        int           op_errno = EINVAL;
-        dht_conf_t   *conf     = NULL;
-        int           call_cnt = 0;
-        int           i        = 0;
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
+    dht_conf_t *conf = NULL;
+    int call_cnt = 0;
+    int i = 0;
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
 
-        if (op != GF_IPC_TARGET_UPCALL)
-                goto wind_default;
+    if (op != GF_IPC_TARGET_UPCALL)
+        goto wind_default;
 
-        VALIDATE_OR_GOTO (this->private, err);
-        conf = this->private;
+    VALIDATE_OR_GOTO(this->private, err);
+    conf = this->private;
 
-        local = dht_local_init (frame, NULL, NULL, GF_FOP_IPC);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    local = dht_local_init(frame, NULL, NULL, GF_FOP_IPC);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        call_cnt        = conf->subvolume_cnt;
-        local->call_cnt = call_cnt;
+    call_cnt = conf->subvolume_cnt;
+    local->call_cnt = call_cnt;
 
-        if (xdata) {
-                if (dict_set_int8 (xdata, conf->xattr_name, 0) < 0)
-                        goto err;
-        }
+    if (xdata) {
+        if (dict_set_int8(xdata, conf->xattr_name, 0) < 0)
+            goto err;
+    }
 
-        for (i = 0; i < call_cnt; i++) {
-                STACK_WIND (frame, dht_ipc_cbk, conf->subvolumes[i],
-                            conf->subvolumes[i]->fops->ipc, op, xdata);
-        }
+    for (i = 0; i < call_cnt; i++) {
+        STACK_WIND(frame, dht_ipc_cbk, conf->subvolumes[i],
+                   conf->subvolumes[i]->fops->ipc, op, xdata);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (ipc, frame, -1, op_errno, NULL);
+    DHT_STACK_UNWIND(ipc, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 
 wind_default:
-        STACK_WIND (frame, default_ipc_cbk, FIRST_CHILD (this),
-                    FIRST_CHILD (this)->fops->ipc, op, xdata);
-        return 0;
+    STACK_WIND(frame, default_ipc_cbk, FIRST_CHILD(this),
+               FIRST_CHILD(this)->fops->ipc, op, xdata);
+    return 0;
 }
 
-
 int
-dht_forget (xlator_t *this, inode_t *inode)
+dht_forget(xlator_t *this, inode_t *inode)
 {
-        uint64_t        ctx_int = 0;
-        dht_inode_ctx_t *ctx    = NULL;
-        dht_layout_t *layout = NULL;
+    uint64_t ctx_int = 0;
+    dht_inode_ctx_t *ctx = NULL;
+    dht_layout_t *layout = NULL;
 
-        inode_ctx_del (inode, this, &ctx_int);
+    inode_ctx_del(inode, this, &ctx_int);
 
-        if (!ctx_int)
-                return 0;
+    if (!ctx_int)
+        return 0;
 
-        ctx = (dht_inode_ctx_t *) (long) ctx_int;
+    ctx = (dht_inode_ctx_t *)(long)ctx_int;
 
-        layout = ctx->layout;
-        ctx->layout = NULL;
-        dht_layout_unref (this, layout);
-        GF_FREE (ctx);
+    layout = ctx->layout;
+    ctx->layout = NULL;
+    dht_layout_unref(this, layout);
+    GF_FREE(ctx);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_notify (xlator_t *this, int event, void *data, ...)
+dht_notify(xlator_t *this, int event, void *data, ...)
 {
-        xlator_t                *subvol = NULL;
-        int                      cnt    = -1;
-        int                      i      = -1;
-        dht_conf_t              *conf   = NULL;
-        int                      ret    = -1;
-        int                      propagate = 0;
+    xlator_t *subvol = NULL;
+    int cnt = -1;
+    int i = -1;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    int propagate = 0;
 
-        int                      had_heard_from_all = 0;
-        int                      have_heard_from_all = 0;
-        struct timeval           time = {0,};
-        gf_defrag_info_t        *defrag = NULL;
-        dict_t                  *dict   = NULL;
-        gf_defrag_type           cmd    = 0;
-        dict_t                  *output = NULL;
-        va_list                  ap;
-        dht_methods_t           *methods = NULL;
-        struct gf_upcall        *up_data = NULL;
-        struct gf_upcall_cache_invalidation *up_ci = NULL;
+    int had_heard_from_all = 0;
+    int have_heard_from_all = 0;
+    struct timeval time = {
+        0,
+    };
+    gf_defrag_info_t *defrag = NULL;
+    dict_t *dict = NULL;
+    gf_defrag_type cmd = 0;
+    dict_t *output = NULL;
+    va_list ap;
+    dht_methods_t *methods = NULL;
+    struct gf_upcall *up_data = NULL;
+    struct gf_upcall_cache_invalidation *up_ci = NULL;
 
-        conf = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, out);
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, out);
 
-        methods = &(conf->methods);
+    methods = &(conf->methods);
 
-        /* had all subvolumes reported status once till now? */
-        had_heard_from_all = 1;
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (!conf->last_event[i]) {
-                        had_heard_from_all = 0;
-                }
+    /* had all subvolumes reported status once till now? */
+    had_heard_from_all = 1;
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (!conf->last_event[i]) {
+            had_heard_from_all = 0;
         }
+    }
 
-        switch (event) {
+    switch (event) {
         case GF_EVENT_CHILD_UP:
-                subvol = data;
+            subvol = data;
 
-                conf->gen++;
+            conf->gen++;
 
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (subvol == conf->subvolumes[i]) {
-                                cnt = i;
-                                break;
-                        }
+            for (i = 0; i < conf->subvolume_cnt; i++) {
+                if (subvol == conf->subvolumes[i]) {
+                    cnt = i;
+                    break;
                 }
+            }
 
-                if (cnt == -1) {
-                        gf_msg_debug (this->name, 0,
-                                      "got GF_EVENT_CHILD_UP bad "
-                                      "subvolume %s",
-                                      subvol->name);
-                        break;
-                }
+            if (cnt == -1) {
+                gf_msg_debug(this->name, 0,
+                             "got GF_EVENT_CHILD_UP bad "
+                             "subvolume %s",
+                             subvol->name);
+                break;
+            }
 
-                gettimeofday (&time, NULL);
-                LOCK (&conf->subvolume_lock);
-                {
-                        conf->subvolume_status[cnt] = 1;
-                        conf->last_event[cnt] = event;
-                        conf->subvol_up_time[cnt] = time.tv_sec;
-                }
-                UNLOCK (&conf->subvolume_lock);
+            gettimeofday(&time, NULL);
+            LOCK(&conf->subvolume_lock);
+            {
+                conf->subvolume_status[cnt] = 1;
+                conf->last_event[cnt] = event;
+                conf->subvol_up_time[cnt] = time.tv_sec;
+            }
+            UNLOCK(&conf->subvolume_lock);
 
-                /* one of the node came back up, do a stat update */
-                dht_get_du_info_for_subvol (this, cnt);
+            /* one of the node came back up, do a stat update */
+            dht_get_du_info_for_subvol(this, cnt);
 
-                break;
+            break;
 
         case GF_EVENT_SOME_DESCENDENT_UP:
-                subvol = data;
-                conf->gen++;
-                propagate = 1;
+            subvol = data;
+            conf->gen++;
+            propagate = 1;
 
-                break;
+            break;
 
         case GF_EVENT_SOME_DESCENDENT_DOWN:
-                subvol = data;
-                propagate = 1;
+            subvol = data;
+            propagate = 1;
 
-                break;
+            break;
 
         case GF_EVENT_CHILD_DOWN:
-                subvol = data;
-
-                if (conf->assert_no_child_down) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_CHILD_DOWN,
-                                "Received CHILD_DOWN. Exiting");
-                        if (conf->defrag) {
-                                gf_defrag_stop (conf,
-                                                GF_DEFRAG_STATUS_FAILED, NULL);
-                        } else {
-                                kill (getpid(), SIGTERM);
-                        }
-                }
-
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (subvol == conf->subvolumes[i]) {
-                                cnt = i;
-                                break;
-                        }
-                }
+            subvol = data;
 
-                if (cnt == -1) {
-                        gf_msg_debug (this->name, 0,
-                                      "got GF_EVENT_CHILD_DOWN bad "
-                                      "subvolume %s", subvol->name);
-                        break;
+            if (conf->assert_no_child_down) {
+                gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_CHILD_DOWN,
+                       "Received CHILD_DOWN. Exiting");
+                if (conf->defrag) {
+                    gf_defrag_stop(conf, GF_DEFRAG_STATUS_FAILED, NULL);
+                } else {
+                    kill(getpid(), SIGTERM);
                 }
+            }
 
-                LOCK (&conf->subvolume_lock);
-                {
-                        conf->subvolume_status[cnt] = 0;
-                        conf->last_event[cnt] = event;
-                        conf->subvol_up_time[cnt] = 0;
+            for (i = 0; i < conf->subvolume_cnt; i++) {
+                if (subvol == conf->subvolumes[i]) {
+                    cnt = i;
+                    break;
                 }
-                UNLOCK (&conf->subvolume_lock);
+            }
 
-                for (i = 0; i < conf->subvolume_cnt; i++)
-                        if (conf->last_event[i] != event)
-                                event = GF_EVENT_SOME_DESCENDENT_DOWN;
+            if (cnt == -1) {
+                gf_msg_debug(this->name, 0,
+                             "got GF_EVENT_CHILD_DOWN bad "
+                             "subvolume %s",
+                             subvol->name);
                 break;
+            }
 
-        case GF_EVENT_CHILD_CONNECTING:
-                subvol = data;
+            LOCK(&conf->subvolume_lock);
+            {
+                conf->subvolume_status[cnt] = 0;
+                conf->last_event[cnt] = event;
+                conf->subvol_up_time[cnt] = 0;
+            }
+            UNLOCK(&conf->subvolume_lock);
 
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (subvol == conf->subvolumes[i]) {
-                                cnt = i;
-                                break;
-                        }
-                }
+            for (i = 0; i < conf->subvolume_cnt; i++)
+                if (conf->last_event[i] != event)
+                    event = GF_EVENT_SOME_DESCENDENT_DOWN;
+            break;
 
-                if (cnt == -1) {
-                        gf_msg_debug (this->name, 0,
-                                      "got GF_EVENT_CHILD_CONNECTING"
-                                      " bad subvolume %s",
-                                      subvol->name);
-                        break;
-                }
+        case GF_EVENT_CHILD_CONNECTING:
+            subvol = data;
 
-                LOCK (&conf->subvolume_lock);
-                {
-                        conf->last_event[cnt] = event;
+            for (i = 0; i < conf->subvolume_cnt; i++) {
+                if (subvol == conf->subvolumes[i]) {
+                    cnt = i;
+                    break;
                 }
-                UNLOCK (&conf->subvolume_lock);
+            }
 
+            if (cnt == -1) {
+                gf_msg_debug(this->name, 0,
+                             "got GF_EVENT_CHILD_CONNECTING"
+                             " bad subvolume %s",
+                             subvol->name);
                 break;
-        case GF_EVENT_VOLUME_DEFRAG:
-        {
-                if (!conf->defrag) {
-                        return ret;
-                }
-                defrag = conf->defrag;
+            }
 
-                dict = data;
-                va_start (ap, data);
-                output = va_arg (ap, dict_t*);
+            LOCK(&conf->subvolume_lock);
+            {
+                conf->last_event[cnt] = event;
+            }
+            UNLOCK(&conf->subvolume_lock);
 
-                ret = dict_get_int32 (dict, "rebalance-command",
-                                      (int32_t*)&cmd);
-                if (ret) {
-                        va_end (ap);
-                        return ret;
-                }
-                LOCK (&defrag->lock);
-                {
-                        if (defrag->is_exiting)
-                                goto unlock;
-                        if ((cmd == GF_DEFRAG_CMD_STATUS) ||
-                            (cmd == GF_DEFRAG_CMD_STATUS_TIER) ||
-                            (cmd == GF_DEFRAG_CMD_DETACH_STATUS))
-                                gf_defrag_status_get (conf, output);
-                        else if (cmd == GF_DEFRAG_CMD_START_DETACH_TIER)
-                                gf_defrag_start_detach_tier(defrag);
-                        else if (cmd == GF_DEFRAG_CMD_DETACH_START)
-                                defrag->cmd = GF_DEFRAG_CMD_DETACH_START;
-                        else if (cmd == GF_DEFRAG_CMD_STOP ||
-                                 cmd == GF_DEFRAG_CMD_STOP_DETACH_TIER ||
-                                 cmd == GF_DEFRAG_CMD_DETACH_STOP)
-                                gf_defrag_stop (conf,
-                                                GF_DEFRAG_STATUS_STOPPED, output);
-                        else if (cmd == GF_DEFRAG_CMD_PAUSE_TIER)
-                                ret = gf_defrag_pause_tier (this, defrag);
-                        else if (cmd == GF_DEFRAG_CMD_RESUME_TIER)
-                                ret = gf_defrag_resume_tier (this, defrag);
-                }
-unlock:
-                UNLOCK (&defrag->lock);
-                va_end (ap);
+            break;
+        case GF_EVENT_VOLUME_DEFRAG: {
+            if (!conf->defrag) {
                 return ret;
-                break;
+            }
+            defrag = conf->defrag;
+
+            dict = data;
+            va_start(ap, data);
+            output = va_arg(ap, dict_t *);
+
+            ret = dict_get_int32(dict, "rebalance-command", (int32_t *)&cmd);
+            if (ret) {
+                va_end(ap);
+                return ret;
+            }
+            LOCK(&defrag->lock);
+            {
+                if (defrag->is_exiting)
+                    goto unlock;
+                if ((cmd == GF_DEFRAG_CMD_STATUS) ||
+                    (cmd == GF_DEFRAG_CMD_STATUS_TIER) ||
+                    (cmd == GF_DEFRAG_CMD_DETACH_STATUS))
+                    gf_defrag_status_get(conf, output);
+                else if (cmd == GF_DEFRAG_CMD_START_DETACH_TIER)
+                    gf_defrag_start_detach_tier(defrag);
+                else if (cmd == GF_DEFRAG_CMD_DETACH_START)
+                    defrag->cmd = GF_DEFRAG_CMD_DETACH_START;
+                else if (cmd == GF_DEFRAG_CMD_STOP ||
+                         cmd == GF_DEFRAG_CMD_STOP_DETACH_TIER ||
+                         cmd == GF_DEFRAG_CMD_DETACH_STOP)
+                    gf_defrag_stop(conf, GF_DEFRAG_STATUS_STOPPED, output);
+                else if (cmd == GF_DEFRAG_CMD_PAUSE_TIER)
+                    ret = gf_defrag_pause_tier(this, defrag);
+                else if (cmd == GF_DEFRAG_CMD_RESUME_TIER)
+                    ret = gf_defrag_resume_tier(this, defrag);
+            }
+        unlock:
+            UNLOCK(&defrag->lock);
+            va_end(ap);
+            return ret;
+            break;
         }
         case GF_EVENT_UPCALL:
-                up_data = (struct gf_upcall *)data;
-                if (up_data->event_type != GF_UPCALL_CACHE_INVALIDATION)
-                        break;
-                up_ci = (struct gf_upcall_cache_invalidation *)up_data->data;
-
-                /* Since md-cache will be aggressively filtering lookups,
-                 * the stale layout issue will be more pronounced. Hence
-                 * when a layout xattr is changed by the rebalance process
-                 * notify all the md-cache clients to invalidate the existing
-                 * stat cache and send the lookup next time*/
-                if (up_ci->dict && dict_get (up_ci->dict, conf->xattr_name))
-                        up_ci->flags |= UP_EXPLICIT_LOOKUP;
-
-                /* TODO: Instead of invalidating iatt, update the new
-                 * hashed/cached subvolume in dht inode_ctx */
-                if (IS_DHT_LINKFILE_MODE (&up_ci->stat))
-                        up_ci->flags |= UP_EXPLICIT_LOOKUP;
-
-                propagate = 1;
+            up_data = (struct gf_upcall *)data;
+            if (up_data->event_type != GF_UPCALL_CACHE_INVALIDATION)
                 break;
+            up_ci = (struct gf_upcall_cache_invalidation *)up_data->data;
+
+            /* Since md-cache will be aggressively filtering lookups,
+             * the stale layout issue will be more pronounced. Hence
+             * when a layout xattr is changed by the rebalance process
+             * notify all the md-cache clients to invalidate the existing
+             * stat cache and send the lookup next time*/
+            if (up_ci->dict && dict_get(up_ci->dict, conf->xattr_name))
+                up_ci->flags |= UP_EXPLICIT_LOOKUP;
+
+            /* TODO: Instead of invalidating iatt, update the new
+             * hashed/cached subvolume in dht inode_ctx */
+            if (IS_DHT_LINKFILE_MODE(&up_ci->stat))
+                up_ci->flags |= UP_EXPLICIT_LOOKUP;
+
+            propagate = 1;
+            break;
         default:
-                propagate = 1;
-                break;
-        }
-
+            propagate = 1;
+            break;
+    }
+
+    /* have all subvolumes reported status once by now? */
+    have_heard_from_all = 1;
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (!conf->last_event[i])
+            have_heard_from_all = 0;
+    }
+
+    /* if all subvols have reported status, no need to hide anything
+       or wait for anything else. Just propagate blindly */
+    if (have_heard_from_all) {
+        propagate = 1;
+    }
+
+    if (!had_heard_from_all && have_heard_from_all) {
+        /* This is the first event which completes aggregation
+           of events from all subvolumes. If at least one subvol
+           had come up, propagate CHILD_UP, but only this time
+        */
+        event = GF_EVENT_CHILD_DOWN;
 
-        /* have all subvolumes reported status once by now? */
-        have_heard_from_all = 1;
         for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (!conf->last_event[i])
-                        have_heard_from_all = 0;
-        }
-
-        /* if all subvols have reported status, no need to hide anything
-           or wait for anything else. Just propagate blindly */
-        if (have_heard_from_all) {
-                propagate = 1;
+            if (conf->last_event[i] == GF_EVENT_CHILD_UP) {
+                event = GF_EVENT_CHILD_UP;
+                break;
+            }
 
+            if (conf->last_event[i] == GF_EVENT_CHILD_CONNECTING) {
+                event = GF_EVENT_CHILD_CONNECTING;
+                /* continue to check other events for CHILD_UP */
+            }
         }
 
-
-        if (!had_heard_from_all && have_heard_from_all) {
-                /* This is the first event which completes aggregation
-                   of events from all subvolumes. If at least one subvol
-                   had come up, propagate CHILD_UP, but only this time
-                */
-                event = GF_EVENT_CHILD_DOWN;
-
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (conf->last_event[i] == GF_EVENT_CHILD_UP) {
-                                event = GF_EVENT_CHILD_UP;
-                                break;
-                        }
-
-                        if (conf->last_event[i] == GF_EVENT_CHILD_CONNECTING) {
-                                event = GF_EVENT_CHILD_CONNECTING;
-                                /* continue to check other events for CHILD_UP */
-                        }
-                }
-
-                /* Rebalance is started with assert_no_child_down. So we do
-                 * not need to handle CHILD_DOWN event here.
-                 *
-                 * If there is a graph switch, we should not restart the
-                 * rebalance daemon. Use 'run_defrag' to indicate if the
-                 * thread has already started.
-                 */
-                 if (conf->defrag && !run_defrag) {
-                        if (methods->migration_needed(this)) {
-                                run_defrag = 1;
-                                ret = gf_thread_create(&conf->defrag->th,
-                                                       NULL,
-                                                       gf_defrag_start, this,
-                                                       "dhtdg");
-                                if (ret) {
-                                        GF_FREE (conf->defrag);
-                                        conf->defrag = NULL;
-                                        kill (getpid(), SIGTERM);
-                                }
-                        }
+        /* Rebalance is started with assert_no_child_down. So we do
+         * not need to handle CHILD_DOWN event here.
+         *
+         * If there is a graph switch, we should not restart the
+         * rebalance daemon. Use 'run_defrag' to indicate if the
+         * thread has already started.
+         */
+        if (conf->defrag && !run_defrag) {
+            if (methods->migration_needed(this)) {
+                run_defrag = 1;
+                ret = gf_thread_create(&conf->defrag->th, NULL, gf_defrag_start,
+                                       this, "dhtdg");
+                if (ret) {
+                    GF_FREE(conf->defrag);
+                    conf->defrag = NULL;
+                    kill(getpid(), SIGTERM);
                 }
+            }
         }
+    }
 
-        ret = 0;
-        if (propagate)
-                ret = default_notify (this, event, data);
+    ret = 0;
+    if (propagate)
+        ret = default_notify(this, event, data);
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_inode_ctx_layout_get (inode_t *inode, xlator_t *this, dht_layout_t **layout)
+dht_inode_ctx_layout_get(inode_t *inode, xlator_t *this, dht_layout_t **layout)
 {
-        dht_inode_ctx_t         *ctx            = NULL;
-        int                      ret            = -1;
+    dht_inode_ctx_t *ctx = NULL;
+    int ret = -1;
 
-        ret = dht_inode_ctx_get (inode, this, &ctx);
+    ret = dht_inode_ctx_get(inode, this, &ctx);
 
-        if (!ret && ctx) {
-                if (ctx->layout) {
-                        if (layout)
-                                *layout = ctx->layout;
-                        ret = 0;
-                } else {
-                        ret = -1;
-                }
+    if (!ret && ctx) {
+        if (ctx->layout) {
+            if (layout)
+                *layout = ctx->layout;
+            ret = 0;
+        } else {
+            ret = -1;
         }
+    }
 
-        return ret;
+    return ret;
 }
 
 void
-dht_log_new_layout_for_dir_selfheal (xlator_t *this, loc_t *loc,
-                                 dht_layout_t *layout)
-{
+dht_log_new_layout_for_dir_selfheal(xlator_t *this, loc_t *loc,
+                                    dht_layout_t *layout)
+{
+    char string[2048] = {0};
+    char *output_string = NULL;
+    int len = 0;
+    int off = 0;
+    int i = 0;
+    gf_loglevel_t log_level = gf_log_get_loglevel();
+    int ret = 0;
+
+    if (log_level < GF_LOG_INFO)
+        return;
 
-        char                    string[2048] = {0};
-        char                  *output_string = NULL;
-        int                              len = 0;
-        int                              off = 0;
-        int                                i = 0;
-        gf_loglevel_t             log_level = gf_log_get_loglevel();
-        int                              ret = 0;
+    if (!layout)
+        return;
 
-        if (log_level < GF_LOG_INFO)
-                return;
+    if (!layout->cnt)
+        return;
 
-        if (!layout)
-                return;
+    if (!loc)
+        return;
 
-        if (!layout->cnt)
-                return;
+    if (!loc->path)
+        return;
 
-        if (!loc)
-                return;
+    ret = snprintf(string, sizeof(string), "Setting layout of %s with ",
+                   loc->path);
 
-        if (!loc->path)
-                return;
+    if (ret < 0)
+        return;
 
-        ret = snprintf (string, sizeof (string), "Setting layout of %s with ",
-                        loc->path);
+    len += ret;
+
+    /* Calculation  of total length of the string required to calloc
+     * output_string. Log includes subvolume-name, start-range, end-range and
+     * err value.
+     *
+     * This log will help to debug cases where:
+     * a) Different processes set different layout of a directory.
+     * b) Error captured in lookup, which will be filled in layout->err
+     * (like ENOENT, ESTALE etc)
+     */
+
+    for (i = 0; i < layout->cnt; i++) {
+        ret = snprintf(string, sizeof(string),
+                       "[Subvol_name: %s, Err: %d , Start: "
+                       "%" PRIu32 " , Stop: %" PRIu32 " , Hash: %" PRIu32
+                       " ], ",
+                       layout->list[i].xlator->name, layout->list[i].err,
+                       layout->list[i].start, layout->list[i].stop,
+                       layout->list[i].commit_hash);
 
         if (ret < 0)
-                return;
+            return;
 
         len += ret;
+    }
 
-       /* Calculation  of total length of the string required to calloc
-        * output_string. Log includes subvolume-name, start-range, end-range and
-        * err value.
-        *
-        * This log will help to debug cases where:
-        * a) Different processes set different layout of a directory.
-        * b) Error captured in lookup, which will be filled in layout->err
-        * (like ENOENT, ESTALE etc)
-        */
-
-        for (i = 0; i < layout->cnt; i++) {
+    len++;
 
-                ret  = snprintf (string, sizeof (string),
-                                 "[Subvol_name: %s, Err: %d , Start: "
-                                 "%"PRIu32 " , Stop: %"PRIu32 " , Hash: %"
-                                 PRIu32 " ], ",
-                                 layout->list[i].xlator->name,
-                                 layout->list[i].err, layout->list[i].start,
-                                 layout->list[i].stop,
-                                 layout->list[i].commit_hash);
+    output_string = GF_MALLOC(len + 1, gf_common_mt_char);
 
-                if (ret < 0)
-                        return;
-
-                len += ret;
-
-        }
+    if (!output_string)
+        return;
 
-        len++;
+    ret = snprintf(output_string, len + 1, "Setting layout of %s with ",
+                   loc->path);
 
-        output_string = GF_MALLOC (len + 1, gf_common_mt_char);
+    if (ret < 0)
+        goto err;
 
-        if (!output_string)
-                return;
+    off += ret;
 
-        ret = snprintf (output_string, len + 1, "Setting layout of %s with ",
-                        loc->path);
+    for (i = 0; i < layout->cnt; i++) {
+        ret = snprintf(output_string + off, len - off,
+                       "[Subvol_name: %s, Err: %d , Start: "
+                       "%" PRIu32 " , Stop: %" PRIu32 " , Hash: %" PRIu32
+                       " ], ",
+                       layout->list[i].xlator->name, layout->list[i].err,
+                       layout->list[i].start, layout->list[i].stop,
+                       layout->list[i].commit_hash);
 
         if (ret < 0)
-                goto err;
+            goto err;
 
         off += ret;
+    }
 
-
-        for (i = 0; i < layout->cnt; i++) {
-
-                ret  =  snprintf (output_string + off, len - off,
-                                  "[Subvol_name: %s, Err: %d , Start: "
-                                  "%"PRIu32 " , Stop: %"PRIu32 " , Hash: %"
-                                  PRIu32  " ], ",
-                                  layout->list[i].xlator->name,
-                                  layout->list[i].err, layout->list[i].start,
-                                  layout->list[i].stop,
-                                  layout->list[i].commit_hash);
-
-                if (ret < 0)
-                        goto err;
-
-                off += ret;
-
-        }
-
-        gf_msg (this->name, GF_LOG_DEBUG, 0, DHT_MSG_LOG_FIXED_LAYOUT,
-                "%s", output_string);
+    gf_msg(this->name, GF_LOG_DEBUG, 0, DHT_MSG_LOG_FIXED_LAYOUT, "%s",
+           output_string);
 
 err:
-        GF_FREE (output_string);
+    GF_FREE(output_string);
 }
 
-int32_t dht_migration_get_dst_subvol(xlator_t *this, dht_local_t  *local)
+int32_t
+dht_migration_get_dst_subvol(xlator_t *this, dht_local_t *local)
 {
-        int ret = -1;
+    int ret = -1;
 
-        if (!local)
-                goto out;
+    if (!local)
+        goto out;
 
-        local->rebalance.target_node =
-                dht_subvol_get_hashed (this, &local->loc);
+    local->rebalance.target_node = dht_subvol_get_hashed(this, &local->loc);
 
-        if (local->rebalance.target_node)
-                ret = 0;
+    if (local->rebalance.target_node)
+        ret = 0;
 
 out:
-        return ret;
+    return ret;
 }
 
-int32_t dht_migration_needed(xlator_t *this)
+int32_t
+dht_migration_needed(xlator_t *this)
 {
-        gf_defrag_info_t        *defrag = NULL;
-        dht_conf_t              *conf   = NULL;
-        int                      ret = 0;
+    gf_defrag_info_t *defrag = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = 0;
 
-        conf = this->private;
+    conf = this->private;
 
-        GF_VALIDATE_OR_GOTO ("dht", conf, out);
-        GF_VALIDATE_OR_GOTO ("dht", conf->defrag, out);
+    GF_VALIDATE_OR_GOTO("dht", conf, out);
+    GF_VALIDATE_OR_GOTO("dht", conf->defrag, out);
 
-        defrag = conf->defrag;
+    defrag = conf->defrag;
 
-        if ((defrag->cmd != GF_DEFRAG_CMD_START_TIER) &&
-            (defrag->cmd != GF_DEFRAG_CMD_START_DETACH_TIER))
-                ret = 1;
+    if ((defrag->cmd != GF_DEFRAG_CMD_START_TIER) &&
+        (defrag->cmd != GF_DEFRAG_CMD_START_DETACH_TIER))
+        ret = 1;
 
 out:
-        return ret;
+    return ret;
 }
 
-
-
 /*
 This function should not be called more then once during a FOP
 handling path. It is valid only for for ops on files
 */
-int32_t dht_set_local_rebalance (xlator_t *this, dht_local_t *local,
-                                 struct iatt *stbuf,
-                                 struct iatt *prebuf, struct iatt *postbuf,
-                                 dict_t *xdata)
+int32_t
+dht_set_local_rebalance(xlator_t *this, dht_local_t *local, struct iatt *stbuf,
+                        struct iatt *prebuf, struct iatt *postbuf,
+                        dict_t *xdata)
 {
+    if (!local)
+        return -1;
 
-        if (!local)
-                return -1;
-
-        if (local->rebalance.set) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_REBAL_STRUCT_SET,
-                        "local->rebalance already set");
-        }
-
+    if (local->rebalance.set) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_REBAL_STRUCT_SET,
+               "local->rebalance already set");
+    }
 
-        if (stbuf)
-                memcpy (&local->rebalance.stbuf, stbuf, sizeof (struct iatt));
+    if (stbuf)
+        memcpy(&local->rebalance.stbuf, stbuf, sizeof(struct iatt));
 
-        if (prebuf)
-                memcpy (&local->rebalance.prebuf, prebuf, sizeof (struct iatt));
+    if (prebuf)
+        memcpy(&local->rebalance.prebuf, prebuf, sizeof(struct iatt));
 
-        if (postbuf)
-                memcpy (&local->rebalance.postbuf, postbuf,
-                        sizeof (struct iatt));
+    if (postbuf)
+        memcpy(&local->rebalance.postbuf, postbuf, sizeof(struct iatt));
 
-        if (xdata)
-                local->rebalance.xdata = dict_ref (xdata);
+    if (xdata)
+        local->rebalance.xdata = dict_ref(xdata);
 
-        local->rebalance.set = 1;
+    local->rebalance.set = 1;
 
-        return 0;
+    return 0;
 }
 
 gf_boolean_t
-dht_is_tier_xlator (xlator_t *this)
+dht_is_tier_xlator(xlator_t *this)
 {
-
-        if (strcmp (this->type, "cluster/tier") == 0)
-                return _gf_true;
-        return _gf_false;
+    if (strcmp(this->type, "cluster/tier") == 0)
+        return _gf_true;
+    return _gf_false;
 }
 
 int32_t
-dht_release (xlator_t *this, fd_t *fd)
+dht_release(xlator_t *this, fd_t *fd)
 {
-        return dht_fd_ctx_destroy (this, fd);
+    return dht_fd_ctx_destroy(this, fd);
 }
 
 int
-dht_remove_stale_linkto (void *data)
+dht_remove_stale_linkto(void *data)
 {
-        call_frame_t    *frame = NULL;
-        dht_local_t     *local = NULL;
-        xlator_t        *this  = NULL;
-        dict_t          *xdata_in = NULL;
-        int             ret = 0;
+    call_frame_t *frame = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    dict_t *xdata_in = NULL;
+    int ret = 0;
 
-        GF_VALIDATE_OR_GOTO ("dht", data, out);
+    GF_VALIDATE_OR_GOTO("dht", data, out);
 
-        frame = data;
-        local = frame->local;
-        this = frame->this;
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", local, out);
-        GF_VALIDATE_OR_GOTO ("dht", local->link_subvol, out);
+    frame = data;
+    local = frame->local;
+    this = frame->this;
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", local, out);
+    GF_VALIDATE_OR_GOTO("dht", local->link_subvol, out);
 
-        xdata_in = dict_new ();
-        if (!xdata_in)
-                goto out;
-
-        ret = dht_fill_dict_to_avoid_unlink_of_migrating_file (xdata_in);
-        if (ret) {
-                  gf_msg (this->name, GF_LOG_WARNING, -ret, 0,
-                                "Failed to set keys for stale linkto"
-                                "deletion on path %s", local->loc.path);
-                  goto out;
-        }
-
-        ret = syncop_unlink (local->link_subvol, &local->loc, xdata_in, NULL);
-        if (ret) {
-                  gf_msg (this->name, GF_LOG_WARNING, -ret, 0,
-                                "Removal of linkto failed"
-                                " on path %s at subvol %s",
-                                local->loc.path, local->link_subvol->name);
+    xdata_in = dict_new();
+    if (!xdata_in)
+        goto out;
 
-        }
+    ret = dht_fill_dict_to_avoid_unlink_of_migrating_file(xdata_in);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, 0,
+               "Failed to set keys for stale linkto"
+               "deletion on path %s",
+               local->loc.path);
+        goto out;
+    }
+
+    ret = syncop_unlink(local->link_subvol, &local->loc, xdata_in, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, 0,
+               "Removal of linkto failed"
+               " on path %s at subvol %s",
+               local->loc.path, local->link_subvol->name);
+    }
 out:
-        if (xdata_in)
-                dict_unref (xdata_in);
-        return ret;
+    if (xdata_in)
+        dict_unref(xdata_in);
+    return ret;
 }
 
 int
-dht_remove_stale_linkto_cbk (int ret, call_frame_t *sync_frame, void *data)
+dht_remove_stale_linkto_cbk(int ret, call_frame_t *sync_frame, void *data)
 {
-        DHT_STACK_DESTROY (sync_frame);
-        return 0;
+    DHT_STACK_DESTROY(sync_frame);
+    return 0;
 }
diff --git a/xlators/cluster/dht/src/dht-diskusage.c b/xlators/cluster/dht/src/dht-diskusage.c
index f109615e52c..13eaabae1c1 100644
--- a/xlators/cluster/dht/src/dht-diskusage.c
+++ b/xlators/cluster/dht/src/dht-diskusage.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 /* TODO: add NS locking */
 
 #include "glusterfs.h"
@@ -20,493 +19,477 @@
 #include <sys/time.h>
 #include "events.h"
 
-
 int
-dht_du_info_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-		 int op_ret, int op_errno, struct statvfs *statvfs,
-                 dict_t *xdata)
+dht_du_info_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, struct statvfs *statvfs, dict_t *xdata)
 {
-	dht_conf_t    *conf         = NULL;
-	xlator_t      *prev          = NULL;
-	int            this_call_cnt = 0;
-	int            i = 0;
-	double         percent = 0;
-	double         percent_inodes = 0;
-	uint64_t       bytes = 0;
-        uint32_t       bpc;     /* blocks per chunk */
-        uint32_t       chunks   = 0;
-
-	conf = this->private;
-	prev = cookie;
-
-	if (op_ret == -1 || !statvfs) {
-		gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_GET_DISK_INFO_ERROR,
-			"failed to get disk info from %s", prev->name);
-		goto out;
-	}
-
-	if (statvfs->f_blocks) {
-		percent = (statvfs->f_bavail * 100) / statvfs->f_blocks;
-		bytes = (statvfs->f_bavail * statvfs->f_frsize);
-                /*
-                 * A 32-bit count of 1MB chunks allows a maximum brick size of
-                 * ~4PB.  It's possible that we could see a single local FS
-                 * bigger than that some day, but this code is likely to be
-                 * irrelevant by then.  Meanwhile, it's more important to keep
-                 * the chunk size small so the layout-calculation code that
-                 * uses this value can be tested on normal machines.
-                 */
-                bpc = (1 << 20) / statvfs->f_bsize;
-                chunks = (statvfs->f_blocks + bpc - 1) / bpc;
-	}
-
-	if (statvfs->f_files) {
-		percent_inodes = (statvfs->f_ffree * 100) / statvfs->f_files;
-	} else {
-                /*
-                 * Set percent inodes to 100 for dynamically allocated inode
-                 * filesystems. The rationale is that distribute need not
-                 * worry about total inodes; rather, let the 'create()' be
-                 * scheduled on the hashed subvol regardless of the total
-                 * inodes.
-		 */
-		percent_inodes = 100;
-	}
-
-	LOCK (&conf->subvolume_lock);
-	{
-		for (i = 0; i < conf->subvolume_cnt; i++)
-			if (prev == conf->subvolumes[i]) {
-				conf->du_stats[i].avail_percent = percent;
-				conf->du_stats[i].avail_space   = bytes;
-				conf->du_stats[i].avail_inodes  = percent_inodes;
-                                conf->du_stats[i].chunks        = chunks;
-                                conf->du_stats[i].total_blocks  = statvfs->f_blocks;
-                                conf->du_stats[i].avail_blocks  = statvfs->f_bavail;
-                                conf->du_stats[i].frsize        = statvfs->f_frsize;
-
-                                gf_msg_debug (this->name, 0,
-				              "subvolume '%s': avail_percent "
-					      "is: %.2f and avail_space "
-                                              "is: %" PRIu64" and avail_inodes"
-                                              " is: %.2f",
-					      prev->name,
-					      conf->du_stats[i].avail_percent,
-					      conf->du_stats[i].avail_space,
-					      conf->du_stats[i].avail_inodes);
-                                break;  /* no point in looping further */
-			}
-	}
-	UNLOCK (&conf->subvolume_lock);
+    dht_conf_t *conf = NULL;
+    xlator_t *prev = NULL;
+    int this_call_cnt = 0;
+    int i = 0;
+    double percent = 0;
+    double percent_inodes = 0;
+    uint64_t bytes = 0;
+    uint32_t bpc; /* blocks per chunk */
+    uint32_t chunks = 0;
+
+    conf = this->private;
+    prev = cookie;
+
+    if (op_ret == -1 || !statvfs) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno,
+               DHT_MSG_GET_DISK_INFO_ERROR, "failed to get disk info from %s",
+               prev->name);
+        goto out;
+    }
+
+    if (statvfs->f_blocks) {
+        percent = (statvfs->f_bavail * 100) / statvfs->f_blocks;
+        bytes = (statvfs->f_bavail * statvfs->f_frsize);
+        /*
+         * A 32-bit count of 1MB chunks allows a maximum brick size of
+         * ~4PB.  It's possible that we could see a single local FS
+         * bigger than that some day, but this code is likely to be
+         * irrelevant by then.  Meanwhile, it's more important to keep
+         * the chunk size small so the layout-calculation code that
+         * uses this value can be tested on normal machines.
+         */
+        bpc = (1 << 20) / statvfs->f_bsize;
+        chunks = (statvfs->f_blocks + bpc - 1) / bpc;
+    }
+
+    if (statvfs->f_files) {
+        percent_inodes = (statvfs->f_ffree * 100) / statvfs->f_files;
+    } else {
+        /*
+         * Set percent inodes to 100 for dynamically allocated inode
+         * filesystems. The rationale is that distribute need not
+         * worry about total inodes; rather, let the 'create()' be
+         * scheduled on the hashed subvol regardless of the total
+         * inodes.
+         */
+        percent_inodes = 100;
+    }
+
+    LOCK(&conf->subvolume_lock);
+    {
+        for (i = 0; i < conf->subvolume_cnt; i++)
+            if (prev == conf->subvolumes[i]) {
+                conf->du_stats[i].avail_percent = percent;
+                conf->du_stats[i].avail_space = bytes;
+                conf->du_stats[i].avail_inodes = percent_inodes;
+                conf->du_stats[i].chunks = chunks;
+                conf->du_stats[i].total_blocks = statvfs->f_blocks;
+                conf->du_stats[i].avail_blocks = statvfs->f_bavail;
+                conf->du_stats[i].frsize = statvfs->f_frsize;
+
+                gf_msg_debug(this->name, 0,
+                             "subvolume '%s': avail_percent "
+                             "is: %.2f and avail_space "
+                             "is: %" PRIu64
+                             " and avail_inodes"
+                             " is: %.2f",
+                             prev->name, conf->du_stats[i].avail_percent,
+                             conf->du_stats[i].avail_space,
+                             conf->du_stats[i].avail_inodes);
+                break; /* no point in looping further */
+            }
+    }
+    UNLOCK(&conf->subvolume_lock);
 
 out:
-	this_call_cnt = dht_frame_return (frame);
-	if (is_last_call (this_call_cnt))
-		DHT_STACK_DESTROY (frame);
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt))
+        DHT_STACK_DESTROY(frame);
 
-	return 0;
+    return 0;
 }
 
 int
-dht_get_du_info_for_subvol (xlator_t *this, int subvol_idx)
+dht_get_du_info_for_subvol(xlator_t *this, int subvol_idx)
 {
-	dht_conf_t    *conf         = NULL;
-	call_frame_t  *statfs_frame = NULL;
-	dht_local_t   *statfs_local = NULL;
-	call_pool_t   *pool         = NULL;
-	loc_t          tmp_loc      = {0,};
-
-	conf = this->private;
-	pool = this->ctx->pool;
-
-	statfs_frame = create_frame (this, pool);
-	if (!statfs_frame) {
-		goto err;
-	}
-
-	/* local->fop value is not used in this case */
-	statfs_local = dht_local_init (statfs_frame, NULL, NULL,
-				       GF_FOP_MAXVALUE);
-	if (!statfs_local) {
-		goto err;
-	}
-
-        /* make it root gfid, should be enough to get the proper info back */
-        tmp_loc.gfid[15] = 1;
-
-	statfs_local->call_cnt = 1;
-	STACK_WIND_COOKIE (statfs_frame, dht_du_info_cbk,
-		           conf->subvolumes[subvol_idx],
-                           conf->subvolumes[subvol_idx],
-		           conf->subvolumes[subvol_idx]->fops->statfs,
-		           &tmp_loc, NULL);
-
-	return 0;
+    dht_conf_t *conf = NULL;
+    call_frame_t *statfs_frame = NULL;
+    dht_local_t *statfs_local = NULL;
+    call_pool_t *pool = NULL;
+    loc_t tmp_loc = {
+        0,
+    };
+
+    conf = this->private;
+    pool = this->ctx->pool;
+
+    statfs_frame = create_frame(this, pool);
+    if (!statfs_frame) {
+        goto err;
+    }
+
+    /* local->fop value is not used in this case */
+    statfs_local = dht_local_init(statfs_frame, NULL, NULL, GF_FOP_MAXVALUE);
+    if (!statfs_local) {
+        goto err;
+    }
+
+    /* make it root gfid, should be enough to get the proper info back */
+    tmp_loc.gfid[15] = 1;
+
+    statfs_local->call_cnt = 1;
+    STACK_WIND_COOKIE(
+        statfs_frame, dht_du_info_cbk, conf->subvolumes[subvol_idx],
+        conf->subvolumes[subvol_idx],
+        conf->subvolumes[subvol_idx]->fops->statfs, &tmp_loc, NULL);
+
+    return 0;
 err:
-	if (statfs_frame)
-		DHT_STACK_DESTROY (statfs_frame);
+    if (statfs_frame)
+        DHT_STACK_DESTROY(statfs_frame);
 
-	return -1;
+    return -1;
 }
 
 int
-dht_get_du_info (call_frame_t *frame, xlator_t *this, loc_t *loc)
+dht_get_du_info(call_frame_t *frame, xlator_t *this, loc_t *loc)
 {
-	int            i            = 0;
-        int            ret          = -1;
-	dht_conf_t    *conf         = NULL;
-	call_frame_t  *statfs_frame = NULL;
-	dht_local_t   *statfs_local = NULL;
-	struct timeval tv           = {0,};
-        loc_t          tmp_loc      = {0,};
-
-	conf  = this->private;
-
-	gettimeofday (&tv, NULL);
-
-        /* make it root gfid, should be enough to get the proper
-           info back */
-        tmp_loc.gfid[15] = 1;
-
-	if (tv.tv_sec > (conf->refresh_interval
-			 + conf->last_stat_fetch.tv_sec)) {
-
-		statfs_frame = copy_frame (frame);
-		if (!statfs_frame) {
-			goto err;
-		}
-
-		/* In this case, 'local->fop' is not used */
-		statfs_local = dht_local_init (statfs_frame, loc, NULL,
-					       GF_FOP_MAXVALUE);
-		if (!statfs_local) {
-			goto err;
-		}
-
-                statfs_local->params = dict_new ();
-                if (!statfs_local->params)
-                        goto err;
-
-                ret = dict_set_int8 (statfs_local->params,
-                                     GF_INTERNAL_IGNORE_DEEM_STATFS, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set "
-                                GF_INTERNAL_IGNORE_DEEM_STATFS" in dict");
-                        goto err;
-                }
+    int i = 0;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+    call_frame_t *statfs_frame = NULL;
+    dht_local_t *statfs_local = NULL;
+    struct timeval tv = {
+        0,
+    };
+    loc_t tmp_loc = {
+        0,
+    };
+
+    conf = this->private;
+
+    gettimeofday(&tv, NULL);
+
+    /* make it root gfid, should be enough to get the proper
+       info back */
+    tmp_loc.gfid[15] = 1;
+
+    if (tv.tv_sec > (conf->refresh_interval + conf->last_stat_fetch.tv_sec)) {
+        statfs_frame = copy_frame(frame);
+        if (!statfs_frame) {
+            goto err;
+        }
+
+        /* In this case, 'local->fop' is not used */
+        statfs_local = dht_local_init(statfs_frame, loc, NULL, GF_FOP_MAXVALUE);
+        if (!statfs_local) {
+            goto err;
+        }
+
+        statfs_local->params = dict_new();
+        if (!statfs_local->params)
+            goto err;
+
+        ret = dict_set_int8(statfs_local->params,
+                            GF_INTERNAL_IGNORE_DEEM_STATFS, 1);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set " GF_INTERNAL_IGNORE_DEEM_STATFS " in dict");
+            goto err;
+        }
+
+        statfs_local->call_cnt = conf->subvolume_cnt;
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            STACK_WIND_COOKIE(statfs_frame, dht_du_info_cbk,
+                              conf->subvolumes[i], conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->statfs, &tmp_loc,
+                              statfs_local->params);
+        }
 
-		statfs_local->call_cnt = conf->subvolume_cnt;
-		for (i = 0; i < conf->subvolume_cnt; i++) {
-			STACK_WIND_COOKIE (statfs_frame, dht_du_info_cbk,
-				           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-				           conf->subvolumes[i]->fops->statfs,
-				           &tmp_loc, statfs_local->params);
-		}
-
-		conf->last_stat_fetch.tv_sec = tv.tv_sec;
-	}
-	return 0;
+        conf->last_stat_fetch.tv_sec = tv.tv_sec;
+    }
+    return 0;
 err:
-	if (statfs_frame)
-		DHT_STACK_DESTROY (statfs_frame);
+    if (statfs_frame)
+        DHT_STACK_DESTROY(statfs_frame);
 
-	return -1;
+    return -1;
 }
 
-
 gf_boolean_t
-dht_is_subvol_filled (xlator_t *this, xlator_t *subvol)
+dht_is_subvol_filled(xlator_t *this, xlator_t *subvol)
 {
-	int         i = 0;
-        char      vol_name[256];
-	dht_conf_t *conf = NULL;
-	gf_boolean_t subvol_filled_inodes = _gf_false;
-	gf_boolean_t subvol_filled_space = _gf_false;
-	gf_boolean_t is_subvol_filled = _gf_false;
-        double usage = 0;
-
-	conf = this->private;
-
-	/* Check for values above specified percent or free disk */
-	LOCK (&conf->subvolume_lock);
-	{
-		for (i = 0; i < conf->subvolume_cnt; i++) {
-			if (subvol == conf->subvolumes[i]) {
-				if (conf->disk_unit == 'p') {
-					if (conf->du_stats[i].avail_percent <
-					    conf->min_free_disk) {
-						subvol_filled_space = _gf_true;
-						break;
-					}
-
-				} else {
-					if (conf->du_stats[i].avail_space <
-					    conf->min_free_disk) {
-						subvol_filled_space = _gf_true;
-						break;
-					}
-				}
-				if (conf->du_stats[i].avail_inodes <
-				    conf->min_free_inodes) {
-					subvol_filled_inodes = _gf_true;
-					break;
-				}
-			}
-		}
-	}
-	UNLOCK (&conf->subvolume_lock);
-
-	if (subvol_filled_space && conf->subvolume_status[i]) {
-		if (!(conf->du_stats[i].log++ % (GF_UNIVERSAL_ANSWER * 10))) {
-                        usage = 100 - conf->du_stats[i].avail_percent;
-
-			gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_SUBVOL_INSUFF_SPACE,
-				"disk space on subvolume '%s' is getting "
-				"full (%.2f %%), consider adding more bricks",
-				subvol->name, usage);
-
-                        strncpy(vol_name, this->name, sizeof(vol_name));
-                        vol_name[(strlen(this->name)-4)] = '\0';
-
-                        gf_event(EVENT_DHT_DISK_USAGE,
-                                 "volume=%s;subvol=%s;usage=%.2f %%",
-                                 vol_name, subvol->name, usage);
-		}
-	}
-
-	if (subvol_filled_inodes && conf->subvolume_status[i]) {
-		if (!(conf->du_stats[i].log++ % (GF_UNIVERSAL_ANSWER * 10))) {
-                        usage = 100 - conf->du_stats[i].avail_inodes;
-			gf_msg (this->name, GF_LOG_CRITICAL, 0,
-                                DHT_MSG_SUBVOL_INSUFF_INODES,
-				"inodes on subvolume '%s' are at "
-				"(%.2f %%), consider adding more bricks",
-				subvol->name, usage);
-
-                        strncpy(vol_name, this->name, sizeof(vol_name));
-                        vol_name[(strlen(this->name)-4)] = '\0';
-
-                        gf_event(EVENT_DHT_INODES_USAGE,
-                                 "volume=%s;subvol=%s;usage=%.2f %%",
-                                  vol_name, subvol->name, usage);
-		}
-	}
-
-	is_subvol_filled = (subvol_filled_space || subvol_filled_inodes);
-
-	return is_subvol_filled;
-}
+    int i = 0;
+    char vol_name[256];
+    dht_conf_t *conf = NULL;
+    gf_boolean_t subvol_filled_inodes = _gf_false;
+    gf_boolean_t subvol_filled_space = _gf_false;
+    gf_boolean_t is_subvol_filled = _gf_false;
+    double usage = 0;
+
+    conf = this->private;
+
+    /* Check for values above specified percent or free disk */
+    LOCK(&conf->subvolume_lock);
+    {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (subvol == conf->subvolumes[i]) {
+                if (conf->disk_unit == 'p') {
+                    if (conf->du_stats[i].avail_percent < conf->min_free_disk) {
+                        subvol_filled_space = _gf_true;
+                        break;
+                    }
+
+                } else {
+                    if (conf->du_stats[i].avail_space < conf->min_free_disk) {
+                        subvol_filled_space = _gf_true;
+                        break;
+                    }
+                }
+                if (conf->du_stats[i].avail_inodes < conf->min_free_inodes) {
+                    subvol_filled_inodes = _gf_true;
+                    break;
+                }
+            }
+        }
+    }
+    UNLOCK(&conf->subvolume_lock);
 
+    if (subvol_filled_space && conf->subvolume_status[i]) {
+        if (!(conf->du_stats[i].log++ % (GF_UNIVERSAL_ANSWER * 10))) {
+            usage = 100 - conf->du_stats[i].avail_percent;
 
-/*Get the best subvolume to create the file in*/
-xlator_t *
-dht_free_disk_available_subvol (xlator_t *this, xlator_t *subvol,
-                                dht_local_t *local)
-{
-	xlator_t   *avail_subvol = NULL;
-	dht_conf_t *conf = NULL;
-        dht_layout_t *layout = NULL;
-        loc_t      *loc = NULL;
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_SUBVOL_INSUFF_SPACE,
+                   "disk space on subvolume '%s' is getting "
+                   "full (%.2f %%), consider adding more bricks",
+                   subvol->name, usage);
 
-	conf = this->private;
-        if (!local)
-                goto out;
-        loc = &local->loc;
-        if (!local->layout) {
-                layout = dht_layout_get (this, loc->parent);
-
-                if (!layout) {
-                        gf_msg_debug (this->name, 0,
-                                      "Missing layout. path=%s,"
-                                      " parent gfid = %s", loc->path,
-                                      uuid_utoa (loc->parent->gfid));
-                        goto out;
-                }
-        } else {
-                layout = dht_layout_ref (this, local->layout);
-        }
+            strncpy(vol_name, this->name, sizeof(vol_name));
+            vol_name[(strlen(this->name) - 4)] = '\0';
 
-        LOCK (&conf->subvolume_lock);
-	{
-                avail_subvol = dht_subvol_with_free_space_inodes(this, subvol, NULL,
-                                                                 layout, 0);
-                if(!avail_subvol)
-                {
-                        avail_subvol = dht_subvol_maxspace_nonzeroinode(this,
-                                                                        subvol,
-                                                                        layout);
-                }
+            gf_event(EVENT_DHT_DISK_USAGE, "volume=%s;subvol=%s;usage=%.2f %%",
+                     vol_name, subvol->name, usage);
+        }
+    }
+
+    if (subvol_filled_inodes && conf->subvolume_status[i]) {
+        if (!(conf->du_stats[i].log++ % (GF_UNIVERSAL_ANSWER * 10))) {
+            usage = 100 - conf->du_stats[i].avail_inodes;
+            gf_msg(this->name, GF_LOG_CRITICAL, 0, DHT_MSG_SUBVOL_INSUFF_INODES,
+                   "inodes on subvolume '%s' are at "
+                   "(%.2f %%), consider adding more bricks",
+                   subvol->name, usage);
+
+            strncpy(vol_name, this->name, sizeof(vol_name));
+            vol_name[(strlen(this->name) - 4)] = '\0';
+
+            gf_event(EVENT_DHT_INODES_USAGE,
+                     "volume=%s;subvol=%s;usage=%.2f %%", vol_name,
+                     subvol->name, usage);
+        }
+    }
 
-	}
-	UNLOCK (&conf->subvolume_lock);
-out:
-	if (!avail_subvol) {
-		gf_msg_debug (this->name, 0,
-		              "No subvolume has enough free space \
-                              and/or inodes to create");
-                avail_subvol = subvol;
-	}
+    is_subvol_filled = (subvol_filled_space || subvol_filled_inodes);
 
-        if (layout)
-                dht_layout_unref (this, layout);
-	return avail_subvol;
+    return is_subvol_filled;
 }
 
-static inline
-int32_t dht_subvol_has_err (dht_conf_t *conf, xlator_t *this, xlator_t *ignore,
-                            dht_layout_t *layout)
+/*Get the best subvolume to create the file in*/
+xlator_t *
+dht_free_disk_available_subvol(xlator_t *this, xlator_t *subvol,
+                               dht_local_t *local)
 {
-        int ret = -1;
-        int i   = 0;
-
-        if (!this || !layout)
-                goto out;
-
-        /* this check is meant for rebalance process. The source of the file
-         * should be ignored for space check */
-        if (this == ignore) {
-                goto out;
+    xlator_t *avail_subvol = NULL;
+    dht_conf_t *conf = NULL;
+    dht_layout_t *layout = NULL;
+    loc_t *loc = NULL;
+
+    conf = this->private;
+    if (!local)
+        goto out;
+    loc = &local->loc;
+    if (!local->layout) {
+        layout = dht_layout_get(this, loc->parent);
+
+        if (!layout) {
+            gf_msg_debug(this->name, 0,
+                         "Missing layout. path=%s,"
+                         " parent gfid = %s",
+                         loc->path, uuid_utoa(loc->parent->gfid));
+            goto out;
+        }
+    } else {
+        layout = dht_layout_ref(this, local->layout);
+    }
+
+    LOCK(&conf->subvolume_lock);
+    {
+        avail_subvol = dht_subvol_with_free_space_inodes(this, subvol, NULL,
+                                                         layout, 0);
+        if (!avail_subvol) {
+            avail_subvol = dht_subvol_maxspace_nonzeroinode(this, subvol,
+                                                            layout);
         }
+    }
+    UNLOCK(&conf->subvolume_lock);
+out:
+    if (!avail_subvol) {
+        gf_msg_debug(this->name, 0,
+                     "No subvolume has enough free space \
+                              and/or inodes to create");
+        avail_subvol = subvol;
+    }
 
+    if (layout)
+        dht_layout_unref(this, layout);
+    return avail_subvol;
+}
 
-        /* check if subvol has layout errors, before selecting it */
-        for (i = 0; i < layout->cnt; i++) {
-                if (!strcmp (layout->list[i].xlator->name, this->name) &&
-                     (layout->list[i].err != 0)) {
-                        ret = -1;
-                        goto out;
-                }
+static inline int32_t
+dht_subvol_has_err(dht_conf_t *conf, xlator_t *this, xlator_t *ignore,
+                   dht_layout_t *layout)
+{
+    int ret = -1;
+    int i = 0;
+
+    if (!this || !layout)
+        goto out;
+
+    /* this check is meant for rebalance process. The source of the file
+     * should be ignored for space check */
+    if (this == ignore) {
+        goto out;
+    }
+
+    /* check if subvol has layout errors, before selecting it */
+    for (i = 0; i < layout->cnt; i++) {
+        if (!strcmp(layout->list[i].xlator->name, this->name) &&
+            (layout->list[i].err != 0)) {
+            ret = -1;
+            goto out;
         }
+    }
 
-        /* discard decommissioned subvol */
-        if (conf->decommission_subvols_cnt) {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (conf->decommissioned_bricks[i] &&
-                            conf->decommissioned_bricks[i] == this) {
-                                ret = -1;
-                                goto out;
-                        }
-                }
+    /* discard decommissioned subvol */
+    if (conf->decommission_subvols_cnt) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->decommissioned_bricks[i] &&
+                conf->decommissioned_bricks[i] == this) {
+                ret = -1;
+                goto out;
+            }
         }
+    }
 
-        ret = 0;
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
 /*Get subvolume which has both space and inodes more than the min criteria*/
 xlator_t *
-dht_subvol_with_free_space_inodes(xlator_t *this, xlator_t *subvol, xlator_t *ignore,
-                                  dht_layout_t *layout, uint64_t filesize)
+dht_subvol_with_free_space_inodes(xlator_t *this, xlator_t *subvol,
+                                  xlator_t *ignore, dht_layout_t *layout,
+                                  uint64_t filesize)
 {
-        int i = 0;
-        double max = 0;
-        double max_inodes = 0;
-        int    ignore_subvol = 0;
-        uint64_t total_blocks = 0;
-        uint64_t avail_blocks = 0;
-        uint64_t frsize = 0;
-        double   post_availspace = 0;
-        double   post_percent = 0;
-
-        xlator_t *avail_subvol = NULL;
-        dht_conf_t *conf = NULL;
-
-        conf = this->private;
-
-        for(i=0; i < conf->subvolume_cnt; i++) {
-                /* check if subvol has layout errors and also it is not a
-                 * decommissioned brick, before selecting it */
-                ignore_subvol = dht_subvol_has_err (conf, conf->subvolumes[i],
-                                                    ignore, layout);
-                if (ignore_subvol)
-                        continue;
-
-                if ((conf->disk_unit == 'p') &&
-                    (conf->du_stats[i].avail_percent > conf->min_free_disk) &&
-                    (conf->du_stats[i].avail_inodes  > conf->min_free_inodes)) {
-                        if ((conf->du_stats[i].avail_inodes > max_inodes) ||
-                            (conf->du_stats[i].avail_percent > max)) {
-                                max = conf->du_stats[i].avail_percent;
-                                max_inodes = conf->du_stats[i].avail_inodes;
-                                avail_subvol = conf->subvolumes[i];
-                                total_blocks = conf->du_stats[i].total_blocks;
-                                avail_blocks = conf->du_stats[i].avail_blocks;
-                                frsize       = conf->du_stats[i].frsize;
-                        }
-                }
-
-                if ((conf->disk_unit != 'p') &&
-                    (conf->du_stats[i].avail_space > conf->min_free_disk) &&
-                    (conf->du_stats[i].avail_inodes  > conf->min_free_inodes)) {
-                        if ((conf->du_stats[i].avail_inodes > max_inodes) ||
-                            (conf->du_stats[i].avail_space > max)) {
-                                max = conf->du_stats[i].avail_space;
-                                max_inodes = conf->du_stats[i].avail_inodes;
-                                avail_subvol = conf->subvolumes[i];
-                        }
-                }
+    int i = 0;
+    double max = 0;
+    double max_inodes = 0;
+    int ignore_subvol = 0;
+    uint64_t total_blocks = 0;
+    uint64_t avail_blocks = 0;
+    uint64_t frsize = 0;
+    double post_availspace = 0;
+    double post_percent = 0;
+
+    xlator_t *avail_subvol = NULL;
+    dht_conf_t *conf = NULL;
+
+    conf = this->private;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        /* check if subvol has layout errors and also it is not a
+         * decommissioned brick, before selecting it */
+        ignore_subvol = dht_subvol_has_err(conf, conf->subvolumes[i], ignore,
+                                           layout);
+        if (ignore_subvol)
+            continue;
+
+        if ((conf->disk_unit == 'p') &&
+            (conf->du_stats[i].avail_percent > conf->min_free_disk) &&
+            (conf->du_stats[i].avail_inodes > conf->min_free_inodes)) {
+            if ((conf->du_stats[i].avail_inodes > max_inodes) ||
+                (conf->du_stats[i].avail_percent > max)) {
+                max = conf->du_stats[i].avail_percent;
+                max_inodes = conf->du_stats[i].avail_inodes;
+                avail_subvol = conf->subvolumes[i];
+                total_blocks = conf->du_stats[i].total_blocks;
+                avail_blocks = conf->du_stats[i].avail_blocks;
+                frsize = conf->du_stats[i].frsize;
+            }
         }
 
-        if (avail_subvol) {
-                if (conf->disk_unit == 'p') {
-                        post_availspace = (avail_blocks * frsize) - filesize;
-                        post_percent = (post_availspace * 100) / (total_blocks * frsize);
-                        if (post_percent < conf->min_free_disk)
-                                avail_subvol = NULL;
-                }
-                if (conf->disk_unit != 'p') {
-                        if ((max - filesize) < conf->min_free_disk)
-                                avail_subvol = NULL;
-                }
+        if ((conf->disk_unit != 'p') &&
+            (conf->du_stats[i].avail_space > conf->min_free_disk) &&
+            (conf->du_stats[i].avail_inodes > conf->min_free_inodes)) {
+            if ((conf->du_stats[i].avail_inodes > max_inodes) ||
+                (conf->du_stats[i].avail_space > max)) {
+                max = conf->du_stats[i].avail_space;
+                max_inodes = conf->du_stats[i].avail_inodes;
+                avail_subvol = conf->subvolumes[i];
+            }
         }
+    }
+
+    if (avail_subvol) {
+        if (conf->disk_unit == 'p') {
+            post_availspace = (avail_blocks * frsize) - filesize;
+            post_percent = (post_availspace * 100) / (total_blocks * frsize);
+            if (post_percent < conf->min_free_disk)
+                avail_subvol = NULL;
+        }
+        if (conf->disk_unit != 'p') {
+            if ((max - filesize) < conf->min_free_disk)
+                avail_subvol = NULL;
+        }
+    }
 
-        return avail_subvol;
+    return avail_subvol;
 }
 
-
 /* Get subvol which has at least one inode and maximum space */
 xlator_t *
-dht_subvol_maxspace_nonzeroinode (xlator_t *this, xlator_t *subvol,
-                                  dht_layout_t *layout)
+dht_subvol_maxspace_nonzeroinode(xlator_t *this, xlator_t *subvol,
+                                 dht_layout_t *layout)
 {
-        int         i = 0;
-        double      max = 0;
-        int         ignore_subvol = 0;
-
-        xlator_t   *avail_subvol = NULL;
-        dht_conf_t *conf = NULL;
-
-        conf = this->private;
-
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                /* check if subvol has layout errors and also it is not a
-                 * decommissioned brick, before selecting it*/
-
-                ignore_subvol = dht_subvol_has_err (conf, conf->subvolumes[i], NULL,
-                                                    layout);
-                if (ignore_subvol)
-                        continue;
-
-                if (conf->disk_unit == 'p') {
-                        if ((conf->du_stats[i].avail_percent > max)
-                            && (conf->du_stats[i].avail_inodes > 0 )) {
-                                max = conf->du_stats[i].avail_percent;
-                                avail_subvol = conf->subvolumes[i];
-                        }
-               } else {
-                         if ((conf->du_stats[i].avail_space > max)
-                            && (conf->du_stats[i].avail_inodes > 0)) {
-                                 max = conf->du_stats[i].avail_space;
-                                 avail_subvol = conf->subvolumes[i];
-                         }
-               }
+    int i = 0;
+    double max = 0;
+    int ignore_subvol = 0;
+
+    xlator_t *avail_subvol = NULL;
+    dht_conf_t *conf = NULL;
+
+    conf = this->private;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        /* check if subvol has layout errors and also it is not a
+         * decommissioned brick, before selecting it*/
+
+        ignore_subvol = dht_subvol_has_err(conf, conf->subvolumes[i], NULL,
+                                           layout);
+        if (ignore_subvol)
+            continue;
+
+        if (conf->disk_unit == 'p') {
+            if ((conf->du_stats[i].avail_percent > max) &&
+                (conf->du_stats[i].avail_inodes > 0)) {
+                max = conf->du_stats[i].avail_percent;
+                avail_subvol = conf->subvolumes[i];
+            }
+        } else {
+            if ((conf->du_stats[i].avail_space > max) &&
+                (conf->du_stats[i].avail_inodes > 0)) {
+                max = conf->du_stats[i].avail_space;
+                avail_subvol = conf->subvolumes[i];
+            }
         }
+    }
 
-        return avail_subvol;
+    return avail_subvol;
 }
diff --git a/xlators/cluster/dht/src/dht-hashfn.c b/xlators/cluster/dht/src/dht-hashfn.c
index f8e614a40aa..2f15c0370cc 100644
--- a/xlators/cluster/dht/src/dht-hashfn.c
+++ b/xlators/cluster/dht/src/dht-hashfn.c
@@ -8,104 +8,98 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "glusterfs.h"
 #include "xlator.h"
 #include "dht-common.h"
 #include "hashfn.h"
 
-
 int
-dht_hash_compute_internal (int type, const char *name, uint32_t *hash_p)
+dht_hash_compute_internal(int type, const char *name, uint32_t *hash_p)
 {
-        int      ret = 0;
-        uint32_t hash = 0;
+    int ret = 0;
+    uint32_t hash = 0;
 
-        switch (type) {
+    switch (type) {
         case DHT_HASH_TYPE_DM:
         case DHT_HASH_TYPE_DM_USER:
-                hash = gf_dm_hashfn (name, strlen (name));
-                break;
+            hash = gf_dm_hashfn(name, strlen(name));
+            break;
         default:
-                ret = -1;
-                break;
-        }
+            ret = -1;
+            break;
+    }
 
-        if (ret == 0) {
-                *hash_p = hash;
-        }
+    if (ret == 0) {
+        *hash_p = hash;
+    }
 
-        return ret;
+    return ret;
 }
 
-
-static
-gf_boolean_t
-dht_munge_name (const char *original, char *modified,
-                size_t len, regex_t *re)
+static gf_boolean_t
+dht_munge_name(const char *original, char *modified, size_t len, regex_t *re)
 {
-        regmatch_t  matches[2] = {{0}, };
-        size_t      new_len    = 0;
-        int         ret        = 0;
-
-        ret = regexec(re, original, 2, matches, 0);
-
-        if (ret != REG_NOMATCH) {
-                if (matches[1].rm_so != -1) {
-                        new_len = matches[1].rm_eo - matches[1].rm_so;
-                        /* Equal would fail due to the NUL at the end. */
-                        if (new_len < len) {
-                                memcpy (modified,original+matches[1].rm_so,
-                                        new_len);
-                                modified[new_len] = '\0';
-                                return _gf_true;
-                        }
-                }
+    regmatch_t matches[2] = {
+        {0},
+    };
+    size_t new_len = 0;
+    int ret = 0;
+
+    ret = regexec(re, original, 2, matches, 0);
+
+    if (ret != REG_NOMATCH) {
+        if (matches[1].rm_so != -1) {
+            new_len = matches[1].rm_eo - matches[1].rm_so;
+            /* Equal would fail due to the NUL at the end. */
+            if (new_len < len) {
+                memcpy(modified, original + matches[1].rm_so, new_len);
+                modified[new_len] = '\0';
+                return _gf_true;
+            }
         }
+    }
 
-        /* This is guaranteed safe because of how the dest was allocated. */
-        strcpy(modified, original);
-        return _gf_false;
+    /* This is guaranteed safe because of how the dest was allocated. */
+    strcpy(modified, original);
+    return _gf_false;
 }
 
 int
-dht_hash_compute (xlator_t *this, int type, const char *name, uint32_t *hash_p)
+dht_hash_compute(xlator_t *this, int type, const char *name, uint32_t *hash_p)
 {
-        char            *rsync_friendly_name    = NULL;
-        dht_conf_t      *priv                   = NULL;
-        size_t           len                    = 0;
-        gf_boolean_t     munged                 = _gf_false;
-
-        priv = this->private;
-
-        LOCK (&priv->lock);
-        {
-                if (priv->extra_regex_valid) {
-                        len = strlen(name) + 1;
-                        rsync_friendly_name = alloca(len);
-                        munged = dht_munge_name (name, rsync_friendly_name, len,
-                                                 &priv->extra_regex);
-                }
-
-                if (!munged && priv->rsync_regex_valid) {
-                        len = strlen(name) + 1;
-                        rsync_friendly_name = alloca(len);
-                        gf_msg_trace (this->name, 0, "trying regex for %s",
-                                      name);
-                        munged = dht_munge_name (name, rsync_friendly_name, len,
-                                                 &priv->rsync_regex);
-                        if (munged) {
-                                gf_msg_debug (this->name, 0,
-                                              "munged down to %s",
-                                              rsync_friendly_name);
-                        }
-                }
+    char *rsync_friendly_name = NULL;
+    dht_conf_t *priv = NULL;
+    size_t len = 0;
+    gf_boolean_t munged = _gf_false;
+
+    priv = this->private;
+
+    LOCK(&priv->lock);
+    {
+        if (priv->extra_regex_valid) {
+            len = strlen(name) + 1;
+            rsync_friendly_name = alloca(len);
+            munged = dht_munge_name(name, rsync_friendly_name, len,
+                                    &priv->extra_regex);
         }
-        UNLOCK (&priv->lock);
 
-        if (!munged) {
-                rsync_friendly_name = (char *)name;
+        if (!munged && priv->rsync_regex_valid) {
+            len = strlen(name) + 1;
+            rsync_friendly_name = alloca(len);
+            gf_msg_trace(this->name, 0, "trying regex for %s", name);
+            munged = dht_munge_name(name, rsync_friendly_name, len,
+                                    &priv->rsync_regex);
+            if (munged) {
+                gf_msg_debug(this->name, 0, "munged down to %s",
+                             rsync_friendly_name);
+            }
         }
+    }
+    UNLOCK(&priv->lock);
+
+    if (!munged) {
+        rsync_friendly_name = (char *)name;
+    }
 
-        return dht_hash_compute_internal (type, rsync_friendly_name, hash_p);
+    return dht_hash_compute_internal(type, rsync_friendly_name, hash_p);
 }
diff --git a/xlators/cluster/dht/src/dht-helper.c b/xlators/cluster/dht/src/dht-helper.c
index 403f0a0f514..6d6ec24729d 100644
--- a/xlators/cluster/dht/src/dht-helper.c
+++ b/xlators/cluster/dht/src/dht-helper.c
@@ -8,266 +8,249 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "glusterfs.h"
 #include "xlator.h"
 #include "dht-common.h"
 #include "dht-lock.h"
 
 static void
-dht_free_fd_ctx (dht_fd_ctx_t *fd_ctx)
+dht_free_fd_ctx(dht_fd_ctx_t *fd_ctx)
 {
-        GF_FREE (fd_ctx);
+    GF_FREE(fd_ctx);
 }
 
-
 int32_t
-dht_fd_ctx_destroy (xlator_t *this, fd_t *fd)
+dht_fd_ctx_destroy(xlator_t *this, fd_t *fd)
 {
-        dht_fd_ctx_t *fd_ctx  = NULL;
-        uint64_t      value   = 0;
-        int32_t       ret     = -1;
+    dht_fd_ctx_t *fd_ctx = NULL;
+    uint64_t value = 0;
+    int32_t ret = -1;
 
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, fd, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, fd, out);
 
-        ret = fd_ctx_del (fd, this, &value);
-        if (ret) {
-                goto out;
-        }
+    ret = fd_ctx_del(fd, this, &value);
+    if (ret) {
+        goto out;
+    }
 
-        fd_ctx = (dht_fd_ctx_t *)value;
-        if (fd_ctx) {
-                GF_REF_PUT (fd_ctx);
-        }
+    fd_ctx = (dht_fd_ctx_t *)value;
+    if (fd_ctx) {
+        GF_REF_PUT(fd_ctx);
+    }
 out:
-        return ret;
+    return ret;
 }
 
-
 static int
-__dht_fd_ctx_set (xlator_t *this, fd_t *fd, xlator_t *dst)
+__dht_fd_ctx_set(xlator_t *this, fd_t *fd, xlator_t *dst)
 {
-        dht_fd_ctx_t *fd_ctx  = NULL;
-        uint64_t      value   = 0;
-        int           ret     = -1;
+    dht_fd_ctx_t *fd_ctx = NULL;
+    uint64_t value = 0;
+    int ret = -1;
 
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, fd, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, fd, out);
 
-        fd_ctx = GF_CALLOC (1, sizeof (*fd_ctx), gf_dht_mt_fd_ctx_t);
+    fd_ctx = GF_CALLOC(1, sizeof(*fd_ctx), gf_dht_mt_fd_ctx_t);
 
-        if (!fd_ctx) {
-                goto out;
-        }
+    if (!fd_ctx) {
+        goto out;
+    }
 
-        fd_ctx->opened_on_dst = (uint64_t) dst;
-        GF_REF_INIT (fd_ctx, dht_free_fd_ctx);
+    fd_ctx->opened_on_dst = (uint64_t)dst;
+    GF_REF_INIT(fd_ctx, dht_free_fd_ctx);
 
-        value = (uint64_t) fd_ctx;
+    value = (uint64_t)fd_ctx;
 
-        ret = __fd_ctx_set (fd, this, value);
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_FD_CTX_SET_FAILED,
-                        "Failed to set fd ctx in fd=0x%p", fd);
-                GF_REF_PUT (fd_ctx);
-        }
+    ret = __fd_ctx_set(fd, this, value);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_FD_CTX_SET_FAILED,
+               "Failed to set fd ctx in fd=0x%p", fd);
+        GF_REF_PUT(fd_ctx);
+    }
 out:
-        return ret;
+    return ret;
 }
 
-
-
 int
-dht_fd_ctx_set (xlator_t *this, fd_t *fd, xlator_t *dst)
+dht_fd_ctx_set(xlator_t *this, fd_t *fd, xlator_t *dst)
 {
-        dht_fd_ctx_t *fd_ctx  = NULL;
-        uint64_t      value   = 0;
-        int           ret     = -1;
-
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, fd, out);
-
-        LOCK (&fd->lock);
-        {
-                ret = __fd_ctx_get (fd, this, &value);
-                if (ret && value) {
-
-                        fd_ctx = (dht_fd_ctx_t *) value;
-                        if (fd_ctx->opened_on_dst == (uint64_t) dst)  {
-                                /* This could happen due to racing
-                                 * check_progress tasks*/
-                                goto unlock;
-                        } else {
-                                /* This would be a big problem*/
-                                gf_msg (this->name, GF_LOG_WARNING, 0,
-                                        DHT_MSG_INVALID_VALUE,
-                                        "Different dst found in the fd ctx");
-
-                                /* Overwrite and hope for the best*/
-                                fd_ctx->opened_on_dst = (uint64_t)dst;
-                                goto unlock;
-                        }
+    dht_fd_ctx_t *fd_ctx = NULL;
+    uint64_t value = 0;
+    int ret = -1;
+
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, fd, out);
+
+    LOCK(&fd->lock);
+    {
+        ret = __fd_ctx_get(fd, this, &value);
+        if (ret && value) {
+            fd_ctx = (dht_fd_ctx_t *)value;
+            if (fd_ctx->opened_on_dst == (uint64_t)dst) {
+                /* This could happen due to racing
+                 * check_progress tasks*/
+                goto unlock;
+            } else {
+                /* This would be a big problem*/
+                gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_INVALID_VALUE,
+                       "Different dst found in the fd ctx");
 
-                }
-                ret = __dht_fd_ctx_set (this, fd, dst);
+                /* Overwrite and hope for the best*/
+                fd_ctx->opened_on_dst = (uint64_t)dst;
+                goto unlock;
+            }
         }
+        ret = __dht_fd_ctx_set(this, fd, dst);
+    }
 unlock:
-        UNLOCK (&fd->lock);
+    UNLOCK(&fd->lock);
 out:
-        return ret;
+    return ret;
 }
 
-
-
-static
-dht_fd_ctx_t *
-dht_fd_ctx_get (xlator_t *this, fd_t *fd)
+static dht_fd_ctx_t *
+dht_fd_ctx_get(xlator_t *this, fd_t *fd)
 {
-        dht_fd_ctx_t *fd_ctx  = NULL;
-        int           ret     = -1;
-        uint64_t      tmp_val = 0;
-
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, fd, out);
-
-        LOCK (&fd->lock);
-        {
-                ret = __fd_ctx_get (fd, this, &tmp_val);
-                if ((ret < 0) || (tmp_val == 0)) {
-                        UNLOCK (&fd->lock);
-                        goto out;
-                }
+    dht_fd_ctx_t *fd_ctx = NULL;
+    int ret = -1;
+    uint64_t tmp_val = 0;
+
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, fd, out);
 
-                fd_ctx = (dht_fd_ctx_t *)tmp_val;
-                GF_REF_GET (fd_ctx);
+    LOCK(&fd->lock);
+    {
+        ret = __fd_ctx_get(fd, this, &tmp_val);
+        if ((ret < 0) || (tmp_val == 0)) {
+            UNLOCK(&fd->lock);
+            goto out;
         }
-        UNLOCK (&fd->lock);
+
+        fd_ctx = (dht_fd_ctx_t *)tmp_val;
+        GF_REF_GET(fd_ctx);
+    }
+    UNLOCK(&fd->lock);
 
 out:
-        return fd_ctx;
+    return fd_ctx;
 }
 
 gf_boolean_t
-dht_fd_open_on_dst (xlator_t *this, fd_t *fd, xlator_t *dst)
+dht_fd_open_on_dst(xlator_t *this, fd_t *fd, xlator_t *dst)
 {
-        dht_fd_ctx_t  *fd_ctx  = NULL;
-        gf_boolean_t   opened  = _gf_false;
+    dht_fd_ctx_t *fd_ctx = NULL;
+    gf_boolean_t opened = _gf_false;
 
-        fd_ctx = dht_fd_ctx_get (this, fd);
+    fd_ctx = dht_fd_ctx_get(this, fd);
 
-        if (fd_ctx) {
-                if (fd_ctx->opened_on_dst == (uint64_t) dst) {
-                        opened = _gf_true;
-                }
-                GF_REF_PUT (fd_ctx);
+    if (fd_ctx) {
+        if (fd_ctx->opened_on_dst == (uint64_t)dst) {
+            opened = _gf_true;
         }
+        GF_REF_PUT(fd_ctx);
+    }
 
-        return opened;
+    return opened;
 }
 
-
 void
-dht_free_mig_info (void *data)
+dht_free_mig_info(void *data)
 {
-        dht_migrate_info_t *miginfo = NULL;
+    dht_migrate_info_t *miginfo = NULL;
 
-        miginfo = data;
-        GF_FREE (miginfo);
+    miginfo = data;
+    GF_FREE(miginfo);
 
-        return;
+    return;
 }
 
 static int
-dht_inode_ctx_set_mig_info (xlator_t *this, inode_t *inode,
-                            xlator_t *src_subvol, xlator_t *dst_subvol)
+dht_inode_ctx_set_mig_info(xlator_t *this, inode_t *inode, xlator_t *src_subvol,
+                           xlator_t *dst_subvol)
 {
-        dht_migrate_info_t *miginfo = NULL;
-        uint64_t            value   = 0;
-        int                 ret     = -1;
+    dht_migrate_info_t *miginfo = NULL;
+    uint64_t value = 0;
+    int ret = -1;
 
-        miginfo = GF_CALLOC (1, sizeof (*miginfo), gf_dht_mt_miginfo_t);
-        if (miginfo == NULL)
-                goto out;
+    miginfo = GF_CALLOC(1, sizeof(*miginfo), gf_dht_mt_miginfo_t);
+    if (miginfo == NULL)
+        goto out;
 
-        miginfo->src_subvol = src_subvol;
-        miginfo->dst_subvol = dst_subvol;
-        GF_REF_INIT (miginfo, dht_free_mig_info);
+    miginfo->src_subvol = src_subvol;
+    miginfo->dst_subvol = dst_subvol;
+    GF_REF_INIT(miginfo, dht_free_mig_info);
 
-        value = (uint64_t) miginfo;
+    value = (uint64_t)miginfo;
 
-        ret = inode_ctx_set1 (inode, this, &value);
-        if (ret < 0) {
-                GF_REF_PUT (miginfo);
-        }
+    ret = inode_ctx_set1(inode, this, &value);
+    if (ret < 0) {
+        GF_REF_PUT(miginfo);
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
-
 int
-dht_inode_ctx_get_mig_info (xlator_t *this, inode_t *inode,
-                            xlator_t **src_subvol, xlator_t **dst_subvol)
+dht_inode_ctx_get_mig_info(xlator_t *this, inode_t *inode,
+                           xlator_t **src_subvol, xlator_t **dst_subvol)
 {
-        int                 ret         = -1;
-        uint64_t            tmp_miginfo = 0;
-        dht_migrate_info_t *miginfo     = NULL;
-
-        LOCK (&inode->lock);
-        {
-                ret =  __inode_ctx_get1 (inode, this, &tmp_miginfo);
-                if ((ret < 0) || (tmp_miginfo == 0)) {
-                        UNLOCK (&inode->lock);
-                        goto out;
-                }
+    int ret = -1;
+    uint64_t tmp_miginfo = 0;
+    dht_migrate_info_t *miginfo = NULL;
 
-                miginfo = (dht_migrate_info_t *)tmp_miginfo;
-                GF_REF_GET (miginfo);
+    LOCK(&inode->lock);
+    {
+        ret = __inode_ctx_get1(inode, this, &tmp_miginfo);
+        if ((ret < 0) || (tmp_miginfo == 0)) {
+            UNLOCK(&inode->lock);
+            goto out;
         }
-        UNLOCK (&inode->lock);
 
-        if (src_subvol)
-                *src_subvol = miginfo->src_subvol;
+        miginfo = (dht_migrate_info_t *)tmp_miginfo;
+        GF_REF_GET(miginfo);
+    }
+    UNLOCK(&inode->lock);
+
+    if (src_subvol)
+        *src_subvol = miginfo->src_subvol;
 
-        if (dst_subvol)
-                *dst_subvol = miginfo->dst_subvol;
+    if (dst_subvol)
+        *dst_subvol = miginfo->dst_subvol;
 
-        GF_REF_PUT (miginfo);
+    GF_REF_PUT(miginfo);
 
 out:
-        return ret;
+    return ret;
 }
 
 gf_boolean_t
-dht_mig_info_is_invalid (xlator_t *current, xlator_t *src_subvol,
-                      xlator_t *dst_subvol)
+dht_mig_info_is_invalid(xlator_t *current, xlator_t *src_subvol,
+                        xlator_t *dst_subvol)
 {
-
-/* Not set
- */
-        if (!src_subvol || !dst_subvol)
-                return _gf_true;
-
-/* Invalid scenarios:
- * The src_subvol does not match the subvol on which the current op was sent
- * so the cached subvol has changed between the last mig_info_set and now.
- * src_subvol == dst_subvol. The file was migrated without any FOP detecting
- * a P2 so the old dst is now the current subvol.
- *
- * There is still one scenario where the info could be outdated - if
- * file has undergone multiple migrations and ends up on the same src_subvol
- * on which the mig_info was first set.
- */
-        if ((current == dst_subvol) || (current != src_subvol))
-                return _gf_true;
-
-        return _gf_false;
+    /* Not set
+     */
+    if (!src_subvol || !dst_subvol)
+        return _gf_true;
+
+    /* Invalid scenarios:
+     * The src_subvol does not match the subvol on which the current op was sent
+     * so the cached subvol has changed between the last mig_info_set and now.
+     * src_subvol == dst_subvol. The file was migrated without any FOP detecting
+     * a P2 so the old dst is now the current subvol.
+     *
+     * There is still one scenario where the info could be outdated - if
+     * file has undergone multiple migrations and ends up on the same src_subvol
+     * on which the mig_info was first set.
+     */
+    if ((current == dst_subvol) || (current != src_subvol))
+        return _gf_true;
+
+    return _gf_false;
 }
 
-
-
 /* Used to check if fd fops have the fd opened on the cached subvol
  * This is required when:
  * 1. an fd is opened on FILE1 on subvol1
@@ -279,337 +262,304 @@ dht_mig_info_is_invalid (xlator_t *current, xlator_t *src_subvol,
  *
  */
 
-
 int
-dht_check_and_open_fd_on_subvol_complete (int ret, call_frame_t *frame,
-                                          void *data)
+dht_check_and_open_fd_on_subvol_complete(int ret, call_frame_t *frame,
+                                         void *data)
 {
-        glusterfs_fop_t     fop     = 0;
-        dht_local_t        *local   = NULL;
-        xlator_t           *subvol  = NULL;
-        xlator_t           *this  = NULL;
-        fd_t               *fd      = NULL;
-        int                 op_errno = -1;
-
-        local = frame->local;
-        this = frame->this;
-        fop = local->fop;
-        subvol = local->cached_subvol;
-        fd = local->fd;
-
-        if (ret) {
-                op_errno = local->op_errno;
-                goto handle_err;
-        }
-
-        switch (fop) {
-
+    glusterfs_fop_t fop = 0;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *this = NULL;
+    fd_t *fd = NULL;
+    int op_errno = -1;
+
+    local = frame->local;
+    this = frame->this;
+    fop = local->fop;
+    subvol = local->cached_subvol;
+    fd = local->fd;
+
+    if (ret) {
+        op_errno = local->op_errno;
+        goto handle_err;
+    }
+
+    switch (fop) {
         case GF_FOP_WRITE:
-                STACK_WIND_COOKIE (frame, dht_writev_cbk, subvol, subvol,
-                                   subvol->fops->writev, fd,
-                                   local->rebalance.vector,
-                                   local->rebalance.count,
-                                   local->rebalance.offset,
-                                   local->rebalance.flags,
-                                   local->rebalance.iobref, local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_writev_cbk, subvol, subvol,
+                              subvol->fops->writev, fd, local->rebalance.vector,
+                              local->rebalance.count, local->rebalance.offset,
+                              local->rebalance.flags, local->rebalance.iobref,
+                              local->xattr_req);
+            break;
 
         case GF_FOP_FLUSH:
-                STACK_WIND (frame, dht_flush_cbk, subvol,
-                            subvol->fops->flush, fd, local->xattr_req);
-                break;
+            STACK_WIND(frame, dht_flush_cbk, subvol, subvol->fops->flush, fd,
+                       local->xattr_req);
+            break;
 
         case GF_FOP_FSETATTR:
-                STACK_WIND_COOKIE (frame, dht_file_setattr_cbk, subvol,
-                                   subvol, subvol->fops->fsetattr, fd,
-                                   &local->rebalance.stbuf,
-                                   local->rebalance.flags,
-                                   local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_file_setattr_cbk, subvol, subvol,
+                              subvol->fops->fsetattr, fd,
+                              &local->rebalance.stbuf, local->rebalance.flags,
+                              local->xattr_req);
+            break;
 
         case GF_FOP_ZEROFILL:
-                STACK_WIND_COOKIE (frame, dht_zerofill_cbk, subvol, subvol,
-                                   subvol->fops->zerofill, fd,
-                                   local->rebalance.offset,
-                                   local->rebalance.size, local->xattr_req);
+            STACK_WIND_COOKIE(frame, dht_zerofill_cbk, subvol, subvol,
+                              subvol->fops->zerofill, fd,
+                              local->rebalance.offset, local->rebalance.size,
+                              local->xattr_req);
 
-                break;
+            break;
 
         case GF_FOP_DISCARD:
-                STACK_WIND_COOKIE (frame, dht_discard_cbk, subvol, subvol,
-                                   subvol->fops->discard, local->fd,
-                                   local->rebalance.offset,
-                                   local->rebalance.size,
-                                   local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_discard_cbk, subvol, subvol,
+                              subvol->fops->discard, local->fd,
+                              local->rebalance.offset, local->rebalance.size,
+                              local->xattr_req);
+            break;
 
         case GF_FOP_FALLOCATE:
-                STACK_WIND_COOKIE (frame, dht_fallocate_cbk, subvol, subvol,
-                                   subvol->fops->fallocate, fd,
-                                   local->rebalance.flags,
-                                   local->rebalance.offset,
-                                   local->rebalance.size,
-                                   local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_fallocate_cbk, subvol, subvol,
+                              subvol->fops->fallocate, fd,
+                              local->rebalance.flags, local->rebalance.offset,
+                              local->rebalance.size, local->xattr_req);
+            break;
 
         case GF_FOP_FTRUNCATE:
-                STACK_WIND_COOKIE (frame, dht_truncate_cbk, subvol, subvol,
-                                   subvol->fops->ftruncate, fd,
-                                   local->rebalance.offset, local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_truncate_cbk, subvol, subvol,
+                              subvol->fops->ftruncate, fd,
+                              local->rebalance.offset, local->xattr_req);
+            break;
 
         case GF_FOP_FSYNC:
-                STACK_WIND_COOKIE (frame, dht_fsync_cbk, subvol, subvol,
-                                   subvol->fops->fsync, local->fd,
-                                   local->rebalance.flags, local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_fsync_cbk, subvol, subvol,
+                              subvol->fops->fsync, local->fd,
+                              local->rebalance.flags, local->xattr_req);
+            break;
 
         case GF_FOP_READ:
-                STACK_WIND (frame, dht_readv_cbk, subvol, subvol->fops->readv,
-                            local->fd, local->rebalance.size,
-                            local->rebalance.offset,
-                            local->rebalance.flags, local->xattr_req);
-                break;
+            STACK_WIND(frame, dht_readv_cbk, subvol, subvol->fops->readv,
+                       local->fd, local->rebalance.size,
+                       local->rebalance.offset, local->rebalance.flags,
+                       local->xattr_req);
+            break;
 
         case GF_FOP_FSTAT:
-                STACK_WIND_COOKIE (frame, dht_file_attr_cbk, subvol,
-                                   subvol, subvol->fops->fstat, fd,
-                                   local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_file_attr_cbk, subvol, subvol,
+                              subvol->fops->fstat, fd, local->xattr_req);
+            break;
 
         case GF_FOP_FSETXATTR:
-                STACK_WIND_COOKIE (frame, dht_file_setxattr_cbk, subvol,
-                                   subvol, subvol->fops->fsetxattr, local->fd,
-                                   local->rebalance.xattr,
-                                   local->rebalance.flags, local->xattr_req);
-                break;
+            STACK_WIND_COOKIE(frame, dht_file_setxattr_cbk, subvol, subvol,
+                              subvol->fops->fsetxattr, local->fd,
+                              local->rebalance.xattr, local->rebalance.flags,
+                              local->xattr_req);
+            break;
 
         case GF_FOP_FREMOVEXATTR:
-                STACK_WIND_COOKIE (frame, dht_file_removexattr_cbk, subvol,
-                                   subvol, subvol->fops->fremovexattr,
-                                   local->fd, local->key, local->xattr_req);
+            STACK_WIND_COOKIE(frame, dht_file_removexattr_cbk, subvol, subvol,
+                              subvol->fops->fremovexattr, local->fd, local->key,
+                              local->xattr_req);
 
-                break;
+            break;
 
         default:
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_UNKNOWN_FOP,
-                        "Unknown FOP on fd (%p) on file %s @ %s",
-                        fd, uuid_utoa (fd->inode->gfid),
-                        subvol->name);
-                break;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_UNKNOWN_FOP,
+                   "Unknown FOP on fd (%p) on file %s @ %s", fd,
+                   uuid_utoa(fd->inode->gfid), subvol->name);
+            break;
+    }
 
-        }
+    goto out;
 
-        goto out;
-
-        /* Could not open the fd on the dst. Unwind */
+    /* Could not open the fd on the dst. Unwind */
 
 handle_err:
 
-        switch (fop) {
-
+    switch (fop) {
         case GF_FOP_WRITE:
-                DHT_STACK_UNWIND (writev, frame, -1,
-                                  op_errno, NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(writev, frame, -1, op_errno, NULL, NULL, NULL);
+            break;
 
         case GF_FOP_FLUSH:
-                DHT_STACK_UNWIND (flush, frame, -1, op_errno, NULL);
-                break;
+            DHT_STACK_UNWIND(flush, frame, -1, op_errno, NULL);
+            break;
 
         case GF_FOP_FSETATTR:
-                DHT_STACK_UNWIND (fsetattr, frame, -1, op_errno,
-                                  NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(fsetattr, frame, -1, op_errno, NULL, NULL, NULL);
+            break;
 
         case GF_FOP_ZEROFILL:
-                DHT_STACK_UNWIND (zerofill, frame, -1, op_errno,
-                                  NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(zerofill, frame, -1, op_errno, NULL, NULL, NULL);
+            break;
 
         case GF_FOP_DISCARD:
-                DHT_STACK_UNWIND (discard, frame, -1, op_errno,
-                                  NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(discard, frame, -1, op_errno, NULL, NULL, NULL);
+            break;
 
         case GF_FOP_FALLOCATE:
-                DHT_STACK_UNWIND (fallocate, frame, -1, op_errno,
-                                  NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(fallocate, frame, -1, op_errno, NULL, NULL, NULL);
+            break;
 
         case GF_FOP_FTRUNCATE:
-                DHT_STACK_UNWIND (ftruncate, frame, -1, op_errno,
-                                  NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(ftruncate, frame, -1, op_errno, NULL, NULL, NULL);
+            break;
 
         case GF_FOP_FSYNC:
-                DHT_STACK_UNWIND (fsync, frame, -1, op_errno, NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(fsync, frame, -1, op_errno, NULL, NULL, NULL);
+            break;
 
         case GF_FOP_READ:
-                DHT_STACK_UNWIND (readv, frame, -1, op_errno, NULL,
-                                  0, NULL, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(readv, frame, -1, op_errno, NULL, 0, NULL, NULL,
+                             NULL);
+            break;
 
         case GF_FOP_FSTAT:
-                DHT_STACK_UNWIND (fstat, frame, -1, op_errno, NULL, NULL);
-                break;
+            DHT_STACK_UNWIND(fstat, frame, -1, op_errno, NULL, NULL);
+            break;
 
         case GF_FOP_FSETXATTR:
-                DHT_STACK_UNWIND (fsetxattr, frame, -1, op_errno, NULL);
-                break;
+            DHT_STACK_UNWIND(fsetxattr, frame, -1, op_errno, NULL);
+            break;
 
         case GF_FOP_FREMOVEXATTR:
-                DHT_STACK_UNWIND (fremovexattr, frame, -1, op_errno, NULL);
-                break;
+            DHT_STACK_UNWIND(fremovexattr, frame, -1, op_errno, NULL);
+            break;
 
         default:
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_UNKNOWN_FOP,
-                        "Unknown FOP on fd (%p) on file %s @ %s",
-                        fd, uuid_utoa (fd->inode->gfid),
-                        subvol->name);
-                break;
-        }
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_UNKNOWN_FOP,
+                   "Unknown FOP on fd (%p) on file %s @ %s", fd,
+                   uuid_utoa(fd->inode->gfid), subvol->name);
+            break;
+    }
 
 out:
 
-        return 0;
-
+    return 0;
 }
 
-
 /* Check once again if the fd has been opened on the cached subvol.
  * If not, open and update the fd_ctx.
  */
 
 int
-dht_check_and_open_fd_on_subvol_task (void *data)
+dht_check_and_open_fd_on_subvol_task(void *data)
 {
-        loc_t          loc        = {0,};
-        int            ret        = -1;
-        call_frame_t  *frame      = NULL;
-        dht_local_t   *local      = NULL;
-        fd_t          *fd         = NULL;
-        xlator_t      *this       = NULL;
-        xlator_t      *subvol     = NULL;
-
-
-        frame = data;
-        local = frame->local;
-        this = THIS;
-        fd = local->fd;
-        subvol = local->cached_subvol;
-
-        local->fd_checked = _gf_true;
-
-        if (fd_is_anonymous (fd) || dht_fd_open_on_dst (this, fd, subvol)) {
-                ret = 0;
-                goto out;
-        }
-
-        gf_msg_debug (this->name, 0,
-                      "Opening fd (%p, flags=0%o) on file %s @ %s",
-                      fd, fd->flags, uuid_utoa (fd->inode->gfid),
-                      subvol->name);
+    loc_t loc = {
+        0,
+    };
+    int ret = -1;
+    call_frame_t *frame = NULL;
+    dht_local_t *local = NULL;
+    fd_t *fd = NULL;
+    xlator_t *this = NULL;
+    xlator_t *subvol = NULL;
+
+    frame = data;
+    local = frame->local;
+    this = THIS;
+    fd = local->fd;
+    subvol = local->cached_subvol;
+
+    local->fd_checked = _gf_true;
+
+    if (fd_is_anonymous(fd) || dht_fd_open_on_dst(this, fd, subvol)) {
+        ret = 0;
+        goto out;
+    }
 
+    gf_msg_debug(this->name, 0, "Opening fd (%p, flags=0%o) on file %s @ %s",
+                 fd, fd->flags, uuid_utoa(fd->inode->gfid), subvol->name);
 
-        loc.inode = inode_ref (fd->inode);
-        gf_uuid_copy (loc.gfid, fd->inode->gfid);
+    loc.inode = inode_ref(fd->inode);
+    gf_uuid_copy(loc.gfid, fd->inode->gfid);
 
-        /* Open this on the dst subvol */
+    /* Open this on the dst subvol */
 
-        SYNCTASK_SETID(0, 0);
+    SYNCTASK_SETID(0, 0);
 
-        ret = syncop_open (subvol, &loc,
-                           (fd->flags & ~(O_CREAT | O_EXCL | O_TRUNC)),
-                           fd, NULL, NULL);
+    ret = syncop_open(subvol, &loc, (fd->flags & ~(O_CREAT | O_EXCL | O_TRUNC)),
+                      fd, NULL, NULL);
 
-        if (ret < 0) {
-
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_OPEN_FD_ON_DST_FAILED,
-                        "Failed to open the fd"
-                        " (%p, flags=0%o) on file %s @ %s",
-                        fd, fd->flags, uuid_utoa (fd->inode->gfid),
-                        subvol->name);
-                /* This can happen if the cached subvol was updated in the
-                 * inode_ctx and the fd was opened on the new cached suvol
-                 * after this fop was wound on the old cached subvol.
-                 * As we do not close the fd on the old subvol (a leak)
-                 * don't treat ENOENT as an error and allow the phase1/phase2
-                 * checks to handle it.
-                 */
-
-                if ((-ret != ENOENT) && (-ret != ESTALE)) {
-                        local->op_errno = -ret;
-                        ret = -1;
-                } else {
-                        ret = 0;
-                }
-
-                local->op_errno = -ret;
-                ret = -1;
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_OPEN_FD_ON_DST_FAILED,
+               "Failed to open the fd"
+               " (%p, flags=0%o) on file %s @ %s",
+               fd, fd->flags, uuid_utoa(fd->inode->gfid), subvol->name);
+        /* This can happen if the cached subvol was updated in the
+         * inode_ctx and the fd was opened on the new cached suvol
+         * after this fop was wound on the old cached subvol.
+         * As we do not close the fd on the old subvol (a leak)
+         * don't treat ENOENT as an error and allow the phase1/phase2
+         * checks to handle it.
+         */
 
+        if ((-ret != ENOENT) && (-ret != ESTALE)) {
+            local->op_errno = -ret;
+            ret = -1;
         } else {
-                dht_fd_ctx_set (this, fd, subvol);
+            ret = 0;
         }
 
-        SYNCTASK_SETID (frame->root->uid, frame->root->gid);
+        local->op_errno = -ret;
+        ret = -1;
+
+    } else {
+        dht_fd_ctx_set(this, fd, subvol);
+    }
+
+    SYNCTASK_SETID(frame->root->uid, frame->root->gid);
 out:
-        loc_wipe (&loc);
+    loc_wipe(&loc);
 
-        return ret;
+    return ret;
 }
 
-
 int
-dht_check_and_open_fd_on_subvol (xlator_t *this, call_frame_t *frame)
+dht_check_and_open_fd_on_subvol(xlator_t *this, call_frame_t *frame)
 {
-        int ret            = -1;
-        dht_local_t *local = NULL;
-
-/*
-        if (dht_fd_open_on_dst (this, fd, subvol))
-                goto out;
-*/
-        local = frame->local;
-
-        ret = synctask_new (this->ctx->env,
-                            dht_check_and_open_fd_on_subvol_task,
-                            dht_check_and_open_fd_on_subvol_complete,
-                            frame, frame);
-
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, 0,
-                        "Failed to create synctask"
-                        " to check and open fd=%p", local->fd);
-        }
-
-        return ret;
+    int ret = -1;
+    dht_local_t *local = NULL;
+
+    /*
+            if (dht_fd_open_on_dst (this, fd, subvol))
+                    goto out;
+    */
+    local = frame->local;
+
+    ret = synctask_new(this->ctx->env, dht_check_and_open_fd_on_subvol_task,
+                       dht_check_and_open_fd_on_subvol_complete, frame, frame);
+
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, 0,
+               "Failed to create synctask"
+               " to check and open fd=%p",
+               local->fd);
+    }
+
+    return ret;
 }
 
-
-
 int
-dht_frame_return (call_frame_t *frame)
+dht_frame_return(call_frame_t *frame)
 {
-        dht_local_t *local = NULL;
-        int          this_call_cnt = -1;
+    dht_local_t *local = NULL;
+    int this_call_cnt = -1;
 
-        if (!frame)
-                return -1;
+    if (!frame)
+        return -1;
 
-        local = frame->local;
+    local = frame->local;
 
-        LOCK (&frame->lock);
-        {
-                this_call_cnt = --local->call_cnt;
-        }
-        UNLOCK (&frame->lock);
+    LOCK(&frame->lock);
+    {
+        this_call_cnt = --local->call_cnt;
+    }
+    UNLOCK(&frame->lock);
 
-        return this_call_cnt;
+    return this_call_cnt;
 }
 
 /*
@@ -622,652 +572,636 @@ dht_frame_return (call_frame_t *frame)
  */
 
 int
-dht_filter_loc_subvol_key (xlator_t *this, loc_t *loc, loc_t *new_loc,
-                           xlator_t **subvol)
+dht_filter_loc_subvol_key(xlator_t *this, loc_t *loc, loc_t *new_loc,
+                          xlator_t **subvol)
 {
-        char          *new_name  = NULL;
-        char          *new_path  = NULL;
-        xlator_list_t *trav      = NULL;
-        char           key[1024] = {0,};
-        int            ret       = 0; /* not found */
-        int            keylen    = 0;
-        int            name_len  = 0;
-        int            path_len  = 0;
-
-        /* Why do other tasks if first required 'char' itself is not there */
-        if (!new_loc || !loc || !loc->name || !strchr (loc->name, '@')) {
-                /* Skip the GF_FREE checks here */
-                return ret;
-        }
-
-        trav = this->children;
-        while (trav) {
-                keylen = snprintf (key, sizeof (key), "*@%s:%s", this->name,
-                                   trav->xlator->name);
-                /* Ignore '*' */
-                keylen = keylen - 1;
-                if (fnmatch (key, loc->name, FNM_NOESCAPE) == 0) {
-                        name_len = strlen (loc->name) - keylen;
-                        new_name = GF_MALLOC(name_len + 1,
-                                             gf_common_mt_char);
-                        if (!new_name)
-                                goto out;
-                        if (fnmatch (key, loc->path, FNM_NOESCAPE) == 0) {
-                                path_len = strlen (loc->path) - keylen;
-                                new_path = GF_MALLOC(path_len + 1,
-                                                     gf_common_mt_char);
-                                if (!new_path)
-                                        goto out;
-                                snprintf (new_path, path_len + 1,
-                                          "%s", loc->path);
-                        }
-                        snprintf (new_name, name_len + 1, "%s",
-                                  loc->name);
-
-                        if (new_loc) {
-                                new_loc->path   = ((new_path) ? new_path:
-                                                   gf_strdup (loc->path));
-                                new_loc->name   = new_name;
-                                new_loc->inode  = inode_ref (loc->inode);
-                                new_loc->parent = inode_ref (loc->parent);
-                        }
-                        *subvol         = trav->xlator;
-                        ret = 1;  /* success */
-                        goto out;
-                }
-                trav = trav->next;
-        }
-out:
-        if (!ret) {
-                /* !success */
-                GF_FREE (new_path);
-                GF_FREE (new_name);
-        }
+    char *new_name = NULL;
+    char *new_path = NULL;
+    xlator_list_t *trav = NULL;
+    char key[1024] = {
+        0,
+    };
+    int ret = 0; /* not found */
+    int keylen = 0;
+    int name_len = 0;
+    int path_len = 0;
+
+    /* Why do other tasks if first required 'char' itself is not there */
+    if (!new_loc || !loc || !loc->name || !strchr(loc->name, '@')) {
+        /* Skip the GF_FREE checks here */
         return ret;
+    }
+
+    trav = this->children;
+    while (trav) {
+        keylen = snprintf(key, sizeof(key), "*@%s:%s", this->name,
+                          trav->xlator->name);
+        /* Ignore '*' */
+        keylen = keylen - 1;
+        if (fnmatch(key, loc->name, FNM_NOESCAPE) == 0) {
+            name_len = strlen(loc->name) - keylen;
+            new_name = GF_MALLOC(name_len + 1, gf_common_mt_char);
+            if (!new_name)
+                goto out;
+            if (fnmatch(key, loc->path, FNM_NOESCAPE) == 0) {
+                path_len = strlen(loc->path) - keylen;
+                new_path = GF_MALLOC(path_len + 1, gf_common_mt_char);
+                if (!new_path)
+                    goto out;
+                snprintf(new_path, path_len + 1, "%s", loc->path);
+            }
+            snprintf(new_name, name_len + 1, "%s", loc->name);
+
+            if (new_loc) {
+                new_loc->path = ((new_path) ? new_path : gf_strdup(loc->path));
+                new_loc->name = new_name;
+                new_loc->inode = inode_ref(loc->inode);
+                new_loc->parent = inode_ref(loc->parent);
+            }
+            *subvol = trav->xlator;
+            ret = 1; /* success */
+            goto out;
+        }
+        trav = trav->next;
+    }
+out:
+    if (!ret) {
+        /* !success */
+        GF_FREE(new_path);
+        GF_FREE(new_name);
+    }
+    return ret;
 }
 
 static xlator_t *
 dht_get_subvol_from_id(xlator_t *this, int client_id)
 {
-        xlator_t   *xl   = NULL;
-        dht_conf_t *conf = NULL;
-        char       *sid  = NULL;
-        int32_t     ret  = -1;
-
-        conf = this->private;
-
-        ret = gf_asprintf(&sid, "%d", client_id);
-        if (ret == -1) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_ASPRINTF_FAILED, "asprintf failed while "
-                        "fetching subvol from the id");
-                goto out;
-        }
+    xlator_t *xl = NULL;
+    dht_conf_t *conf = NULL;
+    char *sid = NULL;
+    int32_t ret = -1;
+
+    conf = this->private;
+
+    ret = gf_asprintf(&sid, "%d", client_id);
+    if (ret == -1) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_ASPRINTF_FAILED,
+               "asprintf failed while "
+               "fetching subvol from the id");
+        goto out;
+    }
 
-        if (dict_get_ptr(conf->leaf_to_subvol, sid, (void **) &xl))
-                xl = NULL;
+    if (dict_get_ptr(conf->leaf_to_subvol, sid, (void **)&xl))
+        xl = NULL;
 
-        GF_FREE (sid);
+    GF_FREE(sid);
 
 out:
-        return xl;
-
+    return xl;
 }
 
 int
-dht_deitransform (xlator_t *this, uint64_t y, xlator_t **subvol_p)
+dht_deitransform(xlator_t *this, uint64_t y, xlator_t **subvol_p)
 {
-        int         client_id = 0;
-        xlator_t   *subvol = 0;
-        dht_conf_t *conf = NULL;
+    int client_id = 0;
+    xlator_t *subvol = 0;
+    dht_conf_t *conf = NULL;
 
-        if (!this->private)
-                return -1;
+    if (!this->private)
+        return -1;
 
-        conf = this->private;
+    conf = this->private;
 
-        client_id = gf_deitransform(this, y);
+    client_id = gf_deitransform(this, y);
 
-        subvol = dht_get_subvol_from_id(this, client_id);
+    subvol = dht_get_subvol_from_id(this, client_id);
 
-        if (!subvol)
-                subvol = conf->subvolumes[0];
+    if (!subvol)
+        subvol = conf->subvolumes[0];
 
-        if (subvol_p)
-                *subvol_p = subvol;
+    if (subvol_p)
+        *subvol_p = subvol;
 
-        return 0;
+    return 0;
 }
 
 void
-dht_local_wipe (xlator_t *this, dht_local_t *local)
+dht_local_wipe(xlator_t *this, dht_local_t *local)
 {
-        int i = 0;
+    int i = 0;
 
-        if (!local)
-                return;
+    if (!local)
+        return;
 
-        loc_wipe (&local->loc);
-        loc_wipe (&local->loc2);
-        loc_wipe (&local->loc2_copy);
+    loc_wipe(&local->loc);
+    loc_wipe(&local->loc2);
+    loc_wipe(&local->loc2_copy);
 
-        if (local->xattr)
-                dict_unref (local->xattr);
+    if (local->xattr)
+        dict_unref(local->xattr);
 
-        if (local->inode)
-                inode_unref (local->inode);
+    if (local->inode)
+        inode_unref(local->inode);
 
-        if (local->layout) {
-                dht_layout_unref (this, local->layout);
-                local->layout = NULL;
-        }
+    if (local->layout) {
+        dht_layout_unref(this, local->layout);
+        local->layout = NULL;
+    }
 
-        loc_wipe (&local->linkfile.loc);
+    loc_wipe(&local->linkfile.loc);
 
-        if (local->linkfile.xattr)
-                dict_unref (local->linkfile.xattr);
+    if (local->linkfile.xattr)
+        dict_unref(local->linkfile.xattr);
 
-        if (local->linkfile.inode)
-                inode_unref (local->linkfile.inode);
+    if (local->linkfile.inode)
+        inode_unref(local->linkfile.inode);
 
-        if (local->fd) {
-                fd_unref (local->fd);
-                local->fd = NULL;
-        }
+    if (local->fd) {
+        fd_unref(local->fd);
+        local->fd = NULL;
+    }
 
-        if (local->params) {
-                dict_unref (local->params);
-                local->params = NULL;
-        }
+    if (local->params) {
+        dict_unref(local->params);
+        local->params = NULL;
+    }
 
-        if (local->xattr_req)
-                dict_unref (local->xattr_req);
-        if (local->mds_xattr)
-                dict_unref (local->mds_xattr);
-        if (local->xdata)
-                dict_unref (local->xdata);
+    if (local->xattr_req)
+        dict_unref(local->xattr_req);
+    if (local->mds_xattr)
+        dict_unref(local->mds_xattr);
+    if (local->xdata)
+        dict_unref(local->xdata);
 
-        if (local->selfheal.layout) {
-                dht_layout_unref (this, local->selfheal.layout);
-                local->selfheal.layout = NULL;
-        }
+    if (local->selfheal.layout) {
+        dht_layout_unref(this, local->selfheal.layout);
+        local->selfheal.layout = NULL;
+    }
 
-        if (local->selfheal.refreshed_layout) {
-                dht_layout_unref (this, local->selfheal.refreshed_layout);
-                local->selfheal.refreshed_layout = NULL;
-        }
+    if (local->selfheal.refreshed_layout) {
+        dht_layout_unref(this, local->selfheal.refreshed_layout);
+        local->selfheal.refreshed_layout = NULL;
+    }
 
-        for (i = 0; i < 2; i++) {
-                dht_lock_array_free (local->lock[i].ns.parent_layout.locks,
-                                     local->lock[i].ns.parent_layout.lk_count);
+    for (i = 0; i < 2; i++) {
+        dht_lock_array_free(local->lock[i].ns.parent_layout.locks,
+                            local->lock[i].ns.parent_layout.lk_count);
 
-                GF_FREE (local->lock[i].ns.parent_layout.locks);
+        GF_FREE(local->lock[i].ns.parent_layout.locks);
 
-                dht_lock_array_free (local->lock[i].ns.directory_ns.locks,
-                                     local->lock[i].ns.directory_ns.lk_count);
-                GF_FREE (local->lock[i].ns.directory_ns.locks);
-        }
+        dht_lock_array_free(local->lock[i].ns.directory_ns.locks,
+                            local->lock[i].ns.directory_ns.lk_count);
+        GF_FREE(local->lock[i].ns.directory_ns.locks);
+    }
 
-        GF_FREE (local->key);
+    GF_FREE(local->key);
 
-        if (local->rebalance.xdata)
-                dict_unref (local->rebalance.xdata);
+    if (local->rebalance.xdata)
+        dict_unref(local->rebalance.xdata);
 
-        if (local->rebalance.xattr)
-                dict_unref (local->rebalance.xattr);
+    if (local->rebalance.xattr)
+        dict_unref(local->rebalance.xattr);
 
-        if (local->rebalance.dict)
-                dict_unref (local->rebalance.dict);
+    if (local->rebalance.dict)
+        dict_unref(local->rebalance.dict);
 
-        GF_FREE (local->rebalance.vector);
+    GF_FREE(local->rebalance.vector);
 
-        if (local->rebalance.iobref)
-                iobref_unref (local->rebalance.iobref);
+    if (local->rebalance.iobref)
+        iobref_unref(local->rebalance.iobref);
 
-        if (local->stub) {
-                call_stub_destroy (local->stub);
-                local->stub = NULL;
-        }
+    if (local->stub) {
+        call_stub_destroy(local->stub);
+        local->stub = NULL;
+    }
 
-        if (local->ret_cache)
-                GF_FREE (local->ret_cache);
+    if (local->ret_cache)
+        GF_FREE(local->ret_cache);
 
-        mem_put (local);
+    mem_put(local);
 }
 
-
 dht_local_t *
-dht_local_init (call_frame_t *frame, loc_t *loc, fd_t *fd, glusterfs_fop_t fop)
+dht_local_init(call_frame_t *frame, loc_t *loc, fd_t *fd, glusterfs_fop_t fop)
 {
-        dht_local_t *local = NULL;
-        inode_t     *inode = NULL;
-        int          ret   = 0;
+    dht_local_t *local = NULL;
+    inode_t *inode = NULL;
+    int ret = 0;
 
-        local = mem_get0 (THIS->local_pool);
-        if (!local)
-                goto out;
+    local = mem_get0(THIS->local_pool);
+    if (!local)
+        goto out;
 
-        if (loc) {
-                ret = loc_copy (&local->loc, loc);
-                if (ret)
-                        goto out;
+    if (loc) {
+        ret = loc_copy(&local->loc, loc);
+        if (ret)
+            goto out;
 
-                inode = loc->inode;
-        }
+        inode = loc->inode;
+    }
 
-        if (fd) {
-                local->fd = fd_ref (fd);
-                if (!inode)
-                        inode = fd->inode;
-        }
+    if (fd) {
+        local->fd = fd_ref(fd);
+        if (!inode)
+            inode = fd->inode;
+    }
 
-        local->op_ret   = -1;
-        local->op_errno = EUCLEAN;
-        local->fop      = fop;
+    local->op_ret = -1;
+    local->op_errno = EUCLEAN;
+    local->fop = fop;
 
-        if (inode) {
-                local->layout   = dht_layout_get (frame->this, inode);
-                local->cached_subvol = dht_subvol_get_cached (frame->this,
-                                                              inode);
-        }
+    if (inode) {
+        local->layout = dht_layout_get(frame->this, inode);
+        local->cached_subvol = dht_subvol_get_cached(frame->this, inode);
+    }
 
-        frame->local = local;
+    frame->local = local;
 
 out:
-        if (ret) {
-                if (local)
-                        mem_put (local);
-                local = NULL;
-        }
-        return local;
+    if (ret) {
+        if (local)
+            mem_put(local);
+        local = NULL;
+    }
+    return local;
 }
 
 xlator_t *
-dht_first_up_subvol (xlator_t *this)
+dht_first_up_subvol(xlator_t *this)
 {
-        dht_conf_t *conf = NULL;
-        xlator_t   *child = NULL;
-        int         i = 0;
-        time_t      time = 0;
+    dht_conf_t *conf = NULL;
+    xlator_t *child = NULL;
+    int i = 0;
+    time_t time = 0;
 
-        conf = this->private;
-        if (!conf)
-                goto out;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        LOCK (&conf->subvolume_lock);
-        {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (conf->subvol_up_time[i]) {
-                                if (!time) {
-                                        time = conf->subvol_up_time[i];
-                                        child = conf->subvolumes[i];
-                                } else if (time > conf->subvol_up_time[i]) {
-                                        time  = conf->subvol_up_time[i];
-                                        child = conf->subvolumes[i];
-                                }
-                        }
+    LOCK(&conf->subvolume_lock);
+    {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->subvol_up_time[i]) {
+                if (!time) {
+                    time = conf->subvol_up_time[i];
+                    child = conf->subvolumes[i];
+                } else if (time > conf->subvol_up_time[i]) {
+                    time = conf->subvol_up_time[i];
+                    child = conf->subvolumes[i];
                 }
+            }
         }
-        UNLOCK (&conf->subvolume_lock);
+    }
+    UNLOCK(&conf->subvolume_lock);
 
 out:
-        return child;
+    return child;
 }
 
 xlator_t *
-dht_last_up_subvol (xlator_t *this)
+dht_last_up_subvol(xlator_t *this)
 {
-        dht_conf_t *conf = NULL;
-        xlator_t   *child = NULL;
-        int         i = 0;
+    dht_conf_t *conf = NULL;
+    xlator_t *child = NULL;
+    int i = 0;
 
-        conf = this->private;
-        if (!conf)
-                goto out;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        LOCK (&conf->subvolume_lock);
-        {
-                for (i = conf->subvolume_cnt-1; i >= 0; i--) {
-                        if (conf->subvolume_status[i]) {
-                                child = conf->subvolumes[i];
-                                break;
-                        }
-                }
+    LOCK(&conf->subvolume_lock);
+    {
+        for (i = conf->subvolume_cnt - 1; i >= 0; i--) {
+            if (conf->subvolume_status[i]) {
+                child = conf->subvolumes[i];
+                break;
+            }
         }
-        UNLOCK (&conf->subvolume_lock);
+    }
+    UNLOCK(&conf->subvolume_lock);
 
 out:
-        return child;
+    return child;
 }
 
 xlator_t *
-dht_subvol_get_hashed (xlator_t *this, loc_t *loc)
+dht_subvol_get_hashed(xlator_t *this, loc_t *loc)
 {
-        dht_layout_t *layout = NULL;
-        xlator_t     *subvol = NULL;
-        dht_conf_t *conf = NULL;
-        dht_methods_t *methods = NULL;
+    dht_layout_t *layout = NULL;
+    xlator_t *subvol = NULL;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
 
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, loc, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, loc, out);
 
-        conf = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, out);
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, out);
 
-        methods = &(conf->methods);
+    methods = &(conf->methods);
 
-        if (__is_root_gfid (loc->gfid)) {
-                subvol = dht_first_up_subvol (this);
-                goto out;
-        }
+    if (__is_root_gfid(loc->gfid)) {
+        subvol = dht_first_up_subvol(this);
+        goto out;
+    }
 
-        GF_VALIDATE_OR_GOTO (this->name, loc->parent, out);
-        GF_VALIDATE_OR_GOTO (this->name, loc->name, out);
+    GF_VALIDATE_OR_GOTO(this->name, loc->parent, out);
+    GF_VALIDATE_OR_GOTO(this->name, loc->name, out);
 
-        layout = dht_layout_get (this, loc->parent);
+    layout = dht_layout_get(this, loc->parent);
 
-        if (!layout) {
-                gf_msg_debug (this->name, 0,
-                              "Missing layout. path=%s, parent gfid =%s",
-                              loc->path, uuid_utoa (loc->parent->gfid));
-                goto out;
-        }
+    if (!layout) {
+        gf_msg_debug(this->name, 0, "Missing layout. path=%s, parent gfid =%s",
+                     loc->path, uuid_utoa(loc->parent->gfid));
+        goto out;
+    }
 
-        subvol = methods->layout_search (this, layout, loc->name);
+    subvol = methods->layout_search(this, layout, loc->name);
 
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "No hashed subvolume for path=%s",
-                              loc->path);
-                goto out;
-        }
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "No hashed subvolume for path=%s",
+                     loc->path);
+        goto out;
+    }
 
 out:
-        if (layout) {
-                dht_layout_unref (this, layout);
-        }
+    if (layout) {
+        dht_layout_unref(this, layout);
+    }
 
-        return subvol;
+    return subvol;
 }
 
-
 xlator_t *
-dht_subvol_get_cached (xlator_t *this, inode_t *inode)
+dht_subvol_get_cached(xlator_t *this, inode_t *inode)
 {
-        dht_layout_t *layout = NULL;
-        xlator_t     *subvol = NULL;
+    dht_layout_t *layout = NULL;
+    xlator_t *subvol = NULL;
 
-        GF_VALIDATE_OR_GOTO (this->name, this, out);
-        GF_VALIDATE_OR_GOTO (this->name, inode, out);
+    GF_VALIDATE_OR_GOTO(this->name, this, out);
+    GF_VALIDATE_OR_GOTO(this->name, inode, out);
 
-        layout = dht_layout_get (this, inode);
+    layout = dht_layout_get(this, inode);
 
-        if (!layout) {
-                goto out;
-        }
+    if (!layout) {
+        goto out;
+    }
 
-        subvol = layout->list[0].xlator;
+    subvol = layout->list[0].xlator;
 
 out:
-        if (layout) {
-                dht_layout_unref (this, layout);
-        }
+    if (layout) {
+        dht_layout_unref(this, layout);
+    }
 
-        return subvol;
+    return subvol;
 }
 
-
 xlator_t *
-dht_subvol_next (xlator_t *this, xlator_t *prev)
+dht_subvol_next(xlator_t *this, xlator_t *prev)
 {
-        dht_conf_t *conf = NULL;
-        int         i = 0;
-        xlator_t   *next = NULL;
+    dht_conf_t *conf = NULL;
+    int i = 0;
+    xlator_t *next = NULL;
 
-        conf = this->private;
-        if (!conf)
-                goto out;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->subvolumes[i] == prev) {
-                        if ((i + 1) < conf->subvolume_cnt)
-                                next = conf->subvolumes[i + 1];
-                        break;
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->subvolumes[i] == prev) {
+            if ((i + 1) < conf->subvolume_cnt)
+                next = conf->subvolumes[i + 1];
+            break;
         }
+    }
 
 out:
-        return next;
+    return next;
 }
 
 /* This func wraps around, if prev is actually the last subvol.
  */
 xlator_t *
-dht_subvol_next_available (xlator_t *this, xlator_t *prev)
+dht_subvol_next_available(xlator_t *this, xlator_t *prev)
 {
-        dht_conf_t *conf = NULL;
-        int         i = 0;
-        xlator_t   *next = NULL;
+    dht_conf_t *conf = NULL;
+    int i = 0;
+    xlator_t *next = NULL;
 
-        conf = this->private;
-        if (!conf)
-                goto out;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->subvolumes[i] == prev) {
-                        /* if prev is last in conf->subvolumes, then wrap
-                         * around.
-                         */
-                        if ((i + 1) < conf->subvolume_cnt) {
-                                next = conf->subvolumes[i + 1];
-                        } else {
-                                next = conf->subvolumes[0];
-                        }
-                        break;
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->subvolumes[i] == prev) {
+            /* if prev is last in conf->subvolumes, then wrap
+             * around.
+             */
+            if ((i + 1) < conf->subvolume_cnt) {
+                next = conf->subvolumes[i + 1];
+            } else {
+                next = conf->subvolumes[0];
+            }
+            break;
         }
+    }
 
 out:
-        return next;
+    return next;
 }
 int
-dht_subvol_cnt (xlator_t *this, xlator_t *subvol)
+dht_subvol_cnt(xlator_t *this, xlator_t *subvol)
 {
-        int i = 0;
-        int ret = -1;
-        dht_conf_t *conf = NULL;
+    int i = 0;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
 
-        conf = this->private;
-        if (!conf)
-                goto out;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (subvol == conf->subvolumes[i]) {
-                        ret = i;
-                        break;
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (subvol == conf->subvolumes[i]) {
+            ret = i;
+            break;
         }
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
+#define set_if_greater(a, b)                                                   \
+    do {                                                                       \
+        if ((a) < (b))                                                         \
+            (a) = (b);                                                         \
+    } while (0)
 
-#define set_if_greater(a, b) do {               \
-                if ((a) < (b))                  \
-                        (a) = (b);              \
-        } while (0)
-
-
-#define set_if_greater_time(a, an, b, bn) do {                          \
-                if (((a) < (b)) || (((a) == (b)) && ((an) < (bn)))){    \
-                        (a) = (b);                                      \
-                        (an) = (bn);                                    \
-                }                                                       \
-        } while (0)                                                     \
-
+#define set_if_greater_time(a, an, b, bn)                                      \
+    do {                                                                       \
+        if (((a) < (b)) || (((a) == (b)) && ((an) < (bn)))) {                  \
+            (a) = (b);                                                         \
+            (an) = (bn);                                                       \
+        }                                                                      \
+    } while (0)
 
 int
-dht_iatt_merge (xlator_t *this, struct iatt *to, struct iatt *from)
+dht_iatt_merge(xlator_t *this, struct iatt *to, struct iatt *from)
 {
-        if (!from || !to)
-                return 0;
-
-        to->ia_dev      = from->ia_dev;
-
-        gf_uuid_copy (to->ia_gfid, from->ia_gfid);
-
-        to->ia_ino      = from->ia_ino;
-        to->ia_prot     = from->ia_prot;
-        to->ia_type     = from->ia_type;
-        to->ia_nlink    = from->ia_nlink;
-        to->ia_rdev     = from->ia_rdev;
-        to->ia_size    += from->ia_size;
-        to->ia_blksize  = from->ia_blksize;
-        to->ia_blocks  += from->ia_blocks;
-
-        if (IA_ISDIR (from->ia_type)) {
-                to->ia_blocks = DHT_DIR_STAT_BLOCKS;
-                to->ia_size = DHT_DIR_STAT_SIZE;
-        }
-        set_if_greater (to->ia_uid, from->ia_uid);
-        set_if_greater (to->ia_gid, from->ia_gid);
-
-        set_if_greater_time(to->ia_atime, to->ia_atime_nsec,
-                            from->ia_atime, from->ia_atime_nsec);
-        set_if_greater_time (to->ia_mtime, to->ia_mtime_nsec,
-                             from->ia_mtime, from->ia_mtime_nsec);
-        set_if_greater_time (to->ia_ctime, to->ia_ctime_nsec,
-                             from->ia_ctime, from->ia_ctime_nsec);
-
+    if (!from || !to)
         return 0;
+
+    to->ia_dev = from->ia_dev;
+
+    gf_uuid_copy(to->ia_gfid, from->ia_gfid);
+
+    to->ia_ino = from->ia_ino;
+    to->ia_prot = from->ia_prot;
+    to->ia_type = from->ia_type;
+    to->ia_nlink = from->ia_nlink;
+    to->ia_rdev = from->ia_rdev;
+    to->ia_size += from->ia_size;
+    to->ia_blksize = from->ia_blksize;
+    to->ia_blocks += from->ia_blocks;
+
+    if (IA_ISDIR(from->ia_type)) {
+        to->ia_blocks = DHT_DIR_STAT_BLOCKS;
+        to->ia_size = DHT_DIR_STAT_SIZE;
+    }
+    set_if_greater(to->ia_uid, from->ia_uid);
+    set_if_greater(to->ia_gid, from->ia_gid);
+
+    set_if_greater_time(to->ia_atime, to->ia_atime_nsec, from->ia_atime,
+                        from->ia_atime_nsec);
+    set_if_greater_time(to->ia_mtime, to->ia_mtime_nsec, from->ia_mtime,
+                        from->ia_mtime_nsec);
+    set_if_greater_time(to->ia_ctime, to->ia_ctime_nsec, from->ia_ctime,
+                        from->ia_ctime_nsec);
+
+    return 0;
 }
 
 int
-dht_build_child_loc (xlator_t *this, loc_t *child, loc_t *parent, char *name)
+dht_build_child_loc(xlator_t *this, loc_t *child, loc_t *parent, char *name)
 {
-        if (!child) {
-                goto err;
-        }
+    if (!child) {
+        goto err;
+    }
 
-        if (strcmp (parent->path, "/") == 0)
-                gf_asprintf ((char **)&child->path, "/%s", name);
-        else
-                gf_asprintf ((char **)&child->path, "%s/%s", parent->path, name);
+    if (strcmp(parent->path, "/") == 0)
+        gf_asprintf((char **)&child->path, "/%s", name);
+    else
+        gf_asprintf((char **)&child->path, "%s/%s", parent->path, name);
 
-        if (!child->path) {
-                goto err;
-        }
+    if (!child->path) {
+        goto err;
+    }
 
-        child->name = strrchr (child->path, '/');
-        if (child->name)
-                child->name++;
+    child->name = strrchr(child->path, '/');
+    if (child->name)
+        child->name++;
 
-        child->parent = inode_ref (parent->inode);
-        child->inode = inode_new (parent->inode->table);
+    child->parent = inode_ref(parent->inode);
+    child->inode = inode_new(parent->inode->table);
 
-        if (!child->inode) {
-                goto err;
-        }
+    if (!child->inode) {
+        goto err;
+    }
 
-        return 0;
+    return 0;
 err:
-        if (child) {
-            loc_wipe (child);
-        }
-        return -1;
+    if (child) {
+        loc_wipe(child);
+    }
+    return -1;
 }
 
 int
-dht_init_local_subvolumes (xlator_t *this, dht_conf_t *conf)
+dht_init_local_subvolumes(xlator_t *this, dht_conf_t *conf)
 {
-        xlator_list_t *subvols = NULL;
-        int            cnt = 0;
+    xlator_list_t *subvols = NULL;
+    int cnt = 0;
 
-        if (!conf)
-                return -1;
+    if (!conf)
+        return -1;
 
-        for (subvols = this->children; subvols; subvols = subvols->next)
-                cnt++;
+    for (subvols = this->children; subvols; subvols = subvols->next)
+        cnt++;
 
-        conf->local_subvols = GF_CALLOC (cnt, sizeof (xlator_t *),
-                                        gf_dht_mt_xlator_t);
+    conf->local_subvols = GF_CALLOC(cnt, sizeof(xlator_t *),
+                                    gf_dht_mt_xlator_t);
 
-        /* FIX FIX : do this dynamically*/
-        conf->local_nodeuuids = GF_CALLOC (cnt,
-                                           sizeof (subvol_nodeuuids_info_t),
-                                           gf_dht_nodeuuids_t);
+    /* FIX FIX : do this dynamically*/
+    conf->local_nodeuuids = GF_CALLOC(cnt, sizeof(subvol_nodeuuids_info_t),
+                                      gf_dht_nodeuuids_t);
 
-        if (!conf->local_subvols || !conf->local_nodeuuids) {
-                return -1;
-        }
+    if (!conf->local_subvols || !conf->local_nodeuuids) {
+        return -1;
+    }
 
-        conf->local_subvols_cnt = 0;
+    conf->local_subvols_cnt = 0;
 
-        return 0;
+    return 0;
 }
 
 int
-dht_init_subvolumes (xlator_t *this, dht_conf_t *conf)
+dht_init_subvolumes(xlator_t *this, dht_conf_t *conf)
 {
-        xlator_list_t *subvols = NULL;
-        int            cnt = 0;
+    xlator_list_t *subvols = NULL;
+    int cnt = 0;
 
-        if (!conf)
-                return -1;
+    if (!conf)
+        return -1;
 
-        for (subvols = this->children; subvols; subvols = subvols->next)
-                cnt++;
+    for (subvols = this->children; subvols; subvols = subvols->next)
+        cnt++;
 
-        conf->subvolumes = GF_CALLOC (cnt, sizeof (xlator_t *),
-                                      gf_dht_mt_xlator_t);
-        if (!conf->subvolumes) {
-                return -1;
-        }
-        conf->subvolume_cnt = cnt;
+    conf->subvolumes = GF_CALLOC(cnt, sizeof(xlator_t *), gf_dht_mt_xlator_t);
+    if (!conf->subvolumes) {
+        return -1;
+    }
+    conf->subvolume_cnt = cnt;
 
-        conf->local_subvols_cnt = 0;
+    conf->local_subvols_cnt = 0;
 
-        dht_set_subvol_range(this);
+    dht_set_subvol_range(this);
 
-        cnt = 0;
-        for (subvols = this->children; subvols; subvols = subvols->next)
-                conf->subvolumes[cnt++] = subvols->xlator;
+    cnt = 0;
+    for (subvols = this->children; subvols; subvols = subvols->next)
+        conf->subvolumes[cnt++] = subvols->xlator;
 
-        conf->subvolume_status = GF_CALLOC (cnt, sizeof (char),
-                                            gf_dht_mt_char);
-        if (!conf->subvolume_status) {
-                return -1;
-        }
+    conf->subvolume_status = GF_CALLOC(cnt, sizeof(char), gf_dht_mt_char);
+    if (!conf->subvolume_status) {
+        return -1;
+    }
 
-        conf->last_event = GF_CALLOC (cnt, sizeof (int),
-                                      gf_dht_mt_char);
-        if (!conf->last_event) {
-                return -1;
-        }
+    conf->last_event = GF_CALLOC(cnt, sizeof(int), gf_dht_mt_char);
+    if (!conf->last_event) {
+        return -1;
+    }
 
-        conf->subvol_up_time = GF_CALLOC (cnt, sizeof (time_t),
-                                          gf_dht_mt_subvol_time);
-        if (!conf->subvol_up_time) {
-                return -1;
-        }
+    conf->subvol_up_time = GF_CALLOC(cnt, sizeof(time_t),
+                                     gf_dht_mt_subvol_time);
+    if (!conf->subvol_up_time) {
+        return -1;
+    }
 
-        conf->du_stats = GF_CALLOC (conf->subvolume_cnt, sizeof (dht_du_t),
-                                    gf_dht_mt_dht_du_t);
-        if (!conf->du_stats) {
-                return -1;
-        }
+    conf->du_stats = GF_CALLOC(conf->subvolume_cnt, sizeof(dht_du_t),
+                               gf_dht_mt_dht_du_t);
+    if (!conf->du_stats) {
+        return -1;
+    }
 
-        conf->decommissioned_bricks = GF_CALLOC (cnt, sizeof (xlator_t *),
-                                                 gf_dht_mt_xlator_t);
-        if (!conf->decommissioned_bricks) {
-                return -1;
-        }
+    conf->decommissioned_bricks = GF_CALLOC(cnt, sizeof(xlator_t *),
+                                            gf_dht_mt_xlator_t);
+    if (!conf->decommissioned_bricks) {
+        return -1;
+    }
 
-        return 0;
+    return 0;
 }
 
-
 /*
  op_ret values :
   0 : Success.
@@ -1276,270 +1210,263 @@ dht_init_subvolumes (xlator_t *this, dht_conf_t *conf)
 */
 
 static int
-dht_migration_complete_check_done (int op_ret, call_frame_t *frame, void *data)
+dht_migration_complete_check_done(int op_ret, call_frame_t *frame, void *data)
 {
-        dht_local_t *local  = NULL;
-        xlator_t    *subvol = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (op_ret != 0)
-                goto out;
+    if (op_ret != 0)
+        goto out;
 
-        if (local->cached_subvol == NULL) {
-                local->op_errno = EINVAL;
-                goto out;
-        }
+    if (local->cached_subvol == NULL) {
+        local->op_errno = EINVAL;
+        goto out;
+    }
 
-        subvol = local->cached_subvol;
+    subvol = local->cached_subvol;
 
 out:
-        local->rebalance.target_op_fn (THIS, subvol, frame, op_ret);
+    local->rebalance.target_op_fn(THIS, subvol, frame, op_ret);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_migration_complete_check_task (void *data)
+dht_migration_complete_check_task(void *data)
 {
-        int                 ret         = -1;
-        xlator_t           *src_node    = NULL;
-        xlator_t           *dst_node    = NULL, *linkto_target = NULL;
-        dht_local_t        *local       = NULL;
-        dict_t             *dict        = NULL;
-        struct iatt         stbuf       = {0,};
-        xlator_t           *this        = NULL;
-        call_frame_t       *frame       = NULL;
-        loc_t               tmp_loc     = {0,};
-        char               *path        = NULL;
-        dht_conf_t         *conf        = NULL;
-        inode_t            *inode       = NULL;
-        fd_t               *iter_fd     = NULL;
-        fd_t               *tmp         = NULL;
-        uint64_t            tmp_miginfo = 0;
-        dht_migrate_info_t *miginfo     = NULL;
-        int                 open_failed = 0;
-
-        this  = THIS;
-        frame = data;
-        local = frame->local;
-        conf = this->private;
-
-        src_node = local->cached_subvol;
-
-        if (!local->loc.inode && !local->fd) {
-                local->op_errno = EINVAL;
-                goto out;
-        }
-
-        inode = (!local->fd) ? local->loc.inode : local->fd->inode;
-
-        /* getxattr on cached_subvol for 'linkto' value. Do path based getxattr
-         * as root:root. If a fd is already open, access check won't be done*/
-
-        if (!local->loc.inode) {
-                ret = syncop_fgetxattr (src_node, local->fd, &dict,
-                                        conf->link_xattr_name, NULL, NULL);
-        } else {
-                SYNCTASK_SETID (0, 0);
-                ret = syncop_getxattr (src_node, &local->loc, &dict,
-                                       conf->link_xattr_name, NULL, NULL);
-                SYNCTASK_SETID (frame->root->uid, frame->root->gid);
-        }
-
-
-        /*
-         * Each DHT xlator layer has its own name for the linkto xattr.
-         * If the file mode bits indicate the the file is being migrated but
-         * this layer's linkto xattr is not set, it means that another
-         * DHT layer is migrating the file. In this case, return 1 so
-         * the mode bits can be passed on to the higher layer for appropriate
-         * action.
-         */
-        if (-ret == ENODATA) {
-                /* This DHT translator is not migrating this file */
-
-                ret = inode_ctx_reset1 (inode, this, &tmp_miginfo);
-                if (tmp_miginfo) {
-
-                        /* This can be a problem if the file was
-                         * migrated by two different layers. Raise
-                         * a warning here.
-                         */
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_HAS_MIGINFO,
-                                "%s: Found miginfo in the inode ctx",
-                                tmp_loc.path ? tmp_loc.path :
-                                uuid_utoa (tmp_loc.gfid));
-
-                        miginfo = (void *)tmp_miginfo;
-                        GF_REF_PUT (miginfo);
-                }
-                ret = 1;
-                goto out;
-        }
+    int ret = -1;
+    xlator_t *src_node = NULL;
+    xlator_t *dst_node = NULL, *linkto_target = NULL;
+    dht_local_t *local = NULL;
+    dict_t *dict = NULL;
+    struct iatt stbuf = {
+        0,
+    };
+    xlator_t *this = NULL;
+    call_frame_t *frame = NULL;
+    loc_t tmp_loc = {
+        0,
+    };
+    char *path = NULL;
+    dht_conf_t *conf = NULL;
+    inode_t *inode = NULL;
+    fd_t *iter_fd = NULL;
+    fd_t *tmp = NULL;
+    uint64_t tmp_miginfo = 0;
+    dht_migrate_info_t *miginfo = NULL;
+    int open_failed = 0;
+
+    this = THIS;
+    frame = data;
+    local = frame->local;
+    conf = this->private;
+
+    src_node = local->cached_subvol;
+
+    if (!local->loc.inode && !local->fd) {
+        local->op_errno = EINVAL;
+        goto out;
+    }
 
-        if (!ret)
-                linkto_target = dht_linkfile_subvol (this, NULL, NULL, dict);
+    inode = (!local->fd) ? local->loc.inode : local->fd->inode;
 
-        if (local->loc.inode) {
-                loc_copy (&tmp_loc, &local->loc);
-        } else {
-                tmp_loc.inode = inode_ref (inode);
-                gf_uuid_copy (tmp_loc.gfid, inode->gfid);
-        }
+    /* getxattr on cached_subvol for 'linkto' value. Do path based getxattr
+     * as root:root. If a fd is already open, access check won't be done*/
 
-        ret = syncop_lookup (this, &tmp_loc, &stbuf, 0, 0, 0);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_FILE_LOOKUP_FAILED,
-                        "%s: failed to lookup the file on %s",
-                        tmp_loc.path ? tmp_loc.path : uuid_utoa (tmp_loc.gfid),
-                        this->name);
-                local->op_errno = -ret;
-                ret = -1;
-                goto out;
-        }
+    if (!local->loc.inode) {
+        ret = syncop_fgetxattr(src_node, local->fd, &dict,
+                               conf->link_xattr_name, NULL, NULL);
+    } else {
+        SYNCTASK_SETID(0, 0);
+        ret = syncop_getxattr(src_node, &local->loc, &dict,
+                              conf->link_xattr_name, NULL, NULL);
+        SYNCTASK_SETID(frame->root->uid, frame->root->gid);
+    }
+
+    /*
+     * Each DHT xlator layer has its own name for the linkto xattr.
+     * If the file mode bits indicate the the file is being migrated but
+     * this layer's linkto xattr is not set, it means that another
+     * DHT layer is migrating the file. In this case, return 1 so
+     * the mode bits can be passed on to the higher layer for appropriate
+     * action.
+     */
+    if (-ret == ENODATA) {
+        /* This DHT translator is not migrating this file */
+
+        ret = inode_ctx_reset1(inode, this, &tmp_miginfo);
+        if (tmp_miginfo) {
+            /* This can be a problem if the file was
+             * migrated by two different layers. Raise
+             * a warning here.
+             */
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_HAS_MIGINFO,
+                   "%s: Found miginfo in the inode ctx",
+                   tmp_loc.path ? tmp_loc.path : uuid_utoa(tmp_loc.gfid));
+
+            miginfo = (void *)tmp_miginfo;
+            GF_REF_PUT(miginfo);
+        }
+        ret = 1;
+        goto out;
+    }
+
+    if (!ret)
+        linkto_target = dht_linkfile_subvol(this, NULL, NULL, dict);
+
+    if (local->loc.inode) {
+        loc_copy(&tmp_loc, &local->loc);
+    } else {
+        tmp_loc.inode = inode_ref(inode);
+        gf_uuid_copy(tmp_loc.gfid, inode->gfid);
+    }
+
+    ret = syncop_lookup(this, &tmp_loc, &stbuf, 0, 0, 0);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_FILE_LOOKUP_FAILED,
+               "%s: failed to lookup the file on %s",
+               tmp_loc.path ? tmp_loc.path : uuid_utoa(tmp_loc.gfid),
+               this->name);
+        local->op_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    dst_node = dht_subvol_get_cached(this, tmp_loc.inode);
+    if (linkto_target && dst_node != linkto_target) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_INVALID_LINKFILE,
+               "linkto target (%s) is "
+               "different from cached-subvol (%s). Treating %s as "
+               "destination subvol",
+               linkto_target->name, dst_node->name, dst_node->name);
+    }
+
+    if (gf_uuid_compare(stbuf.ia_gfid, tmp_loc.inode->gfid)) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_GFID_MISMATCH,
+               "%s: gfid different on the target file on %s",
+               tmp_loc.path ? tmp_loc.path : uuid_utoa(tmp_loc.gfid),
+               dst_node->name);
+        ret = -1;
+        local->op_errno = EIO;
+        goto out;
+    }
 
-        dst_node = dht_subvol_get_cached (this, tmp_loc.inode);
-        if (linkto_target && dst_node != linkto_target) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_INVALID_LINKFILE,
-                        "linkto target (%s) is "
-                        "different from cached-subvol (%s). Treating %s as "
-                        "destination subvol", linkto_target->name,
-                        dst_node->name, dst_node->name);
-        }
+    /* update local. A layout is set in inode-ctx in lookup already */
 
-        if (gf_uuid_compare (stbuf.ia_gfid, tmp_loc.inode->gfid)) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_GFID_MISMATCH,
-                                "%s: gfid different on the target file on %s",
-                                tmp_loc.path ? tmp_loc.path :
-                                uuid_utoa (tmp_loc.gfid), dst_node->name);
-                ret = -1;
-                local->op_errno = EIO;
-                goto out;
-        }
+    dht_layout_unref(this, local->layout);
 
-        /* update local. A layout is set in inode-ctx in lookup already */
+    local->layout = dht_layout_get(frame->this, inode);
+    local->cached_subvol = dst_node;
 
-        dht_layout_unref (this, local->layout);
+    ret = 0;
 
-        local->layout   = dht_layout_get (frame->this, inode);
-        local->cached_subvol = dst_node;
+    /* once we detect the migration complete, the inode-ctx2 is no more
+       required.. delete the ctx and also, it means, open() already
+       done on all the fd of inode */
+    ret = inode_ctx_reset1(inode, this, &tmp_miginfo);
+    if (tmp_miginfo) {
+        miginfo = (void *)tmp_miginfo;
+        GF_REF_PUT(miginfo);
+        goto out;
+    }
+
+    /* perform 'open()' on all the fd's present on the inode */
+    if (tmp_loc.path == NULL) {
+        inode_path(inode, NULL, &path);
+        if (path)
+            tmp_loc.path = path;
+    }
+
+    LOCK(&inode->lock);
+
+    if (list_empty(&inode->fd_list))
+        goto unlock;
+
+    /* perform open as root:root. There is window between linkfile
+     * creation(root:root) and setattr with the correct uid/gid
+     */
+    SYNCTASK_SETID(0, 0);
+
+    /* It's possible that we are the last user of iter_fd after each
+     * iteration. In this case the fd_unref() of iter_fd at the end of
+     * the loop will cause the destruction of the fd. So we need to
+     * iterate the list safely because iter_fd cannot be trusted.
+     */
+    list_for_each_entry_safe(iter_fd, tmp, &inode->fd_list, inode_list)
+    {
+        if (fd_is_anonymous(iter_fd))
+            continue;
+
+        if (dht_fd_open_on_dst(this, iter_fd, dst_node))
+            continue;
+
+        /* We need to release the inode->lock before calling
+         * syncop_open() to avoid possible deadlocks. However this
+         * can cause the iter_fd to be released by other threads.
+         * To avoid this, we take a reference before releasing the
+         * lock.
+         */
+        __fd_ref(iter_fd);
 
-        ret = 0;
+        UNLOCK(&inode->lock);
 
-        /* once we detect the migration complete, the inode-ctx2 is no more
-           required.. delete the ctx and also, it means, open() already
-           done on all the fd of inode */
-        ret = inode_ctx_reset1 (inode, this, &tmp_miginfo);
-        if (tmp_miginfo) {
-                miginfo = (void *)tmp_miginfo;
-                GF_REF_PUT (miginfo);
-                goto out;
+        /* flags for open are stripped down to allow following the
+         * new location of the file, otherwise we can get EEXIST or
+         * truncate the file again as rebalance is moving the data */
+        ret = syncop_open(dst_node, &tmp_loc,
+                          (iter_fd->flags & ~(O_CREAT | O_EXCL | O_TRUNC)),
+                          iter_fd, NULL, NULL);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret,
+                   DHT_MSG_OPEN_FD_ON_DST_FAILED,
+                   "failed"
+                   " to open the fd"
+                   " (%p, flags=0%o) on file %s @ %s",
+                   iter_fd, iter_fd->flags, path, dst_node->name);
+
+            open_failed = 1;
+            local->op_errno = -ret;
+            ret = -1;
+        } else {
+            dht_fd_ctx_set(this, iter_fd, dst_node);
         }
 
-        /* perform 'open()' on all the fd's present on the inode */
-        if (tmp_loc.path == NULL) {
-                inode_path (inode, NULL, &path);
-                if (path)
-                        tmp_loc.path = path;
-        }
+        fd_unref(iter_fd);
 
         LOCK(&inode->lock);
+    }
 
-        if (list_empty (&inode->fd_list))
-                goto unlock;
-
-        /* perform open as root:root. There is window between linkfile
-         * creation(root:root) and setattr with the correct uid/gid
-         */
-        SYNCTASK_SETID(0, 0);
-
-        /* It's possible that we are the last user of iter_fd after each
-         * iteration. In this case the fd_unref() of iter_fd at the end of
-         * the loop will cause the destruction of the fd. So we need to
-         * iterate the list safely because iter_fd cannot be trusted.
-         */
-        list_for_each_entry_safe (iter_fd, tmp, &inode->fd_list, inode_list) {
-
-                if (fd_is_anonymous (iter_fd))
-                        continue;
-
-                if (dht_fd_open_on_dst (this, iter_fd, dst_node))
-                        continue;
-
-                /* We need to release the inode->lock before calling
-                 * syncop_open() to avoid possible deadlocks. However this
-                 * can cause the iter_fd to be released by other threads.
-                 * To avoid this, we take a reference before releasing the
-                 * lock.
-                 */
-                __fd_ref(iter_fd);
-
-                UNLOCK(&inode->lock);
-
-                /* flags for open are stripped down to allow following the
-                 * new location of the file, otherwise we can get EEXIST or
-                 * truncate the file again as rebalance is moving the data */
-                ret = syncop_open (dst_node, &tmp_loc,
-                                   (iter_fd->flags &
-                                   ~(O_CREAT | O_EXCL | O_TRUNC)),
-                                   iter_fd, NULL, NULL);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_OPEN_FD_ON_DST_FAILED, "failed"
-                                " to open the fd"
-                                " (%p, flags=0%o) on file %s @ %s",
-                                iter_fd, iter_fd->flags, path,
-                                dst_node->name);
-
-                        open_failed = 1;
-                        local->op_errno = -ret;
-                        ret = -1;
-                } else {
-                        dht_fd_ctx_set (this, iter_fd, dst_node);
-                }
-
-                fd_unref(iter_fd);
-
-                LOCK(&inode->lock);
-        }
+    SYNCTASK_SETID(frame->root->uid, frame->root->gid);
 
-        SYNCTASK_SETID (frame->root->uid, frame->root->gid);
-
-        if (open_failed) {
-                ret = -1;
-                goto unlock;
-        }
-        ret = 0;
+    if (open_failed) {
+        ret = -1;
+        goto unlock;
+    }
+    ret = 0;
 
 unlock:
-        UNLOCK(&inode->lock);
+    UNLOCK(&inode->lock);
 
 out:
-        if (dict) {
-                dict_unref (dict);
-        }
+    if (dict) {
+        dict_unref(dict);
+    }
 
-        loc_wipe (&tmp_loc);
+    loc_wipe(&tmp_loc);
 
-        return ret;
+    return ret;
 }
 
 int
-dht_rebalance_complete_check (xlator_t *this, call_frame_t *frame)
+dht_rebalance_complete_check(xlator_t *this, call_frame_t *frame)
 {
-        int         ret     = -1;
-
-        ret = synctask_new (this->ctx->env, dht_migration_complete_check_task,
-                            dht_migration_complete_check_done,
-                            frame, frame);
-        return ret;
+    int ret = -1;
 
+    ret = synctask_new(this->ctx->env, dht_migration_complete_check_task,
+                       dht_migration_complete_check_done, frame, frame);
+    return ret;
 }
 
 /* During 'in-progress' state, both nodes should have the file */
@@ -1550,790 +1477,777 @@ dht_rebalance_complete_check (xlator_t *this, call_frame_t *frame)
   1 : File is being migrated but not by this DHT layer.
 */
 static int
-dht_inprogress_check_done (int op_ret, call_frame_t *frame, void *data)
+dht_inprogress_check_done(int op_ret, call_frame_t *frame, void *data)
 {
-        dht_local_t *local      = NULL;
-        xlator_t    *dst_subvol = NULL, *src_subvol = NULL;
-        inode_t     *inode      = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *dst_subvol = NULL, *src_subvol = NULL;
+    inode_t *inode = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (op_ret != 0)
-                goto out;
+    if (op_ret != 0)
+        goto out;
 
-        inode = local->loc.inode ? local->loc.inode : local->fd->inode;
+    inode = local->loc.inode ? local->loc.inode : local->fd->inode;
 
-        dht_inode_ctx_get_mig_info (THIS, inode, &src_subvol, &dst_subvol);
-        if (dht_mig_info_is_invalid (local->cached_subvol,
-                                     src_subvol, dst_subvol)) {
-                dst_subvol = dht_subvol_get_cached (THIS, inode);
-                if (!dst_subvol) {
-                        local->op_errno = EINVAL;
-                        goto out;
-                }
+    dht_inode_ctx_get_mig_info(THIS, inode, &src_subvol, &dst_subvol);
+    if (dht_mig_info_is_invalid(local->cached_subvol, src_subvol, dst_subvol)) {
+        dst_subvol = dht_subvol_get_cached(THIS, inode);
+        if (!dst_subvol) {
+            local->op_errno = EINVAL;
+            goto out;
         }
+    }
 
 out:
-        local->rebalance.target_op_fn (THIS, dst_subvol, frame, op_ret);
+    local->rebalance.target_op_fn(THIS, dst_subvol, frame, op_ret);
 
-        return 0;
+    return 0;
 }
 
 static int
-dht_rebalance_inprogress_task (void *data)
+dht_rebalance_inprogress_task(void *data)
 {
-        int           ret             = -1;
-        xlator_t     *src_node        = NULL;
-        xlator_t     *dst_node        = NULL;
-        dht_local_t  *local           = NULL;
-        dict_t       *dict            = NULL;
-        call_frame_t *frame           = NULL;
-        xlator_t     *this            = NULL;
-        char         *path            = NULL;
-        struct iatt   stbuf           = {0,};
-        loc_t         tmp_loc         = {0,};
-        dht_conf_t   *conf            = NULL;
-        inode_t      *inode           = NULL;
-        fd_t         *iter_fd         = NULL;
-        fd_t         *tmp             = NULL;
-        int           open_failed     = 0;
-        uint64_t      tmp_miginfo     = 0;
-        dht_migrate_info_t *miginfo   = NULL;
-
-
-        this  = THIS;
-        frame = data;
-        local = frame->local;
-        conf = this->private;
-
-        src_node = local->cached_subvol;
-
-        if (!local->loc.inode && !local->fd)
-                goto out;
+    int ret = -1;
+    xlator_t *src_node = NULL;
+    xlator_t *dst_node = NULL;
+    dht_local_t *local = NULL;
+    dict_t *dict = NULL;
+    call_frame_t *frame = NULL;
+    xlator_t *this = NULL;
+    char *path = NULL;
+    struct iatt stbuf = {
+        0,
+    };
+    loc_t tmp_loc = {
+        0,
+    };
+    dht_conf_t *conf = NULL;
+    inode_t *inode = NULL;
+    fd_t *iter_fd = NULL;
+    fd_t *tmp = NULL;
+    int open_failed = 0;
+    uint64_t tmp_miginfo = 0;
+    dht_migrate_info_t *miginfo = NULL;
+
+    this = THIS;
+    frame = data;
+    local = frame->local;
+    conf = this->private;
+
+    src_node = local->cached_subvol;
+
+    if (!local->loc.inode && !local->fd)
+        goto out;
 
-        inode = (!local->fd) ? local->loc.inode : local->fd->inode;
+    inode = (!local->fd) ? local->loc.inode : local->fd->inode;
 
-        /* getxattr on cached_subvol for 'linkto' value. Do path based getxattr
-         * as root:root. If a fd is already open, access check won't be done*/
-        if (local->loc.inode) {
-                SYNCTASK_SETID (0, 0);
-                ret = syncop_getxattr (src_node, &local->loc, &dict,
-                                       conf->link_xattr_name, NULL, NULL);
-                SYNCTASK_SETID (frame->root->uid, frame->root->gid);
-        } else {
-                ret = syncop_fgetxattr (src_node, local->fd, &dict,
-                                        conf->link_xattr_name, NULL, NULL);
-        }
+    /* getxattr on cached_subvol for 'linkto' value. Do path based getxattr
+     * as root:root. If a fd is already open, access check won't be done*/
+    if (local->loc.inode) {
+        SYNCTASK_SETID(0, 0);
+        ret = syncop_getxattr(src_node, &local->loc, &dict,
+                              conf->link_xattr_name, NULL, NULL);
+        SYNCTASK_SETID(frame->root->uid, frame->root->gid);
+    } else {
+        ret = syncop_fgetxattr(src_node, local->fd, &dict,
+                               conf->link_xattr_name, NULL, NULL);
+    }
+
+    /*
+     * Each DHT xlator layer has its own name for the linkto xattr.
+     * If the file mode bits indicate the the file is being migrated but
+     * this layer's linkto xattr is not present, it means that another
+     * DHT layer is migrating the file. In this case, return 1 so
+     * the mode bits can be passed on to the higher layer for appropriate
+     * action.
+     */
+
+    if (-ret == ENODATA) {
+        /* This DHT layer is not migrating this file */
+        ret = inode_ctx_reset1(inode, this, &tmp_miginfo);
+        if (tmp_miginfo) {
+            /* This can be a problem if the file was
+             * migrated by two different layers. Raise
+             * a warning here.
+             */
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_HAS_MIGINFO,
+                   "%s: Found miginfo in the inode ctx",
+                   tmp_loc.path ? tmp_loc.path : uuid_utoa(tmp_loc.gfid));
+            miginfo = (void *)tmp_miginfo;
+            GF_REF_PUT(miginfo);
+        }
+        ret = 1;
+        goto out;
+    }
 
-        /*
-         * Each DHT xlator layer has its own name for the linkto xattr.
-         * If the file mode bits indicate the the file is being migrated but
-         * this layer's linkto xattr is not present, it means that another
-         * DHT layer is migrating the file. In this case, return 1 so
-         * the mode bits can be passed on to the higher layer for appropriate
-         * action.
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_GET_XATTR_FAILED,
+               "%s: failed to get the 'linkto' xattr", local->loc.path);
+        ret = -1;
+        goto out;
+    }
+
+    dst_node = dht_linkfile_subvol(this, NULL, NULL, dict);
+    if (!dst_node) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SUBVOL_NOT_FOUND,
+               "%s: failed to get the 'linkto' xattr from dict",
+               local->loc.path);
+        ret = -1;
+        goto out;
+    }
+
+    local->rebalance.target_node = dst_node;
+
+    if (local->loc.inode) {
+        loc_copy(&tmp_loc, &local->loc);
+    } else {
+        tmp_loc.inode = inode_ref(inode);
+        gf_uuid_copy(tmp_loc.gfid, inode->gfid);
+    }
+
+    /* lookup on dst */
+    ret = syncop_lookup(dst_node, &tmp_loc, &stbuf, NULL, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret,
+               DHT_MSG_FILE_LOOKUP_ON_DST_FAILED,
+               "%s: failed to lookup the file on %s",
+               tmp_loc.path ? tmp_loc.path : uuid_utoa(tmp_loc.gfid),
+               dst_node->name);
+        ret = -1;
+        goto out;
+    }
+
+    if (gf_uuid_compare(stbuf.ia_gfid, tmp_loc.inode->gfid)) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_GFID_MISMATCH,
+               "%s: gfid different on the target file on %s",
+               tmp_loc.path ? tmp_loc.path : uuid_utoa(tmp_loc.gfid),
+               dst_node->name);
+        ret = -1;
+        goto out;
+    }
+    ret = 0;
+
+    if (tmp_loc.path == NULL) {
+        inode_path(inode, NULL, &path);
+        if (path)
+            tmp_loc.path = path;
+    }
+
+    LOCK(&inode->lock);
+
+    if (list_empty(&inode->fd_list))
+        goto unlock;
+
+    /* perform open as root:root. There is window between linkfile
+     * creation(root:root) and setattr with the correct uid/gid
+     */
+    SYNCTASK_SETID(0, 0);
+
+    /* It's possible that we are the last user of iter_fd after each
+     * iteration. In this case the fd_unref() of iter_fd at the end of
+     * the loop will cause the destruction of the fd. So we need to
+     * iterate the list safely because iter_fd cannot be trusted.
+     */
+    list_for_each_entry_safe(iter_fd, tmp, &inode->fd_list, inode_list)
+    {
+        if (fd_is_anonymous(iter_fd))
+            continue;
+
+        if (dht_fd_open_on_dst(this, iter_fd, dst_node))
+            continue;
+
+        /* We need to release the inode->lock before calling
+         * syncop_open() to avoid possible deadlocks. However this
+         * can cause the iter_fd to be released by other threads.
+         * To avoid this, we take a reference before releasing the
+         * lock.
          */
+        __fd_ref(iter_fd);
 
-        if (-ret == ENODATA) {
-                /* This DHT layer is not migrating this file */
-                ret = inode_ctx_reset1 (inode, this, &tmp_miginfo);
-                if (tmp_miginfo) {
-                        /* This can be a problem if the file was
-                         * migrated by two different layers. Raise
-                         * a warning here.
-                         */
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_HAS_MIGINFO,
-                                "%s: Found miginfo in the inode ctx",
-                                tmp_loc.path ? tmp_loc.path :
-                                uuid_utoa (tmp_loc.gfid));
-                        miginfo = (void *)tmp_miginfo;
-                        GF_REF_PUT (miginfo);
-                }
-                ret = 1;
-                goto out;
-        }
+        UNLOCK(&inode->lock);
 
+        /* flags for open are stripped down to allow following the
+         * new location of the file, otherwise we can get EEXIST or
+         * truncate the file again as rebalance is moving the data */
+        ret = syncop_open(dst_node, &tmp_loc,
+                          (iter_fd->flags & ~(O_CREAT | O_EXCL | O_TRUNC)),
+                          iter_fd, NULL, NULL);
         if (ret < 0) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_GET_XATTR_FAILED,
-                        "%s: failed to get the 'linkto' xattr",
-                        local->loc.path);
-                ret = -1;
-                goto out;
-        }
-
-        dst_node = dht_linkfile_subvol (this, NULL, NULL, dict);
-        if (!dst_node) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_SUBVOL_NOT_FOUND,
-                        "%s: failed to get the 'linkto' xattr from dict",
-                        local->loc.path);
-                ret = -1;
-                goto out;
-        }
-
-        local->rebalance.target_node = dst_node;
-
-        if (local->loc.inode) {
-                loc_copy (&tmp_loc, &local->loc);
+            gf_msg(this->name, GF_LOG_ERROR, -ret,
+                   DHT_MSG_OPEN_FD_ON_DST_FAILED,
+                   "failed to send open "
+                   "the fd (%p, flags=0%o) on file %s @ %s",
+                   iter_fd, iter_fd->flags, path, dst_node->name);
+            ret = -1;
+            open_failed = 1;
         } else {
-                tmp_loc.inode = inode_ref (inode);
-                gf_uuid_copy (tmp_loc.gfid, inode->gfid);
+            /* Potential fd leak if this fails here as it will be
+               reopened at the next Phase1/2 check */
+            dht_fd_ctx_set(this, iter_fd, dst_node);
         }
 
-        /* lookup on dst */
-        ret = syncop_lookup (dst_node, &tmp_loc, &stbuf, NULL,
-                             NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_FILE_LOOKUP_ON_DST_FAILED,
-                        "%s: failed to lookup the file on %s",
-                        tmp_loc.path ? tmp_loc.path : uuid_utoa (tmp_loc.gfid),
-                        dst_node->name);
-                ret = -1;
-                goto out;
-        }
-
-        if (gf_uuid_compare (stbuf.ia_gfid, tmp_loc.inode->gfid)) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_GFID_MISMATCH,
-                        "%s: gfid different on the target file on %s",
-                        tmp_loc.path ? tmp_loc.path : uuid_utoa (tmp_loc.gfid),
-                        dst_node->name);
-                ret = -1;
-                goto out;
-        }
-        ret = 0;
-
-        if (tmp_loc.path == NULL) {
-                inode_path (inode, NULL, &path);
-                if (path)
-                        tmp_loc.path = path;
-        }
+        fd_unref(iter_fd);
 
         LOCK(&inode->lock);
+    }
 
-        if (list_empty (&inode->fd_list))
-                goto unlock;
-
-        /* perform open as root:root. There is window between linkfile
-         * creation(root:root) and setattr with the correct uid/gid
-         */
-        SYNCTASK_SETID (0, 0);
-
-        /* It's possible that we are the last user of iter_fd after each
-         * iteration. In this case the fd_unref() of iter_fd at the end of
-         * the loop will cause the destruction of the fd. So we need to
-         * iterate the list safely because iter_fd cannot be trusted.
-         */
-        list_for_each_entry_safe (iter_fd, tmp, &inode->fd_list, inode_list) {
-                if (fd_is_anonymous (iter_fd))
-                        continue;
-
-                if (dht_fd_open_on_dst (this, iter_fd, dst_node))
-                        continue;
-
-                /* We need to release the inode->lock before calling
-                 * syncop_open() to avoid possible deadlocks. However this
-                 * can cause the iter_fd to be released by other threads.
-                 * To avoid this, we take a reference before releasing the
-                 * lock.
-                 */
-                __fd_ref(iter_fd);
-
-                UNLOCK(&inode->lock);
-
-                /* flags for open are stripped down to allow following the
-                 * new location of the file, otherwise we can get EEXIST or
-                 * truncate the file again as rebalance is moving the data */
-                ret = syncop_open (dst_node, &tmp_loc,
-                                  (iter_fd->flags &
-                                   ~(O_CREAT | O_EXCL | O_TRUNC)),
-                                   iter_fd, NULL, NULL);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_OPEN_FD_ON_DST_FAILED,
-                                "failed to send open "
-                                "the fd (%p, flags=0%o) on file %s @ %s",
-                                iter_fd, iter_fd->flags, path,
-                                dst_node->name);
-                        ret = -1;
-                        open_failed = 1;
-                } else {
-                        /* Potential fd leak if this fails here as it will be
-                           reopened at the next Phase1/2 check */
-                        dht_fd_ctx_set (this, iter_fd, dst_node);
-                }
-
-                fd_unref(iter_fd);
-
-                LOCK(&inode->lock);
-        }
-
-        SYNCTASK_SETID (frame->root->uid, frame->root->gid);
+    SYNCTASK_SETID(frame->root->uid, frame->root->gid);
 
 unlock:
-        UNLOCK(&inode->lock);
+    UNLOCK(&inode->lock);
 
-        if (open_failed) {
-                ret = -1;
-                goto out;
-        }
+    if (open_failed) {
+        ret = -1;
+        goto out;
+    }
 
-        ret = dht_inode_ctx_set_mig_info (this, inode, src_node, dst_node);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_SET_INODE_CTX_FAILED,
-                        "%s: failed to set inode-ctx target file at %s",
-                        local->loc.path, dst_node->name);
-                goto out;
-        }
+    ret = dht_inode_ctx_set_mig_info(this, inode, src_node, dst_node);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SET_INODE_CTX_FAILED,
+               "%s: failed to set inode-ctx target file at %s", local->loc.path,
+               dst_node->name);
+        goto out;
+    }
 
-        ret = 0;
+    ret = 0;
 out:
-        if (dict) {
-                dict_unref (dict);
-        }
+    if (dict) {
+        dict_unref(dict);
+    }
 
-        loc_wipe (&tmp_loc);
-        return ret;
+    loc_wipe(&tmp_loc);
+    return ret;
 }
 
 int
-dht_rebalance_in_progress_check (xlator_t *this, call_frame_t *frame)
+dht_rebalance_in_progress_check(xlator_t *this, call_frame_t *frame)
 {
+    int ret = -1;
 
-        int         ret     = -1;
-
-        ret = synctask_new (this->ctx->env, dht_rebalance_inprogress_task,
-                            dht_inprogress_check_done,
-                            frame, frame);
-        return ret;
+    ret = synctask_new(this->ctx->env, dht_rebalance_inprogress_task,
+                       dht_inprogress_check_done, frame, frame);
+    return ret;
 }
 
 int
-dht_inode_ctx_layout_set (inode_t *inode, xlator_t *this,
-                          dht_layout_t *layout_int)
+dht_inode_ctx_layout_set(inode_t *inode, xlator_t *this,
+                         dht_layout_t *layout_int)
 {
-        dht_inode_ctx_t         *ctx            = NULL;
-        int                      ret            = -1;
-
-        ret = dht_inode_ctx_get (inode, this, &ctx);
-        if (!ret && ctx) {
-                ctx->layout = layout_int;
-        } else {
-                ctx = GF_CALLOC (1, sizeof (*ctx), gf_dht_mt_inode_ctx_t);
-                if (!ctx)
-                        return ret;
-                ctx->layout = layout_int;
-        }
-
-        ret = dht_inode_ctx_set (inode, this, ctx);
-
-        return ret;
+    dht_inode_ctx_t *ctx = NULL;
+    int ret = -1;
+
+    ret = dht_inode_ctx_get(inode, this, &ctx);
+    if (!ret && ctx) {
+        ctx->layout = layout_int;
+    } else {
+        ctx = GF_CALLOC(1, sizeof(*ctx), gf_dht_mt_inode_ctx_t);
+        if (!ctx)
+            return ret;
+        ctx->layout = layout_int;
+    }
+
+    ret = dht_inode_ctx_set(inode, this, ctx);
+
+    return ret;
 }
 
-
 void
-dht_inode_ctx_time_set (inode_t *inode, xlator_t *this, struct iatt *stat)
+dht_inode_ctx_time_set(inode_t *inode, xlator_t *this, struct iatt *stat)
 {
-        dht_inode_ctx_t         *ctx            = NULL;
-        dht_stat_time_t         *time           = 0;
-        int                      ret            = -1;
+    dht_inode_ctx_t *ctx = NULL;
+    dht_stat_time_t *time = 0;
+    int ret = -1;
 
-        ret = dht_inode_ctx_get (inode, this, &ctx);
+    ret = dht_inode_ctx_get(inode, this, &ctx);
 
-        if (ret)
-		return;
+    if (ret)
+        return;
 
-        time = &ctx->time;
+    time = &ctx->time;
 
-	time->mtime      = stat->ia_mtime;
-	time->mtime_nsec = stat->ia_mtime_nsec;
+    time->mtime = stat->ia_mtime;
+    time->mtime_nsec = stat->ia_mtime_nsec;
 
-	time->ctime      = stat->ia_ctime;
-	time->ctime_nsec = stat->ia_ctime_nsec;
+    time->ctime = stat->ia_ctime;
+    time->ctime_nsec = stat->ia_ctime_nsec;
 
-	time->atime      = stat->ia_atime;
-	time->atime_nsec = stat->ia_atime_nsec;
+    time->atime = stat->ia_atime;
+    time->atime_nsec = stat->ia_atime_nsec;
 
-	return;
+    return;
 }
 
-
 int
-dht_inode_ctx_time_update (inode_t *inode, xlator_t *this, struct iatt *stat,
-                           int32_t post)
+dht_inode_ctx_time_update(inode_t *inode, xlator_t *this, struct iatt *stat,
+                          int32_t post)
 {
-        dht_inode_ctx_t         *ctx            = NULL;
-        dht_stat_time_t         *time           = 0;
-        int                      ret            = -1;
+    dht_inode_ctx_t *ctx = NULL;
+    dht_stat_time_t *time = 0;
+    int ret = -1;
 
-        GF_VALIDATE_OR_GOTO (this->name, stat, out);
-        GF_VALIDATE_OR_GOTO (this->name, inode, out);
+    GF_VALIDATE_OR_GOTO(this->name, stat, out);
+    GF_VALIDATE_OR_GOTO(this->name, inode, out);
 
-        ret = dht_inode_ctx_get (inode, this, &ctx);
+    ret = dht_inode_ctx_get(inode, this, &ctx);
 
-        if (ret) {
-                ctx = GF_CALLOC (1, sizeof (*ctx), gf_dht_mt_inode_ctx_t);
-                if (!ctx)
-                        return -1;
-        }
+    if (ret) {
+        ctx = GF_CALLOC(1, sizeof(*ctx), gf_dht_mt_inode_ctx_t);
+        if (!ctx)
+            return -1;
+    }
 
-        time = &ctx->time;
+    time = &ctx->time;
 
-        DHT_UPDATE_TIME(time->mtime, time->mtime_nsec,
-                        stat->ia_mtime, stat->ia_mtime_nsec, inode, post);
-        DHT_UPDATE_TIME(time->ctime, time->ctime_nsec,
-                        stat->ia_ctime, stat->ia_ctime_nsec, inode, post);
-        DHT_UPDATE_TIME(time->atime, time->atime_nsec,
-                        stat->ia_atime, stat->ia_atime_nsec, inode, post);
+    DHT_UPDATE_TIME(time->mtime, time->mtime_nsec, stat->ia_mtime,
+                    stat->ia_mtime_nsec, inode, post);
+    DHT_UPDATE_TIME(time->ctime, time->ctime_nsec, stat->ia_ctime,
+                    stat->ia_ctime_nsec, inode, post);
+    DHT_UPDATE_TIME(time->atime, time->atime_nsec, stat->ia_atime,
+                    stat->ia_atime_nsec, inode, post);
 
-        ret = dht_inode_ctx_set (inode, this, ctx);
+    ret = dht_inode_ctx_set(inode, this, ctx);
 out:
-        return 0;
+    return 0;
 }
 
 int
-dht_inode_ctx_get (inode_t *inode, xlator_t *this, dht_inode_ctx_t **ctx)
+dht_inode_ctx_get(inode_t *inode, xlator_t *this, dht_inode_ctx_t **ctx)
 {
-        int             ret     = -1;
-        uint64_t        ctx_int = 0;
+    int ret = -1;
+    uint64_t ctx_int = 0;
 
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, inode, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, inode, out);
 
-        ret = inode_ctx_get (inode, this, &ctx_int);
+    ret = inode_ctx_get(inode, this, &ctx_int);
 
-        if (ret)
-                return ret;
+    if (ret)
+        return ret;
 
-        if (ctx)
-                *ctx = (dht_inode_ctx_t *) ctx_int;
+    if (ctx)
+        *ctx = (dht_inode_ctx_t *)ctx_int;
 out:
-        return ret;
+    return ret;
 }
 
-int dht_inode_ctx_set (inode_t *inode, xlator_t *this, dht_inode_ctx_t *ctx)
+int
+dht_inode_ctx_set(inode_t *inode, xlator_t *this, dht_inode_ctx_t *ctx)
 {
-        int             ret = -1;
-        uint64_t        ctx_int = 0;
+    int ret = -1;
+    uint64_t ctx_int = 0;
 
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, inode, out);
-        GF_VALIDATE_OR_GOTO (this->name, ctx, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, inode, out);
+    GF_VALIDATE_OR_GOTO(this->name, ctx, out);
 
-        ctx_int = (long)ctx;
-        ret = inode_ctx_set (inode, this, &ctx_int);
+    ctx_int = (long)ctx;
+    ret = inode_ctx_set(inode, this, &ctx_int);
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_subvol_status (dht_conf_t *conf, xlator_t *subvol)
+dht_subvol_status(dht_conf_t *conf, xlator_t *subvol)
 {
-        int i;
+    int i;
 
-        for (i=0 ; i < conf->subvolume_cnt; i++) {
-                if (conf->subvolumes[i] == subvol) {
-                        return conf->subvolume_status[i];
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->subvolumes[i] == subvol) {
+            return conf->subvolume_status[i];
         }
-        return 0;
+    }
+    return 0;
 }
 
-inode_t*
-dht_heal_path (xlator_t *this, char *path, inode_table_t *itable)
+inode_t *
+dht_heal_path(xlator_t *this, char *path, inode_table_t *itable)
 {
-        int             ret             = -1;
-        struct iatt     iatt            = {0, };
-        inode_t        *linked_inode    = NULL;
-        loc_t           loc             = {0, };
-        char           *bname           = NULL;
-        char           *save_ptr        = NULL;
-        uuid_t          gfid            = {0, };
-        char           *tmp_path        = NULL;
-
-
-        tmp_path = gf_strdup (path);
-        if (!tmp_path) {
-                goto out;
-        }
+    int ret = -1;
+    struct iatt iatt = {
+        0,
+    };
+    inode_t *linked_inode = NULL;
+    loc_t loc = {
+        0,
+    };
+    char *bname = NULL;
+    char *save_ptr = NULL;
+    uuid_t gfid = {
+        0,
+    };
+    char *tmp_path = NULL;
+
+    tmp_path = gf_strdup(path);
+    if (!tmp_path) {
+        goto out;
+    }
 
-        memset (gfid, 0, 16);
-        gfid[15] = 1;
+    memset(gfid, 0, 16);
+    gfid[15] = 1;
 
-        gf_uuid_copy (loc.pargfid, gfid);
-        loc.parent = inode_ref (itable->root);
+    gf_uuid_copy(loc.pargfid, gfid);
+    loc.parent = inode_ref(itable->root);
 
-        bname = strtok_r (tmp_path, "/",  &save_ptr);
+    bname = strtok_r(tmp_path, "/", &save_ptr);
 
-        /* sending a lookup on parent directory,
-         * Eg:  if  path is like /a/b/c/d/e/f/g/
-         * then we will send a lookup on a first and then b,c,d,etc
-         */
+    /* sending a lookup on parent directory,
+     * Eg:  if  path is like /a/b/c/d/e/f/g/
+     * then we will send a lookup on a first and then b,c,d,etc
+     */
 
-        while (bname) {
-                linked_inode = NULL;
-                loc.inode = inode_grep (itable, loc.parent, bname);
-                if (loc.inode == NULL) {
-                        loc.inode = inode_new (itable);
-                        if (loc.inode == NULL) {
-                                ret = -ENOMEM;
-                                goto out;
-                        }
-                } else {
-                        /*
-                         * Inode is already populated in the inode table.
-                         * Which means we already looked up the inode and
-                         * linked with a dentry. So that we will skip
-                         * lookup on this entry, and proceed to next.
-                         */
-                        linked_inode = loc.inode;
-                        bname = strtok_r (NULL, "/",  &save_ptr);
-                        inode_unref (loc.parent);
-                        if (!bname) {
-                                goto out;
-                        }
-                        loc.parent = loc.inode;
-                        gf_uuid_copy (loc.pargfid, loc.inode->gfid);
-                        loc.inode = NULL;
-                        continue;
-                }
+    while (bname) {
+        linked_inode = NULL;
+        loc.inode = inode_grep(itable, loc.parent, bname);
+        if (loc.inode == NULL) {
+            loc.inode = inode_new(itable);
+            if (loc.inode == NULL) {
+                ret = -ENOMEM;
+                goto out;
+            }
+        } else {
+            /*
+             * Inode is already populated in the inode table.
+             * Which means we already looked up the inode and
+             * linked with a dentry. So that we will skip
+             * lookup on this entry, and proceed to next.
+             */
+            linked_inode = loc.inode;
+            bname = strtok_r(NULL, "/", &save_ptr);
+            inode_unref(loc.parent);
+            if (!bname) {
+                goto out;
+            }
+            loc.parent = loc.inode;
+            gf_uuid_copy(loc.pargfid, loc.inode->gfid);
+            loc.inode = NULL;
+            continue;
+        }
 
-                loc.name = bname;
-                ret = loc_path (&loc, bname);
+        loc.name = bname;
+        ret = loc_path(&loc, bname);
 
-                ret = syncop_lookup (this, &loc, &iatt, NULL, NULL, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_INFO, -ret,
-                                DHT_MSG_DIR_SELFHEAL_FAILED,
-                                "Healing of path %s failed on subvolume %s for "
-                                "directory %s", path, this->name, bname);
-                        goto out;
-                }
+        ret = syncop_lookup(this, &loc, &iatt, NULL, NULL, NULL);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_INFO, -ret, DHT_MSG_DIR_SELFHEAL_FAILED,
+                   "Healing of path %s failed on subvolume %s for "
+                   "directory %s",
+                   path, this->name, bname);
+            goto out;
+        }
 
-                linked_inode = inode_link (loc.inode, loc.parent, bname, &iatt);
-                if (!linked_inode)
-                        goto out;
+        linked_inode = inode_link(loc.inode, loc.parent, bname, &iatt);
+        if (!linked_inode)
+            goto out;
 
-                loc_wipe (&loc);
-                gf_uuid_copy (loc.pargfid, linked_inode->gfid);
-                loc.inode = NULL;
+        loc_wipe(&loc);
+        gf_uuid_copy(loc.pargfid, linked_inode->gfid);
+        loc.inode = NULL;
 
-                bname = strtok_r (NULL, "/",  &save_ptr);
-                if (bname)
-                        loc.parent = linked_inode;
-        }
+        bname = strtok_r(NULL, "/", &save_ptr);
+        if (bname)
+            loc.parent = linked_inode;
+    }
 out:
-        inode_ref (linked_inode);
-        loc_wipe (&loc);
-        GF_FREE (tmp_path);
+    inode_ref(linked_inode);
+    loc_wipe(&loc);
+    GF_FREE(tmp_path);
 
-        return linked_inode;
+    return linked_inode;
 }
 
-
 int
-dht_heal_full_path (void *data)
+dht_heal_full_path(void *data)
 {
-        call_frame_t            *heal_frame     = data;
-        dht_local_t             *local          = NULL;
-        loc_t                    loc            = {0, };
-        dict_t                  *dict           = NULL;
-        char                    *path           = NULL;
-        int                      ret            = -1;
-        xlator_t                *source         = NULL;
-        xlator_t                *this           = NULL;
-        inode_table_t           *itable         = NULL;
-        inode_t                 *inode          = NULL;
-        inode_t                 *tmp_inode      = NULL;
-
-        GF_VALIDATE_OR_GOTO ("DHT", heal_frame, out);
-
-        local = heal_frame->local;
-        this = heal_frame->this;
-        source = heal_frame->cookie;
-        heal_frame->cookie = NULL;
-        gf_uuid_copy (loc.gfid, local->gfid);
-
-        if (local->loc.inode)
-                loc.inode = inode_ref (local->loc.inode);
-        else
-                goto out;
-
-        itable = loc.inode->table;
-        ret = syncop_getxattr (source, &loc, &dict,
-                       GET_ANCESTRY_PATH_KEY, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_INFO, -ret,
-                        DHT_MSG_DIR_SELFHEAL_FAILED,
-                        "Failed to get path from subvol %s. Aborting "
-                        "directory healing.", source->name);
-                goto out;
-        }
+    call_frame_t *heal_frame = data;
+    dht_local_t *local = NULL;
+    loc_t loc = {
+        0,
+    };
+    dict_t *dict = NULL;
+    char *path = NULL;
+    int ret = -1;
+    xlator_t *source = NULL;
+    xlator_t *this = NULL;
+    inode_table_t *itable = NULL;
+    inode_t *inode = NULL;
+    inode_t *tmp_inode = NULL;
+
+    GF_VALIDATE_OR_GOTO("DHT", heal_frame, out);
+
+    local = heal_frame->local;
+    this = heal_frame->this;
+    source = heal_frame->cookie;
+    heal_frame->cookie = NULL;
+    gf_uuid_copy(loc.gfid, local->gfid);
+
+    if (local->loc.inode)
+        loc.inode = inode_ref(local->loc.inode);
+    else
+        goto out;
 
-        ret = dict_get_str (dict, GET_ANCESTRY_PATH_KEY, &path);
-        if (path) {
-                inode = dht_heal_path (this, path, itable);
-                if (inode && inode != local->inode) {
-                        /*
-                         * if inode returned by heal function is different
-                         * from what we passed, which means a racing thread
-                         * already linked a different inode for dentry.
-                         * So we will update our local->inode, so that we can
-                         * retrurn proper inode.
-                         */
-                        tmp_inode = local->inode;
-                        local->inode = inode;
-                        inode_unref (tmp_inode);
-                        tmp_inode = NULL;
-                } else {
-                        inode_unref (inode);
-                }
+    itable = loc.inode->table;
+    ret = syncop_getxattr(source, &loc, &dict, GET_ANCESTRY_PATH_KEY, NULL,
+                          NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_INFO, -ret, DHT_MSG_DIR_SELFHEAL_FAILED,
+               "Failed to get path from subvol %s. Aborting "
+               "directory healing.",
+               source->name);
+        goto out;
+    }
+
+    ret = dict_get_str(dict, GET_ANCESTRY_PATH_KEY, &path);
+    if (path) {
+        inode = dht_heal_path(this, path, itable);
+        if (inode && inode != local->inode) {
+            /*
+             * if inode returned by heal function is different
+             * from what we passed, which means a racing thread
+             * already linked a different inode for dentry.
+             * So we will update our local->inode, so that we can
+             * retrurn proper inode.
+             */
+            tmp_inode = local->inode;
+            local->inode = inode;
+            inode_unref(tmp_inode);
+            tmp_inode = NULL;
+        } else {
+            inode_unref(inode);
         }
+    }
 
 out:
-        loc_wipe (&loc);
-        if (dict)
-                dict_unref (dict);
-        return 0;
+    loc_wipe(&loc);
+    if (dict)
+        dict_unref(dict);
+    return 0;
 }
 
 int
-dht_heal_full_path_done (int op_ret, call_frame_t *heal_frame, void *data)
+dht_heal_full_path_done(int op_ret, call_frame_t *heal_frame, void *data)
 {
+    call_frame_t *main_frame = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    int ret = -1;
+
+    local = heal_frame->local;
+    main_frame = local->main_frame;
+    local->main_frame = NULL;
+    this = heal_frame->this;
+
+    dht_set_fixed_dir_stat(&local->postparent);
+    if (local->need_xattr_heal) {
+        local->need_xattr_heal = 0;
+        ret = dht_dir_xattr_heal(this, local);
+        if (ret)
+            gf_msg(this->name, GF_LOG_ERROR, ret, DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                   "xattr heal failed for directory  %s ", local->loc.path);
+    }
 
-        call_frame_t            *main_frame       = NULL;
-        dht_local_t             *local            = NULL;
-        xlator_t                *this             = NULL;
-        int                     ret               = -1;
-
-        local = heal_frame->local;
-        main_frame = local->main_frame;
-        local->main_frame = NULL;
-        this = heal_frame->this;
-
-        dht_set_fixed_dir_stat (&local->postparent);
-        if (local->need_xattr_heal) {
-                local->need_xattr_heal = 0;
-                ret =  dht_dir_xattr_heal (this, local);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_ERROR, ret,
-                                DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                "xattr heal failed for directory  %s ",
-                                local->loc.path);
-        }
-
-        DHT_STACK_UNWIND (lookup, main_frame, 0, 0,
-                          local->inode, &local->stbuf, local->xattr,
-                          &local->postparent);
+    DHT_STACK_UNWIND(lookup, main_frame, 0, 0, local->inode, &local->stbuf,
+                     local->xattr, &local->postparent);
 
-        DHT_STACK_DESTROY (heal_frame);
-        return 0;
+    DHT_STACK_DESTROY(heal_frame);
+    return 0;
 }
 
 /* This function must be called inside an inode lock */
 int
-__dht_lock_subvol_set (inode_t *inode, xlator_t *this,
-                       xlator_t *lock_subvol)
+__dht_lock_subvol_set(inode_t *inode, xlator_t *this, xlator_t *lock_subvol)
 {
-        dht_inode_ctx_t         *ctx            = NULL;
-        int                      ret            = -1;
-        uint64_t                 value          = 0;
+    dht_inode_ctx_t *ctx = NULL;
+    int ret = -1;
+    uint64_t value = 0;
 
-        GF_VALIDATE_OR_GOTO (this->name, inode, out);
+    GF_VALIDATE_OR_GOTO(this->name, inode, out);
 
-        ret = __inode_ctx_get0 (inode, this, &value);
-        if (ret || !value) {
-                return -1;
-        }
+    ret = __inode_ctx_get0(inode, this, &value);
+    if (ret || !value) {
+        return -1;
+    }
 
-        ctx = (dht_inode_ctx_t *) value;
-        ctx->lock_subvol = lock_subvol;
+    ctx = (dht_inode_ctx_t *)value;
+    ctx->lock_subvol = lock_subvol;
 out:
-        return ret;
+    return ret;
 }
 
-xlator_t*
-dht_get_lock_subvolume (xlator_t *this, struct gf_flock *lock,
-                        dht_local_t *local)
+xlator_t *
+dht_get_lock_subvolume(xlator_t *this, struct gf_flock *lock,
+                       dht_local_t *local)
 {
-        xlator_t                *subvol                  = NULL;
-        inode_t                 *inode                   = NULL;
-        int32_t                  ret                     = -1;
-        uint64_t                 value                   = 0;
-        xlator_t                *cached_subvol           = NULL;
-        dht_inode_ctx_t         *ctx                     = NULL;
-        char                     gfid[GF_UUID_BUF_SIZE]  = {0};
-
-        GF_VALIDATE_OR_GOTO (this->name, lock, out);
-        GF_VALIDATE_OR_GOTO (this->name, local, out);
+    xlator_t *subvol = NULL;
+    inode_t *inode = NULL;
+    int32_t ret = -1;
+    uint64_t value = 0;
+    xlator_t *cached_subvol = NULL;
+    dht_inode_ctx_t *ctx = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        cached_subvol = local->cached_subvol;
+    GF_VALIDATE_OR_GOTO(this->name, lock, out);
+    GF_VALIDATE_OR_GOTO(this->name, local, out);
 
-        if (local->loc.inode || local->fd) {
-                inode = local->loc.inode ? local->loc.inode : local->fd->inode;
-        }
+    cached_subvol = local->cached_subvol;
 
-        if (!inode)
-                goto out;
+    if (local->loc.inode || local->fd) {
+        inode = local->loc.inode ? local->loc.inode : local->fd->inode;
+    }
 
-        if (!(IA_ISDIR (inode->ia_type) || IA_ISINVAL (inode->ia_type))) {
-                /*
-                 * We may get non-linked inode for directories as part
-                 * of the selfheal code path. So checking  for IA_INVAL
-                 * type also. This will only happen for directory.
-                 */
-                subvol = local->cached_subvol;
-                goto out;
-        }
+    if (!inode)
+        goto out;
 
-        if (lock->l_type != F_UNLCK) {
-                /*
-                 * inode purging might happen on NFS between a lk
-                 * and unlk. Due to this lk and unlk might be sent
-                 * to different subvols.
-                 * So during a lock request, taking a ref on inode
-                 * to prevent inode purging. inode unref will happen
-                 * in unlock cbk code path.
-                 */
-                inode_ref (inode);
-        }
+    if (!(IA_ISDIR(inode->ia_type) || IA_ISINVAL(inode->ia_type))) {
+        /*
+         * We may get non-linked inode for directories as part
+         * of the selfheal code path. So checking  for IA_INVAL
+         * type also. This will only happen for directory.
+         */
+        subvol = local->cached_subvol;
+        goto out;
+    }
 
-        LOCK (&inode->lock);
-                ret = __inode_ctx_get0 (inode, this, &value);
-                if (!ret && value) {
-                        ctx = (dht_inode_ctx_t *) value;
-                        subvol = ctx->lock_subvol;
-                }
-                if (!subvol && lock->l_type != F_UNLCK && cached_subvol) {
-                        ret = __dht_lock_subvol_set (inode, this,
-                                                     cached_subvol);
-                        if (ret) {
-                                gf_uuid_unparse(inode->gfid, gfid);
-                                gf_msg (this->name, GF_LOG_WARNING, 0,
-                                        DHT_MSG_SET_INODE_CTX_FAILED,
-                                        "Failed to set lock_subvol in "
-                                        "inode ctx for gfid %s",
-                                        gfid);
-                                goto unlock;
-                        }
-                        subvol = cached_subvol;
-                }
+    if (lock->l_type != F_UNLCK) {
+        /*
+         * inode purging might happen on NFS between a lk
+         * and unlk. Due to this lk and unlk might be sent
+         * to different subvols.
+         * So during a lock request, taking a ref on inode
+         * to prevent inode purging. inode unref will happen
+         * in unlock cbk code path.
+         */
+        inode_ref(inode);
+    }
+
+    LOCK(&inode->lock);
+    ret = __inode_ctx_get0(inode, this, &value);
+    if (!ret && value) {
+        ctx = (dht_inode_ctx_t *)value;
+        subvol = ctx->lock_subvol;
+    }
+    if (!subvol && lock->l_type != F_UNLCK && cached_subvol) {
+        ret = __dht_lock_subvol_set(inode, this, cached_subvol);
+        if (ret) {
+            gf_uuid_unparse(inode->gfid, gfid);
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_SET_INODE_CTX_FAILED,
+                   "Failed to set lock_subvol in "
+                   "inode ctx for gfid %s",
+                   gfid);
+            goto unlock;
+        }
+        subvol = cached_subvol;
+    }
 unlock:
-        UNLOCK (&inode->lock);
-        if (!subvol && inode && lock->l_type != F_UNLCK) {
-                inode_unref (inode);
-        }
+    UNLOCK(&inode->lock);
+    if (!subvol && inode && lock->l_type != F_UNLCK) {
+        inode_unref(inode);
+    }
 out:
-        return subvol;
+    return subvol;
 }
 
 int
-dht_lk_inode_unref (call_frame_t *frame, int32_t op_ret)
+dht_lk_inode_unref(call_frame_t *frame, int32_t op_ret)
 {
-        int                     ret                     = -1;
-        dht_local_t            *local                   = NULL;
-        inode_t                *inode                   = NULL;
-        xlator_t               *this                    = NULL;
-        char                    gfid[GF_UUID_BUF_SIZE]  = {0};
+    int ret = -1;
+    dht_local_t *local = NULL;
+    inode_t *inode = NULL;
+    xlator_t *this = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        local = frame->local;
-        this = frame->this;
+    local = frame->local;
+    this = frame->this;
 
-        if (local->loc.inode || local->fd) {
-                inode = local->loc.inode ? local->loc.inode : local->fd->inode;
-        }
-        if (!inode) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_LOCK_INODE_UNREF_FAILED,
-                        "Found a NULL inode. Failed to unref the inode");
-                goto out;
-        }
+    if (local->loc.inode || local->fd) {
+        inode = local->loc.inode ? local->loc.inode : local->fd->inode;
+    }
+    if (!inode) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LOCK_INODE_UNREF_FAILED,
+               "Found a NULL inode. Failed to unref the inode");
+        goto out;
+    }
 
-        if (!(IA_ISDIR (inode->ia_type) || IA_ISINVAL (inode->ia_type))) {
-                ret = 0;
-                goto out;
-        }
+    if (!(IA_ISDIR(inode->ia_type) || IA_ISINVAL(inode->ia_type))) {
+        ret = 0;
+        goto out;
+    }
 
-        switch (local->lock_type) {
+    switch (local->lock_type) {
         case F_RDLCK:
         case F_WRLCK:
-                if (op_ret) {
-                        gf_uuid_unparse(inode->gfid, gfid);
-                        gf_msg_debug (this->name, 0,
-                                "lock request failed for gfid %s", gfid);
-                        inode_unref (inode);
-                        goto out;
-                }
-                break;
+            if (op_ret) {
+                gf_uuid_unparse(inode->gfid, gfid);
+                gf_msg_debug(this->name, 0, "lock request failed for gfid %s",
+                             gfid);
+                inode_unref(inode);
+                goto out;
+            }
+            break;
 
         case F_UNLCK:
-                if (!op_ret) {
-                        inode_unref (inode);
-                } else {
-                        gf_uuid_unparse(inode->gfid, gfid);
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_LOCK_INODE_UNREF_FAILED,
-                                "Unlock request failed for gfid %s."
-                                "Failed to unref the inode", gfid);
-                        goto out;
-                }
+            if (!op_ret) {
+                inode_unref(inode);
+            } else {
+                gf_uuid_unparse(inode->gfid, gfid);
+                gf_msg(this->name, GF_LOG_WARNING, 0,
+                       DHT_MSG_LOCK_INODE_UNREF_FAILED,
+                       "Unlock request failed for gfid %s."
+                       "Failed to unref the inode",
+                       gfid);
+                goto out;
+            }
         default:
-                break;
-        }
-        ret = 0;
+            break;
+    }
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
 /* Code to update custom extended attributes from src dict to dst dict
-*/
+ */
 void
-dht_dir_set_heal_xattr (xlator_t *this, dht_local_t *local, dict_t *dst,
-                        dict_t *src, int *uret, int *uflag)
+dht_dir_set_heal_xattr(xlator_t *this, dht_local_t *local, dict_t *dst,
+                       dict_t *src, int *uret, int *uflag)
 {
-        int               ret                 = -1;
-        data_t           *keyval              = NULL;
-        int               luret               = -1;
-        int               luflag              = -1;
-        int               i                   = 0;
-
-        if (!src || !dst) {
-                gf_msg (this->name, GF_LOG_WARNING, EINVAL,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "src or dst is NULL. Failed to set "
-                        " dictionary value for path %s",
-                        local->loc.path);
-                return;
-        }
-        /* Check if any user xattr present in src dict and set
-           it to dst dict
-        */
-        luret = dict_foreach_fnmatch (src, "user.*",
-                                      dht_set_user_xattr, dst);
-        /* Check if any other custom xattr present in src dict
-           and set it to dst dict, here index start from 1 because
-           user xattr already checked in previous statement
-        */
-        for (i = 1; xattrs_to_heal[i]; i++) {
-                keyval = dict_get (src, xattrs_to_heal[i]);
-                if (keyval) {
-                        luflag = 1;
-                        ret = dict_set (dst, xattrs_to_heal[i], keyval);
-                        if (ret)
-                                gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "Failed to set dictionary value:key = %s for "
-                                        "path %s", xattrs_to_heal[i],
-                                        local->loc.path);
-                        keyval = NULL;
-                }
-        }
-        if (uret)
-                (*uret) = luret;
-        if (uflag)
-                (*uflag) = luflag;
+    int ret = -1;
+    data_t *keyval = NULL;
+    int luret = -1;
+    int luflag = -1;
+    int i = 0;
+
+    if (!src || !dst) {
+        gf_msg(this->name, GF_LOG_WARNING, EINVAL, DHT_MSG_DICT_SET_FAILED,
+               "src or dst is NULL. Failed to set "
+               " dictionary value for path %s",
+               local->loc.path);
+        return;
+    }
+    /* Check if any user xattr present in src dict and set
+       it to dst dict
+    */
+    luret = dict_foreach_fnmatch(src, "user.*", dht_set_user_xattr, dst);
+    /* Check if any other custom xattr present in src dict
+       and set it to dst dict, here index start from 1 because
+       user xattr already checked in previous statement
+    */
+    for (i = 1; xattrs_to_heal[i]; i++) {
+        keyval = dict_get(src, xattrs_to_heal[i]);
+        if (keyval) {
+            luflag = 1;
+            ret = dict_set(dst, xattrs_to_heal[i], keyval);
+            if (ret)
+                gf_msg(this->name, GF_LOG_WARNING, ENOMEM,
+                       DHT_MSG_DICT_SET_FAILED,
+                       "Failed to set dictionary value:key = %s for "
+                       "path %s",
+                       xattrs_to_heal[i], local->loc.path);
+            keyval = NULL;
+        }
+    }
+    if (uret)
+        (*uret) = luret;
+    if (uflag)
+        (*uflag) = luflag;
 }
diff --git a/xlators/cluster/dht/src/dht-inode-read.c b/xlators/cluster/dht/src/dht-inode-read.c
index 53215a3d34d..f2be5120e37 100644
--- a/xlators/cluster/dht/src/dht-inode-read.c
+++ b/xlators/cluster/dht/src/dht-inode-read.c
@@ -10,1544 +10,1475 @@
 
 #include "dht-common.h"
 
-int dht_access2 (xlator_t *this, xlator_t *dst_node,
-                 call_frame_t *frame, int ret);
-int dht_readv2 (xlator_t *this, xlator_t *dst_node,
-                call_frame_t *frame, int ret);
-int dht_attr2 (xlator_t *this, xlator_t *dst_node,
-               call_frame_t *frame, int ret);
-int dht_open2 (xlator_t *this, xlator_t *dst_node,
-               call_frame_t *frame, int ret);
-int dht_flush2 (xlator_t *this, xlator_t *dst_node,
-                call_frame_t *frame, int ret);
-int dht_lk2 (xlator_t *this, xlator_t *dst_node,
-             call_frame_t *frame, int ret);
-int dht_fsync2 (xlator_t *this, xlator_t *dst_node,
-                call_frame_t *frame, int ret);
 int
-dht_common_xattrop2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame,
-                     int ret);
+dht_access2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
+int
+dht_readv2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
+int
+dht_attr2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
+int
+dht_open2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
+int
+dht_flush2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
+int
+dht_lk2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
+int
+dht_fsync2(xlator_t *this, xlator_t *dst_node, call_frame_t *frame, int ret);
+int
+dht_common_xattrop2(xlator_t *this, xlator_t *subvol, call_frame_t *frame,
+                    int ret);
 
 int
-dht_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-              int op_ret, int op_errno, fd_t *fd, dict_t *xdata)
+dht_open_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+             int op_errno, fd_t *fd, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        int           ret = 0;
-
-        local = frame->local;
-        prev = cookie;
-
-        local->op_errno = op_errno;
-        if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-                goto out;
-        }
-
-        /* Update ctx if the fd has been opened on the target*/
-        if (!op_ret && (local->call_cnt == 1)) {
-                dht_fd_ctx_set (this, fd, prev);
-                goto out;
-        }
-
-        if (!op_ret || (local->call_cnt != 1))
-                goto out;
-
-        /* rebalance would have happened */
-        local->rebalance.target_op_fn = dht_open2;
-        ret = dht_rebalance_complete_check (this, frame);
-        if (!ret)
-                return 0;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = 0;
+
+    local = frame->local;
+    prev = cookie;
+
+    local->op_errno = op_errno;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
+        goto out;
+    }
+
+    /* Update ctx if the fd has been opened on the target*/
+    if (!op_ret && (local->call_cnt == 1)) {
+        dht_fd_ctx_set(this, fd, prev);
+        goto out;
+    }
+
+    if (!op_ret || (local->call_cnt != 1))
+        goto out;
+
+    /* rebalance would have happened */
+    local->rebalance.target_op_fn = dht_open2;
+    ret = dht_rebalance_complete_check(this, frame);
+    if (!ret)
+        return 0;
 
 out:
-        DHT_STACK_UNWIND (open, frame, op_ret, op_errno, local->fd, xdata);
+    DHT_STACK_UNWIND(open, frame, op_ret, op_errno, local->fd, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_open2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_open2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int          op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
 
-        if (!frame || !frame->local)
-                goto out;
+    if (!frame || !frame->local)
+        goto out;
 
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This DHT layer is not migrating the file */
-                DHT_STACK_UNWIND (open, frame, -1, local->op_errno,
-                                  NULL, local->rebalance.xdata);
-                return 0;
+    local = frame->local;
+    op_errno = local->op_errno;
 
-        }
+    if (we_are_not_migrating(ret)) {
+        /* This DHT layer is not migrating the file */
+        DHT_STACK_UNWIND(open, frame, -1, local->op_errno, NULL,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2;
+    local->call_cnt = 2;
 
-        STACK_WIND_COOKIE (frame, dht_open_cbk, subvol, subvol,
-                           subvol->fops->open, &local->loc,
-                           local->rebalance.flags, local->fd, local->xattr_req);
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_open_cbk, subvol, subvol, subvol->fops->open,
+                      &local->loc, local->rebalance.flags, local->fd,
+                      local->xattr_req);
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (open, frame, -1, op_errno, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(open, frame, -1, op_errno, NULL, NULL);
+    return 0;
 }
 
-
 int
-dht_open (call_frame_t *frame, xlator_t *this,
-          loc_t *loc, int flags, fd_t *fd, dict_t *xdata)
+dht_open(call_frame_t *frame, xlator_t *this, loc_t *loc, int flags, fd_t *fd,
+         dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, loc, fd, GF_FOP_OPEN);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
 
-        local->rebalance.flags = flags;
-        local->call_cnt = 1;
+    local = dht_local_init(frame, loc, fd, GF_FOP_OPEN);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        STACK_WIND_COOKIE (frame, dht_open_cbk, subvol, subvol,
-                           subvol->fops->open, loc, flags, fd, xdata);
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
 
-        return 0;
+    local->rebalance.flags = flags;
+    local->call_cnt = 1;
+
+    STACK_WIND_COOKIE(frame, dht_open_cbk, subvol, subvol, subvol->fops->open,
+                      loc, flags, fd, xdata);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (open, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(open, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_file_attr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                   int op_ret, int op_errno, struct iatt *stbuf, dict_t *xdata)
+dht_file_attr_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                  int op_errno, struct iatt *stbuf, dict_t *xdata)
 {
-        xlator_t     *subvol1 = 0;
-        xlator_t     *subvol2 = 0;
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        int           ret = -1;
-        inode_t      *inode = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
-
-        local = frame->local;
-        prev = cookie;
-
-        if ((local->fop == GF_FOP_FSTAT) && (op_ret == -1)
-             && (op_errno == EBADF) && !(local->fd_checked)) {
-
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
-
-        if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
-                local->op_errno = op_errno;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-                goto out;
-        }
-
-        if (local->call_cnt != 1)
-                goto out;
+    xlator_t *subvol1 = 0;
+    xlator_t *subvol2 = 0;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    inode_t *inode = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+
+    local = frame->local;
+    prev = cookie;
+
+    if ((local->fop == GF_FOP_FSTAT) && (op_ret == -1) && (op_errno == EBADF) &&
+        !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
         local->op_errno = op_errno;
-        local->op_ret = op_ret;
-
-        /* Check if the rebalance phase2 is true */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (stbuf)) {
-
-                local->rebalance.target_op_fn = dht_attr2;
-                dht_set_local_rebalance (this, local, NULL, NULL,
-                                         stbuf, xdata);
-                inode = (local->fd) ? local->fd->inode : local->loc.inode;
-
-                dht_inode_ctx_get_mig_info (this, inode, &subvol1, &subvol2);
-                if (dht_mig_info_is_invalid (local->cached_subvol,
-                                             subvol1, subvol2)){
-                        /* Phase 2 of migration */
-                        ret = dht_rebalance_complete_check (this, frame);
-                        if (!ret)
-                                return 0;
-                } else {
-                        /* it is a non-fd op or it is an fd based Fop and
-                           opened on the dst.*/
-                       if (local->fd &&
-                           !dht_fd_open_on_dst (this, local->fd, subvol2)) {
-                                ret = dht_rebalance_complete_check (this, frame);
-                                if (!ret)
-                                        return 0;
-                        } else {
-                                dht_attr2 (this, subvol2, frame, 0);
-                                return 0;
-                        }
-                }
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
+        goto out;
+    }
+
+    if (local->call_cnt != 1)
+        goto out;
+
+    local->op_errno = op_errno;
+    local->op_ret = op_ret;
+
+    /* Check if the rebalance phase2 is true */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(stbuf)) {
+        local->rebalance.target_op_fn = dht_attr2;
+        dht_set_local_rebalance(this, local, NULL, NULL, stbuf, xdata);
+        inode = (local->fd) ? local->fd->inode : local->loc.inode;
+
+        dht_inode_ctx_get_mig_info(this, inode, &subvol1, &subvol2);
+        if (dht_mig_info_is_invalid(local->cached_subvol, subvol1, subvol2)) {
+            /* Phase 2 of migration */
+            ret = dht_rebalance_complete_check(this, frame);
+            if (!ret)
+                return 0;
+        } else {
+            /* it is a non-fd op or it is an fd based Fop and
+               opened on the dst.*/
+            if (local->fd && !dht_fd_open_on_dst(this, local->fd, subvol2)) {
+                ret = dht_rebalance_complete_check(this, frame);
+                if (!ret)
+                    return 0;
+            } else {
+                dht_attr2(this, subvol2, frame, 0);
+                return 0;
+            }
         }
+    }
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
-        DHT_STACK_UNWIND (stat, frame, op_ret, op_errno, stbuf, xdata);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
+    DHT_STACK_UNWIND(stat, frame, op_ret, op_errno, stbuf, xdata);
 err:
-        return 0;
+    return 0;
 }
 
 int
-dht_attr2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_attr2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int          op_errno = EINVAL;
-
-        local = frame->local;
-        if (!local)
-                goto out;
-
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (stat, frame, local->op_ret, op_errno,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
-                return 0;
-        }
-
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
+
+    local = frame->local;
+    if (!local)
+        goto out;
+
+    op_errno = local->op_errno;
+
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(stat, frame, local->op_ret, op_errno,
+                         &local->rebalance.postbuf, local->rebalance.xdata);
+        return 0;
+    }
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2;
+    local->call_cnt = 2;
 
-        if (local->fop == GF_FOP_FSTAT) {
-                STACK_WIND_COOKIE (frame, dht_file_attr_cbk, subvol, subvol,
-                                   subvol->fops->fstat, local->fd,
-                                   local->xattr_req);
-        } else {
-                STACK_WIND_COOKIE (frame, dht_file_attr_cbk, subvol, subvol,
-                                   subvol->fops->stat, &local->loc,
-                                   local->xattr_req);
-        }
+    if (local->fop == GF_FOP_FSTAT) {
+        STACK_WIND_COOKIE(frame, dht_file_attr_cbk, subvol, subvol,
+                          subvol->fops->fstat, local->fd, local->xattr_req);
+    } else {
+        STACK_WIND_COOKIE(frame, dht_file_attr_cbk, subvol, subvol,
+                          subvol->fops->stat, &local->loc, local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (stat, frame, -1, op_errno, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(stat, frame, -1, op_errno, NULL, NULL);
+    return 0;
 }
 
 int
-dht_attr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-              int op_ret, int op_errno, struct iatt *stbuf, dict_t *xdata)
+dht_attr_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+             int op_errno, struct iatt *stbuf, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
 
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
 
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "subvolume %s returned -1",
-                                      prev->name);
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                         prev->name);
 
-                        goto unlock;
-                }
+            goto unlock;
+        }
 
-                dht_iatt_merge (this, &local->stbuf, stbuf);
+        dht_iatt_merge(this, &local->stbuf, stbuf);
 
-                local->op_ret = 0;
-        }
+        local->op_ret = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 out:
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                DHT_STACK_UNWIND (stat, frame, local->op_ret, local->op_errno,
-                                  &local->stbuf, xdata);
-        }
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        DHT_STACK_UNWIND(stat, frame, local->op_ret, local->op_errno,
+                         &local->stbuf, xdata);
+    }
 err:
-        return 0;
+    return 0;
 }
 
 int
-dht_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+dht_stat(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-        dht_layout_t *layout = NULL;
-        int           i = 0;
-        int           call_cnt = 0;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_STAT);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        layout = local->layout;
-        if (!layout) {
-                gf_msg_debug (this->name, 0,
-                              "no layout for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        if (IA_ISREG (loc->inode->ia_type)) {
-                local->call_cnt = 1;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    int i = 0;
+    int call_cnt = 0;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_STAT);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg_debug(this->name, 0, "no layout for path=%s", loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    if (IA_ISREG(loc->inode->ia_type)) {
+        local->call_cnt = 1;
 
-                subvol = local->cached_subvol;
+        subvol = local->cached_subvol;
 
-                STACK_WIND_COOKIE (frame, dht_file_attr_cbk, subvol, subvol,
-                                   subvol->fops->stat, loc, xdata);
+        STACK_WIND_COOKIE(frame, dht_file_attr_cbk, subvol, subvol,
+                          subvol->fops->stat, loc, xdata);
 
-                return 0;
-        }
+        return 0;
+    }
 
-        local->call_cnt = call_cnt = layout->cnt;
+    local->call_cnt = call_cnt = layout->cnt;
 
-        for (i = 0; i < call_cnt; i++) {
-                subvol = layout->list[i].xlator;
+    for (i = 0; i < call_cnt; i++) {
+        subvol = layout->list[i].xlator;
 
-                STACK_WIND_COOKIE (frame, dht_attr_cbk, subvol, subvol,
-                                   subvol->fops->stat, loc, xdata);
-        }
+        STACK_WIND_COOKIE(frame, dht_attr_cbk, subvol, subvol,
+                          subvol->fops->stat, loc, xdata);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (stat, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(stat, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fstat (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
+dht_fstat(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-        dht_layout_t *layout = NULL;
-        int           i = 0;
-        int           call_cnt = 0;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FSTAT);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        layout = local->layout;
-        if (!layout) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, 0,
-                        "no layout for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        if (IA_ISREG (fd->inode->ia_type)) {
-                local->call_cnt = 1;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    int i = 0;
+    int call_cnt = 0;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FSTAT);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, 0, "no layout for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    if (IA_ISREG(fd->inode->ia_type)) {
+        local->call_cnt = 1;
 
-                subvol = local->cached_subvol;
+        subvol = local->cached_subvol;
 
-                STACK_WIND_COOKIE (frame, dht_file_attr_cbk, subvol,
-                                   subvol, subvol->fops->fstat, fd,
-                                   xdata);
-                return 0;
-        }
+        STACK_WIND_COOKIE(frame, dht_file_attr_cbk, subvol, subvol,
+                          subvol->fops->fstat, fd, xdata);
+        return 0;
+    }
 
-        local->call_cnt = call_cnt = layout->cnt;
+    local->call_cnt = call_cnt = layout->cnt;
 
-        for (i = 0; i < call_cnt; i++) {
-                subvol = layout->list[i].xlator;
-                STACK_WIND_COOKIE (frame, dht_attr_cbk, subvol, subvol,
-                                   subvol->fops->fstat, fd, xdata);
-        }
+    for (i = 0; i < call_cnt; i++) {
+        subvol = layout->list[i].xlator;
+        STACK_WIND_COOKIE(frame, dht_attr_cbk, subvol, subvol,
+                          subvol->fops->fstat, fd, xdata);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fstat, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fstat, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_readv_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-               int op_ret, int op_errno,
-               struct iovec *vector, int count, struct iatt *stbuf,
-               struct iobref *iobref, dict_t *xdata)
+dht_readv_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+              int op_errno, struct iovec *vector, int count, struct iatt *stbuf,
+              struct iobref *iobref, dict_t *xdata)
 {
-        dht_local_t *local      = NULL;
-        int          ret        = 0;
-        xlator_t    *src_subvol = 0;
-        xlator_t    *dst_subvol = 0;
-
-        local = frame->local;
-        if (!local) {
-                op_ret = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
+    dht_local_t *local = NULL;
+    int ret = 0;
+    xlator_t *src_subvol = 0;
+    xlator_t *dst_subvol = 0;
+
+    local = frame->local;
+    if (!local) {
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
+
+    /* This is already second try, no need for re-check */
+    if (local->call_cnt != 1)
+        goto out;
+
+    if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        /* This is already second try, no need for re-check */
-        if (local->call_cnt != 1)
-                goto out;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno))
+        goto out;
 
-        if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
+    local->op_errno = op_errno;
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(stbuf)) {
+        local->op_ret = op_ret;
+        local->rebalance.target_op_fn = dht_readv2;
+        dht_set_local_rebalance(this, local, NULL, NULL, stbuf, xdata);
+        /* File would be migrated to other node */
+        ret = dht_inode_ctx_get_mig_info(this, local->fd->inode, &src_subvol,
+                                         &dst_subvol);
+
+        if (dht_mig_info_is_invalid(local->cached_subvol, src_subvol,
+                                    dst_subvol) ||
+            !dht_fd_open_on_dst(this, local->fd, dst_subvol)) {
+            ret = dht_rebalance_complete_check(this, frame);
+            if (!ret)
                 return 0;
+        } else {
+            /* value is already set in fd_ctx, that means no need
+               to check for whether its complete or not. */
+            dht_readv2(this, dst_subvol, frame, 0);
+            return 0;
         }
-
-        if ((op_ret == -1) && !dht_inode_missing(op_errno))
-                goto out;
-
-
-        local->op_errno = op_errno;
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (stbuf)) {
-
-                local->op_ret = op_ret;
-                local->rebalance.target_op_fn = dht_readv2;
-                dht_set_local_rebalance (this, local, NULL, NULL,
-                                         stbuf, xdata);
-                /* File would be migrated to other node */
-                ret = dht_inode_ctx_get_mig_info (this, local->fd->inode,
-                                                  &src_subvol,
-                                                  &dst_subvol);
-
-                if (dht_mig_info_is_invalid (local->cached_subvol,
-                                             src_subvol, dst_subvol)
-                        || !dht_fd_open_on_dst(this, local->fd, dst_subvol)) {
-
-                        ret = dht_rebalance_complete_check (this, frame);
-                        if (!ret)
-                                return 0;
-                } else {
-                        /* value is already set in fd_ctx, that means no need
-                           to check for whether its complete or not. */
-                        dht_readv2 (this, dst_subvol, frame, 0);
-                        return 0;
-                }
-        }
+    }
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
 
-        DHT_STACK_UNWIND (readv, frame, op_ret, op_errno, vector, count, stbuf,
-                          iobref, xdata);
+    DHT_STACK_UNWIND(readv, frame, op_ret, op_errno, vector, count, stbuf,
+                     iobref, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_readv2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_readv2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local  = NULL;
-        int          op_errno = EINVAL;
-
-        local = frame->local;
-        if (!local)
-                goto out;
-
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (readv, frame, local->op_ret, op_errno,
-                                  NULL, 0, &local->rebalance.postbuf,
-                                  NULL, local->rebalance.xdata);
-                return 0;
-        }
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
+
+    local = frame->local;
+    if (!local)
+        goto out;
+
+    op_errno = local->op_errno;
+
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(readv, frame, local->op_ret, op_errno, NULL, 0,
+                         &local->rebalance.postbuf, NULL,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2;
+    local->call_cnt = 2;
 
-        STACK_WIND (frame, dht_readv_cbk, subvol, subvol->fops->readv,
-                    local->fd, local->rebalance.size, local->rebalance.offset,
-                    local->rebalance.flags, local->xattr_req);
+    STACK_WIND(frame, dht_readv_cbk, subvol, subvol->fops->readv, local->fd,
+               local->rebalance.size, local->rebalance.offset,
+               local->rebalance.flags, local->xattr_req);
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (readv, frame, -1, op_errno, NULL, 0, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(readv, frame, -1, op_errno, NULL, 0, NULL, NULL, NULL);
+    return 0;
 }
 
-
 int
-dht_readv (call_frame_t *frame, xlator_t *this,
-           fd_t *fd, size_t size, off_t off, uint32_t flags, dict_t *xdata)
+dht_readv(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t off,
+          uint32_t flags, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_READ);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
 
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
+    local = dht_local_init(frame, NULL, fd, GF_FOP_READ);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        local->rebalance.offset = off;
-        local->rebalance.size   = size;
-        local->rebalance.flags  = flags;
-        local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        STACK_WIND (frame, dht_readv_cbk, subvol, subvol->fops->readv,
-                    local->fd, local->rebalance.size,
-                    local->rebalance.offset,
-                    local->rebalance.flags, local->xattr_req);
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
 
-        return 0;
+    local->rebalance.offset = off;
+    local->rebalance.size = size;
+    local->rebalance.flags = flags;
+    local->call_cnt = 1;
+
+    STACK_WIND(frame, dht_readv_cbk, subvol, subvol->fops->readv, local->fd,
+               local->rebalance.size, local->rebalance.offset,
+               local->rebalance.flags, local->xattr_req);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (readv, frame, -1, op_errno, NULL, 0, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(readv, frame, -1, op_errno, NULL, 0, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_access_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, dict_t *xdata)
+dht_access_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+               int op_errno, dict_t *xdata)
 {
-        int          ret = -1;
-        dht_local_t *local = NULL;
-        xlator_t    *subvol = NULL;
-        xlator_t    *prev = NULL;
-
-        local = frame->local;
-        prev = cookie;
-
-        if (!prev)
-                goto out;
-        if (local->call_cnt != 1)
-                goto out;
-        if ((op_ret == -1) && ((op_errno == ENOTCONN) ||
-                dht_inode_missing(op_errno)) &&
-                IA_ISDIR(local->loc.inode->ia_type)) {
-                subvol = dht_subvol_next_available (this, prev);
-                if (!subvol)
-                        goto out;
-
-                /* check if we are done with visiting every node */
-                if (subvol == local->cached_subvol) {
-                        goto out;
-                }
-
-                STACK_WIND_COOKIE (frame, dht_access_cbk, subvol, subvol,
-                                   subvol->fops->access, &local->loc,
-                                   local->rebalance.flags, NULL);
-                return 0;
-        }
-        if ((op_ret == -1) && dht_inode_missing(op_errno) &&
-                !(IA_ISDIR(local->loc.inode->ia_type))) {
-                /* File would be migrated to other node */
-                local->op_errno = op_errno;
-                local->rebalance.target_op_fn = dht_access2;
-                ret = dht_rebalance_complete_check (frame->this, frame);
-                if (!ret)
-                        return 0;
-        }
+    int ret = -1;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *prev = NULL;
+
+    local = frame->local;
+    prev = cookie;
+
+    if (!prev)
+        goto out;
+    if (local->call_cnt != 1)
+        goto out;
+    if ((op_ret == -1) &&
+        ((op_errno == ENOTCONN) || dht_inode_missing(op_errno)) &&
+        IA_ISDIR(local->loc.inode->ia_type)) {
+        subvol = dht_subvol_next_available(this, prev);
+        if (!subvol)
+            goto out;
+
+        /* check if we are done with visiting every node */
+        if (subvol == local->cached_subvol) {
+            goto out;
+        }
+
+        STACK_WIND_COOKIE(frame, dht_access_cbk, subvol, subvol,
+                          subvol->fops->access, &local->loc,
+                          local->rebalance.flags, NULL);
+        return 0;
+    }
+    if ((op_ret == -1) && dht_inode_missing(op_errno) &&
+        !(IA_ISDIR(local->loc.inode->ia_type))) {
+        /* File would be migrated to other node */
+        local->op_errno = op_errno;
+        local->rebalance.target_op_fn = dht_access2;
+        ret = dht_rebalance_complete_check(frame->this, frame);
+        if (!ret)
+            return 0;
+    }
 
 out:
-        DHT_STACK_UNWIND (access, frame, op_ret, op_errno, xdata);
-        return 0;
+    DHT_STACK_UNWIND(access, frame, op_ret, op_errno, xdata);
+    return 0;
 }
 
 int
-dht_access2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_access2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int          op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int op_errno = EINVAL;
 
-        local = frame->local;
-        if (!local)
-                goto out;
+    local = frame->local;
+    if (!local)
+        goto out;
 
-        op_errno = local->op_errno;
+    op_errno = local->op_errno;
 
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
 
-                DHT_STACK_UNWIND (access, frame, -1, op_errno, NULL);
-                return 0;
-        }
+        DHT_STACK_UNWIND(access, frame, -1, op_errno, NULL);
+        return 0;
+    }
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2;
+    local->call_cnt = 2;
 
-        STACK_WIND_COOKIE (frame, dht_access_cbk, subvol, subvol,
-                           subvol->fops->access, &local->loc,
-                           local->rebalance.flags, local->xattr_req);
+    STACK_WIND_COOKIE(frame, dht_access_cbk, subvol, subvol,
+                      subvol->fops->access, &local->loc, local->rebalance.flags,
+                      local->xattr_req);
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (access, frame, -1, op_errno, NULL);
-        return 0;
+    DHT_STACK_UNWIND(access, frame, -1, op_errno, NULL);
+    return 0;
 }
 
-
 int
-dht_access (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask,
-            dict_t *xdata)
+dht_access(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask,
+           dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_ACCESS);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->rebalance.flags = mask;
-        local->call_cnt = 1;
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        STACK_WIND_COOKIE (frame, dht_access_cbk, subvol, subvol,
-                           subvol->fops->access, loc, mask, xdata);
-
-        return 0;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_ACCESS);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->rebalance.flags = mask;
+    local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    STACK_WIND_COOKIE(frame, dht_access_cbk, subvol, subvol,
+                      subvol->fops->access, loc, mask, xdata);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (access, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(access, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_flush_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-               int op_ret, int op_errno, dict_t *xdata)
+dht_flush_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+              int op_errno, dict_t *xdata)
 {
-        dht_local_t     *local  = NULL;
-        xlator_t        *subvol = 0;
-        int             ret = 0;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = 0;
+    int ret = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        local->op_errno = op_errno;
+    local->op_errno = op_errno;
 
-        if (local->call_cnt != 1)
-                goto out;
+    if (local->call_cnt != 1)
+        goto out;
 
-        if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
+    if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        local->rebalance.target_op_fn = dht_flush2;
+    local->rebalance.target_op_fn = dht_flush2;
 
-        local->op_ret = op_ret;
-        local->op_errno = op_errno;
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
 
-        /* If context is set, then send flush() it to the destination */
-        dht_inode_ctx_get_mig_info (this, local->fd->inode, NULL, &subvol);
-        if (subvol && dht_fd_open_on_dst (this, local->fd, subvol)) {
-                dht_flush2 (this, subvol, frame, 0);
-                return 0;
-        }
+    /* If context is set, then send flush() it to the destination */
+    dht_inode_ctx_get_mig_info(this, local->fd->inode, NULL, &subvol);
+    if (subvol && dht_fd_open_on_dst(this, local->fd, subvol)) {
+        dht_flush2(this, subvol, frame, 0);
+        return 0;
+    }
 
-        if (op_errno == EREMOTE) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret) {
-                        return 0;
-                }
+    if (op_errno == EREMOTE) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret) {
+            return 0;
         }
+    }
 
 out:
-        DHT_STACK_UNWIND (flush, frame, op_ret, op_errno, xdata);
+    DHT_STACK_UNWIND(flush, frame, op_ret, op_errno, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_flush2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_flush2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if ((frame == NULL) || (frame->local == NULL))
-                goto out;
+    if ((frame == NULL) || (frame->local == NULL))
+        goto out;
 
-        local = frame->local;
+    local = frame->local;
 
-        op_errno = local->op_errno;
+    op_errno = local->op_errno;
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2; /* This is the second attempt */
+    local->call_cnt = 2; /* This is the second attempt */
 
-        STACK_WIND (frame, dht_flush_cbk,
-                    subvol, subvol->fops->flush, local->fd,
-                    local->xattr_req);
+    STACK_WIND(frame, dht_flush_cbk, subvol, subvol->fops->flush, local->fd,
+               local->xattr_req);
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (flush, frame, -1, op_errno, NULL);
-        return 0;
+    DHT_STACK_UNWIND(flush, frame, -1, op_errno, NULL);
+    return 0;
 }
 
-
 int
-dht_flush (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
+dht_flush(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FLUSH);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
 
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FLUSH);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        STACK_WIND (frame, dht_flush_cbk,
-                    subvol, subvol->fops->flush, fd, local->xattr_req);
-        return 0;
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    local->call_cnt = 1;
+
+    STACK_WIND(frame, dht_flush_cbk, subvol, subvol->fops->flush, fd,
+               local->xattr_req);
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (flush, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(flush, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
-               int op_errno, struct iatt *prebuf, struct iatt *postbuf,
-               dict_t *xdata)
+dht_fsync_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+              int op_errno, struct iatt *prebuf, struct iatt *postbuf,
+              dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        int           ret = -1;
-        inode_t      *inode = NULL;
-        xlator_t     *src_subvol = 0;
-        xlator_t     *dst_subvol = 0;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    inode_t *inode = NULL;
+    xlator_t *src_subvol = 0;
+    xlator_t *dst_subvol = 0;
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
 
-        local->op_errno = op_errno;
+    local->op_errno = op_errno;
 
-        if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
+    if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        if (op_ret == -1 && !dht_inode_missing(op_errno)) {
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-                goto out;
-        }
+    if (op_ret == -1 && !dht_inode_missing(op_errno)) {
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
+        goto out;
+    }
 
-        if (local->call_cnt != 1) {
-                if (local->stbuf.ia_blocks) {
-                        dht_iatt_merge (this, postbuf, &local->stbuf);
-                        dht_iatt_merge (this, prebuf, &local->prebuf);
-                }
-                goto out;
+    if (local->call_cnt != 1) {
+        if (local->stbuf.ia_blocks) {
+            dht_iatt_merge(this, postbuf, &local->stbuf);
+            dht_iatt_merge(this, prebuf, &local->prebuf);
         }
+        goto out;
+    }
 
-        local->op_ret = op_ret;
-        inode = local->fd->inode;
+    local->op_ret = op_ret;
+    inode = local->fd->inode;
 
-        local->rebalance.target_op_fn = dht_fsync2;
-        dht_set_local_rebalance (this, local, NULL, prebuf,
-                                 postbuf, xdata);
+    local->rebalance.target_op_fn = dht_fsync2;
+    dht_set_local_rebalance(this, local, NULL, prebuf, postbuf, xdata);
 
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (postbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
-
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (postbuf)) {
-
-                dht_iatt_merge (this, &local->stbuf, postbuf);
-                dht_iatt_merge (this, &local->prebuf, prebuf);
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(postbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
-                dht_inode_ctx_get_mig_info (this, inode, &src_subvol, &dst_subvol);
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(postbuf)) {
+        dht_iatt_merge(this, &local->stbuf, postbuf);
+        dht_iatt_merge(this, &local->prebuf, prebuf);
 
-                if (dht_mig_info_is_invalid (local->cached_subvol, src_subvol,
-                                     dst_subvol) ||
-                      !dht_fd_open_on_dst (this, local->fd, dst_subvol)) {
+        dht_inode_ctx_get_mig_info(this, inode, &src_subvol, &dst_subvol);
 
-                        ret = dht_rebalance_in_progress_check (this, frame);
-                        if (!ret)
-                                return 0;
-                } else {
-                        dht_fsync2 (this, dst_subvol, frame, 0);
-                        return 0;
-                }
+        if (dht_mig_info_is_invalid(local->cached_subvol, src_subvol,
+                                    dst_subvol) ||
+            !dht_fd_open_on_dst(this, local->fd, dst_subvol)) {
+            ret = dht_rebalance_in_progress_check(this, frame);
+            if (!ret)
+                return 0;
+        } else {
+            dht_fsync2(this, dst_subvol, frame, 0);
+            return 0;
         }
-
+    }
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (postbuf);
-        DHT_STRIP_PHASE1_FLAGS (prebuf);
+    DHT_STRIP_PHASE1_FLAGS(postbuf);
+    DHT_STRIP_PHASE1_FLAGS(prebuf);
 
-        DHT_STACK_UNWIND (fsync, frame, op_ret, op_errno,
-                          prebuf, postbuf, xdata);
+    DHT_STACK_UNWIND(fsync, frame, op_ret, op_errno, prebuf, postbuf, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_fsync2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_fsync2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
-
-        if ((frame == NULL) || (frame->local == NULL))
-                goto out;
-
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (fsync, frame, local->op_ret,
-                                  op_errno, &local->rebalance.prebuf,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
-                return 0;
-        }
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
+
+    if ((frame == NULL) || (frame->local == NULL))
+        goto out;
+
+    local = frame->local;
+    op_errno = local->op_errno;
+
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(fsync, frame, local->op_ret, op_errno,
+                         &local->rebalance.prebuf, &local->rebalance.postbuf,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2; /* This is the second attempt */
+    local->call_cnt = 2; /* This is the second attempt */
 
-        STACK_WIND_COOKIE (frame, dht_fsync_cbk, subvol, subvol,
-                           subvol->fops->fsync, local->fd,
-                           local->rebalance.flags, local->xattr_req);
+    STACK_WIND_COOKIE(frame, dht_fsync_cbk, subvol, subvol, subvol->fops->fsync,
+                      local->fd, local->rebalance.flags, local->xattr_req);
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (fsync, frame, -1, op_errno, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(fsync, frame, -1, op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-dht_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd, int datasync,
-           dict_t *xdata)
+dht_fsync(call_frame_t *frame, xlator_t *this, fd_t *fd, int datasync,
+          dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
 
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FSYNC);
-        if (!local) {
-                op_errno = ENOMEM;
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FSYNC);
+    if (!local) {
+        op_errno = ENOMEM;
 
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
 
-        local->call_cnt = 1;
-        local->rebalance.flags = datasync;
+    local->call_cnt = 1;
+    local->rebalance.flags = datasync;
 
-        subvol = local->cached_subvol;
+    subvol = local->cached_subvol;
 
-        STACK_WIND_COOKIE (frame, dht_fsync_cbk, subvol, subvol,
-                           subvol->fops->fsync, local->fd,
-                           local->rebalance.flags, local->xattr_req);
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_fsync_cbk, subvol, subvol, subvol->fops->fsync,
+                      local->fd, local->rebalance.flags, local->xattr_req);
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fsync, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fsync, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 /* TODO: for 'lk()' call, we need some other special error, may be ESTALE to
    indicate that lock migration happened on the fd, so we can consider it as
    phase 2 of migration */
 int
-dht_lk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-            int op_ret, int op_errno, struct gf_flock *flock, dict_t *xdata)
+dht_lk_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+           int op_errno, struct gf_flock *flock, dict_t *xdata)
 {
-        dht_local_t     *local  = NULL;
-        int             ret     = -1;
-        xlator_t        *subvol = NULL;
+    dht_local_t *local = NULL;
+    int ret = -1;
+    xlator_t *subvol = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (!local) {
-                op_ret = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
+    if (!local) {
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
 
-        if (local->call_cnt != 1)
-                goto out;
+    if (local->call_cnt != 1)
+        goto out;
 
-        local->rebalance.target_op_fn = dht_lk2;
+    local->rebalance.target_op_fn = dht_lk2;
 
-        local->op_ret = op_ret;
-        local->op_errno = op_errno;
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
+
+    if (xdata)
+        local->rebalance.xdata = dict_ref(xdata);
 
-        if (xdata)
-                local->rebalance.xdata = dict_ref (xdata);
-
-        if (op_errno == EREMOTE) {
-                dht_inode_ctx_get_mig_info (this, local->fd->inode,
-                                            NULL, &subvol);
-                if (subvol && dht_fd_open_on_dst (this, local->fd, subvol)) {
-                        dht_lk2 (this, subvol, frame, 0);
-                        return 0;
-                } else {
-                        ret = dht_rebalance_complete_check (this, frame);
-                        if (!ret) {
-                                return 0;
-                        }
-                }
+    if (op_errno == EREMOTE) {
+        dht_inode_ctx_get_mig_info(this, local->fd->inode, NULL, &subvol);
+        if (subvol && dht_fd_open_on_dst(this, local->fd, subvol)) {
+            dht_lk2(this, subvol, frame, 0);
+            return 0;
+        } else {
+            ret = dht_rebalance_complete_check(this, frame);
+            if (!ret) {
+                return 0;
+            }
         }
+    }
 
 out:
-        dht_lk_inode_unref (frame, op_ret);
-        DHT_STACK_UNWIND (lk, frame, op_ret, op_errno, flock, xdata);
+    dht_lk_inode_unref(frame, op_ret);
+    DHT_STACK_UNWIND(lk, frame, op_ret, op_errno, flock, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_lk2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_lk2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if ((frame == NULL) || (frame->local == NULL))
-                goto out;
+    if ((frame == NULL) || (frame->local == NULL))
+        goto out;
 
-        local = frame->local;
+    local = frame->local;
 
-        op_errno = local->op_errno;
+    op_errno = local->op_errno;
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2; /* This is the second attempt */
+    local->call_cnt = 2; /* This is the second attempt */
 
-        STACK_WIND (frame, dht_lk_cbk, subvol, subvol->fops->lk, local->fd,
-                    local->rebalance.lock_cmd, &local->rebalance.flock,
-                    local->xattr_req);
+    STACK_WIND(frame, dht_lk_cbk, subvol, subvol->fops->lk, local->fd,
+               local->rebalance.lock_cmd, &local->rebalance.flock,
+               local->xattr_req);
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (lk, frame, -1, op_errno, NULL,  NULL);
-        return 0;
+    DHT_STACK_UNWIND(lk, frame, -1, op_errno, NULL, NULL);
+    return 0;
 }
 
 int
-dht_lk (call_frame_t *frame, xlator_t *this,
-        fd_t *fd, int cmd, struct gf_flock *flock, dict_t *xdata)
+dht_lk(call_frame_t *frame, xlator_t *this, fd_t *fd, int cmd,
+       struct gf_flock *flock, dict_t *xdata)
 {
-        xlator_t        *lock_subvol    = NULL;
-        int             op_errno        = -1;
-        dht_local_t     *local          = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_LK);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->lock_type = flock->l_type;
-        lock_subvol = dht_get_lock_subvolume (this, flock, local);
-        if (!lock_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no lock subvolume for path=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-/*
-        local->cached_subvol = lock_subvol;
-        ret = dht_check_and_open_fd_on_subvol (this, frame);
-        if (ret)
-                goto err;
-*/
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        local->rebalance.flock = *flock;
-        local->rebalance.lock_cmd = cmd;
-
-        local->call_cnt = 1;
-
-        STACK_WIND (frame, dht_lk_cbk, lock_subvol, lock_subvol->fops->lk, fd,
-                    cmd, flock, xdata);
-
-        return 0;
+    xlator_t *lock_subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_LK);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->lock_type = flock->l_type;
+    lock_subvol = dht_get_lock_subvolume(this, flock, local);
+    if (!lock_subvol) {
+        gf_msg_debug(this->name, 0, "no lock subvolume for path=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    /*
+            local->cached_subvol = lock_subvol;
+            ret = dht_check_and_open_fd_on_subvol (this, frame);
+            if (ret)
+                    goto err;
+    */
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    local->rebalance.flock = *flock;
+    local->rebalance.lock_cmd = cmd;
+
+    local->call_cnt = 1;
+
+    STACK_WIND(frame, dht_lk_cbk, lock_subvol, lock_subvol->fops->lk, fd, cmd,
+               flock, xdata);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (lk, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(lk, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_lease_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-               int op_ret, int op_errno, struct gf_lease *lease, dict_t *xdata)
+dht_lease_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+              int op_errno, struct gf_lease *lease, dict_t *xdata)
 {
-        DHT_STACK_UNWIND (lease, frame, op_ret, op_errno, lease, xdata);
+    DHT_STACK_UNWIND(lease, frame, op_ret, op_errno, lease, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_lease (call_frame_t *frame, xlator_t *this,
-           loc_t *loc, struct gf_lease *lease, dict_t *xdata)
+dht_lease(call_frame_t *frame, xlator_t *this, loc_t *loc,
+          struct gf_lease *lease, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-
-        subvol = dht_subvol_get_cached (this, loc->inode);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
 
-        /* TODO: for rebalance, we need to preserve the fop arguments */
-        STACK_WIND (frame, dht_lease_cbk, subvol, subvol->fops->lease,
-                    loc, lease, xdata);
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
 
-        return 0;
+    subvol = dht_subvol_get_cached(this, loc->inode);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    /* TODO: for rebalance, we need to preserve the fop arguments */
+    STACK_WIND(frame, dht_lease_cbk, subvol, subvol->fops->lease, loc, lease,
+               xdata);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (lease, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(lease, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 /* Symlinks are currently not migrated, so no need for any check here */
 int
-dht_readlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int op_ret, int op_errno, const char *path,
-                  struct iatt *stbuf, dict_t *xdata)
+dht_readlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, const char *path, struct iatt *stbuf,
+                 dict_t *xdata)
 {
-        dht_local_t *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
-        if (op_ret == -1)
-                goto err;
+    local = frame->local;
+    if (op_ret == -1)
+        goto err;
 
-        if (!local) {
-                op_ret = -1;
-                op_errno = EINVAL;
-        }
+    if (!local) {
+        op_ret = -1;
+        op_errno = EINVAL;
+    }
 
 err:
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
-        DHT_STACK_UNWIND (readlink, frame, op_ret, op_errno, path, stbuf, xdata);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
+    DHT_STACK_UNWIND(readlink, frame, op_ret, op_errno, path, stbuf, xdata);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_readlink (call_frame_t *frame, xlator_t *this, loc_t *loc, size_t size,
-              dict_t *xdata)
+dht_readlink(call_frame_t *frame, xlator_t *this, loc_t *loc, size_t size,
+             dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_READLINK);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        STACK_WIND (frame, dht_readlink_cbk,
-                    subvol, subvol->fops->readlink,
-                    loc, size, xdata);
-
-        return 0;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_READLINK);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    STACK_WIND(frame, dht_readlink_cbk, subvol, subvol->fops->readlink, loc,
+               size, xdata);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (readlink, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(readlink, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_common_xattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int32_t op_ret, int32_t op_errno, dict_t *dict,
-                        dict_t *xdata)
+dht_common_xattrop_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int32_t op_ret, int32_t op_errno, dict_t *dict,
+                       dict_t *xdata)
 {
-        dht_local_t  *local          = NULL;
-        call_frame_t *call_frame     = NULL;
-        xlator_t     *prev           = NULL;
-        xlator_t     *src_subvol     = NULL;
-        xlator_t     *dst_subvol     = NULL;
-        struct iatt   stbuf          = {0,};
-        int           ret            = -1;
-        inode_t      *inode          = NULL;
-
-        local = frame->local;
-        call_frame = cookie;
-        prev = call_frame->this;
-
-        local->op_errno = op_errno;
-
-        if ((op_ret == -1) && !dht_inode_missing (op_errno)) {
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1.",
-                              prev->name);
-                goto out;
-        }
-
-        if (local->call_cnt != 1)
-                goto out;
-
-        ret = dht_read_iatt_from_xdata (this, xdata, &stbuf);
-
-        if ((!op_ret) && (ret)) {
-                /* This is a potential problem and can cause corruption
-                 * with sharding.
-                 * Oh well. We tried.
-                 */
-                goto out;
-        }
-
-        local->op_ret = op_ret;
-        local->rebalance.target_op_fn = dht_common_xattrop2;
-        if (xdata)
-                local->rebalance.xdata = dict_ref (xdata);
-
-        if (dict)
-                local->rebalance.dict = dict_ref (dict);
-
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (&stbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
-
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (&stbuf)) {
-
-                inode = local->loc.inode ? local->loc.inode : local->fd->inode;
-                dht_inode_ctx_get_mig_info (this, inode, &src_subvol,
-                                            &dst_subvol);
-
-                if (dht_mig_info_is_invalid (local->cached_subvol, src_subvol,
-                                             dst_subvol) ||
-                      !dht_fd_open_on_dst (this, local->fd, dst_subvol)) {
-
-                        ret = dht_rebalance_in_progress_check (this, frame);
-                        if (!ret)
-                                return 0;
-                } else {
-                        dht_common_xattrop2 (this, dst_subvol, frame, 0);
-                        return 0;
-                }
+    dht_local_t *local = NULL;
+    call_frame_t *call_frame = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *src_subvol = NULL;
+    xlator_t *dst_subvol = NULL;
+    struct iatt stbuf = {
+        0,
+    };
+    int ret = -1;
+    inode_t *inode = NULL;
+
+    local = frame->local;
+    call_frame = cookie;
+    prev = call_frame->this;
+
+    local->op_errno = op_errno;
+
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1.",
+                     prev->name);
+        goto out;
+    }
+
+    if (local->call_cnt != 1)
+        goto out;
+
+    ret = dht_read_iatt_from_xdata(this, xdata, &stbuf);
+
+    if ((!op_ret) && (ret)) {
+        /* This is a potential problem and can cause corruption
+         * with sharding.
+         * Oh well. We tried.
+         */
+        goto out;
+    }
+
+    local->op_ret = op_ret;
+    local->rebalance.target_op_fn = dht_common_xattrop2;
+    if (xdata)
+        local->rebalance.xdata = dict_ref(xdata);
+
+    if (dict)
+        local->rebalance.dict = dict_ref(dict);
+
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(&stbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
+
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(&stbuf)) {
+        inode = local->loc.inode ? local->loc.inode : local->fd->inode;
+        dht_inode_ctx_get_mig_info(this, inode, &src_subvol, &dst_subvol);
+
+        if (dht_mig_info_is_invalid(local->cached_subvol, src_subvol,
+                                    dst_subvol) ||
+            !dht_fd_open_on_dst(this, local->fd, dst_subvol)) {
+            ret = dht_rebalance_in_progress_check(this, frame);
+            if (!ret)
+                return 0;
+        } else {
+            dht_common_xattrop2(this, dst_subvol, frame, 0);
+            return 0;
         }
-
+    }
 
 out:
-        if (local->fop == GF_FOP_XATTROP) {
-                DHT_STACK_UNWIND (xattrop, frame, op_ret, op_errno,
-                                  dict, xdata);
-        } else {
-                DHT_STACK_UNWIND (fxattrop, frame, op_ret, op_errno,
-                                  dict, xdata);
-        }
+    if (local->fop == GF_FOP_XATTROP) {
+        DHT_STACK_UNWIND(xattrop, frame, op_ret, op_errno, dict, xdata);
+    } else {
+        DHT_STACK_UNWIND(fxattrop, frame, op_ret, op_errno, dict, xdata);
+    }
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_common_xattrop2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame,
-                     int ret)
+dht_common_xattrop2(xlator_t *this, xlator_t *subvol, call_frame_t *frame,
+                    int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
-
-        if ((frame == NULL) || (frame->local == NULL))
-                goto out;
-
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                if (local->fop == GF_FOP_XATTROP) {
-                        DHT_STACK_UNWIND (xattrop, frame, local->op_ret,
-                                          op_errno, local->rebalance.dict,
-                                          local->rebalance.xdata);
-                } else {
-                        DHT_STACK_UNWIND (fxattrop, frame, local->op_ret,
-                                          op_errno, local->rebalance.dict,
-                                          local->rebalance.xdata);
-                }
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-                return 0;
-        }
+    if ((frame == NULL) || (frame->local == NULL))
+        goto out;
 
-        if (subvol == NULL)
-                goto out;
-
-        local->call_cnt = 2; /* This is the second attempt */
+    local = frame->local;
+    op_errno = local->op_errno;
 
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
         if (local->fop == GF_FOP_XATTROP) {
-                STACK_WIND (frame, dht_common_xattrop_cbk, subvol,
-                            subvol->fops->xattrop, &local->loc,
-                            local->rebalance.flags, local->rebalance.xattr,
-                            local->xattr_req);
+            DHT_STACK_UNWIND(xattrop, frame, local->op_ret, op_errno,
+                             local->rebalance.dict, local->rebalance.xdata);
         } else {
-                STACK_WIND (frame, dht_common_xattrop_cbk, subvol,
-                            subvol->fops->fxattrop, local->fd,
-                            local->rebalance.flags, local->rebalance.xattr,
-                            local->xattr_req);
+            DHT_STACK_UNWIND(fxattrop, frame, local->op_ret, op_errno,
+                             local->rebalance.dict, local->rebalance.xdata);
         }
 
         return 0;
+    }
+
+    if (subvol == NULL)
+        goto out;
+
+    local->call_cnt = 2; /* This is the second attempt */
+
+    if (local->fop == GF_FOP_XATTROP) {
+        STACK_WIND(frame, dht_common_xattrop_cbk, subvol, subvol->fops->xattrop,
+                   &local->loc, local->rebalance.flags, local->rebalance.xattr,
+                   local->xattr_req);
+    } else {
+        STACK_WIND(frame, dht_common_xattrop_cbk, subvol,
+                   subvol->fops->fxattrop, local->fd, local->rebalance.flags,
+                   local->rebalance.xattr, local->xattr_req);
+    }
+
+    return 0;
 
 out:
 
-        /* If local is unavailable we could be unwinding the wrong
-         * function here */
+    /* If local is unavailable we could be unwinding the wrong
+     * function here */
 
-        if (local && (local->fop == GF_FOP_XATTROP)) {
-                DHT_STACK_UNWIND (xattrop, frame, -1, op_errno, NULL, NULL);
-        } else {
-                DHT_STACK_UNWIND (fxattrop, frame, -1, op_errno, NULL, NULL);
-        }
-        return 0;
+    if (local && (local->fop == GF_FOP_XATTROP)) {
+        DHT_STACK_UNWIND(xattrop, frame, -1, op_errno, NULL, NULL);
+    } else {
+        DHT_STACK_UNWIND(fxattrop, frame, -1, op_errno, NULL, NULL);
+    }
+    return 0;
 }
 
-
 int
-dht_xattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int32_t op_ret, int32_t op_errno, dict_t *dict, dict_t *xdata)
+dht_xattrop_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                int32_t op_ret, int32_t op_errno, dict_t *dict, dict_t *xdata)
 {
-        DHT_STACK_UNWIND (xattrop, frame, op_ret, op_errno, dict, xdata);
-        return 0;
+    DHT_STACK_UNWIND(xattrop, frame, op_ret, op_errno, dict, xdata);
+    return 0;
 }
 
-
 int
-dht_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc,
-             gf_xattrop_flags_t flags, dict_t *dict, dict_t *xdata)
+dht_xattrop(call_frame_t *frame, xlator_t *this, loc_t *loc,
+            gf_xattrop_flags_t flags, dict_t *dict, dict_t *xdata)
 {
-        xlator_t     *subvol   = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local    = NULL;
-        int           ret      = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_XATTROP);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for gfid=%s",
-                              uuid_utoa (loc->inode->gfid));
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        /* Todo : Handle dirs as well. At the moment the only xlator above dht
-         * that uses xattrop is sharding and that is only for files */
-
-        if (IA_ISDIR (loc->inode->ia_type)) {
-                STACK_WIND (frame, dht_xattrop_cbk, subvol,
-                            subvol->fops->xattrop, loc, flags, dict, xdata);
-
-        } else {
-                local->xattr_req = xdata ? dict_ref(xdata) : dict_new ();
-                local->call_cnt = 1;
-
-                local->rebalance.xattr = dict_ref (dict);
-                local->rebalance.flags = flags;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    int ret = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_XATTROP);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for gfid=%s",
+                     uuid_utoa(loc->inode->gfid));
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    /* Todo : Handle dirs as well. At the moment the only xlator above dht
+     * that uses xattrop is sharding and that is only for files */
+
+    if (IA_ISDIR(loc->inode->ia_type)) {
+        STACK_WIND(frame, dht_xattrop_cbk, subvol, subvol->fops->xattrop, loc,
+                   flags, dict, xdata);
+
+    } else {
+        local->xattr_req = xdata ? dict_ref(xdata) : dict_new();
+        local->call_cnt = 1;
 
-                ret = dht_request_iatt_in_xdata (this, local->xattr_req);
+        local->rebalance.xattr = dict_ref(dict);
+        local->rebalance.flags = flags;
 
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                      "Failed to set dictionary key %s file=%s",
-                                      DHT_IATT_IN_XDATA_KEY, loc->path);
-                }
+        ret = dht_request_iatt_in_xdata(this, local->xattr_req);
 
-                STACK_WIND (frame, dht_common_xattrop_cbk, subvol,
-                            subvol->fops->xattrop, loc,
-                            local->rebalance.flags, local->rebalance.xattr,
-                            local->xattr_req);
+        if (ret) {
+            gf_msg_debug(this->name, 0,
+                         "Failed to set dictionary key %s file=%s",
+                         DHT_IATT_IN_XDATA_KEY, loc->path);
         }
 
-        return 0;
+        STACK_WIND(frame, dht_common_xattrop_cbk, subvol, subvol->fops->xattrop,
+                   loc, local->rebalance.flags, local->rebalance.xattr,
+                   local->xattr_req);
+    }
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (xattrop, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(xattrop, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fxattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int32_t op_ret, int32_t op_errno, dict_t *dict, dict_t *xdata)
+dht_fxattrop_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                 int32_t op_ret, int32_t op_errno, dict_t *dict, dict_t *xdata)
 {
-        DHT_STACK_UNWIND (fxattrop, frame, op_ret, op_errno, dict, xdata);
-        return 0;
+    DHT_STACK_UNWIND(fxattrop, frame, op_ret, op_errno, dict, xdata);
+    return 0;
 }
 
-
 int
-dht_fxattrop (call_frame_t *frame, xlator_t *this,
-              fd_t *fd, gf_xattrop_flags_t flags, dict_t *dict, dict_t *xdata)
+dht_fxattrop(call_frame_t *frame, xlator_t *this, fd_t *fd,
+             gf_xattrop_flags_t flags, dict_t *dict, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local    = NULL;
-        int           ret      = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        subvol = dht_subvol_get_cached (this, fd->inode);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FXATTROP);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        /* Todo : Handle dirs as well. At the moment the only xlator above dht
-         * that uses xattrop is sharding and that is only for files */
-
-        if (IA_ISDIR (fd->inode->ia_type)) {
-                STACK_WIND (frame, dht_fxattrop_cbk, subvol,
-                            subvol->fops->fxattrop, fd, flags, dict, xdata);
-
-        } else {
-                local->xattr_req = xdata ? dict_ref(xdata) : dict_new ();
-                local->call_cnt = 1;
-
-                local->rebalance.xattr = dict_ref (dict);
-                local->rebalance.flags = flags;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    int ret = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    subvol = dht_subvol_get_cached(this, fd->inode);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FXATTROP);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    /* Todo : Handle dirs as well. At the moment the only xlator above dht
+     * that uses xattrop is sharding and that is only for files */
+
+    if (IA_ISDIR(fd->inode->ia_type)) {
+        STACK_WIND(frame, dht_fxattrop_cbk, subvol, subvol->fops->fxattrop, fd,
+                   flags, dict, xdata);
+
+    } else {
+        local->xattr_req = xdata ? dict_ref(xdata) : dict_new();
+        local->call_cnt = 1;
 
-                ret = dht_request_iatt_in_xdata (this, local->xattr_req);
+        local->rebalance.xattr = dict_ref(dict);
+        local->rebalance.flags = flags;
 
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                      "Failed to set dictionary key %s fd=%p",
-                                      DHT_IATT_IN_XDATA_KEY, fd);
-                }
+        ret = dht_request_iatt_in_xdata(this, local->xattr_req);
 
-                STACK_WIND (frame, dht_common_xattrop_cbk, subvol,
-                            subvol->fops->fxattrop, fd,
-                            local->rebalance.flags, local->rebalance.xattr,
-                            local->xattr_req);
+        if (ret) {
+            gf_msg_debug(this->name, 0, "Failed to set dictionary key %s fd=%p",
+                         DHT_IATT_IN_XDATA_KEY, fd);
         }
 
-        return 0;
+        STACK_WIND(frame, dht_common_xattrop_cbk, subvol,
+                   subvol->fops->fxattrop, fd, local->rebalance.flags,
+                   local->rebalance.xattr, local->xattr_req);
+    }
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fxattrop, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fxattrop, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 /* Currently no translators on top of 'distribute' will be using
@@ -1555,116 +1486,108 @@ err:
  */
 
 int
-dht_inodelk_cbk (call_frame_t *frame, void *cookie,
-                 xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_inodelk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                int32_t op_ret, int32_t op_errno, dict_t *xdata)
 
 {
-        dht_lk_inode_unref (frame, op_ret);
-        DHT_STACK_UNWIND (inodelk, frame, op_ret, op_errno, xdata);
-        return 0;
+    dht_lk_inode_unref(frame, op_ret);
+    DHT_STACK_UNWIND(inodelk, frame, op_ret, op_errno, xdata);
+    return 0;
 }
 
-
 int32_t
-dht_inodelk (call_frame_t *frame, xlator_t *this, const char *volume,
-             loc_t *loc, int32_t cmd, struct gf_flock *lock, dict_t *xdata)
+dht_inodelk(call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc,
+            int32_t cmd, struct gf_flock *lock, dict_t *xdata)
 {
-        xlator_t        *lock_subvol            = NULL;
-        int              op_errno               = -1;
-        dht_local_t     *local                  = NULL;
+    xlator_t *lock_subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_INODELK);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    local = dht_local_init(frame, loc, NULL, GF_FOP_INODELK);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        local->lock_type = lock->l_type;
-        lock_subvol = dht_get_lock_subvolume (this, lock, local);
-        if (!lock_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no lock subvolume for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
+    local->lock_type = lock->l_type;
+    lock_subvol = dht_get_lock_subvolume(this, lock, local);
+    if (!lock_subvol) {
+        gf_msg_debug(this->name, 0, "no lock subvolume for path=%s", loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        local->call_cnt = 1;
+    local->call_cnt = 1;
 
-        STACK_WIND (frame, dht_inodelk_cbk,
-                    lock_subvol, lock_subvol->fops->inodelk,
-                    volume, loc, cmd, lock, xdata);
+    STACK_WIND(frame, dht_inodelk_cbk, lock_subvol, lock_subvol->fops->inodelk,
+               volume, loc, cmd, lock, xdata);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (inodelk, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(inodelk, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_finodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_finodelk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                 int32_t op_ret, int32_t op_errno, dict_t *xdata)
 
 {
-        dht_lk_inode_unref (frame, op_ret);
-        DHT_STACK_UNWIND (finodelk, frame, op_ret, op_errno, xdata);
-        return 0;
+    dht_lk_inode_unref(frame, op_ret);
+    DHT_STACK_UNWIND(finodelk, frame, op_ret, op_errno, xdata);
+    return 0;
 }
 
-
 int
-dht_finodelk (call_frame_t *frame, xlator_t *this, const char *volume,
-              fd_t *fd, int32_t cmd, struct gf_flock *lock, dict_t *xdata)
+dht_finodelk(call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd,
+             int32_t cmd, struct gf_flock *lock, dict_t *xdata)
 {
-        xlator_t     *lock_subvol       = NULL;
-        dht_local_t  *local             = NULL;
-        int           op_errno          = -1;
-
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_INODELK);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->call_cnt = 1;
-        local->lock_type = lock->l_type;
-
-        lock_subvol = dht_get_lock_subvolume (this, lock, local);
-        if (!lock_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no lock subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-/*
-        local->cached_subvol = lock_subvol;
-        ret = dht_check_and_open_fd_on_subvol (this, frame);
-        if (ret)
-                goto err;
-*/
-        STACK_WIND (frame, dht_finodelk_cbk, lock_subvol,
-                    lock_subvol->fops->finodelk,
-                    volume, fd, cmd, lock, xdata);
-
-        return 0;
+    xlator_t *lock_subvol = NULL;
+    dht_local_t *local = NULL;
+    int op_errno = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_INODELK);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->call_cnt = 1;
+    local->lock_type = lock->l_type;
+
+    lock_subvol = dht_get_lock_subvolume(this, lock, local);
+    if (!lock_subvol) {
+        gf_msg_debug(this->name, 0, "no lock subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    /*
+            local->cached_subvol = lock_subvol;
+            ret = dht_check_and_open_fd_on_subvol (this, frame);
+            if (ret)
+                    goto err;
+    */
+    STACK_WIND(frame, dht_finodelk_cbk, lock_subvol,
+               lock_subvol->fops->finodelk, volume, fd, cmd, lock, xdata);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (finodelk, frame, -1, op_errno, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(finodelk, frame, -1, op_errno, NULL);
 
-        return 0;
+    return 0;
 }
diff --git a/xlators/cluster/dht/src/dht-inode-write.c b/xlators/cluster/dht/src/dht-inode-write.c
index 4b4f2c2d4a3..d0d12fd7658 100644
--- a/xlators/cluster/dht/src/dht-inode-write.c
+++ b/xlators/cluster/dht/src/dht-inode-write.c
@@ -8,1487 +8,1401 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "dht-common.h"
 
-int dht_writev2 (xlator_t *this, xlator_t *subvol,
-                 call_frame_t *frame, int ret);
-int dht_truncate2 (xlator_t *this, xlator_t *subvol,
-                   call_frame_t *frame, int ret);
-int dht_setattr2 (xlator_t *this, xlator_t *subvol,
-                  call_frame_t *frame, int ret);
-int dht_fallocate2 (xlator_t *this, xlator_t *subvol,
-                    call_frame_t *frame, int ret);
-int dht_discard2 (xlator_t *this, xlator_t *subvol,
-                  call_frame_t *frame, int ret);
-int dht_zerofill2 (xlator_t *this, xlator_t *subvol,
-                   call_frame_t *frame, int ret);
+int
+dht_writev2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret);
+int
+dht_truncate2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret);
+int
+dht_setattr2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret);
+int
+dht_fallocate2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret);
+int
+dht_discard2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret);
+int
+dht_zerofill2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret);
 
 int
-dht_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, struct iatt *prebuf,
-                struct iatt *postbuf, dict_t *xdata)
+dht_writev_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+               int op_errno, struct iatt *prebuf, struct iatt *postbuf,
+               dict_t *xdata)
 {
-        dht_local_t *local = NULL;
-        xlator_t    *prev = NULL;
-        int          ret   = -1;
-        xlator_t    *subvol1 = NULL;
-        xlator_t    *subvol2 = NULL;
-
-        local = frame->local;
-        prev = cookie;
-
-        if (!local) {
-                op_ret = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
-
-        /* writev fails with EBADF if dht has not yet opened the fd
-         * on the cached subvol. This could happen if the file was migrated
-         * and a lookup updated the cached subvol in the inode ctx.
-         * We only check once as this could be a valid bad fd error.
-         */
-
-        if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    xlator_t *subvol1 = NULL;
+    xlator_t *subvol2 = NULL;
+
+    local = frame->local;
+    prev = cookie;
+
+    if (!local) {
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
+
+    /* writev fails with EBADF if dht has not yet opened the fd
+     * on the cached subvol. This could happen if the file was migrated
+     * and a lookup updated the cached subvol in the inode ctx.
+     * We only check once as this could be a valid bad fd error.
+     */
+
+    if (op_ret == -1 && (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        if (op_ret == -1 && !dht_inode_missing(op_errno)) {
-                local->op_errno = op_errno;
-                local->op_ret = -1;
-                gf_msg_debug (this->name, 0,
-                              "subvolume %s returned -1 (%s)",
-                              prev->name, strerror (op_errno));
-                goto out;
+    if (op_ret == -1 && !dht_inode_missing(op_errno)) {
+        local->op_errno = op_errno;
+        local->op_ret = -1;
+        gf_msg_debug(this->name, 0, "subvolume %s returned -1 (%s)", prev->name,
+                     strerror(op_errno));
+        goto out;
+    }
+
+    if (local->call_cnt != 1) {
+        /* preserve the modes of source */
+        if (local->stbuf.ia_blocks) {
+            dht_iatt_merge(this, postbuf, &local->stbuf);
+            dht_iatt_merge(this, prebuf, &local->prebuf);
         }
-
-        if (local->call_cnt != 1) {
-                /* preserve the modes of source */
-                if (local->stbuf.ia_blocks) {
-                        dht_iatt_merge (this, postbuf, &local->stbuf);
-                        dht_iatt_merge (this, prebuf, &local->prebuf);
+        goto out;
+    }
+
+    local->rebalance.target_op_fn = dht_writev2;
+
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
+
+    /* We might need to pass the stbuf information to the higher DHT
+     * layer for appropriate handling.
+     */
+
+    dht_set_local_rebalance(this, local, NULL, prebuf, postbuf, xdata);
+
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(postbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
+
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(postbuf)) {
+        if (!dht_is_tier_xlator(this)) {
+            if (!local->xattr_req) {
+                local->xattr_req = dict_new();
+                if (!local->xattr_req) {
+                    gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, ENOMEM,
+                           "insufficient memory");
+                    local->op_errno = ENOMEM;
+                    local->op_ret = -1;
+                    goto out;
                 }
+            }
+
+            ret = dict_set_uint32(local->xattr_req,
+                                  GF_PROTECT_FROM_EXTERNAL_WRITES, 1);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_DICT_SET_FAILED, 0,
+                       "Failed to set key %s in dictionary",
+                       GF_PROTECT_FROM_EXTERNAL_WRITES);
+                local->op_errno = ENOMEM;
+                local->op_ret = -1;
                 goto out;
+            }
         }
 
-        local->rebalance.target_op_fn = dht_writev2;
-
-        local->op_ret = op_ret;
-        local->op_errno = op_errno;
-
-        /* We might need to pass the stbuf information to the higher DHT
-         * layer for appropriate handling.
-         */
-
-        dht_set_local_rebalance (this, local, NULL, prebuf, postbuf, xdata);
-
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (postbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
-
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (postbuf)) {
-                if (!dht_is_tier_xlator (this)) {
-                        if (!local->xattr_req) {
-                                local->xattr_req = dict_new ();
-                                if (!local->xattr_req) {
-                                        gf_msg (this->name, GF_LOG_ERROR,
-                                                DHT_MSG_NO_MEMORY,
-                                                ENOMEM, "insufficient memory");
-                                        local->op_errno = ENOMEM;
-                                        local->op_ret = -1;
-                                        goto out;
-                                }
-                        }
-
-                        ret = dict_set_uint32 (local->xattr_req,
-                                               GF_PROTECT_FROM_EXTERNAL_WRITES,
-                                               1);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR,
-                                        DHT_MSG_DICT_SET_FAILED, 0,
-                                        "Failed to set key %s in dictionary",
-                                        GF_PROTECT_FROM_EXTERNAL_WRITES);
-                                local->op_errno = ENOMEM;
-                                local->op_ret = -1;
-                                goto out;
-                        }
-                }
+        dht_iatt_merge(this, &local->stbuf, postbuf);
+        dht_iatt_merge(this, &local->prebuf, prebuf);
 
-                dht_iatt_merge (this, &local->stbuf, postbuf);
-                dht_iatt_merge (this, &local->prebuf, prebuf);
-
-                ret = dht_inode_ctx_get_mig_info (this, local->fd->inode,
-                                                  &subvol1, &subvol2);
-                if (!dht_mig_info_is_invalid (local->cached_subvol,
-                                              subvol1, subvol2)) {
-                        if (dht_fd_open_on_dst (this, local->fd, subvol2)) {
-                                dht_writev2 (this, subvol2, frame, 0);
-                                return 0;
-                        }
-                }
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
+        ret = dht_inode_ctx_get_mig_info(this, local->fd->inode, &subvol1,
+                                         &subvol2);
+        if (!dht_mig_info_is_invalid(local->cached_subvol, subvol1, subvol2)) {
+            if (dht_fd_open_on_dst(this, local->fd, subvol2)) {
+                dht_writev2(this, subvol2, frame, 0);
+                return 0;
+            }
         }
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (postbuf);
-        DHT_STRIP_PHASE1_FLAGS (prebuf);
+    DHT_STRIP_PHASE1_FLAGS(postbuf);
+    DHT_STRIP_PHASE1_FLAGS(prebuf);
 
-        DHT_STACK_UNWIND (writev, frame, op_ret, op_errno, prebuf, postbuf,
-                          xdata);
+    DHT_STACK_UNWIND(writev, frame, op_ret, op_errno, prebuf, postbuf, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_writev2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_writev2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if ((frame == NULL) || (frame->local == NULL))
-                goto out;
+    if ((frame == NULL) || (frame->local == NULL))
+        goto out;
 
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (writev, frame, local->op_ret,
-                                  local->op_errno, &local->rebalance.prebuf,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
-                return 0;
-        }
+    local = frame->local;
+    op_errno = local->op_errno;
 
-        if (subvol == NULL)
-                goto out;
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(writev, frame, local->op_ret, local->op_errno,
+                         &local->rebalance.prebuf, &local->rebalance.postbuf,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        local->call_cnt = 2; /* This is the second attempt */
+    if (subvol == NULL)
+        goto out;
 
-        STACK_WIND_COOKIE (frame, dht_writev_cbk, subvol,
-                           subvol, subvol->fops->writev,
-                           local->fd, local->rebalance.vector,
-                           local->rebalance.count,
-                           local->rebalance.offset, local->rebalance.flags,
-                           local->rebalance.iobref, local->xattr_req);
+    local->call_cnt = 2; /* This is the second attempt */
 
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_writev_cbk, subvol, subvol,
+                      subvol->fops->writev, local->fd, local->rebalance.vector,
+                      local->rebalance.count, local->rebalance.offset,
+                      local->rebalance.flags, local->rebalance.iobref,
+                      local->xattr_req);
+
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL);
+    DHT_STACK_UNWIND(writev, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
-            struct iovec *vector, int count, off_t off, uint32_t flags,
-            struct iobref *iobref, dict_t *xdata)
+dht_writev(call_frame_t *frame, xlator_t *this, fd_t *fd, struct iovec *vector,
+           int count, off_t off, uint32_t flags, struct iobref *iobref,
+           dict_t *xdata)
 {
-        xlator_t     *subvol   = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local    = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_WRITE);
-        if (!local) {
-
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        local->rebalance.vector = iov_dup (vector, count);
-        local->rebalance.offset = off;
-        local->rebalance.count = count;
-        local->rebalance.flags = flags;
-        local->rebalance.iobref = iobref_ref (iobref);
-        local->call_cnt = 1;
-
-        STACK_WIND_COOKIE (frame, dht_writev_cbk, subvol, subvol,
-                           subvol->fops->writev, fd,
-                           local->rebalance.vector,
-                           local->rebalance.count,
-                           local->rebalance.offset,
-                           local->rebalance.flags,
-                           local->rebalance.iobref, local->xattr_req);
-
-        return 0;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_WRITE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    local->rebalance.vector = iov_dup(vector, count);
+    local->rebalance.offset = off;
+    local->rebalance.count = count;
+    local->rebalance.flags = flags;
+    local->rebalance.iobref = iobref_ref(iobref);
+    local->call_cnt = 1;
+
+    STACK_WIND_COOKIE(frame, dht_writev_cbk, subvol, subvol,
+                      subvol->fops->writev, fd, local->rebalance.vector,
+                      local->rebalance.count, local->rebalance.offset,
+                      local->rebalance.flags, local->rebalance.iobref,
+                      local->xattr_req);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(writev, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
-
 int
-dht_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                  int op_ret, int op_errno, struct iatt *prebuf,
-                  struct iatt *postbuf, dict_t *xdata)
+dht_truncate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, struct iatt *prebuf, struct iatt *postbuf,
+                 dict_t *xdata)
 {
-        dht_local_t  *local      = NULL;
-        xlator_t     *prev       = NULL;
-        int           ret        = -1;
-        xlator_t     *src_subvol = NULL;
-        xlator_t     *dst_subvol = NULL;
-        inode_t      *inode      = NULL;
-
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
-
-        local = frame->local;
-        prev = cookie;
-
-        /* Needs to be checked only for ftruncate.
-         * ftruncate fails with EBADF/EINVAL if dht has not yet opened the fd
-         * on the cached subvol. This could happen if the file was migrated
-         * and a lookup updated the cached subvol in the inode ctx.
-         * We only check once as this could actually be a valid error.
-         */
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    xlator_t *src_subvol = NULL;
+    xlator_t *dst_subvol = NULL;
+    inode_t *inode = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+
+    local = frame->local;
+    prev = cookie;
+
+    /* Needs to be checked only for ftruncate.
+     * ftruncate fails with EBADF/EINVAL if dht has not yet opened the fd
+     * on the cached subvol. This could happen if the file was migrated
+     * and a lookup updated the cached subvol in the inode ctx.
+     * We only check once as this could actually be a valid error.
+     */
+
+    if ((local->fop == GF_FOP_FTRUNCATE) && (op_ret == -1) &&
+        ((op_errno == EBADF) || (op_errno == EINVAL)) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        if ((local->fop == GF_FOP_FTRUNCATE) && (op_ret == -1)
-             && ((op_errno == EBADF) || (op_errno == EINVAL))
-             && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
+        local->op_errno = op_errno;
+        local->op_ret = -1;
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
 
-        if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
-                local->op_errno = op_errno;
-                local->op_ret = -1;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
+        goto out;
+    }
 
-                goto out;
+    if (local->call_cnt != 1) {
+        if (local->stbuf.ia_blocks) {
+            dht_iatt_merge(this, postbuf, &local->stbuf);
+            dht_iatt_merge(this, prebuf, &local->prebuf);
         }
+        goto out;
+    }
 
+    local->rebalance.target_op_fn = dht_truncate2;
 
-        if (local->call_cnt != 1) {
-                if (local->stbuf.ia_blocks) {
-                        dht_iatt_merge (this, postbuf, &local->stbuf);
-                        dht_iatt_merge (this, prebuf, &local->prebuf);
-                }
-                goto out;
-        }
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
 
-        local->rebalance.target_op_fn = dht_truncate2;
+    /* We might need to pass the stbuf information to the higher DHT
+     * layer for appropriate handling.
+     */
 
-        local->op_ret = op_ret;
-        local->op_errno = op_errno;
+    dht_set_local_rebalance(this, local, NULL, prebuf, postbuf, xdata);
 
-        /* We might need to pass the stbuf information to the higher DHT
-         * layer for appropriate handling.
-         */
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(postbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
-        dht_set_local_rebalance (this, local, NULL, prebuf, postbuf, xdata);
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(postbuf)) {
+        dht_iatt_merge(this, &local->stbuf, postbuf);
+        dht_iatt_merge(this, &local->prebuf, prebuf);
 
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (postbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
+        inode = (local->fd) ? local->fd->inode : local->loc.inode;
 
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (postbuf)) {
-                dht_iatt_merge (this, &local->stbuf, postbuf);
-                dht_iatt_merge (this, &local->prebuf, prebuf);
-
-                inode = (local->fd) ? local->fd->inode : local->loc.inode;
-
-                dht_inode_ctx_get_mig_info (this, inode, &src_subvol,
-                                            &dst_subvol);
-                if (!dht_mig_info_is_invalid (local->cached_subvol,
-                                              src_subvol, dst_subvol)) {
-                        if ((!local->fd) || ((local->fd) &&
-                            dht_fd_open_on_dst (this, local->fd, dst_subvol))) {
-                                dht_truncate2 (this, dst_subvol, frame, 0);
-                                return 0;
-                        }
-                }
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
+        dht_inode_ctx_get_mig_info(this, inode, &src_subvol, &dst_subvol);
+        if (!dht_mig_info_is_invalid(local->cached_subvol, src_subvol,
+                                     dst_subvol)) {
+            if ((!local->fd) ||
+                ((local->fd) &&
+                 dht_fd_open_on_dst(this, local->fd, dst_subvol))) {
+                dht_truncate2(this, dst_subvol, frame, 0);
+                return 0;
+            }
         }
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (postbuf);
-        DHT_STRIP_PHASE1_FLAGS (prebuf);
+    DHT_STRIP_PHASE1_FLAGS(postbuf);
+    DHT_STRIP_PHASE1_FLAGS(prebuf);
 
-        DHT_STACK_UNWIND (truncate, frame, op_ret, op_errno,
-                          prebuf, postbuf, xdata);
+    DHT_STACK_UNWIND(truncate, frame, op_ret, op_errno, prebuf, postbuf, xdata);
 err:
-        return 0;
+    return 0;
 }
 
-
 int
-dht_truncate2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_truncate2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if (!frame || !frame->local)
-                goto out;
+    if (!frame || !frame->local)
+        goto out;
 
-        local = frame->local;
-        op_errno = local->op_errno;
+    local = frame->local;
+    op_errno = local->op_errno;
 
-        /* This dht xlator is not migrating the file  */
-        if (we_are_not_migrating (ret)) {
-
-                DHT_STACK_UNWIND (truncate, frame, local->op_ret,
-                                  local->op_errno, &local->rebalance.prebuf,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
-                return 0;
-        }
+    /* This dht xlator is not migrating the file  */
+    if (we_are_not_migrating(ret)) {
+        DHT_STACK_UNWIND(truncate, frame, local->op_ret, local->op_errno,
+                         &local->rebalance.prebuf, &local->rebalance.postbuf,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2; /* This is the second attempt */
+    local->call_cnt = 2; /* This is the second attempt */
 
-        if (local->fop == GF_FOP_TRUNCATE) {
-                STACK_WIND_COOKIE (frame, dht_truncate_cbk, subvol, subvol,
-                                   subvol->fops->truncate, &local->loc,
-                                   local->rebalance.offset, local->xattr_req);
-        } else {
-                STACK_WIND_COOKIE (frame, dht_truncate_cbk, subvol, subvol,
-                                   subvol->fops->ftruncate, local->fd,
-                                   local->rebalance.offset, local->xattr_req);
-        }
+    if (local->fop == GF_FOP_TRUNCATE) {
+        STACK_WIND_COOKIE(frame, dht_truncate_cbk, subvol, subvol,
+                          subvol->fops->truncate, &local->loc,
+                          local->rebalance.offset, local->xattr_req);
+    } else {
+        STACK_WIND_COOKIE(frame, dht_truncate_cbk, subvol, subvol,
+                          subvol->fops->ftruncate, local->fd,
+                          local->rebalance.offset, local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (truncate, frame, -1, op_errno, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(truncate, frame, -1, op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-dht_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset,
-              dict_t *xdata)
+dht_truncate(call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset,
+             dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_TRUNCATE);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->rebalance.offset = offset;
-        local->call_cnt = 1;
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for gfid=%s",
-                              uuid_utoa (loc->inode->gfid));
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        STACK_WIND_COOKIE (frame, dht_truncate_cbk, subvol, subvol,
-                           subvol->fops->truncate, loc, offset, xdata);
-
-        return 0;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_TRUNCATE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->rebalance.offset = offset;
+    local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for gfid=%s",
+                     uuid_utoa(loc->inode->gfid));
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    STACK_WIND_COOKIE(frame, dht_truncate_cbk, subvol, subvol,
+                      subvol->fops->truncate, loc, offset, xdata);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (truncate, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(truncate, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
-               dict_t *xdata)
+dht_ftruncate(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+              dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FTRUNCATE);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->rebalance.offset = offset;
-        local->call_cnt = 1;
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        STACK_WIND_COOKIE (frame, dht_truncate_cbk, subvol, subvol,
-                           subvol->fops->ftruncate, fd,
-                           local->rebalance.offset, local->xattr_req);
-        return 0;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FTRUNCATE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->rebalance.offset = offset;
+    local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    STACK_WIND_COOKIE(frame, dht_truncate_cbk, subvol, subvol,
+                      subvol->fops->ftruncate, fd, local->rebalance.offset,
+                      local->xattr_req);
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (ftruncate, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(ftruncate, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fallocate_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
-                  int op_ret, int op_errno, struct iatt *prebuf,
-                  struct iatt *postbuf, dict_t *xdata)
+dht_fallocate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                  int op_errno, struct iatt *prebuf, struct iatt *postbuf,
+                  dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        int           ret = -1;
-        xlator_t    *src_subvol = NULL;
-        xlator_t    *dst_subvol = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
-
-        local = frame->local;
-        prev = cookie;
-
-        /* fallocate fails with EBADF if dht has not yet opened the fd
-         * on the cached subvol. This could happen if the file was migrated
-         * and a lookup updated the cached subvol in the inode ctx.
-         * We only check once as this could actually be a valid error.
-         */
-
-        if ((op_ret == -1) && (op_errno == EBADF)
-             && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
-
-        if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
-                local->op_errno = op_errno;
-                local->op_ret = -1;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-
-                goto out;
-        }
-
-        if (local->call_cnt != 1) {
-                if (local->stbuf.ia_blocks) {
-                        dht_iatt_merge (this, postbuf, &local->stbuf);
-                        dht_iatt_merge (this, prebuf, &local->prebuf);
-                }
-                goto out;
-        }
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    xlator_t *src_subvol = NULL;
+    xlator_t *dst_subvol = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+
+    local = frame->local;
+    prev = cookie;
+
+    /* fallocate fails with EBADF if dht has not yet opened the fd
+     * on the cached subvol. This could happen if the file was migrated
+     * and a lookup updated the cached subvol in the inode ctx.
+     * We only check once as this could actually be a valid error.
+     */
+
+    if ((op_ret == -1) && (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        local->op_ret = op_ret;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
         local->op_errno = op_errno;
-        local->rebalance.target_op_fn = dht_fallocate2;
+        local->op_ret = -1;
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
 
-        dht_set_local_rebalance (this, local, NULL, prebuf, postbuf, xdata);
+        goto out;
+    }
 
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (postbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
+    if (local->call_cnt != 1) {
+        if (local->stbuf.ia_blocks) {
+            dht_iatt_merge(this, postbuf, &local->stbuf);
+            dht_iatt_merge(this, prebuf, &local->prebuf);
         }
-
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (postbuf)) {
-                dht_iatt_merge (this, &local->stbuf, postbuf);
-                dht_iatt_merge (this, &local->prebuf, prebuf);
-
-                dht_inode_ctx_get_mig_info (this, local->fd->inode, &src_subvol,
-                                            &dst_subvol);
-                if (!dht_mig_info_is_invalid (local->cached_subvol,
-                                              src_subvol, dst_subvol)) {
-                        if (dht_fd_open_on_dst (this, local->fd, dst_subvol)) {
-                                dht_fallocate2 (this, dst_subvol, frame, 0);
-                                return 0;
-                        }
-                }
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
+        goto out;
+    }
+
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
+    local->rebalance.target_op_fn = dht_fallocate2;
+
+    dht_set_local_rebalance(this, local, NULL, prebuf, postbuf, xdata);
+
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(postbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
+
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(postbuf)) {
+        dht_iatt_merge(this, &local->stbuf, postbuf);
+        dht_iatt_merge(this, &local->prebuf, prebuf);
+
+        dht_inode_ctx_get_mig_info(this, local->fd->inode, &src_subvol,
+                                   &dst_subvol);
+        if (!dht_mig_info_is_invalid(local->cached_subvol, src_subvol,
+                                     dst_subvol)) {
+            if (dht_fd_open_on_dst(this, local->fd, dst_subvol)) {
+                dht_fallocate2(this, dst_subvol, frame, 0);
+                return 0;
+            }
         }
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (postbuf);
-        DHT_STRIP_PHASE1_FLAGS (prebuf);
+    DHT_STRIP_PHASE1_FLAGS(postbuf);
+    DHT_STRIP_PHASE1_FLAGS(prebuf);
 
-        DHT_STACK_UNWIND (fallocate, frame, op_ret, op_errno,
-                          prebuf, postbuf, xdata);
+    DHT_STACK_UNWIND(fallocate, frame, op_ret, op_errno, prebuf, postbuf,
+                     xdata);
 err:
-        return 0;
+    return 0;
 }
 
 int
-dht_fallocate2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_fallocate2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if (!frame || !frame->local)
-                goto out;
+    if (!frame || !frame->local)
+        goto out;
 
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (fallocate, frame, local->op_ret,
-                                  local->op_errno,
-                                  &local->rebalance.prebuf,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
-                return 0;
-        }
+    local = frame->local;
+    op_errno = local->op_errno;
 
-        if (subvol == NULL)
-                goto out;
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(fallocate, frame, local->op_ret, local->op_errno,
+                         &local->rebalance.prebuf, &local->rebalance.postbuf,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        local->call_cnt = 2; /* This is the second attempt */
+    if (subvol == NULL)
+        goto out;
 
-	STACK_WIND_COOKIE (frame, dht_fallocate_cbk, subvol, subvol,
-                           subvol->fops->fallocate, local->fd,
-                           local->rebalance.flags, local->rebalance.offset,
-		           local->rebalance.size, local->xattr_req);
+    local->call_cnt = 2; /* This is the second attempt */
 
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_fallocate_cbk, subvol, subvol,
+                      subvol->fops->fallocate, local->fd,
+                      local->rebalance.flags, local->rebalance.offset,
+                      local->rebalance.size, local->xattr_req);
+
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(fallocate, frame, -1, op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-dht_fallocate (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode,
-	      off_t offset, size_t len, dict_t *xdata)
+dht_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode,
+              off_t offset, size_t len, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FALLOCATE);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-	local->rebalance.flags = mode;
-        local->rebalance.offset = offset;
-	local->rebalance.size = len;
-
-        local->call_cnt = 1;
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        STACK_WIND_COOKIE (frame, dht_fallocate_cbk, subvol, subvol,
-                           subvol->fops->fallocate, fd,
-                           local->rebalance.flags,
-                           local->rebalance.offset,
-                           local->rebalance.size,
-                           local->xattr_req);
-
-        return 0;
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FALLOCATE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->rebalance.flags = mode;
+    local->rebalance.offset = offset;
+    local->rebalance.size = len;
+
+    local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    STACK_WIND_COOKIE(frame, dht_fallocate_cbk, subvol, subvol,
+                      subvol->fops->fallocate, fd, local->rebalance.flags,
+                      local->rebalance.offset, local->rebalance.size,
+                      local->xattr_req);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fallocate, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_discard_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, struct iatt *prebuf,
-                struct iatt *postbuf, dict_t *xdata)
+dht_discard_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, struct iatt *prebuf, struct iatt *postbuf,
+                dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        int           ret = -1;
-        xlator_t    *src_subvol = NULL;
-        xlator_t    *dst_subvol = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
-
-        local = frame->local;
-        prev = cookie;
-
-
-        /* discard fails with EBADF if dht has not yet opened the fd
-         * on the cached subvol. This could happen if the file was migrated
-         * and a lookup updated the cached subvol in the inode ctx.
-         * We only check once as this could actually be a valid error.
-         */
-        if ((op_ret == -1) && (op_errno == EBADF)
-             && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
-
-        if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
-                local->op_errno = op_errno;
-                local->op_ret = -1;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-
-                goto out;
-        }
-
-        if (local->call_cnt != 1) {
-                if (local->stbuf.ia_blocks) {
-                        dht_iatt_merge (this, postbuf, &local->stbuf);
-                        dht_iatt_merge (this, prebuf, &local->prebuf);
-                }
-                goto out;
-        }
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    xlator_t *src_subvol = NULL;
+    xlator_t *dst_subvol = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+
+    local = frame->local;
+    prev = cookie;
+
+    /* discard fails with EBADF if dht has not yet opened the fd
+     * on the cached subvol. This could happen if the file was migrated
+     * and a lookup updated the cached subvol in the inode ctx.
+     * We only check once as this could actually be a valid error.
+     */
+    if ((op_ret == -1) && (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        local->rebalance.target_op_fn = dht_discard2;
-        local->op_ret = op_ret;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
         local->op_errno = op_errno;
+        local->op_ret = -1;
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
 
-        dht_set_local_rebalance (this, local, NULL, prebuf, postbuf, xdata);
+        goto out;
+    }
 
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (postbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
+    if (local->call_cnt != 1) {
+        if (local->stbuf.ia_blocks) {
+            dht_iatt_merge(this, postbuf, &local->stbuf);
+            dht_iatt_merge(this, prebuf, &local->prebuf);
         }
-
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (postbuf)) {
-                dht_iatt_merge (this, &local->stbuf, postbuf);
-                dht_iatt_merge (this, &local->prebuf, prebuf);
-
-                dht_inode_ctx_get_mig_info (this, local->fd->inode, &src_subvol,
-                                            &dst_subvol);
-                if (!dht_mig_info_is_invalid(local->cached_subvol,
-                                             src_subvol, dst_subvol)) {
-                        if (dht_fd_open_on_dst (this, local->fd, dst_subvol)) {
-                                dht_discard2 (this, dst_subvol, frame, 0);
-                                return 0;
-                        }
-                }
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
+        goto out;
+    }
+
+    local->rebalance.target_op_fn = dht_discard2;
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
+
+    dht_set_local_rebalance(this, local, NULL, prebuf, postbuf, xdata);
+
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(postbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
+
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(postbuf)) {
+        dht_iatt_merge(this, &local->stbuf, postbuf);
+        dht_iatt_merge(this, &local->prebuf, prebuf);
+
+        dht_inode_ctx_get_mig_info(this, local->fd->inode, &src_subvol,
+                                   &dst_subvol);
+        if (!dht_mig_info_is_invalid(local->cached_subvol, src_subvol,
+                                     dst_subvol)) {
+            if (dht_fd_open_on_dst(this, local->fd, dst_subvol)) {
+                dht_discard2(this, dst_subvol, frame, 0);
+                return 0;
+            }
         }
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (postbuf);
-        DHT_STRIP_PHASE1_FLAGS (prebuf);
+    DHT_STRIP_PHASE1_FLAGS(postbuf);
+    DHT_STRIP_PHASE1_FLAGS(prebuf);
 
-        DHT_STACK_UNWIND (discard, frame, op_ret, op_errno,
-                          prebuf, postbuf, xdata);
+    DHT_STACK_UNWIND(discard, frame, op_ret, op_errno, prebuf, postbuf, xdata);
 err:
-        return 0;
+    return 0;
 }
 
 int
-dht_discard2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_discard2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if (!frame || !frame->local)
-                goto out;
+    if (!frame || !frame->local)
+        goto out;
 
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (discard, frame, local->op_ret,
-                                  local->op_errno,
-                                  &local->rebalance.prebuf,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
-                return 0;
-        }
+    local = frame->local;
+    op_errno = local->op_errno;
 
-        if (subvol == NULL)
-                goto out;
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(discard, frame, local->op_ret, local->op_errno,
+                         &local->rebalance.prebuf, &local->rebalance.postbuf,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        local->call_cnt = 2; /* This is the second attempt */
+    if (subvol == NULL)
+        goto out;
 
-	STACK_WIND_COOKIE (frame, dht_discard_cbk, subvol, subvol,
-                           subvol->fops->discard, local->fd,
-                           local->rebalance.offset, local->rebalance.size,
-		           local->xattr_req);
+    local->call_cnt = 2; /* This is the second attempt */
 
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_discard_cbk, subvol, subvol,
+                      subvol->fops->discard, local->fd, local->rebalance.offset,
+                      local->rebalance.size, local->xattr_req);
+
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (discard, frame, -1, op_errno, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(discard, frame, -1, op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-dht_discard (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
-	    size_t len, dict_t *xdata)
+dht_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+            size_t len, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        int           op_errno = -1;
-        dht_local_t  *local = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_DISCARD);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        local->rebalance.offset = offset;
-	local->rebalance.size = len;
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
 
-        local->call_cnt = 1;
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
+    local = dht_local_init(frame, NULL, fd, GF_FOP_DISCARD);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
+    local->rebalance.offset = offset;
+    local->rebalance.size = len;
 
-        STACK_WIND_COOKIE (frame, dht_discard_cbk, subvol, subvol,
-                           subvol->fops->discard, fd,
-                           local->rebalance.offset,
-                           local->rebalance.size,
-                           local->xattr_req);
+    local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        return 0;
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    STACK_WIND_COOKIE(frame, dht_discard_cbk, subvol, subvol,
+                      subvol->fops->discard, fd, local->rebalance.offset,
+                      local->rebalance.size, local->xattr_req);
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (discard, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(discard, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_zerofill_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, struct iatt *prebuf,
-                struct iatt *postbuf, dict_t *xdata)
+dht_zerofill_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, struct iatt *prebuf, struct iatt *postbuf,
+                 dict_t *xdata)
 {
-        dht_local_t  *local   = NULL;
-        xlator_t     *prev    = NULL;
-        int           ret     = -1;
-        xlator_t     *subvol1 = NULL, *subvol2 = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-        GF_VALIDATE_OR_GOTO ("dht", cookie, out);
-
-        local = frame->local;
-        prev = cookie;
-
-        /* zerofill fails with EBADF if dht has not yet opened the fd
-         * on the cached subvol. This could happen if the file was migrated
-         * and a lookup updated the cached subvol in the inode ctx.
-         * We only check once as this could actually be a valid error.
-         */
-        if ((op_ret == -1) && (op_errno == EBADF)
-             && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
-
-        if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
-                local->op_errno = op_errno;
-                local->op_ret = -1;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-                goto out;
-        }
-
-        if (local->call_cnt != 1) {
-                if (local->stbuf.ia_blocks) {
-                        dht_iatt_merge (this, postbuf, &local->stbuf);
-                        dht_iatt_merge (this, prebuf, &local->prebuf);
-                }
-                goto out;
-        }
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    xlator_t *subvol1 = NULL, *subvol2 = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+    GF_VALIDATE_OR_GOTO("dht", cookie, out);
+
+    local = frame->local;
+    prev = cookie;
+
+    /* zerofill fails with EBADF if dht has not yet opened the fd
+     * on the cached subvol. This could happen if the file was migrated
+     * and a lookup updated the cached subvol in the inode ctx.
+     * We only check once as this could actually be a valid error.
+     */
+    if ((op_ret == -1) && (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        local->rebalance.target_op_fn = dht_zerofill2;
-        local->op_ret = op_ret;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
         local->op_errno = op_errno;
-
-        dht_set_local_rebalance (this, local, NULL, prebuf, postbuf, xdata);
-
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (postbuf)) {
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
+        local->op_ret = -1;
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
+        goto out;
+    }
+
+    if (local->call_cnt != 1) {
+        if (local->stbuf.ia_blocks) {
+            dht_iatt_merge(this, postbuf, &local->stbuf);
+            dht_iatt_merge(this, prebuf, &local->prebuf);
         }
-
-        /* Check if the rebalance phase1 is true */
-        if (IS_DHT_MIGRATION_PHASE1 (postbuf)) {
-                dht_iatt_merge (this, &local->stbuf, postbuf);
-                dht_iatt_merge (this, &local->prebuf, prebuf);
-
-                ret = dht_inode_ctx_get_mig_info (this, local->fd->inode,
-                                                  &subvol1, &subvol2);
-                if (!dht_mig_info_is_invalid (local->cached_subvol,
-                                              subvol1, subvol2)) {
-                        if (dht_fd_open_on_dst (this, local->fd, subvol2)) {
-                                dht_zerofill2 (this, subvol2, frame, 0);
-                                return 0;
-                        }
-                }
-
-                ret = dht_rebalance_in_progress_check (this, frame);
-                if (!ret)
-                        return 0;
+        goto out;
+    }
+
+    local->rebalance.target_op_fn = dht_zerofill2;
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
+
+    dht_set_local_rebalance(this, local, NULL, prebuf, postbuf, xdata);
+
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(postbuf)) {
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
+
+    /* Check if the rebalance phase1 is true */
+    if (IS_DHT_MIGRATION_PHASE1(postbuf)) {
+        dht_iatt_merge(this, &local->stbuf, postbuf);
+        dht_iatt_merge(this, &local->prebuf, prebuf);
+
+        ret = dht_inode_ctx_get_mig_info(this, local->fd->inode, &subvol1,
+                                         &subvol2);
+        if (!dht_mig_info_is_invalid(local->cached_subvol, subvol1, subvol2)) {
+            if (dht_fd_open_on_dst(this, local->fd, subvol2)) {
+                dht_zerofill2(this, subvol2, frame, 0);
+                return 0;
+            }
         }
 
+        ret = dht_rebalance_in_progress_check(this, frame);
+        if (!ret)
+            return 0;
+    }
+
 out:
-        DHT_STRIP_PHASE1_FLAGS (postbuf);
-        DHT_STRIP_PHASE1_FLAGS (prebuf);
+    DHT_STRIP_PHASE1_FLAGS(postbuf);
+    DHT_STRIP_PHASE1_FLAGS(prebuf);
 
-        DHT_STACK_UNWIND (zerofill, frame, op_ret, op_errno,
-                          prebuf, postbuf, xdata);
+    DHT_STACK_UNWIND(zerofill, frame, op_ret, op_errno, prebuf, postbuf, xdata);
 err:
-        return 0;
+    return 0;
 }
 
 int
-dht_zerofill2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_zerofill2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if (!frame || !frame->local)
-                goto out;
+    if (!frame || !frame->local)
+        goto out;
 
-        local = frame->local;
+    local = frame->local;
 
-        op_errno = local->op_errno;
+    op_errno = local->op_errno;
 
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (zerofill, frame, local->op_ret,
-                                  local->op_errno,
-                                  &local->rebalance.prebuf,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(zerofill, frame, local->op_ret, local->op_errno,
+                         &local->rebalance.prebuf, &local->rebalance.postbuf,
+                         local->rebalance.xdata);
 
-                return 0;
-        }
+        return 0;
+    }
 
-        if (subvol == NULL)
-                goto out;
+    if (subvol == NULL)
+        goto out;
 
-        local->call_cnt = 2; /* This is the second attempt */
+    local->call_cnt = 2; /* This is the second attempt */
 
-        STACK_WIND_COOKIE (frame, dht_zerofill_cbk, subvol, subvol,
-                           subvol->fops->zerofill,
-                           local->fd, local->rebalance.offset,
-                           local->rebalance.size, local->xattr_req);
+    STACK_WIND_COOKIE(frame, dht_zerofill_cbk, subvol, subvol,
+                      subvol->fops->zerofill, local->fd,
+                      local->rebalance.offset, local->rebalance.size,
+                      local->xattr_req);
 
-        return 0;
+    return 0;
 
 out:
 
-        DHT_STACK_UNWIND (zerofill, frame, -1, op_errno, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(zerofill, frame, -1, op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-dht_zerofill (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
-            off_t len, dict_t *xdata)
+dht_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+             off_t len, dict_t *xdata)
 {
-        xlator_t     *subvol       = NULL;
-        int           op_errno     = -1;
-        dht_local_t  *local        = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_ZEROFILL);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
 
-        local->rebalance.offset = offset;
-        local->rebalance.size = len;
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
 
-        local->call_cnt = 1;
-        subvol = local->cached_subvol;
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
+    local = dht_local_init(frame, NULL, fd, GF_FOP_ZEROFILL);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
 
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
+    local->rebalance.offset = offset;
+    local->rebalance.size = len;
 
-        STACK_WIND_COOKIE (frame, dht_zerofill_cbk, subvol, subvol,
-                           subvol->fops->zerofill, fd,
-                           local->rebalance.offset,
-                           local->rebalance.size, local->xattr_req);
+    local->call_cnt = 1;
+    subvol = local->cached_subvol;
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        return 0;
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
 
-err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (zerofill, frame, -1, op_errno, NULL, NULL, NULL);
+    STACK_WIND_COOKIE(frame, dht_zerofill_cbk, subvol, subvol,
+                      subvol->fops->zerofill, fd, local->rebalance.offset,
+                      local->rebalance.size, local->xattr_req);
 
-        return 0;
-}
+    return 0;
 
+err:
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(zerofill, frame, -1, op_errno, NULL, NULL, NULL);
 
+    return 0;
+}
 
 /* handle cases of migration here for 'setattr()' calls */
 int
-dht_file_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                      int op_ret, int op_errno, struct iatt *prebuf,
-                      struct iatt *postbuf, dict_t *xdata)
+dht_file_setattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                     int op_ret, int op_errno, struct iatt *prebuf,
+                     struct iatt *postbuf, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        int           ret = -1;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int ret = -1;
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
 
-        local->op_errno = op_errno;
-
-        if ((local->fop == GF_FOP_FSETATTR) &&
-            (op_ret == -1) && (op_errno == EBADF) && !(local->fd_checked)) {
-                ret = dht_check_and_open_fd_on_subvol (this, frame);
-                if (ret)
-                        goto out;
-                return 0;
-        }
-
-        if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-                goto out;
-        }
+    local->op_errno = op_errno;
 
-        if (local->call_cnt != 1)
-                goto out;
+    if ((local->fop == GF_FOP_FSETATTR) && (op_ret == -1) &&
+        (op_errno == EBADF) && !(local->fd_checked)) {
+        ret = dht_check_and_open_fd_on_subvol(this, frame);
+        if (ret)
+            goto out;
+        return 0;
+    }
 
-        local->op_ret = op_ret;
-        local->op_errno = op_errno;
+    if ((op_ret == -1) && !dht_inode_missing(op_errno)) {
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
+        goto out;
+    }
 
-        local->rebalance.target_op_fn = dht_setattr2;
+    if (local->call_cnt != 1)
+        goto out;
 
+    local->op_ret = op_ret;
+    local->op_errno = op_errno;
 
-        /* Phase 2 of migration */
-        if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2 (postbuf)) {
+    local->rebalance.target_op_fn = dht_setattr2;
 
-                dht_set_local_rebalance (this, local, NULL, prebuf,
-                                         postbuf, xdata);
+    /* Phase 2 of migration */
+    if ((op_ret == -1) || IS_DHT_MIGRATION_PHASE2(postbuf)) {
+        dht_set_local_rebalance(this, local, NULL, prebuf, postbuf, xdata);
 
-                ret = dht_rebalance_complete_check (this, frame);
-                if (!ret)
-                        return 0;
-        }
+        ret = dht_rebalance_complete_check(this, frame);
+        if (!ret)
+            return 0;
+    }
 
-        /* At the end of the migration process, whatever 'attr' we
-           have on source file will be migrated to destination file
-           in one shot, hence we don't need to check for in progress
-           state here (ie, PHASE1) */
+    /* At the end of the migration process, whatever 'attr' we
+       have on source file will be migrated to destination file
+       in one shot, hence we don't need to check for in progress
+       state here (ie, PHASE1) */
 out:
-        DHT_STRIP_PHASE1_FLAGS (postbuf);
-        DHT_STRIP_PHASE1_FLAGS (prebuf);
+    DHT_STRIP_PHASE1_FLAGS(postbuf);
+    DHT_STRIP_PHASE1_FLAGS(prebuf);
 
-        DHT_STACK_UNWIND (setattr, frame, op_ret, op_errno,
-                          prebuf, postbuf, xdata);
+    DHT_STACK_UNWIND(setattr, frame, op_ret, op_errno, prebuf, postbuf, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_setattr2 (xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
+dht_setattr2(xlator_t *this, xlator_t *subvol, call_frame_t *frame, int ret)
 {
-        dht_local_t *local    = NULL;
-        int32_t      op_errno = EINVAL;
+    dht_local_t *local = NULL;
+    int32_t op_errno = EINVAL;
 
-        if (!frame || !frame->local)
-                goto out;
+    if (!frame || !frame->local)
+        goto out;
 
-        local = frame->local;
-        op_errno = local->op_errno;
-
-        if (we_are_not_migrating (ret)) {
-                /* This dht xlator is not migrating the file. Unwind and
-                 * pass on the original mode bits so the higher DHT layer
-                 * can handle this.
-                 */
-                DHT_STACK_UNWIND (setattr, frame, local->op_ret,
-                                  local->op_errno,
-                                  &local->rebalance.prebuf,
-                                  &local->rebalance.postbuf,
-                                  local->rebalance.xdata);
-                return 0;
-        }
+    local = frame->local;
+    op_errno = local->op_errno;
 
-        if (subvol == NULL)
-                goto out;
+    if (we_are_not_migrating(ret)) {
+        /* This dht xlator is not migrating the file. Unwind and
+         * pass on the original mode bits so the higher DHT layer
+         * can handle this.
+         */
+        DHT_STACK_UNWIND(setattr, frame, local->op_ret, local->op_errno,
+                         &local->rebalance.prebuf, &local->rebalance.postbuf,
+                         local->rebalance.xdata);
+        return 0;
+    }
 
-        local->call_cnt = 2; /* This is the second attempt */
-
-        if (local->fop == GF_FOP_SETATTR) {
-                STACK_WIND_COOKIE (frame, dht_file_setattr_cbk, subvol,
-                                   subvol, subvol->fops->setattr, &local->loc,
-                                   &local->rebalance.stbuf, local->rebalance.flags,
-                                   local->xattr_req);
-        } else {
-                STACK_WIND_COOKIE (frame, dht_file_setattr_cbk, subvol,
-                                   subvol, subvol->fops->fsetattr, local->fd,
-                                   &local->rebalance.stbuf, local->rebalance.flags,
-                                   local->xattr_req);
-        }
+    if (subvol == NULL)
+        goto out;
 
-        return 0;
+    local->call_cnt = 2; /* This is the second attempt */
+
+    if (local->fop == GF_FOP_SETATTR) {
+        STACK_WIND_COOKIE(frame, dht_file_setattr_cbk, subvol, subvol,
+                          subvol->fops->setattr, &local->loc,
+                          &local->rebalance.stbuf, local->rebalance.flags,
+                          local->xattr_req);
+    } else {
+        STACK_WIND_COOKIE(frame, dht_file_setattr_cbk, subvol, subvol,
+                          subvol->fops->fsetattr, local->fd,
+                          &local->rebalance.stbuf, local->rebalance.flags,
+                          local->xattr_req);
+    }
+
+    return 0;
 
 out:
-        DHT_STACK_UNWIND (setattr, frame, -1, op_errno, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(setattr, frame, -1, op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
-
 /* Keep the existing code same for all the cases other than regular file */
 int
-dht_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                 int op_ret, int op_errno, struct iatt *statpre,
-                 struct iatt *statpost, dict_t *xdata)
+dht_setattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, struct iatt *statpre, struct iatt *statpost,
+                dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
-
-
-        local = frame->local;
-        prev = cookie;
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        gf_msg_debug (this->name, op_errno,
-                                      "subvolume %s returned -1",
-                                      prev->name);
-                        goto unlock;
-                }
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
 
-                dht_iatt_merge (this, &local->prebuf, statpre);
-                dht_iatt_merge (this, &local->stbuf, statpost);
+    local = frame->local;
+    prev = cookie;
 
-                local->op_ret = 0;
-                local->op_errno = 0;
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                         prev->name);
+            goto unlock;
         }
+
+        dht_iatt_merge(this, &local->prebuf, statpre);
+        dht_iatt_merge(this, &local->stbuf, statpost);
+
+        local->op_ret = 0;
+        local->op_errno = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-		if (local->op_ret == 0)
-			dht_inode_ctx_time_set (local->loc.inode, this,
-						&local->stbuf);
-                DHT_STACK_UNWIND (setattr, frame, local->op_ret, local->op_errno,
-                                  &local->prebuf, &local->stbuf, xdata);
-	}
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        if (local->op_ret == 0)
+            dht_inode_ctx_time_set(local->loc.inode, this, &local->stbuf);
+        DHT_STACK_UNWIND(setattr, frame, local->op_ret, local->op_errno,
+                         &local->prebuf, &local->stbuf, xdata);
+    }
 
-        return 0;
+    return 0;
 }
 
-
 /* Keep the existing code same for all the cases other than regular file */
 int
-dht_non_mds_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int op_ret, int op_errno, struct iatt *statpre,
-                         struct iatt *statpost, dict_t *xdata)
+dht_non_mds_setattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, struct iatt *statpre,
+                        struct iatt *statpost, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
-        xlator_t     *prev = NULL;
-
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
 
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        gf_msg (this->name, op_errno, 0,
-                                0, "subvolume %s returned -1",
-                                prev->name);
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            gf_msg(this->name, op_errno, 0, 0, "subvolume %s returned -1",
+                   prev->name);
 
-                        goto unlock;
-                }
+            goto unlock;
+        }
 
-                dht_iatt_merge (this, &local->prebuf, statpre);
-                dht_iatt_merge (this, &local->stbuf, statpost);
+        dht_iatt_merge(this, &local->prebuf, statpre);
+        dht_iatt_merge(this, &local->stbuf, statpost);
 
-                local->op_ret = 0;
-                local->op_errno = 0;
-        }
+        local->op_ret = 0;
+        local->op_errno = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                dht_inode_ctx_time_set (local->loc.inode, this, &local->stbuf);
-                DHT_STACK_UNWIND (setattr, frame, 0, 0,
-                                  &local->prebuf, &local->stbuf, xdata);
-	}
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        dht_inode_ctx_time_set(local->loc.inode, this, &local->stbuf);
+        DHT_STACK_UNWIND(setattr, frame, 0, 0, &local->prebuf, &local->stbuf,
+                         xdata);
+    }
 
-        return 0;
+    return 0;
 }
 
-
-
-
-
 int
-dht_mds_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int op_ret, int op_errno, struct iatt *statpre,
-                     struct iatt *statpost, dict_t *xdata)
+dht_mds_setattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int op_ret, int op_errno, struct iatt *statpre,
+                    struct iatt *statpost, dict_t *xdata)
 
 {
-        dht_local_t  *local = NULL;
-        dht_conf_t   *conf  = NULL;
-        xlator_t     *prev = NULL;
-        xlator_t     *mds_subvol = NULL;
-        struct iatt  loc_stbuf = {0,};
-        int i = 0;
-
-        local = frame->local;
-        prev = cookie;
-        conf = this->private;
-        mds_subvol = local->mds_subvol;
-
-        if (op_ret == -1) {
-                local->op_ret  = op_ret;
-                local->op_errno = op_errno;
-                gf_msg_debug (this->name, op_errno,
-                              "subvolume %s returned -1",
-                              prev->name);
-                goto out;
-        }
-
-        local->op_ret = 0;
-        loc_stbuf = local->stbuf;
-        dht_iatt_merge (this, &local->prebuf, statpre);
-        dht_iatt_merge (this, &local->stbuf, statpost);
-
-        local->call_cnt = conf->subvolume_cnt - 1;
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (mds_subvol == conf->subvolumes[i])
-                        continue;
-                STACK_WIND_COOKIE (frame, dht_non_mds_setattr_cbk,
-                                   conf->subvolumes[i], conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->setattr,
-                                   &local->loc, &loc_stbuf,
-                                   local->valid, local->xattr_req);
-        }
-
-        return 0;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *mds_subvol = NULL;
+    struct iatt loc_stbuf = {
+        0,
+    };
+    int i = 0;
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+    mds_subvol = local->mds_subvol;
+
+    if (op_ret == -1) {
+        local->op_ret = op_ret;
+        local->op_errno = op_errno;
+        gf_msg_debug(this->name, op_errno, "subvolume %s returned -1",
+                     prev->name);
+        goto out;
+    }
+
+    local->op_ret = 0;
+    loc_stbuf = local->stbuf;
+    dht_iatt_merge(this, &local->prebuf, statpre);
+    dht_iatt_merge(this, &local->stbuf, statpost);
+
+    local->call_cnt = conf->subvolume_cnt - 1;
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (mds_subvol == conf->subvolumes[i])
+            continue;
+        STACK_WIND_COOKIE(frame, dht_non_mds_setattr_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->setattr, &local->loc,
+                          &loc_stbuf, local->valid, local->xattr_req);
+    }
+
+    return 0;
 out:
-        DHT_STACK_UNWIND (setattr, frame, local->op_ret, local->op_errno,
-                          &local->prebuf, &local->stbuf, xdata);
+    DHT_STACK_UNWIND(setattr, frame, local->op_ret, local->op_errno,
+                     &local->prebuf, &local->stbuf, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
-             struct iatt *stbuf, int32_t valid, dict_t *xdata)
+dht_setattr(call_frame_t *frame, xlator_t *this, loc_t *loc, struct iatt *stbuf,
+            int32_t valid, dict_t *xdata)
 {
-        xlator_t     *subvol     = NULL;
-        xlator_t     *mds_subvol = NULL;
-        dht_layout_t *layout     = NULL;
-        dht_local_t  *local      = NULL;
-        int           op_errno   = -1;
-        int           i          = -1;
-        int           ret        = -1;
-        int           call_cnt   = 0;
-        dht_conf_t   *conf       = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-
-        conf = this->private;
-        local = dht_local_init (frame, loc, NULL, GF_FOP_SETATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        layout = local->layout;
-        if (!layout) {
-                gf_msg_debug (this->name, 0,
-                              "no layout for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        if (!layout_is_sane (layout)) {
-                gf_msg_debug (this->name, 0,
-                              "layout is not sane for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        if (IA_ISREG (loc->inode->ia_type)) {
-                /* in the regular file _cbk(), we need to check for
-                   migration possibilities */
-                local->rebalance.stbuf = *stbuf;
-                local->rebalance.flags = valid;
-                local->call_cnt = 1;
-                subvol = local->cached_subvol;
+    xlator_t *subvol = NULL;
+    xlator_t *mds_subvol = NULL;
+    dht_layout_t *layout = NULL;
+    dht_local_t *local = NULL;
+    int op_errno = -1;
+    int i = -1;
+    int ret = -1;
+    int call_cnt = 0;
+    dht_conf_t *conf = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+
+    conf = this->private;
+    local = dht_local_init(frame, loc, NULL, GF_FOP_SETATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg_debug(this->name, 0, "no layout for path=%s", loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (!layout_is_sane(layout)) {
+        gf_msg_debug(this->name, 0, "layout is not sane for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    if (IA_ISREG(loc->inode->ia_type)) {
+        /* in the regular file _cbk(), we need to check for
+           migration possibilities */
+        local->rebalance.stbuf = *stbuf;
+        local->rebalance.flags = valid;
+        local->call_cnt = 1;
+        subvol = local->cached_subvol;
 
-                STACK_WIND_COOKIE (frame, dht_file_setattr_cbk, subvol,
-                                   subvol, subvol->fops->setattr, loc, stbuf,
-                                   valid, xdata);
+        STACK_WIND_COOKIE(frame, dht_file_setattr_cbk, subvol, subvol,
+                          subvol->fops->setattr, loc, stbuf, valid, xdata);
 
-                return 0;
+        return 0;
+    }
+
+    local->call_cnt = call_cnt = layout->cnt;
+
+    if (IA_ISDIR(loc->inode->ia_type) && !__is_root_gfid(loc->inode->gfid) &&
+        call_cnt != 1) {
+        ret = dht_inode_ctx_mdsvol_get(loc->inode, this, &mds_subvol);
+        if (ret || !mds_subvol) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+                   "Failed to get mds subvol for path %s", local->loc.path);
+            op_errno = EINVAL;
+            goto err;
         }
 
-        local->call_cnt = call_cnt = layout->cnt;
-
-        if (IA_ISDIR (loc->inode->ia_type) &&
-            !__is_root_gfid (loc->inode->gfid) && call_cnt != 1) {
-                ret = dht_inode_ctx_mdsvol_get (loc->inode, this, &mds_subvol);
-                if (ret || !mds_subvol) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                                "Failed to get mds subvol for path %s",
-                                local->loc.path);
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                local->mds_subvol = mds_subvol;
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (conf->subvolumes[i] ==  mds_subvol) {
-                                if (!conf->subvolume_status[i]) {
-                                        gf_msg (this->name, GF_LOG_WARNING,
-                                                layout->list[i].err,
-                                                DHT_MSG_HASHED_SUBVOL_DOWN,
-                                                "MDS subvol is down for path "
-                                                " %s Unable to set attr " ,
-                                                local->loc.path);
-                                        op_errno = ENOTCONN;
-                                        goto err;
-                                }
-                        }
-                }
-                local->valid = valid;
-                local->stbuf = *stbuf;
-
-                STACK_WIND_COOKIE (frame, dht_mds_setattr_cbk,
-                                   local->mds_subvol,
-                                   local->mds_subvol,
-                                   local->mds_subvol->fops->setattr,
-                                   loc, stbuf, valid, xdata);
-                return 0;
-        } else {
-                for (i = 0; i < call_cnt; i++) {
-                        STACK_WIND_COOKIE (frame, dht_setattr_cbk,
-                                           layout->list[i].xlator,
-                                           layout->list[i].xlator,
-                                           layout->list[i].xlator->fops->setattr,
-                                           loc, stbuf, valid, xdata);
+        local->mds_subvol = mds_subvol;
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->subvolumes[i] == mds_subvol) {
+                if (!conf->subvolume_status[i]) {
+                    gf_msg(this->name, GF_LOG_WARNING, layout->list[i].err,
+                           DHT_MSG_HASHED_SUBVOL_DOWN,
+                           "MDS subvol is down for path "
+                           " %s Unable to set attr ",
+                           local->loc.path);
+                    op_errno = ENOTCONN;
+                    goto err;
                 }
+            }
         }
+        local->valid = valid;
+        local->stbuf = *stbuf;
 
+        STACK_WIND_COOKIE(frame, dht_mds_setattr_cbk, local->mds_subvol,
+                          local->mds_subvol, local->mds_subvol->fops->setattr,
+                          loc, stbuf, valid, xdata);
         return 0;
+    } else {
+        for (i = 0; i < call_cnt; i++) {
+            STACK_WIND_COOKIE(frame, dht_setattr_cbk, layout->list[i].xlator,
+                              layout->list[i].xlator,
+                              layout->list[i].xlator->fops->setattr, loc, stbuf,
+                              valid, xdata);
+        }
+    }
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (setattr, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(setattr, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iatt *stbuf,
-              int32_t valid, dict_t *xdata)
+dht_fsetattr(call_frame_t *frame, xlator_t *this, fd_t *fd, struct iatt *stbuf,
+             int32_t valid, dict_t *xdata)
 {
-        xlator_t     *subvol = NULL;
-        dht_layout_t *layout = NULL;
-        dht_local_t  *local  = NULL;
-        int           op_errno = -1;
-        int           i = -1;
-        int           call_cnt = 0;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-
-        local = dht_local_init (frame, NULL, fd, GF_FOP_FSETATTR);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        layout = local->layout;
-        if (!layout) {
-                gf_msg_debug (this->name, 0,
-                              "no layout for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
+    xlator_t *subvol = NULL;
+    dht_layout_t *layout = NULL;
+    dht_local_t *local = NULL;
+    int op_errno = -1;
+    int i = -1;
+    int call_cnt = 0;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+
+    local = dht_local_init(frame, NULL, fd, GF_FOP_FSETATTR);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    layout = local->layout;
+    if (!layout) {
+        gf_msg_debug(this->name, 0, "no layout for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (!layout_is_sane(layout)) {
+        gf_msg_debug(this->name, 0, "layout is not sane for fd=%p", fd);
+        op_errno = EINVAL;
+        goto err;
+    }
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    if (IA_ISREG(fd->inode->ia_type)) {
+        /* in the regular file _cbk(), we need to check for
+           migration possibilities */
+        local->rebalance.stbuf = *stbuf;
+        local->rebalance.flags = valid;
+        local->call_cnt = 1;
+        subvol = local->cached_subvol;
 
-        if (!layout_is_sane (layout)) {
-                gf_msg_debug (this->name, 0,
-                              "layout is not sane for fd=%p", fd);
-                op_errno = EINVAL;
-                goto err;
-        }
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        if (IA_ISREG (fd->inode->ia_type)) {
-                /* in the regular file _cbk(), we need to check for
-                   migration possibilities */
-                local->rebalance.stbuf = *stbuf;
-                local->rebalance.flags = valid;
-                local->call_cnt = 1;
-                subvol = local->cached_subvol;
-
-                STACK_WIND_COOKIE (frame, dht_file_setattr_cbk, subvol,
-                                   subvol, subvol->fops->fsetattr, fd,
-                                   &local->rebalance.stbuf,
-                                   local->rebalance.flags,
-                                   local->xattr_req);
-                return 0;
-        }
+        STACK_WIND_COOKIE(frame, dht_file_setattr_cbk, subvol, subvol,
+                          subvol->fops->fsetattr, fd, &local->rebalance.stbuf,
+                          local->rebalance.flags, local->xattr_req);
+        return 0;
+    }
 
-        local->call_cnt = call_cnt = layout->cnt;
+    local->call_cnt = call_cnt = layout->cnt;
 
-        for (i = 0; i < call_cnt; i++) {
-                STACK_WIND_COOKIE (frame, dht_setattr_cbk,
-                                   layout->list[i].xlator,
-                                   layout->list[i].xlator,
-                                   layout->list[i].xlator->fops->fsetattr,
-                                   fd, stbuf, valid, xdata);
-        }
+    for (i = 0; i < call_cnt; i++) {
+        STACK_WIND_COOKIE(frame, dht_setattr_cbk, layout->list[i].xlator,
+                          layout->list[i].xlator,
+                          layout->list[i].xlator->fops->fsetattr, fd, stbuf,
+                          valid, xdata);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (fsetattr, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(fsetattr, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
diff --git a/xlators/cluster/dht/src/dht-layout.c b/xlators/cluster/dht/src/dht-layout.c
index 97b98e01451..43746bc63b9 100644
--- a/xlators/cluster/dht/src/dht-layout.c
+++ b/xlators/cluster/dht/src/dht-layout.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "glusterfs.h"
 #include "xlator.h"
 #include "dht-common.h"
@@ -16,862 +15,814 @@
 #include "dht-messages.h"
 #include "unittest/unittest.h"
 
+#define layout_base_size (sizeof(dht_layout_t))
 
-#define layout_base_size (sizeof (dht_layout_t))
-
-#define layout_entry_size (sizeof ((dht_layout_t *)NULL)->list[0])
+#define layout_entry_size (sizeof((dht_layout_t *)NULL)->list[0])
 
 #define layout_size(cnt) (layout_base_size + (cnt * layout_entry_size))
 
 dht_layout_t *
-dht_layout_new (xlator_t *this, int cnt)
+dht_layout_new(xlator_t *this, int cnt)
 {
-        dht_layout_t *layout = NULL;
-        dht_conf_t   *conf = NULL;
+    dht_layout_t *layout = NULL;
+    dht_conf_t *conf = NULL;
 
-        REQUIRE(NULL != this);
-        REQUIRE(cnt >= 0);
+    REQUIRE(NULL != this);
+    REQUIRE(cnt >= 0);
 
-        conf = this->private;
+    conf = this->private;
 
-        layout = GF_CALLOC (1, layout_size (cnt),
-                            gf_dht_mt_dht_layout_t);
-        if (!layout) {
-                goto out;
-        }
+    layout = GF_CALLOC(1, layout_size(cnt), gf_dht_mt_dht_layout_t);
+    if (!layout) {
+        goto out;
+    }
 
-        layout->type = DHT_HASH_TYPE_DM;
-        layout->cnt = cnt;
+    layout->type = DHT_HASH_TYPE_DM;
+    layout->cnt = cnt;
 
-        if (conf) {
-                layout->spread_cnt = conf->dir_spread_cnt;
-                layout->gen = conf->gen;
-        }
+    if (conf) {
+        layout->spread_cnt = conf->dir_spread_cnt;
+        layout->gen = conf->gen;
+    }
 
-        GF_ATOMIC_INIT (layout->ref, 1);
+    GF_ATOMIC_INIT(layout->ref, 1);
 
-        ENSURE(NULL != layout);
-        ENSURE(layout->type == DHT_HASH_TYPE_DM);
-        ENSURE(layout->cnt == cnt);
-        ENSURE(GF_ATOMIC_GET (layout->ref) == 1);
+    ENSURE(NULL != layout);
+    ENSURE(layout->type == DHT_HASH_TYPE_DM);
+    ENSURE(layout->cnt == cnt);
+    ENSURE(GF_ATOMIC_GET(layout->ref) == 1);
 out:
-        return layout;
+    return layout;
 }
 
-
 dht_layout_t *
-dht_layout_get (xlator_t *this, inode_t *inode)
+dht_layout_get(xlator_t *this, inode_t *inode)
 {
-        dht_layout_t *layout = NULL;
-        int           ret = 0;
-
-        ret = dht_inode_ctx_layout_get (inode, this, &layout);
-        if ((!ret) && layout) {
-                GF_ATOMIC_INC (layout->ref);
-        }
-        return layout;
+    dht_layout_t *layout = NULL;
+    int ret = 0;
+
+    ret = dht_inode_ctx_layout_get(inode, this, &layout);
+    if ((!ret) && layout) {
+        GF_ATOMIC_INC(layout->ref);
+    }
+    return layout;
 }
 
-
 int
-dht_layout_set (xlator_t *this, inode_t *inode, dht_layout_t *layout)
+dht_layout_set(xlator_t *this, inode_t *inode, dht_layout_t *layout)
 {
-        dht_conf_t   *conf = NULL;
-        int           oldret = -1;
-        int           ret = -1;
-        dht_layout_t *old_layout;
-
-        conf = this->private;
-        if (!conf || !layout)
-                goto out;
-
-        LOCK (&conf->layout_lock);
-        {
-                oldret = dht_inode_ctx_layout_get (inode, this, &old_layout);
-                if (layout)
-                        GF_ATOMIC_INC (layout->ref);
-                ret = dht_inode_ctx_layout_set (inode, this, layout);
-        }
-        UNLOCK (&conf->layout_lock);
-
-        if (!oldret) {
-                dht_layout_unref (this, old_layout);
-        }
-        if (ret)
-                GF_ATOMIC_DEC (layout->ref);
+    dht_conf_t *conf = NULL;
+    int oldret = -1;
+    int ret = -1;
+    dht_layout_t *old_layout;
+
+    conf = this->private;
+    if (!conf || !layout)
+        goto out;
+
+    LOCK(&conf->layout_lock);
+    {
+        oldret = dht_inode_ctx_layout_get(inode, this, &old_layout);
+        if (layout)
+            GF_ATOMIC_INC(layout->ref);
+        ret = dht_inode_ctx_layout_set(inode, this, layout);
+    }
+    UNLOCK(&conf->layout_lock);
+
+    if (!oldret) {
+        dht_layout_unref(this, old_layout);
+    }
+    if (ret)
+        GF_ATOMIC_DEC(layout->ref);
 
 out:
-        return ret;
+    return ret;
 }
 
-
 void
-dht_layout_unref (xlator_t *this, dht_layout_t *layout)
+dht_layout_unref(xlator_t *this, dht_layout_t *layout)
 {
-        int          ref = 0;
+    int ref = 0;
 
-        if (!layout || layout->preset || !this->private)
-                return;
+    if (!layout || layout->preset || !this->private)
+        return;
 
-        ref = GF_ATOMIC_DEC (layout->ref);
+    ref = GF_ATOMIC_DEC(layout->ref);
 
-        if (!ref)
-                GF_FREE (layout);
+    if (!ref)
+        GF_FREE(layout);
 }
 
-
 dht_layout_t *
-dht_layout_ref (xlator_t *this, dht_layout_t *layout)
+dht_layout_ref(xlator_t *this, dht_layout_t *layout)
 {
-        if (layout->preset || !this->private)
-                return layout;
+    if (layout->preset || !this->private)
+        return layout;
 
-        GF_ATOMIC_INC (layout->ref);
+    GF_ATOMIC_INC(layout->ref);
 
-        return layout;
+    return layout;
 }
 
-
 xlator_t *
-dht_layout_search (xlator_t *this, dht_layout_t *layout, const char *name)
+dht_layout_search(xlator_t *this, dht_layout_t *layout, const char *name)
 {
-        uint32_t   hash = 0;
-        xlator_t  *subvol = NULL;
-        int        i = 0;
-        int        ret = 0;
-
-        ret = dht_hash_compute (this, layout->type, name, &hash);
-        if (ret != 0) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_COMPUTE_HASH_FAILED,
-                        "hash computation failed for type=%d name=%s",
-                        layout->type, name);
-                goto out;
-        }
-
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].start <= hash
-                    && layout->list[i].stop >= hash) {
-                        subvol = layout->list[i].xlator;
-                        break;
-                }
-        }
-
-        if (!subvol) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                        "no subvolume for hash (value) = %u", hash);
-        }
+    uint32_t hash = 0;
+    xlator_t *subvol = NULL;
+    int i = 0;
+    int ret = 0;
+
+    ret = dht_hash_compute(this, layout->type, name, &hash);
+    if (ret != 0) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_COMPUTE_HASH_FAILED,
+               "hash computation failed for type=%d name=%s", layout->type,
+               name);
+        goto out;
+    }
+
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].start <= hash && layout->list[i].stop >= hash) {
+            subvol = layout->list[i].xlator;
+            break;
+        }
+    }
+
+    if (!subvol) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+               "no subvolume for hash (value) = %u", hash);
+    }
 
 out:
-        return subvol;
+    return subvol;
 }
 
-
 dht_layout_t *
-dht_layout_for_subvol (xlator_t *this, xlator_t *subvol)
+dht_layout_for_subvol(xlator_t *this, xlator_t *subvol)
 {
-        dht_conf_t   *conf = NULL;
-        dht_layout_t *layout = NULL;
-        int           i = 0;
-
-        conf = this->private;
-        if (!conf)
-                goto out;
-
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->subvolumes[i] == subvol) {
-                        layout = conf->file_layouts[i];
-                        break;
-                }
+    dht_conf_t *conf = NULL;
+    dht_layout_t *layout = NULL;
+    int i = 0;
+
+    conf = this->private;
+    if (!conf)
+        goto out;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->subvolumes[i] == subvol) {
+            layout = conf->file_layouts[i];
+            break;
         }
+    }
 
 out:
-        return layout;
+    return layout;
 }
 
-
 int
-dht_layouts_init (xlator_t *this, dht_conf_t *conf)
+dht_layouts_init(xlator_t *this, dht_conf_t *conf)
 {
-        dht_layout_t *layout = NULL;
-        int           i = 0;
-        int           ret = -1;
-
-        if (!conf)
-                goto out;
-
-        conf->file_layouts = GF_CALLOC (conf->subvolume_cnt,
-                                        sizeof (dht_layout_t *),
-                                        gf_dht_mt_dht_layout_t);
-        if (!conf->file_layouts) {
-                goto out;
-        }
+    dht_layout_t *layout = NULL;
+    int i = 0;
+    int ret = -1;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                layout = dht_layout_new (this, 1);
+    if (!conf)
+        goto out;
 
-                if (!layout) {
-                        goto out;
-                }
-
-                layout->preset = 1;
+    conf->file_layouts = GF_CALLOC(conf->subvolume_cnt, sizeof(dht_layout_t *),
+                                   gf_dht_mt_dht_layout_t);
+    if (!conf->file_layouts) {
+        goto out;
+    }
 
-                layout->list[0].xlator = conf->subvolumes[i];
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        layout = dht_layout_new(this, 1);
 
-                conf->file_layouts[i] = layout;
+        if (!layout) {
+            goto out;
         }
 
-        ret = 0;
+        layout->preset = 1;
+
+        layout->list[0].xlator = conf->subvolumes[i];
+
+        conf->file_layouts[i] = layout;
+    }
+
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
-
 int
-dht_disk_layout_extract (xlator_t *this, dht_layout_t *layout,
-                         int pos, int32_t **disk_layout_p)
+dht_disk_layout_extract(xlator_t *this, dht_layout_t *layout, int pos,
+                        int32_t **disk_layout_p)
 {
-        int      ret = -1;
-        int32_t *disk_layout = NULL;
+    int ret = -1;
+    int32_t *disk_layout = NULL;
 
-        disk_layout = GF_CALLOC (5, sizeof (int),
-                                 gf_dht_mt_int32_t);
-        if (!disk_layout) {
-                goto out;
-        }
+    disk_layout = GF_CALLOC(5, sizeof(int), gf_dht_mt_int32_t);
+    if (!disk_layout) {
+        goto out;
+    }
 
-        disk_layout[0] = hton32 (layout->list[pos].commit_hash);
-        disk_layout[1] = hton32 (layout->type);
-        disk_layout[2] = hton32 (layout->list[pos].start);
-        disk_layout[3] = hton32 (layout->list[pos].stop);
+    disk_layout[0] = hton32(layout->list[pos].commit_hash);
+    disk_layout[1] = hton32(layout->type);
+    disk_layout[2] = hton32(layout->list[pos].start);
+    disk_layout[3] = hton32(layout->list[pos].stop);
 
-        if (disk_layout_p)
-                *disk_layout_p = disk_layout;
-        else
-                GF_FREE (disk_layout);
+    if (disk_layout_p)
+        *disk_layout_p = disk_layout;
+    else
+        GF_FREE(disk_layout);
 
-        ret = 0;
+    ret = 0;
 
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_disk_layout_extract_for_subvol (xlator_t *this, dht_layout_t *layout,
-                                    xlator_t *subvol, int32_t **disk_layout_p)
+dht_disk_layout_extract_for_subvol(xlator_t *this, dht_layout_t *layout,
+                                   xlator_t *subvol, int32_t **disk_layout_p)
 {
-        int i = 0;
+    int i = 0;
 
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].xlator == subvol)
-                        break;
-        }
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].xlator == subvol)
+            break;
+    }
 
-        if (i == layout->cnt)
-                return -1;
+    if (i == layout->cnt)
+        return -1;
 
-        return dht_disk_layout_extract (this, layout, i, disk_layout_p);
+    return dht_disk_layout_extract(this, layout, i, disk_layout_p);
 }
 
 int
-dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout,
-		       int pos, void *disk_layout_raw, int disk_layout_len)
+dht_disk_layout_merge(xlator_t *this, dht_layout_t *layout, int pos,
+                      void *disk_layout_raw, int disk_layout_len)
 {
-        int      type = 0;
-        int      start_off = 0;
-        int      stop_off = 0;
-        int      commit_hash = 0;
-        int      disk_layout[4];
+    int type = 0;
+    int start_off = 0;
+    int stop_off = 0;
+    int commit_hash = 0;
+    int disk_layout[4];
 
-	if (!disk_layout_raw) {
-		gf_msg (this->name, GF_LOG_CRITICAL, 0,
-                        DHT_MSG_LAYOUT_MERGE_FAILED,
-                        "error no layout on disk for merge");
-		return -1;
-	}
+    if (!disk_layout_raw) {
+        gf_msg(this->name, GF_LOG_CRITICAL, 0, DHT_MSG_LAYOUT_MERGE_FAILED,
+               "error no layout on disk for merge");
+        return -1;
+    }
 
-	GF_ASSERT (disk_layout_len == sizeof (disk_layout));
+    GF_ASSERT(disk_layout_len == sizeof(disk_layout));
 
-        memcpy (disk_layout, disk_layout_raw, disk_layout_len);
+    memcpy(disk_layout, disk_layout_raw, disk_layout_len);
 
-        type = ntoh32 (disk_layout[1]);
-	switch (type) {
+    type = ntoh32(disk_layout[1]);
+    switch (type) {
         case DHT_HASH_TYPE_DM_USER:
-                gf_msg_debug (this->name, 0, "found user-set layout");
-                layout->type = type;
-                /* Fall through. */
-	case DHT_HASH_TYPE_DM:
-		break;
+            gf_msg_debug(this->name, 0, "found user-set layout");
+            layout->type = type;
+            /* Fall through. */
+        case DHT_HASH_TYPE_DM:
+            break;
         default:
-		gf_msg (this->name, GF_LOG_CRITICAL, 0,
-                        DHT_MSG_INVALID_DISK_LAYOUT,
-			"Invalid disk layout: "
-                        "Catastrophic error layout with unknown type found %d",
-			disk_layout[1]);
-		return -1;
-	}
-
-        commit_hash = ntoh32 (disk_layout[0]);
-        start_off = ntoh32 (disk_layout[2]);
-        stop_off  = ntoh32 (disk_layout[3]);
-
-        layout->list[pos].commit_hash = commit_hash;
-        layout->list[pos].start = start_off;
-        layout->list[pos].stop  = stop_off;
-
-        gf_msg_trace (this->name, 0,
-                      "merged to layout: %u - %u (type %d, hash %d) from %s",
-                      start_off, stop_off, commit_hash, type,
-                      layout->list[pos].xlator->name);
-
-        return 0;
+            gf_msg(this->name, GF_LOG_CRITICAL, 0, DHT_MSG_INVALID_DISK_LAYOUT,
+                   "Invalid disk layout: "
+                   "Catastrophic error layout with unknown type found %d",
+                   disk_layout[1]);
+            return -1;
+    }
+
+    commit_hash = ntoh32(disk_layout[0]);
+    start_off = ntoh32(disk_layout[2]);
+    stop_off = ntoh32(disk_layout[3]);
+
+    layout->list[pos].commit_hash = commit_hash;
+    layout->list[pos].start = start_off;
+    layout->list[pos].stop = stop_off;
+
+    gf_msg_trace(
+        this->name, 0, "merged to layout: %u - %u (type %d, hash %d) from %s",
+        start_off, stop_off, commit_hash, type, layout->list[pos].xlator->name);
+
+    return 0;
 }
 
 int
-dht_layout_merge (xlator_t *this, dht_layout_t *layout, xlator_t *subvol,
-                  int op_ret, int op_errno, dict_t *xattr)
+dht_layout_merge(xlator_t *this, dht_layout_t *layout, xlator_t *subvol,
+                 int op_ret, int op_errno, dict_t *xattr)
 {
-        int         i     = 0;
-        int         ret   = -1;
-        int         err   = -1;
-        void       *disk_layout_raw = NULL;
-        int         disk_layout_len = 0;
-        dht_conf_t *conf = this->private;
-
-        if (op_ret != 0) {
-                err = op_errno;
-        }
+    int i = 0;
+    int ret = -1;
+    int err = -1;
+    void *disk_layout_raw = NULL;
+    int disk_layout_len = 0;
+    dht_conf_t *conf = this->private;
 
-        if (!layout)
-                goto out;
+    if (op_ret != 0) {
+        err = op_errno;
+    }
 
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].xlator == NULL) {
-                        layout->list[i].err    = err;
-                        layout->list[i].xlator = subvol;
-                        break;
-                }
-        }
+    if (!layout)
+        goto out;
 
-        if (op_ret != 0) {
-                ret = 0;
-                goto out;
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].xlator == NULL) {
+            layout->list[i].err = err;
+            layout->list[i].xlator = subvol;
+            break;
         }
+    }
 
-        if (xattr) {
-                /* during lookup and not mkdir */
-                ret = dict_get_ptr_and_len (xattr, conf->xattr_name,
-					    &disk_layout_raw, &disk_layout_len);
-        }
+    if (op_ret != 0) {
+        ret = 0;
+        goto out;
+    }
 
-        if (ret != 0) {
-                layout->list[i].err = 0;
-                gf_msg_trace (this->name, 0,
-                              "Missing disk layout on %s. err = %d",
-                              subvol->name, err);
-                ret = 0;
-                goto out;
-        }
+    if (xattr) {
+        /* during lookup and not mkdir */
+        ret = dict_get_ptr_and_len(xattr, conf->xattr_name, &disk_layout_raw,
+                                   &disk_layout_len);
+    }
 
-        ret = dht_disk_layout_merge (this, layout, i, disk_layout_raw,
-				     disk_layout_len);
-        if (ret != 0) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_LAYOUT_MERGE_FAILED,
-                        "layout merge from subvolume %s failed",
-                        subvol->name);
-                goto out;
-        }
+    if (ret != 0) {
+        layout->list[i].err = 0;
+        gf_msg_trace(this->name, 0, "Missing disk layout on %s. err = %d",
+                     subvol->name, err);
+        ret = 0;
+        goto out;
+    }
 
-        if (layout->commit_hash == 0) {
-                layout->commit_hash = layout->list[i].commit_hash;
-        } else if (layout->commit_hash != layout->list[i].commit_hash) {
-                layout->commit_hash = DHT_LAYOUT_HASH_INVALID;
-        }
+    ret = dht_disk_layout_merge(this, layout, i, disk_layout_raw,
+                                disk_layout_len);
+    if (ret != 0) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_MERGE_FAILED,
+               "layout merge from subvolume %s failed", subvol->name);
+        goto out;
+    }
 
-        layout->list[i].err = 0;
+    if (layout->commit_hash == 0) {
+        layout->commit_hash = layout->list[i].commit_hash;
+    } else if (layout->commit_hash != layout->list[i].commit_hash) {
+        layout->commit_hash = DHT_LAYOUT_HASH_INVALID;
+    }
+
+    layout->list[i].err = 0;
 
 out:
-        return ret;
+    return ret;
 }
 
-
 void
-dht_layout_entry_swap (dht_layout_t *layout, int i, int j)
+dht_layout_entry_swap(dht_layout_t *layout, int i, int j)
 {
-        uint32_t  start_swap = 0;
-        uint32_t  stop_swap = 0;
-        uint32_t  commit_hash_swap = 0;
-        xlator_t *xlator_swap = 0;
-        int       err_swap = 0;
-
-        start_swap  = layout->list[i].start;
-        stop_swap   = layout->list[i].stop;
-        xlator_swap = layout->list[i].xlator;
-        err_swap    = layout->list[i].err;
-        commit_hash_swap = layout->list[i].commit_hash;
-
-        layout->list[i].start  = layout->list[j].start;
-        layout->list[i].stop   = layout->list[j].stop;
-        layout->list[i].xlator = layout->list[j].xlator;
-        layout->list[i].err    = layout->list[j].err;
-        layout->list[i].commit_hash = layout->list[j].commit_hash;
-
-        layout->list[j].start  = start_swap;
-        layout->list[j].stop   = stop_swap;
-        layout->list[j].xlator = xlator_swap;
-        layout->list[j].err    = err_swap;
-        layout->list[j].commit_hash = commit_hash_swap;
+    uint32_t start_swap = 0;
+    uint32_t stop_swap = 0;
+    uint32_t commit_hash_swap = 0;
+    xlator_t *xlator_swap = 0;
+    int err_swap = 0;
+
+    start_swap = layout->list[i].start;
+    stop_swap = layout->list[i].stop;
+    xlator_swap = layout->list[i].xlator;
+    err_swap = layout->list[i].err;
+    commit_hash_swap = layout->list[i].commit_hash;
+
+    layout->list[i].start = layout->list[j].start;
+    layout->list[i].stop = layout->list[j].stop;
+    layout->list[i].xlator = layout->list[j].xlator;
+    layout->list[i].err = layout->list[j].err;
+    layout->list[i].commit_hash = layout->list[j].commit_hash;
+
+    layout->list[j].start = start_swap;
+    layout->list[j].stop = stop_swap;
+    layout->list[j].xlator = xlator_swap;
+    layout->list[j].err = err_swap;
+    layout->list[j].commit_hash = commit_hash_swap;
 }
 
 void
-dht_layout_range_swap (dht_layout_t *layout, int i, int j)
+dht_layout_range_swap(dht_layout_t *layout, int i, int j)
 {
-        uint32_t  start_swap = 0;
-        uint32_t  stop_swap = 0;
+    uint32_t start_swap = 0;
+    uint32_t stop_swap = 0;
 
-        start_swap  = layout->list[i].start;
-        stop_swap   = layout->list[i].stop;
+    start_swap = layout->list[i].start;
+    stop_swap = layout->list[i].stop;
 
-        layout->list[i].start  = layout->list[j].start;
-        layout->list[i].stop   = layout->list[j].stop;
+    layout->list[i].start = layout->list[j].start;
+    layout->list[i].stop = layout->list[j].stop;
 
-        layout->list[j].start  = start_swap;
-        layout->list[j].stop   = stop_swap;
+    layout->list[j].start = start_swap;
+    layout->list[j].stop = stop_swap;
 }
 
 int64_t
-dht_layout_entry_cmp_volname (dht_layout_t *layout, int i, int j)
+dht_layout_entry_cmp_volname(dht_layout_t *layout, int i, int j)
 {
-        return (strcmp (layout->list[i].xlator->name,
-                        layout->list[j].xlator->name));
+    return (strcmp(layout->list[i].xlator->name, layout->list[j].xlator->name));
 }
 
 gf_boolean_t
-dht_is_subvol_in_layout (dht_layout_t *layout, xlator_t *xlator)
+dht_is_subvol_in_layout(dht_layout_t *layout, xlator_t *xlator)
 {
-        int i = 0;
-
-        for (i = 0; i < layout->cnt; i++) {
-                /* Check if xlator is already part of layout, and layout is
-                 * non-zero. */
-                if (!strcmp (layout->list[i].xlator->name, xlator->name)) {
-                        if (layout->list[i].start != layout->list[i].stop)
-                                return _gf_true;
-                        break;
-                }
-        }
-        return _gf_false;
+    int i = 0;
+
+    for (i = 0; i < layout->cnt; i++) {
+        /* Check if xlator is already part of layout, and layout is
+         * non-zero. */
+        if (!strcmp(layout->list[i].xlator->name, xlator->name)) {
+            if (layout->list[i].start != layout->list[i].stop)
+                return _gf_true;
+            break;
+        }
+    }
+    return _gf_false;
 }
 
 int64_t
-dht_layout_entry_cmp (dht_layout_t *layout, int i, int j)
+dht_layout_entry_cmp(dht_layout_t *layout, int i, int j)
 {
-        int64_t diff = 0;
+    int64_t diff = 0;
 
-        /* swap zero'ed out layouts to front, if needed */
-        if (!layout->list[j].start && !layout->list[j].stop) {
-                diff = (int64_t) layout->list[i].stop
-                       - (int64_t) layout->list[j].stop;
-                       goto out;
-        }
-        diff = (int64_t) layout->list[i].start
-                - (int64_t) layout->list[j].start;
+    /* swap zero'ed out layouts to front, if needed */
+    if (!layout->list[j].start && !layout->list[j].stop) {
+        diff = (int64_t)layout->list[i].stop - (int64_t)layout->list[j].stop;
+        goto out;
+    }
+    diff = (int64_t)layout->list[i].start - (int64_t)layout->list[j].start;
 
 out:
-        return diff;
+    return diff;
 }
 
-
 int
-dht_layout_sort (dht_layout_t *layout)
+dht_layout_sort(dht_layout_t *layout)
 {
-        int       i = 0;
-        int       j = 0;
-        int64_t   ret = 0;
+    int i = 0;
+    int j = 0;
+    int64_t ret = 0;
 
-        /* TODO: O(n^2) -- bad bad */
+    /* TODO: O(n^2) -- bad bad */
 
-        for (i = 0; i < layout->cnt - 1; i++) {
-                for (j = i + 1; j < layout->cnt; j++) {
-                        ret = dht_layout_entry_cmp (layout, i, j);
-                        if (ret > 0)
-                                dht_layout_entry_swap (layout, i, j);
-                }
+    for (i = 0; i < layout->cnt - 1; i++) {
+        for (j = i + 1; j < layout->cnt; j++) {
+            ret = dht_layout_entry_cmp(layout, i, j);
+            if (ret > 0)
+                dht_layout_entry_swap(layout, i, j);
         }
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_layout_sort_volname (dht_layout_t *layout)
+dht_layout_sort_volname(dht_layout_t *layout)
 {
-        int       i = 0;
-        int       j = 0;
-        int64_t   ret = 0;
+    int i = 0;
+    int j = 0;
+    int64_t ret = 0;
 
-        /* TODO: O(n^2) -- bad bad */
+    /* TODO: O(n^2) -- bad bad */
 
-        for (i = 0; i < layout->cnt - 1; i++) {
-                for (j = i + 1; j < layout->cnt; j++) {
-                        ret = dht_layout_entry_cmp_volname (layout, i, j);
-                        if (ret > 0)
-                                dht_layout_entry_swap (layout, i, j);
-                }
+    for (i = 0; i < layout->cnt - 1; i++) {
+        for (j = i + 1; j < layout->cnt; j++) {
+            ret = dht_layout_entry_cmp_volname(layout, i, j);
+            if (ret > 0)
+                dht_layout_entry_swap(layout, i, j);
         }
+    }
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_layout_anomalies (xlator_t *this, loc_t *loc, dht_layout_t *layout,
-                      uint32_t *holes_p, uint32_t *overlaps_p,
-                      uint32_t *missing_p, uint32_t *down_p, uint32_t *misc_p,
-                      uint32_t *no_space_p)
+dht_layout_anomalies(xlator_t *this, loc_t *loc, dht_layout_t *layout,
+                     uint32_t *holes_p, uint32_t *overlaps_p,
+                     uint32_t *missing_p, uint32_t *down_p, uint32_t *misc_p,
+                     uint32_t *no_space_p)
 {
-        uint32_t    overlaps = 0;
-        uint32_t    missing  = 0;
-        uint32_t    down     = 0;
-        uint32_t    misc     = 0;
-        uint32_t    hole_cnt = 0;
-        uint32_t    overlap_cnt = 0;
-        int         i = 0;
-        int         ret = 0;
-        uint32_t    prev_stop = 0;
-        uint32_t    last_stop = 0;
-        char        is_virgin = 1;
-        uint32_t    no_space  = 0;
-
-        /* This function scans through the layout spread of a directory to
-           check if there are any anomalies. Prior to calling this function
-           the layout entries should be sorted in the ascending order.
-
-           If the layout entry has err != 0
-                then increment the corresponding anomaly.
-           else
-                if (start of the current layout entry > stop + 1 of previous
-                   non erroneous layout entry)
-                        then it indicates a hole in the layout
-                if (start of the current layout entry < stop + 1 of previous
-                    non erroneous layout entry)
-                         then it indicates an overlap in the layout
-        */
-        last_stop = layout->list[0].start - 1;
-        prev_stop = last_stop;
-
-        for (i = 0; i < layout->cnt; i++) {
-                switch (layout->list[i].err) {
-                case -1:
-                case ENOENT:
-                case ESTALE:
-                        missing++;
-                        continue;
-                case ENOTCONN:
-                        down++;
-                        continue;
-                case ENOSPC:
-                        no_space++;
-                        continue;
-                case 0:
-                        /* if err == 0 and start == stop, then it is a non misc++;
-                         * participating subvolume(spread-cnt). Then, do not
-                         * check for anomalies. If start != stop, then treat it
-                         * as misc err */
-                        if (layout->list[i].start == layout->list[i].stop) {
-                                continue;
-                        }
-                        break;
-                default:
-                        misc++;
-                        continue;
-                 }
-
-                is_virgin = 0;
-
-                if ((prev_stop + 1) < layout->list[i].start) {
-                        hole_cnt++;
+    uint32_t overlaps = 0;
+    uint32_t missing = 0;
+    uint32_t down = 0;
+    uint32_t misc = 0;
+    uint32_t hole_cnt = 0;
+    uint32_t overlap_cnt = 0;
+    int i = 0;
+    int ret = 0;
+    uint32_t prev_stop = 0;
+    uint32_t last_stop = 0;
+    char is_virgin = 1;
+    uint32_t no_space = 0;
+
+    /* This function scans through the layout spread of a directory to
+       check if there are any anomalies. Prior to calling this function
+       the layout entries should be sorted in the ascending order.
+
+       If the layout entry has err != 0
+            then increment the corresponding anomaly.
+       else
+            if (start of the current layout entry > stop + 1 of previous
+               non erroneous layout entry)
+                    then it indicates a hole in the layout
+            if (start of the current layout entry < stop + 1 of previous
+                non erroneous layout entry)
+                     then it indicates an overlap in the layout
+    */
+    last_stop = layout->list[0].start - 1;
+    prev_stop = last_stop;
+
+    for (i = 0; i < layout->cnt; i++) {
+        switch (layout->list[i].err) {
+            case -1:
+            case ENOENT:
+            case ESTALE:
+                missing++;
+                continue;
+            case ENOTCONN:
+                down++;
+                continue;
+            case ENOSPC:
+                no_space++;
+                continue;
+            case 0:
+                /* if err == 0 and start == stop, then it is a non misc++;
+                 * participating subvolume(spread-cnt). Then, do not
+                 * check for anomalies. If start != stop, then treat it
+                 * as misc err */
+                if (layout->list[i].start == layout->list[i].stop) {
+                    continue;
                 }
+                break;
+            default:
+                misc++;
+                continue;
+        }
 
-                if ((prev_stop + 1) > layout->list[i].start) {
-                        overlap_cnt++;
-                        overlaps += ((prev_stop + 1) - layout->list[i].start);
-                }
-                prev_stop = layout->list[i].stop;
+        is_virgin = 0;
+
+        if ((prev_stop + 1) < layout->list[i].start) {
+            hole_cnt++;
         }
 
-        if ((last_stop - prev_stop) || is_virgin)
-                hole_cnt++;
+        if ((prev_stop + 1) > layout->list[i].start) {
+            overlap_cnt++;
+            overlaps += ((prev_stop + 1) - layout->list[i].start);
+        }
+        prev_stop = layout->list[i].stop;
+    }
 
-        if (holes_p)
-                *holes_p = hole_cnt;
+    if ((last_stop - prev_stop) || is_virgin)
+        hole_cnt++;
 
-        if (overlaps_p)
-                *overlaps_p = overlap_cnt;
+    if (holes_p)
+        *holes_p = hole_cnt;
 
-        if (missing_p)
-                *missing_p = missing;
+    if (overlaps_p)
+        *overlaps_p = overlap_cnt;
 
-        if (down_p)
-                *down_p = down;
+    if (missing_p)
+        *missing_p = missing;
 
-        if (misc_p)
-                *misc_p = misc;
+    if (down_p)
+        *down_p = down;
 
-        if (no_space_p)
-                *no_space_p = no_space;
+    if (misc_p)
+        *misc_p = misc;
 
-        return ret;
-}
+    if (no_space_p)
+        *no_space_p = no_space;
 
+    return ret;
+}
 
 int
-dht_layout_missing_dirs (dht_layout_t *layout)
+dht_layout_missing_dirs(dht_layout_t *layout)
 {
-        int i = 0, missing = 0;
+    int i = 0, missing = 0;
 
-        if (layout == NULL)
-                goto out;
+    if (layout == NULL)
+        goto out;
 
-        for (i = 0; i < layout->cnt; i++) {
-                if ((layout->list[i].err == ENOENT)
-                    || ((layout->list[i].err == -1)
-                        && (layout->list[i].start == 0)
-                        && (layout->list[i].stop == 0))) {
-                        missing++;
-                }
+    for (i = 0; i < layout->cnt; i++) {
+        if ((layout->list[i].err == ENOENT) ||
+            ((layout->list[i].err == -1) && (layout->list[i].start == 0) &&
+             (layout->list[i].stop == 0))) {
+            missing++;
         }
+    }
 
 out:
-        return missing;
+    return missing;
 }
 
-
 int
-dht_layout_normalize (xlator_t *this, loc_t *loc, dht_layout_t *layout)
+dht_layout_normalize(xlator_t *this, loc_t *loc, dht_layout_t *layout)
 {
-        int          ret   = 0;
-        uint32_t     holes = 0;
-        uint32_t     overlaps = 0;
-        uint32_t     missing = 0;
-        uint32_t     down = 0;
-        uint32_t     misc = 0, missing_dirs = 0;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
-
-        ret = dht_layout_sort (layout);
-        if (ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_LAYOUT_SORT_FAILED,
-                        "sort failed?! how the ....");
-                goto out;
-        }
-
-        gf_uuid_unparse(loc->gfid, gfid);
-
-        ret = dht_layout_anomalies (this, loc, layout,
-                                    &holes, &overlaps,
-                                    &missing, &down, &misc, NULL);
-        if (ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_FIND_LAYOUT_ANOMALIES_ERROR,
-                        "Error finding anomalies in %s, gfid = %s",
-                        loc->path, gfid);
-                goto out;
-        }
-
-        if (holes || overlaps) {
-                if (missing == layout->cnt) {
-                        gf_msg_debug (this->name, 0,
-                                      "Directory %s looked up first time"
-                                      " gfid = %s", loc->path, gfid);
-                } else {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_ANOMALIES_INFO,
-                                "Found anomalies in %s (gfid = %s). "
-                                "Holes=%d overlaps=%d",
-                                loc->path, gfid, holes, overlaps );
-                }
-                ret = -1;
-        }
-
-        if (ret >= 0) {
-                missing_dirs = dht_layout_missing_dirs (layout);
-                /* TODO During DHT selfheal rewrite (almost) find a better place
-                 * to detect this - probably in dht_layout_anomalies()
-                 */
-                if (missing_dirs > 0)
-                        ret += missing_dirs;
-        }
+    int ret = 0;
+    uint32_t holes = 0;
+    uint32_t overlaps = 0;
+    uint32_t missing = 0;
+    uint32_t down = 0;
+    uint32_t misc = 0, missing_dirs = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    ret = dht_layout_sort(layout);
+    if (ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_SORT_FAILED,
+               "sort failed?! how the ....");
+        goto out;
+    }
+
+    gf_uuid_unparse(loc->gfid, gfid);
+
+    ret = dht_layout_anomalies(this, loc, layout, &holes, &overlaps, &missing,
+                               &down, &misc, NULL);
+    if (ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, 0,
+               DHT_MSG_FIND_LAYOUT_ANOMALIES_ERROR,
+               "Error finding anomalies in %s, gfid = %s", loc->path, gfid);
+        goto out;
+    }
+
+    if (holes || overlaps) {
+        if (missing == layout->cnt) {
+            gf_msg_debug(this->name, 0,
+                         "Directory %s looked up first time"
+                         " gfid = %s",
+                         loc->path, gfid);
+        } else {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_ANOMALIES_INFO,
+                   "Found anomalies in %s (gfid = %s). "
+                   "Holes=%d overlaps=%d",
+                   loc->path, gfid, holes, overlaps);
+        }
+        ret = -1;
+    }
+
+    if (ret >= 0) {
+        missing_dirs = dht_layout_missing_dirs(layout);
+        /* TODO During DHT selfheal rewrite (almost) find a better place
+         * to detect this - probably in dht_layout_anomalies()
+         */
+        if (missing_dirs > 0)
+            ret += missing_dirs;
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_dir_has_layout (dict_t *xattr, char *name)
+dht_dir_has_layout(dict_t *xattr, char *name)
 {
+    void *disk_layout_raw = NULL;
 
-        void     *disk_layout_raw = NULL;
-
-        return dict_get_ptr (xattr, name, &disk_layout_raw);
+    return dict_get_ptr(xattr, name, &disk_layout_raw);
 }
 
 int
-dht_layout_dir_mismatch (xlator_t *this, dht_layout_t *layout, xlator_t *subvol,
-                         loc_t *loc, dict_t *xattr)
+dht_layout_dir_mismatch(xlator_t *this, dht_layout_t *layout, xlator_t *subvol,
+                        loc_t *loc, dict_t *xattr)
 {
-        int         idx = 0;
-        int         pos = -1;
-        int         ret = 0;
-        int         err = 0;
-        int         dict_ret = 0;
-        int32_t     disk_layout[4];
-        void       *disk_layout_raw = NULL;
-        uint32_t    start_off = -1;
-        uint32_t    stop_off = -1;
-        uint32_t    commit_hash = -1;
-        dht_conf_t *conf = this->private;
-        char        gfid[GF_UUID_BUF_SIZE] = {0};
-
-        if(loc && loc->inode)
-                gf_uuid_unparse(loc->inode->gfid, gfid);
-
-        for (idx = 0; idx < layout->cnt; idx++) {
-                if (layout->list[idx].xlator == subvol) {
-                        pos = idx;
-                        break;
-                }
-        }
-
-        if (pos == -1) {
-                if (loc) {
-                        gf_msg_debug (this->name, 0,
-                                      "%s - no layout info for subvolume %s",
-                                      loc ? loc->path : "path not found",
-                                      subvol->name);
-                }
-                ret = 1;
-                goto out;
-        }
-
-        err = layout->list[pos].err;
-
-        if (!xattr) {
-                if (err == 0) {
-                        if (loc) {
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_DICT_GET_FAILED,
-                                        "%s: xattr dictionary is NULL",
-                                        loc->path);
-                        } else {
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_DICT_GET_FAILED,
-                                        "path not found: "
-                                        "xattr dictionary is NULL");
-                        }
-                        ret = -1;
-                }
-                goto out;
-        }
-
-        dict_ret = dict_get_ptr (xattr, conf->xattr_name,
-                                 &disk_layout_raw);
-
-        if (dict_ret < 0) {
-                if (err == 0 && layout->list[pos].stop) {
-                        if (loc) {
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_DISK_LAYOUT_MISSING,
-                                    "%s: Disk layout missing, gfid = %s",
-                                    loc->path, gfid);
-                        } else {
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_DISK_LAYOUT_MISSING,
-                                        "path not found: "
-                                        "Disk layout missing, gfid = %s",
-                                        gfid);
-                        }
-                        ret = -1;
-                }
-                goto out;
-        }
-
-        memcpy (disk_layout, disk_layout_raw, sizeof (disk_layout));
-
-        start_off = ntoh32 (disk_layout[2]);
-        stop_off  = ntoh32 (disk_layout[3]);
-        commit_hash = ntoh32 (disk_layout[0]);
-
-        if ((layout->list[pos].start != start_off)
-            || (layout->list[pos].stop != stop_off)
-            || (layout->list[pos].commit_hash != commit_hash)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LAYOUT_INFO,
-                        "subvol: %s; inode layout - %"PRIu32" - %"PRIu32
-                        " - %"PRIu32"; "
-                        "disk layout - %"PRIu32" - %"PRIu32" - %"PRIu32,
-                        layout->list[pos].xlator->name,
-                        layout->list[pos].start, layout->list[pos].stop,
-                        layout->list[pos].commit_hash,
-                        start_off, stop_off, commit_hash);
-                ret = 1;
-        } else {
-                ret = 0;
-        }
+    int idx = 0;
+    int pos = -1;
+    int ret = 0;
+    int err = 0;
+    int dict_ret = 0;
+    int32_t disk_layout[4];
+    void *disk_layout_raw = NULL;
+    uint32_t start_off = -1;
+    uint32_t stop_off = -1;
+    uint32_t commit_hash = -1;
+    dht_conf_t *conf = this->private;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    if (loc && loc->inode)
+        gf_uuid_unparse(loc->inode->gfid, gfid);
+
+    for (idx = 0; idx < layout->cnt; idx++) {
+        if (layout->list[idx].xlator == subvol) {
+            pos = idx;
+            break;
+        }
+    }
+
+    if (pos == -1) {
+        if (loc) {
+            gf_msg_debug(this->name, 0, "%s - no layout info for subvolume %s",
+                         loc ? loc->path : "path not found", subvol->name);
+        }
+        ret = 1;
+        goto out;
+    }
+
+    err = layout->list[pos].err;
+
+    if (!xattr) {
+        if (err == 0) {
+            if (loc) {
+                gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_DICT_GET_FAILED,
+                       "%s: xattr dictionary is NULL", loc->path);
+            } else {
+                gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_DICT_GET_FAILED,
+                       "path not found: "
+                       "xattr dictionary is NULL");
+            }
+            ret = -1;
+        }
+        goto out;
+    }
+
+    dict_ret = dict_get_ptr(xattr, conf->xattr_name, &disk_layout_raw);
+
+    if (dict_ret < 0) {
+        if (err == 0 && layout->list[pos].stop) {
+            if (loc) {
+                gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_DISK_LAYOUT_MISSING,
+                       "%s: Disk layout missing, gfid = %s", loc->path, gfid);
+            } else {
+                gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_DISK_LAYOUT_MISSING,
+                       "path not found: "
+                       "Disk layout missing, gfid = %s",
+                       gfid);
+            }
+            ret = -1;
+        }
+        goto out;
+    }
+
+    memcpy(disk_layout, disk_layout_raw, sizeof(disk_layout));
+
+    start_off = ntoh32(disk_layout[2]);
+    stop_off = ntoh32(disk_layout[3]);
+    commit_hash = ntoh32(disk_layout[0]);
+
+    if ((layout->list[pos].start != start_off) ||
+        (layout->list[pos].stop != stop_off) ||
+        (layout->list[pos].commit_hash != commit_hash)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LAYOUT_INFO,
+               "subvol: %s; inode layout - %" PRIu32 " - %" PRIu32 " - %" PRIu32
+               "; "
+               "disk layout - %" PRIu32 " - %" PRIu32 " - %" PRIu32,
+               layout->list[pos].xlator->name, layout->list[pos].start,
+               layout->list[pos].stop, layout->list[pos].commit_hash, start_off,
+               stop_off, commit_hash);
+        ret = 1;
+    } else {
+        ret = 0;
+    }
 out:
-        return ret;
+    return ret;
 }
 
-
 int
-dht_layout_preset (xlator_t *this, xlator_t *subvol, inode_t *inode)
+dht_layout_preset(xlator_t *this, xlator_t *subvol, inode_t *inode)
 {
-        dht_layout_t *layout = NULL;
-        int           ret = -1;
-        dht_conf_t   *conf = NULL;
-
-        conf = this->private;
-        if (!conf)
-                goto out;
-
-
-        layout = dht_layout_for_subvol (this, subvol);
-        if (!layout) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_SUBVOL_NO_LAYOUT_INFO,
-                        "no pre-set layout for subvolume %s",
-                        subvol ? subvol->name : "<nil>");
-                ret = -1;
-                goto out;
-        }
-
-        gf_msg_debug (this->name, 0, "file = %s, subvol = %s",
-                      uuid_utoa (inode->gfid), subvol ? subvol->name : "<nil>");
-
-        LOCK (&conf->layout_lock);
-        {
-                dht_inode_ctx_layout_set (inode, this, layout);
-        }
-
-        UNLOCK (&conf->layout_lock);
-
-        ret = 0;
+    dht_layout_t *layout = NULL;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+
+    conf = this->private;
+    if (!conf)
+        goto out;
+
+    layout = dht_layout_for_subvol(this, subvol);
+    if (!layout) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_NO_LAYOUT_INFO,
+               "no pre-set layout for subvolume %s",
+               subvol ? subvol->name : "<nil>");
+        ret = -1;
+        goto out;
+    }
+
+    gf_msg_debug(this->name, 0, "file = %s, subvol = %s",
+                 uuid_utoa(inode->gfid), subvol ? subvol->name : "<nil>");
+
+    LOCK(&conf->layout_lock);
+    {
+        dht_inode_ctx_layout_set(inode, this, layout);
+    }
+
+    UNLOCK(&conf->layout_lock);
+
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_layout_index_for_subvol (dht_layout_t *layout, xlator_t *subvol)
+dht_layout_index_for_subvol(dht_layout_t *layout, xlator_t *subvol)
 {
-        int i = 0, ret = -1;
+    int i = 0, ret = -1;
 
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].xlator == subvol) {
-                        ret = i;
-                        break;
-                }
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].xlator == subvol) {
+            ret = i;
+            break;
         }
+    }
 
-        return ret;
+    return ret;
 }
diff --git a/xlators/cluster/dht/src/dht-linkfile.c b/xlators/cluster/dht/src/dht-linkfile.c
index a6d994b4157..eb1695f7e05 100644
--- a/xlators/cluster/dht/src/dht-linkfile.c
+++ b/xlators/cluster/dht/src/dht-linkfile.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "glusterfs.h"
 #include "xlator.h"
 #include "compat.h"
@@ -16,343 +15,325 @@
 #include "dht-messages.h"
 
 int
-dht_linkfile_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int op_ret, int op_errno,
-                         inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                         struct iatt *postparent)
+dht_linkfile_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, inode_t *inode,
+                        struct iatt *stbuf, dict_t *xattr,
+                        struct iatt *postparent)
 {
-        char          is_linkfile   = 0;
-        dht_conf_t   *conf          = NULL;
-        dht_local_t  *local         = NULL;
-        xlator_t     *prev          = NULL;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        prev = cookie;
-        conf = this->private;
-
-        if (op_ret)
-                goto out;
-
-        gf_uuid_unparse(local->loc.gfid, gfid);
-
-        is_linkfile = check_is_linkfile (inode, stbuf, xattr,
-                                         conf->link_xattr_name);
-        if (!is_linkfile)
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_NOT_LINK_FILE_ERROR,
-                        "got non-linkfile %s:%s, gfid = %s",
-                        prev->name, local->loc.path, gfid);
+    char is_linkfile = 0;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+
+    if (op_ret)
+        goto out;
+
+    gf_uuid_unparse(local->loc.gfid, gfid);
+
+    is_linkfile = check_is_linkfile(inode, stbuf, xattr, conf->link_xattr_name);
+    if (!is_linkfile)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_NOT_LINK_FILE_ERROR,
+               "got non-linkfile %s:%s, gfid = %s", prev->name, local->loc.path,
+               gfid);
 out:
-        local->linkfile.linkfile_cbk (frame, cookie, this, op_ret, op_errno,
-                                      inode, stbuf, postparent, postparent,
-                                      xattr);
-        return 0;
+    local->linkfile.linkfile_cbk(frame, cookie, this, op_ret, op_errno, inode,
+                                 stbuf, postparent, postparent, xattr);
+    return 0;
 }
 
 #define is_equal(a, b) ((a) == (b))
 int
-dht_linkfile_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int op_ret, int op_errno, inode_t *inode,
-                         struct iatt *stbuf, struct iatt *preparent,
-                         struct iatt *postparent, dict_t *xdata)
+dht_linkfile_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, inode_t *inode,
+                        struct iatt *stbuf, struct iatt *preparent,
+                        struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *subvol = NULL;
-        dict_t       *xattrs = NULL;
-        dht_conf_t   *conf = NULL;
-        int           ret = -1;
-
-        local = frame->local;
-
-        if (!op_ret)
-                local->linked = _gf_true;
-
-        FRAME_SU_UNDO (frame, dht_local_t);
-
-        if (op_ret && (op_errno == EEXIST)) {
-                conf = this->private;
-                subvol = cookie;
-                if (!subvol)
-                        goto out;
-                xattrs = dict_new ();
-                if (!xattrs)
-                        goto out;
-                ret = dict_set_uint32 (xattrs, conf->link_xattr_name, 256);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dictionary value. key : %s",
-                                conf->link_xattr_name);
-                        goto out;
-                }
-
-                STACK_WIND_COOKIE (frame, dht_linkfile_lookup_cbk, subvol,
-                                   subvol, subvol->fops->lookup, &local->linkfile.loc,
-                                   xattrs);
-                if (xattrs)
-                        dict_unref (xattrs);
-                return 0;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    dict_t *xattrs = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+
+    local = frame->local;
+
+    if (!op_ret)
+        local->linked = _gf_true;
+
+    FRAME_SU_UNDO(frame, dht_local_t);
+
+    if (op_ret && (op_errno == EEXIST)) {
+        conf = this->private;
+        subvol = cookie;
+        if (!subvol)
+            goto out;
+        xattrs = dict_new();
+        if (!xattrs)
+            goto out;
+        ret = dict_set_uint32(xattrs, conf->link_xattr_name, 256);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dictionary value. key : %s",
+                   conf->link_xattr_name);
+            goto out;
         }
-out:
-        local->linkfile.linkfile_cbk (frame, cookie, this, op_ret, op_errno,
-                                      inode, stbuf, preparent, postparent,
-                                      xdata);
+
+        STACK_WIND_COOKIE(frame, dht_linkfile_lookup_cbk, subvol, subvol,
+                          subvol->fops->lookup, &local->linkfile.loc, xattrs);
         if (xattrs)
-                dict_unref (xattrs);
+            dict_unref(xattrs);
         return 0;
+    }
+out:
+    local->linkfile.linkfile_cbk(frame, cookie, this, op_ret, op_errno, inode,
+                                 stbuf, preparent, postparent, xdata);
+    if (xattrs)
+        dict_unref(xattrs);
+    return 0;
 }
 
-
 int
-dht_linkfile_create (call_frame_t *frame, fop_mknod_cbk_t linkfile_cbk,
-                     xlator_t *this,
-                     xlator_t *tovol, xlator_t *fromvol, loc_t *loc)
+dht_linkfile_create(call_frame_t *frame, fop_mknod_cbk_t linkfile_cbk,
+                    xlator_t *this, xlator_t *tovol, xlator_t *fromvol,
+                    loc_t *loc)
 {
-        dht_local_t *local = NULL;
-        dict_t      *dict = NULL;
-        int          need_unref = 0;
-        int          ret = 0;
-        dht_conf_t  *conf = this->private;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        local->linkfile.linkfile_cbk = linkfile_cbk;
-        local->linkfile.srcvol = tovol;
-        loc_copy (&local->linkfile.loc, loc);
-
-        local->linked = _gf_false;
-
-        dict = local->params;
-        if (!dict) {
-                dict = dict_new ();
-                if (!dict)
-                        goto out;
-                need_unref = 1;
-        }
-
-
-        if (!gf_uuid_is_null (local->gfid)) {
-                gf_uuid_unparse(local->gfid, gfid);
-
-                ret = dict_set_gfuuid (dict, "gfid-req", local->gfid, true);
-                if (ret)
-                        gf_msg ("dht-linkfile", GF_LOG_INFO, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "%s: Failed to set dictionary value: "
-                                "key = gfid-req, gfid = %s ", loc->path, gfid);
-        } else {
-                gf_uuid_unparse(loc->gfid, gfid);
-        }
-
-        ret = dict_set_str (dict, GLUSTERFS_INTERNAL_FOP_KEY, "yes");
+    dht_local_t *local = NULL;
+    dict_t *dict = NULL;
+    int need_unref = 0;
+    int ret = 0;
+    dht_conf_t *conf = this->private;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+    local->linkfile.linkfile_cbk = linkfile_cbk;
+    local->linkfile.srcvol = tovol;
+    loc_copy(&local->linkfile.loc, loc);
+
+    local->linked = _gf_false;
+
+    dict = local->params;
+    if (!dict) {
+        dict = dict_new();
+        if (!dict)
+            goto out;
+        need_unref = 1;
+    }
+
+    if (!gf_uuid_is_null(local->gfid)) {
+        gf_uuid_unparse(local->gfid, gfid);
+
+        ret = dict_set_gfuuid(dict, "gfid-req", local->gfid, true);
         if (ret)
-                gf_msg ("dht-linkfile", GF_LOG_INFO, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "%s: Failed to set dictionary value: key = %s,"
-                        " gfid = %s", loc->path,
-                        GLUSTERFS_INTERNAL_FOP_KEY, gfid);
-
-        ret = dict_set_str (dict, conf->link_xattr_name, tovol->name);
-
-        if (ret < 0) {
-                gf_msg (frame->this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_CREATE_LINK_FAILED,
-                        "%s: failed to initialize linkfile data, gfid = %s",
-                        loc->path, gfid);
-                goto out;
-        }
-
-        local->link_subvol = fromvol;
-        /* Always create as root:root. dht_linkfile_attr_heal fixes the
-         * ownsership */
-        FRAME_SU_DO (frame, dht_local_t);
-        STACK_WIND_COOKIE (frame, dht_linkfile_create_cbk, fromvol, fromvol,
-                           fromvol->fops->mknod, loc,
-                           S_IFREG | DHT_LINKFILE_MODE, 0, 0, dict);
-
-        if (need_unref && dict)
-                dict_unref (dict);
-
-        return 0;
+            gf_msg("dht-linkfile", GF_LOG_INFO, 0, DHT_MSG_DICT_SET_FAILED,
+                   "%s: Failed to set dictionary value: "
+                   "key = gfid-req, gfid = %s ",
+                   loc->path, gfid);
+    } else {
+        gf_uuid_unparse(loc->gfid, gfid);
+    }
+
+    ret = dict_set_str(dict, GLUSTERFS_INTERNAL_FOP_KEY, "yes");
+    if (ret)
+        gf_msg("dht-linkfile", GF_LOG_INFO, 0, DHT_MSG_DICT_SET_FAILED,
+               "%s: Failed to set dictionary value: key = %s,"
+               " gfid = %s",
+               loc->path, GLUSTERFS_INTERNAL_FOP_KEY, gfid);
+
+    ret = dict_set_str(dict, conf->link_xattr_name, tovol->name);
+
+    if (ret < 0) {
+        gf_msg(frame->this->name, GF_LOG_INFO, 0, DHT_MSG_CREATE_LINK_FAILED,
+               "%s: failed to initialize linkfile data, gfid = %s", loc->path,
+               gfid);
+        goto out;
+    }
+
+    local->link_subvol = fromvol;
+    /* Always create as root:root. dht_linkfile_attr_heal fixes the
+     * ownsership */
+    FRAME_SU_DO(frame, dht_local_t);
+    STACK_WIND_COOKIE(frame, dht_linkfile_create_cbk, fromvol, fromvol,
+                      fromvol->fops->mknod, loc, S_IFREG | DHT_LINKFILE_MODE, 0,
+                      0, dict);
+
+    if (need_unref && dict)
+        dict_unref(dict);
+
+    return 0;
 out:
-        local->linkfile.linkfile_cbk (frame, frame->this, frame->this, -1, ENOMEM,
-                                      loc->inode, NULL, NULL, NULL, NULL);
+    local->linkfile.linkfile_cbk(frame, frame->this, frame->this, -1, ENOMEM,
+                                 loc->inode, NULL, NULL, NULL, NULL);
 
-        if (need_unref && dict)
-                dict_unref (dict);
+    if (need_unref && dict)
+        dict_unref(dict);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_linkfile_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int32_t op_ret, int32_t op_errno,
-                         struct iatt *preparent, struct iatt *postparent,
-                         dict_t *xdata)
+dht_linkfile_unlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno,
+                        struct iatt *preparent, struct iatt *postparent,
+                        dict_t *xdata)
 {
-        dht_local_t   *local = NULL;
-        xlator_t      *subvol = NULL;
-        char           gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        subvol = cookie;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
+    local = frame->local;
+    subvol = cookie;
 
-        if (op_ret == -1) {
-
-                gf_uuid_unparse(local->loc.gfid, gfid);
-                gf_msg (this->name, GF_LOG_INFO, op_errno,
-                        DHT_MSG_UNLINK_FAILED,
-                        "Unlinking linkfile %s (gfid = %s)on "
-                        "subvolume %s failed ",
-                        local->loc.path, gfid, subvol->name);
-        }
+    if (op_ret == -1) {
+        gf_uuid_unparse(local->loc.gfid, gfid);
+        gf_msg(this->name, GF_LOG_INFO, op_errno, DHT_MSG_UNLINK_FAILED,
+               "Unlinking linkfile %s (gfid = %s)on "
+               "subvolume %s failed ",
+               local->loc.path, gfid, subvol->name);
+    }
 
-        DHT_STACK_DESTROY (frame);
+    DHT_STACK_DESTROY(frame);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_linkfile_unlink (call_frame_t *frame, xlator_t *this,
-                     xlator_t *subvol, loc_t *loc)
+dht_linkfile_unlink(call_frame_t *frame, xlator_t *this, xlator_t *subvol,
+                    loc_t *loc)
 {
-        call_frame_t *unlink_frame = NULL;
-        dht_local_t  *unlink_local = NULL;
+    call_frame_t *unlink_frame = NULL;
+    dht_local_t *unlink_local = NULL;
 
-        unlink_frame = copy_frame (frame);
-        if (!unlink_frame) {
-                goto err;
-        }
+    unlink_frame = copy_frame(frame);
+    if (!unlink_frame) {
+        goto err;
+    }
 
-        /* Using non-fop value here, as anyways, 'local->fop' is not used in
-           this particular case */
-        unlink_local = dht_local_init (unlink_frame, loc, NULL,
-                                       GF_FOP_MAXVALUE);
-        if (!unlink_local) {
-                goto err;
-        }
+    /* Using non-fop value here, as anyways, 'local->fop' is not used in
+       this particular case */
+    unlink_local = dht_local_init(unlink_frame, loc, NULL, GF_FOP_MAXVALUE);
+    if (!unlink_local) {
+        goto err;
+    }
 
-        STACK_WIND_COOKIE (unlink_frame, dht_linkfile_unlink_cbk, subvol,
-                           subvol, subvol->fops->unlink,
-                           &unlink_local->loc, 0, NULL);
+    STACK_WIND_COOKIE(unlink_frame, dht_linkfile_unlink_cbk, subvol, subvol,
+                      subvol->fops->unlink, &unlink_local->loc, 0, NULL);
 
-        return 0;
+    return 0;
 err:
-        if (unlink_frame)
-                DHT_STACK_DESTROY (unlink_frame);
+    if (unlink_frame)
+        DHT_STACK_DESTROY(unlink_frame);
 
-        return -1;
+    return -1;
 }
 
-
 xlator_t *
-dht_linkfile_subvol (xlator_t *this, inode_t *inode, struct iatt *stbuf,
-                     dict_t *xattr)
+dht_linkfile_subvol(xlator_t *this, inode_t *inode, struct iatt *stbuf,
+                    dict_t *xattr)
 {
-        dht_conf_t *conf = NULL;
-        xlator_t   *subvol = NULL;
-        void       *volname = NULL;
-        int         i = 0, ret = 0;
+    dht_conf_t *conf = NULL;
+    xlator_t *subvol = NULL;
+    void *volname = NULL;
+    int i = 0, ret = 0;
 
-        conf = this->private;
+    conf = this->private;
 
-        if (!xattr)
-                goto out;
+    if (!xattr)
+        goto out;
 
-        ret = dict_get_ptr (xattr, conf->link_xattr_name, &volname);
+    ret = dict_get_ptr(xattr, conf->link_xattr_name, &volname);
 
-        if ((-1 == ret) || !volname)
-                goto out;
+    if ((-1 == ret) || !volname)
+        goto out;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (strcmp (conf->subvolumes[i]->name, (char *)volname) == 0) {
-                        subvol = conf->subvolumes[i];
-                        break;
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (strcmp(conf->subvolumes[i]->name, (char *)volname) == 0) {
+            subvol = conf->subvolumes[i];
+            break;
         }
+    }
 
 out:
-        return subvol;
+    return subvol;
 }
 
 int
-dht_linkfile_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                          int op_ret, int op_errno, struct iatt *statpre,
-                          struct iatt *statpost, dict_t *xdata)
+dht_linkfile_setattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                         int op_ret, int op_errno, struct iatt *statpre,
+                         struct iatt *statpost, dict_t *xdata)
 {
-        dht_local_t *local = NULL;
-        loc_t *loc = NULL;
+    dht_local_t *local = NULL;
+    loc_t *loc = NULL;
 
-        local = frame->local;
-        loc = &local->loc;
+    local = frame->local;
+    loc = &local->loc;
 
-        if (op_ret)
-                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                        DHT_MSG_SETATTR_FAILED,
-                        "Failed to set attr uid/gid on %s"
-                        " :<gfid:%s> ",
-                        (loc->path? loc->path: "NULL"),
-                        uuid_utoa(local->gfid));
+    if (op_ret)
+        gf_msg(this->name, GF_LOG_ERROR, op_errno, DHT_MSG_SETATTR_FAILED,
+               "Failed to set attr uid/gid on %s"
+               " :<gfid:%s> ",
+               (loc->path ? loc->path : "NULL"), uuid_utoa(local->gfid));
 
-        DHT_STACK_DESTROY (frame);
+    DHT_STACK_DESTROY(frame);
 
-       return 0;
+    return 0;
 }
 
 int
-dht_linkfile_attr_heal (call_frame_t *frame, xlator_t *this)
+dht_linkfile_attr_heal(call_frame_t *frame, xlator_t *this)
 {
-        int           ret         = -1;
-        call_frame_t  *copy       = NULL;
-        dht_local_t   *local      = NULL;
-        dht_local_t   *copy_local = NULL;
-        xlator_t      *subvol     = NULL;
-        struct iatt   stbuf       = {0,};
-        dict_t        *xattr      = NULL;
-
-        local = frame->local;
-
-        GF_VALIDATE_OR_GOTO ("dht", local, out);
-        GF_VALIDATE_OR_GOTO ("dht", local->link_subvol, out);
-
-        if (local->stbuf.ia_type == IA_INVAL)
-                return 0;
+    int ret = -1;
+    call_frame_t *copy = NULL;
+    dht_local_t *local = NULL;
+    dht_local_t *copy_local = NULL;
+    xlator_t *subvol = NULL;
+    struct iatt stbuf = {
+        0,
+    };
+    dict_t *xattr = NULL;
+
+    local = frame->local;
+
+    GF_VALIDATE_OR_GOTO("dht", local, out);
+    GF_VALIDATE_OR_GOTO("dht", local->link_subvol, out);
+
+    if (local->stbuf.ia_type == IA_INVAL)
+        return 0;
 
-        DHT_MARK_FOP_INTERNAL (xattr);
+    DHT_MARK_FOP_INTERNAL(xattr);
 
-        gf_uuid_copy (local->loc.gfid, local->stbuf.ia_gfid);
+    gf_uuid_copy(local->loc.gfid, local->stbuf.ia_gfid);
 
-        copy = copy_frame (frame);
+    copy = copy_frame(frame);
 
-        if (!copy)
-                goto out;
+    if (!copy)
+        goto out;
 
-       copy_local = dht_local_init (copy, &local->loc, NULL, 0);
+    copy_local = dht_local_init(copy, &local->loc, NULL, 0);
 
-       if (!copy_local)
-               goto out;
+    if (!copy_local)
+        goto out;
 
-        stbuf = local->stbuf;
-        subvol = local->link_subvol;
+    stbuf = local->stbuf;
+    subvol = local->link_subvol;
 
-        copy->local = copy_local;
+    copy->local = copy_local;
 
-        FRAME_SU_DO (copy, dht_local_t);
+    FRAME_SU_DO(copy, dht_local_t);
 
-        STACK_WIND (copy, dht_linkfile_setattr_cbk, subvol,
-                    subvol->fops->setattr, &copy_local->loc,
-                    &stbuf, (GF_SET_ATTR_UID | GF_SET_ATTR_GID), xattr);
-        ret = 0;
+    STACK_WIND(copy, dht_linkfile_setattr_cbk, subvol, subvol->fops->setattr,
+               &copy_local->loc, &stbuf, (GF_SET_ATTR_UID | GF_SET_ATTR_GID),
+               xattr);
+    ret = 0;
 out:
-        if ((ret < 0) && (copy))
-                DHT_STACK_DESTROY (copy);
+    if ((ret < 0) && (copy))
+        DHT_STACK_DESTROY(copy);
 
-        if (xattr)
-                dict_unref (xattr);
+    if (xattr)
+        dict_unref(xattr);
 
-        return ret;
+    return ret;
 }
diff --git a/xlators/cluster/dht/src/dht-lock.c b/xlators/cluster/dht/src/dht-lock.c
index 3f389eafa75..f9bac4f97c8 100644
--- a/xlators/cluster/dht/src/dht-lock.c
+++ b/xlators/cluster/dht/src/dht-lock.c
@@ -11,1252 +11,1265 @@
 #include "dht-lock.h"
 
 static char *
-dht_lock_asprintf (dht_lock_t *lock)
+dht_lock_asprintf(dht_lock_t *lock)
 {
-        char *lk_buf                = NULL;
-        char gfid[GF_UUID_BUF_SIZE] = {0, };
+    char *lk_buf = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {
+        0,
+    };
 
-        if (lock == NULL)
-                goto out;
+    if (lock == NULL)
+        goto out;
 
-        uuid_utoa_r (lock->loc.gfid, gfid);
+    uuid_utoa_r(lock->loc.gfid, gfid);
 
-        gf_asprintf (&lk_buf, "%s:%s", lock->xl->name, gfid);
+    gf_asprintf(&lk_buf, "%s:%s", lock->xl->name, gfid);
 
 out:
-        return lk_buf;
+    return lk_buf;
 }
 
 static void
-dht_log_lk_array (char *name, gf_loglevel_t log_level, dht_lock_t **lk_array,
-                  int count)
+dht_log_lk_array(char *name, gf_loglevel_t log_level, dht_lock_t **lk_array,
+                 int count)
 {
-        int   i      = 0;
-        char *lk_buf = NULL;
+    int i = 0;
+    char *lk_buf = NULL;
 
-        if ((lk_array == NULL) || (count == 0))
-                goto out;
+    if ((lk_array == NULL) || (count == 0))
+        goto out;
 
-        for (i = 0; i < count; i++) {
-                lk_buf = dht_lock_asprintf (lk_array[i]);
-                if (!lk_buf)
-                        goto out;
+    for (i = 0; i < count; i++) {
+        lk_buf = dht_lock_asprintf(lk_array[i]);
+        if (!lk_buf)
+            goto out;
 
-                gf_msg (name, log_level, 0, DHT_MSG_LK_ARRAY_INFO,
-                        "%d. %s", i, lk_buf);
-                GF_FREE (lk_buf);
-        }
+        gf_msg(name, log_level, 0, DHT_MSG_LK_ARRAY_INFO, "%d. %s", i, lk_buf);
+        GF_FREE(lk_buf);
+    }
 
 out:
-        return;
+    return;
 }
 
 static void
-dht_lock_stack_destroy (call_frame_t *lock_frame, dht_lock_type_t lk)
+dht_lock_stack_destroy(call_frame_t *lock_frame, dht_lock_type_t lk)
 {
-        dht_local_t *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = lock_frame->local;
+    local = lock_frame->local;
 
-        if (lk == DHT_INODELK) {
-                local->lock[0].layout.my_layout.locks = NULL;
-                local->lock[0].layout.my_layout.lk_count = 0;
-        } else {
-                local->lock[0].ns.directory_ns.locks = NULL;
-                local->lock[0].ns.directory_ns.lk_count = 0;
-        }
+    if (lk == DHT_INODELK) {
+        local->lock[0].layout.my_layout.locks = NULL;
+        local->lock[0].layout.my_layout.lk_count = 0;
+    } else {
+        local->lock[0].ns.directory_ns.locks = NULL;
+        local->lock[0].ns.directory_ns.lk_count = 0;
+    }
 
-        DHT_STACK_DESTROY (lock_frame);
-        return;
+    DHT_STACK_DESTROY(lock_frame);
+    return;
 }
 
 static void
-dht_lock_free (dht_lock_t *lock)
+dht_lock_free(dht_lock_t *lock)
 {
-        if (lock == NULL)
-                goto out;
+    if (lock == NULL)
+        goto out;
 
-        loc_wipe (&lock->loc);
-        GF_FREE (lock->domain);
-        GF_FREE (lock->basename);
-        mem_put (lock);
+    loc_wipe(&lock->loc);
+    GF_FREE(lock->domain);
+    GF_FREE(lock->basename);
+    mem_put(lock);
 
 out:
-        return;
+    return;
 }
 
 static void
-dht_set_lkowner (dht_lock_t **lk_array, int count, gf_lkowner_t *lkowner)
+dht_set_lkowner(dht_lock_t **lk_array, int count, gf_lkowner_t *lkowner)
 {
-        int i = 0;
+    int i = 0;
 
-        if (!lk_array || !lkowner)
-                goto out;
+    if (!lk_array || !lkowner)
+        goto out;
 
-        for (i = 0; i < count; i++) {
-                lk_array[i]->lk_owner = *lkowner;
-        }
+    for (i = 0; i < count; i++) {
+        lk_array[i]->lk_owner = *lkowner;
+    }
 
 out:
-        return;
+    return;
 }
 
 static int
-dht_lock_request_cmp (const void *val1, const void *val2)
+dht_lock_request_cmp(const void *val1, const void *val2)
 {
-        dht_lock_t *lock1 = NULL;
-        dht_lock_t *lock2 = NULL;
-        int         ret   = -1;
+    dht_lock_t *lock1 = NULL;
+    dht_lock_t *lock2 = NULL;
+    int ret = -1;
 
-        lock1 = *(dht_lock_t **)val1;
-        lock2 = *(dht_lock_t **)val2;
+    lock1 = *(dht_lock_t **)val1;
+    lock2 = *(dht_lock_t **)val2;
 
-        GF_VALIDATE_OR_GOTO ("dht-locks", lock1, out);
-        GF_VALIDATE_OR_GOTO ("dht-locks", lock2, out);
+    GF_VALIDATE_OR_GOTO("dht-locks", lock1, out);
+    GF_VALIDATE_OR_GOTO("dht-locks", lock2, out);
 
-        ret = strcmp (lock1->xl->name, lock2->xl->name);
+    ret = strcmp(lock1->xl->name, lock2->xl->name);
 
-        if (ret == 0) {
-                ret = gf_uuid_compare (lock1->loc.gfid, lock2->loc.gfid);
-        }
+    if (ret == 0) {
+        ret = gf_uuid_compare(lock1->loc.gfid, lock2->loc.gfid);
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
 static int
-dht_lock_order_requests (dht_lock_t **locks, int count)
+dht_lock_order_requests(dht_lock_t **locks, int count)
 {
-        int        ret     = -1;
+    int ret = -1;
 
-        if (!locks || !count)
-                goto out;
+    if (!locks || !count)
+        goto out;
 
-        qsort (locks, count, sizeof (*locks), dht_lock_request_cmp);
-        ret = 0;
+    qsort(locks, count, sizeof(*locks), dht_lock_request_cmp);
+    ret = 0;
 
 out:
-        return ret;
+    return ret;
 }
 
 void
-dht_lock_array_free (dht_lock_t **lk_array, int count)
+dht_lock_array_free(dht_lock_t **lk_array, int count)
 {
-        int            i       = 0;
-        dht_lock_t    *lock    = NULL;
+    int i = 0;
+    dht_lock_t *lock = NULL;
 
-        if (lk_array == NULL)
-                goto out;
+    if (lk_array == NULL)
+        goto out;
 
-        for (i = 0; i < count; i++) {
-                lock = lk_array[i];
-                lk_array[i] = NULL;
-                dht_lock_free (lock);
-        }
+    for (i = 0; i < count; i++) {
+        lock = lk_array[i];
+        lk_array[i] = NULL;
+        dht_lock_free(lock);
+    }
 
 out:
-        return;
+    return;
 }
 
 int32_t
-dht_lock_count (dht_lock_t **lk_array, int lk_count)
+dht_lock_count(dht_lock_t **lk_array, int lk_count)
 {
-        int i = 0, locked = 0;
+    int i = 0, locked = 0;
 
-        if ((lk_array == NULL) || (lk_count == 0))
-                goto out;
+    if ((lk_array == NULL) || (lk_count == 0))
+        goto out;
 
-        for (i = 0; i < lk_count; i++) {
-                if (lk_array[i]->locked)
-                        locked++;
-        }
+    for (i = 0; i < lk_count; i++) {
+        if (lk_array[i]->locked)
+            locked++;
+    }
 out:
-        return locked;
+    return locked;
 }
 
 static call_frame_t *
-dht_lock_frame (call_frame_t *parent_frame)
+dht_lock_frame(call_frame_t *parent_frame)
 {
-        call_frame_t *lock_frame = NULL;
+    call_frame_t *lock_frame = NULL;
 
-        lock_frame = copy_frame (parent_frame);
-        if (lock_frame == NULL)
-                goto out;
+    lock_frame = copy_frame(parent_frame);
+    if (lock_frame == NULL)
+        goto out;
 
-        set_lk_owner_from_ptr (&lock_frame->root->lk_owner, parent_frame->root);
+    set_lk_owner_from_ptr(&lock_frame->root->lk_owner, parent_frame->root);
 
 out:
-        return lock_frame;
+    return lock_frame;
 }
 
 dht_lock_t *
-dht_lock_new (xlator_t *this, xlator_t *xl, loc_t *loc, short type,
-              const char *domain, const char *basename,
-              dht_reaction_type_t do_on_failure)
+dht_lock_new(xlator_t *this, xlator_t *xl, loc_t *loc, short type,
+             const char *domain, const char *basename,
+             dht_reaction_type_t do_on_failure)
 {
-        dht_conf_t *conf = NULL;
-        dht_lock_t *lock = NULL;
-
-        conf = this->private;
-
-        lock = mem_get0 (conf->lock_pool);
-        if (lock == NULL)
-                goto out;
-
-        lock->xl = xl;
-        lock->type = type;
-        lock->do_on_failure = do_on_failure;
-
-        lock->domain = gf_strdup (domain);
-        if (lock->domain == NULL) {
-                dht_lock_free (lock);
-                lock = NULL;
-                goto out;
+    dht_conf_t *conf = NULL;
+    dht_lock_t *lock = NULL;
+
+    conf = this->private;
+
+    lock = mem_get0(conf->lock_pool);
+    if (lock == NULL)
+        goto out;
+
+    lock->xl = xl;
+    lock->type = type;
+    lock->do_on_failure = do_on_failure;
+
+    lock->domain = gf_strdup(domain);
+    if (lock->domain == NULL) {
+        dht_lock_free(lock);
+        lock = NULL;
+        goto out;
+    }
+
+    if (basename) {
+        lock->basename = gf_strdup(basename);
+        if (lock->basename == NULL) {
+            dht_lock_free(lock);
+            lock = NULL;
+            goto out;
         }
-
-        if (basename) {
-                lock->basename = gf_strdup (basename);
-                if (lock->basename == NULL) {
-                        dht_lock_free (lock);
-                        lock = NULL;
-                        goto out;
-                }
-        }
-
-        /* Fill only inode and gfid.
-           posix and protocol/server give preference to pargfid/basename over
-           gfid/inode for resolution if all the three parameters of loc_t are
-           present. I want to avoid the following hypothetical situation:
-
-           1. rebalance did a lookup on a dentry and got a gfid.
-           2. rebalance acquires lock on loc_t which was filled with gfid and
-              path (pargfid/bname) from step 1.
-           3. somebody deleted and recreated the same file
-           4. rename on the same path acquires lock on loc_t which now points
-              to a different inode (and hence gets the lock).
-           5. rebalance continues to migrate file (note that not all fops done
-              by rebalance during migration are inode/gfid based Eg., unlink)
-           6. rename continues.
-        */
-        lock->loc.inode = inode_ref (loc->inode);
-        loc_gfid (loc, lock->loc.gfid);
+    }
+
+    /* Fill only inode and gfid.
+       posix and protocol/server give preference to pargfid/basename over
+       gfid/inode for resolution if all the three parameters of loc_t are
+       present. I want to avoid the following hypothetical situation:
+
+       1. rebalance did a lookup on a dentry and got a gfid.
+       2. rebalance acquires lock on loc_t which was filled with gfid and
+          path (pargfid/bname) from step 1.
+       3. somebody deleted and recreated the same file
+       4. rename on the same path acquires lock on loc_t which now points
+          to a different inode (and hence gets the lock).
+       5. rebalance continues to migrate file (note that not all fops done
+          by rebalance during migration are inode/gfid based Eg., unlink)
+       6. rename continues.
+    */
+    lock->loc.inode = inode_ref(loc->inode);
+    loc_gfid(loc, lock->loc.gfid);
 
 out:
-        return lock;
+    return lock;
 }
 
 static int
-dht_local_entrylk_init (call_frame_t *frame, dht_lock_t **lk_array,
-                     int lk_count, fop_entrylk_cbk_t entrylk_cbk)
+dht_local_entrylk_init(call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
+                       fop_entrylk_cbk_t entrylk_cbk)
 {
-        int          ret   = -1;
-        dht_local_t *local = NULL;
+    int ret = -1;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (local == NULL) {
-                local = dht_local_init (frame, NULL, NULL, 0);
-        }
+    if (local == NULL) {
+        local = dht_local_init(frame, NULL, NULL, 0);
+    }
 
-        if (local == NULL) {
-                goto out;
-        }
+    if (local == NULL) {
+        goto out;
+    }
 
-        local->lock[0].ns.directory_ns.entrylk_cbk = entrylk_cbk;
-        local->lock[0].ns.directory_ns.locks = lk_array;
-        local->lock[0].ns.directory_ns.lk_count = lk_count;
+    local->lock[0].ns.directory_ns.entrylk_cbk = entrylk_cbk;
+    local->lock[0].ns.directory_ns.locks = lk_array;
+    local->lock[0].ns.directory_ns.lk_count = lk_count;
 
-        ret = dht_lock_order_requests (local->lock[0].ns.directory_ns.locks,
-                                       local->lock[0].ns.directory_ns.lk_count);
-        if (ret < 0)
-                goto out;
+    ret = dht_lock_order_requests(local->lock[0].ns.directory_ns.locks,
+                                  local->lock[0].ns.directory_ns.lk_count);
+    if (ret < 0)
+        goto out;
 
-        ret = 0;
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
 static void
-dht_entrylk_done (call_frame_t *lock_frame)
+dht_entrylk_done(call_frame_t *lock_frame)
 {
-        fop_entrylk_cbk_t  entrylk_cbk = NULL;
-        call_frame_t      *main_frame  = NULL;
-        dht_local_t       *local       = NULL;
+    fop_entrylk_cbk_t entrylk_cbk = NULL;
+    call_frame_t *main_frame = NULL;
+    dht_local_t *local = NULL;
 
-        local = lock_frame->local;
-        main_frame = local->main_frame;
+    local = lock_frame->local;
+    main_frame = local->main_frame;
 
-        local->lock[0].ns.directory_ns.locks = NULL;
-        local->lock[0].ns.directory_ns.lk_count = 0;
+    local->lock[0].ns.directory_ns.locks = NULL;
+    local->lock[0].ns.directory_ns.lk_count = 0;
 
-        entrylk_cbk = local->lock[0].ns.directory_ns.entrylk_cbk;
-        local->lock[0].ns.directory_ns.entrylk_cbk = NULL;
+    entrylk_cbk = local->lock[0].ns.directory_ns.entrylk_cbk;
+    local->lock[0].ns.directory_ns.entrylk_cbk = NULL;
 
-        entrylk_cbk (main_frame, NULL, main_frame->this,
-                     local->lock[0].ns.directory_ns.op_ret,
-                     local->lock[0].ns.directory_ns.op_errno, NULL);
+    entrylk_cbk(main_frame, NULL, main_frame->this,
+                local->lock[0].ns.directory_ns.op_ret,
+                local->lock[0].ns.directory_ns.op_errno, NULL);
 
-        dht_lock_stack_destroy (lock_frame, DHT_ENTRYLK);
-        return;
+    dht_lock_stack_destroy(lock_frame, DHT_ENTRYLK);
+    return;
 }
 
 static int32_t
-dht_unlock_entrylk_done (call_frame_t *frame, void *cookie, xlator_t *this,
-                          int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_unlock_entrylk_done(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                   = NULL;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        gf_uuid_unparse (local->lock[0].ns.directory_ns.locks[0]->loc.inode->gfid, gfid);
-
-        if (op_ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "unlock failed on gfid: %s, stale lock might be left "
-                        "in DHT_LAYOUT_HEAL_DOMAIN", gfid);
-        }
-
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    dht_local_t *local = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+    gf_uuid_unparse(local->lock[0].ns.directory_ns.locks[0]->loc.inode->gfid,
+                    gfid);
+
+    if (op_ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "unlock failed on gfid: %s, stale lock might be left "
+               "in DHT_LAYOUT_HEAL_DOMAIN",
+               gfid);
+    }
+
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
 static int32_t
-dht_unlock_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_unlock_entrylk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                  = NULL;
-        int          lk_index               = 0, call_cnt = 0;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_local_t *local = NULL;
+    int lk_index = 0, call_cnt = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        lk_index = (long) cookie;
+    lk_index = (long)cookie;
 
-        local = frame->local;
+    local = frame->local;
 
-        uuid_utoa_r (local->lock[0].ns.directory_ns.locks[lk_index]->loc.gfid, gfid);
+    uuid_utoa_r(local->lock[0].ns.directory_ns.locks[lk_index]->loc.gfid, gfid);
 
-        if (op_ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_UNLOCKING_FAILED,
-                        "unlocking failed on %s:%s",
-                        local->lock[0].ns.directory_ns.locks[lk_index]->xl->name,
-                        gfid);
-        } else {
-                local->lock[0].ns.directory_ns.locks[lk_index]->locked = 0;
-        }
+    if (op_ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_UNLOCKING_FAILED,
+               "unlocking failed on %s:%s",
+               local->lock[0].ns.directory_ns.locks[lk_index]->xl->name, gfid);
+    } else {
+        local->lock[0].ns.directory_ns.locks[lk_index]->locked = 0;
+    }
 
-        call_cnt = dht_frame_return (frame);
-        if (is_last_call (call_cnt)) {
-                dht_entrylk_done (frame);
-        }
+    call_cnt = dht_frame_return(frame);
+    if (is_last_call(call_cnt)) {
+        dht_entrylk_done(frame);
+    }
 
-        return 0;
+    return 0;
 }
 
 static int32_t
-dht_unlock_entrylk (call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
-                     fop_entrylk_cbk_t entrylk_cbk)
+dht_unlock_entrylk(call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
+                   fop_entrylk_cbk_t entrylk_cbk)
 {
-        dht_local_t     *local      = NULL;
-        int              ret        = -1 , i = 0;
-        call_frame_t    *lock_frame = NULL;
-        int              call_cnt   = 0;
-
-        GF_VALIDATE_OR_GOTO ("dht-locks", frame, done);
-        GF_VALIDATE_OR_GOTO (frame->this->name, lk_array, done);
-        GF_VALIDATE_OR_GOTO (frame->this->name, entrylk_cbk, done);
-
-        call_cnt = dht_lock_count (lk_array, lk_count);
-        if (call_cnt == 0) {
-                ret = 0;
-                goto done;
-        }
-
-        lock_frame = dht_lock_frame (frame);
-        if (lock_frame == NULL) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_UNLOCKING_FAILED,
-                        "cannot allocate a frame, not unlocking following "
-                        "entrylks:");
-
-                dht_log_lk_array (frame->this->name, GF_LOG_WARNING, lk_array,
-                                  lk_count);
-                goto done;
-        }
-
-        ret = dht_local_entrylk_init (lock_frame, lk_array, lk_count,
-                                      entrylk_cbk);
-        if (ret < 0) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_UNLOCKING_FAILED,
-                        "storing locks in local failed, not unlocking "
-                        "following entrylks:");
-
-                dht_log_lk_array (frame->this->name, GF_LOG_WARNING, lk_array,
-                                  lk_count);
-
-                goto done;
-        }
+    dht_local_t *local = NULL;
+    int ret = -1, i = 0;
+    call_frame_t *lock_frame = NULL;
+    int call_cnt = 0;
 
-        local = lock_frame->local;
-        local->main_frame = frame;
-        local->call_cnt = call_cnt;
-
-        for (i = 0; i < local->lock[0].ns.directory_ns.lk_count; i++) {
-                if (!local->lock[0].ns.directory_ns.locks[i]->locked)
-                        continue;
-
-                lock_frame->root->lk_owner = local->lock[0].ns.directory_ns.locks[i]->lk_owner;
-                STACK_WIND_COOKIE (lock_frame, dht_unlock_entrylk_cbk,
-                                   (void *)(long)i,
-                                   local->lock[0].ns.directory_ns.locks[i]->xl,
-                                   local->lock[0].ns.directory_ns.locks[i]->xl->fops->entrylk,
-                                   local->lock[0].ns.directory_ns.locks[i]->domain,
-                                   &local->lock[0].ns.directory_ns.locks[i]->loc,
-                                   local->lock[0].ns.directory_ns.locks[i]->basename,
-                                   ENTRYLK_UNLOCK, ENTRYLK_WRLCK, NULL);
-                if (!--call_cnt)
-                        break;
-        }
+    GF_VALIDATE_OR_GOTO("dht-locks", frame, done);
+    GF_VALIDATE_OR_GOTO(frame->this->name, lk_array, done);
+    GF_VALIDATE_OR_GOTO(frame->this->name, entrylk_cbk, done);
 
-        return 0;
+    call_cnt = dht_lock_count(lk_array, lk_count);
+    if (call_cnt == 0) {
+        ret = 0;
+        goto done;
+    }
+
+    lock_frame = dht_lock_frame(frame);
+    if (lock_frame == NULL) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+               "cannot allocate a frame, not unlocking following "
+               "entrylks:");
+
+        dht_log_lk_array(frame->this->name, GF_LOG_WARNING, lk_array, lk_count);
+        goto done;
+    }
+
+    ret = dht_local_entrylk_init(lock_frame, lk_array, lk_count, entrylk_cbk);
+    if (ret < 0) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+               "storing locks in local failed, not unlocking "
+               "following entrylks:");
+
+        dht_log_lk_array(frame->this->name, GF_LOG_WARNING, lk_array, lk_count);
+
+        goto done;
+    }
+
+    local = lock_frame->local;
+    local->main_frame = frame;
+    local->call_cnt = call_cnt;
+
+    for (i = 0; i < local->lock[0].ns.directory_ns.lk_count; i++) {
+        if (!local->lock[0].ns.directory_ns.locks[i]->locked)
+            continue;
+
+        lock_frame->root
+            ->lk_owner = local->lock[0].ns.directory_ns.locks[i]->lk_owner;
+        STACK_WIND_COOKIE(
+            lock_frame, dht_unlock_entrylk_cbk, (void *)(long)i,
+            local->lock[0].ns.directory_ns.locks[i]->xl,
+            local->lock[0].ns.directory_ns.locks[i]->xl->fops->entrylk,
+            local->lock[0].ns.directory_ns.locks[i]->domain,
+            &local->lock[0].ns.directory_ns.locks[i]->loc,
+            local->lock[0].ns.directory_ns.locks[i]->basename, ENTRYLK_UNLOCK,
+            ENTRYLK_WRLCK, NULL);
+        if (!--call_cnt)
+            break;
+    }
+
+    return 0;
 
 done:
-        if (lock_frame)
-                dht_lock_stack_destroy (lock_frame, DHT_ENTRYLK);
+    if (lock_frame)
+        dht_lock_stack_destroy(lock_frame, DHT_ENTRYLK);
 
-        /* no locks acquired, invoke entrylk_cbk */
-        if (ret == 0)
-                entrylk_cbk (frame, NULL, frame->this, 0, 0, NULL);
+    /* no locks acquired, invoke entrylk_cbk */
+    if (ret == 0)
+        entrylk_cbk(frame, NULL, frame->this, 0, 0, NULL);
 
-        return ret;
+    return ret;
 }
 
 int32_t
-dht_unlock_entrylk_wrapper (call_frame_t *frame, dht_elock_wrap_t *entrylk)
+dht_unlock_entrylk_wrapper(call_frame_t *frame, dht_elock_wrap_t *entrylk)
 {
-        dht_local_t  *local                   = NULL, *lock_local = NULL;
-        call_frame_t *lock_frame              = NULL;
-        char          pgfid[GF_UUID_BUF_SIZE] = {0};
-        int           ret                     = 0;
-
-        local = frame->local;
-
-        if (!entrylk || !entrylk->locks)
-                goto out;
-
-        gf_uuid_unparse (local->loc.parent->gfid, pgfid);
-
-        lock_frame = copy_frame (frame);
-        if (lock_frame == NULL) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "copy frame failed", pgfid, local->loc.name,
-                        local->loc.path);
-                goto done;
-        }
-
-        lock_local = dht_local_init (lock_frame, NULL, NULL, 0);
-        if (lock_local == NULL) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "local creation failed", pgfid, local->loc.name,
-                        local->loc.path);
-                goto done;
-        }
-
-        lock_frame->local = lock_local;
-
-        lock_local->lock[0].ns.directory_ns.locks = entrylk->locks;
-        lock_local->lock[0].ns.directory_ns.lk_count = entrylk->lk_count;
-        entrylk->locks = NULL;
-        entrylk->lk_count = 0;
-
-        ret = dht_unlock_entrylk (lock_frame,
-                                  lock_local->lock[0].ns.directory_ns.locks,
-                                  lock_local->lock[0].ns.directory_ns.lk_count,
-                                  dht_unlock_entrylk_done);
-        if (ret)
-                goto done;
-
-        lock_frame = NULL;
+    dht_local_t *local = NULL, *lock_local = NULL;
+    call_frame_t *lock_frame = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    int ret = 0;
+
+    local = frame->local;
+
+    if (!entrylk || !entrylk->locks)
+        goto out;
+
+    gf_uuid_unparse(local->loc.parent->gfid, pgfid);
+
+    lock_frame = copy_frame(frame);
+    if (lock_frame == NULL) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, ENOMEM,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "copy frame failed",
+               pgfid, local->loc.name, local->loc.path);
+        goto done;
+    }
+
+    lock_local = dht_local_init(lock_frame, NULL, NULL, 0);
+    if (lock_local == NULL) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, ENOMEM,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "local creation failed",
+               pgfid, local->loc.name, local->loc.path);
+        goto done;
+    }
+
+    lock_frame->local = lock_local;
+
+    lock_local->lock[0].ns.directory_ns.locks = entrylk->locks;
+    lock_local->lock[0].ns.directory_ns.lk_count = entrylk->lk_count;
+    entrylk->locks = NULL;
+    entrylk->lk_count = 0;
+
+    ret = dht_unlock_entrylk(
+        lock_frame, lock_local->lock[0].ns.directory_ns.locks,
+        lock_local->lock[0].ns.directory_ns.lk_count, dht_unlock_entrylk_done);
+    if (ret)
+        goto done;
+
+    lock_frame = NULL;
 
 done:
-        if (lock_frame != NULL) {
-                DHT_STACK_DESTROY (lock_frame);
-        }
+    if (lock_frame != NULL) {
+        DHT_STACK_DESTROY(lock_frame);
+    }
 
 out:
-        return 0;
+    return 0;
 }
 
 static int
-dht_entrylk_cleanup_cbk (call_frame_t *frame, void *cookie,
-                         xlator_t *this, int32_t op_ret, int32_t op_errno,
-                         dict_t *xdata)
+dht_entrylk_cleanup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_entrylk_done (frame);
-        return 0;
+    dht_entrylk_done(frame);
+    return 0;
 }
 
 static void
-dht_entrylk_cleanup (call_frame_t *lock_frame)
+dht_entrylk_cleanup(call_frame_t *lock_frame)
 {
-        dht_lock_t  **lk_array = NULL;
-        int           lk_count = 0, lk_acquired = 0;
-        dht_local_t  *local    = NULL;
+    dht_lock_t **lk_array = NULL;
+    int lk_count = 0, lk_acquired = 0;
+    dht_local_t *local = NULL;
 
-        local = lock_frame->local;
+    local = lock_frame->local;
 
-        lk_array = local->lock[0].ns.directory_ns.locks;
-        lk_count = local->lock[0].ns.directory_ns.lk_count;
+    lk_array = local->lock[0].ns.directory_ns.locks;
+    lk_count = local->lock[0].ns.directory_ns.lk_count;
 
-        lk_acquired = dht_lock_count (lk_array, lk_count);
-        if (lk_acquired != 0) {
-                dht_unlock_entrylk (lock_frame, lk_array, lk_count,
-                                     dht_entrylk_cleanup_cbk);
-        } else {
-                dht_entrylk_done (lock_frame);
-        }
+    lk_acquired = dht_lock_count(lk_array, lk_count);
+    if (lk_acquired != 0) {
+        dht_unlock_entrylk(lock_frame, lk_array, lk_count,
+                           dht_entrylk_cleanup_cbk);
+    } else {
+        dht_entrylk_done(lock_frame);
+    }
 
-        return;
+    return;
 }
 
-
 static int32_t
-dht_blocking_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                          int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_blocking_entrylk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                         int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        int          lk_index = 0;
-        int          i        = 0;
-        dht_local_t *local    = NULL;
-
-        lk_index = (long) cookie;
-
-        local = frame->local;
-        if (op_ret == 0) {
-                local->lock[0].ns.directory_ns.locks[lk_index]->locked = _gf_true;
-        } else {
-                switch (op_errno) {
-                case ESTALE:
-                case ENOENT:
-                        if (local->lock[0].ns.directory_ns.locks[lk_index]->do_on_failure != IGNORE_ENOENT_ESTALE) {
-                                local->lock[0].ns.directory_ns.op_ret = -1;
-                                local->lock[0].ns.directory_ns.op_errno = op_errno;
-                                goto cleanup;
-                        }
-                        break;
-                default:
-                        local->lock[0].ns.directory_ns.op_ret = -1;
-                        local->lock[0].ns.directory_ns.op_errno = op_errno;
-                        goto cleanup;
+    int lk_index = 0;
+    int i = 0;
+    dht_local_t *local = NULL;
+
+    lk_index = (long)cookie;
+
+    local = frame->local;
+    if (op_ret == 0) {
+        local->lock[0].ns.directory_ns.locks[lk_index]->locked = _gf_true;
+    } else {
+        switch (op_errno) {
+            case ESTALE:
+            case ENOENT:
+                if (local->lock[0]
+                        .ns.directory_ns.locks[lk_index]
+                        ->do_on_failure != IGNORE_ENOENT_ESTALE) {
+                    local->lock[0].ns.directory_ns.op_ret = -1;
+                    local->lock[0].ns.directory_ns.op_errno = op_errno;
+                    goto cleanup;
                 }
+                break;
+            default:
+                local->lock[0].ns.directory_ns.op_ret = -1;
+                local->lock[0].ns.directory_ns.op_errno = op_errno;
+                goto cleanup;
         }
+    }
 
-        if (lk_index == (local->lock[0].ns.directory_ns.lk_count - 1)) {
-                for (i = 0; (i < local->lock[0].ns.directory_ns.lk_count) &&
-                     (!local->lock[0].ns.directory_ns.locks[i]->locked); i++)
-                        ;
+    if (lk_index == (local->lock[0].ns.directory_ns.lk_count - 1)) {
+        for (i = 0; (i < local->lock[0].ns.directory_ns.lk_count) &&
+                    (!local->lock[0].ns.directory_ns.locks[i]->locked);
+             i++)
+            ;
 
-                if (i == local->lock[0].ns.directory_ns.lk_count) {
-                        local->lock[0].ns.directory_ns.op_ret = -1;
-                        local->lock[0].ns.directory_ns.op_errno = op_errno;
-                }
-
-                dht_entrylk_done (frame);
-        } else {
-                dht_blocking_entrylk_rec (frame, ++lk_index);
+        if (i == local->lock[0].ns.directory_ns.lk_count) {
+            local->lock[0].ns.directory_ns.op_ret = -1;
+            local->lock[0].ns.directory_ns.op_errno = op_errno;
         }
 
-        return 0;
+        dht_entrylk_done(frame);
+    } else {
+        dht_blocking_entrylk_rec(frame, ++lk_index);
+    }
+
+    return 0;
 
 cleanup:
-        dht_entrylk_cleanup (frame);
+    dht_entrylk_cleanup(frame);
 
-        return 0;
+    return 0;
 }
 
 void
-dht_blocking_entrylk_rec (call_frame_t *frame, int i)
+dht_blocking_entrylk_rec(call_frame_t *frame, int i)
 {
-        dht_local_t     *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        STACK_WIND_COOKIE (frame, dht_blocking_entrylk_cbk,
-                           (void *) (long) i,
-                           local->lock[0].ns.directory_ns.locks[i]->xl,
-                           local->lock[0].ns.directory_ns.locks[i]->xl->fops->entrylk,
-                           local->lock[0].ns.directory_ns.locks[i]->domain,
-                           &local->lock[0].ns.directory_ns.locks[i]->loc,
-                           local->lock[0].ns.directory_ns.locks[i]->basename,
-                           ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL);
+    STACK_WIND_COOKIE(
+        frame, dht_blocking_entrylk_cbk, (void *)(long)i,
+        local->lock[0].ns.directory_ns.locks[i]->xl,
+        local->lock[0].ns.directory_ns.locks[i]->xl->fops->entrylk,
+        local->lock[0].ns.directory_ns.locks[i]->domain,
+        &local->lock[0].ns.directory_ns.locks[i]->loc,
+        local->lock[0].ns.directory_ns.locks[i]->basename, ENTRYLK_LOCK,
+        ENTRYLK_WRLCK, NULL);
 
-        return;
+    return;
 }
 
 int
-dht_blocking_entrylk (call_frame_t *frame, dht_lock_t **lk_array,
-                      int lk_count, fop_entrylk_cbk_t entrylk_cbk)
+dht_blocking_entrylk(call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
+                     fop_entrylk_cbk_t entrylk_cbk)
 {
-        int           ret        = -1;
-        call_frame_t *lock_frame = NULL;
-        dht_local_t  *local      = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht-locks", frame, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, lk_array, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, entrylk_cbk, out);
-
-        lock_frame = dht_lock_frame (frame);
-        if (lock_frame == NULL)
-                goto out;
-
-        ret = dht_local_entrylk_init (lock_frame, lk_array, lk_count,
-                                      entrylk_cbk);
-        if (ret < 0) {
-                goto out;
-        }
+    int ret = -1;
+    call_frame_t *lock_frame = NULL;
+    dht_local_t *local = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht-locks", frame, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, lk_array, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, entrylk_cbk, out);
 
-        dht_set_lkowner (lk_array, lk_count, &lock_frame->root->lk_owner);
+    lock_frame = dht_lock_frame(frame);
+    if (lock_frame == NULL)
+        goto out;
 
-        local = lock_frame->local;
-        local->main_frame = frame;
+    ret = dht_local_entrylk_init(lock_frame, lk_array, lk_count, entrylk_cbk);
+    if (ret < 0) {
+        goto out;
+    }
 
-        dht_blocking_entrylk_rec (lock_frame, 0);
+    dht_set_lkowner(lk_array, lk_count, &lock_frame->root->lk_owner);
 
-        return 0;
+    local = lock_frame->local;
+    local->main_frame = frame;
+
+    dht_blocking_entrylk_rec(lock_frame, 0);
+
+    return 0;
 out:
-        if (lock_frame)
-                dht_lock_stack_destroy (lock_frame, DHT_ENTRYLK);
+    if (lock_frame)
+        dht_lock_stack_destroy(lock_frame, DHT_ENTRYLK);
 
-        return -1;
+    return -1;
 }
 
 static int
-dht_local_inodelk_init (call_frame_t *frame, dht_lock_t **lk_array,
-                     int lk_count, fop_inodelk_cbk_t inodelk_cbk)
+dht_local_inodelk_init(call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
+                       fop_inodelk_cbk_t inodelk_cbk)
 {
-        int          ret   = -1;
-        dht_local_t *local = NULL;
+    int ret = -1;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (local == NULL) {
-                local = dht_local_init (frame, NULL, NULL, 0);
-        }
+    if (local == NULL) {
+        local = dht_local_init(frame, NULL, NULL, 0);
+    }
 
-        if (local == NULL) {
-                goto out;
-        }
+    if (local == NULL) {
+        goto out;
+    }
 
-        local->lock[0].layout.my_layout.inodelk_cbk = inodelk_cbk;
-        local->lock[0].layout.my_layout.locks = lk_array;
-        local->lock[0].layout.my_layout.lk_count = lk_count;
+    local->lock[0].layout.my_layout.inodelk_cbk = inodelk_cbk;
+    local->lock[0].layout.my_layout.locks = lk_array;
+    local->lock[0].layout.my_layout.lk_count = lk_count;
 
-        ret = dht_lock_order_requests (local->lock[0].layout.my_layout.locks,
-                                       local->lock[0].layout.my_layout.lk_count);
-        if (ret < 0)
-                goto out;
+    ret = dht_lock_order_requests(local->lock[0].layout.my_layout.locks,
+                                  local->lock[0].layout.my_layout.lk_count);
+    if (ret < 0)
+        goto out;
 
-        ret = 0;
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
 static void
-dht_inodelk_done (call_frame_t *lock_frame)
+dht_inodelk_done(call_frame_t *lock_frame)
 {
-        fop_inodelk_cbk_t  inodelk_cbk = NULL;
-        call_frame_t      *main_frame  = NULL;
-        dht_local_t       *local       = NULL;
+    fop_inodelk_cbk_t inodelk_cbk = NULL;
+    call_frame_t *main_frame = NULL;
+    dht_local_t *local = NULL;
 
-        local = lock_frame->local;
-        main_frame = local->main_frame;
+    local = lock_frame->local;
+    main_frame = local->main_frame;
 
-        local->lock[0].layout.my_layout.locks = NULL;
-        local->lock[0].layout.my_layout.lk_count = 0;
+    local->lock[0].layout.my_layout.locks = NULL;
+    local->lock[0].layout.my_layout.lk_count = 0;
 
-        inodelk_cbk = local->lock[0].layout.my_layout.inodelk_cbk;
-        local->lock[0].layout.my_layout.inodelk_cbk = NULL;
+    inodelk_cbk = local->lock[0].layout.my_layout.inodelk_cbk;
+    local->lock[0].layout.my_layout.inodelk_cbk = NULL;
 
-        inodelk_cbk (main_frame, NULL, main_frame->this,
-                     local->lock[0].layout.my_layout.op_ret,
-                     local->lock[0].layout.my_layout.op_errno, NULL);
+    inodelk_cbk(main_frame, NULL, main_frame->this,
+                local->lock[0].layout.my_layout.op_ret,
+                local->lock[0].layout.my_layout.op_errno, NULL);
 
-        dht_lock_stack_destroy (lock_frame, DHT_INODELK);
-        return;
+    dht_lock_stack_destroy(lock_frame, DHT_INODELK);
+    return;
 }
 
 static int32_t
-dht_unlock_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_unlock_inodelk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                  = NULL;
-        int          lk_index               = 0, call_cnt = 0;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
-
-        lk_index = (long) cookie;
-
-        local = frame->local;
-        if (op_ret < 0) {
-                uuid_utoa_r (local->lock[0].layout.my_layout.locks[lk_index]->loc.gfid,
-                             gfid);
-
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_UNLOCKING_FAILED,
-                        "unlocking failed on %s:%s",
-                        local->lock[0].layout.my_layout.locks[lk_index]->xl->name,
-                        gfid);
-        } else {
-                local->lock[0].layout.my_layout.locks[lk_index]->locked = 0;
-        }
-
-        call_cnt = dht_frame_return (frame);
-        if (is_last_call (call_cnt)) {
-                dht_inodelk_done (frame);
-        }
-
-        return 0;
+    dht_local_t *local = NULL;
+    int lk_index = 0, call_cnt = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    lk_index = (long)cookie;
+
+    local = frame->local;
+    if (op_ret < 0) {
+        uuid_utoa_r(local->lock[0].layout.my_layout.locks[lk_index]->loc.gfid,
+                    gfid);
+
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_UNLOCKING_FAILED,
+               "unlocking failed on %s:%s",
+               local->lock[0].layout.my_layout.locks[lk_index]->xl->name, gfid);
+    } else {
+        local->lock[0].layout.my_layout.locks[lk_index]->locked = 0;
+    }
+
+    call_cnt = dht_frame_return(frame);
+    if (is_last_call(call_cnt)) {
+        dht_inodelk_done(frame);
+    }
+
+    return 0;
 }
 
 static int32_t
-dht_unlock_inodelk_done (call_frame_t *frame, void *cookie, xlator_t *this,
-                          int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_unlock_inodelk_done(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                   = NULL;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        gf_uuid_unparse (local->lock[0].layout.my_layout.locks[0]->loc.inode->gfid, gfid);
-
-        if (op_ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "unlock failed on gfid: %s, stale lock might be left "
-                        "in DHT_LAYOUT_HEAL_DOMAIN", gfid);
-        }
-
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    dht_local_t *local = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+    gf_uuid_unparse(local->lock[0].layout.my_layout.locks[0]->loc.inode->gfid,
+                    gfid);
+
+    if (op_ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "unlock failed on gfid: %s, stale lock might be left "
+               "in DHT_LAYOUT_HEAL_DOMAIN",
+               gfid);
+    }
+
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
 int32_t
-dht_unlock_inodelk (call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
-                     fop_inodelk_cbk_t inodelk_cbk)
+dht_unlock_inodelk(call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
+                   fop_inodelk_cbk_t inodelk_cbk)
 {
-        dht_local_t     *local      = NULL;
-        struct gf_flock  flock      = {0,};
-        int              ret        = -1 , i = 0;
-        call_frame_t    *lock_frame = NULL;
-        int              call_cnt   = 0;
-
-        GF_VALIDATE_OR_GOTO ("dht-locks", frame, done);
-        GF_VALIDATE_OR_GOTO (frame->this->name, lk_array, done);
-        GF_VALIDATE_OR_GOTO (frame->this->name, inodelk_cbk, done);
-
-        call_cnt = dht_lock_count (lk_array, lk_count);
-        if (call_cnt == 0) {
-                ret = 0;
-                goto done;
-        }
-
-        lock_frame = dht_lock_frame (frame);
-        if (lock_frame == NULL) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_UNLOCKING_FAILED,
-                        "cannot allocate a frame, not unlocking following "
-                        "locks:");
-
-                dht_log_lk_array (frame->this->name, GF_LOG_WARNING, lk_array,
-                                  lk_count);
-                goto done;
-        }
-
-        ret = dht_local_inodelk_init (lock_frame, lk_array, lk_count,
-                                      inodelk_cbk);
-        if (ret < 0) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_UNLOCKING_FAILED,
-                        "storing locks in local failed, not unlocking "
-                        "following locks:");
-
-                dht_log_lk_array (frame->this->name, GF_LOG_WARNING, lk_array,
-                                  lk_count);
-
-                goto done;
-        }
-
-        local = lock_frame->local;
-        local->main_frame = frame;
-        local->call_cnt = call_cnt;
-
-        flock.l_type = F_UNLCK;
-
-        for (i = 0; i < local->lock[0].layout.my_layout.lk_count; i++) {
-                if (!local->lock[0].layout.my_layout.locks[i]->locked)
-                        continue;
-
-                lock_frame->root->lk_owner = local->lock[0].layout.my_layout.locks[i]->lk_owner;
-                STACK_WIND_COOKIE (lock_frame, dht_unlock_inodelk_cbk,
-                                   (void *)(long)i,
-                                   local->lock[0].layout.my_layout.locks[i]->xl,
-                                   local->lock[0].layout.my_layout.locks[i]->xl->fops->inodelk,
-                                   local->lock[0].layout.my_layout.locks[i]->domain,
-                                   &local->lock[0].layout.my_layout.locks[i]->loc, F_SETLK,
-                                   &flock, NULL);
-                if (!--call_cnt)
-                        break;
-        }
-
-        return 0;
+    dht_local_t *local = NULL;
+    struct gf_flock flock = {
+        0,
+    };
+    int ret = -1, i = 0;
+    call_frame_t *lock_frame = NULL;
+    int call_cnt = 0;
+
+    GF_VALIDATE_OR_GOTO("dht-locks", frame, done);
+    GF_VALIDATE_OR_GOTO(frame->this->name, lk_array, done);
+    GF_VALIDATE_OR_GOTO(frame->this->name, inodelk_cbk, done);
+
+    call_cnt = dht_lock_count(lk_array, lk_count);
+    if (call_cnt == 0) {
+        ret = 0;
+        goto done;
+    }
+
+    lock_frame = dht_lock_frame(frame);
+    if (lock_frame == NULL) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+               "cannot allocate a frame, not unlocking following "
+               "locks:");
+
+        dht_log_lk_array(frame->this->name, GF_LOG_WARNING, lk_array, lk_count);
+        goto done;
+    }
+
+    ret = dht_local_inodelk_init(lock_frame, lk_array, lk_count, inodelk_cbk);
+    if (ret < 0) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+               "storing locks in local failed, not unlocking "
+               "following locks:");
+
+        dht_log_lk_array(frame->this->name, GF_LOG_WARNING, lk_array, lk_count);
+
+        goto done;
+    }
+
+    local = lock_frame->local;
+    local->main_frame = frame;
+    local->call_cnt = call_cnt;
+
+    flock.l_type = F_UNLCK;
+
+    for (i = 0; i < local->lock[0].layout.my_layout.lk_count; i++) {
+        if (!local->lock[0].layout.my_layout.locks[i]->locked)
+            continue;
+
+        lock_frame->root
+            ->lk_owner = local->lock[0].layout.my_layout.locks[i]->lk_owner;
+        STACK_WIND_COOKIE(
+            lock_frame, dht_unlock_inodelk_cbk, (void *)(long)i,
+            local->lock[0].layout.my_layout.locks[i]->xl,
+            local->lock[0].layout.my_layout.locks[i]->xl->fops->inodelk,
+            local->lock[0].layout.my_layout.locks[i]->domain,
+            &local->lock[0].layout.my_layout.locks[i]->loc, F_SETLK, &flock,
+            NULL);
+        if (!--call_cnt)
+            break;
+    }
+
+    return 0;
 
 done:
-        if (lock_frame)
-                dht_lock_stack_destroy (lock_frame, DHT_INODELK);
+    if (lock_frame)
+        dht_lock_stack_destroy(lock_frame, DHT_INODELK);
 
-        /* no locks acquired, invoke inodelk_cbk */
-        if (ret == 0)
-                inodelk_cbk (frame, NULL, frame->this, 0, 0, NULL);
+    /* no locks acquired, invoke inodelk_cbk */
+    if (ret == 0)
+        inodelk_cbk(frame, NULL, frame->this, 0, 0, NULL);
 
-        return ret;
+    return ret;
 }
 
 int32_t
-dht_unlock_inodelk_wrapper (call_frame_t *frame, dht_ilock_wrap_t *inodelk)
+dht_unlock_inodelk_wrapper(call_frame_t *frame, dht_ilock_wrap_t *inodelk)
 {
-        dht_local_t  *local                   = NULL, *lock_local = NULL;
-        call_frame_t *lock_frame              = NULL;
-        char          pgfid[GF_UUID_BUF_SIZE] = {0};
-        int           ret                     = 0;
-
-        local = frame->local;
-
-        if (!inodelk || !inodelk->locks)
-                goto out;
-
-        gf_uuid_unparse (local->loc.parent->gfid, pgfid);
-
-        lock_frame = copy_frame (frame);
-        if (lock_frame == NULL) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "copy frame failed", pgfid, local->loc.name,
-                        local->loc.path);
-                goto done;
-        }
-
-        lock_local = dht_local_init (lock_frame, NULL, NULL, 0);
-        if (lock_local == NULL) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, ENOMEM,
-                        DHT_MSG_PARENT_LAYOUT_CHANGED,
-                        "mkdir (%s/%s) (path: %s): "
-                        "local creation failed", pgfid, local->loc.name,
-                        local->loc.path);
-                goto done;
-        }
-
-        lock_frame->local = lock_local;
-
-        lock_local->lock[0].layout.my_layout.locks = inodelk->locks;
-        lock_local->lock[0].layout.my_layout.lk_count = inodelk->lk_count;
-        inodelk->locks = NULL;
-        inodelk->lk_count = 0;
-
-        ret = dht_unlock_inodelk (lock_frame,
-                                  lock_local->lock[0].layout.my_layout.locks,
-                                  lock_local->lock[0].layout.my_layout.lk_count,
-                                  dht_unlock_inodelk_done);
-
-        if (ret)
-                goto done;
-
-        lock_frame = NULL;
+    dht_local_t *local = NULL, *lock_local = NULL;
+    call_frame_t *lock_frame = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    int ret = 0;
+
+    local = frame->local;
+
+    if (!inodelk || !inodelk->locks)
+        goto out;
+
+    gf_uuid_unparse(local->loc.parent->gfid, pgfid);
+
+    lock_frame = copy_frame(frame);
+    if (lock_frame == NULL) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, ENOMEM,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "copy frame failed",
+               pgfid, local->loc.name, local->loc.path);
+        goto done;
+    }
+
+    lock_local = dht_local_init(lock_frame, NULL, NULL, 0);
+    if (lock_local == NULL) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, ENOMEM,
+               DHT_MSG_PARENT_LAYOUT_CHANGED,
+               "mkdir (%s/%s) (path: %s): "
+               "local creation failed",
+               pgfid, local->loc.name, local->loc.path);
+        goto done;
+    }
+
+    lock_frame->local = lock_local;
+
+    lock_local->lock[0].layout.my_layout.locks = inodelk->locks;
+    lock_local->lock[0].layout.my_layout.lk_count = inodelk->lk_count;
+    inodelk->locks = NULL;
+    inodelk->lk_count = 0;
+
+    ret = dht_unlock_inodelk(
+        lock_frame, lock_local->lock[0].layout.my_layout.locks,
+        lock_local->lock[0].layout.my_layout.lk_count, dht_unlock_inodelk_done);
+
+    if (ret)
+        goto done;
+
+    lock_frame = NULL;
 
 done:
-        if (lock_frame != NULL) {
-                DHT_STACK_DESTROY (lock_frame);
-        }
+    if (lock_frame != NULL) {
+        DHT_STACK_DESTROY(lock_frame);
+    }
 out:
-        return 0;
+    return 0;
 }
 
 static int
-dht_inodelk_cleanup_cbk (call_frame_t *frame, void *cookie,
-                         xlator_t *this, int32_t op_ret, int32_t op_errno,
-                         dict_t *xdata)
+dht_inodelk_cleanup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_inodelk_done (frame);
-        return 0;
+    dht_inodelk_done(frame);
+    return 0;
 }
 
 static void
-dht_inodelk_cleanup (call_frame_t *lock_frame)
+dht_inodelk_cleanup(call_frame_t *lock_frame)
 {
-        dht_lock_t  **lk_array = NULL;
-        int           lk_count = 0, lk_acquired = 0;
-        dht_local_t  *local    = NULL;
+    dht_lock_t **lk_array = NULL;
+    int lk_count = 0, lk_acquired = 0;
+    dht_local_t *local = NULL;
 
-        local = lock_frame->local;
+    local = lock_frame->local;
 
-        lk_array = local->lock[0].layout.my_layout.locks;
-        lk_count = local->lock[0].layout.my_layout.lk_count;
+    lk_array = local->lock[0].layout.my_layout.locks;
+    lk_count = local->lock[0].layout.my_layout.lk_count;
 
-        lk_acquired = dht_lock_count (lk_array, lk_count);
-        if (lk_acquired != 0) {
-                dht_unlock_inodelk (lock_frame, lk_array, lk_count,
-                                     dht_inodelk_cleanup_cbk);
-        } else {
-                dht_inodelk_done (lock_frame);
-        }
+    lk_acquired = dht_lock_count(lk_array, lk_count);
+    if (lk_acquired != 0) {
+        dht_unlock_inodelk(lock_frame, lk_array, lk_count,
+                           dht_inodelk_cleanup_cbk);
+    } else {
+        dht_inodelk_done(lock_frame);
+    }
 
-        return;
+    return;
 }
 
 static int32_t
-dht_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                             int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_nonblocking_inodelk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                            int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                   = NULL;
-        int          lk_index               = 0, call_cnt = 0;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_local_t *local = NULL;
+    int lk_index = 0, call_cnt = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        local = frame->local;
-        lk_index = (long) cookie;
+    local = frame->local;
+    lk_index = (long)cookie;
 
-        if (op_ret == -1) {
-                local->lock[0].layout.my_layout.op_ret = -1;
-                local->lock[0].layout.my_layout.op_errno = op_errno;
-
-                if (local && local->lock[0].layout.my_layout.locks[lk_index]) {
-                        uuid_utoa_r (local->lock[0].layout.my_layout.locks[lk_index]->loc.inode->gfid,
-                                     gfid);
+    if (op_ret == -1) {
+        local->lock[0].layout.my_layout.op_ret = -1;
+        local->lock[0].layout.my_layout.op_errno = op_errno;
 
-                        gf_msg_debug (this->name, op_errno,
-                                      "inodelk failed on gfid: %s "
-                                      "subvolume: %s", gfid,
-                                      local->lock[0].layout.my_layout.locks[lk_index]->xl->name);
-                }
+        if (local && local->lock[0].layout.my_layout.locks[lk_index]) {
+            uuid_utoa_r(local->lock[0]
+                            .layout.my_layout.locks[lk_index]
+                            ->loc.inode->gfid,
+                        gfid);
 
-                goto out;
+            gf_msg_debug(
+                this->name, op_errno,
+                "inodelk failed on gfid: %s "
+                "subvolume: %s",
+                gfid,
+                local->lock[0].layout.my_layout.locks[lk_index]->xl->name);
         }
 
-        local->lock[0].layout.my_layout.locks[lk_index]->locked = _gf_true;
+        goto out;
+    }
 
-out:
-        call_cnt = dht_frame_return (frame);
-        if (is_last_call (call_cnt)) {
-                if (local->lock[0].layout.my_layout.op_ret < 0) {
-                        dht_inodelk_cleanup (frame);
-                        return 0;
-                }
+    local->lock[0].layout.my_layout.locks[lk_index]->locked = _gf_true;
 
-                dht_inodelk_done (frame);
+out:
+    call_cnt = dht_frame_return(frame);
+    if (is_last_call(call_cnt)) {
+        if (local->lock[0].layout.my_layout.op_ret < 0) {
+            dht_inodelk_cleanup(frame);
+            return 0;
         }
 
-        return 0;
+        dht_inodelk_done(frame);
+    }
+
+    return 0;
 }
 
 int
-dht_nonblocking_inodelk (call_frame_t *frame, dht_lock_t **lk_array,
-                         int lk_count, fop_inodelk_cbk_t inodelk_cbk)
+dht_nonblocking_inodelk(call_frame_t *frame, dht_lock_t **lk_array,
+                        int lk_count, fop_inodelk_cbk_t inodelk_cbk)
 {
-        struct gf_flock  flock      = {0,};
-        int              i          = 0, ret = 0;
-        dht_local_t     *local      = NULL;
-        call_frame_t    *lock_frame = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht-locks", frame, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, lk_array, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, inodelk_cbk, out);
-
-        lock_frame = dht_lock_frame (frame);
-        if (lock_frame == NULL)
-                goto out;
-
-        ret = dht_local_inodelk_init (lock_frame, lk_array, lk_count,
-                                      inodelk_cbk);
-        if (ret < 0) {
-                goto out;
-        }
+    struct gf_flock flock = {
+        0,
+    };
+    int i = 0, ret = 0;
+    dht_local_t *local = NULL;
+    call_frame_t *lock_frame = NULL;
 
-        dht_set_lkowner (lk_array, lk_count, &lock_frame->root->lk_owner);
+    GF_VALIDATE_OR_GOTO("dht-locks", frame, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, lk_array, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, inodelk_cbk, out);
 
-        local = lock_frame->local;
-        local->main_frame = frame;
+    lock_frame = dht_lock_frame(frame);
+    if (lock_frame == NULL)
+        goto out;
 
-        local->call_cnt = lk_count;
+    ret = dht_local_inodelk_init(lock_frame, lk_array, lk_count, inodelk_cbk);
+    if (ret < 0) {
+        goto out;
+    }
 
-        for (i = 0; i < lk_count; i++) {
-                flock.l_type = local->lock[0].layout.my_layout.locks[i]->type;
+    dht_set_lkowner(lk_array, lk_count, &lock_frame->root->lk_owner);
 
-                STACK_WIND_COOKIE (lock_frame, dht_nonblocking_inodelk_cbk,
-                                   (void *) (long) i,
-                                   local->lock[0].layout.my_layout.locks[i]->xl,
-                                   local->lock[0].layout.my_layout.locks[i]->xl->fops->inodelk,
-                                   local->lock[0].layout.my_layout.locks[i]->domain,
-                                   &local->lock[0].layout.my_layout.locks[i]->loc,
-                                   F_SETLK,
-                                   &flock, NULL);
-        }
+    local = lock_frame->local;
+    local->main_frame = frame;
+
+    local->call_cnt = lk_count;
+
+    for (i = 0; i < lk_count; i++) {
+        flock.l_type = local->lock[0].layout.my_layout.locks[i]->type;
+
+        STACK_WIND_COOKIE(
+            lock_frame, dht_nonblocking_inodelk_cbk, (void *)(long)i,
+            local->lock[0].layout.my_layout.locks[i]->xl,
+            local->lock[0].layout.my_layout.locks[i]->xl->fops->inodelk,
+            local->lock[0].layout.my_layout.locks[i]->domain,
+            &local->lock[0].layout.my_layout.locks[i]->loc, F_SETLK, &flock,
+            NULL);
+    }
 
-        return 0;
+    return 0;
 
 out:
-        if (lock_frame)
-                dht_lock_stack_destroy (lock_frame, DHT_INODELK);
+    if (lock_frame)
+        dht_lock_stack_destroy(lock_frame, DHT_INODELK);
 
-        return -1;
+    return -1;
 }
 
 static int32_t
-dht_blocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                          int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_blocking_inodelk_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                         int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        int                  lk_index       = 0;
-        int                  i              = 0;
-        dht_local_t         *local          = NULL;
-        char         gfid[GF_UUID_BUF_SIZE] = {0,};
-        dht_reaction_type_t  reaction       = 0;
-
-        lk_index = (long) cookie;
-
-        local = frame->local;
-        if (op_ret == 0) {
-                local->lock[0].layout.my_layout.locks[lk_index]->locked = _gf_true;
-        } else {
-                switch (op_errno) {
-                case ESTALE:
-                case ENOENT:
-                        reaction = local->lock[0].layout.my_layout.locks[lk_index]->do_on_failure;
-                        if ((reaction != IGNORE_ENOENT_ESTALE) &&
-                            (reaction != IGNORE_ENOENT_ESTALE_EIO)) {
-                                gf_uuid_unparse (local->lock[0].layout.my_layout.locks[lk_index]->loc.gfid, gfid);
-                                local->lock[0].layout.my_layout.op_ret = -1;
-                                local->lock[0].layout.my_layout.op_errno = op_errno;
-                                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                        DHT_MSG_INODELK_FAILED,
-                                        "inodelk failed on subvol %s. gfid:%s",
-                                        local->lock[0].layout.my_layout.locks[lk_index]->xl->name,
-                                        gfid);
-                                goto cleanup;
-                        }
-                        break;
-                case EIO:
-                        reaction = local->lock[0].layout.my_layout.locks[lk_index]->do_on_failure;
-                        if (reaction != IGNORE_ENOENT_ESTALE_EIO) {
-                                gf_uuid_unparse (local->lock[0].layout.my_layout.locks[lk_index]->loc.gfid, gfid);
-                                local->lock[0].layout.my_layout.op_ret = -1;
-                                local->lock[0].layout.my_layout.op_errno = op_errno;
-                                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                        DHT_MSG_INODELK_FAILED,
-                                        "inodelk failed on subvol %s. gfid:%s",
-                                        local->lock[0].layout.my_layout.locks[lk_index]->xl->name,
-                                        gfid);
-                                goto cleanup;
-                        }
-                        break;
-
-                default:
-                        gf_uuid_unparse (local->lock[0].layout.my_layout.locks[lk_index]->loc.gfid, gfid);
-                        local->lock[0].layout.my_layout.op_ret = -1;
-                        local->lock[0].layout.my_layout.op_errno = op_errno;
-                        gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                DHT_MSG_INODELK_FAILED,
-                                "inodelk failed on subvol %s, gfid:%s",
-                                local->lock[0].layout.my_layout.locks[lk_index]->xl->name, gfid);
-                        goto cleanup;
+    int lk_index = 0;
+    int i = 0;
+    dht_local_t *local = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {
+        0,
+    };
+    dht_reaction_type_t reaction = 0;
+
+    lk_index = (long)cookie;
+
+    local = frame->local;
+    if (op_ret == 0) {
+        local->lock[0].layout.my_layout.locks[lk_index]->locked = _gf_true;
+    } else {
+        switch (op_errno) {
+            case ESTALE:
+            case ENOENT:
+                reaction = local->lock[0]
+                               .layout.my_layout.locks[lk_index]
+                               ->do_on_failure;
+                if ((reaction != IGNORE_ENOENT_ESTALE) &&
+                    (reaction != IGNORE_ENOENT_ESTALE_EIO)) {
+                    gf_uuid_unparse(local->lock[0]
+                                        .layout.my_layout.locks[lk_index]
+                                        ->loc.gfid,
+                                    gfid);
+                    local->lock[0].layout.my_layout.op_ret = -1;
+                    local->lock[0].layout.my_layout.op_errno = op_errno;
+                    gf_msg(this->name, GF_LOG_ERROR, op_errno,
+                           DHT_MSG_INODELK_FAILED,
+                           "inodelk failed on subvol %s. gfid:%s",
+                           local->lock[0]
+                               .layout.my_layout.locks[lk_index]
+                               ->xl->name,
+                           gfid);
+                    goto cleanup;
                 }
-        }
+                break;
+            case EIO:
+                reaction = local->lock[0]
+                               .layout.my_layout.locks[lk_index]
+                               ->do_on_failure;
+                if (reaction != IGNORE_ENOENT_ESTALE_EIO) {
+                    gf_uuid_unparse(local->lock[0]
+                                        .layout.my_layout.locks[lk_index]
+                                        ->loc.gfid,
+                                    gfid);
+                    local->lock[0].layout.my_layout.op_ret = -1;
+                    local->lock[0].layout.my_layout.op_errno = op_errno;
+                    gf_msg(this->name, GF_LOG_ERROR, op_errno,
+                           DHT_MSG_INODELK_FAILED,
+                           "inodelk failed on subvol %s. gfid:%s",
+                           local->lock[0]
+                               .layout.my_layout.locks[lk_index]
+                               ->xl->name,
+                           gfid);
+                    goto cleanup;
+                }
+                break;
 
-        if (lk_index == (local->lock[0].layout.my_layout.lk_count - 1)) {
-                for (i = 0; (i < local->lock[0].layout.my_layout.lk_count) &&
-                     (!local->lock[0].layout.my_layout.locks[i]->locked); i++)
-                        ;
+            default:
+                gf_uuid_unparse(
+                    local->lock[0].layout.my_layout.locks[lk_index]->loc.gfid,
+                    gfid);
+                local->lock[0].layout.my_layout.op_ret = -1;
+                local->lock[0].layout.my_layout.op_errno = op_errno;
+                gf_msg(
+                    this->name, GF_LOG_ERROR, op_errno, DHT_MSG_INODELK_FAILED,
+                    "inodelk failed on subvol %s, gfid:%s",
+                    local->lock[0].layout.my_layout.locks[lk_index]->xl->name,
+                    gfid);
+                goto cleanup;
+        }
+    }
 
-                if (i == local->lock[0].layout.my_layout.lk_count) {
-                        local->lock[0].layout.my_layout.op_ret = -1;
-                        local->lock[0].layout.my_layout.op_errno = op_errno;
-                }
+    if (lk_index == (local->lock[0].layout.my_layout.lk_count - 1)) {
+        for (i = 0; (i < local->lock[0].layout.my_layout.lk_count) &&
+                    (!local->lock[0].layout.my_layout.locks[i]->locked);
+             i++)
+            ;
 
-                dht_inodelk_done (frame);
-        } else {
-                dht_blocking_inodelk_rec (frame, ++lk_index);
+        if (i == local->lock[0].layout.my_layout.lk_count) {
+            local->lock[0].layout.my_layout.op_ret = -1;
+            local->lock[0].layout.my_layout.op_errno = op_errno;
         }
 
-        return 0;
+        dht_inodelk_done(frame);
+    } else {
+        dht_blocking_inodelk_rec(frame, ++lk_index);
+    }
+
+    return 0;
 
 cleanup:
-        dht_inodelk_cleanup (frame);
+    dht_inodelk_cleanup(frame);
 
-        return 0;
+    return 0;
 }
 
 void
-dht_blocking_inodelk_rec (call_frame_t *frame, int i)
+dht_blocking_inodelk_rec(call_frame_t *frame, int i)
 {
-        dht_local_t     *local = NULL;
-        struct gf_flock  flock = {0,};
+    dht_local_t *local = NULL;
+    struct gf_flock flock = {
+        0,
+    };
 
-        local = frame->local;
+    local = frame->local;
 
-        flock.l_type = local->lock[0].layout.my_layout.locks[i]->type;
+    flock.l_type = local->lock[0].layout.my_layout.locks[i]->type;
 
-        STACK_WIND_COOKIE (frame, dht_blocking_inodelk_cbk,
-                           (void *) (long) i,
-                           local->lock[0].layout.my_layout.locks[i]->xl,
-                           local->lock[0].layout.my_layout.locks[i]->xl->fops->inodelk,
-                           local->lock[0].layout.my_layout.locks[i]->domain,
-                           &local->lock[0].layout.my_layout.locks[i]->loc,
-                           F_SETLKW,
-                           &flock, NULL);
+    STACK_WIND_COOKIE(
+        frame, dht_blocking_inodelk_cbk, (void *)(long)i,
+        local->lock[0].layout.my_layout.locks[i]->xl,
+        local->lock[0].layout.my_layout.locks[i]->xl->fops->inodelk,
+        local->lock[0].layout.my_layout.locks[i]->domain,
+        &local->lock[0].layout.my_layout.locks[i]->loc, F_SETLKW, &flock, NULL);
 
-        return;
+    return;
 }
 
 int
-dht_blocking_inodelk (call_frame_t *frame, dht_lock_t **lk_array,
-                      int lk_count, fop_inodelk_cbk_t inodelk_cbk)
+dht_blocking_inodelk(call_frame_t *frame, dht_lock_t **lk_array, int lk_count,
+                     fop_inodelk_cbk_t inodelk_cbk)
 {
-        int           ret                       = -1;
-        call_frame_t *lock_frame                = NULL;
-        dht_local_t  *local                     = NULL;
-        dht_local_t  *tmp_local                 = NULL;
-        char          gfid[GF_UUID_BUF_SIZE]    = {0,};
-
-        GF_VALIDATE_OR_GOTO ("dht-locks", frame, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, lk_array, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, inodelk_cbk, out);
-
-        tmp_local = frame->local;
-
-        lock_frame = dht_lock_frame (frame);
-        if (lock_frame == NULL) {
-                gf_uuid_unparse (tmp_local->loc.gfid, gfid);
-                gf_msg ("dht", GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_LOCK_FRAME_FAILED,
-                        "memory allocation failed for lock_frame. gfid:%s"
-                        " path:%s", gfid, tmp_local->loc.path);
-                goto out;
-        }
-
-        ret = dht_local_inodelk_init (lock_frame, lk_array, lk_count,
-                                      inodelk_cbk);
-        if (ret < 0) {
-                gf_uuid_unparse (tmp_local->loc.gfid, gfid);
-                gf_msg ("dht", GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_LOCAL_LOCK_INIT_FAILED,
-                        "dht_local_lock_init failed, gfid: %s path:%s", gfid,
-                        tmp_local->loc.path);
-                goto out;
-        }
-
-        dht_set_lkowner (lk_array, lk_count, &lock_frame->root->lk_owner);
-
-        local = lock_frame->local;
-        local->main_frame = frame;
-
-        dht_blocking_inodelk_rec (lock_frame, 0);
-
-        return 0;
+    int ret = -1;
+    call_frame_t *lock_frame = NULL;
+    dht_local_t *local = NULL;
+    dht_local_t *tmp_local = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {
+        0,
+    };
+
+    GF_VALIDATE_OR_GOTO("dht-locks", frame, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, lk_array, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, inodelk_cbk, out);
+
+    tmp_local = frame->local;
+
+    lock_frame = dht_lock_frame(frame);
+    if (lock_frame == NULL) {
+        gf_uuid_unparse(tmp_local->loc.gfid, gfid);
+        gf_msg("dht", GF_LOG_ERROR, ENOMEM, DHT_MSG_LOCK_FRAME_FAILED,
+               "memory allocation failed for lock_frame. gfid:%s"
+               " path:%s",
+               gfid, tmp_local->loc.path);
+        goto out;
+    }
+
+    ret = dht_local_inodelk_init(lock_frame, lk_array, lk_count, inodelk_cbk);
+    if (ret < 0) {
+        gf_uuid_unparse(tmp_local->loc.gfid, gfid);
+        gf_msg("dht", GF_LOG_ERROR, ENOMEM, DHT_MSG_LOCAL_LOCK_INIT_FAILED,
+               "dht_local_lock_init failed, gfid: %s path:%s", gfid,
+               tmp_local->loc.path);
+        goto out;
+    }
+
+    dht_set_lkowner(lk_array, lk_count, &lock_frame->root->lk_owner);
+
+    local = lock_frame->local;
+    local->main_frame = frame;
+
+    dht_blocking_inodelk_rec(lock_frame, 0);
+
+    return 0;
 out:
-        if (lock_frame)
-                dht_lock_stack_destroy (lock_frame, DHT_INODELK);
+    if (lock_frame)
+        dht_lock_stack_destroy(lock_frame, DHT_INODELK);
 
-        return -1;
+    return -1;
 }
 
 void
-dht_unlock_namespace (call_frame_t *frame, dht_dir_transaction_t *lock)
+dht_unlock_namespace(call_frame_t *frame, dht_dir_transaction_t *lock)
 {
-        GF_VALIDATE_OR_GOTO ("dht-locks", frame, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, lock, out);
+    GF_VALIDATE_OR_GOTO("dht-locks", frame, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, lock, out);
 
-        dht_unlock_entrylk_wrapper (frame, &lock->ns.directory_ns);
-        dht_unlock_inodelk_wrapper (frame, &lock->ns.parent_layout);
+    dht_unlock_entrylk_wrapper(frame, &lock->ns.directory_ns);
+    dht_unlock_inodelk_wrapper(frame, &lock->ns.parent_layout);
 
 out:
-        return;
+    return;
 }
 
 static int32_t
-dht_protect_namespace_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_protect_namespace_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local    = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
-        if (op_ret != 0)
-                dht_unlock_inodelk_wrapper (frame,
-                                            &local->current->ns.parent_layout);
+    local = frame->local;
+    if (op_ret != 0)
+        dht_unlock_inodelk_wrapper(frame, &local->current->ns.parent_layout);
 
-        local->current->ns.ns_cbk (frame, cookie, this, op_ret, op_errno,
-                                   xdata);
-        return 0;
+    local->current->ns.ns_cbk(frame, cookie, this, op_ret, op_errno, xdata);
+    return 0;
 }
 
 int32_t
-dht_blocking_entrylk_after_inodelk (call_frame_t *frame, void *cookie,
-                                    xlator_t *this, int32_t op_ret,
-                                    int32_t op_errno, dict_t *xdata)
+dht_blocking_entrylk_after_inodelk(call_frame_t *frame, void *cookie,
+                                   xlator_t *this, int32_t op_ret,
+                                   int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t           *local                   = NULL;
-        int                    ret                     = -1;
-        loc_t                 *loc                     = NULL;
-        dht_lock_t           **lk_array                = NULL;
-        char                   pgfid[GF_UUID_BUF_SIZE] = {0};
-        int                    count                   = 0;
-        dht_elock_wrap_t      *entrylk                 = NULL;
-
-        local = frame->local;
-        entrylk = &local->current->ns.directory_ns;
-
-        if (op_ret < 0) {
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-                goto err;
-        }
-
-        loc = &entrylk->locks[0]->loc;
-        gf_uuid_unparse (loc->gfid, pgfid);
-
-        local->op_ret = 0;
-        lk_array = entrylk->locks;
-        count = entrylk->lk_count;
-
-        ret = dht_blocking_entrylk (frame, lk_array, count,
-                                    dht_protect_namespace_cbk);
-
-        if (ret < 0) {
-                local->op_ret = -1;
-                local->op_errno = EIO;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_ENTRYLK_ERROR,
-                        "%s (%s/%s): "
-                        "dht_blocking_entrylk failed after taking inodelk",
-                        gf_fop_list[local->fop], pgfid,
-                        entrylk->locks[0]->basename);
-                goto err;
-        }
-
-        return 0;
+    dht_local_t *local = NULL;
+    int ret = -1;
+    loc_t *loc = NULL;
+    dht_lock_t **lk_array = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    int count = 0;
+    dht_elock_wrap_t *entrylk = NULL;
+
+    local = frame->local;
+    entrylk = &local->current->ns.directory_ns;
+
+    if (op_ret < 0) {
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        goto err;
+    }
+
+    loc = &entrylk->locks[0]->loc;
+    gf_uuid_unparse(loc->gfid, pgfid);
+
+    local->op_ret = 0;
+    lk_array = entrylk->locks;
+    count = entrylk->lk_count;
+
+    ret = dht_blocking_entrylk(frame, lk_array, count,
+                               dht_protect_namespace_cbk);
+
+    if (ret < 0) {
+        local->op_ret = -1;
+        local->op_errno = EIO;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_ENTRYLK_ERROR,
+               "%s (%s/%s): "
+               "dht_blocking_entrylk failed after taking inodelk",
+               gf_fop_list[local->fop], pgfid, entrylk->locks[0]->basename);
+        goto err;
+    }
+
+    return 0;
 
 err:
-        if (lk_array != NULL) {
-                dht_lock_array_free (lk_array, count);
-                GF_FREE (lk_array);
-                entrylk->locks = NULL;
-                entrylk->lk_count = 0;
-        }
-
-        /* Unlock inodelk. No harm calling unlock twice */
-        dht_unlock_inodelk_wrapper (frame, &local->current->ns.parent_layout);
-        /* Call ns_cbk. It will take care of unwinding */
-        local->current->ns.ns_cbk (frame, NULL, this, local->op_ret,
-                                   local->op_errno, NULL);
-        return 0;
+    if (lk_array != NULL) {
+        dht_lock_array_free(lk_array, count);
+        GF_FREE(lk_array);
+        entrylk->locks = NULL;
+        entrylk->lk_count = 0;
+    }
+
+    /* Unlock inodelk. No harm calling unlock twice */
+    dht_unlock_inodelk_wrapper(frame, &local->current->ns.parent_layout);
+    /* Call ns_cbk. It will take care of unwinding */
+    local->current->ns.ns_cbk(frame, NULL, this, local->op_ret, local->op_errno,
+                              NULL);
+    return 0;
 }
 
 /* Given the loc and the subvol, this routine takes the inodelk on
@@ -1265,137 +1278,131 @@ err:
  * and then entrylk serially.
  */
 int
-dht_protect_namespace (call_frame_t *frame, loc_t *loc,
-                       xlator_t *subvol,
-                       struct dht_namespace *ns,
-                       fop_entrylk_cbk_t ns_cbk)
+dht_protect_namespace(call_frame_t *frame, loc_t *loc, xlator_t *subvol,
+                      struct dht_namespace *ns, fop_entrylk_cbk_t ns_cbk)
 {
-        dht_ilock_wrap_t  *inodelk                 = NULL;
-        dht_elock_wrap_t  *entrylk                 = NULL;
-        dht_lock_t       **lk_array                = NULL;
-        dht_local_t       *local                   = NULL;
-        xlator_t          *this                    = NULL;
-        loc_t              parent                  = {0,};
-        int                ret                     = -1;
-        char               pgfid[GF_UUID_BUF_SIZE] = {0};
-        int32_t            op_errno                = 0;
-        int                count                   = 1;
-
-        GF_VALIDATE_OR_GOTO ("dht-locks", frame, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, loc, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, loc->parent, out);
-        GF_VALIDATE_OR_GOTO (frame->this->name, subvol, out);
-
-        local = frame->local;
-        this = frame->this;
-
-        inodelk = &ns->parent_layout;
-        entrylk = &ns->directory_ns;
-
-        /* Initialize entrylk_cbk and parent loc */
-        ns->ns_cbk = ns_cbk;
-
-        ret = dht_build_parent_loc (this, &parent, loc, &op_errno);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                        DHT_MSG_LOC_FAILED, "gfid:%s (name:%s) (path: %s): "
-                        "parent loc build failed", loc->gfid, loc->name,
-                         loc->path);
-                goto out;
-        }
-        gf_uuid_unparse (parent.gfid, pgfid);
-
-        /* Alloc inodelk */
-        inodelk->locks = GF_CALLOC (count, sizeof (*lk_array),
-                                    gf_common_mt_pointer);
-        if (inodelk->locks == NULL) {
-                local->op_errno = ENOMEM;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_NO_MEMORY,
-                        "%s (%s/%s) (path: %s): "
-                        "calloc failure",
-                        gf_fop_list[local->fop], pgfid, loc->name, loc->path);
-                goto out;
-        }
-
-        inodelk->locks[0] = dht_lock_new (this, subvol, &parent, F_RDLCK,
-                                          DHT_LAYOUT_HEAL_DOMAIN, NULL,
-                                          FAIL_ON_ANY_ERROR);
-        if (inodelk->locks[0] == NULL) {
-                local->op_errno = ENOMEM;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_NO_MEMORY,
-                        "%s (%s/%s) (path: %s): "
-                        "inodelk: lock allocation failed",
-                        gf_fop_list[local->fop], pgfid, loc->name, loc->path);
-                goto err;
-        }
-        inodelk->lk_count = count;
-
-        /* Allock entrylk */
-        entrylk->locks = GF_CALLOC (count, sizeof (*lk_array),
-                                    gf_common_mt_pointer);
-        if (entrylk->locks == NULL) {
-                local->op_errno = ENOMEM;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_NO_MEMORY,
-                        "%s (%s/%s) (path: %s): "
-                        "entrylk: calloc failure",
-                        gf_fop_list[local->fop], pgfid, loc->name, loc->path);
-
-                goto err;
-        }
-
-        entrylk->locks[0] = dht_lock_new (this, subvol, &parent, F_WRLCK,
-                                          DHT_ENTRY_SYNC_DOMAIN, loc->name,
-                                          FAIL_ON_ANY_ERROR);
-        if (entrylk->locks[0] == NULL) {
-                local->op_errno = ENOMEM;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_NO_MEMORY,
-                        "%s (%s/%s) (path: %s): "
-                        "entrylk: lock allocation failed",
-                        gf_fop_list[local->fop], pgfid, loc->name, loc->path);
-
-                goto err;
-        }
-        entrylk->lk_count = count;
-
-        /* Take read inodelk on parent. If it is successful, take write entrylk
-         * on name in cbk.
-         */
-        lk_array = inodelk->locks;
-        ret = dht_blocking_inodelk (frame, lk_array, count,
-                                    dht_blocking_entrylk_after_inodelk);
-        if (ret < 0) {
-                local->op_errno = EIO;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_INODELK_ERROR,
-                        "%s (%s/%s) (path: %s): "
-                        "dht_blocking_inodelk failed",
-                        gf_fop_list[local->fop], pgfid, loc->name, loc->path);
-                goto err;
-        }
-
-        loc_wipe (&parent);
-
-        return 0;
+    dht_ilock_wrap_t *inodelk = NULL;
+    dht_elock_wrap_t *entrylk = NULL;
+    dht_lock_t **lk_array = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    loc_t parent = {
+        0,
+    };
+    int ret = -1;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    int32_t op_errno = 0;
+    int count = 1;
+
+    GF_VALIDATE_OR_GOTO("dht-locks", frame, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, loc, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, loc->parent, out);
+    GF_VALIDATE_OR_GOTO(frame->this->name, subvol, out);
+
+    local = frame->local;
+    this = frame->this;
+
+    inodelk = &ns->parent_layout;
+    entrylk = &ns->directory_ns;
+
+    /* Initialize entrylk_cbk and parent loc */
+    ns->ns_cbk = ns_cbk;
+
+    ret = dht_build_parent_loc(this, &parent, loc, &op_errno);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, op_errno, DHT_MSG_LOC_FAILED,
+               "gfid:%s (name:%s) (path: %s): "
+               "parent loc build failed",
+               loc->gfid, loc->name, loc->path);
+        goto out;
+    }
+    gf_uuid_unparse(parent.gfid, pgfid);
+
+    /* Alloc inodelk */
+    inodelk->locks = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_pointer);
+    if (inodelk->locks == NULL) {
+        local->op_errno = ENOMEM;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno, DHT_MSG_NO_MEMORY,
+               "%s (%s/%s) (path: %s): "
+               "calloc failure",
+               gf_fop_list[local->fop], pgfid, loc->name, loc->path);
+        goto out;
+    }
+
+    inodelk->locks[0] = dht_lock_new(this, subvol, &parent, F_RDLCK,
+                                     DHT_LAYOUT_HEAL_DOMAIN, NULL,
+                                     FAIL_ON_ANY_ERROR);
+    if (inodelk->locks[0] == NULL) {
+        local->op_errno = ENOMEM;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno, DHT_MSG_NO_MEMORY,
+               "%s (%s/%s) (path: %s): "
+               "inodelk: lock allocation failed",
+               gf_fop_list[local->fop], pgfid, loc->name, loc->path);
+        goto err;
+    }
+    inodelk->lk_count = count;
+
+    /* Allock entrylk */
+    entrylk->locks = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_pointer);
+    if (entrylk->locks == NULL) {
+        local->op_errno = ENOMEM;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno, DHT_MSG_NO_MEMORY,
+               "%s (%s/%s) (path: %s): "
+               "entrylk: calloc failure",
+               gf_fop_list[local->fop], pgfid, loc->name, loc->path);
+
+        goto err;
+    }
+
+    entrylk->locks[0] = dht_lock_new(this, subvol, &parent, F_WRLCK,
+                                     DHT_ENTRY_SYNC_DOMAIN, loc->name,
+                                     FAIL_ON_ANY_ERROR);
+    if (entrylk->locks[0] == NULL) {
+        local->op_errno = ENOMEM;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno, DHT_MSG_NO_MEMORY,
+               "%s (%s/%s) (path: %s): "
+               "entrylk: lock allocation failed",
+               gf_fop_list[local->fop], pgfid, loc->name, loc->path);
+
+        goto err;
+    }
+    entrylk->lk_count = count;
+
+    /* Take read inodelk on parent. If it is successful, take write entrylk
+     * on name in cbk.
+     */
+    lk_array = inodelk->locks;
+    ret = dht_blocking_inodelk(frame, lk_array, count,
+                               dht_blocking_entrylk_after_inodelk);
+    if (ret < 0) {
+        local->op_errno = EIO;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_INODELK_ERROR,
+               "%s (%s/%s) (path: %s): "
+               "dht_blocking_inodelk failed",
+               gf_fop_list[local->fop], pgfid, loc->name, loc->path);
+        goto err;
+    }
+
+    loc_wipe(&parent);
+
+    return 0;
 err:
-        if (entrylk->locks != NULL) {
-                dht_lock_array_free (entrylk->locks, count);
-                GF_FREE (entrylk->locks);
-                entrylk->locks = NULL;
-                entrylk->lk_count = 0;
-        }
+    if (entrylk->locks != NULL) {
+        dht_lock_array_free(entrylk->locks, count);
+        GF_FREE(entrylk->locks);
+        entrylk->locks = NULL;
+        entrylk->lk_count = 0;
+    }
 
-        if (inodelk->locks != NULL) {
-                dht_lock_array_free (inodelk->locks, count);
-                GF_FREE (inodelk->locks);
-                inodelk->locks = NULL;
-                inodelk->lk_count = 0;
-        }
+    if (inodelk->locks != NULL) {
+        dht_lock_array_free(inodelk->locks, count);
+        GF_FREE(inodelk->locks);
+        inodelk->locks = NULL;
+        inodelk->lk_count = 0;
+    }
 
-        loc_wipe (&parent);
+    loc_wipe(&parent);
 out:
-        return -1;
+    return -1;
 }
diff --git a/xlators/cluster/dht/src/dht-rebalance.c b/xlators/cluster/dht/src/dht-rebalance.c
index 9983429acec..7a2539dc5f5 100644
--- a/xlators/cluster/dht/src/dht-rebalance.c
+++ b/xlators/cluster/dht/src/dht-rebalance.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "tier.h"
 #include "dht-common.h"
 #include "xlator.h"
@@ -18,244 +17,230 @@
 #include <signal.h>
 #include "events.h"
 
-#define GF_DISK_SECTOR_SIZE              512
-#define DHT_REBALANCE_PID               4242 /* Change it if required */
-#define DHT_REBALANCE_BLKSIZE           (1024 * 1024)  /* 1 MB */
-#define MAX_MIGRATE_QUEUE_COUNT          500
-#define MIN_MIGRATE_QUEUE_COUNT          200
-#define MAX_REBAL_TYPE_SIZE               16
-#define FILE_CNT_INTERVAL                600 /* 10 mins */
-#define ESTIMATE_START_INTERVAL          600 /* 10 mins */
-#define HARDLINK_MIG_INPROGRESS          -2
-#define SKIP_MIGRATION_FD_POSITIVE       -3
+#define GF_DISK_SECTOR_SIZE 512
+#define DHT_REBALANCE_PID 4242              /* Change it if required */
+#define DHT_REBALANCE_BLKSIZE (1024 * 1024) /* 1 MB */
+#define MAX_MIGRATE_QUEUE_COUNT 500
+#define MIN_MIGRATE_QUEUE_COUNT 200
+#define MAX_REBAL_TYPE_SIZE 16
+#define FILE_CNT_INTERVAL 600       /* 10 mins */
+#define ESTIMATE_START_INTERVAL 600 /* 10 mins */
+#define HARDLINK_MIG_INPROGRESS -2
+#define SKIP_MIGRATION_FD_POSITIVE -3
 #ifndef MAX
-#define MAX(a, b) (((a) > (b))?(a):(b))
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #endif
 
-
-#define GF_CRAWL_INDEX_MOVE(idx, sv_cnt)  {     \
-                idx++;                          \
-                idx %= sv_cnt;                  \
-        }
+#define GF_CRAWL_INDEX_MOVE(idx, sv_cnt)                                       \
+    {                                                                          \
+        idx++;                                                                 \
+        idx %= sv_cnt;                                                         \
+    }
 
 uint64_t g_totalfiles = 0;
 uint64_t g_totalsize = 0;
 
-
 void
-gf_defrag_free_dir_dfmeta (struct dir_dfmeta *meta, int local_subvols_cnt)
+gf_defrag_free_dir_dfmeta(struct dir_dfmeta *meta, int local_subvols_cnt)
 {
-        int     i = 0;
+    int i = 0;
 
-        if (meta) {
-                for (i = 0; i < local_subvols_cnt; i++) {
-                        gf_dirent_free (&meta->equeue[i]);
-                }
-
-                GF_FREE (meta->equeue);
-                GF_FREE (meta->head);
-                GF_FREE (meta->iterator);
-                GF_FREE (meta->offset_var);
-                GF_FREE (meta->fetch_entries);
-                GF_FREE (meta);
+    if (meta) {
+        for (i = 0; i < local_subvols_cnt; i++) {
+            gf_dirent_free(&meta->equeue[i]);
         }
+
+        GF_FREE(meta->equeue);
+        GF_FREE(meta->head);
+        GF_FREE(meta->iterator);
+        GF_FREE(meta->offset_var);
+        GF_FREE(meta->fetch_entries);
+        GF_FREE(meta);
+    }
 }
 
 void
-gf_defrag_free_container (struct dht_container *container)
+gf_defrag_free_container(struct dht_container *container)
 {
-        if (container) {
-                gf_dirent_entry_free (container->df_entry);
+    if (container) {
+        gf_dirent_entry_free(container->df_entry);
 
-                if (container->parent_loc) {
-                        loc_wipe (container->parent_loc);
-                }
+        if (container->parent_loc) {
+            loc_wipe(container->parent_loc);
+        }
 
-                GF_FREE (container->parent_loc);
+        GF_FREE(container->parent_loc);
 
-                GF_FREE (container);
-        }
+        GF_FREE(container);
+    }
 }
 
 void
-dht_set_global_defrag_error (gf_defrag_info_t *defrag, int ret)
+dht_set_global_defrag_error(gf_defrag_info_t *defrag, int ret)
 {
-        LOCK (&defrag->lock);
-        {
-                defrag->global_error = ret;
-        }
-        UNLOCK (&defrag->lock);
-        return;
+    LOCK(&defrag->lock);
+    {
+        defrag->global_error = ret;
+    }
+    UNLOCK(&defrag->lock);
+    return;
 }
 
-
 static gf_boolean_t
-dht_is_tier_command (int cmd) {
-
-        gf_boolean_t is_tier = _gf_false;
+dht_is_tier_command(int cmd)
+{
+    gf_boolean_t is_tier = _gf_false;
 
-        switch (cmd) {
+    switch (cmd) {
         case GF_DEFRAG_CMD_START_TIER:
         case GF_DEFRAG_CMD_STATUS_TIER:
         case GF_DEFRAG_CMD_START_DETACH_TIER:
         case GF_DEFRAG_CMD_STOP_DETACH_TIER:
         case GF_DEFRAG_CMD_PAUSE_TIER:
         case GF_DEFRAG_CMD_RESUME_TIER:
-                is_tier = _gf_true;
-                break;
+            is_tier = _gf_true;
+            break;
         default:
-                break;
-        }
-        return is_tier;
-
+            break;
+    }
+    return is_tier;
 }
 
-
 static int
-dht_send_rebalance_event (xlator_t *this, int cmd, gf_defrag_status_t status)
+dht_send_rebalance_event(xlator_t *this, int cmd, gf_defrag_status_t status)
 {
-        int ret = -1;
-        char *volname = NULL;
-        char *tmpstr  = NULL;
-        char *ptr = NULL;
-        char *suffix = "-dht";
-        dht_conf_t   *conf = NULL;
-        gf_defrag_info_t *defrag = NULL;
-        int len = 0;
-
-        eventtypes_t event = EVENT_LAST;
-
-        switch (status) {
+    int ret = -1;
+    char *volname = NULL;
+    char *tmpstr = NULL;
+    char *ptr = NULL;
+    char *suffix = "-dht";
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    int len = 0;
+
+    eventtypes_t event = EVENT_LAST;
+
+    switch (status) {
         case GF_DEFRAG_STATUS_COMPLETE:
-                event = EVENT_VOLUME_REBALANCE_COMPLETE;
-                break;
+            event = EVENT_VOLUME_REBALANCE_COMPLETE;
+            break;
         case GF_DEFRAG_STATUS_FAILED:
-                event = EVENT_VOLUME_REBALANCE_FAILED;
-                break;
+            event = EVENT_VOLUME_REBALANCE_FAILED;
+            break;
         case GF_DEFRAG_STATUS_STOPPED:
-                event = EVENT_VOLUME_REBALANCE_STOP;
-                break;
+            event = EVENT_VOLUME_REBALANCE_STOP;
+            break;
         default:
-                break;
-
-        }
-
-        if (dht_is_tier_command (cmd)) {
-                /* We should have the tier volume name*/
-                conf = this->private;
-                defrag = conf->defrag;
-                volname = defrag->tier_conf.volname;
-        } else {
-                /* DHT volume */
-                len = strlen (this->name) - strlen (suffix);
-                tmpstr = gf_strdup (this->name);
-                if (tmpstr) {
-                        ptr = tmpstr + len;
-                        if (!strcmp (ptr, suffix)) {
-                                tmpstr[len] = '\0';
-                                volname = tmpstr;
-                        }
-                }
-        }
+            break;
+    }
 
-        if (!volname) {
-                /* Better than nothing */
-                volname = this->name;
-        }
-
-        if (event != EVENT_LAST) {
-                gf_event (event, "volume=%s", volname);
-        }
-
-        GF_FREE (tmpstr);
-        return ret;
+    if (dht_is_tier_command(cmd)) {
+        /* We should have the tier volume name*/
+        conf = this->private;
+        defrag = conf->defrag;
+        volname = defrag->tier_conf.volname;
+    } else {
+        /* DHT volume */
+        len = strlen(this->name) - strlen(suffix);
+        tmpstr = gf_strdup(this->name);
+        if (tmpstr) {
+            ptr = tmpstr + len;
+            if (!strcmp(ptr, suffix)) {
+                tmpstr[len] = '\0';
+                volname = tmpstr;
+            }
+        }
+    }
+
+    if (!volname) {
+        /* Better than nothing */
+        volname = this->name;
+    }
+
+    if (event != EVENT_LAST) {
+        gf_event(event, "volume=%s", volname);
+    }
+
+    GF_FREE(tmpstr);
+    return ret;
 }
 
-
 static void
-dht_strip_out_acls (dict_t *dict)
+dht_strip_out_acls(dict_t *dict)
 {
-        if (dict) {
-                dict_del (dict, "trusted.SGI_ACL_FILE");
-                dict_del (dict, POSIX_ACL_ACCESS_XATTR);
-        }
+    if (dict) {
+        dict_del(dict, "trusted.SGI_ACL_FILE");
+        dict_del(dict, POSIX_ACL_ACCESS_XATTR);
+    }
 }
 
-
-
 static int
-dht_write_with_holes (xlator_t *to, fd_t *fd, struct iovec *vec, int count,
-                      int32_t size, off_t offset, struct iobref *iobref,
-                      int *fop_errno)
+dht_write_with_holes(xlator_t *to, fd_t *fd, struct iovec *vec, int count,
+                     int32_t size, off_t offset, struct iobref *iobref,
+                     int *fop_errno)
 {
-        int i            = 0;
-        int ret          = -1;
-        int start_idx    = 0;
-        int tmp_offset   = 0;
-        int write_needed = 0;
-        int buf_len      = 0;
-        int size_pending = 0;
-        char *buf        = NULL;
-
-        /* loop through each vector */
-        for (i = 0; i < count; i++) {
-                buf = vec[i].iov_base;
-                buf_len = vec[i].iov_len;
-
-                for (start_idx = 0; (start_idx + GF_DISK_SECTOR_SIZE) <= buf_len;
-                     start_idx += GF_DISK_SECTOR_SIZE) {
-
-                        if (mem_0filled (buf + start_idx, GF_DISK_SECTOR_SIZE) != 0) {
-                                write_needed = 1;
-                                continue;
-                        }
-
-                        if (write_needed) {
-                                ret = syncop_write (to, fd, (buf + tmp_offset),
-                                                    (start_idx - tmp_offset),
-                                                    (offset + tmp_offset),
-                                                    iobref, 0, NULL, NULL);
-                                /* 'path' will be logged in calling function */
-                                if (ret < 0) {
-                                        gf_log (THIS->name, GF_LOG_WARNING,
-                                                "failed to write (%s)",
-                                                strerror (-ret));
-                                        *fop_errno = -ret;
-                                        ret = -1;
-                                        goto out;
-                                }
-
-                                write_needed = 0;
-                        }
-                        tmp_offset = start_idx + GF_DISK_SECTOR_SIZE;
+    int i = 0;
+    int ret = -1;
+    int start_idx = 0;
+    int tmp_offset = 0;
+    int write_needed = 0;
+    int buf_len = 0;
+    int size_pending = 0;
+    char *buf = NULL;
+
+    /* loop through each vector */
+    for (i = 0; i < count; i++) {
+        buf = vec[i].iov_base;
+        buf_len = vec[i].iov_len;
+
+        for (start_idx = 0; (start_idx + GF_DISK_SECTOR_SIZE) <= buf_len;
+             start_idx += GF_DISK_SECTOR_SIZE) {
+            if (mem_0filled(buf + start_idx, GF_DISK_SECTOR_SIZE) != 0) {
+                write_needed = 1;
+                continue;
+            }
+
+            if (write_needed) {
+                ret = syncop_write(
+                    to, fd, (buf + tmp_offset), (start_idx - tmp_offset),
+                    (offset + tmp_offset), iobref, 0, NULL, NULL);
+                /* 'path' will be logged in calling function */
+                if (ret < 0) {
+                    gf_log(THIS->name, GF_LOG_WARNING, "failed to write (%s)",
+                           strerror(-ret));
+                    *fop_errno = -ret;
+                    ret = -1;
+                    goto out;
                 }
 
-                if ((start_idx < buf_len) || write_needed) {
-                        /* This means, last chunk is not yet written.. write it */
-                        ret = syncop_write (to, fd, (buf + tmp_offset),
-                                            (buf_len - tmp_offset),
-                                            (offset + tmp_offset), iobref, 0,
-                                            NULL, NULL);
-                        if (ret < 0) {
-                                /* 'path' will be logged in calling function */
-                                gf_log (THIS->name, GF_LOG_WARNING,
-                                        "failed to write (%s)",
-                                        strerror (-ret));
-                                *fop_errno = -ret;
-                                ret = -1;
-                                goto out;
-                        }
-                }
+                write_needed = 0;
+            }
+            tmp_offset = start_idx + GF_DISK_SECTOR_SIZE;
+        }
 
-                size_pending = (size - buf_len);
-                if (!size_pending)
-                        break;
+        if ((start_idx < buf_len) || write_needed) {
+            /* This means, last chunk is not yet written.. write it */
+            ret = syncop_write(to, fd, (buf + tmp_offset),
+                               (buf_len - tmp_offset), (offset + tmp_offset),
+                               iobref, 0, NULL, NULL);
+            if (ret < 0) {
+                /* 'path' will be logged in calling function */
+                gf_log(THIS->name, GF_LOG_WARNING, "failed to write (%s)",
+                       strerror(-ret));
+                *fop_errno = -ret;
+                ret = -1;
+                goto out;
+            }
         }
 
-        ret = size;
-out:
-        return ret;
+        size_pending = (size - buf_len);
+        if (!size_pending)
+            break;
+    }
 
+    ret = size;
+out:
+    return ret;
 }
 
 /*
@@ -294,323 +279,318 @@ be converted to "0" in dht_migrate_file.
 */
 
 int32_t
-gf_defrag_handle_hardlink (xlator_t *this, loc_t *loc, int *fop_errno)
+gf_defrag_handle_hardlink(xlator_t *this, loc_t *loc, int *fop_errno)
 {
-        int32_t                 ret             = -1;
-        xlator_t               *cached_subvol   = NULL;
-        xlator_t               *hashed_subvol   = NULL;
-        xlator_t               *linkto_subvol   = NULL;
-        data_t                 *data            = NULL;
-        struct iatt             iatt            = {0,};
-        int32_t                 op_errno        = 0;
-        dht_conf_t             *conf            = NULL;
-        gf_loglevel_t          loglevel         = 0;
-        dict_t                 *link_xattr      = NULL;
-        dict_t                 *dict            = NULL;
-        dict_t                 *xattr_rsp       = NULL;
-        struct iatt             stbuf                   = {0,};
-
+    int32_t ret = -1;
+    xlator_t *cached_subvol = NULL;
+    xlator_t *hashed_subvol = NULL;
+    xlator_t *linkto_subvol = NULL;
+    data_t *data = NULL;
+    struct iatt iatt = {
+        0,
+    };
+    int32_t op_errno = 0;
+    dht_conf_t *conf = NULL;
+    gf_loglevel_t loglevel = 0;
+    dict_t *link_xattr = NULL;
+    dict_t *dict = NULL;
+    dict_t *xattr_rsp = NULL;
+    struct iatt stbuf = {
+        0,
+    };
+
+    *fop_errno = EINVAL;
+
+    GF_VALIDATE_OR_GOTO("defrag", loc, out);
+    GF_VALIDATE_OR_GOTO("defrag", loc->name, out);
+    GF_VALIDATE_OR_GOTO("defrag", this, out);
+    GF_VALIDATE_OR_GOTO("defrag", this->private, out);
+
+    conf = this->private;
+
+    if (gf_uuid_is_null(loc->pargfid)) {
+        gf_msg("", GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed :"
+               "loc->pargfid is NULL for %s",
+               loc->path);
         *fop_errno = EINVAL;
+        ret = -1;
+        goto out;
+    }
+
+    if (gf_uuid_is_null(loc->gfid)) {
+        gf_msg("", GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed :"
+               "loc->gfid is NULL for %s",
+               loc->path);
+        *fop_errno = EINVAL;
+        ret = -1;
+        goto out;
+    }
 
-        GF_VALIDATE_OR_GOTO ("defrag", loc, out);
-        GF_VALIDATE_OR_GOTO ("defrag", loc->name, out);
-        GF_VALIDATE_OR_GOTO ("defrag", this, out);
-        GF_VALIDATE_OR_GOTO ("defrag", this->private, out);
-
-        conf = this->private;
-
-        if (gf_uuid_is_null (loc->pargfid)) {
-                gf_msg ("", GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed :"
-                        "loc->pargfid is NULL for %s", loc->path);
-                *fop_errno = EINVAL;
-                ret = -1;
-                goto out;
-        }
-
-        if (gf_uuid_is_null (loc->gfid)) {
-                gf_msg ("", GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed :"
-                        "loc->gfid is NULL for %s", loc->path);
-                *fop_errno = EINVAL;
-                ret = -1;
-                goto out;
-        }
-
-        link_xattr = dict_new ();
-        if (!link_xattr) {
-                ret = -1;
-                *fop_errno = ENOMEM;
-                goto out;
-        }
-
-        /*
-          Parallel migration can lead to migration of the hard link multiple
-          times which can lead to data loss. Hence, adding a fresh lookup to
-          decide whether migration is required or not.
-
-          Elaborating the scenario for let say 10 hardlinks [link{1..10}]:
-              Let say the first hard link "link1"  does the setxattr of the
-          new hashed subvolume info on the cached file. As there are multiple
-          threads working, we might have already all the links created on the
-          new hashed by the time we reach hardlink let say link5. Now the
-          number of links on hashed is equal to that of cached. Hence, file
-          migration will happen for link6.
-
-                 Cached                                 Hashed
-          --------T link6                        rwxrwxrwx   link6
-
-          Now post above state all the link file on the cached will be zero
-          byte linkto files. Hence, if we still do migration for the following
-          files link{7..10}, we will end up migrating 0 data leading to data
-          loss.
-                Hence, a lookup can make sure whether we need to migrate the
-          file or not.
-        */
-
-        dict = dict_new ();
-        if (!dict) {
-                ret = -1;
-                *fop_errno = ENOMEM;
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
-                        "could not allocate memory for dict");
-                goto out;
-        }
-
-        ret = dict_set_int32 (dict, conf->link_xattr_name, 256);
+    link_xattr = dict_new();
+    if (!link_xattr) {
+        ret = -1;
+        *fop_errno = ENOMEM;
+        goto out;
+    }
+
+    /*
+      Parallel migration can lead to migration of the hard link multiple
+      times which can lead to data loss. Hence, adding a fresh lookup to
+      decide whether migration is required or not.
+
+      Elaborating the scenario for let say 10 hardlinks [link{1..10}]:
+          Let say the first hard link "link1"  does the setxattr of the
+      new hashed subvolume info on the cached file. As there are multiple
+      threads working, we might have already all the links created on the
+      new hashed by the time we reach hardlink let say link5. Now the
+      number of links on hashed is equal to that of cached. Hence, file
+      migration will happen for link6.
+
+             Cached                                 Hashed
+      --------T link6                        rwxrwxrwx   link6
+
+      Now post above state all the link file on the cached will be zero
+      byte linkto files. Hence, if we still do migration for the following
+      files link{7..10}, we will end up migrating 0 data leading to data
+      loss.
+            Hence, a lookup can make sure whether we need to migrate the
+      file or not.
+    */
+
+    dict = dict_new();
+    if (!dict) {
+        ret = -1;
+        *fop_errno = ENOMEM;
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "could not allocate memory for dict");
+        goto out;
+    }
+
+    ret = dict_set_int32(dict, conf->link_xattr_name, 256);
+    if (ret) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:"
+               "%s: failed to set 'linkto' key in dict",
+               loc->path);
+        goto out;
+    }
+
+    ret = syncop_lookup(this, loc, &stbuf, NULL, dict, &xattr_rsp);
+    if (ret) {
+        /*Ignore ENOENT and ESTALE as file might have been
+          migrated already*/
+        if (-ret == ENOENT || -ret == ESTALE) {
+            ret = -2;
+            goto out;
+        }
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:%s lookup failed with ret = %d", loc->path,
+               ret);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    cached_subvol = dht_subvol_get_cached(this, loc->inode);
+    if (!cached_subvol) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed :"
+               "Failed to get cached subvol"
+               " for %s on %s",
+               loc->name, this->name);
+        *fop_errno = EINVAL;
+        ret = -1;
+        goto out;
+    }
+
+    hashed_subvol = dht_subvol_get_hashed(this, loc);
+    if (!hashed_subvol) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed :"
+               "Failed to get hashed subvol"
+               " for %s on %s",
+               loc->name, this->name);
+        *fop_errno = EINVAL;
+        ret = -1;
+        goto out;
+    }
+
+    /* Hardlink migration happens only with remove-brick. So this condition will
+     * be true only when the migration has happened. In case hardlinks are
+     * migrated for rebalance case, remove this check. Having this check here
+     * avoid redundant calls below*/
+    if (hashed_subvol == cached_subvol) {
+        ret = -2;
+        goto out;
+    }
+
+    gf_log(this->name, GF_LOG_INFO,
+           "Attempting to migrate hardlink %s "
+           "with gfid %s from %s -> %s",
+           loc->name, uuid_utoa(loc->gfid), cached_subvol->name,
+           hashed_subvol->name);
+
+    data = dict_get(xattr_rsp, conf->link_xattr_name);
+    /* set linkto on cached -> hashed if not present, else link it */
+    if (!data) {
+        ret = dict_set_str(link_xattr, conf->link_xattr_name,
+                           hashed_subvol->name);
         if (ret) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:"
-                        "%s: failed to set 'linkto' key in dict", loc->path);
-                goto out;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed :"
+                   "Failed to set dictionary value:"
+                   " key = %s for %s",
+                   conf->link_xattr_name, loc->name);
+            *fop_errno = ENOMEM;
+            ret = -1;
+            goto out;
         }
 
-        ret = syncop_lookup (this, loc, &stbuf, NULL, dict, &xattr_rsp);
+        ret = syncop_setxattr(cached_subvol, loc, link_xattr, 0, NULL, NULL);
         if (ret) {
-                /*Ignore ENOENT and ESTALE as file might have been
-                  migrated already*/
-                if (-ret == ENOENT || -ret == ESTALE) {
-                        ret = -2;
-                        goto out;
-                }
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:%s lookup failed with ret = %d",
-                        loc->path, ret);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
-
-        cached_subvol = dht_subvol_get_cached (this, loc->inode);
-        if (!cached_subvol) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed :"
-                        "Failed to get cached subvol"
-                        " for %s on %s", loc->name, this->name);
-                *fop_errno = EINVAL;
-                ret = -1;
-                goto out;
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed :"
+                   "Linkto setxattr failed %s -> %s",
+                   cached_subvol->name, loc->name);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
         }
 
-        hashed_subvol = dht_subvol_get_hashed (this, loc);
-        if (!hashed_subvol) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed :"
-                        "Failed to get hashed subvol"
-                        " for %s on %s", loc->name, this->name);
-                *fop_errno = EINVAL;
-                ret = -1;
-                goto out;
-        }
-
-        /* Hardlink migration happens only with remove-brick. So this condition will
-         * be true only when the migration has happened. In case hardlinks are migrated
-         * for rebalance case, remove this check. Having this check here avoid redundant
-         * calls below*/
-        if (hashed_subvol == cached_subvol) {
-                ret = -2;
-                goto out;
-        }
-
-        gf_log (this->name, GF_LOG_INFO, "Attempting to migrate hardlink %s "
-                "with gfid %s from %s -> %s", loc->name, uuid_utoa (loc->gfid),
-                cached_subvol->name, hashed_subvol->name);
-
-        data = dict_get (xattr_rsp, conf->link_xattr_name);
-        /* set linkto on cached -> hashed if not present, else link it */
-        if (!data) {
-                ret = dict_set_str (link_xattr, conf->link_xattr_name,
-                                    hashed_subvol->name);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed :"
-                                "Failed to set dictionary value:"
-                                " key = %s for %s",
-                                conf->link_xattr_name, loc->name);
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = syncop_setxattr (cached_subvol, loc, link_xattr, 0, NULL,
-                                       NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed :"
-                                "Linkto setxattr failed %s -> %s",
-                                cached_subvol->name,
-                                loc->name);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
+        gf_msg_debug(this->name, 0,
+                     "hardlink target subvol created on %s "
+                     ",cached %s, file %s",
+                     hashed_subvol->name, cached_subvol->name, loc->path);
 
-                gf_msg_debug (this->name, 0, "hardlink target subvol created on %s "
-                              ",cached %s, file %s",
-                              hashed_subvol->name, cached_subvol->name, loc->path);
-
-                ret = -2;
-                goto out;
+        ret = -2;
+        goto out;
+    } else {
+        linkto_subvol = dht_linkfile_subvol(this, NULL, NULL, xattr_rsp);
+        if (!linkto_subvol) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SUBVOL_ERROR,
+                   "Failed to get "
+                   "linkto subvol for %s",
+                   loc->name);
         } else {
-                linkto_subvol = dht_linkfile_subvol (this, NULL, NULL, xattr_rsp);
-                if (!linkto_subvol) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_SUBVOL_ERROR,
-                                "Failed to get "
-                                "linkto subvol for %s", loc->name);
-                } else {
-                        hashed_subvol = linkto_subvol;
-                }
-
-                ret = syncop_link (hashed_subvol, loc, loc, &iatt, NULL, NULL);
-                if  (ret) {
-                        op_errno = -ret;
-                        ret = -1;
-
-                        loglevel = (op_errno == EEXIST) ? GF_LOG_DEBUG : \
-                                    GF_LOG_ERROR;
-                        gf_msg (this->name, loglevel, op_errno,
-                                DHT_MSG_MIGRATE_HARDLINK_FILE_FAILED,
-                                "link of %s -> %s"
-                                " failed on  subvol %s", loc->name,
-                                uuid_utoa(loc->gfid),
-                                hashed_subvol->name);
-                        if (op_errno != EEXIST) {
-                                *fop_errno = op_errno;
-                                goto out;
-                        }
-                } else {
-                        gf_msg_debug (this->name, 0, "syncop_link successful for"
-                                      " hardlink %s on subvol %s, cached %s", loc->path,
-                                      hashed_subvol->name, cached_subvol->name);
-
-                }
+            hashed_subvol = linkto_subvol;
         }
 
-        ret = syncop_lookup (hashed_subvol, loc, &iatt, NULL, NULL, NULL);
+        ret = syncop_link(hashed_subvol, loc, loc, &iatt, NULL, NULL);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed :Failed lookup %s on %s ",
-                        loc->name, hashed_subvol->name);
-
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
+            op_errno = -ret;
+            ret = -1;
+
+            loglevel = (op_errno == EEXIST) ? GF_LOG_DEBUG : GF_LOG_ERROR;
+            gf_msg(this->name, loglevel, op_errno,
+                   DHT_MSG_MIGRATE_HARDLINK_FILE_FAILED,
+                   "link of %s -> %s"
+                   " failed on  subvol %s",
+                   loc->name, uuid_utoa(loc->gfid), hashed_subvol->name);
+            if (op_errno != EEXIST) {
+                *fop_errno = op_errno;
+                goto out;
+            }
+        } else {
+            gf_msg_debug(this->name, 0,
+                         "syncop_link successful for"
+                         " hardlink %s on subvol %s, cached %s",
+                         loc->path, hashed_subvol->name, cached_subvol->name);
         }
+    }
 
-        /* There is a race where on the target subvol for the hardlink
-         * (note: hash subvol for the hardlink might differ from this), some
-         * other client(non-rebalance) would have created a linkto file for that
-         * hardlink as part of lookup. So let say there are 10 hardlinks, on the
-         * 5th hardlink it self the hardlinks might have migrated. Now for
-         * (6..10th) hardlinks the cached and target would be same as the file
-         * has already migrated. Hence this check is needed  */
-        if (cached_subvol == hashed_subvol) {
-                gf_msg_debug (this->name, 0, "source %s and destination %s "
-                             "for hardlink %s are same", cached_subvol->name,
-                             hashed_subvol->name, loc->path);
-                ret = -2;
-                goto out;
-        }
+    ret = syncop_lookup(hashed_subvol, loc, &iatt, NULL, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed :Failed lookup %s on %s ", loc->name,
+               hashed_subvol->name);
 
-        if (iatt.ia_nlink == stbuf.ia_nlink) {
-                ret = dht_migrate_file (this, loc, cached_subvol, hashed_subvol,
-                                        GF_DHT_MIGRATE_HARDLINK_IN_PROGRESS,
-                                        fop_errno);
-                if (ret) {
-                        goto out;
-                }
-        }
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    /* There is a race where on the target subvol for the hardlink
+     * (note: hash subvol for the hardlink might differ from this), some
+     * other client(non-rebalance) would have created a linkto file for that
+     * hardlink as part of lookup. So let say there are 10 hardlinks, on the
+     * 5th hardlink it self the hardlinks might have migrated. Now for
+     * (6..10th) hardlinks the cached and target would be same as the file
+     * has already migrated. Hence this check is needed  */
+    if (cached_subvol == hashed_subvol) {
+        gf_msg_debug(this->name, 0,
+                     "source %s and destination %s "
+                     "for hardlink %s are same",
+                     cached_subvol->name, hashed_subvol->name, loc->path);
         ret = -2;
+        goto out;
+    }
+
+    if (iatt.ia_nlink == stbuf.ia_nlink) {
+        ret = dht_migrate_file(this, loc, cached_subvol, hashed_subvol,
+                               GF_DHT_MIGRATE_HARDLINK_IN_PROGRESS, fop_errno);
+        if (ret) {
+            goto out;
+        }
+    }
+    ret = -2;
 out:
-        if (link_xattr)
-                dict_unref (link_xattr);
+    if (link_xattr)
+        dict_unref(link_xattr);
 
-        if (xattr_rsp)
-                dict_unref (xattr_rsp);
+    if (xattr_rsp)
+        dict_unref(xattr_rsp);
 
-        if (dict)
-                dict_unref (dict);
+    if (dict)
+        dict_unref(dict);
 
-        return ret;
+    return ret;
 }
 
-
-
 static int
-__check_file_has_hardlink (xlator_t *this, loc_t *loc,
-                           struct iatt *stbuf, dict_t *xattrs, int flags,
-                           gf_defrag_info_t *defrag, dht_conf_t *conf, int *fop_errno)
+__check_file_has_hardlink(xlator_t *this, loc_t *loc, struct iatt *stbuf,
+                          dict_t *xattrs, int flags, gf_defrag_info_t *defrag,
+                          dht_conf_t *conf, int *fop_errno)
 {
-       int ret = 0;
+    int ret = 0;
 
-       if (flags == GF_DHT_MIGRATE_HARDLINK_IN_PROGRESS) {
-                ret = 0;
-                return ret;
-       }
-       if (stbuf->ia_nlink > 1) {
-                /* support for decomission */
-                if (flags == GF_DHT_MIGRATE_HARDLINK) {
-                        synclock_lock (&conf->link_lock);
-                        ret = gf_defrag_handle_hardlink
-                                (this, loc, fop_errno);
-                        synclock_unlock (&conf->link_lock);
-                        /*
-                        Returning zero will force the file to be remigrated.
-                        Checkout gf_defrag_handle_hardlink for more information.
-                        */
-                        if (ret && ret != -2) {
-                                gf_msg (this->name, GF_LOG_WARNING, 0,
-                                        DHT_MSG_MIGRATE_FILE_FAILED,
-                                        "Migrate file failed:"
-                                        "%s: failed to migrate file with link",
-                                        loc->path);
-                        }
-                } else {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migration skipped for:"
-                                "%s: file has hardlinks", loc->path);
-                        *fop_errno = ENOTSUP;
-                        ret = 1;
-                }
-       }
+    if (flags == GF_DHT_MIGRATE_HARDLINK_IN_PROGRESS) {
+        ret = 0;
+        return ret;
+    }
+    if (stbuf->ia_nlink > 1) {
+        /* support for decomission */
+        if (flags == GF_DHT_MIGRATE_HARDLINK) {
+            synclock_lock(&conf->link_lock);
+            ret = gf_defrag_handle_hardlink(this, loc, fop_errno);
+            synclock_unlock(&conf->link_lock);
+            /*
+            Returning zero will force the file to be remigrated.
+            Checkout gf_defrag_handle_hardlink for more information.
+            */
+            if (ret && ret != -2) {
+                gf_msg(this->name, GF_LOG_WARNING, 0,
+                       DHT_MSG_MIGRATE_FILE_FAILED,
+                       "Migrate file failed:"
+                       "%s: failed to migrate file with link",
+                       loc->path);
+            }
+        } else {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migration skipped for:"
+                   "%s: file has hardlinks",
+                   loc->path);
+            *fop_errno = ENOTSUP;
+            ret = 1;
+        }
+    }
 
-       return ret;
+    return ret;
 }
 
-
 /*
      return values
      0 : File will be migrated
@@ -620,964 +600,911 @@ __check_file_has_hardlink (xlator_t *this, loc_t *loc,
     -1 : failure
 */
 static int
-__is_file_migratable (xlator_t *this, loc_t *loc,
-                      struct iatt *stbuf, dict_t *xattrs, int flags,
-                      gf_defrag_info_t *defrag, dht_conf_t *conf,
-                      int *fop_errno)
+__is_file_migratable(xlator_t *this, loc_t *loc, struct iatt *stbuf,
+                     dict_t *xattrs, int flags, gf_defrag_info_t *defrag,
+                     dht_conf_t *conf, int *fop_errno)
 {
-        int ret = -1;
-        int lock_count = 0;
-
-        if (IA_ISDIR (stbuf->ia_type)) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:"
-                        "%s: migrate-file called on directory", loc->path);
-                *fop_errno = EISDIR;
-                ret = -1;
-                goto out;
-        }
-
-        if (!conf->lock_migration_enabled) {
-                ret = dict_get_int32 (xattrs, GLUSTERFS_POSIXLK_COUNT,
-                                      &lock_count);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed:"
-                                "%s: Unable to get lock count for file",
-                                loc->path);
-                        *fop_errno = EINVAL;
-                        ret = -1;
-                        goto out;
-                }
-
-                if (lock_count) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed: %s: File has locks."
-                                " Skipping file migration", loc->path);
-                        *fop_errno = ENOTSUP;
-                        ret = 1;
-                        goto out;
-                }
-        }
+    int ret = -1;
+    int lock_count = 0;
+
+    if (IA_ISDIR(stbuf->ia_type)) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:"
+               "%s: migrate-file called on directory",
+               loc->path);
+        *fop_errno = EISDIR;
+        ret = -1;
+        goto out;
+    }
 
-        /* Check if file has hardlink*/
-        ret = __check_file_has_hardlink (this, loc, stbuf, xattrs,
-                                         flags, defrag, conf, fop_errno);
+    if (!conf->lock_migration_enabled) {
+        ret = dict_get_int32(xattrs, GLUSTERFS_POSIXLK_COUNT, &lock_count);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed:"
+                   "%s: Unable to get lock count for file",
+                   loc->path);
+            *fop_errno = EINVAL;
+            ret = -1;
+            goto out;
+        }
+
+        if (lock_count) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed: %s: File has locks."
+                   " Skipping file migration",
+                   loc->path);
+            *fop_errno = ENOTSUP;
+            ret = 1;
+            goto out;
+        }
+    }
+
+    /* Check if file has hardlink*/
+    ret = __check_file_has_hardlink(this, loc, stbuf, xattrs, flags, defrag,
+                                    conf, fop_errno);
 out:
-        return ret;
+    return ret;
 }
 
-
 static int
-__dht_rebalance_create_dst_file (xlator_t *this, xlator_t *to, xlator_t *from,
-                                 loc_t *loc, struct iatt *stbuf, fd_t **dst_fd,
-                                 int *fop_errno)
+__dht_rebalance_create_dst_file(xlator_t *this, xlator_t *to, xlator_t *from,
+                                loc_t *loc, struct iatt *stbuf, fd_t **dst_fd,
+                                int *fop_errno)
 {
-        int          ret  = -1;
-        int          ret2 = -1;
-        fd_t        *fd   = NULL;
-        struct iatt  new_stbuf = {0,};
-        struct iatt  check_stbuf= {0,};
-        dht_conf_t  *conf = NULL;
-        dict_t      *dict = NULL;
-        dict_t      *xdata = NULL;
-
-        conf = this->private;
+    int ret = -1;
+    int ret2 = -1;
+    fd_t *fd = NULL;
+    struct iatt new_stbuf = {
+        0,
+    };
+    struct iatt check_stbuf = {
+        0,
+    };
+    dht_conf_t *conf = NULL;
+    dict_t *dict = NULL;
+    dict_t *xdata = NULL;
+
+    conf = this->private;
+
+    dict = dict_new();
+    if (!dict) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "dictionary allocation failed for"
+               "path:%s",
+               loc->path);
+        goto out;
+    }
+    ret = dict_set_gfuuid(dict, "gfid-req", stbuf->ia_gfid, true);
+    if (ret) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "%s: failed to set dictionary value: key = gfid-req", loc->path);
+        goto out;
+    }
+
+    ret = dict_set_str(dict, conf->link_xattr_name, from->name);
+    if (ret) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "%s: failed to set dictionary value: key = %s ", loc->path,
+               conf->link_xattr_name);
+        goto out;
+    }
+
+    fd = fd_create(loc->inode, DHT_REBALANCE_PID);
+    if (!fd) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: fd create failed (destination)", loc->path);
+        goto out;
+    }
 
-        dict = dict_new ();
-        if (!dict) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_NO_MEMORY, "dictionary allocation failed for"
-                        "path:%s", loc->path);
-                goto out;
-        }
-        ret = dict_set_gfuuid (dict, "gfid-req", stbuf->ia_gfid, true);
-        if (ret) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "%s: failed to set dictionary value: key = gfid-req",
-                        loc->path);
-                goto out;
+    if (!!dht_is_tier_xlator(this)) {
+        xdata = dict_new();
+        if (!xdata) {
+            *fop_errno = ENOMEM;
+            ret = -1;
+            gf_msg(this->name, GF_LOG_ERROR, ENOMEM,
+                   DHT_MSG_MIGRATE_FILE_FAILED, "%s: dict_new failed)",
+                   loc->path);
+            goto out;
         }
 
-        ret = dict_set_str (dict, conf->link_xattr_name, from->name);
+        ret = dict_set_int32(xdata, GF_CLEAN_WRITE_PROTECTION, 1);
         if (ret) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "%s: failed to set dictionary value: key = %s ",
-                        loc->path, conf->link_xattr_name);
-                goto out;
-        }
-
-        fd = fd_create (loc->inode, DHT_REBALANCE_PID);
-        if (!fd) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: fd create failed (destination)",
-                        loc->path);
-                goto out;
-        }
-
-        if (!!dht_is_tier_xlator (this)) {
-                xdata = dict_new ();
-                if (!xdata) {
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: dict_new failed)",
-                                loc->path);
-                        goto out;
-                }
-
-                ret = dict_set_int32 (xdata, GF_CLEAN_WRITE_PROTECTION, 1);
-                if (ret) {
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "%s: failed to set dictionary value: key = %s ",
-                                loc->path, GF_CLEAN_WRITE_PROTECTION);
-                        goto out;
-                }
-        }
-
-        ret = syncop_lookup (to, loc, &new_stbuf, NULL, xdata, NULL);
-        if (!ret) {
-                /* File exits in the destination, check if gfid matches */
-                if (gf_uuid_compare (stbuf->ia_gfid, new_stbuf.ia_gfid) != 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_GFID_MISMATCH,
-                                "file %s exists in %s with different gfid",
-                                loc->path, to->name);
-                        *fop_errno = EINVAL;
-                        ret = -1;
-                        goto out;
-                }
-        }
-        if ((ret < 0) && (-ret != ENOENT)) {
-                /* File exists in destination, but not accessible */
-                gf_msg (THIS->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: failed to lookup file",
-                        loc->path);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
-
-        /* Create the destination with LINKFILE mode, and linkto xattr,
-           if the linkfile already exists, just open the file */
-        if (!ret) {
-                /*
-                 * File already present, just open the file.
-                 */
-                ret = syncop_open (to, loc, O_RDWR, fd, NULL, NULL);
-                 if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "failed to open %s on %s",
-                                loc->path, to->name);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                 }
-        } else {
-                ret = syncop_create (to, loc, O_RDWR, DHT_LINKFILE_MODE, fd,
-                                     &new_stbuf, dict, NULL);
-                 if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "failed to create %s on %s",
-                                loc->path, to->name);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
-
-        }
-
-        fd_bind (fd);
+            *fop_errno = ENOMEM;
+            ret = -1;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "%s: failed to set dictionary value: key = %s ", loc->path,
+                   GF_CLEAN_WRITE_PROTECTION);
+            goto out;
+        }
+    }
+
+    ret = syncop_lookup(to, loc, &new_stbuf, NULL, xdata, NULL);
+    if (!ret) {
+        /* File exits in the destination, check if gfid matches */
+        if (gf_uuid_compare(stbuf->ia_gfid, new_stbuf.ia_gfid) != 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_GFID_MISMATCH,
+                   "file %s exists in %s with different gfid", loc->path,
+                   to->name);
+            *fop_errno = EINVAL;
+            ret = -1;
+            goto out;
+        }
+    }
+    if ((ret < 0) && (-ret != ENOENT)) {
+        /* File exists in destination, but not accessible */
+        gf_msg(THIS->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: failed to lookup file", loc->path);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
 
-        /*Reason of doing lookup after create again:
-         *In the create, there is some time-gap between opening fd at the
-         *server (posix_layer) and binding it in server (incrementing fd count),
-         *so if in that time-gap, if other process sends unlink considering it
-         *as a linkto file, because inode->fd count will be 0, so file will be
-         *unlinked at the backend. And because further operations are performed
-         *on fd, so though migration will be done but will end with no file
-         *at  the backend.
+    /* Create the destination with LINKFILE mode, and linkto xattr,
+       if the linkfile already exists, just open the file */
+    if (!ret) {
+        /*
+         * File already present, just open the file.
          */
-
-        ret = syncop_lookup (to, loc, &check_stbuf, NULL, NULL, NULL);
-        if (!ret) {
-
-                if (gf_uuid_compare (stbuf->ia_gfid, check_stbuf.ia_gfid) != 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_GFID_MISMATCH,
-                                "file %s exists in %s with different gfid,"
-                                "found in lookup after create",
-                                loc->path, to->name);
-                        *fop_errno = EINVAL;
-                        ret = -1;
-                        goto out;
+        ret = syncop_open(to, loc, O_RDWR, fd, NULL, NULL);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "failed to open %s on %s", loc->path, to->name);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
+        }
+    } else {
+        ret = syncop_create(to, loc, O_RDWR, DHT_LINKFILE_MODE, fd, &new_stbuf,
+                            dict, NULL);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "failed to create %s on %s", loc->path, to->name);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
+        }
+    }
+
+    fd_bind(fd);
+
+    /*Reason of doing lookup after create again:
+     *In the create, there is some time-gap between opening fd at the
+     *server (posix_layer) and binding it in server (incrementing fd count),
+     *so if in that time-gap, if other process sends unlink considering it
+     *as a linkto file, because inode->fd count will be 0, so file will be
+     *unlinked at the backend. And because further operations are performed
+     *on fd, so though migration will be done but will end with no file
+     *at  the backend.
+     */
+
+    ret = syncop_lookup(to, loc, &check_stbuf, NULL, NULL, NULL);
+    if (!ret) {
+        if (gf_uuid_compare(stbuf->ia_gfid, check_stbuf.ia_gfid) != 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_GFID_MISMATCH,
+                   "file %s exists in %s with different gfid,"
+                   "found in lookup after create",
+                   loc->path, to->name);
+            *fop_errno = EINVAL;
+            ret = -1;
+            goto out;
+        }
+    }
+
+    if (-ret == ENOENT) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: file does not exist"
+               "on %s",
+               loc->path, to->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    ret = syncop_fsetattr(to, fd, stbuf, (GF_SET_ATTR_UID | GF_SET_ATTR_GID),
+                          NULL, NULL, NULL, NULL);
+    if (ret < 0) {
+        *fop_errno = -ret;
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "chown failed for %s on %s", loc->path, to->name);
+    }
+
+    /* No need to bother about 0 byte size files */
+    if (stbuf->ia_size > 0) {
+        if (conf->use_fallocate) {
+            ret = syncop_fallocate(to, fd, 0, 0, stbuf->ia_size, NULL, NULL);
+            if (ret < 0) {
+                if (ret == -EOPNOTSUPP || ret == -EINVAL || ret == -ENOSYS) {
+                    conf->use_fallocate = _gf_false;
+                } else {
+                    gf_msg(this->name, GF_LOG_ERROR, -ret,
+                           DHT_MSG_MIGRATE_FILE_FAILED,
+                           "fallocate failed for %s on %s", loc->path,
+                           to->name);
+
+                    *fop_errno = -ret;
+
+                    /* fallocate does not release the space
+                     * in some cases
+                     */
+                    ret2 = syncop_ftruncate(to, fd, 0, NULL, NULL, NULL, NULL);
+                    if (ret2 < 0) {
+                        gf_msg(this->name, GF_LOG_WARNING, -ret2,
+                               DHT_MSG_MIGRATE_FILE_FAILED,
+                               "ftruncate failed for "
+                               "%s on %s",
+                               loc->path, to->name);
+                    }
+                    goto out;
                 }
-
+            }
         }
 
-        if (-ret == ENOENT) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED, "%s: file does not exist"
-                        "on %s", loc->path, to->name);
+        if (!conf->use_fallocate) {
+            ret = syncop_ftruncate(to, fd, stbuf->ia_size, NULL, NULL, NULL,
+                                   NULL);
+            if (ret < 0) {
                 *fop_errno = -ret;
-                ret = -1;
-                goto out;
+                gf_msg(this->name, GF_LOG_WARNING, -ret,
+                       DHT_MSG_MIGRATE_FILE_FAILED,
+                       "ftruncate failed for %s on %s", loc->path, to->name);
+            }
         }
+    }
 
-        ret = syncop_fsetattr (to, fd, stbuf,
-                               (GF_SET_ATTR_UID | GF_SET_ATTR_GID),
-                                NULL, NULL, NULL, NULL);
-        if (ret < 0) {
-                *fop_errno = -ret;
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "chown failed for %s on %s",
-                        loc->path, to->name);
-        }
+    /* success */
+    ret = 0;
 
-        /* No need to bother about 0 byte size files */
-        if (stbuf->ia_size > 0) {
-                if (conf->use_fallocate) {
-                        ret = syncop_fallocate (to, fd, 0, 0, stbuf->ia_size,
-                                                NULL, NULL);
-                        if (ret < 0) {
-                                if (ret == -EOPNOTSUPP || ret == -EINVAL ||
-                                    ret == -ENOSYS) {
-                                        conf->use_fallocate = _gf_false;
-                                } else {
-                                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                                "fallocate failed for %s on %s",
-                                                loc->path, to->name);
-
-                                        *fop_errno = -ret;
-
-                                        /* fallocate does not release the space
-                                         * in some cases
-                                         */
-                                        ret2 = syncop_ftruncate (to, fd, 0,
-                                                                 NULL, NULL,
-                                                                 NULL, NULL);
-                                        if (ret2 < 0) {
-                                                gf_msg (this->name,
-                                                        GF_LOG_WARNING, -ret2,
-                                                        DHT_MSG_MIGRATE_FILE_FAILED,
-                                                        "ftruncate failed for "
-                                                        "%s on %s",
-                                                        loc->path, to->name);
-                                        }
-                                        goto out;
-                                }
-                        }
-                }
-
-                if (!conf->use_fallocate) {
-                        ret = syncop_ftruncate (to, fd, stbuf->ia_size, NULL,
-                                                NULL, NULL, NULL);
-                        if (ret < 0) {
-                                *fop_errno = -ret;
-                                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                        DHT_MSG_MIGRATE_FILE_FAILED,
-                                        "ftruncate failed for %s on %s",
-                                        loc->path, to->name);
-                        }
-                }
-        }
-
-        /* success */
-        ret = 0;
-
-        if (dst_fd)
-                *dst_fd = fd;
+    if (dst_fd)
+        *dst_fd = fd;
 
 out:
-        if (ret) {
-                if (fd) {
-                        fd_unref (fd);
-                }
+    if (ret) {
+        if (fd) {
+            fd_unref(fd);
         }
-        if (dict)
-                dict_unref (dict);
-
-        if (xdata)
-                dict_unref (dict);
+    }
+    if (dict)
+        dict_unref(dict);
 
+    if (xdata)
+        dict_unref(dict);
 
-        return ret;
+    return ret;
 }
 
 static int
-__dht_check_free_space (xlator_t *this, xlator_t *to, xlator_t *from,
-                        loc_t *loc, struct iatt *stbuf, int flag,
-                        dht_conf_t *conf, gf_boolean_t *target_changed,
-                        xlator_t **new_subvol, int *fop_errno)
+__dht_check_free_space(xlator_t *this, xlator_t *to, xlator_t *from, loc_t *loc,
+                       struct iatt *stbuf, int flag, dht_conf_t *conf,
+                       gf_boolean_t *target_changed, xlator_t **new_subvol,
+                       int *fop_errno)
 {
-        struct statvfs  src_statfs = {0,};
-        struct statvfs  dst_statfs = {0,};
-        int             ret        = -1;
-        dict_t         *xdata      = NULL;
-        dht_layout_t   *layout     = NULL;
-        uint64_t        src_statfs_blocks = 1;
-        uint64_t        dst_statfs_blocks = 1;
-        double          dst_post_availspacepercent = 0;
-        double          src_post_availspacepercent = 0;
-        uint64_t        file_blocks = 0;
-        uint64_t        src_total_blocks = 0;
-        uint64_t        dst_total_blocks = 0;
-
-        xdata = dict_new ();
-        if (!xdata) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_NO_MEMORY,
-                        "failed to allocate dictionary");
-                goto out;
-        }
-
-        ret = dict_set_int8 (xdata, GF_INTERNAL_IGNORE_DEEM_STATFS, 1);
-        if (ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "Failed to set "
-                        GF_INTERNAL_IGNORE_DEEM_STATFS" in dict");
-                ret = -1;
-                *fop_errno = ENOMEM;
-                goto out;
-        }
-
-        ret = syncop_statfs (from, loc, &src_statfs, xdata, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "failed to get statfs of %s on %s",
-                        loc->path, from->name);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
-
-        ret = syncop_statfs (to, loc, &dst_statfs, xdata, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "failed to get statfs of %s on %s",
-                        loc->path, to->name);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
-
-        gf_msg_debug (this->name, 0, "min_free_disk - %f , block available - "
-                      "%lu , block size - %lu ", conf->min_free_disk,
-                      dst_statfs.f_bavail, dst_statfs.f_bsize);
-
-        dst_statfs_blocks = dst_statfs.f_bavail *
-                            (dst_statfs.f_frsize /
-                            GF_DISK_SECTOR_SIZE);
-
-        src_statfs_blocks = src_statfs.f_bavail *
-                            (src_statfs.f_frsize /
-                            GF_DISK_SECTOR_SIZE);
-
-        dst_total_blocks = dst_statfs.f_blocks *
-                           (dst_statfs.f_frsize /
-                           GF_DISK_SECTOR_SIZE);
-
-        src_total_blocks = src_statfs.f_blocks *
-                           (src_statfs.f_frsize /
-                           GF_DISK_SECTOR_SIZE);
-
-        /* if force option is given, do not check for space @ dst.
-         * Check only if space is avail for the file */
-        if (flag != GF_DHT_MIGRATE_DATA)
-                goto check_avail_space;
-
-        /* Check:
-           During rebalance `migrate-data` - Destination subvol experiences
-           a `reduction` in 'blocks' of free space, at the same time source
-           subvol gains certain 'blocks' of free space. A valid check is
-           necessary here to avoid erroneous move to destination where
-           the space could be scantily available.
-           With heterogeneous brick support, an actual space comparison could
-           prevent any files being migrated to newly added bricks if they are
-           smaller then the free space available on the existing bricks.
-         */
-        if (stbuf) {
-                if (!conf->use_fallocate) {
-                        file_blocks = stbuf->ia_size + GF_DISK_SECTOR_SIZE - 1;
-                        file_blocks /= GF_DISK_SECTOR_SIZE;
-
-                        if (file_blocks >= dst_statfs_blocks) {
-                                dst_statfs_blocks = 0;
-                        } else {
-                                dst_statfs_blocks -= file_blocks;
-                        }
-                }
-
-                src_post_availspacepercent =
-                        ((src_statfs_blocks + file_blocks) * 100) / src_total_blocks;
-
-                dst_post_availspacepercent =
-                        (dst_statfs_blocks * 100) / dst_total_blocks;
-
-                if (dst_post_availspacepercent < src_post_availspacepercent) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "data movement of file "
-                                "{blocks:%"PRIu64" name:(%s)} would result in "
-                                "dst node (%s:%"PRIu64") having lower disk "
-                                "space than the source node (%s:%"PRIu64")"
-                                ".Skipping file.", stbuf->ia_blocks, loc->path,
-                                to->name, dst_statfs_blocks, from->name,
-                                src_statfs_blocks);
-
-                        /* this is not a 'failure', but we don't want to
-                           consider this as 'success' too :-/ */
-                        *fop_errno = ENOSPC;
-                        ret = 1;
-                        goto out;
-                }
-        }
+    struct statvfs src_statfs = {
+        0,
+    };
+    struct statvfs dst_statfs = {
+        0,
+    };
+    int ret = -1;
+    dict_t *xdata = NULL;
+    dht_layout_t *layout = NULL;
+    uint64_t src_statfs_blocks = 1;
+    uint64_t dst_statfs_blocks = 1;
+    double dst_post_availspacepercent = 0;
+    double src_post_availspacepercent = 0;
+    uint64_t file_blocks = 0;
+    uint64_t src_total_blocks = 0;
+    uint64_t dst_total_blocks = 0;
+
+    xdata = dict_new();
+    if (!xdata) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "failed to allocate dictionary");
+        goto out;
+    }
+
+    ret = dict_set_int8(xdata, GF_INTERNAL_IGNORE_DEEM_STATFS, 1);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR,
+               "Failed to set " GF_INTERNAL_IGNORE_DEEM_STATFS " in dict");
+        ret = -1;
+        *fop_errno = ENOMEM;
+        goto out;
+    }
+
+    ret = syncop_statfs(from, loc, &src_statfs, xdata, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "failed to get statfs of %s on %s", loc->path, from->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    ret = syncop_statfs(to, loc, &dst_statfs, xdata, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "failed to get statfs of %s on %s", loc->path, to->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    gf_msg_debug(this->name, 0,
+                 "min_free_disk - %f , block available - "
+                 "%lu , block size - %lu ",
+                 conf->min_free_disk, dst_statfs.f_bavail, dst_statfs.f_bsize);
+
+    dst_statfs_blocks = dst_statfs.f_bavail *
+                        (dst_statfs.f_frsize / GF_DISK_SECTOR_SIZE);
+
+    src_statfs_blocks = src_statfs.f_bavail *
+                        (src_statfs.f_frsize / GF_DISK_SECTOR_SIZE);
+
+    dst_total_blocks = dst_statfs.f_blocks *
+                       (dst_statfs.f_frsize / GF_DISK_SECTOR_SIZE);
+
+    src_total_blocks = src_statfs.f_blocks *
+                       (src_statfs.f_frsize / GF_DISK_SECTOR_SIZE);
+
+    /* if force option is given, do not check for space @ dst.
+     * Check only if space is avail for the file */
+    if (flag != GF_DHT_MIGRATE_DATA)
+        goto check_avail_space;
+
+    /* Check:
+       During rebalance `migrate-data` - Destination subvol experiences
+       a `reduction` in 'blocks' of free space, at the same time source
+       subvol gains certain 'blocks' of free space. A valid check is
+       necessary here to avoid erroneous move to destination where
+       the space could be scantily available.
+       With heterogeneous brick support, an actual space comparison could
+       prevent any files being migrated to newly added bricks if they are
+       smaller then the free space available on the existing bricks.
+     */
+    if (stbuf) {
+        if (!conf->use_fallocate) {
+            file_blocks = stbuf->ia_size + GF_DISK_SECTOR_SIZE - 1;
+            file_blocks /= GF_DISK_SECTOR_SIZE;
+
+            if (file_blocks >= dst_statfs_blocks) {
+                dst_statfs_blocks = 0;
+            } else {
+                dst_statfs_blocks -= file_blocks;
+            }
+        }
+
+        src_post_availspacepercent = ((src_statfs_blocks + file_blocks) * 100) /
+                                     src_total_blocks;
+
+        dst_post_availspacepercent = (dst_statfs_blocks * 100) /
+                                     dst_total_blocks;
+
+        if (dst_post_availspacepercent < src_post_availspacepercent) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "data movement of file "
+                   "{blocks:%" PRIu64
+                   " name:(%s)} would result in "
+                   "dst node (%s:%" PRIu64
+                   ") having lower disk "
+                   "space than the source node (%s:%" PRIu64
+                   ")"
+                   ".Skipping file.",
+                   stbuf->ia_blocks, loc->path, to->name, dst_statfs_blocks,
+                   from->name, src_statfs_blocks);
+
+            /* this is not a 'failure', but we don't want to
+               consider this as 'success' too :-/ */
+            *fop_errno = ENOSPC;
+            ret = 1;
+            goto out;
+        }
+    }
 
 check_avail_space:
-        if (conf->disk_unit == 'p' && dst_statfs.f_blocks) {
-                dst_post_availspacepercent =
-                        (dst_statfs_blocks * 100) / dst_total_blocks;
-
-                gf_msg_debug (this->name, 0, "file : %s, post_availspacepercent"
-                              " : %lf f_bavail : %lu min-free-disk: %lf",
-                              loc->path, dst_post_availspacepercent,
-                              dst_statfs.f_bavail, conf->min_free_disk);
-
-                if (dst_post_availspacepercent < conf->min_free_disk) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0, 0,
-                                "Write will cross min-free-disk for "
-                                "file - %s on subvol - %s. Looking "
-                                "for new subvol", loc->path, to->name);
-
-                        goto find_new_subvol;
-                } else {
-                        ret = 0;
-                        goto out;
-                }
+    if (conf->disk_unit == 'p' && dst_statfs.f_blocks) {
+        dst_post_availspacepercent = (dst_statfs_blocks * 100) /
+                                     dst_total_blocks;
+
+        gf_msg_debug(this->name, 0,
+                     "file : %s, post_availspacepercent"
+                     " : %lf f_bavail : %lu min-free-disk: %lf",
+                     loc->path, dst_post_availspacepercent, dst_statfs.f_bavail,
+                     conf->min_free_disk);
+
+        if (dst_post_availspacepercent < conf->min_free_disk) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, 0,
+                   "Write will cross min-free-disk for "
+                   "file - %s on subvol - %s. Looking "
+                   "for new subvol",
+                   loc->path, to->name);
+
+            goto find_new_subvol;
+        } else {
+            ret = 0;
+            goto out;
         }
+    }
 
-        if (conf->disk_unit != 'p') {
-                if ((dst_statfs_blocks * GF_DISK_SECTOR_SIZE) <
-                                                      conf->min_free_disk) {
-                        gf_msg_debug (this->name, 0, "file : %s,  destination "
-                                      "frsize: %lu f_bavail : %lu "
-                                      "min-free-disk: %lf", loc->path,
-                                      dst_statfs.f_frsize, dst_statfs.f_bavail,
-                                      conf->min_free_disk);
+    if (conf->disk_unit != 'p') {
+        if ((dst_statfs_blocks * GF_DISK_SECTOR_SIZE) < conf->min_free_disk) {
+            gf_msg_debug(this->name, 0,
+                         "file : %s,  destination "
+                         "frsize: %lu f_bavail : %lu "
+                         "min-free-disk: %lf",
+                         loc->path, dst_statfs.f_frsize, dst_statfs.f_bavail,
+                         conf->min_free_disk);
 
-                        gf_msg (this->name, GF_LOG_WARNING, 0, 0, "write will"
-                                " cross min-free-disk for file - %s on subvol -"
-                                " %s. looking for new subvol", loc->path,
-                                to->name);
+            gf_msg(this->name, GF_LOG_WARNING, 0, 0,
+                   "write will"
+                   " cross min-free-disk for file - %s on subvol -"
+                   " %s. looking for new subvol",
+                   loc->path, to->name);
 
-                        goto find_new_subvol;
+            goto find_new_subvol;
 
-                } else {
-                        ret = 0;
-                        goto out;
-                }
+        } else {
+            ret = 0;
+            goto out;
         }
+    }
 
 find_new_subvol:
-        layout = dht_layout_get (this, loc->parent);
-        if (!layout) {
-                gf_log (this->name, GF_LOG_ERROR, "Layout is NULL");
-                *fop_errno = EINVAL;
-                ret = -1;
-                goto out;
-        }
-
-        *new_subvol = dht_subvol_with_free_space_inodes (this, to, from, layout,
-                                                         stbuf->ia_size);
-        if ((!(*new_subvol)) || (*new_subvol == from)) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_SUBVOL_INSUFF_SPACE, "Could not find any subvol"
-                        " with space accommodating the file - %s. Consider "
-                        "adding bricks", loc->path);
-
-                *target_changed = _gf_false;
-                *fop_errno = ENOSPC;
-                ret = -1;
-        } else {
-                gf_msg (this->name, GF_LOG_INFO, 0, 0, "new target found - %s"
-                        " for file - %s", (*new_subvol)->name, loc->path);
-                *target_changed = _gf_true;
-                ret = 0;
-        }
+    layout = dht_layout_get(this, loc->parent);
+    if (!layout) {
+        gf_log(this->name, GF_LOG_ERROR, "Layout is NULL");
+        *fop_errno = EINVAL;
+        ret = -1;
+        goto out;
+    }
+
+    *new_subvol = dht_subvol_with_free_space_inodes(this, to, from, layout,
+                                                    stbuf->ia_size);
+    if ((!(*new_subvol)) || (*new_subvol == from)) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_SUBVOL_INSUFF_SPACE,
+               "Could not find any subvol"
+               " with space accommodating the file - %s. Consider "
+               "adding bricks",
+               loc->path);
+
+        *target_changed = _gf_false;
+        *fop_errno = ENOSPC;
+        ret = -1;
+    } else {
+        gf_msg(this->name, GF_LOG_INFO, 0, 0,
+               "new target found - %s"
+               " for file - %s",
+               (*new_subvol)->name, loc->path);
+        *target_changed = _gf_true;
+        ret = 0;
+    }
 
 out:
-        if (xdata)
-                dict_unref (xdata);
-        return ret;
+    if (xdata)
+        dict_unref(xdata);
+    return ret;
 }
 
 static int
-__dht_rebalance_migrate_data (xlator_t *this, gf_defrag_info_t *defrag,
-                              xlator_t *from, xlator_t *to, fd_t *src,
-                              fd_t *dst, uint64_t ia_size, int hole_exists,
-                              int *fop_errno)
+__dht_rebalance_migrate_data(xlator_t *this, gf_defrag_info_t *defrag,
+                             xlator_t *from, xlator_t *to, fd_t *src, fd_t *dst,
+                             uint64_t ia_size, int hole_exists, int *fop_errno)
 {
-        int            ret    = 0;
-        int            count  = 0;
-        off_t          offset = 0;
-        struct iovec  *vector = NULL;
-        struct iobref *iobref = NULL;
-        uint64_t       total  = 0;
-        size_t         read_size = 0;
-        dict_t        *xdata = NULL;
-        dht_conf_t    *conf  = NULL;
-
-        conf = this->private;
-        /* if file size is '0', no need to enter this loop */
-        while (total < ia_size) {
-                read_size = (((ia_size - total) > DHT_REBALANCE_BLKSIZE) ?
-                             DHT_REBALANCE_BLKSIZE : (ia_size - total));
-
-                ret = syncop_readv (from, src, read_size,
-                                    offset, 0, &vector, &count, &iobref, NULL,
-                                    NULL, NULL);
-                if (!ret || (ret < 0)) {
-                        *fop_errno = -ret;
-                        break;
-                }
-
-                if (hole_exists) {
-                        ret = dht_write_with_holes (to, dst, vector, count,
-                                                    ret, offset, iobref,
-                                                    fop_errno);
-                } else {
-                        if (!conf->force_migration &&
-                            !dht_is_tier_xlator (this)) {
-                                xdata = dict_new ();
-                                if (!xdata) {
-                                        gf_msg ("dht", GF_LOG_ERROR, 0,
-                                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                                "insufficient memory");
-                                        ret = -1;
-                                        *fop_errno = ENOMEM;
-                                        break;
-                                }
-
-                                /* Fail this write and abort rebalance if we
-                                 * detect a write from client since migration of
-                                 * this file started. This is done to avoid
-                                 * potential data corruption due to out of order
-                                 * writes from rebalance and client to the same
-                                 * region (as compared between src and dst
-                                 * files). See
-                                 * https://github.com/gluster/glusterfs/issues/308
-                                 * for more details.
-                                 */
-                                ret = dict_set_int32 (xdata,
-                                                      GF_AVOID_OVERWRITE, 1);
-                                if (ret) {
-                                        gf_msg ("dht", GF_LOG_ERROR, 0,
-                                                ENOMEM, "failed to set dict");
-                                        ret = -1;
-                                        *fop_errno = ENOMEM;
-                                        break;
-                                }
-
-                        }
-
-                        ret = syncop_writev (to, dst, vector, count,
-                                             offset, iobref, 0, NULL, NULL,
-                                             xdata, NULL);
-                        if (ret < 0) {
-                                *fop_errno = -ret;
-                        }
-                }
-
-                if ((defrag && defrag->cmd == GF_DEFRAG_CMD_START_TIER) &&
-                    (gf_defrag_get_pause_state (&defrag->tier_conf) != TIER_RUNNING)) {
-                        gf_msg ("tier", GF_LOG_INFO, 0,
-                                DHT_MSG_TIER_PAUSED,
-                                "Migrate file paused");
-                        ret = -1;
+    int ret = 0;
+    int count = 0;
+    off_t offset = 0;
+    struct iovec *vector = NULL;
+    struct iobref *iobref = NULL;
+    uint64_t total = 0;
+    size_t read_size = 0;
+    dict_t *xdata = NULL;
+    dht_conf_t *conf = NULL;
+
+    conf = this->private;
+    /* if file size is '0', no need to enter this loop */
+    while (total < ia_size) {
+        read_size = (((ia_size - total) > DHT_REBALANCE_BLKSIZE)
+                         ? DHT_REBALANCE_BLKSIZE
+                         : (ia_size - total));
+
+        ret = syncop_readv(from, src, read_size, offset, 0, &vector, &count,
+                           &iobref, NULL, NULL, NULL);
+        if (!ret || (ret < 0)) {
+            *fop_errno = -ret;
+            break;
+        }
+
+        if (hole_exists) {
+            ret = dht_write_with_holes(to, dst, vector, count, ret, offset,
+                                       iobref, fop_errno);
+        } else {
+            if (!conf->force_migration && !dht_is_tier_xlator(this)) {
+                xdata = dict_new();
+                if (!xdata) {
+                    gf_msg("dht", GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                           "insufficient memory");
+                    ret = -1;
+                    *fop_errno = ENOMEM;
+                    break;
                 }
 
-                if (ret < 0) {
-                        break;
+                /* Fail this write and abort rebalance if we
+                 * detect a write from client since migration of
+                 * this file started. This is done to avoid
+                 * potential data corruption due to out of order
+                 * writes from rebalance and client to the same
+                 * region (as compared between src and dst
+                 * files). See
+                 * https://github.com/gluster/glusterfs/issues/308
+                 * for more details.
+                 */
+                ret = dict_set_int32(xdata, GF_AVOID_OVERWRITE, 1);
+                if (ret) {
+                    gf_msg("dht", GF_LOG_ERROR, 0, ENOMEM,
+                           "failed to set dict");
+                    ret = -1;
+                    *fop_errno = ENOMEM;
+                    break;
                 }
+            }
 
-                offset += ret;
-                total += ret;
-
-                GF_FREE (vector);
-                if (iobref)
-                        iobref_unref (iobref);
-                iobref = NULL;
-                vector = NULL;
-        }
-        if (iobref)
-                iobref_unref (iobref);
-        GF_FREE (vector);
-
-        if (ret >= 0)
-                ret = 0;
-        else
-                ret = -1;
-
-        if (xdata) {
-                dict_unref (xdata);
+            ret = syncop_writev(to, dst, vector, count, offset, iobref, 0, NULL,
+                                NULL, xdata, NULL);
+            if (ret < 0) {
+                *fop_errno = -ret;
+            }
         }
 
-        return ret;
-}
-
-
-static int
-__dht_rebalance_open_src_file (xlator_t *this, xlator_t *from, xlator_t *to, loc_t *loc,
-                               struct iatt *stbuf, fd_t **src_fd,
-                               gf_boolean_t *clean_src, int *fop_errno)
-{
-
-        int          ret  = 0;
-        fd_t        *fd   = NULL;
-        dict_t      *dict = NULL;
-        struct iatt  iatt = {0,};
-        dht_conf_t  *conf = NULL;
-
-        conf = this->private;
-
-        *clean_src = _gf_false;
-
-        fd = fd_create (loc->inode, DHT_REBALANCE_PID);
-        if (!fd) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: fd create failed (source)", loc->path);
-                *fop_errno = ENOMEM;
-                ret = -1;
-                goto out;
+        if ((defrag && defrag->cmd == GF_DEFRAG_CMD_START_TIER) &&
+            (gf_defrag_get_pause_state(&defrag->tier_conf) != TIER_RUNNING)) {
+            gf_msg("tier", GF_LOG_INFO, 0, DHT_MSG_TIER_PAUSED,
+                   "Migrate file paused");
+            ret = -1;
         }
 
-        ret = syncop_open (from, loc, O_RDWR, fd, NULL, NULL);
         if (ret < 0) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "failed to open file %s on %s",
-                        loc->path, from->name);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
+            break;
         }
 
-        fd_bind (fd);
-
-        if (src_fd)
-                *src_fd = fd;
+        offset += ret;
+        total += ret;
 
+        GF_FREE(vector);
+        if (iobref)
+            iobref_unref(iobref);
+        iobref = NULL;
+        vector = NULL;
+    }
+    if (iobref)
+        iobref_unref(iobref);
+    GF_FREE(vector);
+
+    if (ret >= 0)
+        ret = 0;
+    else
         ret = -1;
-        dict = dict_new ();
-        if (!dict) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: Could not allocate memory for dict", loc->path);
-                *fop_errno = ENOMEM;
-                ret = -1;
-                goto out;
-        }
 
-        ret = dict_set_str (dict, conf->link_xattr_name, to->name);
-        if (ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "failed to set xattr in dict for %s (linkto:%s)",
-                        loc->path, to->name);
-                *fop_errno = ENOMEM;
-                ret = -1;
-                goto out;
-        }
+    if (xdata) {
+        dict_unref(xdata);
+    }
 
-        /* Once the migration starts, the source should have 'linkto' key set
-           to show which is the target, so other clients can work around it */
-        ret = syncop_setxattr (from, loc, dict, 0, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "failed to set xattr on %s in %s",
-                        loc->path, from->name);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
+    return ret;
+}
 
-        /* Reset source mode/xattr if migration fails*/
-        *clean_src = _gf_true;
+static int
+__dht_rebalance_open_src_file(xlator_t *this, xlator_t *from, xlator_t *to,
+                              loc_t *loc, struct iatt *stbuf, fd_t **src_fd,
+                              gf_boolean_t *clean_src, int *fop_errno)
+{
+    int ret = 0;
+    fd_t *fd = NULL;
+    dict_t *dict = NULL;
+    struct iatt iatt = {
+        0,
+    };
+    dht_conf_t *conf = NULL;
+
+    conf = this->private;
+
+    *clean_src = _gf_false;
+
+    fd = fd_create(loc->inode, DHT_REBALANCE_PID);
+    if (!fd) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: fd create failed (source)", loc->path);
+        *fop_errno = ENOMEM;
+        ret = -1;
+        goto out;
+    }
+
+    ret = syncop_open(from, loc, O_RDWR, fd, NULL, NULL);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "failed to open file %s on %s", loc->path, from->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
 
-        /* mode should be (+S+T) to indicate migration is in progress */
-        iatt.ia_prot = stbuf->ia_prot;
-        iatt.ia_type = stbuf->ia_type;
-        iatt.ia_prot.sticky = 1;
-        iatt.ia_prot.sgid = 1;
+    fd_bind(fd);
 
-        ret = syncop_setattr (from, loc, &iatt, GF_SET_ATTR_MODE, NULL, NULL,
-                              NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "failed to set mode on %s in %s",
-                        loc->path, from->name);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
+    if (src_fd)
+        *src_fd = fd;
 
-        /* success */
-        ret = 0;
+    ret = -1;
+    dict = dict_new();
+    if (!dict) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: Could not allocate memory for dict", loc->path);
+        *fop_errno = ENOMEM;
+        ret = -1;
+        goto out;
+    }
+
+    ret = dict_set_str(dict, conf->link_xattr_name, to->name);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR,
+               "failed to set xattr in dict for %s (linkto:%s)", loc->path,
+               to->name);
+        *fop_errno = ENOMEM;
+        ret = -1;
+        goto out;
+    }
+
+    /* Once the migration starts, the source should have 'linkto' key set
+       to show which is the target, so other clients can work around it */
+    ret = syncop_setxattr(from, loc, dict, 0, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "failed to set xattr on %s in %s", loc->path, from->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    /* Reset source mode/xattr if migration fails*/
+    *clean_src = _gf_true;
+
+    /* mode should be (+S+T) to indicate migration is in progress */
+    iatt.ia_prot = stbuf->ia_prot;
+    iatt.ia_type = stbuf->ia_type;
+    iatt.ia_prot.sticky = 1;
+    iatt.ia_prot.sgid = 1;
+
+    ret = syncop_setattr(from, loc, &iatt, GF_SET_ATTR_MODE, NULL, NULL, NULL,
+                         NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "failed to set mode on %s in %s", loc->path, from->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    /* success */
+    ret = 0;
 out:
-        if (dict)
-                dict_unref (dict);
+    if (dict)
+        dict_unref(dict);
 
-        return ret;
+    return ret;
 }
 
 int
-migrate_special_files (xlator_t *this, xlator_t *from, xlator_t *to, loc_t *loc,
-                       struct iatt *buf, int *fop_errno)
+migrate_special_files(xlator_t *this, xlator_t *from, xlator_t *to, loc_t *loc,
+                      struct iatt *buf, int *fop_errno)
 {
-        int          ret      = -1;
-        dict_t      *rsp_dict = NULL;
-        dict_t      *dict     = NULL;
-        char        *link     = NULL;
-        struct iatt  stbuf    = {0,};
-        dht_conf_t  *conf     = this->private;
-
-        dict = dict_new ();
-        if (!dict) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                goto out;
-        }
-        ret = dict_set_int32 (dict, conf->link_xattr_name, 256);
-        if (ret) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_log (this->name, GF_LOG_ERROR,
-                        "%s: failed to set 'linkto' key in dict", loc->path);
-                goto out;
-        }
-
-        /* check in the destination if the file is link file */
-        ret = syncop_lookup (to, loc, &stbuf, NULL, dict, &rsp_dict);
-        if ((ret < 0) && (-ret != ENOENT)) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: lookup failed",
-                        loc->path);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
-
-        /* we no more require this key */
-        dict_del (dict, conf->link_xattr_name);
-
-        /* file exists in target node, only if it is 'linkfile' its valid,
-           otherwise, error out */
-        if (!ret) {
-                if (!check_is_linkfile (loc->inode, &stbuf, rsp_dict,
-                                        conf->link_xattr_name)) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: file exists in destination", loc->path);
-                        *fop_errno = EINVAL;
-                        ret = -1;
-                        goto out;
-                }
-
-                /* as file is linkfile, delete it */
-                ret = syncop_unlink (to, loc, NULL, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: failed to delete the linkfile",
-                                loc->path);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
-        }
-
-        /* Set the gfid of the source file in dict */
-        ret = dict_set_gfuuid (dict, "gfid-req", buf->ia_gfid, true);
+    int ret = -1;
+    dict_t *rsp_dict = NULL;
+    dict_t *dict = NULL;
+    char *link = NULL;
+    struct iatt stbuf = {
+        0,
+    };
+    dht_conf_t *conf = this->private;
+
+    dict = dict_new();
+    if (!dict) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        goto out;
+    }
+    ret = dict_set_int32(dict, conf->link_xattr_name, 256);
+    if (ret) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_log(this->name, GF_LOG_ERROR,
+               "%s: failed to set 'linkto' key in dict", loc->path);
+        goto out;
+    }
+
+    /* check in the destination if the file is link file */
+    ret = syncop_lookup(to, loc, &stbuf, NULL, dict, &rsp_dict);
+    if ((ret < 0) && (-ret != ENOENT)) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: lookup failed", loc->path);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    /* we no more require this key */
+    dict_del(dict, conf->link_xattr_name);
+
+    /* file exists in target node, only if it is 'linkfile' its valid,
+       otherwise, error out */
+    if (!ret) {
+        if (!check_is_linkfile(loc->inode, &stbuf, rsp_dict,
+                               conf->link_xattr_name)) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: file exists in destination", loc->path);
+            *fop_errno = EINVAL;
+            ret = -1;
+            goto out;
+        }
+
+        /* as file is linkfile, delete it */
+        ret = syncop_unlink(to, loc, NULL, NULL);
         if (ret) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_log (this->name, GF_LOG_ERROR,
-                        "%s: failed to set gfid in dict for create", loc->path);
-                goto out;
-        }
-
-        /* Create the file in target */
-        if (IA_ISLNK (buf->ia_type)) {
-                /* Handle symlinks separately */
-                ret = syncop_readlink (from, loc, &link, buf->ia_size, NULL,
-                                       NULL);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: readlink on symlink failed",
-                                loc->path);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = syncop_symlink (to, loc, link, 0, dict, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: creating symlink failed",
-                                loc->path);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
-
-                goto done;
+            gf_msg(this->name, GF_LOG_WARNING, -ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: failed to delete the linkfile", loc->path);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
+        }
+    }
+
+    /* Set the gfid of the source file in dict */
+    ret = dict_set_gfuuid(dict, "gfid-req", buf->ia_gfid, true);
+    if (ret) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_log(this->name, GF_LOG_ERROR,
+               "%s: failed to set gfid in dict for create", loc->path);
+        goto out;
+    }
+
+    /* Create the file in target */
+    if (IA_ISLNK(buf->ia_type)) {
+        /* Handle symlinks separately */
+        ret = syncop_readlink(from, loc, &link, buf->ia_size, NULL, NULL);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_WARNING, -ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: readlink on symlink failed", loc->path);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
         }
 
-        ret = syncop_mknod (to, loc, st_mode_from_ia (buf->ia_prot,
-                                                      buf->ia_type),
-                            makedev (ia_major (buf->ia_rdev),
-                                     ia_minor (buf->ia_rdev)), 0, dict, NULL);
+        ret = syncop_symlink(to, loc, link, 0, dict, NULL);
         if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: mknod failed",
-                        loc->path);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
+            gf_msg(this->name, GF_LOG_WARNING, -ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED, "%s: creating symlink failed",
+                   loc->path);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
+        }
+
+        goto done;
+    }
+
+    ret = syncop_mknod(to, loc, st_mode_from_ia(buf->ia_prot, buf->ia_type),
+                       makedev(ia_major(buf->ia_rdev), ia_minor(buf->ia_rdev)),
+                       0, dict, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: mknod failed", loc->path);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
 
 done:
-        ret = syncop_setattr (to, loc, buf,
-                              (GF_SET_ATTR_MTIME |
-                               GF_SET_ATTR_UID | GF_SET_ATTR_GID |
-                               GF_SET_ATTR_MODE), NULL, NULL, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: failed to perform setattr on %s",
-                        loc->path, to->name);
-                *fop_errno = -ret;
-        }
-
-        ret = syncop_unlink (from, loc, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: unlink failed",
-                        loc->path);
-                *fop_errno = -ret;
-                ret = -1;
-        }
+    ret = syncop_setattr(to, loc, buf,
+                         (GF_SET_ATTR_MTIME | GF_SET_ATTR_UID |
+                          GF_SET_ATTR_GID | GF_SET_ATTR_MODE),
+                         NULL, NULL, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: failed to perform setattr on %s", loc->path, to->name);
+        *fop_errno = -ret;
+    }
+
+    ret = syncop_unlink(from, loc, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: unlink failed", loc->path);
+        *fop_errno = -ret;
+        ret = -1;
+    }
 
 out:
-        GF_FREE (link);
-        if (dict)
-                dict_unref (dict);
+    GF_FREE(link);
+    if (dict)
+        dict_unref(dict);
 
-        if (rsp_dict)
-                dict_unref (rsp_dict);
+    if (rsp_dict)
+        dict_unref(rsp_dict);
 
-        return ret;
+    return ret;
 }
 
 static int
-__dht_migration_cleanup_src_file (xlator_t *this, loc_t *loc, fd_t *fd,
-                                  xlator_t *from, ia_prot_t *src_ia_prot)
+__dht_migration_cleanup_src_file(xlator_t *this, loc_t *loc, fd_t *fd,
+                                 xlator_t *from, ia_prot_t *src_ia_prot)
 {
-        int ret                       = -1;
-        dht_conf_t     *conf          = NULL;
-        struct iatt     new_stbuf     = {0,};
-
-        if (!this || !fd || !from || !src_ia_prot) {
-                goto out;
-        }
-
-        conf = this->private;
-
-        /*Revert source mode and xattr changes*/
-        ret = syncop_fstat (from, fd, &new_stbuf, NULL, NULL);
-        if (ret < 0) {
-                /* Failed to get the stat info */
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file cleanup failed: failed to fstat "
-                        "file %s on %s ", loc->path, from->name);
-                ret = -1;
-                goto out;
-        }
-
-
-        /* Remove the sticky bit and sgid bit set, reset it to 0*/
-        if (!src_ia_prot->sticky)
-                new_stbuf.ia_prot.sticky = 0;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+    struct iatt new_stbuf = {
+        0,
+    };
+
+    if (!this || !fd || !from || !src_ia_prot) {
+        goto out;
+    }
+
+    conf = this->private;
+
+    /*Revert source mode and xattr changes*/
+    ret = syncop_fstat(from, fd, &new_stbuf, NULL, NULL);
+    if (ret < 0) {
+        /* Failed to get the stat info */
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file cleanup failed: failed to fstat "
+               "file %s on %s ",
+               loc->path, from->name);
+        ret = -1;
+        goto out;
+    }
 
-        if (!src_ia_prot->sgid)
-                new_stbuf.ia_prot.sgid = 0;
+    /* Remove the sticky bit and sgid bit set, reset it to 0*/
+    if (!src_ia_prot->sticky)
+        new_stbuf.ia_prot.sticky = 0;
 
-        ret = syncop_fsetattr (from, fd, &new_stbuf,
-                               (GF_SET_ATTR_GID | GF_SET_ATTR_MODE),
-                               NULL, NULL, NULL, NULL);
+    if (!src_ia_prot->sgid)
+        new_stbuf.ia_prot.sgid = 0;
 
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file cleanup failed:"
-                        "%s: failed to perform fsetattr on %s ",
-                        loc->path, from->name);
-                ret = -1;
-                goto out;
-        }
+    ret = syncop_fsetattr(from, fd, &new_stbuf,
+                          (GF_SET_ATTR_GID | GF_SET_ATTR_MODE), NULL, NULL,
+                          NULL, NULL);
 
-        ret = syncop_fremovexattr (from, fd, conf->link_xattr_name, 0, NULL);
-        if (ret) {
-                gf_log (this->name, GF_LOG_WARNING,
-                        "%s: failed to remove linkto xattr on %s (%s)",
-                        loc->path, from->name, strerror (-ret));
-                ret = -1;
-                goto out;
-        }
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file cleanup failed:"
+               "%s: failed to perform fsetattr on %s ",
+               loc->path, from->name);
+        ret = -1;
+        goto out;
+    }
+
+    ret = syncop_fremovexattr(from, fd, conf->link_xattr_name, 0, NULL);
+    if (ret) {
+        gf_log(this->name, GF_LOG_WARNING,
+               "%s: failed to remove linkto xattr on %s (%s)", loc->path,
+               from->name, strerror(-ret));
+        ret = -1;
+        goto out;
+    }
 
-        ret = 0;
+    ret = 0;
 
 out:
-        return ret;
+    return ret;
 }
 
-
-
 /*
   return values:
 
@@ -1586,1098 +1513,1078 @@ out:
     1 : not a failure, but we can't migrate data as of now
 */
 int
-dht_migrate_file (xlator_t *this, loc_t *loc, xlator_t *from, xlator_t *to,
-                  int flag, int *fop_errno)
+dht_migrate_file(xlator_t *this, loc_t *loc, xlator_t *from, xlator_t *to,
+                 int flag, int *fop_errno)
 {
-        int                     ret                     = -1;
-        struct iatt             new_stbuf               = {0,};
-        struct iatt             stbuf                   = {0,};
-        struct iatt             empty_iatt              = {0,};
-        ia_prot_t               src_ia_prot             = {0,};
-        fd_t                    *src_fd                 = NULL;
-        fd_t                    *dst_fd                 = NULL;
-        dict_t                  *dict                   = NULL;
-        dict_t                  *xattr                  = NULL;
-        dict_t                  *xattr_rsp              = NULL;
-        int                     file_has_holes          = 0;
-        dht_conf_t              *conf                   = this->private;
-        int                     rcvd_enoent_from_src    = 0;
-        struct gf_flock         flock                   = {0, };
-        struct gf_flock         plock                   = {0, };
-        loc_t                   tmp_loc                 = {0, };
-        loc_t                   parent_loc              = {0, };
-        gf_boolean_t            inodelk_locked          = _gf_false;
-        gf_boolean_t            entrylk_locked          = _gf_false;
-        gf_boolean_t            p_locked                = _gf_false;
-        int                     lk_ret                  = -1;
-        gf_defrag_info_t        *defrag                 =  NULL;
-        gf_boolean_t            clean_src               = _gf_false;
-        gf_boolean_t            clean_dst               = _gf_false;
-        int                     log_level               = GF_LOG_INFO;
-        gf_boolean_t            delete_src_linkto       = _gf_true;
-        lock_migration_info_t   locklist;
-        dict_t                  *meta_dict              = NULL;
-        gf_boolean_t            meta_locked             = _gf_false;
-        gf_boolean_t            target_changed          = _gf_false;
-        xlator_t                *new_target             = NULL;
-        xlator_t                *old_target             = NULL;
-        xlator_t                *hashed_subvol          = NULL;
-        fd_t                    *linkto_fd              = NULL;
-
-
-        if (from == to) {
-                gf_msg_debug (this->name, 0, "destination and source are same. file %s"
-                              " might have migrated already", loc->path);
-                ret = 0;
-                goto out;
-        }
+    int ret = -1;
+    struct iatt new_stbuf = {
+        0,
+    };
+    struct iatt stbuf = {
+        0,
+    };
+    struct iatt empty_iatt = {
+        0,
+    };
+    ia_prot_t src_ia_prot = {
+        0,
+    };
+    fd_t *src_fd = NULL;
+    fd_t *dst_fd = NULL;
+    dict_t *dict = NULL;
+    dict_t *xattr = NULL;
+    dict_t *xattr_rsp = NULL;
+    int file_has_holes = 0;
+    dht_conf_t *conf = this->private;
+    int rcvd_enoent_from_src = 0;
+    struct gf_flock flock = {
+        0,
+    };
+    struct gf_flock plock = {
+        0,
+    };
+    loc_t tmp_loc = {
+        0,
+    };
+    loc_t parent_loc = {
+        0,
+    };
+    gf_boolean_t inodelk_locked = _gf_false;
+    gf_boolean_t entrylk_locked = _gf_false;
+    gf_boolean_t p_locked = _gf_false;
+    int lk_ret = -1;
+    gf_defrag_info_t *defrag = NULL;
+    gf_boolean_t clean_src = _gf_false;
+    gf_boolean_t clean_dst = _gf_false;
+    int log_level = GF_LOG_INFO;
+    gf_boolean_t delete_src_linkto = _gf_true;
+    lock_migration_info_t locklist;
+    dict_t *meta_dict = NULL;
+    gf_boolean_t meta_locked = _gf_false;
+    gf_boolean_t target_changed = _gf_false;
+    xlator_t *new_target = NULL;
+    xlator_t *old_target = NULL;
+    xlator_t *hashed_subvol = NULL;
+    fd_t *linkto_fd = NULL;
+
+    if (from == to) {
+        gf_msg_debug(this->name, 0,
+                     "destination and source are same. file %s"
+                     " might have migrated already",
+                     loc->path);
+        ret = 0;
+        goto out;
+    }
 
-        /* If defrag is NULL, it should be assumed that migration is triggered
-         * from client */
-        defrag = conf->defrag;
+    /* If defrag is NULL, it should be assumed that migration is triggered
+     * from client */
+    defrag = conf->defrag;
 
-        /* migration of files from clients is restricted to non-tiered clients
-         * for now */
-        if (!defrag && dht_is_tier_xlator (this)) {
-                ret = ENOTSUP;
-                goto out;
-        }
+    /* migration of files from clients is restricted to non-tiered clients
+     * for now */
+    if (!defrag && dht_is_tier_xlator(this)) {
+        ret = ENOTSUP;
+        goto out;
+    }
 
-        if (defrag && defrag->tier_conf.is_tier)
-                log_level = GF_LOG_TRACE;
+    if (defrag && defrag->tier_conf.is_tier)
+        log_level = GF_LOG_TRACE;
 
-        gf_log (this->name,
-                log_level, "%s: attempting to move from %s to %s",
-                loc->path, from->name, to->name);
+    gf_log(this->name, log_level, "%s: attempting to move from %s to %s",
+           loc->path, from->name, to->name);
 
-        dict = dict_new ();
-        if (!dict) {
-                ret = -1;
-                *fop_errno = ENOMEM;
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
-                        "Could not allocate memory for dict");
-                goto out;
-        }
-        ret = dict_set_int32 (dict, conf->link_xattr_name, 256);
+    dict = dict_new();
+    if (!dict) {
+        ret = -1;
+        *fop_errno = ENOMEM;
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "Could not allocate memory for dict");
+        goto out;
+    }
+    ret = dict_set_int32(dict, conf->link_xattr_name, 256);
+    if (ret) {
+        *fop_errno = ENOMEM;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:"
+               "%s: failed to set 'linkto' key in dict",
+               loc->path);
+        goto out;
+    }
+
+    /* Do not migrate file in case lock migration is not enabled on the
+     * volume*/
+    if (!conf->lock_migration_enabled) {
+        ret = dict_set_int32(dict, GLUSTERFS_POSIXLK_COUNT, sizeof(int32_t));
         if (ret) {
-                *fop_errno = ENOMEM;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:"
-                        "%s: failed to set 'linkto' key in dict", loc->path);
-                goto out;
-        }
-
-        /* Do not migrate file in case lock migration is not enabled on the
-         * volume*/
-        if (!conf->lock_migration_enabled) {
-                ret = dict_set_int32 (dict,
-                                 GLUSTERFS_POSIXLK_COUNT, sizeof(int32_t));
-                if (ret) {
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed: %s: failed to "
-                                "set "GLUSTERFS_POSIXLK_COUNT" key in dict",
-                                loc->path);
-                        goto out;
-                }
-        } else {
-                gf_msg (this->name, GF_LOG_INFO, 0, 0, "locks will be migrated"
-                        " for file: %s", loc->path);
-        }
-
-        ret = dht_build_parent_loc (this, &parent_loc, loc, fop_errno);
-        if (ret < 0) {
-                ret = -1;
-                gf_msg (this->name, GF_LOG_WARNING, *fop_errno,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: failed to build parent loc, which is needed to "
-                        "acquire entrylk to synchronize with renames on this "
-                        "path. Skipping migration", loc->path);
-                goto out;
-        }
-
-        hashed_subvol = dht_subvol_get_hashed (this, loc);
-        if (hashed_subvol == NULL) {
-                ret = -1;
-                gf_msg (this->name, GF_LOG_WARNING, EINVAL,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: cannot find hashed subvol which is needed to "
-                        "synchronize with renames on this path. "
-                        "Skipping migration", loc->path);
-                goto out;
-        }
-
-        flock.l_type = F_WRLCK;
-
-        tmp_loc.inode = inode_ref (loc->inode);
-        gf_uuid_copy (tmp_loc.gfid, loc->gfid);
-        tmp_loc.path = gf_strdup(loc->path);
-
-        /* this inodelk happens with flock.owner being zero. But to synchronize
-         * hardlink migration we need to have different lkowner for each migration
-         * Filed a bug here: https://bugzilla.redhat.com/show_bug.cgi?id=1468202 to
-         * track the fix for this. Currently synclock takes care of synchronizing
-         * hardlink migration. Once this bug is fixed we can avoid taking synclock */
-        ret = syncop_inodelk (from, DHT_FILE_MIGRATE_DOMAIN, &tmp_loc, F_SETLKW,
-                              &flock, NULL, NULL);
-        if (ret < 0) {
-                *fop_errno = -ret;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_WARNING, *fop_errno,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "migrate file failed: "
-                        "%s: failed to lock file on %s",
-                        loc->path, from->name);
-                goto out;
-        }
-
-        inodelk_locked = _gf_true;
-
-        /* dht_rename has changed to use entrylk on hashed subvol for
-         * synchronization. So, rebalance too has to acquire an entrylk on
-         * hashed subvol.
-         */
-        ret = syncop_entrylk (hashed_subvol, DHT_ENTRY_SYNC_DOMAIN, &parent_loc,
-                              loc->name, ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL,
-                              NULL);
-        if (ret < 0) {
-                *fop_errno = -ret;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_WARNING, *fop_errno,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: failed to acquire entrylk on subvol %s",
-                        loc->path, hashed_subvol->name);
-                goto out;
-        }
-
-        entrylk_locked = _gf_true;
-
-        /* Phase 1 - Data migration is in progress from now on */
-        ret = syncop_lookup (from, loc, &stbuf, NULL, dict, &xattr_rsp);
+            *fop_errno = ENOMEM;
+            ret = -1;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed: %s: failed to "
+                   "set " GLUSTERFS_POSIXLK_COUNT " key in dict",
+                   loc->path);
+            goto out;
+        }
+    } else {
+        gf_msg(this->name, GF_LOG_INFO, 0, 0,
+               "locks will be migrated"
+               " for file: %s",
+               loc->path);
+    }
+
+    ret = dht_build_parent_loc(this, &parent_loc, loc, fop_errno);
+    if (ret < 0) {
+        ret = -1;
+        gf_msg(this->name, GF_LOG_WARNING, *fop_errno,
+               DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: failed to build parent loc, which is needed to "
+               "acquire entrylk to synchronize with renames on this "
+               "path. Skipping migration",
+               loc->path);
+        goto out;
+    }
+
+    hashed_subvol = dht_subvol_get_hashed(this, loc);
+    if (hashed_subvol == NULL) {
+        ret = -1;
+        gf_msg(this->name, GF_LOG_WARNING, EINVAL, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: cannot find hashed subvol which is needed to "
+               "synchronize with renames on this path. "
+               "Skipping migration",
+               loc->path);
+        goto out;
+    }
+
+    flock.l_type = F_WRLCK;
+
+    tmp_loc.inode = inode_ref(loc->inode);
+    gf_uuid_copy(tmp_loc.gfid, loc->gfid);
+    tmp_loc.path = gf_strdup(loc->path);
+
+    /* this inodelk happens with flock.owner being zero. But to synchronize
+     * hardlink migration we need to have different lkowner for each migration
+     * Filed a bug here: https://bugzilla.redhat.com/show_bug.cgi?id=1468202 to
+     * track the fix for this. Currently synclock takes care of synchronizing
+     * hardlink migration. Once this bug is fixed we can avoid taking synclock
+     */
+    ret = syncop_inodelk(from, DHT_FILE_MIGRATE_DOMAIN, &tmp_loc, F_SETLKW,
+                         &flock, NULL, NULL);
+    if (ret < 0) {
+        *fop_errno = -ret;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_WARNING, *fop_errno,
+               DHT_MSG_MIGRATE_FILE_FAILED,
+               "migrate file failed: "
+               "%s: failed to lock file on %s",
+               loc->path, from->name);
+        goto out;
+    }
+
+    inodelk_locked = _gf_true;
+
+    /* dht_rename has changed to use entrylk on hashed subvol for
+     * synchronization. So, rebalance too has to acquire an entrylk on
+     * hashed subvol.
+     */
+    ret = syncop_entrylk(hashed_subvol, DHT_ENTRY_SYNC_DOMAIN, &parent_loc,
+                         loc->name, ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL, NULL);
+    if (ret < 0) {
+        *fop_errno = -ret;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_WARNING, *fop_errno,
+               DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: failed to acquire entrylk on subvol %s", loc->path,
+               hashed_subvol->name);
+        goto out;
+    }
+
+    entrylk_locked = _gf_true;
+
+    /* Phase 1 - Data migration is in progress from now on */
+    ret = syncop_lookup(from, loc, &stbuf, NULL, dict, &xattr_rsp);
+    if (ret) {
+        *fop_errno = -ret;
+        ret = -1;
+        gf_msg(this->name, GF_LOG_ERROR, *fop_errno,
+               DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:"
+               "%s: lookup failed on %s",
+               loc->path, from->name);
+        goto out;
+    }
+
+    /* preserve source mode, so set the same to the destination */
+    src_ia_prot = stbuf.ia_prot;
+
+    /* Check if file can be migrated */
+    ret = __is_file_migratable(this, loc, &stbuf, xattr_rsp, flag, defrag, conf,
+                               fop_errno);
+    if (ret) {
+        if (ret == HARDLINK_MIG_INPROGRESS)
+            ret = 0;
+        goto out;
+    }
+
+    /* Take care of the special files */
+    if (!IA_ISREG(stbuf.ia_type)) {
+        /* Special files */
+        ret = migrate_special_files(this, from, to, loc, &stbuf, fop_errno);
+        goto out;
+    }
+
+    /* create the destination, with required modes/xattr */
+    ret = __dht_rebalance_create_dst_file(this, to, from, loc, &stbuf, &dst_fd,
+                                          fop_errno);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, 0,
+               "Create dst failed"
+               " on - %s for file - %s",
+               to->name, loc->path);
+        goto out;
+    }
+
+    clean_dst = _gf_true;
+
+    ret = __dht_check_free_space(this, to, from, loc, &stbuf, flag, conf,
+                                 &target_changed, &new_target, fop_errno);
+    if (target_changed) {
+        /* Can't handle for hardlinks. Marking this as failure */
+        if (flag == GF_DHT_MIGRATE_HARDLINK_IN_PROGRESS || stbuf.ia_nlink > 1) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SUBVOL_INSUFF_SPACE,
+                   "Exiting migration for"
+                   " file - %s. flag - %d, stbuf.ia_nlink - %d",
+                   loc->path, flag, stbuf.ia_nlink);
+            ret = -1;
+            goto out;
+        }
+
+        ret = syncop_ftruncate(to, dst_fd, 0, NULL, NULL, NULL, NULL);
         if (ret) {
-                *fop_errno = -ret;
-                ret = -1;
-                gf_msg (this->name, GF_LOG_ERROR, *fop_errno,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:"
-                        "%s: lookup failed on %s",
-                        loc->path, from->name);
-               goto out;
+            gf_log(this->name, GF_LOG_WARNING,
+                   "%s: failed to perform truncate on %s (%s)", loc->path,
+                   to->name, strerror(-ret));
         }
 
-        /* preserve source mode, so set the same to the destination */
-        src_ia_prot = stbuf.ia_prot;
+        syncop_close(dst_fd);
+        dst_fd = NULL;
 
-        /* Check if file can be migrated */
-        ret = __is_file_migratable (this, loc, &stbuf, xattr_rsp, flag, defrag, conf,
-                                    fop_errno);
-        if (ret) {
-                if (ret == HARDLINK_MIG_INPROGRESS)
-                        ret = 0;
-                goto out;
-        }
+        old_target = to;
+        to = new_target;
 
-        /* Take care of the special files */
-        if (!IA_ISREG (stbuf.ia_type)) {
-                /* Special files */
-                ret = migrate_special_files (this, from, to, loc, &stbuf,
-                                             fop_errno);
-                goto out;
-        }
+        clean_dst = _gf_false;
 
-        /* create the destination, with required modes/xattr */
-        ret = __dht_rebalance_create_dst_file (this, to, from, loc, &stbuf,
-                                               &dst_fd, fop_errno);
+        /* if the file migration is successful to this new target, then
+         * update the xattr on the old destination to point the new
+         * destination. We need to do update this only post migration
+         * as in case of failure the linkto needs to point to the source
+         * subvol */
+        ret = __dht_rebalance_create_dst_file(this, to, from, loc, &stbuf,
+                                              &dst_fd, fop_errno);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, 0, "Create dst failed"
-                        " on - %s for file - %s", to->name, loc->path);
-                goto out;
-        }
-
-        clean_dst = _gf_true;
-
-        ret = __dht_check_free_space (this, to, from, loc, &stbuf, flag, conf,
-                                      &target_changed, &new_target, fop_errno);
-        if (target_changed) {
-                /* Can't handle for hardlinks. Marking this as failure */
-                if (flag == GF_DHT_MIGRATE_HARDLINK_IN_PROGRESS || stbuf.ia_nlink > 1) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_SUBVOL_INSUFF_SPACE, "Exiting migration for"
-                                " file - %s. flag - %d, stbuf.ia_nlink - %d",
-                               loc->path,  flag, stbuf.ia_nlink);
-                        ret = -1;
-                        goto out;
-                }
+            gf_log(this->name, GF_LOG_ERROR,
+                   "Create dst failed"
+                   " on - %s for file - %s",
+                   to->name, loc->path);
+            goto out;
+        } else {
+            gf_msg(this->name, GF_LOG_INFO, 0, 0,
+                   "destination for file "
+                   "- %s is changed to - %s",
+                   loc->path, to->name);
+            clean_dst = _gf_true;
+        }
+    }
+
+    if (ret) {
+        goto out;
+    }
+
+    /* Open the source, and also update mode/xattr */
+    ret = __dht_rebalance_open_src_file(this, from, to, loc, &stbuf, &src_fd,
+                                        &clean_src, fop_errno);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed: failed to open %s on %s", loc->path,
+               from->name);
+        goto out;
+    }
+
+    /* TODO: move all xattr related operations to fd based operations */
+    ret = syncop_listxattr(from, loc, &xattr, NULL, NULL);
+    if (ret < 0) {
+        *fop_errno = -ret;
+        gf_msg(this->name, GF_LOG_WARNING, *fop_errno,
+               DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:"
+               "%s: failed to get xattr from %s",
+               loc->path, from->name);
+        ret = -1;
+        goto out;
+    }
+
+    /* Copying posix acls to the linkto file messes up the permissions*/
+    dht_strip_out_acls(xattr);
+
+    /* Remove the linkto xattr as we don't want to overwrite the value
+     * set on the dst.
+     */
+    dict_del(xattr, conf->link_xattr_name);
+
+    /* We need to error out if this fails as having the wrong shard xattrs
+     * set on the dst could cause data corruption
+     */
+    ret = syncop_fsetxattr(to, dst_fd, xattr, 0, NULL, NULL);
+    if (ret < 0) {
+        *fop_errno = -ret;
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: failed to set xattr on %s", loc->path, to->name);
+        ret = -1;
+        goto out;
+    }
 
+    if (xattr_rsp) {
+        /* we no more require this key */
+        dict_del(dict, conf->link_xattr_name);
+        dict_unref(xattr_rsp);
+    }
+
+    ret = syncop_fstat(from, src_fd, &stbuf, dict, &xattr_rsp);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:failed to lookup %s on %s ", loc->path,
+               from->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
+
+    /* Check again if file has hardlink */
+    ret = __check_file_has_hardlink(this, loc, &stbuf, xattr_rsp, flag, defrag,
+                                    conf, fop_errno);
+    if (ret) {
+        if (ret == HARDLINK_MIG_INPROGRESS)
+            ret = 0;
+        goto out;
+    }
+    /* Try to preserve 'holes' while migrating data */
+    if (stbuf.ia_size > (stbuf.ia_blocks * GF_DISK_SECTOR_SIZE))
+        file_has_holes = 1;
+
+    ret = __dht_rebalance_migrate_data(this, defrag, from, to, src_fd, dst_fd,
+                                       stbuf.ia_size, file_has_holes,
+                                       fop_errno);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed: %s: failed to migrate data", loc->path);
 
-                ret = syncop_ftruncate (to, dst_fd, 0, NULL, NULL, NULL, NULL);
-                if (ret) {
-                        gf_log (this->name, GF_LOG_WARNING,
-                                "%s: failed to perform truncate on %s (%s)",
-                                loc->path, to->name, strerror (-ret));
-                }
+        ret = -1;
+        goto out;
+    }
+
+    /* TODO: Sync the locks */
+
+    ret = syncop_fsync(to, dst_fd, 0, NULL, NULL, NULL, NULL);
+    if (ret) {
+        gf_log(this->name, GF_LOG_WARNING, "%s: failed to fsync on %s (%s)",
+               loc->path, to->name, strerror(-ret));
+        *fop_errno = -ret;
+    }
+
+    /* Phase 2 - Data-Migration Complete, Housekeeping updates pending */
+
+    ret = syncop_fstat(from, src_fd, &new_stbuf, NULL, NULL);
+    if (ret < 0) {
+        /* Failed to get the stat info */
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed: failed to fstat file %s on %s ", loc->path,
+               from->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto out;
+    }
 
-                syncop_close (dst_fd);
-                dst_fd = NULL;
+    /* Lock the entire source file to prevent clients from taking a
+       lock on it as dht_lk does not handle file migration.
 
-                old_target = to;
-                to = new_target;
+       This still leaves a small window where conflicting locks can
+       be granted to different clients. If client1 requests a blocking
+       lock on the src file, it will be granted after the migrating
+       process releases its lock. If client2 requests a lock on the dst
+       data file, it will also be granted, but all FOPs will be redirected
+       to the dst data file.
+    */
 
-                clean_dst = _gf_false;
+    /* Take meta lock  */
 
+    if (conf->lock_migration_enabled) {
+        meta_dict = dict_new();
+        if (!meta_dict) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "dict_new failed");
 
-                /* if the file migration is successful to this new target, then
-                 * update the xattr on the old destination to point the new
-                 * destination. We need to do update this only post migration
-                 * as in case of failure the linkto needs to point to the source
-                 * subvol */
-                ret = __dht_rebalance_create_dst_file (this, to, from, loc, &stbuf,
-                                                       &dst_fd, fop_errno);
-                if (ret) {
-                        gf_log (this->name, GF_LOG_ERROR, "Create dst failed"
-                                " on - %s for file - %s", to->name, loc->path);
-                        goto out;
-                } else {
-                        gf_msg (this->name, GF_LOG_INFO, 0, 0, "destination for file "
-                                "- %s is changed to - %s", loc->path, to->name);
-                        clean_dst = _gf_true;
-                }
+            *fop_errno = ENOMEM;
+            ret = -1;
+            goto out;
         }
 
+        ret = dict_set_str(meta_dict, GLUSTERFS_INTERNAL_FOP_KEY, "yes");
         if (ret) {
-                goto out;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dictionary value: key = %s,"
+                   " path = %s",
+                   GLUSTERFS_INTERNAL_FOP_KEY, loc->path);
+            *fop_errno = ENOMEM;
+            ret = -1;
+            goto out;
         }
 
-        /* Open the source, and also update mode/xattr */
-        ret = __dht_rebalance_open_src_file (this, from, to, loc, &stbuf, &src_fd,
-                                             &clean_src, fop_errno);
+        ret = dict_set_int32(meta_dict, GF_META_LOCK_KEY, 1);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed: failed to open %s on %s",
-                        loc->path, from->name);
-                goto out;
-        }
-
-        /* TODO: move all xattr related operations to fd based operations */
-        ret = syncop_listxattr (from, loc, &xattr, NULL, NULL);
-        if (ret < 0) {
-                *fop_errno = -ret;
-                gf_msg (this->name, GF_LOG_WARNING, *fop_errno,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:"
-                        "%s: failed to get xattr from %s",
-                        loc->path, from->name);
-                ret = -1;
-                goto out;
-        }
-
-        /* Copying posix acls to the linkto file messes up the permissions*/
-        dht_strip_out_acls (xattr);
-
-        /* Remove the linkto xattr as we don't want to overwrite the value
-         * set on the dst.
-         */
-        dict_del (xattr, conf->link_xattr_name);
-
-        /* We need to error out if this fails as having the wrong shard xattrs
-         * set on the dst could cause data corruption
-         */
-        ret = syncop_fsetxattr (to, dst_fd, xattr, 0, NULL, NULL);
-        if (ret < 0) {
-                *fop_errno = -ret;
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: failed to set xattr on %s",
-                        loc->path, to->name);
-                ret = -1;
-                goto out;
-        }
-
-        if (xattr_rsp) {
-                /* we no more require this key */
-                dict_del (dict, conf->link_xattr_name);
-                dict_unref (xattr_rsp);
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Trace dict_set failed");
+            *fop_errno = ENOMEM;
+            ret = -1;
+            goto out;
         }
 
-        ret = syncop_fstat (from, src_fd, &stbuf, dict, &xattr_rsp);
+        ret = syncop_setxattr(from, loc, meta_dict, 0, NULL, NULL);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:failed to lookup %s on %s ",
-                        loc->path, from->name);
-                *fop_errno = -ret;
-                ret = -1;
-                goto out;
-        }
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Trace syncop_setxattr metalock failed");
 
-        /* Check again if file has hardlink */
-        ret = __check_file_has_hardlink (this, loc, &stbuf, xattr_rsp,
-                                         flag, defrag, conf, fop_errno);
-        if (ret) {
-                if (ret == HARDLINK_MIG_INPROGRESS)
-                        ret = 0;
-                goto out;
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
+        } else {
+            meta_locked = _gf_true;
         }
-        /* Try to preserve 'holes' while migrating data */
-        if (stbuf.ia_size > (stbuf.ia_blocks * GF_DISK_SECTOR_SIZE))
-                file_has_holes = 1;
+    }
 
+    if (!conf->lock_migration_enabled) {
+        plock.l_type = F_WRLCK;
+        plock.l_start = 0;
+        plock.l_len = 0;
+        plock.l_whence = SEEK_SET;
 
-        ret = __dht_rebalance_migrate_data (this, defrag, from, to,
-                                            src_fd, dst_fd, stbuf.ia_size,
-                                            file_has_holes, fop_errno);
+        ret = syncop_lk(from, src_fd, F_SETLK, &plock, NULL, NULL);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed: %s: failed to migrate data",
-                        loc->path);
-
-                ret = -1;
-                goto out;
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed:"
+                   "%s: Failed to lock on %s",
+                   loc->path, from->name);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
         }
 
-        /* TODO: Sync the locks */
+        p_locked = _gf_true;
 
-        ret = syncop_fsync (to, dst_fd, 0, NULL, NULL, NULL, NULL);
-        if (ret) {
-                gf_log (this->name, GF_LOG_WARNING,
-                        "%s: failed to fsync on %s (%s)",
-                        loc->path, to->name, strerror (-ret));
-                *fop_errno = -ret;
-        }
+    } else {
+        INIT_LIST_HEAD(&locklist.list);
 
+        ret = syncop_getactivelk(from, loc, &locklist, NULL, NULL);
+        if (ret == 0) {
+            gf_log(this->name, GF_LOG_INFO, "No active locks on:%s", loc->path);
 
-        /* Phase 2 - Data-Migration Complete, Housekeeping updates pending */
+        } else if (ret > 0) {
+            ret = syncop_setactivelk(to, loc, &locklist, NULL, NULL);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, -ret,
+                       DHT_MSG_LOCK_MIGRATION_FAILED, "write lock failed on:%s",
+                       loc->path);
 
-        ret = syncop_fstat (from, src_fd, &new_stbuf, NULL, NULL);
-        if (ret < 0) {
-                /* Failed to get the stat info */
-                gf_msg ( this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed: failed to fstat file %s on %s ",
-                        loc->path, from->name);
                 *fop_errno = -ret;
                 ret = -1;
-                goto out;
-        }
-
-        /* Lock the entire source file to prevent clients from taking a
-           lock on it as dht_lk does not handle file migration.
-
-           This still leaves a small window where conflicting locks can
-           be granted to different clients. If client1 requests a blocking
-           lock on the src file, it will be granted after the migrating
-           process releases its lock. If client2 requests a lock on the dst
-           data file, it will also be granted, but all FOPs will be redirected
-           to the dst data file.
-        */
-
-        /* Take meta lock  */
-
-        if (conf->lock_migration_enabled) {
-                meta_dict = dict_new ();
-                if (!meta_dict) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "dict_new failed");
-
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = dict_set_str (meta_dict, GLUSTERFS_INTERNAL_FOP_KEY, "yes");
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dictionary value: key = %s,"
-                                " path = %s", GLUSTERFS_INTERNAL_FOP_KEY,
-                                 loc->path);
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = dict_set_int32 (meta_dict, GF_META_LOCK_KEY, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Trace dict_set failed");
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = syncop_setxattr (from, loc, meta_dict, 0, NULL, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Trace syncop_setxattr metalock failed");
-
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                } else {
-                        meta_locked = _gf_true;
-                }
-        }
-
-        if (!conf->lock_migration_enabled) {
-                plock.l_type = F_WRLCK;
-                plock.l_start = 0;
-                plock.l_len = 0;
-                plock.l_whence = SEEK_SET;
-
-                ret = syncop_lk (from, src_fd, F_SETLK, &plock, NULL, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed:"
-                                "%s: Failed to lock on %s",
-                                loc->path, from->name);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
-
-                p_locked = _gf_true;
-
+                goto metaunlock;
+            }
         } else {
-
-                INIT_LIST_HEAD (&locklist.list);
-
-                ret = syncop_getactivelk (from, loc, &locklist, NULL, NULL);
-                if (ret == 0) {
-                        gf_log (this->name, GF_LOG_INFO, "No active locks on:%s"
-                                , loc->path);
-
-                } else if (ret > 0) {
-
-                        ret = syncop_setactivelk (to, loc, &locklist, NULL,
-                                                  NULL);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                        DHT_MSG_LOCK_MIGRATION_FAILED,
-                                        "write lock failed on:%s", loc->path);
-
-                                *fop_errno = -ret;
-                                ret = -1;
-                                goto metaunlock;
-                        }
-                } else {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_LOCK_MIGRATION_FAILED,
-                                "getactivelk failed for file: %s", loc->path);
-                        *fop_errno = -ret;
-                }
-        }
-
-
-        /* source would have both sticky bit and sgid bit set, reset it to 0,
-           and set the source permission on destination, if it was not set
-           prior to setting rebalance-modes in source  */
-        if (!src_ia_prot.sticky)
-                new_stbuf.ia_prot.sticky = 0;
-
-        if (!src_ia_prot.sgid)
-                new_stbuf.ia_prot.sgid = 0;
-
-        /* TODO: if the source actually had sticky bit, or sgid bit set,
-           we are not handling it */
-
-        ret = syncop_fsetattr (to, dst_fd, &new_stbuf,
-                               (GF_SET_ATTR_UID | GF_SET_ATTR_GID |
-                                GF_SET_ATTR_MODE), NULL, NULL, NULL, NULL);
+            gf_msg(this->name, GF_LOG_ERROR, -ret,
+                   DHT_MSG_LOCK_MIGRATION_FAILED,
+                   "getactivelk failed for file: %s", loc->path);
+            *fop_errno = -ret;
+        }
+    }
+
+    /* source would have both sticky bit and sgid bit set, reset it to 0,
+       and set the source permission on destination, if it was not set
+       prior to setting rebalance-modes in source  */
+    if (!src_ia_prot.sticky)
+        new_stbuf.ia_prot.sticky = 0;
+
+    if (!src_ia_prot.sgid)
+        new_stbuf.ia_prot.sgid = 0;
+
+    /* TODO: if the source actually had sticky bit, or sgid bit set,
+       we are not handling it */
+
+    ret = syncop_fsetattr(
+        to, dst_fd, &new_stbuf,
+        (GF_SET_ATTR_UID | GF_SET_ATTR_GID | GF_SET_ATTR_MODE), NULL, NULL,
+        NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:"
+               "%s: failed to perform setattr on %s ",
+               loc->path, to->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto metaunlock;
+    }
+
+    /* Because 'futimes' is not portable */
+    ret = syncop_setattr(to, loc, &new_stbuf,
+                         (GF_SET_ATTR_MTIME | GF_SET_ATTR_ATIME), NULL, NULL,
+                         NULL, NULL);
+    if (ret) {
+        gf_log(this->name, GF_LOG_WARNING,
+               "%s: failed to perform setattr on %s ", loc->path, to->name);
+        *fop_errno = -ret;
+    }
+
+    if (target_changed) {
+        dict_del(dict, GLUSTERFS_POSIXLK_COUNT);
+        ret = dict_set_str(dict, conf->link_xattr_name, to->name);
         if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:"
-                        "%s: failed to perform setattr on %s ",
-                        loc->path, to->name);
-                *fop_errno = -ret;
+            gf_log(this->name, GF_LOG_ERROR,
+                   "failed to set xattr in dict for %s (linkto:%s)", loc->path,
+                   to->name);
+            *fop_errno = ENOMEM;
+            ret = -1;
+            goto out;
+        }
+
+        ret = syncop_setxattr(old_target, loc, dict, 0, NULL, NULL);
+        if (ret && -ret != ESTALE && -ret != ENOENT) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "failed to set xattr on %s in %s", loc->path,
+                   old_target->name);
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
+        } else if (-ret == ESTALE || -ret == ENOENT) {
+            /* The failure ESTALE indicates that the linkto
+             * file on the hashed subvol might have been deleted.
+             * In this case will create a linkto file with new target
+             * as linkto xattr value*/
+            linkto_fd = fd_create(loc->inode, DHT_REBALANCE_PID);
+            if (!linkto_fd) {
+                gf_msg(this->name, GF_LOG_ERROR, errno,
+                       DHT_MSG_MIGRATE_FILE_FAILED, "%s: fd create failed",
+                       loc->path);
+                *fop_errno = ENOMEM;
                 ret = -1;
-                goto metaunlock;
-        }
-
-        /* Because 'futimes' is not portable */
-        ret = syncop_setattr (to, loc, &new_stbuf,
-                              (GF_SET_ATTR_MTIME | GF_SET_ATTR_ATIME),
-                              NULL, NULL, NULL, NULL);
-        if (ret) {
-                gf_log (this->name, GF_LOG_WARNING,
-                        "%s: failed to perform setattr on %s ",
-                        loc->path, to->name);
+                goto out;
+            }
+            ret = syncop_create(old_target, loc, O_RDWR, DHT_LINKFILE_MODE,
+                                linkto_fd, NULL, dict, NULL);
+            if (ret != 0 && -ret != EEXIST && -ret != ESTALE) {
                 *fop_errno = -ret;
-        }
-
-        if (target_changed) {
-                dict_del (dict, GLUSTERFS_POSIXLK_COUNT);
-                ret = dict_set_str (dict, conf->link_xattr_name, to->name);
-                if (ret) {
-                        gf_log (this->name, GF_LOG_ERROR,
-                                "failed to set xattr in dict for %s (linkto:%s)",
-                                loc->path, to->name);
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = syncop_setxattr (old_target, loc, dict, 0, NULL, NULL);
-                if (ret && -ret != ESTALE && -ret != ENOENT) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "failed to set xattr on %s in %s",
-                                loc->path, old_target->name);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                } else if (-ret == ESTALE || -ret == ENOENT) {
-                       /* The failure ESTALE indicates that the linkto
-                        * file on the hashed subvol might have been deleted.
-                        * In this case will create a linkto file with new target
-                        * as linkto xattr value*/
-                        linkto_fd = fd_create (loc->inode, DHT_REBALANCE_PID);
-                        if (!linkto_fd) {
-                                gf_msg (this->name, GF_LOG_ERROR, errno,
-                                        DHT_MSG_MIGRATE_FILE_FAILED,
-                                        "%s: fd create failed", loc->path);
-                                *fop_errno = ENOMEM;
-                                ret = -1;
-                                goto out;
-                        }
-                        ret = syncop_create (old_target, loc, O_RDWR,
-                                             DHT_LINKFILE_MODE, linkto_fd,
-                                             NULL, dict, NULL);
-                        if (ret != 0 && -ret != EEXIST && -ret != ESTALE) {
-                                *fop_errno = -ret;
-                                ret = -1;
-                                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                        DHT_MSG_MIGRATE_FILE_FAILED,
-                                        "failed to create linkto file on %s in %s",
-                                        loc->path, old_target->name);
-                                goto out;
-                        } else if (ret == 0) {
-                                ret = syncop_fsetattr (old_target, linkto_fd, &stbuf,
-                                                       (GF_SET_ATTR_UID | GF_SET_ATTR_GID),
-                                                       NULL, NULL, NULL, NULL);
-                                if (ret < 0) {
-                                        *fop_errno = -ret;
-                                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                                "chown failed for %s on %s",
-                                                loc->path, old_target->name);
-                                }
-                        }
+                ret = -1;
+                gf_msg(this->name, GF_LOG_ERROR, -ret,
+                       DHT_MSG_MIGRATE_FILE_FAILED,
+                       "failed to create linkto file on %s in %s", loc->path,
+                       old_target->name);
+                goto out;
+            } else if (ret == 0) {
+                ret = syncop_fsetattr(old_target, linkto_fd, &stbuf,
+                                      (GF_SET_ATTR_UID | GF_SET_ATTR_GID), NULL,
+                                      NULL, NULL, NULL);
+                if (ret < 0) {
+                    *fop_errno = -ret;
+                    gf_msg(this->name, GF_LOG_ERROR, -ret,
+                           DHT_MSG_MIGRATE_FILE_FAILED,
+                           "chown failed for %s on %s", loc->path,
+                           old_target->name);
                 }
-        }
-
-        clean_dst = _gf_false;
-
-        /* Posix acls are not set on DHT linkto files as part of the initial
-         * initial xattrs set on the dst file, so these need
-         * to be set on the dst file after the linkto attrs are removed.
-         * TODO: Optimize this.
-         */
-        if (xattr) {
-                dict_unref (xattr);
-                xattr = NULL;
-        }
-
-        /* Set only the Posix ACLs this time */
-        ret = syncop_getxattr (from, loc, &xattr, POSIX_ACL_ACCESS_XATTR,
-                               NULL, NULL);
+            }
+        }
+    }
+
+    clean_dst = _gf_false;
+
+    /* Posix acls are not set on DHT linkto files as part of the initial
+     * initial xattrs set on the dst file, so these need
+     * to be set on the dst file after the linkto attrs are removed.
+     * TODO: Optimize this.
+     */
+    if (xattr) {
+        dict_unref(xattr);
+        xattr = NULL;
+    }
+
+    /* Set only the Posix ACLs this time */
+    ret = syncop_getxattr(from, loc, &xattr, POSIX_ACL_ACCESS_XATTR, NULL,
+                          NULL);
+    if (ret < 0) {
+        if ((-ret != ENODATA) && (-ret != ENOATTR)) {
+            gf_msg(this->name, GF_LOG_WARNING, -ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed:"
+                   "%s: failed to get xattr from %s",
+                   loc->path, from->name);
+            *fop_errno = -ret;
+        }
+    } else {
+        ret = syncop_setxattr(to, loc, xattr, 0, NULL, NULL);
         if (ret < 0) {
-                if ((-ret != ENODATA) && (-ret != ENOATTR)) {
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed:"
-                                "%s: failed to get xattr from %s",
-                                loc->path, from->name);
-                        *fop_errno = -ret;
-                }
+            /* Potential problem here where Posix ACLs will
+             * not be set on the target file */
+
+            gf_msg(this->name, GF_LOG_WARNING, -ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed:"
+                   "%s: failed to set xattr on %s",
+                   loc->path, to->name);
+            *fop_errno = -ret;
+        }
+    }
+
+    /* store size of previous migrated file  */
+    if (defrag && defrag->tier_conf.is_tier) {
+        if (from != TIER_HASHED_SUBVOL) {
+            defrag->tier_conf.st_last_promoted_size = stbuf.ia_size;
         } else {
-                ret = syncop_setxattr (to, loc, xattr, 0, NULL, NULL);
-                if (ret < 0) {
-                        /* Potential problem here where Posix ACLs will
-                         * not be set on the target file */
-
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed:"
-                                "%s: failed to set xattr on %s",
-                                loc->path, to->name);
-                        *fop_errno = -ret;
-                }
-        }
-
-        /* store size of previous migrated file  */
-        if (defrag && defrag->tier_conf.is_tier) {
-                if (from != TIER_HASHED_SUBVOL) {
-                        defrag->tier_conf.st_last_promoted_size = stbuf.ia_size;
-                } else {
-                        /* Don't delete the linkto file on the hashed subvol */
-                        delete_src_linkto = _gf_false;
-                        defrag->tier_conf.st_last_demoted_size = stbuf.ia_size;
-                }
-        }
-
-        /* The src file is being unlinked after this so we don't need
-           to clean it up */
-        clean_src = _gf_false;
-
-        /* Make the source as a linkfile first before deleting it */
-        empty_iatt.ia_prot.sticky = 1;
-        ret = syncop_fsetattr (from, src_fd, &empty_iatt,
-                               GF_SET_ATTR_MODE, NULL, NULL, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed:"
-                        "%s: failed to perform setattr on %s ",
-                        loc->path, from->name);
-                *fop_errno = -ret;
-                ret = -1;
-                goto metaunlock;
-        }
-
-       /* Free up the data blocks on the source node, as the whole
-           file is migrated */
-        ret = syncop_ftruncate (from, src_fd, 0, NULL, NULL, NULL, NULL);
-        if (ret) {
-                gf_log (this->name, GF_LOG_WARNING,
-                        "%s: failed to perform truncate on %s (%s)",
-                        loc->path, from->name, strerror (-ret));
-                *fop_errno = -ret;
-        }
-
-        /* remove the 'linkto' xattr from the destination */
-        ret = syncop_fremovexattr (to, dst_fd, conf->link_xattr_name, 0, NULL);
+            /* Don't delete the linkto file on the hashed subvol */
+            delete_src_linkto = _gf_false;
+            defrag->tier_conf.st_last_demoted_size = stbuf.ia_size;
+        }
+    }
+
+    /* The src file is being unlinked after this so we don't need
+       to clean it up */
+    clean_src = _gf_false;
+
+    /* Make the source as a linkfile first before deleting it */
+    empty_iatt.ia_prot.sticky = 1;
+    ret = syncop_fsetattr(from, src_fd, &empty_iatt, GF_SET_ATTR_MODE, NULL,
+                          NULL, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed:"
+               "%s: failed to perform setattr on %s ",
+               loc->path, from->name);
+        *fop_errno = -ret;
+        ret = -1;
+        goto metaunlock;
+    }
+
+    /* Free up the data blocks on the source node, as the whole
+        file is migrated */
+    ret = syncop_ftruncate(from, src_fd, 0, NULL, NULL, NULL, NULL);
+    if (ret) {
+        gf_log(this->name, GF_LOG_WARNING,
+               "%s: failed to perform truncate on %s (%s)", loc->path,
+               from->name, strerror(-ret));
+        *fop_errno = -ret;
+    }
+
+    /* remove the 'linkto' xattr from the destination */
+    ret = syncop_fremovexattr(to, dst_fd, conf->link_xattr_name, 0, NULL);
+    if (ret) {
+        gf_log(this->name, GF_LOG_WARNING,
+               "%s: failed to perform removexattr on %s (%s)", loc->path,
+               to->name, strerror(-ret));
+        *fop_errno = -ret;
+    }
+
+    /* Do a stat and check the gfid before unlink */
+
+    /*
+     * Cached file changes its state from non-linkto to linkto file after
+     * migrating data. If lookup from any other mount-point is performed,
+     * converted-linkto-cached file will be treated as a stale and will be
+     * unlinked. But by this time, file is already migrated. So further
+     * failure because of ENOENT should  not be treated as error
+     */
+
+    ret = syncop_stat(from, loc, &empty_iatt, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "%s: failed to do a stat on %s", loc->path, from->name);
+
+        if (-ret != ENOENT) {
+            *fop_errno = -ret;
+            ret = -1;
+            goto metaunlock;
+        }
+
+        rcvd_enoent_from_src = 1;
+    }
+
+    if ((gf_uuid_compare(empty_iatt.ia_gfid, loc->gfid) == 0) &&
+        (!rcvd_enoent_from_src) && delete_src_linkto) {
+        /* take out the source from namespace */
+        ret = syncop_unlink(from, loc, NULL, NULL);
         if (ret) {
-                gf_log (this->name, GF_LOG_WARNING,
-                        "%s: failed to perform removexattr on %s (%s)",
-                        loc->path, to->name, strerror (-ret));
-                *fop_errno = -ret;
+            gf_msg(this->name, GF_LOG_WARNING, -ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: failed to perform unlink on %s", loc->path, from->name);
+            *fop_errno = -ret;
+            ret = -1;
+            goto metaunlock;
         }
+    }
 
-        /* Do a stat and check the gfid before unlink */
-
-        /*
-         * Cached file changes its state from non-linkto to linkto file after
-         * migrating data. If lookup from any other mount-point is performed,
-         * converted-linkto-cached file will be treated as a stale and will be
-         * unlinked. But by this time, file is already migrated. So further
-         * failure because of ENOENT should  not be treated as error
-         */
+    ret = syncop_lookup(this, loc, NULL, NULL, NULL, NULL);
+    if (ret) {
+        gf_msg_debug(this->name, -ret,
+                     "%s: failed to lookup the file on subvolumes", loc->path);
+        *fop_errno = -ret;
+    }
 
-        ret = syncop_stat (from, loc, &empty_iatt, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "%s: failed to do a stat on %s",
-                        loc->path, from->name);
-
-                if (-ret != ENOENT) {
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto metaunlock;
-                }
-
-                rcvd_enoent_from_src = 1;
-        }
+    gf_msg(this->name, log_level, 0, DHT_MSG_MIGRATE_FILE_COMPLETE,
+           "completed migration of %s from subvolume %s to %s", loc->path,
+           from->name, to->name);
 
-
-        if ((gf_uuid_compare (empty_iatt.ia_gfid, loc->gfid) == 0 ) &&
-            (!rcvd_enoent_from_src) && delete_src_linkto) {
-                /* take out the source from namespace */
-                ret = syncop_unlink (from, loc, NULL, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: failed to perform unlink on %s",
-                                loc->path, from->name);
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto metaunlock;
-                }
-        }
-
-        ret = syncop_lookup (this, loc, NULL, NULL, NULL, NULL);
-        if (ret) {
-                gf_msg_debug (this->name, -ret,
-                              "%s: failed to lookup the file on subvolumes",
-                              loc->path);
-                *fop_errno = -ret;
-        }
-
-        gf_msg (this->name, log_level, 0,
-                DHT_MSG_MIGRATE_FILE_COMPLETE,
-                "completed migration of %s from subvolume %s to %s",
-                loc->path, from->name, to->name);
-
-        ret = 0;
+    ret = 0;
 
 metaunlock:
 
-        if (conf->lock_migration_enabled && meta_locked) {
+    if (conf->lock_migration_enabled && meta_locked) {
+        dict_del(meta_dict, GF_META_LOCK_KEY);
 
-                dict_del (meta_dict, GF_META_LOCK_KEY);
-
-                ret = dict_set_int32 (meta_dict, GF_META_UNLOCK_KEY, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Trace dict_set failed");
-
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-
-                if (clean_dst == _gf_false)
-                        ret = dict_set_int32 (meta_dict, "status", 1);
-                else
-                        ret = dict_set_int32 (meta_dict, "status", 0);
-
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Trace dict_set failed");
-
-                        *fop_errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = syncop_setxattr (from, loc, meta_dict, 0, NULL, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Trace syncop_setxattr meta unlock failed");
-
-                        *fop_errno = -ret;
-                        ret = -1;
-                        goto out;
-                }
-        }
-
-out:
-        if (clean_src) {
-                /* Revert source mode and xattr changes*/
-                lk_ret = __dht_migration_cleanup_src_file (this, loc, src_fd,
-                                                        from, &src_ia_prot);
-                if (lk_ret) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: failed to cleanup source file on %s",
-                                loc->path, from->name);
-                }
-        }
+        ret = dict_set_int32(meta_dict, GF_META_UNLOCK_KEY, 1);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Trace dict_set failed");
 
-        /* reset the destination back to 0 */
-        if (clean_dst) {
-                lk_ret = syncop_ftruncate (to, dst_fd, 0, NULL, NULL,
-                                           NULL, NULL);
-                if (lk_ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, -lk_ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "Migrate file failed: "
-                                "%s: failed to reset target size back to 0",
-                                loc->path);
-                }
+            *fop_errno = ENOMEM;
+            ret = -1;
+            goto out;
         }
 
-        if (inodelk_locked) {
-                flock.l_type = F_UNLCK;
+        if (clean_dst == _gf_false)
+            ret = dict_set_int32(meta_dict, "status", 1);
+        else
+            ret = dict_set_int32(meta_dict, "status", 0);
 
-                lk_ret = syncop_inodelk (from, DHT_FILE_MIGRATE_DOMAIN,
-                                         &tmp_loc, F_SETLK, &flock, NULL, NULL);
-                if (lk_ret < 0) {
-                        gf_msg (this->name, GF_LOG_WARNING, -lk_ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: failed to unlock file on %s",
-                                loc->path, from->name);
-                }
-        }
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Trace dict_set failed");
 
-        if (entrylk_locked) {
-                lk_ret = syncop_entrylk (hashed_subvol, DHT_ENTRY_SYNC_DOMAIN,
-                                         &parent_loc, loc->name, ENTRYLK_UNLOCK,
-                                         ENTRYLK_UNLOCK, NULL, NULL);
-                if (lk_ret < 0) {
-                        gf_msg (this->name, GF_LOG_WARNING, -lk_ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: failed to unlock entrylk on %s",
-                                loc->path, hashed_subvol->name);
-                }
+            *fop_errno = ENOMEM;
+            ret = -1;
+            goto out;
         }
 
-        if (p_locked) {
-                plock.l_type = F_UNLCK;
-                lk_ret = syncop_lk (from, src_fd, F_SETLK, &plock, NULL, NULL);
+        ret = syncop_setxattr(from, loc, meta_dict, 0, NULL, NULL);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Trace syncop_setxattr meta unlock failed");
 
-                if (lk_ret < 0) {
-                        gf_msg (this->name, GF_LOG_WARNING, -lk_ret,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "%s: failed to unlock file on %s",
-                                loc->path, from->name);
-                }
+            *fop_errno = -ret;
+            ret = -1;
+            goto out;
         }
+    }
 
-        if (!dht_is_tier_xlator (this)) {
-                lk_ret = syncop_removexattr (to, loc,
-                                             GF_PROTECT_FROM_EXTERNAL_WRITES,
-                                             NULL, NULL);
-                if (lk_ret && (lk_ret != -ENODATA) && (lk_ret != -ENOATTR)) {
-                        gf_msg (this->name, GF_LOG_WARNING, -lk_ret, 0,
-                                "%s: removexattr failed key %s", loc->path,
-                                GF_PROTECT_FROM_EXTERNAL_WRITES);
-                }
+out:
+    if (clean_src) {
+        /* Revert source mode and xattr changes*/
+        lk_ret = __dht_migration_cleanup_src_file(this, loc, src_fd, from,
+                                                  &src_ia_prot);
+        if (lk_ret) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: failed to cleanup source file on %s", loc->path,
+                   from->name);
+        }
+    }
+
+    /* reset the destination back to 0 */
+    if (clean_dst) {
+        lk_ret = syncop_ftruncate(to, dst_fd, 0, NULL, NULL, NULL, NULL);
+        if (lk_ret) {
+            gf_msg(this->name, GF_LOG_ERROR, -lk_ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "Migrate file failed: "
+                   "%s: failed to reset target size back to 0",
+                   loc->path);
+        }
+    }
+
+    if (inodelk_locked) {
+        flock.l_type = F_UNLCK;
+
+        lk_ret = syncop_inodelk(from, DHT_FILE_MIGRATE_DOMAIN, &tmp_loc,
+                                F_SETLK, &flock, NULL, NULL);
+        if (lk_ret < 0) {
+            gf_msg(this->name, GF_LOG_WARNING, -lk_ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: failed to unlock file on %s", loc->path, from->name);
+        }
+    }
+
+    if (entrylk_locked) {
+        lk_ret = syncop_entrylk(hashed_subvol, DHT_ENTRY_SYNC_DOMAIN,
+                                &parent_loc, loc->name, ENTRYLK_UNLOCK,
+                                ENTRYLK_UNLOCK, NULL, NULL);
+        if (lk_ret < 0) {
+            gf_msg(this->name, GF_LOG_WARNING, -lk_ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: failed to unlock entrylk on %s", loc->path,
+                   hashed_subvol->name);
+        }
+    }
+
+    if (p_locked) {
+        plock.l_type = F_UNLCK;
+        lk_ret = syncop_lk(from, src_fd, F_SETLK, &plock, NULL, NULL);
+
+        if (lk_ret < 0) {
+            gf_msg(this->name, GF_LOG_WARNING, -lk_ret,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "%s: failed to unlock file on %s", loc->path, from->name);
+        }
+    }
+
+    if (!dht_is_tier_xlator(this)) {
+        lk_ret = syncop_removexattr(to, loc, GF_PROTECT_FROM_EXTERNAL_WRITES,
+                                    NULL, NULL);
+        if (lk_ret && (lk_ret != -ENODATA) && (lk_ret != -ENOATTR)) {
+            gf_msg(this->name, GF_LOG_WARNING, -lk_ret, 0,
+                   "%s: removexattr failed key %s", loc->path,
+                   GF_PROTECT_FROM_EXTERNAL_WRITES);
         }
+    }
 
-        if (dict)
-                dict_unref (dict);
+    if (dict)
+        dict_unref(dict);
 
-        if (xattr)
-                dict_unref (xattr);
-        if (xattr_rsp)
-                dict_unref (xattr_rsp);
+    if (xattr)
+        dict_unref(xattr);
+    if (xattr_rsp)
+        dict_unref(xattr_rsp);
 
-        if (dst_fd)
-                syncop_close (dst_fd);
-        if (src_fd)
-                syncop_close (src_fd);
-        if (linkto_fd)
-                syncop_close (linkto_fd);
+    if (dst_fd)
+        syncop_close(dst_fd);
+    if (src_fd)
+        syncop_close(src_fd);
+    if (linkto_fd)
+        syncop_close(linkto_fd);
 
-        loc_wipe (&tmp_loc);
-        loc_wipe (&parent_loc);
+    loc_wipe(&tmp_loc);
+    loc_wipe(&parent_loc);
 
-        return ret;
+    return ret;
 }
 
 static int
-rebalance_task (void *data)
+rebalance_task(void *data)
 {
-        int           ret   = -1;
-        dht_local_t  *local = NULL;
-        call_frame_t *frame = NULL;
-        int           fop_errno = 0;
+    int ret = -1;
+    dht_local_t *local = NULL;
+    call_frame_t *frame = NULL;
+    int fop_errno = 0;
 
-        frame = data;
+    frame = data;
 
-        local = frame->local;
+    local = frame->local;
 
-        /* This function is 'synchrounous', hence if it returns,
-           we are done with the task */
-        ret = dht_migrate_file (THIS, &local->loc, local->rebalance.from_subvol,
-                                local->rebalance.target_node, local->flags,
-                                &fop_errno);
+    /* This function is 'synchrounous', hence if it returns,
+       we are done with the task */
+    ret = dht_migrate_file(THIS, &local->loc, local->rebalance.from_subvol,
+                           local->rebalance.target_node, local->flags,
+                           &fop_errno);
 
-        return ret;
+    return ret;
 }
 
 static int
-rebalance_task_completion (int op_ret, call_frame_t *sync_frame, void *data)
+rebalance_task_completion(int op_ret, call_frame_t *sync_frame, void *data)
 {
-        int32_t       op_errno   = EINVAL;
-
-        if (op_ret == -1) {
-                /* Failure of migration process, mostly due to write process.
-                   as we can't preserve the exact errno, lets say there was
-                   no space to migrate-data
-                */
-                op_errno = ENOSPC;
-        } else if (op_ret == 1) {
-                /* migration didn't happen, but is not a failure, let the user
-                   understand that he doesn't have permission to migrate the
-                   file.
-                */
-                op_ret = -1;
-                op_errno = EPERM;
-        } else if (op_ret != 0) {
-                op_errno = -op_ret;
-                op_ret = -1;
-        }
+    int32_t op_errno = EINVAL;
 
-        DHT_STACK_UNWIND (setxattr, sync_frame, op_ret, op_errno, NULL);
-        return 0;
+    if (op_ret == -1) {
+        /* Failure of migration process, mostly due to write process.
+           as we can't preserve the exact errno, lets say there was
+           no space to migrate-data
+        */
+        op_errno = ENOSPC;
+    } else if (op_ret == 1) {
+        /* migration didn't happen, but is not a failure, let the user
+           understand that he doesn't have permission to migrate the
+           file.
+        */
+        op_ret = -1;
+        op_errno = EPERM;
+    } else if (op_ret != 0) {
+        op_errno = -op_ret;
+        op_ret = -1;
+    }
+
+    DHT_STACK_UNWIND(setxattr, sync_frame, op_ret, op_errno, NULL);
+    return 0;
 }
 
 int
-dht_start_rebalance_task (xlator_t *this, call_frame_t *frame)
+dht_start_rebalance_task(xlator_t *this, call_frame_t *frame)
 {
-        int           ret   = -1;
+    int ret = -1;
 
-        ret = synctask_new (this->ctx->env, rebalance_task,
-                            rebalance_task_completion,
-                            frame, frame);
-        return ret;
+    ret = synctask_new(this->ctx->env, rebalance_task,
+                       rebalance_task_completion, frame, frame);
+    return ret;
 }
 
-
 int
-gf_listener_stop (xlator_t *this)
+gf_listener_stop(xlator_t *this)
 {
-        glusterfs_ctx_t  *ctx = NULL;
-        cmd_args_t       *cmd_args = NULL;
-        int              ret = 0;
-
-        ctx = this->ctx;
-        GF_ASSERT (ctx);
-        cmd_args = &ctx->cmd_args;
-        if (cmd_args->sock_file) {
-                ret = sys_unlink (cmd_args->sock_file);
-                if (ret && (ENOENT == errno)) {
-                        ret = 0;
-                }
-        }
-
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, errno,
-                        DHT_MSG_SOCKET_ERROR,
-                        "Failed to unlink listener "
-                        "socket %s", cmd_args->sock_file);
-        }
-        return ret;
+    glusterfs_ctx_t *ctx = NULL;
+    cmd_args_t *cmd_args = NULL;
+    int ret = 0;
+
+    ctx = this->ctx;
+    GF_ASSERT(ctx);
+    cmd_args = &ctx->cmd_args;
+    if (cmd_args->sock_file) {
+        ret = sys_unlink(cmd_args->sock_file);
+        if (ret && (ENOENT == errno)) {
+            ret = 0;
+        }
+    }
+
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, errno, DHT_MSG_SOCKET_ERROR,
+               "Failed to unlink listener "
+               "socket %s",
+               cmd_args->sock_file);
+    }
+    return ret;
 }
 
 void
-dht_build_root_inode (xlator_t *this, inode_t **inode)
+dht_build_root_inode(xlator_t *this, inode_t **inode)
 {
-        inode_table_t    *itable        = NULL;
-        uuid_t            root_gfid     = {0, };
+    inode_table_t *itable = NULL;
+    uuid_t root_gfid = {
+        0,
+    };
 
-        itable = inode_table_new (0, this);
-        if (!itable)
-                return;
+    itable = inode_table_new(0, this);
+    if (!itable)
+        return;
 
-        root_gfid[15] = 1;
-        *inode = inode_find (itable, root_gfid);
+    root_gfid[15] = 1;
+    *inode = inode_find(itable, root_gfid);
 }
 
 void
-dht_build_root_loc (inode_t *inode, loc_t *loc)
+dht_build_root_loc(inode_t *inode, loc_t *loc)
 {
-        loc->path = "/";
-        loc->inode = inode;
-        loc->inode->ia_type = IA_IFDIR;
-        memset (loc->gfid, 0, 16);
-        loc->gfid[15] = 1;
+    loc->path = "/";
+    loc->inode = inode;
+    loc->inode->ia_type = IA_IFDIR;
+    memset(loc->gfid, 0, 16);
+    loc->gfid[15] = 1;
 }
 
 /* return values: 1 -> error, bug ignore and continue
                   0 -> proceed
                  -1 -> error, handle it */
 int32_t
-gf_defrag_handle_migrate_error (int32_t op_errno, gf_defrag_info_t *defrag)
+gf_defrag_handle_migrate_error(int32_t op_errno, gf_defrag_info_t *defrag)
 {
-        int ret = 0;
-        /* if errno is not ENOTCONN, we can still continue
-           with rebalance process */
-        if (op_errno != ENOTCONN) {
-                ret = 1;
-                goto out;
-        }
-
-        if (op_errno == ENOTCONN) {
-                /* Most probably mount point went missing (mostly due
-                   to a brick down), say rebalance failure to user,
-                   let him restart it if everything is fine */
-                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
-                ret = -1;
-                goto out;
-        }
+    int ret = 0;
+    /* if errno is not ENOTCONN, we can still continue
+       with rebalance process */
+    if (op_errno != ENOTCONN) {
+        ret = 1;
+        goto out;
+    }
+
+    if (op_errno == ENOTCONN) {
+        /* Most probably mount point went missing (mostly due
+           to a brick down), say rebalance failure to user,
+           let him restart it if everything is fine */
+        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+        ret = -1;
+        goto out;
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
 static gf_boolean_t
-gf_defrag_pattern_match (gf_defrag_info_t *defrag, char *name, uint64_t size)
+gf_defrag_pattern_match(gf_defrag_info_t *defrag, char *name, uint64_t size)
 {
-        gf_defrag_pattern_list_t *trav = NULL;
-        gf_boolean_t               match = _gf_false;
-        gf_boolean_t               ret = _gf_false;
+    gf_defrag_pattern_list_t *trav = NULL;
+    gf_boolean_t match = _gf_false;
+    gf_boolean_t ret = _gf_false;
 
-        GF_VALIDATE_OR_GOTO ("dht", defrag, out);
+    GF_VALIDATE_OR_GOTO("dht", defrag, out);
 
-        trav = defrag->defrag_pattern;
-        while (trav) {
-                if (!fnmatch (trav->path_pattern, name, FNM_NOESCAPE)) {
-                        match = _gf_true;
-                        break;
-                }
-                trav = trav->next;
+    trav = defrag->defrag_pattern;
+    while (trav) {
+        if (!fnmatch(trav->path_pattern, name, FNM_NOESCAPE)) {
+            match = _gf_true;
+            break;
         }
+        trav = trav->next;
+    }
 
-        if ((match == _gf_true) && (size >= trav->size))
-                ret = _gf_true;
+    if ((match == _gf_true) && (size >= trav->size))
+        ret = _gf_true;
 
- out:
-        return ret;
+out:
+    return ret;
 }
 
-int dht_dfreaddirp_done (dht_dfoffset_ctx_t *offset_var, int cnt) {
-
-        int i;
-        int result = 1;
+int
+dht_dfreaddirp_done(dht_dfoffset_ctx_t *offset_var, int cnt)
+{
+    int i;
+    int result = 1;
 
-        for (i = 0; i < cnt; i++) {
-                if (offset_var[i].readdir_done == 0) {
-                        result = 0;
-                        break;
-                }
+    for (i = 0; i < cnt; i++) {
+        if (offset_var[i].readdir_done == 0) {
+            result = 0;
+            break;
         }
-        return result;
+    }
+    return result;
 }
 
-int static
-gf_defrag_ctx_subvols_init (dht_dfoffset_ctx_t *offset_var, xlator_t *this) {
-
-        int i;
-        dht_conf_t *conf = NULL;
+int static gf_defrag_ctx_subvols_init(dht_dfoffset_ctx_t *offset_var,
+                                      xlator_t *this)
+{
+    int i;
+    dht_conf_t *conf = NULL;
 
-        conf = this->private;
+    conf = this->private;
 
-        if (!conf)
-               return -1;
+    if (!conf)
+        return -1;
 
-        for (i = 0; i < conf->local_subvols_cnt; i++) {
-               offset_var[i].this = conf->local_subvols[i];
-               offset_var[i].offset = (off_t) 0;
-               offset_var[i].readdir_done = 0;
-        }
+    for (i = 0; i < conf->local_subvols_cnt; i++) {
+        offset_var[i].this = conf->local_subvols[i];
+        offset_var[i].offset = (off_t)0;
+        offset_var[i].readdir_done = 0;
+    }
 
-        return 0;
+    return 0;
 }
 
-
 static int
-dht_get_first_non_null_index (subvol_nodeuuids_info_t *entry)
+dht_get_first_non_null_index(subvol_nodeuuids_info_t *entry)
 {
-        int      i        = 0;
-        int      index    = 0;
+    int i = 0;
+    int index = 0;
 
-        for (i = 0; i < entry->count; i++) {
-                if (!gf_uuid_is_null (entry->elements[i].uuid)) {
-                        index = i;
-                        goto out;
-                }
+    for (i = 0; i < entry->count; i++) {
+        if (!gf_uuid_is_null(entry->elements[i].uuid)) {
+            index = i;
+            goto out;
         }
+    }
 
-        if (i == entry->count) {
-                index = -1;
-        }
+    if (i == entry->count) {
+        index = -1;
+    }
 out:
-        return index;
+    return index;
 }
 
-
 /* Return value
  * 0 : this node does not migrate the file
  * 1 : this node migrates the file
@@ -2688,1022 +2595,986 @@ out:
  */
 
 int
-gf_defrag_should_i_migrate (xlator_t *this, int local_subvol_index, uuid_t gfid)
+gf_defrag_should_i_migrate(xlator_t *this, int local_subvol_index, uuid_t gfid)
 {
-        int         ret               = 0;
-        int         i                 = local_subvol_index;
-        char       *str               = NULL;
-        uint32_t    hashval           = 0;
-        int32_t     index             = 0;
-        dht_conf_t *conf              = NULL;
-        char        buf[UUID_CANONICAL_FORM_LEN + 1] = {0, };
-        subvol_nodeuuids_info_t *entry = NULL;
-
-
-        conf = this->private;
-
-        /* Pure distribute. A subvol in this case
-            will be handled by only one node */
-
-        entry = &(conf->local_nodeuuids[i]);
-        if (entry->count == 1) {
-                return 1;
-        }
-
-        str = uuid_utoa_r (gfid, buf);
-        ret = dht_hash_compute (this, 0, str, &hashval);
-        if (ret == 0) {
-                index = (hashval % entry->count);
-                if (entry->elements[index].info
-                                 == REBAL_NODEUUID_MINE) {
-                        /* Index matches this node's nodeuuid.*/
-                        ret = 1;
-                        goto out;
-                }
-
-                /* Brick down - some other node has to migrate these files*/
-                if (gf_uuid_is_null (entry->elements[index].uuid)) {
-                        /* Fall back to the first non-null index */
-                        index = dht_get_first_non_null_index (entry);
-
-                        if (index == -1) {
-                                /* None of the bricks in the subvol are up.
-                                 * CHILD_DOWN will kill the process soon */
+    int ret = 0;
+    int i = local_subvol_index;
+    char *str = NULL;
+    uint32_t hashval = 0;
+    int32_t index = 0;
+    dht_conf_t *conf = NULL;
+    char buf[UUID_CANONICAL_FORM_LEN + 1] = {
+        0,
+    };
+    subvol_nodeuuids_info_t *entry = NULL;
+
+    conf = this->private;
+
+    /* Pure distribute. A subvol in this case
+        will be handled by only one node */
+
+    entry = &(conf->local_nodeuuids[i]);
+    if (entry->count == 1) {
+        return 1;
+    }
+
+    str = uuid_utoa_r(gfid, buf);
+    ret = dht_hash_compute(this, 0, str, &hashval);
+    if (ret == 0) {
+        index = (hashval % entry->count);
+        if (entry->elements[index].info == REBAL_NODEUUID_MINE) {
+            /* Index matches this node's nodeuuid.*/
+            ret = 1;
+            goto out;
+        }
+
+        /* Brick down - some other node has to migrate these files*/
+        if (gf_uuid_is_null(entry->elements[index].uuid)) {
+            /* Fall back to the first non-null index */
+            index = dht_get_first_non_null_index(entry);
+
+            if (index == -1) {
+                /* None of the bricks in the subvol are up.
+                 * CHILD_DOWN will kill the process soon */
 
-                                return 0;
-                        }
+                return 0;
+            }
 
-                        if (entry->elements[index].info == REBAL_NODEUUID_MINE) {
-                                /* Index matches this node's nodeuuid.*/
-                                ret = 1;
-                                goto out;
-                        }
-                }
+            if (entry->elements[index].info == REBAL_NODEUUID_MINE) {
+                /* Index matches this node's nodeuuid.*/
+                ret = 1;
+                goto out;
+            }
         }
+    }
 out:
-        return ret;
+    return ret;
 }
 
-
 int
-gf_defrag_migrate_single_file (void *opaque)
+gf_defrag_migrate_single_file(void *opaque)
 {
-        xlator_t                *this           = NULL;
-        dht_conf_t              *conf           = NULL;
-        gf_defrag_info_t        *defrag         = NULL;
-        int                      ret            = 0;
-        gf_dirent_t             *entry          = NULL;
-        struct timeval           start          = {0,};
-        loc_t                    entry_loc      = {0,};
-        loc_t                   *loc            = NULL;
-        struct iatt              iatt           = {0,};
-        dict_t                  *migrate_data   = NULL;
-        struct timeval           end            = {0,};
-        double                   elapsed        = {0,};
-        struct dht_container    *rebal_entry    = NULL;
-        inode_t                 *inode          = NULL;
-        xlator_t                *hashed_subvol  = NULL;
-        xlator_t                *cached_subvol  = NULL;
-        call_frame_t            *statfs_frame   = NULL;
-        xlator_t                *old_THIS       = NULL;
-        data_t                  *tmp            = NULL;
-        int                      fop_errno      = 0;
-        gf_dht_migrate_data_type_t rebal_type   = GF_DHT_MIGRATE_DATA;
-        char                     value[MAX_REBAL_TYPE_SIZE]    = {0,};
-        struct iatt             *iatt_ptr       = NULL;
-        gf_boolean_t            update_skippedcount = _gf_true;
-        int                     i = 0;
-
-        rebal_entry = (struct dht_container *)opaque;
-        if (!rebal_entry) {
-                gf_log ("DHT", GF_LOG_ERROR, "rebal_entry is NULL");
-                ret = -1;
-                goto out;
-        }
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    int ret = 0;
+    gf_dirent_t *entry = NULL;
+    struct timeval start = {
+        0,
+    };
+    loc_t entry_loc = {
+        0,
+    };
+    loc_t *loc = NULL;
+    struct iatt iatt = {
+        0,
+    };
+    dict_t *migrate_data = NULL;
+    struct timeval end = {
+        0,
+    };
+    double elapsed = {
+        0,
+    };
+    struct dht_container *rebal_entry = NULL;
+    inode_t *inode = NULL;
+    xlator_t *hashed_subvol = NULL;
+    xlator_t *cached_subvol = NULL;
+    call_frame_t *statfs_frame = NULL;
+    xlator_t *old_THIS = NULL;
+    data_t *tmp = NULL;
+    int fop_errno = 0;
+    gf_dht_migrate_data_type_t rebal_type = GF_DHT_MIGRATE_DATA;
+    char value[MAX_REBAL_TYPE_SIZE] = {
+        0,
+    };
+    struct iatt *iatt_ptr = NULL;
+    gf_boolean_t update_skippedcount = _gf_true;
+    int i = 0;
+
+    rebal_entry = (struct dht_container *)opaque;
+    if (!rebal_entry) {
+        gf_log("DHT", GF_LOG_ERROR, "rebal_entry is NULL");
+        ret = -1;
+        goto out;
+    }
 
-        this = rebal_entry->this;
+    this = rebal_entry->this;
 
-        conf = this->private;
+    conf = this->private;
 
-        defrag = conf->defrag;
+    defrag = conf->defrag;
 
-        loc = rebal_entry->parent_loc;
+    loc = rebal_entry->parent_loc;
 
-        migrate_data = rebal_entry->migrate_data;
+    migrate_data = rebal_entry->migrate_data;
 
-        entry = rebal_entry->df_entry;
-        iatt_ptr = &entry->d_stat;
+    entry = rebal_entry->df_entry;
+    iatt_ptr = &entry->d_stat;
 
-        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
-                ret = -1;
-                goto out;
-        }
-
-        if (defrag->stats == _gf_true) {
-                gettimeofday (&start, NULL);
-        }
-
-        if (defrag->defrag_pattern &&
-            (gf_defrag_pattern_match (defrag, entry->d_name,
-                                      entry->d_stat.ia_size) == _gf_false)) {
-                gf_log (this->name, GF_LOG_ERROR, "pattern_match failed");
-                goto out;
-        }
-
-        memset (&entry_loc, 0, sizeof (entry_loc));
-
-        ret = dht_build_child_loc (this, &entry_loc, loc, entry->d_name);
-        if (ret) {
-                LOCK (&defrag->lock);
-                {
-                        defrag->total_failures += 1;
-                }
-                UNLOCK (&defrag->lock);
+    if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
+        ret = -1;
+        goto out;
+    }
 
-                ret = 0;
+    if (defrag->stats == _gf_true) {
+        gettimeofday(&start, NULL);
+    }
 
-                gf_log (this->name, GF_LOG_ERROR, "Child loc build failed");
+    if (defrag->defrag_pattern &&
+        (gf_defrag_pattern_match(defrag, entry->d_name,
+                                 entry->d_stat.ia_size) == _gf_false)) {
+        gf_log(this->name, GF_LOG_ERROR, "pattern_match failed");
+        goto out;
+    }
 
-                goto out;
-        }
+    memset(&entry_loc, 0, sizeof(entry_loc));
 
-        if (!gf_defrag_should_i_migrate (this, rebal_entry->local_subvol_index,
-                                         entry->d_stat.ia_gfid)) {
-                gf_msg_debug (this->name, 0, "Don't migrate %s ",
-                              entry_loc.path);
-                goto out;
+    ret = dht_build_child_loc(this, &entry_loc, loc, entry->d_name);
+    if (ret) {
+        LOCK(&defrag->lock);
+        {
+            defrag->total_failures += 1;
         }
+        UNLOCK(&defrag->lock);
 
-        gf_uuid_copy (entry_loc.gfid, entry->d_stat.ia_gfid);
+        ret = 0;
 
-        gf_uuid_copy (entry_loc.pargfid, loc->gfid);
+        gf_log(this->name, GF_LOG_ERROR, "Child loc build failed");
 
-        ret = syncop_lookup (this, &entry_loc, &iatt, NULL, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_MIGRATE_FILE_FAILED,
-                        "Migrate file failed: %s lookup failed",
-                        entry_loc.path);
-
-                /* Increase failure count only for remove-brick op, so that
-                 * user is warned to check the removed-brick for any files left
-                 * unmigrated
-                 */
-                if (conf->decommission_subvols_cnt) {
-                        LOCK (&defrag->lock);
-                        {
-                                defrag->total_failures += 1;
-                        }
-                        UNLOCK (&defrag->lock);
-                }
+        goto out;
+    }
 
-                ret = 0;
-                goto out;
-        }
+    if (!gf_defrag_should_i_migrate(this, rebal_entry->local_subvol_index,
+                                    entry->d_stat.ia_gfid)) {
+        gf_msg_debug(this->name, 0, "Don't migrate %s ", entry_loc.path);
+        goto out;
+    }
 
-        iatt_ptr = &iatt;
+    gf_uuid_copy(entry_loc.gfid, entry->d_stat.ia_gfid);
 
-        hashed_subvol = dht_subvol_get_hashed (this, &entry_loc);
-        if (!hashed_subvol) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                        "Failed to get hashed subvol for %s",
-                        entry_loc.path);
-                ret = 0;
-                goto out;
-        }
-
-        cached_subvol = dht_subvol_get_cached (this, entry_loc.inode);
-        if (!cached_subvol) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_CACHED_SUBVOL_GET_FAILED,
-                        "Failed to get cached subvol for %s",
-                        entry_loc.path);
-
-                ret = 0;
-                goto out;
-        }
+    gf_uuid_copy(entry_loc.pargfid, loc->gfid);
 
-        if (hashed_subvol == cached_subvol) {
-                ret = 0;
-                goto out;
-        }
+    ret = syncop_lookup(this, &entry_loc, &iatt, NULL, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_MIGRATE_FILE_FAILED,
+               "Migrate file failed: %s lookup failed", entry_loc.path);
 
-        inode = inode_link (entry_loc.inode, entry_loc.parent, entry->d_name, &iatt);
-        inode_unref (entry_loc.inode);
-        /* use the inode returned by inode_link */
-        entry_loc.inode = inode;
-
-        old_THIS = THIS;
-        THIS = this;
-        statfs_frame = create_frame (this, this->ctx->pool);
-        if (!statfs_frame) {
-                gf_msg (this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, ENOMEM,
-                        "Insufficient memory. Frame creation failed");
-                ret = -1;
-                goto out;
+        /* Increase failure count only for remove-brick op, so that
+         * user is warned to check the removed-brick for any files left
+         * unmigrated
+         */
+        if (conf->decommission_subvols_cnt) {
+            LOCK(&defrag->lock);
+            {
+                defrag->total_failures += 1;
+            }
+            UNLOCK(&defrag->lock);
         }
 
-        /* async statfs information for honoring min-free-disk */
-        dht_get_du_info (statfs_frame, this, loc);
-        THIS = old_THIS;
+        ret = 0;
+        goto out;
+    }
 
-        tmp = dict_get (migrate_data, GF_XATTR_FILE_MIGRATE_KEY);
-        if (tmp) {
-                memcpy (value, tmp->data, tmp->len);
-                if (strcmp (value, "force") == 0)
-                        rebal_type = GF_DHT_MIGRATE_DATA_EVEN_IF_LINK_EXISTS;
+    iatt_ptr = &iatt;
 
-                if (conf->decommission_in_progress)
-                        rebal_type = GF_DHT_MIGRATE_HARDLINK;
-        }
+    hashed_subvol = dht_subvol_get_hashed(this, &entry_loc);
+    if (!hashed_subvol) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+               "Failed to get hashed subvol for %s", entry_loc.path);
+        ret = 0;
+        goto out;
+    }
 
-        ret = dht_migrate_file (this, &entry_loc, cached_subvol,
-                                hashed_subvol, rebal_type, &fop_errno);
-        if (ret == 1) {
-                if (fop_errno == ENOSPC) {
-                        gf_msg_debug (this->name, 0, "migrate-data skipped for"
-                                      " %s due to space constraints",
-                                      entry_loc.path);
-
-                        /* For remove-brick case if the source is not one of the
-                        * removed-brick, do not mark the error as failure */
-                        if (conf->decommission_subvols_cnt) {
-                                for (i = 0; i < conf->subvolume_cnt; i++) {
-                                        if (conf->decommissioned_bricks[i] == cached_subvol) {
-                                                LOCK (&defrag->lock);
-                                                {
-                                                    defrag->total_failures += 1;
-                                                    update_skippedcount = _gf_false;
-                                                }
-                                                UNLOCK (&defrag->lock);
-
-                                                break;
-                                        }
-                                }
-                        }
+    cached_subvol = dht_subvol_get_cached(this, entry_loc.inode);
+    if (!cached_subvol) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_CACHED_SUBVOL_GET_FAILED,
+               "Failed to get cached subvol for %s", entry_loc.path);
 
-                        if (update_skippedcount) {
-                                LOCK (&defrag->lock);
-                                {
-                                        defrag->skipped += 1;
-                                }
-                                UNLOCK (&defrag->lock);
-
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_MIGRATE_FILE_SKIPPED,
-                                        "File migration skipped for %s.",
-                                        entry_loc.path);
-                        }
+        ret = 0;
+        goto out;
+    }
 
-                } else if (fop_errno == ENOTSUP) {
-                        gf_msg_debug (this->name, 0, "migrate-data skipped for"
-                                      " hardlink %s ", entry_loc.path);
-                        LOCK (&defrag->lock);
+    if (hashed_subvol == cached_subvol) {
+        ret = 0;
+        goto out;
+    }
+
+    inode = inode_link(entry_loc.inode, entry_loc.parent, entry->d_name, &iatt);
+    inode_unref(entry_loc.inode);
+    /* use the inode returned by inode_link */
+    entry_loc.inode = inode;
+
+    old_THIS = THIS;
+    THIS = this;
+    statfs_frame = create_frame(this, this->ctx->pool);
+    if (!statfs_frame) {
+        gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, ENOMEM,
+               "Insufficient memory. Frame creation failed");
+        ret = -1;
+        goto out;
+    }
+
+    /* async statfs information for honoring min-free-disk */
+    dht_get_du_info(statfs_frame, this, loc);
+    THIS = old_THIS;
+
+    tmp = dict_get(migrate_data, GF_XATTR_FILE_MIGRATE_KEY);
+    if (tmp) {
+        memcpy(value, tmp->data, tmp->len);
+        if (strcmp(value, "force") == 0)
+            rebal_type = GF_DHT_MIGRATE_DATA_EVEN_IF_LINK_EXISTS;
+
+        if (conf->decommission_in_progress)
+            rebal_type = GF_DHT_MIGRATE_HARDLINK;
+    }
+
+    ret = dht_migrate_file(this, &entry_loc, cached_subvol, hashed_subvol,
+                           rebal_type, &fop_errno);
+    if (ret == 1) {
+        if (fop_errno == ENOSPC) {
+            gf_msg_debug(this->name, 0,
+                         "migrate-data skipped for"
+                         " %s due to space constraints",
+                         entry_loc.path);
+
+            /* For remove-brick case if the source is not one of the
+             * removed-brick, do not mark the error as failure */
+            if (conf->decommission_subvols_cnt) {
+                for (i = 0; i < conf->subvolume_cnt; i++) {
+                    if (conf->decommissioned_bricks[i] == cached_subvol) {
+                        LOCK(&defrag->lock);
                         {
-                                defrag->skipped += 1;
+                            defrag->total_failures += 1;
+                            update_skippedcount = _gf_false;
                         }
-                        UNLOCK (&defrag->lock);
+                        UNLOCK(&defrag->lock);
 
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_MIGRATE_FILE_SKIPPED,
-                                "File migration skipped for %s.",
-                                entry_loc.path);
+                        break;
+                    }
                 }
+            }
 
-                ret = 0;
-                goto out;
-        } else if (ret < 0) {
-                if (fop_errno != EEXIST) {
-                        gf_msg (this->name, GF_LOG_ERROR, fop_errno,
-                                DHT_MSG_MIGRATE_FILE_FAILED,
-                                "migrate-data failed for %s", entry_loc.path);
-
-                        LOCK (&defrag->lock);
-                        {
-                                defrag->total_failures += 1;
-                        }
-                        UNLOCK (&defrag->lock);
-
+            if (update_skippedcount) {
+                LOCK(&defrag->lock);
+                {
+                    defrag->skipped += 1;
                 }
+                UNLOCK(&defrag->lock);
 
-                ret = gf_defrag_handle_migrate_error (fop_errno, defrag);
+                gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_MIGRATE_FILE_SKIPPED,
+                       "File migration skipped for %s.", entry_loc.path);
+            }
 
-                if (!ret) {
-                        gf_msg(this->name, GF_LOG_ERROR, fop_errno,
-                               DHT_MSG_MIGRATE_FILE_FAILED,
-                               "migrate-data on %s failed:", entry_loc.path);
-                } else if (ret == 1) {
-                        ret = 0;
-                }
+        } else if (fop_errno == ENOTSUP) {
+            gf_msg_debug(this->name, 0,
+                         "migrate-data skipped for"
+                         " hardlink %s ",
+                         entry_loc.path);
+            LOCK(&defrag->lock);
+            {
+                defrag->skipped += 1;
+            }
+            UNLOCK(&defrag->lock);
 
-                goto out;
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_MIGRATE_FILE_SKIPPED,
+                   "File migration skipped for %s.", entry_loc.path);
         }
 
-        LOCK (&defrag->lock);
-        {
-                defrag->total_files += 1;
-                defrag->total_data += iatt.ia_size;
-        }
-        UNLOCK (&defrag->lock);
-
-        if (defrag->stats == _gf_true) {
-                gettimeofday (&end, NULL);
-                elapsed = (end.tv_sec - start.tv_sec) * 1e6 +
-                          (end.tv_usec - start.tv_usec);
-                gf_log (this->name, GF_LOG_INFO, "Migration of "
-                        "file:%s size:%"PRIu64" bytes took %.2f"
-                        "secs and ret: %d", entry_loc.name,
-                        iatt.ia_size, elapsed/1e6, ret);
+        ret = 0;
+        goto out;
+    } else if (ret < 0) {
+        if (fop_errno != EEXIST) {
+            gf_msg(this->name, GF_LOG_ERROR, fop_errno,
+                   DHT_MSG_MIGRATE_FILE_FAILED, "migrate-data failed for %s",
+                   entry_loc.path);
+
+            LOCK(&defrag->lock);
+            {
+                defrag->total_failures += 1;
+            }
+            UNLOCK(&defrag->lock);
         }
 
+        ret = gf_defrag_handle_migrate_error(fop_errno, defrag);
+
+        if (!ret) {
+            gf_msg(this->name, GF_LOG_ERROR, fop_errno,
+                   DHT_MSG_MIGRATE_FILE_FAILED,
+                   "migrate-data on %s failed:", entry_loc.path);
+        } else if (ret == 1) {
+            ret = 0;
+        }
+
+        goto out;
+    }
+
+    LOCK(&defrag->lock);
+    {
+        defrag->total_files += 1;
+        defrag->total_data += iatt.ia_size;
+    }
+    UNLOCK(&defrag->lock);
+
+    if (defrag->stats == _gf_true) {
+        gettimeofday(&end, NULL);
+        elapsed = (end.tv_sec - start.tv_sec) * 1e6 +
+                  (end.tv_usec - start.tv_usec);
+        gf_log(this->name, GF_LOG_INFO,
+               "Migration of "
+               "file:%s size:%" PRIu64
+               " bytes took %.2f"
+               "secs and ret: %d",
+               entry_loc.name, iatt.ia_size, elapsed / 1e6, ret);
+    }
+
 out:
-        if (statfs_frame) {
-                STACK_DESTROY (statfs_frame->root);
-        }
+    if (statfs_frame) {
+        STACK_DESTROY(statfs_frame->root);
+    }
 
-        if (iatt_ptr) {
-                LOCK (&defrag->lock);
-                {
-                        defrag->size_processed += iatt_ptr->ia_size;
-                }
-                UNLOCK (&defrag->lock);
+    if (iatt_ptr) {
+        LOCK(&defrag->lock);
+        {
+            defrag->size_processed += iatt_ptr->ia_size;
         }
-        loc_wipe (&entry_loc);
-
-        return ret;
+        UNLOCK(&defrag->lock);
+    }
+    loc_wipe(&entry_loc);
 
+    return ret;
 }
 
 void *
-gf_defrag_task (void *opaque)
+gf_defrag_task(void *opaque)
 {
-        struct list_head        *q_head         = NULL;
-        struct dht_container    *iterator       = NULL;
-        gf_defrag_info_t        *defrag         = NULL;
-        int                      ret            = 0;
-        pid_t                    pid            = GF_CLIENT_PID_DEFRAG;
-
-        defrag = (gf_defrag_info_t *)opaque;
-        if (!defrag) {
-                gf_msg ("dht", GF_LOG_ERROR, 0, 0, "defrag is NULL");
-                goto out;
+    struct list_head *q_head = NULL;
+    struct dht_container *iterator = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    int ret = 0;
+    pid_t pid = GF_CLIENT_PID_DEFRAG;
+
+    defrag = (gf_defrag_info_t *)opaque;
+    if (!defrag) {
+        gf_msg("dht", GF_LOG_ERROR, 0, 0, "defrag is NULL");
+        goto out;
+    }
+
+    syncopctx_setfspid(&pid);
+
+    q_head = &(defrag->queue[0].list);
+
+    /* The following while loop will dequeue one entry from the defrag->queue
+       under lock. We will update the defrag->global_error only when there
+       is an error which is critical to stop the rebalance process. The stop
+       message will be intimated to other migrator threads by setting the
+       defrag->defrag_status to GF_DEFRAG_STATUS_FAILED.
+
+       In defrag->queue, a low watermark (MIN_MIGRATE_QUEUE_COUNT) is
+       maintained so that crawler does not starve the file migration
+       workers and a high watermark (MAX_MIGRATE_QUEUE_COUNT) so that
+       crawler does not go far ahead in filling up the queue.
+     */
+
+    while (_gf_true) {
+        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
+            pthread_cond_broadcast(&defrag->rebalance_crawler_alarm);
+            pthread_cond_broadcast(&defrag->parallel_migration_cond);
+            goto out;
         }
 
-        syncopctx_setfspid (&pid);
+        pthread_mutex_lock(&defrag->dfq_mutex);
+        {
+            /*Throttle down:
+              If the reconfigured count is less than current thread
+              count, then the current thread will sleep */
+
+            /*TODO: Need to refactor the following block to work
+             *under defrag->lock. For now access
+             * defrag->current_thread_count and rthcount under
+             * dfq_mutex lock */
+            while (!defrag->crawl_done && (defrag->recon_thread_count <
+                                           defrag->current_thread_count)) {
+                defrag->current_thread_count--;
+                gf_msg_debug("DHT", 0,
+                             "Thread sleeping. "
+                             "current thread count: %d",
+                             defrag->current_thread_count);
+
+                pthread_cond_wait(&defrag->df_wakeup_thread,
+                                  &defrag->dfq_mutex);
+
+                defrag->current_thread_count++;
+                gf_msg_debug("DHT", 0,
+                             "Thread wokeup. "
+                             "current thread count: %d",
+                             defrag->current_thread_count);
+            }
+
+            if (defrag->q_entry_count) {
+                iterator = list_entry(q_head->next, typeof(*iterator), list);
+
+                gf_msg_debug("DHT", 0,
+                             "picking entry "
+                             "%s",
+                             iterator->df_entry->d_name);
+
+                list_del_init(&(iterator->list));
+
+                defrag->q_entry_count--;
+
+                if ((defrag->q_entry_count < MIN_MIGRATE_QUEUE_COUNT) &&
+                    defrag->wakeup_crawler) {
+                    pthread_cond_broadcast(&defrag->rebalance_crawler_alarm);
+                }
+                pthread_mutex_unlock(&defrag->dfq_mutex);
+                ret = gf_defrag_migrate_single_file((void *)iterator);
 
-        q_head = &(defrag->queue[0].list);
+                /*Critical errors: ENOTCONN and ENOSPACE*/
+                if (ret) {
+                    dht_set_global_defrag_error(defrag, ret);
 
-       /* The following while loop will dequeue one entry from the defrag->queue
-          under lock. We will update the defrag->global_error only when there
-          is an error which is critical to stop the rebalance process. The stop
-          message will be intimated to other migrator threads by setting the
-          defrag->defrag_status to GF_DEFRAG_STATUS_FAILED.
+                    defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
 
-          In defrag->queue, a low watermark (MIN_MIGRATE_QUEUE_COUNT) is
-          maintained so that crawler does not starve the file migration
-          workers and a high watermark (MAX_MIGRATE_QUEUE_COUNT) so that
-          crawler does not go far ahead in filling up the queue.
-        */
+                    pthread_cond_broadcast(&defrag->rebalance_crawler_alarm);
 
-        while (_gf_true) {
+                    pthread_cond_broadcast(&defrag->parallel_migration_cond);
 
-                if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
-                        pthread_cond_broadcast (
-                                &defrag->rebalance_crawler_alarm);
-                        pthread_cond_broadcast (
-                                &defrag->parallel_migration_cond);
-                        goto out;
+                    goto out;
                 }
 
-                pthread_mutex_lock (&defrag->dfq_mutex);
-                {
-
-                        /*Throttle down:
-                          If the reconfigured count is less than current thread
-                          count, then the current thread will sleep */
-
-                        /*TODO: Need to refactor the following block to work
-                         *under defrag->lock. For now access
-                         * defrag->current_thread_count and rthcount under
-                         * dfq_mutex lock */
-                        while (!defrag->crawl_done &&
-                              (defrag->recon_thread_count <
-                                        defrag->current_thread_count)) {
-                                defrag->current_thread_count--;
-                                gf_msg_debug ("DHT", 0, "Thread sleeping. "
-                                              "current thread count: %d",
-                                              defrag->current_thread_count);
-
-                                pthread_cond_wait (
-                                           &defrag->df_wakeup_thread,
-                                           &defrag->dfq_mutex);
-
-                                defrag->current_thread_count++;
-                                gf_msg_debug ("DHT", 0, "Thread wokeup. "
-                                              "current thread count: %d",
-                                              defrag->current_thread_count);
-
-                        }
+                gf_defrag_free_container(iterator);
+
+                continue;
+            } else {
+                /* defrag->crawl_done flag is set means crawling
+                 file system is done and hence a list_empty when
+                 the above flag is set indicates there are no more
+                 entries to be added to the queue and rebalance is
+                 finished */
+
+                if (!defrag->crawl_done) {
+                    defrag->current_thread_count--;
+                    gf_msg_debug("DHT", 0,
+                                 "Thread "
+                                 "sleeping while  waiting "
+                                 "for migration entries. "
+                                 "current thread  count:%d",
+                                 defrag->current_thread_count);
+
+                    pthread_cond_wait(&defrag->parallel_migration_cond,
+                                      &defrag->dfq_mutex);
+                }
 
-                        if (defrag->q_entry_count) {
-                                iterator = list_entry (q_head->next,
-                                                typeof(*iterator), list);
-
-                                gf_msg_debug ("DHT", 0, "picking entry "
-                                              "%s", iterator->df_entry->d_name);
-
-                                list_del_init (&(iterator->list));
-
-                                defrag->q_entry_count--;
-
-                                if ((defrag->q_entry_count <
-                                        MIN_MIGRATE_QUEUE_COUNT) &&
-                                        defrag->wakeup_crawler) {
-                                        pthread_cond_broadcast (
-                                              &defrag->rebalance_crawler_alarm);
-                                }
-                                pthread_mutex_unlock (&defrag->dfq_mutex);
-                                ret = gf_defrag_migrate_single_file
-                                                        ((void *)iterator);
-
-                                /*Critical errors: ENOTCONN and ENOSPACE*/
-                                if (ret) {
-                                        dht_set_global_defrag_error
-                                                         (defrag, ret);
-
-                                        defrag->defrag_status =
-                                                       GF_DEFRAG_STATUS_FAILED;
-
-                                        pthread_cond_broadcast (
-                                             &defrag->rebalance_crawler_alarm);
-
-                                        pthread_cond_broadcast (
-                                             &defrag->parallel_migration_cond);
-
-                                        goto out;
-                                }
-
-                                gf_defrag_free_container (iterator);
-
-                                continue;
-                        } else {
-
-                        /* defrag->crawl_done flag is set means crawling
-                         file system is done and hence a list_empty when
-                         the above flag is set indicates there are no more
-                         entries to be added to the queue and rebalance is
-                         finished */
-
-                                if (!defrag->crawl_done) {
-
-                                        defrag->current_thread_count--;
-                                        gf_msg_debug ("DHT", 0, "Thread "
-                                                      "sleeping while  waiting "
-                                                      "for migration entries. "
-                                                      "current thread  count:%d",
-                                                      defrag->current_thread_count);
-
-                                        pthread_cond_wait (
-                                           &defrag->parallel_migration_cond,
-                                           &defrag->dfq_mutex);
-                                }
-
-                                if (defrag->crawl_done &&
-                                                 !defrag->q_entry_count) {
-                                        defrag->current_thread_count++;
-                                        gf_msg_debug ("DHT", 0, "Exiting thread");
-
-                                        pthread_cond_broadcast (
-                                             &defrag->parallel_migration_cond);
-                                        goto unlock;
-                                } else {
-                                        defrag->current_thread_count++;
-                                        gf_msg_debug ("DHT", 0, "Thread woke up"
-                                                      " as found migrating entries. "
-                                                      "current thread count:%d",
-                                                      defrag->current_thread_count);
-
-                                        pthread_mutex_unlock
-                                                 (&defrag->dfq_mutex);
-                                        continue;
-                                }
-                        }
+                if (defrag->crawl_done && !defrag->q_entry_count) {
+                    defrag->current_thread_count++;
+                    gf_msg_debug("DHT", 0, "Exiting thread");
 
+                    pthread_cond_broadcast(&defrag->parallel_migration_cond);
+                    goto unlock;
+                } else {
+                    defrag->current_thread_count++;
+                    gf_msg_debug("DHT", 0,
+                                 "Thread woke up"
+                                 " as found migrating entries. "
+                                 "current thread count:%d",
+                                 defrag->current_thread_count);
+
+                    pthread_mutex_unlock(&defrag->dfq_mutex);
+                    continue;
                 }
-unlock:
-                pthread_mutex_unlock (&defrag->dfq_mutex);
-                break;
+            }
         }
+    unlock:
+        pthread_mutex_unlock(&defrag->dfq_mutex);
+        break;
+    }
 out:
-        return NULL;
+    return NULL;
 }
 
-int static
-gf_defrag_get_entry (xlator_t *this, int i, struct dht_container **container,
-                     loc_t *loc, dht_conf_t *conf, gf_defrag_info_t *defrag,
-                     fd_t *fd, dict_t *migrate_data,
-                     struct dir_dfmeta *dir_dfmeta, dict_t *xattr_req,
-                     int *should_commit_hash, int *perrno)
+int static gf_defrag_get_entry(xlator_t *this, int i,
+                               struct dht_container **container, loc_t *loc,
+                               dht_conf_t *conf, gf_defrag_info_t *defrag,
+                               fd_t *fd, dict_t *migrate_data,
+                               struct dir_dfmeta *dir_dfmeta, dict_t *xattr_req,
+                               int *should_commit_hash, int *perrno)
 {
-        int                     ret             = -1;
-        char                    is_linkfile     = 0;
-        gf_dirent_t            *df_entry        = NULL;
-        struct dht_container   *tmp_container   = NULL;
+    int ret = -1;
+    char is_linkfile = 0;
+    gf_dirent_t *df_entry = NULL;
+    struct dht_container *tmp_container = NULL;
 
-        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
-                ret = -1;
-                goto out;
-        }
-
-        if (dir_dfmeta->offset_var[i].readdir_done == 1) {
-                ret = 0;
-                goto out;
-        }
-
-        if (dir_dfmeta->fetch_entries[i] == 1) {
-                ret = syncop_readdirp (conf->local_subvols[i], fd, 131072,
-                                       dir_dfmeta->offset_var[i].offset,
-                                       &(dir_dfmeta->equeue[i]),
-                                       xattr_req, NULL);
-                if (ret == 0) {
-                        dir_dfmeta->offset_var[i].readdir_done = 1;
-                        ret = 0;
-                        goto out;
-                }
-
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_WARNING, -ret,
-                                DHT_MSG_MIGRATE_DATA_FAILED,
-                                "Readdirp failed. Aborting data migration for "
-                                "directory: %s", loc->path);
-                        *perrno = -ret;
-                        ret = -1;
-                        goto out;
-                }
+    if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
+        ret = -1;
+        goto out;
+    }
 
-                if (list_empty (&(dir_dfmeta->equeue[i].list))) {
-                        dir_dfmeta->offset_var[i].readdir_done = 1;
-                        ret = 0;
-                        goto out;
-                }
+    if (dir_dfmeta->offset_var[i].readdir_done == 1) {
+        ret = 0;
+        goto out;
+    }
 
-                dir_dfmeta->fetch_entries[i] = 0;
+    if (dir_dfmeta->fetch_entries[i] == 1) {
+        ret = syncop_readdirp(conf->local_subvols[i], fd, 131072,
+                              dir_dfmeta->offset_var[i].offset,
+                              &(dir_dfmeta->equeue[i]), xattr_req, NULL);
+        if (ret == 0) {
+            dir_dfmeta->offset_var[i].readdir_done = 1;
+            ret = 0;
+            goto out;
         }
 
-        while (1) {
-
-                if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
-                        ret = -1;
-                        goto out;
-                }
-
-                df_entry = list_entry (dir_dfmeta->iterator[i]->next,
-                                       typeof (*df_entry), list);
-
-                if (&df_entry->list == dir_dfmeta->head[i]) {
-                        gf_dirent_free (&(dir_dfmeta->equeue[i]));
-                        INIT_LIST_HEAD (&(dir_dfmeta->equeue[i].list));
-                        dir_dfmeta->fetch_entries[i] = 1;
-                        dir_dfmeta->iterator[i] = dir_dfmeta->head[i];
-                        ret = 0;
-                        goto out;
-                }
-
-                dir_dfmeta->iterator[i] = dir_dfmeta->iterator[i]->next;
-
-                dir_dfmeta->offset_var[i].offset = df_entry->d_off;
-                if (!strcmp (df_entry->d_name, ".") ||
-                    !strcmp (df_entry->d_name, ".."))
-                        continue;
-
-                if (IA_ISDIR (df_entry->d_stat.ia_type)) {
-                        defrag->size_processed += df_entry->d_stat.ia_size;
-                        continue;
-                }
-
-                defrag->num_files_lookedup++;
-
-                if (defrag->defrag_pattern &&
-                    (gf_defrag_pattern_match (defrag, df_entry->d_name,
-                                              df_entry->d_stat.ia_size)
-                     == _gf_false)) {
-                        defrag->size_processed += df_entry->d_stat.ia_size;
-                        continue;
-                }
-
-                is_linkfile = check_is_linkfile (NULL, &df_entry->d_stat,
-                                                 df_entry->dict,
-                                                 conf->link_xattr_name);
-
-                if (is_linkfile) {
-                        /* No need to add linkto file to the queue for
-                           migration. Only the actual data file need to
-                           be checked for migration criteria.
-                        */
-
-                        gf_msg_debug (this->name, 0, "Skipping linkfile"
-                                      " %s on subvol: %s", df_entry->d_name,
-                                      conf->local_subvols[i]->name);
-                        continue;
-                }
-
-                /*Build Container Structure */
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_WARNING, -ret,
+                   DHT_MSG_MIGRATE_DATA_FAILED,
+                   "Readdirp failed. Aborting data migration for "
+                   "directory: %s",
+                   loc->path);
+            *perrno = -ret;
+            ret = -1;
+            goto out;
+        }
 
-                tmp_container =  GF_CALLOC (1, sizeof(struct dht_container),
-                                            gf_dht_mt_container_t);
-                if (!tmp_container) {
-                        gf_log (this->name, GF_LOG_ERROR, "Failed to allocate "
-                                "memory for container");
-                        ret = -1;
-                        goto out;
-                }
-                tmp_container->df_entry = gf_dirent_for_name (df_entry->d_name);
-                if (!tmp_container->df_entry) {
-                        gf_log (this->name, GF_LOG_ERROR, "Failed to allocate "
-                                "memory for df_entry");
-                        ret = -1;
-                        goto out;
-                }
+        if (list_empty(&(dir_dfmeta->equeue[i].list))) {
+            dir_dfmeta->offset_var[i].readdir_done = 1;
+            ret = 0;
+            goto out;
+        }
 
-                tmp_container->local_subvol_index = i;
+        dir_dfmeta->fetch_entries[i] = 0;
+    }
 
-                tmp_container->df_entry->d_stat = df_entry->d_stat;
+    while (1) {
+        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
+            ret = -1;
+            goto out;
+        }
 
-                tmp_container->df_entry->d_ino  = df_entry->d_ino;
+        df_entry = list_entry(dir_dfmeta->iterator[i]->next, typeof(*df_entry),
+                              list);
 
-                tmp_container->df_entry->d_type = df_entry->d_type;
+        if (&df_entry->list == dir_dfmeta->head[i]) {
+            gf_dirent_free(&(dir_dfmeta->equeue[i]));
+            INIT_LIST_HEAD(&(dir_dfmeta->equeue[i].list));
+            dir_dfmeta->fetch_entries[i] = 1;
+            dir_dfmeta->iterator[i] = dir_dfmeta->head[i];
+            ret = 0;
+            goto out;
+        }
 
-                tmp_container->df_entry->d_len  = df_entry->d_len;
+        dir_dfmeta->iterator[i] = dir_dfmeta->iterator[i]->next;
 
-                tmp_container->parent_loc = GF_CALLOC(1, sizeof(*loc),
-                                                      gf_dht_mt_loc_t);
-                if (!tmp_container->parent_loc) {
-                        gf_log (this->name, GF_LOG_ERROR, "Failed to allocate "
-                                "memory for loc");
-                        ret = -1;
-                        goto out;
-                }
+        dir_dfmeta->offset_var[i].offset = df_entry->d_off;
+        if (!strcmp(df_entry->d_name, ".") || !strcmp(df_entry->d_name, ".."))
+            continue;
 
+        if (IA_ISDIR(df_entry->d_stat.ia_type)) {
+            defrag->size_processed += df_entry->d_stat.ia_size;
+            continue;
+        }
 
-                ret = loc_copy (tmp_container->parent_loc, loc);
-                if (ret) {
-                        gf_log (this->name, GF_LOG_ERROR,
-                                "loc_copy failed");
-                        ret = -1;
-                        goto out;
-                }
+        defrag->num_files_lookedup++;
 
-                tmp_container->migrate_data = migrate_data;
+        if (defrag->defrag_pattern &&
+            (gf_defrag_pattern_match(defrag, df_entry->d_name,
+                                     df_entry->d_stat.ia_size) == _gf_false)) {
+            defrag->size_processed += df_entry->d_stat.ia_size;
+            continue;
+        }
 
-                tmp_container->this = this;
+        is_linkfile = check_is_linkfile(NULL, &df_entry->d_stat, df_entry->dict,
+                                        conf->link_xattr_name);
 
-                if (df_entry->dict)
-                        tmp_container->df_entry->dict =
-                                        dict_ref (df_entry->dict);
+        if (is_linkfile) {
+            /* No need to add linkto file to the queue for
+               migration. Only the actual data file need to
+               be checked for migration criteria.
+            */
 
-               /*Build Container Structure >> END*/
+            gf_msg_debug(this->name, 0,
+                         "Skipping linkfile"
+                         " %s on subvol: %s",
+                         df_entry->d_name, conf->local_subvols[i]->name);
+            continue;
+        }
 
-                ret = 0;
-                goto out;
+        /*Build Container Structure */
 
+        tmp_container = GF_CALLOC(1, sizeof(struct dht_container),
+                                  gf_dht_mt_container_t);
+        if (!tmp_container) {
+            gf_log(this->name, GF_LOG_ERROR,
+                   "Failed to allocate "
+                   "memory for container");
+            ret = -1;
+            goto out;
         }
-
-out:
-        if (ret == 0) {
-                *container = tmp_container;
-        } else {
-                if (tmp_container) {
-                        gf_defrag_free_container (tmp_container);
-                }
+        tmp_container->df_entry = gf_dirent_for_name(df_entry->d_name);
+        if (!tmp_container->df_entry) {
+            gf_log(this->name, GF_LOG_ERROR,
+                   "Failed to allocate "
+                   "memory for df_entry");
+            ret = -1;
+            goto out;
         }
 
-        return ret;
-}
+        tmp_container->local_subvol_index = i;
 
-int
-gf_defrag_process_dir (xlator_t *this, gf_defrag_info_t *defrag, loc_t *loc,
-                       dict_t *migrate_data, int *perrno)
-{
-        int                      ret               = -1;
-        fd_t                    *fd                = NULL;
-        dht_conf_t              *conf              = NULL;
-        gf_dirent_t              entries;
-        dict_t                  *xattr_req         = NULL;
-        struct timeval           dir_start         = {0,};
-        struct timeval           end               = {0,};
-        double                   elapsed           = {0,};
-        int                      local_subvols_cnt = 0;
-        int                      i                 = 0;
-        int                      j                 = 0;
-        struct  dht_container   *container         = NULL;
-        int                      ldfq_count        = 0;
-        int                      dfc_index         = 0;
-        int                      throttle_up       = 0;
-        struct dir_dfmeta       *dir_dfmeta        = NULL;
-        int                      should_commit_hash = 1;
-
-        gf_log (this->name, GF_LOG_INFO, "migrate data called on %s",
-                loc->path);
-        gettimeofday (&dir_start, NULL);
+        tmp_container->df_entry->d_stat = df_entry->d_stat;
 
-        conf = this->private;
-        local_subvols_cnt = conf->local_subvols_cnt;
+        tmp_container->df_entry->d_ino = df_entry->d_ino;
 
-        if (!local_subvols_cnt) {
-                ret = 0;
-                goto out;
-        }
+        tmp_container->df_entry->d_type = df_entry->d_type;
 
-        fd = fd_create (loc->inode, defrag->pid);
-        if (!fd) {
-                gf_log (this->name, GF_LOG_ERROR, "Failed to create fd");
-                ret = -1;
-                goto out;
-        }
+        tmp_container->df_entry->d_len = df_entry->d_len;
 
-        ret = syncop_opendir (this, loc, fd, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_MIGRATE_DATA_FAILED,
-                        "Migrate data failed: Failed to open dir %s",
-                        loc->path);
-                *perrno = -ret;
-                ret = -1;
-                goto out;
+        tmp_container->parent_loc = GF_CALLOC(1, sizeof(*loc), gf_dht_mt_loc_t);
+        if (!tmp_container->parent_loc) {
+            gf_log(this->name, GF_LOG_ERROR,
+                   "Failed to allocate "
+                   "memory for loc");
+            ret = -1;
+            goto out;
         }
 
-        fd_bind (fd);
-        dir_dfmeta = GF_CALLOC (1, sizeof (*dir_dfmeta),
-                                                gf_common_mt_pointer);
-        if (!dir_dfmeta) {
-                gf_log (this->name, GF_LOG_ERROR, "dir_dfmeta is NULL");
-                ret = -1;
-                goto out;
+        ret = loc_copy(tmp_container->parent_loc, loc);
+        if (ret) {
+            gf_log(this->name, GF_LOG_ERROR, "loc_copy failed");
+            ret = -1;
+            goto out;
         }
 
+        tmp_container->migrate_data = migrate_data;
 
-        dir_dfmeta->head = GF_CALLOC (local_subvols_cnt,
-                                      sizeof (*(dir_dfmeta->head)),
-                                      gf_common_mt_pointer);
-        if (!dir_dfmeta->head) {
-                gf_log (this->name, GF_LOG_ERROR, "dir_dfmeta->head is NULL");
-                ret = -1;
-                goto out;
-        }
+        tmp_container->this = this;
 
-        dir_dfmeta->iterator = GF_CALLOC (local_subvols_cnt,
-                                          sizeof (*(dir_dfmeta->iterator)),
-                                          gf_common_mt_pointer);
-        if (!dir_dfmeta->iterator) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "dir_dfmeta->iterator is NULL");
-                ret = -1;
-                goto out;
-        }
+        if (df_entry->dict)
+            tmp_container->df_entry->dict = dict_ref(df_entry->dict);
 
-        dir_dfmeta->equeue = GF_CALLOC (local_subvols_cnt, sizeof (entries),
-                                        gf_dht_mt_dirent_t);
-        if (!dir_dfmeta->equeue) {
-                gf_log (this->name, GF_LOG_ERROR, "dir_dfmeta->equeue is NULL");
-                ret = -1;
-                goto out;
-        }
+        /*Build Container Structure >> END*/
 
-        dir_dfmeta->offset_var = GF_CALLOC (local_subvols_cnt,
-                                            sizeof (dht_dfoffset_ctx_t),
-                                            gf_dht_mt_octx_t);
-        if (!dir_dfmeta->offset_var) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "dir_dfmeta->offset_var is NULL");
-                ret = -1;
-                goto out;
-        }
-        ret = gf_defrag_ctx_subvols_init (dir_dfmeta->offset_var, this);
-        if (ret) {
-                gf_log (this->name, GF_LOG_ERROR, "dht_dfoffset_ctx_t"
-                        "initialization failed");
-                ret = -1;
-                goto out;
-        }
-
-        dir_dfmeta->fetch_entries = GF_CALLOC (local_subvols_cnt,
-                                               sizeof (int), gf_common_mt_int);
-        if (!dir_dfmeta->fetch_entries) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "dir_dfmeta->fetch_entries is NULL");
-                ret = -1;
-                goto out;
-        }
-
-        for (i = 0; i < local_subvols_cnt ; i++) {
-                INIT_LIST_HEAD (&(dir_dfmeta->equeue[i].list));
-                dir_dfmeta->head[i]          = &(dir_dfmeta->equeue[i].list);
-                dir_dfmeta->iterator[i]      = dir_dfmeta->head[i];
-                dir_dfmeta->fetch_entries[i] = 1;
-        }
+        ret = 0;
+        goto out;
+    }
 
-        xattr_req = dict_new ();
-        if (!xattr_req) {
-               gf_log (this->name, GF_LOG_ERROR, "dict_new failed");
-               ret = -1;
-               goto out;
+out:
+    if (ret == 0) {
+        *container = tmp_container;
+    } else {
+        if (tmp_container) {
+            gf_defrag_free_container(tmp_container);
         }
+    }
 
-        ret = dict_set_uint32 (xattr_req,
-                               conf->link_xattr_name, 256);
-        if (ret) {
-               gf_log (this->name, GF_LOG_ERROR, "failed to set dict for "
-                       "key: %s", conf->link_xattr_name);
-               ret = -1;
-               goto out;
-        }
+    return ret;
+}
 
-        /*
-         Job: Read entries from each local subvol and store the entries
-              in equeue array of linked list. Now pick one entry from the
-              equeue array in a round robin basis and add them to defrag Queue.
-        */
+int
+gf_defrag_process_dir(xlator_t *this, gf_defrag_info_t *defrag, loc_t *loc,
+                      dict_t *migrate_data, int *perrno)
+{
+    int ret = -1;
+    fd_t *fd = NULL;
+    dht_conf_t *conf = NULL;
+    gf_dirent_t entries;
+    dict_t *xattr_req = NULL;
+    struct timeval dir_start = {
+        0,
+    };
+    struct timeval end = {
+        0,
+    };
+    double elapsed = {
+        0,
+    };
+    int local_subvols_cnt = 0;
+    int i = 0;
+    int j = 0;
+    struct dht_container *container = NULL;
+    int ldfq_count = 0;
+    int dfc_index = 0;
+    int throttle_up = 0;
+    struct dir_dfmeta *dir_dfmeta = NULL;
+    int should_commit_hash = 1;
+
+    gf_log(this->name, GF_LOG_INFO, "migrate data called on %s", loc->path);
+    gettimeofday(&dir_start, NULL);
+
+    conf = this->private;
+    local_subvols_cnt = conf->local_subvols_cnt;
+
+    if (!local_subvols_cnt) {
+        ret = 0;
+        goto out;
+    }
 
-        while (!dht_dfreaddirp_done(dir_dfmeta->offset_var,
-                                         local_subvols_cnt)) {
+    fd = fd_create(loc->inode, defrag->pid);
+    if (!fd) {
+        gf_log(this->name, GF_LOG_ERROR, "Failed to create fd");
+        ret = -1;
+        goto out;
+    }
+
+    ret = syncop_opendir(this, loc, fd, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_MIGRATE_DATA_FAILED,
+               "Migrate data failed: Failed to open dir %s", loc->path);
+        *perrno = -ret;
+        ret = -1;
+        goto out;
+    }
 
-                pthread_mutex_lock (&defrag->dfq_mutex);
-                {
+    fd_bind(fd);
+    dir_dfmeta = GF_CALLOC(1, sizeof(*dir_dfmeta), gf_common_mt_pointer);
+    if (!dir_dfmeta) {
+        gf_log(this->name, GF_LOG_ERROR, "dir_dfmeta is NULL");
+        ret = -1;
+        goto out;
+    }
 
-                      /*Throttle up: If reconfigured count is higher than
-                        current thread count, wake up the sleeping threads
-                        TODO: Need to refactor this. Instead of making the
-                        thread sleep and wake, we should terminate and spawn
-                        threads on-demand*/
-
-                        if (defrag->recon_thread_count >
-                                         defrag->current_thread_count) {
-                                throttle_up =
-                                        (defrag->recon_thread_count -
-                                            defrag->current_thread_count);
-                                for (j = 0; j < throttle_up; j++) {
-                                        pthread_cond_signal (
-                                             &defrag->df_wakeup_thread);
-                                }
+    dir_dfmeta->head = GF_CALLOC(local_subvols_cnt, sizeof(*(dir_dfmeta->head)),
+                                 gf_common_mt_pointer);
+    if (!dir_dfmeta->head) {
+        gf_log(this->name, GF_LOG_ERROR, "dir_dfmeta->head is NULL");
+        ret = -1;
+        goto out;
+    }
+
+    dir_dfmeta->iterator = GF_CALLOC(local_subvols_cnt,
+                                     sizeof(*(dir_dfmeta->iterator)),
+                                     gf_common_mt_pointer);
+    if (!dir_dfmeta->iterator) {
+        gf_log(this->name, GF_LOG_ERROR, "dir_dfmeta->iterator is NULL");
+        ret = -1;
+        goto out;
+    }
 
-                        }
+    dir_dfmeta->equeue = GF_CALLOC(local_subvols_cnt, sizeof(entries),
+                                   gf_dht_mt_dirent_t);
+    if (!dir_dfmeta->equeue) {
+        gf_log(this->name, GF_LOG_ERROR, "dir_dfmeta->equeue is NULL");
+        ret = -1;
+        goto out;
+    }
 
-                        while (defrag->q_entry_count >
-                                        MAX_MIGRATE_QUEUE_COUNT) {
-                                defrag->wakeup_crawler = 1;
-                                pthread_cond_wait (
-                                        &defrag->rebalance_crawler_alarm,
-                                        &defrag->dfq_mutex);
-                        }
+    dir_dfmeta->offset_var = GF_CALLOC(
+        local_subvols_cnt, sizeof(dht_dfoffset_ctx_t), gf_dht_mt_octx_t);
+    if (!dir_dfmeta->offset_var) {
+        gf_log(this->name, GF_LOG_ERROR, "dir_dfmeta->offset_var is NULL");
+        ret = -1;
+        goto out;
+    }
+    ret = gf_defrag_ctx_subvols_init(dir_dfmeta->offset_var, this);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR,
+               "dht_dfoffset_ctx_t"
+               "initialization failed");
+        ret = -1;
+        goto out;
+    }
 
-                       ldfq_count = defrag->q_entry_count;
+    dir_dfmeta->fetch_entries = GF_CALLOC(local_subvols_cnt, sizeof(int),
+                                          gf_common_mt_int);
+    if (!dir_dfmeta->fetch_entries) {
+        gf_log(this->name, GF_LOG_ERROR, "dir_dfmeta->fetch_entries is NULL");
+        ret = -1;
+        goto out;
+    }
+
+    for (i = 0; i < local_subvols_cnt; i++) {
+        INIT_LIST_HEAD(&(dir_dfmeta->equeue[i].list));
+        dir_dfmeta->head[i] = &(dir_dfmeta->equeue[i].list);
+        dir_dfmeta->iterator[i] = dir_dfmeta->head[i];
+        dir_dfmeta->fetch_entries[i] = 1;
+    }
+
+    xattr_req = dict_new();
+    if (!xattr_req) {
+        gf_log(this->name, GF_LOG_ERROR, "dict_new failed");
+        ret = -1;
+        goto out;
+    }
+
+    ret = dict_set_uint32(xattr_req, conf->link_xattr_name, 256);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR,
+               "failed to set dict for "
+               "key: %s",
+               conf->link_xattr_name);
+        ret = -1;
+        goto out;
+    }
 
-                       if (defrag->wakeup_crawler) {
-                               defrag->wakeup_crawler = 0;
-                       }
+    /*
+     Job: Read entries from each local subvol and store the entries
+          in equeue array of linked list. Now pick one entry from the
+          equeue array in a round robin basis and add them to defrag Queue.
+    */
 
+    while (!dht_dfreaddirp_done(dir_dfmeta->offset_var, local_subvols_cnt)) {
+        pthread_mutex_lock(&defrag->dfq_mutex);
+        {
+            /*Throttle up: If reconfigured count is higher than
+              current thread count, wake up the sleeping threads
+              TODO: Need to refactor this. Instead of making the
+              thread sleep and wake, we should terminate and spawn
+              threads on-demand*/
+
+            if (defrag->recon_thread_count > defrag->current_thread_count) {
+                throttle_up = (defrag->recon_thread_count -
+                               defrag->current_thread_count);
+                for (j = 0; j < throttle_up; j++) {
+                    pthread_cond_signal(&defrag->df_wakeup_thread);
                 }
-                pthread_mutex_unlock (&defrag->dfq_mutex);
-
-                while (ldfq_count <= MAX_MIGRATE_QUEUE_COUNT &&
-                       !dht_dfreaddirp_done(dir_dfmeta->offset_var,
-                                               local_subvols_cnt)) {
+            }
 
-                        ret = gf_defrag_get_entry (this, dfc_index, &container,
-                                                   loc, conf, defrag, fd,
-                                                   migrate_data, dir_dfmeta,
-                                                   xattr_req,
-                                                   &should_commit_hash, perrno);
+            while (defrag->q_entry_count > MAX_MIGRATE_QUEUE_COUNT) {
+                defrag->wakeup_crawler = 1;
+                pthread_cond_wait(&defrag->rebalance_crawler_alarm,
+                                  &defrag->dfq_mutex);
+            }
 
-                        if (ret) {
-                                gf_log (this->name, GF_LOG_WARNING, "Found "
-                                        "error from gf_defrag_get_entry");
+            ldfq_count = defrag->q_entry_count;
 
-                                ret = -1;
-                                goto out;
-                        }
-
-                        /* Check if we got an entry, else we need to move the
-                           index to the next subvol */
-                        if (!container) {
-                                GF_CRAWL_INDEX_MOVE(dfc_index,
-                                                    local_subvols_cnt);
-                                continue;
-                        }
+            if (defrag->wakeup_crawler) {
+                defrag->wakeup_crawler = 0;
+            }
+        }
+        pthread_mutex_unlock(&defrag->dfq_mutex);
 
-                        /* Q this entry in the dfq */
-                        pthread_mutex_lock (&defrag->dfq_mutex);
-                        {
-                                list_add_tail (&container->list,
-                                        &(defrag->queue[0].list));
-                                defrag->q_entry_count++;
-                                ldfq_count = defrag->q_entry_count;
-
-                                gf_msg_debug (this->name, 0, "added "
-                                              "file:%s parent:%s to the queue ",
-                                              container->df_entry->d_name,
-                                              container->parent_loc->path);
-
-                                pthread_cond_signal (
-                                        &defrag->parallel_migration_cond);
-                        }
-                        pthread_mutex_unlock (&defrag->dfq_mutex);
+        while (
+            ldfq_count <= MAX_MIGRATE_QUEUE_COUNT &&
+            !dht_dfreaddirp_done(dir_dfmeta->offset_var, local_subvols_cnt)) {
+            ret = gf_defrag_get_entry(this, dfc_index, &container, loc, conf,
+                                      defrag, fd, migrate_data, dir_dfmeta,
+                                      xattr_req, &should_commit_hash, perrno);
 
-                        GF_CRAWL_INDEX_MOVE(dfc_index, local_subvols_cnt);
-                }
-        }
+            if (ret) {
+                gf_log(this->name, GF_LOG_WARNING,
+                       "Found "
+                       "error from gf_defrag_get_entry");
 
-        gettimeofday (&end, NULL);
-        elapsed = (end.tv_sec - dir_start.tv_sec) * 1e6 +
-                  (end.tv_usec - dir_start.tv_usec);
-        gf_log (this->name, GF_LOG_INFO, "Migration operation on dir %s took "
-                "%.2f secs", loc->path, elapsed/1e6);
-        ret = 0;
+                ret = -1;
+                goto out;
+            }
+
+            /* Check if we got an entry, else we need to move the
+               index to the next subvol */
+            if (!container) {
+                GF_CRAWL_INDEX_MOVE(dfc_index, local_subvols_cnt);
+                continue;
+            }
+
+            /* Q this entry in the dfq */
+            pthread_mutex_lock(&defrag->dfq_mutex);
+            {
+                list_add_tail(&container->list, &(defrag->queue[0].list));
+                defrag->q_entry_count++;
+                ldfq_count = defrag->q_entry_count;
+
+                gf_msg_debug(this->name, 0,
+                             "added "
+                             "file:%s parent:%s to the queue ",
+                             container->df_entry->d_name,
+                             container->parent_loc->path);
+
+                pthread_cond_signal(&defrag->parallel_migration_cond);
+            }
+            pthread_mutex_unlock(&defrag->dfq_mutex);
+
+            GF_CRAWL_INDEX_MOVE(dfc_index, local_subvols_cnt);
+        }
+    }
+
+    gettimeofday(&end, NULL);
+    elapsed = (end.tv_sec - dir_start.tv_sec) * 1e6 +
+              (end.tv_usec - dir_start.tv_usec);
+    gf_log(this->name, GF_LOG_INFO,
+           "Migration operation on dir %s took "
+           "%.2f secs",
+           loc->path, elapsed / 1e6);
+    ret = 0;
 out:
 
-        gf_defrag_free_dir_dfmeta (dir_dfmeta, local_subvols_cnt);
+    gf_defrag_free_dir_dfmeta(dir_dfmeta, local_subvols_cnt);
 
-        if (xattr_req)
-                dict_unref(xattr_req);
+    if (xattr_req)
+        dict_unref(xattr_req);
 
-        if (fd)
-                fd_unref (fd);
+    if (fd)
+        fd_unref(fd);
 
-        if (ret == 0 && should_commit_hash == 0) {
-                ret = 2;
-        }
+    if (ret == 0 && should_commit_hash == 0) {
+        ret = 2;
+    }
 
-        /* It does not matter if it errored out - this number is
-         * used to calculate rebalance estimated time to complete.
-         * No locking required as dirs are processed by a single thread.
-         */
-        defrag->num_dirs_processed++;
-        return ret;
+    /* It does not matter if it errored out - this number is
+     * used to calculate rebalance estimated time to complete.
+     * No locking required as dirs are processed by a single thread.
+     */
+    defrag->num_dirs_processed++;
+    return ret;
 }
 int
-gf_defrag_settle_hash (xlator_t *this, gf_defrag_info_t *defrag,
-                       loc_t *loc, dict_t *fix_layout)
+gf_defrag_settle_hash(xlator_t *this, gf_defrag_info_t *defrag, loc_t *loc,
+                      dict_t *fix_layout)
 {
-        int     ret;
-        dht_conf_t *conf = NULL;
-        /*
-         * Now we're ready to update the directory commit hash for the volume
-         * root, so that hash miscompares and broadcast lookups can stop.
-         * However, we want to skip that if fix-layout is all we did.  In
-         * that case, we want the miscompares etc. to continue until a real
-         * rebalance is complete.
-         */
-        if (defrag->cmd == GF_DEFRAG_CMD_START_LAYOUT_FIX
-            || defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
-            defrag->cmd == GF_DEFRAG_CMD_DETACH_START) {
-                return 0;
-        }
-
-        conf = this->private;
-        if (!conf) {
-                /*Uh oh
-                 */
-                return -1;
-        }
+    int ret;
+    dht_conf_t *conf = NULL;
+    /*
+     * Now we're ready to update the directory commit hash for the volume
+     * root, so that hash miscompares and broadcast lookups can stop.
+     * However, we want to skip that if fix-layout is all we did.  In
+     * that case, we want the miscompares etc. to continue until a real
+     * rebalance is complete.
+     */
+    if (defrag->cmd == GF_DEFRAG_CMD_START_LAYOUT_FIX ||
+        defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
+        defrag->cmd == GF_DEFRAG_CMD_DETACH_START) {
+        return 0;
+    }
 
-        if (conf->local_subvols_cnt == 0 || !conf->lookup_optimize) {
-                /* Commit hash updates are only done on local subvolumes and
-                 * only when lookup optimization is needed (for older client
-                 * support)
-                 */
-                return 0;
-        }
+    conf = this->private;
+    if (!conf) {
+        /*Uh oh
+         */
+        return -1;
+    }
 
-        ret = dict_set_uint32 (fix_layout, "new-commit-hash",
-                               defrag->new_commit_hash);
-        if (ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "Failed to set new-commit-hash");
-                return -1;
-        }
+    if (conf->local_subvols_cnt == 0 || !conf->lookup_optimize) {
+        /* Commit hash updates are only done on local subvolumes and
+         * only when lookup optimization is needed (for older client
+         * support)
+         */
+        return 0;
+    }
 
-        ret = syncop_setxattr (this, loc, fix_layout, 0, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_LAYOUT_FIX_FAILED,
-                        "fix layout on %s failed", loc->path);
+    ret = dict_set_uint32(fix_layout, "new-commit-hash",
+                          defrag->new_commit_hash);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR, "Failed to set new-commit-hash");
+        return -1;
+    }
 
-                if (-ret == ENOENT || -ret == ESTALE) {
-                        /* Dir most likely is deleted */
-                        return 0;
-                }
+    ret = syncop_setxattr(this, loc, fix_layout, 0, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_LAYOUT_FIX_FAILED,
+               "fix layout on %s failed", loc->path);
 
-                return -1;
+        if (-ret == ENOENT || -ret == ESTALE) {
+            /* Dir most likely is deleted */
+            return 0;
         }
 
-        /* TBD: find more efficient solution than adding/deleting every time */
-        dict_del(fix_layout, "new-commit-hash");
-
-        return 0;
-}
+        return -1;
+    }
 
+    /* TBD: find more efficient solution than adding/deleting every time */
+    dict_del(fix_layout, "new-commit-hash");
 
+    return 0;
+}
 
 /* Function for doing a named lookup on file inodes during an attach tier
  * So that a hardlink lookup heal i.e gfid to parent gfid lookup heal
@@ -3717,1721 +3588,1672 @@ gf_defrag_settle_hash (xlator_t *this, gf_defrag_info_t *defrag,
  * eventual consistency
  * */
 int
-gf_fix_layout_tier_attach_lookup (xlator_t *this,
-                                 loc_t *parent_loc,
+gf_fix_layout_tier_attach_lookup(xlator_t *this, loc_t *parent_loc,
                                  gf_dirent_t *file_dentry)
 {
-        int                      ret            = -1;
-        dict_t                  *lookup_xdata   = NULL;
-        dht_conf_t              *conf           = NULL;
-        loc_t                    file_loc       = {0,};
-        struct iatt              iatt           = {0,};
+    int ret = -1;
+    dict_t *lookup_xdata = NULL;
+    dht_conf_t *conf = NULL;
+    loc_t file_loc = {
+        0,
+    };
+    struct iatt iatt = {
+        0,
+    };
 
-        GF_VALIDATE_OR_GOTO ("tier", this, out);
+    GF_VALIDATE_OR_GOTO("tier", this, out);
 
-        GF_VALIDATE_OR_GOTO (this->name, parent_loc, out);
+    GF_VALIDATE_OR_GOTO(this->name, parent_loc, out);
 
-        GF_VALIDATE_OR_GOTO (this->name, file_dentry, out);
+    GF_VALIDATE_OR_GOTO(this->name, file_dentry, out);
 
-        GF_VALIDATE_OR_GOTO (this->name, this->private, out);
-
-        if (!parent_loc->inode) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "%s/%s parent is NULL", parent_loc->path,
-                        file_dentry->d_name);
-                goto out;
-        }
+    GF_VALIDATE_OR_GOTO(this->name, this->private, out);
 
+    if (!parent_loc->inode) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "%s/%s parent is NULL", parent_loc->path, file_dentry->d_name);
+        goto out;
+    }
 
-        conf   = this->private;
+    conf = this->private;
 
-        loc_wipe (&file_loc);
+    loc_wipe(&file_loc);
 
-        if (gf_uuid_is_null (file_dentry->d_stat.ia_gfid)) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "%s/%s gfid not present", parent_loc->path,
-                        file_dentry->d_name);
-                goto out;
-        }
+    if (gf_uuid_is_null(file_dentry->d_stat.ia_gfid)) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "%s/%s gfid not present", parent_loc->path, file_dentry->d_name);
+        goto out;
+    }
 
-        gf_uuid_copy (file_loc.gfid, file_dentry->d_stat.ia_gfid);
-
-        if (gf_uuid_is_null (parent_loc->gfid)) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "%s/%s"
-                        " gfid not present", parent_loc->path,
-                        file_dentry->d_name);
-                goto out;
-        }
+    gf_uuid_copy(file_loc.gfid, file_dentry->d_stat.ia_gfid);
 
-        gf_uuid_copy (file_loc.pargfid, parent_loc->gfid);
+    if (gf_uuid_is_null(parent_loc->gfid)) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "%s/%s"
+               " gfid not present",
+               parent_loc->path, file_dentry->d_name);
+        goto out;
+    }
 
+    gf_uuid_copy(file_loc.pargfid, parent_loc->gfid);
 
-        ret = dht_build_child_loc (this, &file_loc, parent_loc,
-                                                file_dentry->d_name);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Child loc build failed");
-                ret = -1;
-                goto out;
-        }
-
-        lookup_xdata = dict_new ();
-        if (!lookup_xdata) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Failed creating lookup dict for %s",
-                        file_dentry->d_name);
-                goto out;
-        }
-
-        ret = dict_set_int32 (lookup_xdata, CTR_ATTACH_TIER_LOOKUP, 1);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to set lookup flag");
-                goto out;
-        }
-
-        gf_uuid_copy (file_loc.parent->gfid, parent_loc->gfid);
-
-        /* Sending lookup to cold tier only */
-        ret = syncop_lookup (conf->subvolumes[0], &file_loc, &iatt,
-                        NULL, lookup_xdata, NULL);
-        if (ret) {
-                /* If the file does not exist on the cold tier than it must */
-                /* have been discovered on the hot tier. This is not an error. */
-                gf_msg (this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
-                        "%s lookup to cold tier on attach heal failed", file_loc.path);
-                goto out;
-        }
-
-        ret = 0;
+    ret = dht_build_child_loc(this, &file_loc, parent_loc, file_dentry->d_name);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Child loc build failed");
+        ret = -1;
+        goto out;
+    }
+
+    lookup_xdata = dict_new();
+    if (!lookup_xdata) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed creating lookup dict for %s", file_dentry->d_name);
+        goto out;
+    }
+
+    ret = dict_set_int32(lookup_xdata, CTR_ATTACH_TIER_LOOKUP, 1);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to set lookup flag");
+        goto out;
+    }
+
+    gf_uuid_copy(file_loc.parent->gfid, parent_loc->gfid);
+
+    /* Sending lookup to cold tier only */
+    ret = syncop_lookup(conf->subvolumes[0], &file_loc, &iatt, NULL,
+                        lookup_xdata, NULL);
+    if (ret) {
+        /* If the file does not exist on the cold tier than it must */
+        /* have been discovered on the hot tier. This is not an error. */
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "%s lookup to cold tier on attach heal failed", file_loc.path);
+        goto out;
+    }
+
+    ret = 0;
 
 out:
 
-        loc_wipe (&file_loc);
+    loc_wipe(&file_loc);
 
-        if (lookup_xdata)
-                dict_unref (lookup_xdata);
+    if (lookup_xdata)
+        dict_unref(lookup_xdata);
 
-        return ret;
+    return ret;
 }
 
 int
-gf_defrag_fix_layout (xlator_t *this, gf_defrag_info_t *defrag, loc_t *loc,
-                  dict_t *fix_layout, dict_t *migrate_data)
+gf_defrag_fix_layout(xlator_t *this, gf_defrag_info_t *defrag, loc_t *loc,
+                     dict_t *fix_layout, dict_t *migrate_data)
 {
-        int                      ret            = -1;
-        loc_t                    entry_loc      = {0,};
-        fd_t                    *fd             = NULL;
-        gf_dirent_t              entries;
-        gf_dirent_t             *tmp            = NULL;
-        gf_dirent_t             *entry          = NULL;
-        gf_boolean_t             free_entries   = _gf_false;
-        off_t                    offset         = 0;
-        struct iatt              iatt           = {0,};
-        inode_t                 *linked_inode   = NULL, *inode = NULL;
-        dht_conf_t              *conf           = NULL;
-        int                      should_commit_hash = 1;
-        int                      perrno         = 0;
-
-        conf = this->private;
-        if (!conf) {
-                ret = -1;
-                goto out;
-        }
-
-        ret = syncop_lookup (this, loc, &iatt, NULL, NULL, NULL);
-        if (ret) {
-                if (strcmp (loc->path, "/") == 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_DIR_LOOKUP_FAILED,
-                                "lookup failed for:%s", loc->path);
-
-                        defrag->total_failures++;
-                        ret = -1;
-                        goto out;
-                }
+    int ret = -1;
+    loc_t entry_loc = {
+        0,
+    };
+    fd_t *fd = NULL;
+    gf_dirent_t entries;
+    gf_dirent_t *tmp = NULL;
+    gf_dirent_t *entry = NULL;
+    gf_boolean_t free_entries = _gf_false;
+    off_t offset = 0;
+    struct iatt iatt = {
+        0,
+    };
+    inode_t *linked_inode = NULL, *inode = NULL;
+    dht_conf_t *conf = NULL;
+    int should_commit_hash = 1;
+    int perrno = 0;
+
+    conf = this->private;
+    if (!conf) {
+        ret = -1;
+        goto out;
+    }
 
-                if (-ret == ENOENT || -ret == ESTALE) {
-                        gf_msg (this->name, GF_LOG_INFO, -ret,
-                                DHT_MSG_DIR_LOOKUP_FAILED,
-                                "Dir:%s renamed or removed. Skipping",
-                                loc->path);
-                        if (conf->decommission_subvols_cnt) {
-                                defrag->total_failures++;
-                        }
-                        ret = 0;
-                        goto out;
-                } else {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_DIR_LOOKUP_FAILED,
-                                "lookup failed for:%s", loc->path);
+    ret = syncop_lookup(this, loc, &iatt, NULL, NULL, NULL);
+    if (ret) {
+        if (strcmp(loc->path, "/") == 0) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_DIR_LOOKUP_FAILED,
+                   "lookup failed for:%s", loc->path);
 
-                        defrag->total_failures++;
-                        goto out;
-                }
+            defrag->total_failures++;
+            ret = -1;
+            goto out;
         }
 
-        fd = fd_create (loc->inode, defrag->pid);
-        if (!fd) {
-                gf_log (this->name, GF_LOG_ERROR, "Failed to create fd");
-                ret = -1;
-                goto out;
-        }
+        if (-ret == ENOENT || -ret == ESTALE) {
+            gf_msg(this->name, GF_LOG_INFO, -ret, DHT_MSG_DIR_LOOKUP_FAILED,
+                   "Dir:%s renamed or removed. Skipping", loc->path);
+            if (conf->decommission_subvols_cnt) {
+                defrag->total_failures++;
+            }
+            ret = 0;
+            goto out;
+        } else {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_DIR_LOOKUP_FAILED,
+                   "lookup failed for:%s", loc->path);
 
-        ret = syncop_opendir (this, loc, fd, NULL, NULL);
-        if (ret) {
-                if (-ret == ENOENT || -ret == ESTALE) {
-                        if (conf->decommission_subvols_cnt) {
-                                defrag->total_failures++;
-                        }
-                        ret = 0;
-                        goto out;
-                }
+            defrag->total_failures++;
+            goto out;
+        }
+    }
 
-                gf_log (this->name, GF_LOG_ERROR, "Failed to open dir %s, "
-                        "err:%d", loc->path, -ret);
+    fd = fd_create(loc->inode, defrag->pid);
+    if (!fd) {
+        gf_log(this->name, GF_LOG_ERROR, "Failed to create fd");
+        ret = -1;
+        goto out;
+    }
 
-                ret = -1;
-                goto out;
+    ret = syncop_opendir(this, loc, fd, NULL, NULL);
+    if (ret) {
+        if (-ret == ENOENT || -ret == ESTALE) {
+            if (conf->decommission_subvols_cnt) {
+                defrag->total_failures++;
+            }
+            ret = 0;
+            goto out;
         }
 
-        fd_bind (fd);
-        INIT_LIST_HEAD (&entries.list);
+        gf_log(this->name, GF_LOG_ERROR,
+               "Failed to open dir %s, "
+               "err:%d",
+               loc->path, -ret);
 
-        while ((ret = syncop_readdirp (this, fd, 131072, offset, &entries,
-                                       NULL, NULL)) != 0)
-        {
-                if (ret < 0) {
-                        if (-ret == ENOENT || -ret == ESTALE) {
-                                if (conf->decommission_subvols_cnt) {
-                                        defrag->total_failures++;
-                                }
-                                ret = 0;
-                                goto out;
-                        }
+        ret = -1;
+        goto out;
+    }
 
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_READDIR_ERROR, "readdirp failed for "
-                                "path %s. Aborting fix-layout", loc->path);
+    fd_bind(fd);
+    INIT_LIST_HEAD(&entries.list);
 
-                        ret = -1;
-                        goto out;
+    while ((ret = syncop_readdirp(this, fd, 131072, offset, &entries, NULL,
+                                  NULL)) != 0) {
+        if (ret < 0) {
+            if (-ret == ENOENT || -ret == ESTALE) {
+                if (conf->decommission_subvols_cnt) {
+                    defrag->total_failures++;
                 }
+                ret = 0;
+                goto out;
+            }
 
-                if (list_empty (&entries.list))
-                        break;
-
-                free_entries = _gf_true;
-
-                list_for_each_entry_safe (entry, tmp, &entries.list, list) {
-                        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
-                                ret = 1;
-                                goto out;
-                        }
-
-                        offset = entry->d_off;
-
-                        if (!strcmp (entry->d_name, ".") ||
-                            !strcmp (entry->d_name, ".."))
-                                continue;
-                        if (!IA_ISDIR (entry->d_stat.ia_type)) {
-
-                                /* If its a fix layout during the attach
-                                 * tier operation do lookups on files
-                                 * on cold subvolume so that there is a
-                                 * CTR DB Lookup Heal triggered on existing
-                                 * data.
-                                 * */
-                                if (defrag->cmd == GF_DEFRAG_CMD_START_TIER) {
-                                        gf_fix_layout_tier_attach_lookup
-                                                (this, loc, entry);
-                                }
-
-                                continue;
-                        }
-                        loc_wipe (&entry_loc);
-
-                        ret = dht_build_child_loc (this, &entry_loc, loc,
-                                                  entry->d_name);
-                        if (ret) {
-                                gf_log (this->name, GF_LOG_ERROR, "Child loc"
-                                        " build failed for entry: %s",
-                                        entry->d_name);
-
-                                if (conf->decommission_in_progress) {
-                                        defrag->defrag_status =
-                                        GF_DEFRAG_STATUS_FAILED;
-
-                                        goto out;
-                                } else {
-                                        should_commit_hash = 0;
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_READDIR_ERROR,
+                   "readdirp failed for "
+                   "path %s. Aborting fix-layout",
+                   loc->path);
 
-                                        continue;
-                                }
-                        }
+            ret = -1;
+            goto out;
+        }
 
-                        if (gf_uuid_is_null (entry->d_stat.ia_gfid)) {
-                                gf_log (this->name, GF_LOG_ERROR, "%s/%s"
-                                        " gfid not present", loc->path,
-                                         entry->d_name);
-                                continue;
-                        }
+        if (list_empty(&entries.list))
+            break;
 
+        free_entries = _gf_true;
 
-                        gf_uuid_copy (entry_loc.gfid, entry->d_stat.ia_gfid);
+        list_for_each_entry_safe(entry, tmp, &entries.list, list)
+        {
+            if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
+                ret = 1;
+                goto out;
+            }
+
+            offset = entry->d_off;
+
+            if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, ".."))
+                continue;
+            if (!IA_ISDIR(entry->d_stat.ia_type)) {
+                /* If its a fix layout during the attach
+                 * tier operation do lookups on files
+                 * on cold subvolume so that there is a
+                 * CTR DB Lookup Heal triggered on existing
+                 * data.
+                 * */
+                if (defrag->cmd == GF_DEFRAG_CMD_START_TIER) {
+                    gf_fix_layout_tier_attach_lookup(this, loc, entry);
+                }
 
-                        /*In case the gfid stored in the inode by inode_link
-                         * and the gfid obtained in the lookup differs, then
-                         * client3_3_lookup_cbk will return ESTALE and proper
-                         * error will be captured
-                         */
+                continue;
+            }
+            loc_wipe(&entry_loc);
 
-                        linked_inode = inode_link (entry_loc.inode, loc->inode,
-                                                   entry->d_name,
-                                                   &entry->d_stat);
+            ret = dht_build_child_loc(this, &entry_loc, loc, entry->d_name);
+            if (ret) {
+                gf_log(this->name, GF_LOG_ERROR,
+                       "Child loc"
+                       " build failed for entry: %s",
+                       entry->d_name);
 
-                        inode = entry_loc.inode;
-                        entry_loc.inode = linked_inode;
-                        inode_unref (inode);
+                if (conf->decommission_in_progress) {
+                    defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
 
-                        if (gf_uuid_is_null (loc->gfid)) {
-                                gf_log (this->name, GF_LOG_ERROR, "%s/%s"
-                                        " gfid not present", loc->path,
-                                         entry->d_name);
-                                continue;
-                        }
+                    goto out;
+                } else {
+                    should_commit_hash = 0;
 
-                        gf_uuid_copy (entry_loc.pargfid, loc->gfid);
-
-                        ret = syncop_lookup (this, &entry_loc, &iatt, NULL,
-                                             NULL, NULL);
-                        if (ret) {
-                                if (-ret == ENOENT || -ret == ESTALE) {
-                                        gf_msg (this->name, GF_LOG_INFO, -ret,
-                                                DHT_MSG_DIR_LOOKUP_FAILED,
-                                                "Dir:%s renamed or removed. "
-                                                "Skipping", loc->path);
-                                        ret = 0;
-                                        if (conf->decommission_subvols_cnt) {
-                                                defrag->total_failures++;
-                                        }
-                                        continue;
-                                } else {
-                                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                                DHT_MSG_DIR_LOOKUP_FAILED,
-                                                "lookup failed for:%s",
-                                                entry_loc.path);
-
-                                        defrag->total_failures++;
-
-                                        if (conf->decommission_in_progress) {
-                                                defrag->defrag_status =
-                                                GF_DEFRAG_STATUS_FAILED;
-                                                ret = -1;
-                                                goto out;
-                                        } else {
-                                                should_commit_hash = 0;
-                                                continue;
-                                        }
-                                }
-                        }
+                    continue;
+                }
+            }
+
+            if (gf_uuid_is_null(entry->d_stat.ia_gfid)) {
+                gf_log(this->name, GF_LOG_ERROR,
+                       "%s/%s"
+                       " gfid not present",
+                       loc->path, entry->d_name);
+                continue;
+            }
+
+            gf_uuid_copy(entry_loc.gfid, entry->d_stat.ia_gfid);
+
+            /*In case the gfid stored in the inode by inode_link
+             * and the gfid obtained in the lookup differs, then
+             * client3_3_lookup_cbk will return ESTALE and proper
+             * error will be captured
+             */
+
+            linked_inode = inode_link(entry_loc.inode, loc->inode,
+                                      entry->d_name, &entry->d_stat);
+
+            inode = entry_loc.inode;
+            entry_loc.inode = linked_inode;
+            inode_unref(inode);
+
+            if (gf_uuid_is_null(loc->gfid)) {
+                gf_log(this->name, GF_LOG_ERROR,
+                       "%s/%s"
+                       " gfid not present",
+                       loc->path, entry->d_name);
+                continue;
+            }
+
+            gf_uuid_copy(entry_loc.pargfid, loc->gfid);
+
+            ret = syncop_lookup(this, &entry_loc, &iatt, NULL, NULL, NULL);
+            if (ret) {
+                if (-ret == ENOENT || -ret == ESTALE) {
+                    gf_msg(this->name, GF_LOG_INFO, -ret,
+                           DHT_MSG_DIR_LOOKUP_FAILED,
+                           "Dir:%s renamed or removed. "
+                           "Skipping",
+                           loc->path);
+                    ret = 0;
+                    if (conf->decommission_subvols_cnt) {
+                        defrag->total_failures++;
+                    }
+                    continue;
+                } else {
+                    gf_msg(this->name, GF_LOG_ERROR, -ret,
+                           DHT_MSG_DIR_LOOKUP_FAILED, "lookup failed for:%s",
+                           entry_loc.path);
 
-                        /* A return value of 2 means, either process_dir or
-                         * lookup of a dir failed. Hence, don't commit hash
-                         * for the current directory*/
+                    defrag->total_failures++;
 
-                        ret = gf_defrag_fix_layout (this, defrag, &entry_loc,
-                                                    fix_layout, migrate_data);
+                    if (conf->decommission_in_progress) {
+                        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+                        ret = -1;
+                        goto out;
+                    } else {
+                        should_commit_hash = 0;
+                        continue;
+                    }
+                }
+            }
 
-                        if (ret && ret != 2) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_LAYOUT_FIX_FAILED,
-                                        "Fix layout failed for %s",
-                                        entry_loc.path);
+            /* A return value of 2 means, either process_dir or
+             * lookup of a dir failed. Hence, don't commit hash
+             * for the current directory*/
 
-                                defrag->total_failures++;
+            ret = gf_defrag_fix_layout(this, defrag, &entry_loc, fix_layout,
+                                       migrate_data);
 
-                                if (conf->decommission_in_progress) {
-                                        defrag->defrag_status =
-                                        GF_DEFRAG_STATUS_FAILED;
+            if (ret && ret != 2) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LAYOUT_FIX_FAILED,
+                       "Fix layout failed for %s", entry_loc.path);
 
-                                        goto out;
-                                } else {
-                                        /* Let's not commit-hash if
-                                         * gf_defrag_fix_layout failed*/
-                                        continue;
-                                }
-                        }
-                }
+                defrag->total_failures++;
 
-                gf_dirent_free (&entries);
-                free_entries = _gf_false;
-                INIT_LIST_HEAD (&entries.list);
-        }
+                if (conf->decommission_in_progress) {
+                    defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
 
-        ret = syncop_setxattr (this, loc, fix_layout, 0, NULL, NULL);
-        if (ret) {
-                if (-ret == ENOENT || -ret == ESTALE) {
-                        gf_msg (this->name, GF_LOG_INFO, -ret,
-                                DHT_MSG_LAYOUT_FIX_FAILED,
-                                "Setxattr failed. Dir %s "
-                                "renamed or removed",
-                                loc->path);
-                        if (conf->decommission_subvols_cnt) {
-                                defrag->total_failures++;
-                        }
-                        ret = 0;
+                    goto out;
                 } else {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_LAYOUT_FIX_FAILED,
-                                "Setxattr failed for %s",
-                                loc->path);
+                    /* Let's not commit-hash if
+                     * gf_defrag_fix_layout failed*/
+                    continue;
+                }
+            }
+        }
+
+        gf_dirent_free(&entries);
+        free_entries = _gf_false;
+        INIT_LIST_HEAD(&entries.list);
+    }
+
+    ret = syncop_setxattr(this, loc, fix_layout, 0, NULL, NULL);
+    if (ret) {
+        if (-ret == ENOENT || -ret == ESTALE) {
+            gf_msg(this->name, GF_LOG_INFO, -ret, DHT_MSG_LAYOUT_FIX_FAILED,
+                   "Setxattr failed. Dir %s "
+                   "renamed or removed",
+                   loc->path);
+            if (conf->decommission_subvols_cnt) {
+                defrag->total_failures++;
+            }
+            ret = 0;
+        } else {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_LAYOUT_FIX_FAILED,
+                   "Setxattr failed for %s", loc->path);
 
-                        defrag->total_failures++;
+            defrag->total_failures++;
 
-                        if (conf->decommission_in_progress) {
-                                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
-                                ret = -1;
-                                goto out;
-                        }
-                 }
+            if (conf->decommission_in_progress) {
+                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+                ret = -1;
+                goto out;
+            }
         }
+    }
 
-        if ((defrag->cmd != GF_DEFRAG_CMD_START_TIER) &&
-            (defrag->cmd != GF_DEFRAG_CMD_START_LAYOUT_FIX)) {
-                ret = gf_defrag_process_dir (this, defrag, loc, migrate_data,
-                                             &perrno);
-
-                if (ret && (ret != 2)) {
-                        if (perrno == ENOENT || perrno == ESTALE) {
-                                ret = 0;
-                                goto out;
-                        } else {
-
-                                defrag->total_failures++;
+    if ((defrag->cmd != GF_DEFRAG_CMD_START_TIER) &&
+        (defrag->cmd != GF_DEFRAG_CMD_START_LAYOUT_FIX)) {
+        ret = gf_defrag_process_dir(this, defrag, loc, migrate_data, &perrno);
 
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_DEFRAG_PROCESS_DIR_FAILED,
-                                        "gf_defrag_process_dir failed for "
-                                        "directory: %s", loc->path);
+        if (ret && (ret != 2)) {
+            if (perrno == ENOENT || perrno == ESTALE) {
+                ret = 0;
+                goto out;
+            } else {
+                defrag->total_failures++;
 
-                                if (conf->decommission_in_progress) {
-                                        goto out;
-                                }
+                gf_msg(this->name, GF_LOG_ERROR, 0,
+                       DHT_MSG_DEFRAG_PROCESS_DIR_FAILED,
+                       "gf_defrag_process_dir failed for "
+                       "directory: %s",
+                       loc->path);
 
-                                should_commit_hash = 0;
-                        }
-                } else if (ret == 2) {
-                        should_commit_hash = 0;
+                if (conf->decommission_in_progress) {
+                    goto out;
                 }
-        }
 
-        gf_msg_trace (this->name, 0, "fix layout called on %s", loc->path);
+                should_commit_hash = 0;
+            }
+        } else if (ret == 2) {
+            should_commit_hash = 0;
+        }
+    }
 
-        if (should_commit_hash &&
-            gf_defrag_settle_hash (this, defrag, loc, fix_layout) != 0) {
+    gf_msg_trace(this->name, 0, "fix layout called on %s", loc->path);
 
-                defrag->total_failures++;
+    if (should_commit_hash &&
+        gf_defrag_settle_hash(this, defrag, loc, fix_layout) != 0) {
+        defrag->total_failures++;
 
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_SETTLE_HASH_FAILED,
-                        "Settle hash failed for %s",
-                         loc->path);
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SETTLE_HASH_FAILED,
+               "Settle hash failed for %s", loc->path);
 
-                ret = -1;
+        ret = -1;
 
-                if (conf->decommission_in_progress) {
-                        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
-                        goto out;
-                }
+        if (conf->decommission_in_progress) {
+            defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+            goto out;
         }
+    }
 
-        ret = 0;
+    ret = 0;
 out:
-        if (free_entries)
-                gf_dirent_free (&entries);
+    if (free_entries)
+        gf_dirent_free(&entries);
 
-        loc_wipe (&entry_loc);
+    loc_wipe(&entry_loc);
 
-        if (fd)
-                fd_unref (fd);
+    if (fd)
+        fd_unref(fd);
 
-        if (ret == 0 && should_commit_hash == 0) {
-                ret = 2;
-        }
-
-        return ret;
+    if (ret == 0 && should_commit_hash == 0) {
+        ret = 2;
+    }
 
+    return ret;
 }
 
-
-
 /******************************************************************************
  *                      Tier background Fix layout functions
  ******************************************************************************/
 /* This is the background tier fixlayout thread */
 void *
-gf_tier_do_fix_layout (void *args)
+gf_tier_do_fix_layout(void *args)
 {
-        gf_tier_fix_layout_arg_t *tier_fix_layout_arg   =  args;
-        int                 ret                         = -1;
-        xlator_t            *this                       = NULL;
-        dht_conf_t          *conf                       = NULL;
-        gf_defrag_info_t    *defrag                     = NULL;
-        dict_t              *dict                       = NULL;
-        loc_t               loc                         = {0,};
-        struct iatt         iatt                        = {0,};
-        struct iatt         parent                      = {0,};
-
-        GF_VALIDATE_OR_GOTO ("tier", tier_fix_layout_arg, out);
-        GF_VALIDATE_OR_GOTO ("tier", tier_fix_layout_arg->this, out);
-        this = tier_fix_layout_arg->this;
-
-        conf = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, out);
-
-        defrag = conf->defrag;
-        GF_VALIDATE_OR_GOTO (this->name, defrag, out);
-        GF_VALIDATE_OR_GOTO (this->name, defrag->root_inode, out);
-
-        GF_VALIDATE_OR_GOTO (this->name, tier_fix_layout_arg->fix_layout, out);
-
-
-        /* Get Root loc_t */
-        dht_build_root_loc (defrag->root_inode, &loc);
-        ret = syncop_lookup (this, &loc, &iatt, &parent, NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_REBALANCE_START_FAILED,
-                        "Lookup on root failed.");
-                ret = -1;
-                goto out;
-        }
-
-
-        /* Start the crawl */
-        gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS, "Tiering Fixlayout started");
-
-        ret = gf_defrag_fix_layout (this, defrag, &loc,
-                                    tier_fix_layout_arg->fix_layout, NULL);
-        if (ret && ret != 2) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_REBALANCE_FAILED,
-                        "Tiering fixlayout failed.");
-                ret = -1;
-                goto out;
-        }
-
-        if (ret != 2 && gf_defrag_settle_hash
-                        (this, defrag, &loc,
-                                tier_fix_layout_arg->fix_layout) != 0) {
-                defrag->total_failures++;
-                ret = -1;
-                goto out;
-        }
-
-        dict = dict_new ();
-        if (!dict) {
-                ret = -1;
-                goto out;
-        }
+    gf_tier_fix_layout_arg_t *tier_fix_layout_arg = args;
+    int ret = -1;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    dict_t *dict = NULL;
+    loc_t loc = {
+        0,
+    };
+    struct iatt iatt = {
+        0,
+    };
+    struct iatt parent = {
+        0,
+    };
+
+    GF_VALIDATE_OR_GOTO("tier", tier_fix_layout_arg, out);
+    GF_VALIDATE_OR_GOTO("tier", tier_fix_layout_arg->this, out);
+    this = tier_fix_layout_arg->this;
+
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, out);
+
+    defrag = conf->defrag;
+    GF_VALIDATE_OR_GOTO(this->name, defrag, out);
+    GF_VALIDATE_OR_GOTO(this->name, defrag->root_inode, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, tier_fix_layout_arg->fix_layout, out);
+
+    /* Get Root loc_t */
+    dht_build_root_loc(defrag->root_inode, &loc);
+    ret = syncop_lookup(this, &loc, &iatt, &parent, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_REBALANCE_START_FAILED,
+               "Lookup on root failed.");
+        ret = -1;
+        goto out;
+    }
+
+    /* Start the crawl */
+    gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+           "Tiering Fixlayout started");
+
+    ret = gf_defrag_fix_layout(this, defrag, &loc,
+                               tier_fix_layout_arg->fix_layout, NULL);
+    if (ret && ret != 2) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_REBALANCE_FAILED,
+               "Tiering fixlayout failed.");
+        ret = -1;
+        goto out;
+    }
 
-        ret = dict_set_str (dict, GF_XATTR_TIER_LAYOUT_FIXED_KEY, "yes");
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_REBALANCE_FAILED,
-                        "Failed to set dictionary value: key = %s",
-                        GF_XATTR_TIER_LAYOUT_FIXED_KEY);
-                ret = -1;
-                goto out;
-        }
+    if (ret != 2 &&
+        gf_defrag_settle_hash(this, defrag, &loc,
+                              tier_fix_layout_arg->fix_layout) != 0) {
+        defrag->total_failures++;
+        ret = -1;
+        goto out;
+    }
 
-        /* Marking the completion of tiering fix layout via a xattr on root */
-        ret = syncop_setxattr (this, &loc, dict, 0, NULL, NULL);
-        if (ret) {
-                gf_log (this->name, GF_LOG_ERROR, "Failed to set tiering fix "
-                        "layout completed xattr on %s", loc.path);
-                ret = -1;
-                goto out;
-        }
+    dict = dict_new();
+    if (!dict) {
+        ret = -1;
+        goto out;
+    }
+
+    ret = dict_set_str(dict, GF_XATTR_TIER_LAYOUT_FIXED_KEY, "yes");
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_REBALANCE_FAILED,
+               "Failed to set dictionary value: key = %s",
+               GF_XATTR_TIER_LAYOUT_FIXED_KEY);
+        ret = -1;
+        goto out;
+    }
+
+    /* Marking the completion of tiering fix layout via a xattr on root */
+    ret = syncop_setxattr(this, &loc, dict, 0, NULL, NULL);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR,
+               "Failed to set tiering fix "
+               "layout completed xattr on %s",
+               loc.path);
+        ret = -1;
+        goto out;
+    }
 
-        ret = 0;
+    ret = 0;
 out:
-        if (ret && defrag)
-                defrag->total_failures++;
+    if (ret && defrag)
+        defrag->total_failures++;
 
-        if (dict)
-                dict_unref (dict);
+    if (dict)
+        dict_unref(dict);
 
-        return NULL;
+    return NULL;
 }
 
 int
-gf_tier_start_fix_layout (xlator_t *this,
-                         loc_t *loc,
-                         gf_defrag_info_t *defrag,
+gf_tier_start_fix_layout(xlator_t *this, loc_t *loc, gf_defrag_info_t *defrag,
                          dict_t *fix_layout)
 {
-        int ret                                       = -1;
-        dict_t  *tier_dict                            = NULL;
-        gf_tier_fix_layout_arg_t *tier_fix_layout_arg = NULL;
-
-        tier_dict = dict_new ();
-        if (!tier_dict) {
-                gf_log ("tier", GF_LOG_ERROR, "Tier fix layout failed :"
-                        "Creation of tier_dict failed");
-                ret = -1;
-                goto out;
-        }
-
-        /* Check if layout is fixed already */
-        ret = syncop_getxattr (this, loc, &tier_dict,
-                                GF_XATTR_TIER_LAYOUT_FIXED_KEY,
-                                NULL, NULL);
-        if (ret != 0) {
-
-                tier_fix_layout_arg = &defrag->tier_conf.tier_fix_layout_arg;
-
-                /*Fill crawl arguments */
-                tier_fix_layout_arg->this = this;
-                tier_fix_layout_arg->fix_layout = fix_layout;
-
-                /* Spawn the fix layout thread so that its done in the
-                 * background */
-                ret = gf_thread_create (&tier_fix_layout_arg->thread_id, NULL,
-                                        gf_tier_do_fix_layout,
-                                        tier_fix_layout_arg, "tierfixl");
-                if (ret) {
-                        gf_log ("tier", GF_LOG_ERROR, "Thread creation failed. "
-                                "Background fix layout for tiering will not "
-                                "work.");
-                        defrag->total_failures++;
-                        goto out;
-                }
-        }
-        ret = 0;
+    int ret = -1;
+    dict_t *tier_dict = NULL;
+    gf_tier_fix_layout_arg_t *tier_fix_layout_arg = NULL;
+
+    tier_dict = dict_new();
+    if (!tier_dict) {
+        gf_log("tier", GF_LOG_ERROR,
+               "Tier fix layout failed :"
+               "Creation of tier_dict failed");
+        ret = -1;
+        goto out;
+    }
+
+    /* Check if layout is fixed already */
+    ret = syncop_getxattr(this, loc, &tier_dict, GF_XATTR_TIER_LAYOUT_FIXED_KEY,
+                          NULL, NULL);
+    if (ret != 0) {
+        tier_fix_layout_arg = &defrag->tier_conf.tier_fix_layout_arg;
+
+        /*Fill crawl arguments */
+        tier_fix_layout_arg->this = this;
+        tier_fix_layout_arg->fix_layout = fix_layout;
+
+        /* Spawn the fix layout thread so that its done in the
+         * background */
+        ret = gf_thread_create(&tier_fix_layout_arg->thread_id, NULL,
+                               gf_tier_do_fix_layout, tier_fix_layout_arg,
+                               "tierfixl");
+        if (ret) {
+            gf_log("tier", GF_LOG_ERROR,
+                   "Thread creation failed. "
+                   "Background fix layout for tiering will not "
+                   "work.");
+            defrag->total_failures++;
+            goto out;
+        }
+    }
+    ret = 0;
 out:
-        if (tier_dict)
-                dict_unref (tier_dict);
+    if (tier_dict)
+        dict_unref(tier_dict);
 
-        return ret;
+    return ret;
 }
 
 void
-gf_tier_clear_fix_layout (xlator_t *this, loc_t *loc, gf_defrag_info_t *defrag)
+gf_tier_clear_fix_layout(xlator_t *this, loc_t *loc, gf_defrag_info_t *defrag)
 {
-        int ret         = -1;
-        dict_t *dict    = NULL;
-
-        GF_VALIDATE_OR_GOTO ("tier", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, loc, out);
-        GF_VALIDATE_OR_GOTO (this->name, defrag, out);
-
-        /* Check if background fixlayout is completed. This is not
-         * multi-process safe i.e there is a possibility that by the time
-         * we move to remove the xattr there it might have been cleared by some
-         * other detach process from other node. We ignore the error if such
-         * a thing happens */
-        ret = syncop_getxattr (this, loc, &dict,
-                        GF_XATTR_TIER_LAYOUT_FIXED_KEY, NULL, NULL);
-        if (ret) {
-                /* Background fixlayout not complete - nothing to clear*/
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Unable to retrieve fixlayout xattr."
-                        "Assume background fix layout not complete");
-                goto out;
-        }
-
-        ret = syncop_removexattr (this, loc, GF_XATTR_TIER_LAYOUT_FIXED_KEY,
-                                  NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Failed removing tier fix layout "
-                        "xattr from %s", loc->path);
-                goto out;
-        }
-        ret = 0;
+    int ret = -1;
+    dict_t *dict = NULL;
+
+    GF_VALIDATE_OR_GOTO("tier", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, loc, out);
+    GF_VALIDATE_OR_GOTO(this->name, defrag, out);
+
+    /* Check if background fixlayout is completed. This is not
+     * multi-process safe i.e there is a possibility that by the time
+     * we move to remove the xattr there it might have been cleared by some
+     * other detach process from other node. We ignore the error if such
+     * a thing happens */
+    ret = syncop_getxattr(this, loc, &dict, GF_XATTR_TIER_LAYOUT_FIXED_KEY,
+                          NULL, NULL);
+    if (ret) {
+        /* Background fixlayout not complete - nothing to clear*/
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_LOG_TIER_STATUS,
+               "Unable to retrieve fixlayout xattr."
+               "Assume background fix layout not complete");
+        goto out;
+    }
+
+    ret = syncop_removexattr(this, loc, GF_XATTR_TIER_LAYOUT_FIXED_KEY, NULL,
+                             NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_LOG_TIER_STATUS,
+               "Failed removing tier fix layout "
+               "xattr from %s",
+               loc->path);
+        goto out;
+    }
+    ret = 0;
 out:
-        if (dict)
-                dict_unref (dict);
+    if (dict)
+        dict_unref(dict);
 }
 
 void
-gf_tier_wait_fix_lookup (gf_defrag_info_t *defrag) {
-        if (defrag->tier_conf.tier_fix_layout_arg.thread_id) {
-                pthread_join (defrag->tier_conf.tier_fix_layout_arg.thread_id,
-                        NULL);
-        }
+gf_tier_wait_fix_lookup(gf_defrag_info_t *defrag)
+{
+    if (defrag->tier_conf.tier_fix_layout_arg.thread_id) {
+        pthread_join(defrag->tier_conf.tier_fix_layout_arg.thread_id, NULL);
+    }
 }
 /******************Tier background Fix layout functions END********************/
 
 int
-dht_init_local_subvols_and_nodeuuids (xlator_t *this, dht_conf_t *conf,
-                                      loc_t *loc)
+dht_init_local_subvols_and_nodeuuids(xlator_t *this, dht_conf_t *conf,
+                                     loc_t *loc)
 {
-
-        dict_t                  *dict         = NULL;
-        gf_defrag_info_t        *defrag       = NULL;
-        uuid_t                  *uuid_ptr     = NULL;
-        int                      ret          = -1;
-        int                      i            = 0;
-        int                      j            = 0;
-
-        defrag = conf->defrag;
-
-        if (defrag->cmd != GF_DEFRAG_CMD_START_TIER) {
-                /* Find local subvolumes */
-                ret = syncop_getxattr (this, loc, &dict,
-                                       GF_REBAL_FIND_LOCAL_SUBVOL,
-                                       NULL, NULL);
-                if (ret && (ret != -ENODATA)) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret, 0, "local "
-                                "subvolume determination failed with error: %d",
-                                -ret);
-                        ret = -1;
-                        goto out;
-                 }
-
-        if (!ret)
-                goto out;
+    dict_t *dict = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    uuid_t *uuid_ptr = NULL;
+    int ret = -1;
+    int i = 0;
+    int j = 0;
+
+    defrag = conf->defrag;
+
+    if (defrag->cmd != GF_DEFRAG_CMD_START_TIER) {
+        /* Find local subvolumes */
+        ret = syncop_getxattr(this, loc, &dict, GF_REBAL_FIND_LOCAL_SUBVOL,
+                              NULL, NULL);
+        if (ret && (ret != -ENODATA)) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret, 0,
+                   "local "
+                   "subvolume determination failed with error: %d",
+                   -ret);
+            ret = -1;
+            goto out;
         }
 
-        ret = syncop_getxattr (this, loc, &dict,
-                               GF_REBAL_OLD_FIND_LOCAL_SUBVOL,
-                               NULL, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret, 0, "local "
-                        "subvolume determination failed with error: %d",
-                        -ret);
-                ret = -1;
-                goto out;
-        }
-        ret = 0;
+        if (!ret)
+            goto out;
+    }
+
+    ret = syncop_getxattr(this, loc, &dict, GF_REBAL_OLD_FIND_LOCAL_SUBVOL,
+                          NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, 0,
+               "local "
+               "subvolume determination failed with error: %d",
+               -ret);
+        ret = -1;
+        goto out;
+    }
+    ret = 0;
 
 out:
-        if (ret) {
-                return ret;
-        }
+    if (ret) {
+        return ret;
+    }
 
-        for (i = 0 ; i < conf->local_subvols_cnt; i++) {
-                gf_msg (this->name, GF_LOG_INFO, 0, 0, "local subvol: "
-                        "%s", conf->local_subvols[i]->name);
+    for (i = 0; i < conf->local_subvols_cnt; i++) {
+        gf_msg(this->name, GF_LOG_INFO, 0, 0,
+               "local subvol: "
+               "%s",
+               conf->local_subvols[i]->name);
 
-                for (j = 0; j < conf->local_nodeuuids[i].count; j++) {
-                        uuid_ptr = &(conf->local_nodeuuids[i].elements[j].uuid);
-                        gf_msg (this->name, GF_LOG_INFO, 0, 0,
-                                "node uuid : %s",
-                                uuid_utoa(*uuid_ptr));
-                }
+        for (j = 0; j < conf->local_nodeuuids[i].count; j++) {
+            uuid_ptr = &(conf->local_nodeuuids[i].elements[j].uuid);
+            gf_msg(this->name, GF_LOG_INFO, 0, 0, "node uuid : %s",
+                   uuid_utoa(*uuid_ptr));
         }
+    }
 
-        return ret;
+    return ret;
 }
 
-
 /* Functions for the rebalance estimates feature */
 
 uint64_t
-gf_defrag_subvol_file_size (xlator_t *this, loc_t *root_loc)
+gf_defrag_subvol_file_size(xlator_t *this, loc_t *root_loc)
 {
-        int ret = -1;
-        struct statvfs buf = {0,};
+    int ret = -1;
+    struct statvfs buf = {
+        0,
+    };
 
-        if (!this)
-                return 0;
+    if (!this)
+        return 0;
 
-        ret = syncop_statfs (this, root_loc, &buf, NULL, NULL);
-        if (ret) {
-                /* Aargh! */
-                return 0;
-        }
-        return ((buf.f_blocks - buf.f_bfree) * buf.f_frsize);
+    ret = syncop_statfs(this, root_loc, &buf, NULL, NULL);
+    if (ret) {
+        /* Aargh! */
+        return 0;
+    }
+    return ((buf.f_blocks - buf.f_bfree) * buf.f_frsize);
 }
 
 uint64_t
-gf_defrag_total_file_size (xlator_t *this, loc_t *root_loc)
+gf_defrag_total_file_size(xlator_t *this, loc_t *root_loc)
 {
-        dht_conf_t    *conf  = NULL;
-        int            i     = 0;
-        uint64_t       size_files = 0;
-        uint64_t       total_size = 0;
-
-        conf = this->private;
-        if (!conf) {
-                return 0;
-        }
-
-        for (i = 0 ; i < conf->local_subvols_cnt; i++) {
-                size_files = gf_defrag_subvol_file_size (conf->local_subvols[i],
-                                                         root_loc);
-                total_size += size_files;
-                gf_msg (this->name, GF_LOG_INFO, 0, 0, "local subvol: %s,"
-                        "cnt = %"PRIu64, conf->local_subvols[i]->name,
-                        size_files);
-        }
-
-        gf_msg (this->name, GF_LOG_INFO, 0, 0,
-                "Total size files = %"PRIu64, total_size);
+    dht_conf_t *conf = NULL;
+    int i = 0;
+    uint64_t size_files = 0;
+    uint64_t total_size = 0;
 
-        return total_size;
+    conf = this->private;
+    if (!conf) {
+        return 0;
+    }
+
+    for (i = 0; i < conf->local_subvols_cnt; i++) {
+        size_files = gf_defrag_subvol_file_size(conf->local_subvols[i],
+                                                root_loc);
+        total_size += size_files;
+        gf_msg(this->name, GF_LOG_INFO, 0, 0,
+               "local subvol: %s,"
+               "cnt = %" PRIu64,
+               conf->local_subvols[i]->name, size_files);
+    }
+
+    gf_msg(this->name, GF_LOG_INFO, 0, 0, "Total size files = %" PRIu64,
+           total_size);
+
+    return total_size;
 }
 
-
-static void*
-dht_file_counter_thread (void *args)
+static void *
+dht_file_counter_thread(void *args)
 {
-        gf_defrag_info_t *defrag      = NULL;
-        loc_t root_loc                = {0,};
-        struct timespec time_to_wait  = {0,};
-        struct timeval now            = {0,};
-        uint64_t tmp_size             = 0;
-
-
-        if (!args)
-                return NULL;
-
-        defrag = (gf_defrag_info_t *) args;
-        dht_build_root_loc (defrag->root_inode, &root_loc);
-
-        while (defrag->defrag_status == GF_DEFRAG_STATUS_STARTED) {
-
-                gettimeofday (&now, NULL);
-                time_to_wait.tv_sec = now.tv_sec + 600;
-                time_to_wait.tv_nsec = 0;
+    gf_defrag_info_t *defrag = NULL;
+    loc_t root_loc = {
+        0,
+    };
+    struct timespec time_to_wait = {
+        0,
+    };
+    struct timeval now = {
+        0,
+    };
+    uint64_t tmp_size = 0;
+
+    if (!args)
+        return NULL;
 
+    defrag = (gf_defrag_info_t *)args;
+    dht_build_root_loc(defrag->root_inode, &root_loc);
 
-                pthread_mutex_lock (&defrag->fc_mutex);
-                pthread_cond_timedwait (&defrag->fc_wakeup_cond,
-                                        &defrag->fc_mutex,
-                                        &time_to_wait);
+    while (defrag->defrag_status == GF_DEFRAG_STATUS_STARTED) {
+        gettimeofday(&now, NULL);
+        time_to_wait.tv_sec = now.tv_sec + 600;
+        time_to_wait.tv_nsec = 0;
 
-                pthread_mutex_unlock (&defrag->fc_mutex);
+        pthread_mutex_lock(&defrag->fc_mutex);
+        pthread_cond_timedwait(&defrag->fc_wakeup_cond, &defrag->fc_mutex,
+                               &time_to_wait);
 
+        pthread_mutex_unlock(&defrag->fc_mutex);
 
-                if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED)
-                        break;
+        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED)
+            break;
 
-                tmp_size = gf_defrag_total_file_size (defrag->this,
-                                                         &root_loc);
+        tmp_size = gf_defrag_total_file_size(defrag->this, &root_loc);
 
-                gf_log ("dht", GF_LOG_INFO,
-                        "tmp data size =%"PRIu64,
-                        tmp_size);
+        gf_log("dht", GF_LOG_INFO, "tmp data size =%" PRIu64, tmp_size);
 
-                if (!tmp_size) {
-                        gf_msg ("dht", GF_LOG_ERROR, 0, 0, "Failed to get "
-                                "the total data size. Unable to estimate "
-                                "time to complete rebalance.");
-                } else {
-                        g_totalsize = tmp_size;
-                        gf_msg_debug ("dht", 0,
-                                      "total data size =%"PRIu64,
-                                      g_totalsize);
-                }
+        if (!tmp_size) {
+            gf_msg("dht", GF_LOG_ERROR, 0, 0,
+                   "Failed to get "
+                   "the total data size. Unable to estimate "
+                   "time to complete rebalance.");
+        } else {
+            g_totalsize = tmp_size;
+            gf_msg_debug("dht", 0, "total data size =%" PRIu64, g_totalsize);
         }
+    }
 
-        return NULL;
+    return NULL;
 }
 
 int
-gf_defrag_estimates_cleanup (xlator_t *this, gf_defrag_info_t *defrag,
-                             pthread_t filecnt_thread)
+gf_defrag_estimates_cleanup(xlator_t *this, gf_defrag_info_t *defrag,
+                            pthread_t filecnt_thread)
 {
-        int ret   = -1;
-
-        /* Wake up the filecounter thread.
-         * By now the defrag status will no longer be
-         * GF_DEFRAG_STATUS_STARTED so the thread will exit the loop.
-         */
-        pthread_mutex_lock (&defrag->fc_mutex);
-        {
-                pthread_cond_broadcast (&defrag->fc_wakeup_cond);
-        }
-        pthread_mutex_unlock (&defrag->fc_mutex);
-
-        ret = pthread_join (filecnt_thread, NULL);
-        if (ret) {
-                gf_msg ("dht", GF_LOG_ERROR, ret, 0,
-                        "file_counter_thread: pthread_join failed.");
-                ret = -1;
-        }
-        return ret;
+    int ret = -1;
+
+    /* Wake up the filecounter thread.
+     * By now the defrag status will no longer be
+     * GF_DEFRAG_STATUS_STARTED so the thread will exit the loop.
+     */
+    pthread_mutex_lock(&defrag->fc_mutex);
+    {
+        pthread_cond_broadcast(&defrag->fc_wakeup_cond);
+    }
+    pthread_mutex_unlock(&defrag->fc_mutex);
+
+    ret = pthread_join(filecnt_thread, NULL);
+    if (ret) {
+        gf_msg("dht", GF_LOG_ERROR, ret, 0,
+               "file_counter_thread: pthread_join failed.");
+        ret = -1;
+    }
+    return ret;
 }
 
-
 int
-gf_defrag_estimates_init (xlator_t *this, loc_t *loc,
-                          pthread_t *filecnt_thread)
+gf_defrag_estimates_init(xlator_t *this, loc_t *loc, pthread_t *filecnt_thread)
 {
-        int                      ret            = -1;
-        dht_conf_t              *conf           = NULL;
-        gf_defrag_info_t        *defrag         = NULL;
-
-        conf = this->private;
-        defrag = conf->defrag;
-
-        g_totalsize = gf_defrag_total_file_size (this, loc);
-        if (!g_totalsize) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, 0, "Failed to get "
-                        "the total data size. Unable to estimate "
-                        "time to complete rebalance.");
-                goto out;
-        }
-
-        ret = gf_thread_create (filecnt_thread, NULL,
-                                &dht_file_counter_thread,
-                                (void *)defrag, "dhtfcnt");
-
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, ret, 0, "Failed to "
-                        "create the file counter thread ");
-                ret = -1;
-                goto out;
-        }
-        ret = 0;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+
+    conf = this->private;
+    defrag = conf->defrag;
+
+    g_totalsize = gf_defrag_total_file_size(this, loc);
+    if (!g_totalsize) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, 0,
+               "Failed to get "
+               "the total data size. Unable to estimate "
+               "time to complete rebalance.");
+        goto out;
+    }
+
+    ret = gf_thread_create(filecnt_thread, NULL, &dht_file_counter_thread,
+                           (void *)defrag, "dhtfcnt");
+
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, ret, 0,
+               "Failed to "
+               "create the file counter thread ");
+        ret = -1;
+        goto out;
+    }
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
-
 /* Init and cleanup functions for parallel file migration*/
 int
-gf_defrag_parallel_migration_init (xlator_t *this, gf_defrag_info_t *defrag,
-                                   pthread_t **tid_array, int *thread_index)
+gf_defrag_parallel_migration_init(xlator_t *this, gf_defrag_info_t *defrag,
+                                  pthread_t **tid_array, int *thread_index)
 {
-        int            ret                      = -1;
-        int            thread_spawn_count       = 0;
-        int            index                    = 0;
-        pthread_t     *tid                      = NULL;
-        char           thread_name[GF_THREAD_NAMEMAX] = {0,};
-
-        if (!defrag)
-                goto out;
-
-        /* Initialize global entry queue */
-        defrag->queue = GF_CALLOC (1, sizeof (struct dht_container),
-                                   gf_dht_mt_container_t);
-
-        if (!defrag->queue) {
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM, 0,
-                        "Failed to initialise migration queue");
-                ret = -1;
-                goto out;
-        }
+    int ret = -1;
+    int thread_spawn_count = 0;
+    int index = 0;
+    pthread_t *tid = NULL;
+    char thread_name[GF_THREAD_NAMEMAX] = {
+        0,
+    };
+
+    if (!defrag)
+        goto out;
+
+    /* Initialize global entry queue */
+    defrag->queue = GF_CALLOC(1, sizeof(struct dht_container),
+                              gf_dht_mt_container_t);
+
+    if (!defrag->queue) {
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, 0,
+               "Failed to initialise migration queue");
+        ret = -1;
+        goto out;
+    }
 
-        INIT_LIST_HEAD (&(defrag->queue[0].list));
+    INIT_LIST_HEAD(&(defrag->queue[0].list));
 
-        thread_spawn_count = MAX (MAX_REBAL_THREADS, 4);
+    thread_spawn_count = MAX(MAX_REBAL_THREADS, 4);
 
-        gf_msg_debug (this->name, 0, "thread_spawn_count: %d",
-                      thread_spawn_count);
+    gf_msg_debug(this->name, 0, "thread_spawn_count: %d", thread_spawn_count);
 
-        tid = GF_CALLOC (thread_spawn_count, sizeof (pthread_t),
-                         gf_common_mt_pthread_t);
-        if (!tid) {
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,  0,
-                        "Failed to create migration threads");
-                ret = -1;
-                goto out;
-        }
-        defrag->current_thread_count = thread_spawn_count;
-
-        /*Spawn Threads Here*/
-        while (index < thread_spawn_count) {
-                snprintf (thread_name, sizeof(thread_name),
-                          "dhtmig%d", ((index + 1) & 0x3ff));
-                ret = gf_thread_create (&(tid[index]), NULL,
-                                        &gf_defrag_task, (void *)defrag,
-                                        thread_name);
-                if (ret != 0) {
-                        gf_msg ("DHT", GF_LOG_ERROR, ret, 0,
-                                "Thread[%d] creation failed. ",
-                                 index);
-                         ret = -1;
-                         goto out;
-                } else {
-                        gf_log ("DHT", GF_LOG_INFO, "Thread[%d] "
-                                "creation successful", index);
-                }
-                index++;
+    tid = GF_CALLOC(thread_spawn_count, sizeof(pthread_t),
+                    gf_common_mt_pthread_t);
+    if (!tid) {
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, 0,
+               "Failed to create migration threads");
+        ret = -1;
+        goto out;
+    }
+    defrag->current_thread_count = thread_spawn_count;
+
+    /*Spawn Threads Here*/
+    while (index < thread_spawn_count) {
+        snprintf(thread_name, sizeof(thread_name), "dhtmig%d",
+                 ((index + 1) & 0x3ff));
+        ret = gf_thread_create(&(tid[index]), NULL, &gf_defrag_task,
+                               (void *)defrag, thread_name);
+        if (ret != 0) {
+            gf_msg("DHT", GF_LOG_ERROR, ret, 0, "Thread[%d] creation failed. ",
+                   index);
+            ret = -1;
+            goto out;
+        } else {
+            gf_log("DHT", GF_LOG_INFO,
+                   "Thread[%d] "
+                   "creation successful",
+                   index);
         }
+        index++;
+    }
 
-        ret = 0;
+    ret = 0;
 out:
-        *thread_index = index;
-        *tid_array = tid;
+    *thread_index = index;
+    *tid_array = tid;
 
-        return ret;
+    return ret;
 }
 
 int
-gf_defrag_parallel_migration_cleanup (gf_defrag_info_t *defrag,
-                                      pthread_t *tid_array, int thread_index)
+gf_defrag_parallel_migration_cleanup(gf_defrag_info_t *defrag,
+                                     pthread_t *tid_array, int thread_index)
 {
-        int ret          = -1;
-        int i            =  0;
+    int ret = -1;
+    int i = 0;
 
-        if (!defrag)
-                goto out;
+    if (!defrag)
+        goto out;
 
-        /* Wake up all migration threads */
-        pthread_mutex_lock (&defrag->dfq_mutex);
-        {
-                defrag->crawl_done = 1;
+    /* Wake up all migration threads */
+    pthread_mutex_lock(&defrag->dfq_mutex);
+    {
+        defrag->crawl_done = 1;
 
-                pthread_cond_broadcast (&defrag->parallel_migration_cond);
-                pthread_cond_broadcast (&defrag->df_wakeup_thread);
-        }
-        pthread_mutex_unlock (&defrag->dfq_mutex);
+        pthread_cond_broadcast(&defrag->parallel_migration_cond);
+        pthread_cond_broadcast(&defrag->df_wakeup_thread);
+    }
+    pthread_mutex_unlock(&defrag->dfq_mutex);
 
-        /*Wait for all the threads to complete their task*/
-        for (i = 0; i < thread_index; i++) {
-                pthread_join (tid_array[i], NULL);
-        }
+    /*Wait for all the threads to complete their task*/
+    for (i = 0; i < thread_index; i++) {
+        pthread_join(tid_array[i], NULL);
+    }
 
-        GF_FREE (tid_array);
+    GF_FREE(tid_array);
 
-        /* Cleanup the migration queue */
-        if (defrag->queue) {
-                gf_dirent_free (defrag->queue[0].df_entry);
-                INIT_LIST_HEAD (&(defrag->queue[0].list));
-        }
+    /* Cleanup the migration queue */
+    if (defrag->queue) {
+        gf_dirent_free(defrag->queue[0].df_entry);
+        INIT_LIST_HEAD(&(defrag->queue[0].list));
+    }
 
-        GF_FREE (defrag->queue);
+    GF_FREE(defrag->queue);
 
-        ret = 0;
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
-
-
 int
-gf_defrag_start_crawl (void *data)
+gf_defrag_start_crawl(void *data)
 {
-        xlator_t                *this                   = NULL;
-        dht_conf_t              *conf                   = NULL;
-        gf_defrag_info_t        *defrag                 = NULL;
-        dict_t                  *fix_layout             = NULL;
-        dict_t                  *migrate_data           = NULL;
-        dict_t                  *status                 = NULL;
-        glusterfs_ctx_t         *ctx                    = NULL;
-        dht_methods_t           *methods                = NULL;
-        call_frame_t            *statfs_frame           = NULL;
-        xlator_t                *old_THIS               = NULL;
-        int                      ret                    = -1;
-        loc_t                    loc                    = {0,};
-        struct iatt              iatt                   = {0,};
-        struct iatt              parent                 = {0,};
-        int                      thread_index           = 0;
-        pthread_t               *tid                    = NULL;
-        pthread_t                filecnt_thread;
-        gf_boolean_t             is_tier_detach         = _gf_false;
-        gf_boolean_t             fc_thread_started      = _gf_false;
-
-        this = data;
-        if (!this)
-                goto exit;
-
-        ctx = this->ctx;
-        if (!ctx)
-                goto exit;
-
-        conf = this->private;
-        if (!conf)
-                goto exit;
-
-        defrag = conf->defrag;
-        if (!defrag)
-                goto exit;
-
-        gettimeofday (&defrag->start_time, NULL);
-        dht_build_root_inode (this, &defrag->root_inode);
-        if (!defrag->root_inode)
-                goto out;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    dict_t *fix_layout = NULL;
+    dict_t *migrate_data = NULL;
+    dict_t *status = NULL;
+    glusterfs_ctx_t *ctx = NULL;
+    dht_methods_t *methods = NULL;
+    call_frame_t *statfs_frame = NULL;
+    xlator_t *old_THIS = NULL;
+    int ret = -1;
+    loc_t loc = {
+        0,
+    };
+    struct iatt iatt = {
+        0,
+    };
+    struct iatt parent = {
+        0,
+    };
+    int thread_index = 0;
+    pthread_t *tid = NULL;
+    pthread_t filecnt_thread;
+    gf_boolean_t is_tier_detach = _gf_false;
+    gf_boolean_t fc_thread_started = _gf_false;
+
+    this = data;
+    if (!this)
+        goto exit;
+
+    ctx = this->ctx;
+    if (!ctx)
+        goto exit;
+
+    conf = this->private;
+    if (!conf)
+        goto exit;
+
+    defrag = conf->defrag;
+    if (!defrag)
+        goto exit;
+
+    gettimeofday(&defrag->start_time, NULL);
+    dht_build_root_inode(this, &defrag->root_inode);
+    if (!defrag->root_inode)
+        goto out;
+
+    dht_build_root_loc(defrag->root_inode, &loc);
+
+    /* fix-layout on '/' first */
+
+    ret = syncop_lookup(this, &loc, &iatt, &parent, NULL, NULL);
+
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_REBALANCE_START_FAILED,
+               "Failed to start rebalance: look up on / failed");
+        ret = -1;
+        goto out;
+    }
 
-        dht_build_root_loc (defrag->root_inode, &loc);
+    old_THIS = THIS;
+    THIS = this;
 
-        /* fix-layout on '/' first */
+    statfs_frame = create_frame(this, this->ctx->pool);
+    if (!statfs_frame) {
+        gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, ENOMEM,
+               "Insufficient memory. Frame creation failed");
+        ret = -1;
+        goto out;
+    }
 
-        ret = syncop_lookup (this, &loc, &iatt, &parent, NULL, NULL);
+    /* async statfs update for honoring min-free-disk */
+    dht_get_du_info(statfs_frame, this, &loc);
+    THIS = old_THIS;
 
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_REBALANCE_START_FAILED,
-                        "Failed to start rebalance: look up on / failed");
-                ret = -1;
-                goto out;
-        }
+    fix_layout = dict_new();
+    if (!fix_layout) {
+        ret = -1;
+        goto out;
+    }
+
+    /*
+     * Unfortunately, we can't do special xattrs (like fix.layout) and
+     * real ones in the same call currently, and changing it seems
+     * riskier than just doing two calls.
+     */
+
+    gf_log(this->name, GF_LOG_INFO, "%s using commit hash %u", __func__,
+           conf->vol_commit_hash);
+
+    ret = dict_set_uint32(fix_layout, conf->commithash_xattr_name,
+                          conf->vol_commit_hash);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR, "Failed to set %s",
+               conf->commithash_xattr_name);
+        defrag->total_failures++;
+        ret = -1;
+        goto out;
+    }
+
+    ret = syncop_setxattr(this, &loc, fix_layout, 0, NULL, NULL);
+    if (ret) {
+        gf_log(this->name, GF_LOG_ERROR,
+               "Failed to set commit hash on %s. "
+               "Rebalance cannot proceed.",
+               loc.path);
+        defrag->total_failures++;
+        ret = -1;
+        goto out;
+    }
+
+    /* We now return to our regularly scheduled program. */
+
+    ret = dict_set_str(fix_layout, GF_XATTR_FIX_LAYOUT_KEY, "yes");
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_REBALANCE_START_FAILED,
+               "Failed to start rebalance:"
+               "Failed to set dictionary value: key = %s",
+               GF_XATTR_FIX_LAYOUT_KEY);
+        defrag->total_failures++;
+        ret = -1;
+        goto out;
+    }
 
-        old_THIS = THIS;
-        THIS = this;
+    defrag->new_commit_hash = conf->vol_commit_hash;
 
-        statfs_frame = create_frame (this, this->ctx->pool);
-        if (!statfs_frame) {
-                gf_msg (this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, ENOMEM,
-                        "Insufficient memory. Frame creation failed");
-                ret = -1;
-                goto out;
-        }
+    ret = syncop_setxattr(this, &loc, fix_layout, 0, NULL, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_REBALANCE_FAILED,
+               "fix layout on %s failed", loc.path);
+        defrag->total_failures++;
+        ret = -1;
+        goto out;
+    }
 
-        /* async statfs update for honoring min-free-disk */
-        dht_get_du_info (statfs_frame, this, &loc);
-        THIS = old_THIS;
+    if (defrag->cmd != GF_DEFRAG_CMD_START_LAYOUT_FIX) {
+        /* We need to migrate files */
 
-        fix_layout = dict_new ();
-        if (!fix_layout) {
-                ret = -1;
-                goto out;
+        migrate_data = dict_new();
+        if (!migrate_data) {
+            defrag->total_failures++;
+            ret = -1;
+            goto out;
         }
-
-        /*
-         * Unfortunately, we can't do special xattrs (like fix.layout) and
-         * real ones in the same call currently, and changing it seems
-         * riskier than just doing two calls.
-         */
-
-        gf_log (this->name, GF_LOG_INFO, "%s using commit hash %u",
-                __func__, conf->vol_commit_hash);
-
-        ret = dict_set_uint32 (fix_layout, conf->commithash_xattr_name,
-                               conf->vol_commit_hash);
+        ret = dict_set_str(
+            migrate_data, GF_XATTR_FILE_MIGRATE_KEY,
+            (defrag->cmd == GF_DEFRAG_CMD_START_FORCE) ? "force" : "non-force");
         if (ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "Failed to set %s", conf->commithash_xattr_name);
-                defrag->total_failures++;
-                ret = -1;
-                goto out;
+            defrag->total_failures++;
+            ret = -1;
+            goto out;
         }
 
-        ret = syncop_setxattr (this, &loc, fix_layout, 0, NULL, NULL);
+        ret = dht_init_local_subvols_and_nodeuuids(this, conf, &loc);
         if (ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "Failed to set commit hash on %s. "
-                        "Rebalance cannot proceed.",
-                        loc.path);
-                defrag->total_failures++;
-                ret = -1;
-                goto out;
+            ret = -1;
+            goto out;
         }
 
-        /* We now return to our regularly scheduled program. */
-
-        ret = dict_set_str (fix_layout, GF_XATTR_FIX_LAYOUT_KEY, "yes");
+        /* Initialise the structures required for parallel migration */
+        ret = gf_defrag_parallel_migration_init(this, defrag, &tid,
+                                                &thread_index);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_REBALANCE_START_FAILED,
-                        "Failed to start rebalance:"
-                        "Failed to set dictionary value: key = %s",
-                        GF_XATTR_FIX_LAYOUT_KEY);
-                defrag->total_failures++;
-                ret = -1;
-                goto out;
+            gf_msg(this->name, GF_LOG_ERROR, 0, 0, "Aborting rebalance.");
+            goto out;
         }
 
-        defrag->new_commit_hash = conf->vol_commit_hash;
-
-        ret = syncop_setxattr (this, &loc, fix_layout, 0, NULL, NULL);
+        ret = gf_defrag_estimates_init(this, &loc, &filecnt_thread);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_REBALANCE_FAILED,
-                        "fix layout on %s failed",
-                        loc.path);
-                defrag->total_failures++;
-                ret = -1;
-                goto out;
-        }
-
-        if (defrag->cmd != GF_DEFRAG_CMD_START_LAYOUT_FIX) {
-                /* We need to migrate files */
-
-                migrate_data = dict_new ();
-                if (!migrate_data) {
-                        defrag->total_failures++;
-                        ret = -1;
-                        goto out;
-                }
-                ret = dict_set_str (migrate_data, GF_XATTR_FILE_MIGRATE_KEY,
-                        (defrag->cmd == GF_DEFRAG_CMD_START_FORCE)
-                        ?  "force" : "non-force");
-                if (ret) {
-                        defrag->total_failures++;
-                        ret = -1;
-                        goto out;
-                }
-
-                ret = dht_init_local_subvols_and_nodeuuids (this, conf, &loc);
-                if (ret) {
-                        ret = -1;
-                        goto out;
-                }
-
-                /* Initialise the structures required for parallel migration */
-                ret = gf_defrag_parallel_migration_init (this, defrag, &tid,
-                                                         &thread_index);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0, 0,
-                                "Aborting rebalance.");
-                        goto out;
-                }
-
-                ret = gf_defrag_estimates_init (this, &loc, &filecnt_thread);
-                if (ret) {
-                        /* Not a fatal error. Allow the rebalance to proceed*/
-                        ret = 0;
-                } else {
-                        fc_thread_started = _gf_true;
-                }
-        }
-
-
-        if (defrag->cmd == GF_DEFRAG_CMD_START_TIER) {
-                /* Fix layout for attach tier */
-                ret = gf_tier_start_fix_layout (this, &loc, defrag, fix_layout);
-                if (ret) {
-                        goto out;
-                }
-
-                methods = &(conf->methods);
-
-                /* Calling tier_start of tier.c */
-                methods->migration_other(this, defrag);
-                if (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
-                    defrag->cmd == GF_DEFRAG_CMD_DETACH_START) {
-
-                        ret = dict_set_str (migrate_data,
-                                            GF_XATTR_FILE_MIGRATE_KEY,
-                                            "force");
-                        if (ret)
-                                goto out;
-
-                }
+            /* Not a fatal error. Allow the rebalance to proceed*/
+            ret = 0;
         } else {
-                ret = gf_defrag_fix_layout (this, defrag, &loc, fix_layout,
-                                    migrate_data);
-                if (ret && ret != 2) {
-                        defrag->total_failures++;
-                        ret = -1;
-                        goto out;
-                }
-
-                if (ret != 2 && gf_defrag_settle_hash
-                        (this, defrag, &loc, fix_layout) != 0) {
-                        defrag->total_failures++;
-                        ret = -1;
-                        goto out;
-                }
-
-                if (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
-                    defrag->cmd == GF_DEFRAG_CMD_DETACH_START)
-                        is_tier_detach = _gf_true;
-
+            fc_thread_started = _gf_true;
         }
+    }
 
-        gf_log ("DHT", GF_LOG_INFO, "crawling file-system completed");
-out:
-
-        /* We are here means crawling the entire file system is done
-           or something failed. Set defrag->crawl_done flag to intimate
-           the migrator threads to exhaust the defrag->queue and terminate*/
-
+    if (defrag->cmd == GF_DEFRAG_CMD_START_TIER) {
+        /* Fix layout for attach tier */
+        ret = gf_tier_start_fix_layout(this, &loc, defrag, fix_layout);
         if (ret) {
-                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+            goto out;
         }
 
+        methods = &(conf->methods);
 
-        if (defrag->cmd == GF_DEFRAG_CMD_START_TIER) {
-                /* Wait for the tier fixlayout to
-                 * complete if its was started.*/
-                 gf_tier_wait_fix_lookup (defrag);
-        }
-
-        if (is_tier_detach && ret == 0) {
-                /* If it was a detach remove the tier fix-layout
-                * xattr on root. Ignoring the failure, as nothing has to be
-                * done, logging is done in gf_tier_clear_fix_layout */
-                gf_tier_clear_fix_layout (this, &loc, defrag);
-        }
-
-        gf_defrag_parallel_migration_cleanup (defrag, tid, thread_index);
-
-        if ((defrag->defrag_status != GF_DEFRAG_STATUS_STOPPED) &&
-            (defrag->defrag_status != GF_DEFRAG_STATUS_FAILED)) {
-                defrag->defrag_status = GF_DEFRAG_STATUS_COMPLETE;
+        /* Calling tier_start of tier.c */
+        methods->migration_other(this, defrag);
+        if (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
+            defrag->cmd == GF_DEFRAG_CMD_DETACH_START) {
+            ret = dict_set_str(migrate_data, GF_XATTR_FILE_MIGRATE_KEY,
+                               "force");
+            if (ret)
+                goto out;
         }
-
-        if (fc_thread_started) {
-                gf_defrag_estimates_cleanup (this, defrag, filecnt_thread);
+    } else {
+        ret = gf_defrag_fix_layout(this, defrag, &loc, fix_layout,
+                                   migrate_data);
+        if (ret && ret != 2) {
+            defrag->total_failures++;
+            ret = -1;
+            goto out;
         }
 
-        dht_send_rebalance_event (this, defrag->cmd, defrag->defrag_status);
-
-        LOCK (&defrag->lock);
-        {
-                status = dict_new ();
-                gf_defrag_status_get (conf, status);
-                if (ctx && ctx->notify)
-                        ctx->notify (GF_EN_DEFRAG_STATUS, status);
-                if (status)
-                        dict_unref (status);
-                defrag->is_exiting = 1;
+        if (ret != 2 &&
+            gf_defrag_settle_hash(this, defrag, &loc, fix_layout) != 0) {
+            defrag->total_failures++;
+            ret = -1;
+            goto out;
         }
-        UNLOCK (&defrag->lock);
 
+        if (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
+            defrag->cmd == GF_DEFRAG_CMD_DETACH_START)
+            is_tier_detach = _gf_true;
+    }
 
-        GF_FREE (defrag);
-        conf->defrag = NULL;
-
-        if (migrate_data)
-                dict_unref (migrate_data);
+    gf_log("DHT", GF_LOG_INFO, "crawling file-system completed");
+out:
 
-        if (statfs_frame) {
-                STACK_DESTROY (statfs_frame->root);
-        }
+    /* We are here means crawling the entire file system is done
+       or something failed. Set defrag->crawl_done flag to intimate
+       the migrator threads to exhaust the defrag->queue and terminate*/
+
+    if (ret) {
+        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+    }
+
+    if (defrag->cmd == GF_DEFRAG_CMD_START_TIER) {
+        /* Wait for the tier fixlayout to
+         * complete if its was started.*/
+        gf_tier_wait_fix_lookup(defrag);
+    }
+
+    if (is_tier_detach && ret == 0) {
+        /* If it was a detach remove the tier fix-layout
+         * xattr on root. Ignoring the failure, as nothing has to be
+         * done, logging is done in gf_tier_clear_fix_layout */
+        gf_tier_clear_fix_layout(this, &loc, defrag);
+    }
+
+    gf_defrag_parallel_migration_cleanup(defrag, tid, thread_index);
+
+    if ((defrag->defrag_status != GF_DEFRAG_STATUS_STOPPED) &&
+        (defrag->defrag_status != GF_DEFRAG_STATUS_FAILED)) {
+        defrag->defrag_status = GF_DEFRAG_STATUS_COMPLETE;
+    }
+
+    if (fc_thread_started) {
+        gf_defrag_estimates_cleanup(this, defrag, filecnt_thread);
+    }
+
+    dht_send_rebalance_event(this, defrag->cmd, defrag->defrag_status);
+
+    LOCK(&defrag->lock);
+    {
+        status = dict_new();
+        gf_defrag_status_get(conf, status);
+        if (ctx && ctx->notify)
+            ctx->notify(GF_EN_DEFRAG_STATUS, status);
+        if (status)
+            dict_unref(status);
+        defrag->is_exiting = 1;
+    }
+    UNLOCK(&defrag->lock);
+
+    GF_FREE(defrag);
+    conf->defrag = NULL;
+
+    if (migrate_data)
+        dict_unref(migrate_data);
+
+    if (statfs_frame) {
+        STACK_DESTROY(statfs_frame->root);
+    }
 exit:
-        return ret;
+    return ret;
 }
 
-
-
 static int
-gf_defrag_done  (int ret, call_frame_t *sync_frame, void *data)
+gf_defrag_done(int ret, call_frame_t *sync_frame, void *data)
 {
-        gf_listener_stop (sync_frame->this);
+    gf_listener_stop(sync_frame->this);
 
-        STACK_DESTROY (sync_frame->root);
-        kill (getpid(), SIGTERM);
-        return 0;
+    STACK_DESTROY(sync_frame->root);
+    kill(getpid(), SIGTERM);
+    return 0;
 }
 
 void *
-gf_defrag_start (void *data)
+gf_defrag_start(void *data)
 {
-        int                      ret    = -1;
-        call_frame_t            *frame  = NULL;
-        dht_conf_t              *conf   = NULL;
-        gf_defrag_info_t        *defrag = NULL;
-        xlator_t                *this  = NULL;
-        xlator_t                *old_THIS = NULL;
-
-        this = data;
-        conf = this->private;
-        if (!conf)
-                goto out;
+    int ret = -1;
+    call_frame_t *frame = NULL;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    xlator_t *this = NULL;
+    xlator_t *old_THIS = NULL;
 
-        defrag = conf->defrag;
-        if (!defrag)
-                goto out;
+    this = data;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        frame = create_frame (this, this->ctx->pool);
-        if (!frame)
-                goto out;
+    defrag = conf->defrag;
+    if (!defrag)
+        goto out;
+
+    frame = create_frame(this, this->ctx->pool);
+    if (!frame)
+        goto out;
 
-        frame->root->pid = GF_CLIENT_PID_DEFRAG;
+    frame->root->pid = GF_CLIENT_PID_DEFRAG;
 
-        defrag->pid = frame->root->pid;
+    defrag->pid = frame->root->pid;
 
-        defrag->defrag_status = GF_DEFRAG_STATUS_STARTED;
+    defrag->defrag_status = GF_DEFRAG_STATUS_STARTED;
 
-        old_THIS = THIS;
-        THIS = this;
-        ret = synctask_new (this->ctx->env, gf_defrag_start_crawl,
-                            gf_defrag_done, frame, this);
+    old_THIS = THIS;
+    THIS = this;
+    ret = synctask_new(this->ctx->env, gf_defrag_start_crawl, gf_defrag_done,
+                       frame, this);
 
-        if (ret)
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_REBALANCE_START_FAILED,
-                        "Could not create task for rebalance");
-        THIS = old_THIS;
+    if (ret)
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_REBALANCE_START_FAILED,
+               "Could not create task for rebalance");
+    THIS = old_THIS;
 out:
-        return NULL;
+    return NULL;
 }
 
-
 uint64_t
-gf_defrag_get_estimates_based_on_size (dht_conf_t *conf)
+gf_defrag_get_estimates_based_on_size(dht_conf_t *conf)
 {
-        gf_defrag_info_t *defrag = NULL;
-        double            rate_processed = 0;
-        uint64_t          total_processed = 0;
-        uint64_t          tmp_count = 0;
-        uint64_t          time_to_complete = 0;
-        struct            timeval now = {0,};
-        double            elapsed = 0;
+    gf_defrag_info_t *defrag = NULL;
+    double rate_processed = 0;
+    uint64_t total_processed = 0;
+    uint64_t tmp_count = 0;
+    uint64_t time_to_complete = 0;
+    struct timeval now = {
+        0,
+    };
+    double elapsed = 0;
 
-        defrag = conf->defrag;
+    defrag = conf->defrag;
 
-        if (!g_totalsize)
-                goto out;
+    if (!g_totalsize)
+        goto out;
 
-        gettimeofday (&now, NULL);
-        elapsed = now.tv_sec - defrag->start_time.tv_sec;
+    gettimeofday(&now, NULL);
+    elapsed = now.tv_sec - defrag->start_time.tv_sec;
 
-        /* Don't calculate the estimates for the first 10 minutes.
-         * It is unlikely to be accurate and estimates are not required
-         * if the process finishes in less than 10 mins.
-         */
+    /* Don't calculate the estimates for the first 10 minutes.
+     * It is unlikely to be accurate and estimates are not required
+     * if the process finishes in less than 10 mins.
+     */
 
-        if (elapsed < ESTIMATE_START_INTERVAL) {
-                gf_msg (THIS->name, GF_LOG_INFO, 0, 0,
-                        "Rebalance estimates will not be available for the "
-                        "first %d seconds.", ESTIMATE_START_INTERVAL);
+    if (elapsed < ESTIMATE_START_INTERVAL) {
+        gf_msg(THIS->name, GF_LOG_INFO, 0, 0,
+               "Rebalance estimates will not be available for the "
+               "first %d seconds.",
+               ESTIMATE_START_INTERVAL);
 
-                goto out;
-        }
+        goto out;
+    }
 
-        total_processed = defrag->size_processed;
+    total_processed = defrag->size_processed;
 
-        /* rate at which files processed */
-        rate_processed = (total_processed)/elapsed;
+    /* rate at which files processed */
+    rate_processed = (total_processed) / elapsed;
 
-        tmp_count = g_totalsize;
+    tmp_count = g_totalsize;
 
-        if (rate_processed) {
-                time_to_complete = (tmp_count)/rate_processed;
+    if (rate_processed) {
+        time_to_complete = (tmp_count) / rate_processed;
 
-        } else {
-                gf_msg (THIS->name, GF_LOG_ERROR, 0, 0,
-                        "Unable to calculate estimated time for rebalance");
-        }
+    } else {
+        gf_msg(THIS->name, GF_LOG_ERROR, 0, 0,
+               "Unable to calculate estimated time for rebalance");
+    }
 
-        gf_log (THIS->name, GF_LOG_INFO,
-                "TIME: (size) total_processed=%"PRIu64" tmp_cnt = %"PRIu64","
-                "rate_processed=%f, elapsed = %f", total_processed, tmp_count,
-                rate_processed, elapsed);
+    gf_log(THIS->name, GF_LOG_INFO,
+           "TIME: (size) total_processed=%" PRIu64 " tmp_cnt = %" PRIu64
+           ","
+           "rate_processed=%f, elapsed = %f",
+           total_processed, tmp_count, rate_processed, elapsed);
 
 out:
-        return time_to_complete;
+    return time_to_complete;
 }
 
-
 int
-gf_defrag_status_get (dht_conf_t *conf, dict_t *dict)
+gf_defrag_status_get(dht_conf_t *conf, dict_t *dict)
 {
-        int      ret    = 0;
-        uint64_t files  = 0;
-        uint64_t size   = 0;
-        uint64_t lookup = 0;
-        uint64_t failures = 0;
-        uint64_t skipped = 0;
-        uint64_t promoted = 0;
-        uint64_t demoted = 0;
-        char    *status = "";
-        double   elapsed = 0;
-        struct timeval end = {0,};
-        uint64_t time_to_complete = 0;
-        uint64_t time_left = 0;
-        gf_defrag_info_t *defrag = conf->defrag;
-
-        if (!defrag)
-                goto out;
-
-        ret = 0;
-        if (defrag->defrag_status == GF_DEFRAG_STATUS_NOT_STARTED)
-                goto out;
-
-        files  = defrag->total_files;
-        size   = defrag->total_data;
-        lookup = defrag->num_files_lookedup;
-        failures = defrag->total_failures;
-        skipped = defrag->skipped;
-        promoted = defrag->total_files_promoted;
-        demoted = defrag->total_files_demoted;
-
-        gettimeofday (&end, NULL);
-
-        elapsed = end.tv_sec - defrag->start_time.tv_sec;
-
-
-        /* The rebalance is still in progress */
-
-        if ((defrag->cmd != GF_DEFRAG_CMD_START_TIER)
-            && (defrag->defrag_status == GF_DEFRAG_STATUS_STARTED)) {
-
-                time_to_complete = gf_defrag_get_estimates_based_on_size (conf);
-
-                if (time_to_complete && (time_to_complete > elapsed))
-                        time_left = time_to_complete - elapsed;
-
-                gf_log (THIS->name, GF_LOG_INFO,
-                        "TIME: Estimated total time to complete (size)= %"PRIu64
-                        " seconds, seconds left = %"PRIu64"",
-                        time_to_complete, time_left);
-        }
-
-        if (!dict)
-                goto log;
-
-        ret = dict_set_uint64 (dict, "promoted", promoted);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set promoted count");
-
-        ret = dict_set_uint64 (dict, "demoted", demoted);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set demoted count");
-
-        ret = dict_set_uint64 (dict, "files", files);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set file count");
-
-        ret = dict_set_uint64 (dict, "size", size);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set size of xfer");
-
-        ret = dict_set_uint64 (dict, "lookups", lookup);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set lookedup file count");
-
-
-        ret = dict_set_int32 (dict, "status", defrag->defrag_status);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set status");
-
-        ret = dict_set_double (dict, "run-time", elapsed);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set run-time");
-
-        ret = dict_set_uint64 (dict, "failures", failures);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set failure count");
-
-        ret = dict_set_uint64 (dict, "skipped", skipped);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set skipped file count");
-
-        ret = dict_set_uint64 (dict, "time-left", time_left);
-        if (ret)
-                gf_log (THIS->name, GF_LOG_WARNING,
-                        "failed to set time-left");
+    int ret = 0;
+    uint64_t files = 0;
+    uint64_t size = 0;
+    uint64_t lookup = 0;
+    uint64_t failures = 0;
+    uint64_t skipped = 0;
+    uint64_t promoted = 0;
+    uint64_t demoted = 0;
+    char *status = "";
+    double elapsed = 0;
+    struct timeval end = {
+        0,
+    };
+    uint64_t time_to_complete = 0;
+    uint64_t time_left = 0;
+    gf_defrag_info_t *defrag = conf->defrag;
+
+    if (!defrag)
+        goto out;
+
+    ret = 0;
+    if (defrag->defrag_status == GF_DEFRAG_STATUS_NOT_STARTED)
+        goto out;
+
+    files = defrag->total_files;
+    size = defrag->total_data;
+    lookup = defrag->num_files_lookedup;
+    failures = defrag->total_failures;
+    skipped = defrag->skipped;
+    promoted = defrag->total_files_promoted;
+    demoted = defrag->total_files_demoted;
+
+    gettimeofday(&end, NULL);
+
+    elapsed = end.tv_sec - defrag->start_time.tv_sec;
+
+    /* The rebalance is still in progress */
+
+    if ((defrag->cmd != GF_DEFRAG_CMD_START_TIER) &&
+        (defrag->defrag_status == GF_DEFRAG_STATUS_STARTED)) {
+        time_to_complete = gf_defrag_get_estimates_based_on_size(conf);
+
+        if (time_to_complete && (time_to_complete > elapsed))
+            time_left = time_to_complete - elapsed;
+
+        gf_log(THIS->name, GF_LOG_INFO,
+               "TIME: Estimated total time to complete (size)= %" PRIu64
+               " seconds, seconds left = %" PRIu64 "",
+               time_to_complete, time_left);
+    }
+
+    if (!dict)
+        goto log;
+
+    ret = dict_set_uint64(dict, "promoted", promoted);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set promoted count");
+
+    ret = dict_set_uint64(dict, "demoted", demoted);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set demoted count");
+
+    ret = dict_set_uint64(dict, "files", files);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set file count");
+
+    ret = dict_set_uint64(dict, "size", size);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set size of xfer");
+
+    ret = dict_set_uint64(dict, "lookups", lookup);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set lookedup file count");
+
+    ret = dict_set_int32(dict, "status", defrag->defrag_status);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set status");
+
+    ret = dict_set_double(dict, "run-time", elapsed);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set run-time");
+
+    ret = dict_set_uint64(dict, "failures", failures);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set failure count");
+
+    ret = dict_set_uint64(dict, "skipped", skipped);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set skipped file count");
+
+    ret = dict_set_uint64(dict, "time-left", time_left);
+    if (ret)
+        gf_log(THIS->name, GF_LOG_WARNING, "failed to set time-left");
 
 log:
-        switch (defrag->defrag_status) {
+    switch (defrag->defrag_status) {
         case GF_DEFRAG_STATUS_NOT_STARTED:
-                status = "not started";
-                break;
+            status = "not started";
+            break;
         case GF_DEFRAG_STATUS_STARTED:
-                status = "in progress";
-                break;
+            status = "in progress";
+            break;
         case GF_DEFRAG_STATUS_STOPPED:
-                status = "stopped";
-                break;
+            status = "stopped";
+            break;
         case GF_DEFRAG_STATUS_COMPLETE:
-                status = "completed";
-                break;
+            status = "completed";
+            break;
         case GF_DEFRAG_STATUS_FAILED:
-                status = "failed";
-                break;
+            status = "failed";
+            break;
         default:
-                break;
-        }
-
-        gf_msg (THIS->name, GF_LOG_INFO, 0, DHT_MSG_REBALANCE_STATUS,
-                "Rebalance is %s. Time taken is %.2f secs",
-                status, elapsed);
-        gf_msg (THIS->name, GF_LOG_INFO, 0, DHT_MSG_REBALANCE_STATUS,
-                "Files migrated: %"PRIu64", size: %"
-                PRIu64", lookups: %"PRIu64", failures: %"PRIu64", skipped: "
-                "%"PRIu64, files, size, lookup, failures, skipped);
+            break;
+    }
+
+    gf_msg(THIS->name, GF_LOG_INFO, 0, DHT_MSG_REBALANCE_STATUS,
+           "Rebalance is %s. Time taken is %.2f secs", status, elapsed);
+    gf_msg(THIS->name, GF_LOG_INFO, 0, DHT_MSG_REBALANCE_STATUS,
+           "Files migrated: %" PRIu64 ", size: %" PRIu64 ", lookups: %" PRIu64
+           ", failures: %" PRIu64
+           ", skipped: "
+           "%" PRIu64,
+           files, size, lookup, failures, skipped);
 out:
-        return 0;
+    return 0;
 }
 
 void
-gf_defrag_set_pause_state (gf_tier_conf_t *tier_conf, tier_pause_state_t state)
+gf_defrag_set_pause_state(gf_tier_conf_t *tier_conf, tier_pause_state_t state)
 {
-        pthread_mutex_lock (&tier_conf->pause_mutex);
-        tier_conf->pause_state = state;
-        pthread_mutex_unlock (&tier_conf->pause_mutex);
+    pthread_mutex_lock(&tier_conf->pause_mutex);
+    tier_conf->pause_state = state;
+    pthread_mutex_unlock(&tier_conf->pause_mutex);
 }
 
-
 tier_pause_state_t
-gf_defrag_get_pause_state (gf_tier_conf_t *tier_conf)
+gf_defrag_get_pause_state(gf_tier_conf_t *tier_conf)
 {
-        int state;
+    int state;
 
-        pthread_mutex_lock (&tier_conf->pause_mutex);
-        state = tier_conf->pause_state;
-        pthread_mutex_unlock (&tier_conf->pause_mutex);
+    pthread_mutex_lock(&tier_conf->pause_mutex);
+    state = tier_conf->pause_state;
+    pthread_mutex_unlock(&tier_conf->pause_mutex);
 
-        return state;
+    return state;
 }
 
 tier_pause_state_t
-gf_defrag_check_pause_tier (gf_tier_conf_t *tier_conf)
+gf_defrag_check_pause_tier(gf_tier_conf_t *tier_conf)
 {
-        int woke = 0;
-        int state  = -1;
+    int woke = 0;
+    int state = -1;
 
-        pthread_mutex_lock (&tier_conf->pause_mutex);
+    pthread_mutex_lock(&tier_conf->pause_mutex);
 
-        if (tier_conf->pause_state == TIER_RUNNING)
-                goto out;
+    if (tier_conf->pause_state == TIER_RUNNING)
+        goto out;
 
-        if (tier_conf->pause_state == TIER_PAUSED)
-                goto out;
+    if (tier_conf->pause_state == TIER_PAUSED)
+        goto out;
 
-        if (tier_conf->promote_in_progress ||
-            tier_conf->demote_in_progress)
-                goto out;
+    if (tier_conf->promote_in_progress || tier_conf->demote_in_progress)
+        goto out;
 
-        tier_conf->pause_state = TIER_PAUSED;
+    tier_conf->pause_state = TIER_PAUSED;
 
-        if (tier_conf->pause_synctask) {
-                synctask_wake (tier_conf->pause_synctask);
-                tier_conf->pause_synctask = 0;
-                woke = 1;
-        }
+    if (tier_conf->pause_synctask) {
+        synctask_wake(tier_conf->pause_synctask);
+        tier_conf->pause_synctask = 0;
+        woke = 1;
+    }
 
-        gf_msg ("tier", GF_LOG_DEBUG, 0,
-                DHT_MSG_TIER_PAUSED,
-                "woken %d", woke);
+    gf_msg("tier", GF_LOG_DEBUG, 0, DHT_MSG_TIER_PAUSED, "woken %d", woke);
 
-        gf_event (EVENT_TIER_PAUSE, "vol=%s", tier_conf->volname);
+    gf_event(EVENT_TIER_PAUSE, "vol=%s", tier_conf->volname);
 out:
-        state = tier_conf->pause_state;
+    state = tier_conf->pause_state;
 
-        pthread_mutex_unlock (&tier_conf->pause_mutex);
+    pthread_mutex_unlock(&tier_conf->pause_mutex);
 
-        return state;
+    return state;
 }
 
 void
-gf_defrag_pause_tier_timeout (void *data)
+gf_defrag_pause_tier_timeout(void *data)
 {
-        xlator_t         *this                  = NULL;
-        dht_conf_t       *conf                  = NULL;
-        gf_defrag_info_t *defrag                = NULL;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
 
-        this   = (xlator_t *) data;
-        GF_VALIDATE_OR_GOTO ("tier", this, out);
+    this = (xlator_t *)data;
+    GF_VALIDATE_OR_GOTO("tier", this, out);
 
-        conf   = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, out);
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, out);
 
-        defrag = conf->defrag;
-        GF_VALIDATE_OR_GOTO (this->name, defrag, out);
+    defrag = conf->defrag;
+    GF_VALIDATE_OR_GOTO(this->name, defrag, out);
 
-        gf_msg (this->name, GF_LOG_DEBUG, 0,
-                DHT_MSG_TIER_PAUSED,
-                "Request pause timer timeout");
+    gf_msg(this->name, GF_LOG_DEBUG, 0, DHT_MSG_TIER_PAUSED,
+           "Request pause timer timeout");
 
-        gf_defrag_check_pause_tier (&defrag->tier_conf);
+    gf_defrag_check_pause_tier(&defrag->tier_conf);
 
 out:
-        return;
+    return;
 }
 
 int
-gf_defrag_pause_tier (xlator_t *this, gf_defrag_info_t *defrag)
+gf_defrag_pause_tier(xlator_t *this, gf_defrag_info_t *defrag)
 {
-        int             ret         = 0;
-        struct timespec delta       = {0,};
-        int             delay       = 2;
-
-        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED)
-                goto out;
-
-        /*
-         * Set flag requesting to pause tiering. Wait 'delay' seconds for
-         * tiering to actually stop as indicated by the pause state
-         * before returning success or failure.
-         */
-        gf_defrag_set_pause_state (&defrag->tier_conf, TIER_REQUEST_PAUSE);
-
-        /*
-         * If migration is not underway, can pause immediately.
-         */
-        gf_defrag_check_pause_tier (&defrag->tier_conf);
-        if (gf_defrag_get_pause_state (&defrag->tier_conf) == TIER_PAUSED)
-                goto out;
-
-        gf_msg (this->name, GF_LOG_DEBUG, 0,
-                DHT_MSG_TIER_PAUSED,
-                "Request pause tier");
-
-        defrag->tier_conf.pause_synctask = synctask_get ();
-        delta.tv_sec  = delay;
-        delta.tv_nsec = 0;
-        defrag->tier_conf.pause_timer =
-                gf_timer_call_after (this->ctx, delta,
-                                     gf_defrag_pause_tier_timeout,
-                                     this);
-
-        synctask_yield (defrag->tier_conf.pause_synctask);
-
-        if (gf_defrag_get_pause_state (&defrag->tier_conf) == TIER_PAUSED)
-                goto out;
-
-        gf_defrag_set_pause_state (&defrag->tier_conf, TIER_RUNNING);
-
-        ret = -1;
+    int ret = 0;
+    struct timespec delta = {
+        0,
+    };
+    int delay = 2;
+
+    if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED)
+        goto out;
+
+    /*
+     * Set flag requesting to pause tiering. Wait 'delay' seconds for
+     * tiering to actually stop as indicated by the pause state
+     * before returning success or failure.
+     */
+    gf_defrag_set_pause_state(&defrag->tier_conf, TIER_REQUEST_PAUSE);
+
+    /*
+     * If migration is not underway, can pause immediately.
+     */
+    gf_defrag_check_pause_tier(&defrag->tier_conf);
+    if (gf_defrag_get_pause_state(&defrag->tier_conf) == TIER_PAUSED)
+        goto out;
+
+    gf_msg(this->name, GF_LOG_DEBUG, 0, DHT_MSG_TIER_PAUSED,
+           "Request pause tier");
+
+    defrag->tier_conf.pause_synctask = synctask_get();
+    delta.tv_sec = delay;
+    delta.tv_nsec = 0;
+    defrag->tier_conf.pause_timer = gf_timer_call_after(
+        this->ctx, delta, gf_defrag_pause_tier_timeout, this);
+
+    synctask_yield(defrag->tier_conf.pause_synctask);
+
+    if (gf_defrag_get_pause_state(&defrag->tier_conf) == TIER_PAUSED)
+        goto out;
+
+    gf_defrag_set_pause_state(&defrag->tier_conf, TIER_RUNNING);
+
+    ret = -1;
 out:
 
-        gf_msg (this->name, GF_LOG_DEBUG, 0,
-                DHT_MSG_TIER_PAUSED,
-                "Pause tiering ret=%d", ret);
+    gf_msg(this->name, GF_LOG_DEBUG, 0, DHT_MSG_TIER_PAUSED,
+           "Pause tiering ret=%d", ret);
 
-        return ret;
+    return ret;
 }
 
 int
-gf_defrag_resume_tier (xlator_t *this, gf_defrag_info_t *defrag)
+gf_defrag_resume_tier(xlator_t *this, gf_defrag_info_t *defrag)
 {
-        gf_msg (this->name, GF_LOG_DEBUG, 0,
-                DHT_MSG_TIER_RESUME,
-                "Pause end. Resume tiering");
+    gf_msg(this->name, GF_LOG_DEBUG, 0, DHT_MSG_TIER_RESUME,
+           "Pause end. Resume tiering");
 
-        gf_defrag_set_pause_state (&defrag->tier_conf, TIER_RUNNING);
+    gf_defrag_set_pause_state(&defrag->tier_conf, TIER_RUNNING);
 
-        gf_event (EVENT_TIER_RESUME, "vol=%s", defrag->tier_conf.volname);
+    gf_event(EVENT_TIER_RESUME, "vol=%s", defrag->tier_conf.volname);
 
-        return 0;
+    return 0;
 }
 
 int
-gf_defrag_start_detach_tier (gf_defrag_info_t *defrag)
+gf_defrag_start_detach_tier(gf_defrag_info_t *defrag)
 {
-        defrag->cmd = GF_DEFRAG_CMD_START_DETACH_TIER;
+    defrag->cmd = GF_DEFRAG_CMD_START_DETACH_TIER;
 
-        return 0;
+    return 0;
 }
 
 int
-gf_defrag_stop (dht_conf_t *conf, gf_defrag_status_t status,
-                dict_t *output)
+gf_defrag_stop(dht_conf_t *conf, gf_defrag_status_t status, dict_t *output)
 {
-        /* TODO: set a variable 'stop_defrag' here, it should be checked
-           in defrag loop */
-        int     ret = -1;
-        gf_defrag_info_t *defrag = conf->defrag;
+    /* TODO: set a variable 'stop_defrag' here, it should be checked
+       in defrag loop */
+    int ret = -1;
+    gf_defrag_info_t *defrag = conf->defrag;
 
-        GF_ASSERT (defrag);
+    GF_ASSERT(defrag);
 
-        if (defrag->defrag_status == GF_DEFRAG_STATUS_NOT_STARTED) {
-                goto out;
-        }
+    if (defrag->defrag_status == GF_DEFRAG_STATUS_NOT_STARTED) {
+        goto out;
+    }
 
-        gf_msg ("", GF_LOG_INFO, 0, DHT_MSG_REBALANCE_STOPPED,
-                "Received stop command on rebalance");
-        defrag->defrag_status = status;
+    gf_msg("", GF_LOG_INFO, 0, DHT_MSG_REBALANCE_STOPPED,
+           "Received stop command on rebalance");
+    defrag->defrag_status = status;
 
-        if (output)
-                gf_defrag_status_get (conf, output);
-        ret = 0;
+    if (output)
+        gf_defrag_status_get(conf, output);
+    ret = 0;
 out:
-        gf_msg_debug ("", 0, "Returning %d", ret);
-        return ret;
+    gf_msg_debug("", 0, "Returning %d", ret);
+    return ret;
 }
diff --git a/xlators/cluster/dht/src/dht-rename.c b/xlators/cluster/dht/src/dht-rename.c
index 295d95232ec..45808a2bfa6 100644
--- a/xlators/cluster/dht/src/dht-rename.c
+++ b/xlators/cluster/dht/src/dht-rename.c
@@ -17,483 +17,450 @@
 #include "dht-lock.h"
 #include "defaults.h"
 
-int dht_rename_unlock (call_frame_t *frame, xlator_t *this);
+int
+dht_rename_unlock(call_frame_t *frame, xlator_t *this);
 int32_t
-dht_rename_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int32_t op_ret, int32_t op_errno, dict_t *xdata);
+dht_rename_lock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int32_t op_ret, int32_t op_errno, dict_t *xdata);
 
 int
-dht_rename_unlock_cbk (call_frame_t *frame, void *cookie,
-                       xlator_t *this, int32_t op_ret, int32_t op_errno,
-                       dict_t *xdata)
+dht_rename_unlock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        dht_set_fixed_dir_stat (&local->preoldparent);
-        dht_set_fixed_dir_stat (&local->postoldparent);
-        dht_set_fixed_dir_stat (&local->preparent);
-        dht_set_fixed_dir_stat (&local->postparent);
+    dht_set_fixed_dir_stat(&local->preoldparent);
+    dht_set_fixed_dir_stat(&local->postoldparent);
+    dht_set_fixed_dir_stat(&local->preparent);
+    dht_set_fixed_dir_stat(&local->postparent);
 
-        if (IA_ISREG (local->stbuf.ia_type))
-                DHT_STRIP_PHASE1_FLAGS (&local->stbuf);
+    if (IA_ISREG(local->stbuf.ia_type))
+        DHT_STRIP_PHASE1_FLAGS(&local->stbuf);
 
-        DHT_STACK_UNWIND (rename, frame, local->op_ret, local->op_errno,
-                          &local->stbuf, &local->preoldparent,
-                          &local->postoldparent, &local->preparent,
-                          &local->postparent, local->xattr);
-        return 0;
+    DHT_STACK_UNWIND(rename, frame, local->op_ret, local->op_errno,
+                     &local->stbuf, &local->preoldparent, &local->postoldparent,
+                     &local->preparent, &local->postparent, local->xattr);
+    return 0;
 }
 
 static void
-dht_rename_dir_unlock_src (call_frame_t *frame, xlator_t *this)
+dht_rename_dir_unlock_src(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t *local                      = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
-        dht_unlock_namespace (frame, &local->lock[0]);
-        return;
+    local = frame->local;
+    dht_unlock_namespace(frame, &local->lock[0]);
+    return;
 }
 
 static void
-dht_rename_dir_unlock_dst (call_frame_t *frame, xlator_t *this)
+dht_rename_dir_unlock_dst(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t *local                      = NULL;
-        int          op_ret                     = -1;
-        char         src_gfid[GF_UUID_BUF_SIZE] = {0};
-        char         dst_gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-
-        /* Unlock entrylk */
-        dht_unlock_entrylk_wrapper (frame, &local->lock[1].ns.directory_ns);
-
-        /* Unlock inodelk */
-        op_ret = dht_unlock_inodelk (frame,
-                                     local->lock[1].ns.parent_layout.locks,
-                                     local->lock[1].ns.parent_layout.lk_count,
-                                     dht_rename_unlock_cbk);
-        if (op_ret < 0) {
-                uuid_utoa_r (local->loc.inode->gfid, src_gfid);
-
-                if (local->loc2.inode)
-                        uuid_utoa_r (local->loc2.inode->gfid, dst_gfid);
-
-                if (IA_ISREG (local->stbuf.ia_type))
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_UNLOCKING_FAILED,
-                                "winding unlock inodelk failed "
-                                "rename (%s:%s:%s %s:%s:%s), "
-                                "stale locks left on bricks",
-                                local->loc.path, src_gfid,
-                                local->src_cached->name,
-                                local->loc2.path, dst_gfid,
-                                local->dst_cached ?
-                                local->dst_cached->name : NULL);
-                else
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_UNLOCKING_FAILED,
-                                "winding unlock inodelk failed "
-                                "rename (%s:%s %s:%s), "
-                                "stale locks left on bricks",
-                                local->loc.path, src_gfid,
-                                local->loc2.path, dst_gfid);
-
-                dht_rename_unlock_cbk (frame, NULL, this, 0, 0, NULL);
-        }
+    dht_local_t *local = NULL;
+    int op_ret = -1;
+    char src_gfid[GF_UUID_BUF_SIZE] = {0};
+    char dst_gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+
+    /* Unlock entrylk */
+    dht_unlock_entrylk_wrapper(frame, &local->lock[1].ns.directory_ns);
+
+    /* Unlock inodelk */
+    op_ret = dht_unlock_inodelk(frame, local->lock[1].ns.parent_layout.locks,
+                                local->lock[1].ns.parent_layout.lk_count,
+                                dht_rename_unlock_cbk);
+    if (op_ret < 0) {
+        uuid_utoa_r(local->loc.inode->gfid, src_gfid);
+
+        if (local->loc2.inode)
+            uuid_utoa_r(local->loc2.inode->gfid, dst_gfid);
+
+        if (IA_ISREG(local->stbuf.ia_type))
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+                   "winding unlock inodelk failed "
+                   "rename (%s:%s:%s %s:%s:%s), "
+                   "stale locks left on bricks",
+                   local->loc.path, src_gfid, local->src_cached->name,
+                   local->loc2.path, dst_gfid,
+                   local->dst_cached ? local->dst_cached->name : NULL);
+        else
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+                   "winding unlock inodelk failed "
+                   "rename (%s:%s %s:%s), "
+                   "stale locks left on bricks",
+                   local->loc.path, src_gfid, local->loc2.path, dst_gfid);
 
-        return;
+        dht_rename_unlock_cbk(frame, NULL, this, 0, 0, NULL);
+    }
+
+    return;
 }
 
 static int
-dht_rename_dir_unlock (call_frame_t *frame, xlator_t *this)
+dht_rename_dir_unlock(call_frame_t *frame, xlator_t *this)
 {
-
-        dht_rename_dir_unlock_src (frame, this);
-        dht_rename_dir_unlock_dst (frame, this);
-        return 0;
+    dht_rename_dir_unlock_src(frame, this);
+    dht_rename_dir_unlock_dst(frame, this);
+    return 0;
 }
 int
-dht_rename_dir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                    int32_t op_ret, int32_t op_errno, struct iatt *stbuf,
-                    struct iatt *preoldparent, struct iatt *postoldparent,
-                    struct iatt *prenewparent, struct iatt *postnewparent,
-                    dict_t *xdata)
+dht_rename_dir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                   int32_t op_ret, int32_t op_errno, struct iatt *stbuf,
+                   struct iatt *preoldparent, struct iatt *postoldparent,
+                   struct iatt *prenewparent, struct iatt *postnewparent,
+                   dict_t *xdata)
 {
-        dht_conf_t  *conf                    = NULL;
-        dht_local_t *local                   = NULL;
-        int          this_call_cnt           = 0;
-        xlator_t    *prev                    = NULL;
-        int          i                       = 0;
-        char         gfid[GF_UUID_BUF_SIZE]  = {0};
-        int          subvol_cnt              = -1;
-
-        conf = this->private;
-        local = frame->local;
-        prev = cookie;
-        subvol_cnt = dht_subvol_cnt (this, prev);
-        local->ret_cache[subvol_cnt] = op_ret;
-
-        if (op_ret == -1) {
-                gf_uuid_unparse(local->loc.inode->gfid, gfid);
-
-                gf_msg (this->name, GF_LOG_INFO, op_errno,
-                        DHT_MSG_RENAME_FAILED,
-                        "Rename %s -> %s on %s failed, (gfid = %s)",
-                        local->loc.path, local->loc2.path,
-                        prev->name, gfid);
-
-                local->op_ret   = op_ret;
-                local->op_errno = op_errno;
-                goto unwind;
-        }
-        /* TODO: construct proper stbuf for dir */
-        /*
-         * FIXME: is this the correct way to build stbuf and
-         * parent bufs?
-         */
-        dht_iatt_merge (this, &local->stbuf, stbuf);
-        dht_iatt_merge (this, &local->preoldparent, preoldparent);
-        dht_iatt_merge (this, &local->postoldparent, postoldparent);
-        dht_iatt_merge (this, &local->preparent, prenewparent);
-        dht_iatt_merge (this, &local->postparent, postnewparent);
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    int i = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    int subvol_cnt = -1;
+
+    conf = this->private;
+    local = frame->local;
+    prev = cookie;
+    subvol_cnt = dht_subvol_cnt(this, prev);
+    local->ret_cache[subvol_cnt] = op_ret;
+
+    if (op_ret == -1) {
+        gf_uuid_unparse(local->loc.inode->gfid, gfid);
+
+        gf_msg(this->name, GF_LOG_INFO, op_errno, DHT_MSG_RENAME_FAILED,
+               "Rename %s -> %s on %s failed, (gfid = %s)", local->loc.path,
+               local->loc2.path, prev->name, gfid);
+
+        local->op_ret = op_ret;
+        local->op_errno = op_errno;
+        goto unwind;
+    }
+    /* TODO: construct proper stbuf for dir */
+    /*
+     * FIXME: is this the correct way to build stbuf and
+     * parent bufs?
+     */
+    dht_iatt_merge(this, &local->stbuf, stbuf);
+    dht_iatt_merge(this, &local->preoldparent, preoldparent);
+    dht_iatt_merge(this, &local->postoldparent, postoldparent);
+    dht_iatt_merge(this, &local->preparent, prenewparent);
+    dht_iatt_merge(this, &local->postparent, postnewparent);
 
 unwind:
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                /* We get here with local->call_cnt == 0. Which means
-                 * we are the only one executing this code, there is
-                 * no contention. Therefore it's safe to manipulate or
-                 * deref local->call_cnt directly (without locking).
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        /* We get here with local->call_cnt == 0. Which means
+         * we are the only one executing this code, there is
+         * no contention. Therefore it's safe to manipulate or
+         * deref local->call_cnt directly (without locking).
+         */
+        if (local->ret_cache[conf->subvolume_cnt] == 0) {
+            /* count errant subvols in last field of ret_cache */
+            for (i = 0; i < conf->subvolume_cnt; i++) {
+                if (local->ret_cache[i] != 0)
+                    ++local->ret_cache[conf->subvolume_cnt];
+            }
+            if (local->ret_cache[conf->subvolume_cnt]) {
+                /* undoing the damage:
+                 * for all subvolumes, where rename
+                 * succeeded, we perform the reverse operation
                  */
-                if (local->ret_cache[conf->subvolume_cnt] == 0) {
-                        /* count errant subvols in last field of ret_cache */
-                        for (i = 0; i < conf->subvolume_cnt; i++) {
-                                if (local->ret_cache[i] != 0)
-                                        ++local->ret_cache[conf->subvolume_cnt];
-                        }
-                        if (local->ret_cache[conf->subvolume_cnt]) {
-                                /* undoing the damage:
-                                 * for all subvolumes, where rename
-                                 * succeeded, we perform the reverse operation
-                                 */
-                                for (i = 0; i < conf->subvolume_cnt; i++) {
-                                        if (local->ret_cache[i] == 0)
-                                                ++local->call_cnt;
-                                }
-                                for (i = 0; i < conf->subvolume_cnt; i++) {
-                                        if (local->ret_cache[i])
-                                                continue;
-
-                                        STACK_WIND (frame,
-                                                    dht_rename_dir_cbk,
-                                                    conf->subvolumes[i],
-                                                    conf->subvolumes[i]->fops->rename,
-                                                    &local->loc2, &local->loc,
-                                                    NULL);
-                                }
-
-                                return 0;
-                        }
+                for (i = 0; i < conf->subvolume_cnt; i++) {
+                    if (local->ret_cache[i] == 0)
+                        ++local->call_cnt;
                 }
+                for (i = 0; i < conf->subvolume_cnt; i++) {
+                    if (local->ret_cache[i])
+                        continue;
 
-                WIPE (&local->preoldparent);
-                WIPE (&local->postoldparent);
-                WIPE (&local->preparent);
-                WIPE (&local->postparent);
+                    STACK_WIND(frame, dht_rename_dir_cbk, conf->subvolumes[i],
+                               conf->subvolumes[i]->fops->rename, &local->loc2,
+                               &local->loc, NULL);
+                }
 
-                dht_rename_dir_unlock (frame, this);
+                return 0;
+            }
         }
 
-        return 0;
-}
+        WIPE(&local->preoldparent);
+        WIPE(&local->postoldparent);
+        WIPE(&local->preparent);
+        WIPE(&local->postparent);
 
+        dht_rename_dir_unlock(frame, this);
+    }
+
+    return 0;
+}
 
 int
-dht_rename_hashed_dir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int32_t op_ret, int32_t op_errno, struct iatt *stbuf,
-                           struct iatt *preoldparent,
-                           struct iatt *postoldparent,
-                           struct iatt *prenewparent,
-                           struct iatt *postnewparent, dict_t *xdata)
+dht_rename_hashed_dir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int32_t op_ret, int32_t op_errno, struct iatt *stbuf,
+                          struct iatt *preoldparent, struct iatt *postoldparent,
+                          struct iatt *prenewparent, struct iatt *postnewparent,
+                          dict_t *xdata)
 {
-        dht_conf_t   *conf = NULL;
-        dht_local_t  *local = NULL;
-        int           call_cnt = 0;
-        xlator_t     *prev = NULL;
-        int           i = 0;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
-
-        conf = this->private;
-        local = frame->local;
-        prev = cookie;
-
-
-        if (op_ret == -1) {
-                gf_uuid_unparse(local->loc.inode->gfid, gfid);
-
-                gf_msg (this->name, GF_LOG_INFO, op_errno,
-                        DHT_MSG_RENAME_FAILED,
-                        "rename %s -> %s on %s failed, (gfid = %s) ",
-                        local->loc.path, local->loc2.path,
-                        prev->name, gfid);
-
-                local->op_ret   = op_ret;
-                local->op_errno = op_errno;
-                goto unwind;
-        }
-        /* TODO: construct proper stbuf for dir */
-        /*
-         * FIXME: is this the correct way to build stbuf and
-         * parent bufs?
-         */
-        dht_iatt_merge (this, &local->stbuf, stbuf);
-        dht_iatt_merge (this, &local->preoldparent, preoldparent);
-        dht_iatt_merge (this, &local->postoldparent, postoldparent);
-        dht_iatt_merge (this, &local->preparent, prenewparent);
-        dht_iatt_merge (this, &local->postparent, postnewparent);
-
-        call_cnt = local->call_cnt = conf->subvolume_cnt - 1;
-
-        if (!local->call_cnt)
-                goto unwind;
-
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->subvolumes[i] == local->dst_hashed)
-                        continue;
-                STACK_WIND_COOKIE (frame, dht_rename_dir_cbk,
-                                   conf->subvolumes[i],
-                                   conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->rename,
-                                   &local->loc, &local->loc2, NULL);
-                if (!--call_cnt)
-                        break;
-        }
-
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    int call_cnt = 0;
+    xlator_t *prev = NULL;
+    int i = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    conf = this->private;
+    local = frame->local;
+    prev = cookie;
+
+    if (op_ret == -1) {
+        gf_uuid_unparse(local->loc.inode->gfid, gfid);
 
-        return 0;
+        gf_msg(this->name, GF_LOG_INFO, op_errno, DHT_MSG_RENAME_FAILED,
+               "rename %s -> %s on %s failed, (gfid = %s) ", local->loc.path,
+               local->loc2.path, prev->name, gfid);
+
+        local->op_ret = op_ret;
+        local->op_errno = op_errno;
+        goto unwind;
+    }
+    /* TODO: construct proper stbuf for dir */
+    /*
+     * FIXME: is this the correct way to build stbuf and
+     * parent bufs?
+     */
+    dht_iatt_merge(this, &local->stbuf, stbuf);
+    dht_iatt_merge(this, &local->preoldparent, preoldparent);
+    dht_iatt_merge(this, &local->postoldparent, postoldparent);
+    dht_iatt_merge(this, &local->preparent, prenewparent);
+    dht_iatt_merge(this, &local->postparent, postnewparent);
+
+    call_cnt = local->call_cnt = conf->subvolume_cnt - 1;
+
+    if (!local->call_cnt)
+        goto unwind;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->subvolumes[i] == local->dst_hashed)
+            continue;
+        STACK_WIND_COOKIE(
+            frame, dht_rename_dir_cbk, conf->subvolumes[i], conf->subvolumes[i],
+            conf->subvolumes[i]->fops->rename, &local->loc, &local->loc2, NULL);
+        if (!--call_cnt)
+            break;
+    }
+
+    return 0;
 unwind:
-        WIPE (&local->preoldparent);
-        WIPE (&local->postoldparent);
-        WIPE (&local->preparent);
-        WIPE (&local->postparent);
+    WIPE(&local->preoldparent);
+    WIPE(&local->postoldparent);
+    WIPE(&local->preparent);
+    WIPE(&local->postparent);
 
-        dht_rename_dir_unlock (frame, this);
-        return 0;
+    dht_rename_dir_unlock(frame, this);
+    return 0;
 }
 
-
 int
-dht_rename_dir_do (call_frame_t *frame, xlator_t *this)
+dht_rename_dir_do(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t  *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (local->op_ret == -1)
-                goto err;
+    if (local->op_ret == -1)
+        goto err;
 
-        local->op_ret = 0;
+    local->op_ret = 0;
 
-        STACK_WIND_COOKIE (frame, dht_rename_hashed_dir_cbk, local->dst_hashed,
-                           local->dst_hashed,
-                           local->dst_hashed->fops->rename,
-                           &local->loc, &local->loc2, NULL);
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_rename_hashed_dir_cbk, local->dst_hashed,
+                      local->dst_hashed, local->dst_hashed->fops->rename,
+                      &local->loc, &local->loc2, NULL);
+    return 0;
 
 err:
-        dht_rename_dir_unlock (frame, this);
-        return 0;
+    dht_rename_dir_unlock(frame, this);
+    return 0;
 }
 
-
 int
-dht_rename_readdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int op_ret, int op_errno, gf_dirent_t *entries,
-                        dict_t *xdata)
+dht_rename_readdir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int op_ret, int op_errno, gf_dirent_t *entries,
+                       dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = -1;
-        xlator_t     *prev = NULL;
-
-        local = frame->local;
-        prev  = cookie;
-
-        if (op_ret > 2) {
-                gf_msg_trace (this->name, 0,
-                              "readdir on %s for %s returned %d entries",
-                              prev->name, local->loc.path, op_ret);
-                local->op_ret = -1;
-                local->op_errno = ENOTEMPTY;
-        }
+    dht_local_t *local = NULL;
+    int this_call_cnt = -1;
+    xlator_t *prev = NULL;
 
-        this_call_cnt = dht_frame_return (frame);
+    local = frame->local;
+    prev = cookie;
 
-        if (is_last_call (this_call_cnt)) {
-                dht_rename_dir_do (frame, this);
-        }
+    if (op_ret > 2) {
+        gf_msg_trace(this->name, 0, "readdir on %s for %s returned %d entries",
+                     prev->name, local->loc.path, op_ret);
+        local->op_ret = -1;
+        local->op_errno = ENOTEMPTY;
+    }
 
-        return 0;
-}
+    this_call_cnt = dht_frame_return(frame);
 
+    if (is_last_call(this_call_cnt)) {
+        dht_rename_dir_do(frame, this);
+    }
+
+    return 0;
+}
 
 int
-dht_rename_opendir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int op_ret, int op_errno, fd_t *fd, dict_t *xdata)
+dht_rename_opendir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int op_ret, int op_errno, fd_t *fd, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = -1;
-        xlator_t     *prev = NULL;
-        char          gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        prev  = cookie;
-
+    dht_local_t *local = NULL;
+    int this_call_cnt = -1;
+    xlator_t *prev = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        if (op_ret == -1) {
+    local = frame->local;
+    prev = cookie;
 
-                gf_uuid_unparse(local->loc.inode->gfid, gfid);
-                gf_msg (this->name, GF_LOG_INFO, op_errno,
-                        DHT_MSG_OPENDIR_FAILED,
-                        "opendir on %s for %s failed,(gfid = %s) ",
-                        prev->name, local->loc.path, gfid);
-                goto err;
-        }
+    if (op_ret == -1) {
+        gf_uuid_unparse(local->loc.inode->gfid, gfid);
+        gf_msg(this->name, GF_LOG_INFO, op_errno, DHT_MSG_OPENDIR_FAILED,
+               "opendir on %s for %s failed,(gfid = %s) ", prev->name,
+               local->loc.path, gfid);
+        goto err;
+    }
 
-        fd_bind (fd);
-        STACK_WIND_COOKIE (frame, dht_rename_readdir_cbk, prev, prev,
-                           prev->fops->readdir, local->fd, 4096, 0, NULL);
+    fd_bind(fd);
+    STACK_WIND_COOKIE(frame, dht_rename_readdir_cbk, prev, prev,
+                      prev->fops->readdir, local->fd, 4096, 0, NULL);
 
-        return 0;
+    return 0;
 
 err:
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt)) {
-                dht_rename_dir_do (frame, this);
-        }
+    if (is_last_call(this_call_cnt)) {
+        dht_rename_dir_do(frame, this);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_rename_dir_lock2_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+dht_rename_dir_lock2_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
                          int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                      = NULL;
-        char         src_gfid[GF_UUID_BUF_SIZE] = {0};
-        char         dst_gfid[GF_UUID_BUF_SIZE] = {0};
-        dht_conf_t  *conf                       = NULL;
-        int          i                          = 0;
-
-        local = frame->local;
-        conf = this->private;
-
-        if (op_ret < 0) {
-                uuid_utoa_r (local->loc.inode->gfid, src_gfid);
-
-                if (local->loc2.inode)
-                        uuid_utoa_r (local->loc2.inode->gfid, dst_gfid);
-
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_INODE_LK_ERROR,
-                        "acquiring entrylk after inodelk failed"
-                        "rename (%s:%s:%s %s:%s:%s)",
-                        local->loc.path, src_gfid, local->src_cached->name,
-                        local->loc2.path, dst_gfid,
-                        local->dst_cached ? local->dst_cached->name : NULL);
-
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-                goto err;
-        }
-
-        local->fd = fd_create (local->loc.inode, frame->root->pid);
-        if (!local->fd) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->op_ret = 0;
+    dht_local_t *local = NULL;
+    char src_gfid[GF_UUID_BUF_SIZE] = {0};
+    char dst_gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_conf_t *conf = NULL;
+    int i = 0;
+
+    local = frame->local;
+    conf = this->private;
+
+    if (op_ret < 0) {
+        uuid_utoa_r(local->loc.inode->gfid, src_gfid);
+
+        if (local->loc2.inode)
+            uuid_utoa_r(local->loc2.inode->gfid, dst_gfid);
+
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_INODE_LK_ERROR,
+               "acquiring entrylk after inodelk failed"
+               "rename (%s:%s:%s %s:%s:%s)",
+               local->loc.path, src_gfid, local->src_cached->name,
+               local->loc2.path, dst_gfid,
+               local->dst_cached ? local->dst_cached->name : NULL);
+
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        goto err;
+    }
+
+    local->fd = fd_create(local->loc.inode, frame->root->pid);
+    if (!local->fd) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->op_ret = 0;
+
+    if (!local->dst_cached) {
+        dht_rename_dir_do(frame, this);
+        return 0;
+    }
 
-        if (!local->dst_cached) {
-                dht_rename_dir_do (frame, this);
-                return 0;
-        }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        STACK_WIND_COOKIE(frame, dht_rename_opendir_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->opendir, &local->loc2,
+                          local->fd, NULL);
+    }
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                STACK_WIND_COOKIE (frame, dht_rename_opendir_cbk,
-                                   conf->subvolumes[i],
-                                   conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->opendir,
-                                   &local->loc2, local->fd, NULL);
-        }
-
-        return 0;
+    return 0;
 
 err:
-        /* No harm in calling an extra unlock */
-        dht_rename_dir_unlock (frame, this);
-        return 0;
+    /* No harm in calling an extra unlock */
+    dht_rename_dir_unlock(frame, this);
+    return 0;
 }
 
 int
-dht_rename_dir_lock1_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                             int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_rename_dir_lock1_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                         int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                      = NULL;
-        char         src_gfid[GF_UUID_BUF_SIZE] = {0};
-        char         dst_gfid[GF_UUID_BUF_SIZE] = {0};
-        int          ret                        = 0;
-        loc_t       *loc                        = NULL;
-        xlator_t    *subvol                     = NULL;
-
-        local = frame->local;
-
-        if (op_ret < 0) {
-                uuid_utoa_r (local->loc.inode->gfid, src_gfid);
-
-                if (local->loc2.inode)
-                        uuid_utoa_r (local->loc2.inode->gfid, dst_gfid);
-
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_INODE_LK_ERROR,
-                        "acquiring entrylk after inodelk failed"
-                        "rename (%s:%s:%s %s:%s:%s)",
-                        local->loc.path, src_gfid, local->src_cached->name,
-                        local->loc2.path, dst_gfid,
-                        local->dst_cached ? local->dst_cached->name : NULL);
-
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-                goto err;
-        }
-
-        if (local->current == &local->lock[0]) {
-                loc = &local->loc2;
-                subvol = local->dst_hashed;
-                local->current = &local->lock[1];
-        } else {
-                loc = &local->loc;
-                subvol = local->src_hashed;
-                local->current = &local->lock[0];
-        }
-        ret = dht_protect_namespace (frame, loc, subvol, &local->current->ns,
-                                     dht_rename_dir_lock2_cbk);
-        if (ret < 0) {
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        return 0;
+    dht_local_t *local = NULL;
+    char src_gfid[GF_UUID_BUF_SIZE] = {0};
+    char dst_gfid[GF_UUID_BUF_SIZE] = {0};
+    int ret = 0;
+    loc_t *loc = NULL;
+    xlator_t *subvol = NULL;
+
+    local = frame->local;
+
+    if (op_ret < 0) {
+        uuid_utoa_r(local->loc.inode->gfid, src_gfid);
+
+        if (local->loc2.inode)
+            uuid_utoa_r(local->loc2.inode->gfid, dst_gfid);
+
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_INODE_LK_ERROR,
+               "acquiring entrylk after inodelk failed"
+               "rename (%s:%s:%s %s:%s:%s)",
+               local->loc.path, src_gfid, local->src_cached->name,
+               local->loc2.path, dst_gfid,
+               local->dst_cached ? local->dst_cached->name : NULL);
+
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        goto err;
+    }
+
+    if (local->current == &local->lock[0]) {
+        loc = &local->loc2;
+        subvol = local->dst_hashed;
+        local->current = &local->lock[1];
+    } else {
+        loc = &local->loc;
+        subvol = local->src_hashed;
+        local->current = &local->lock[0];
+    }
+    ret = dht_protect_namespace(frame, loc, subvol, &local->current->ns,
+                                dht_rename_dir_lock2_cbk);
+    if (ret < 0) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    return 0;
 err:
-        /* No harm in calling an extra unlock */
-        dht_rename_dir_unlock (frame, this);
-        return 0;
+    /* No harm in calling an extra unlock */
+    dht_rename_dir_unlock(frame, this);
+    return 0;
 }
 
-
 /*
  * If the hashed subvolumes of both source and dst are the different,
  * lock in dictionary order of hashed subvol->name. This is important
@@ -506,1566 +473,1471 @@ err:
  *
  */
 static void
-dht_order_rename_lock (call_frame_t *frame, loc_t **loc, xlator_t **subvol)
+dht_order_rename_lock(call_frame_t *frame, loc_t **loc, xlator_t **subvol)
 {
-        int ret                 = 0;
-        dht_local_t   *local    = NULL;
-        char           src[GF_UUID_BNAME_BUF_SIZE] = {0};
-        char           dst[GF_UUID_BNAME_BUF_SIZE] = {0};
-
-
-        local = frame->local;
-
-        if (local->src_hashed->name == local->dst_hashed->name) {
-                ret = 0;
-        } else {
-                ret = strcmp (local->src_hashed->name, local->dst_hashed->name);
-        }
-
-        if (ret == 0) {
-
-                /* hashed subvols are the same for src and dst */
-                /* Entrylks need to be ordered*/
-                if (local->loc.pargfid)
-                        uuid_utoa_r (local->loc.pargfid, src);
-                else if (local->loc.parent)
-                        uuid_utoa_r (local->loc.parent->gfid, src);
-
-                strcat (src, local->loc.name);
-
-                if (local->loc2.pargfid)
-                        uuid_utoa_r (local->loc2.pargfid, dst);
-                else if (local->loc2.parent)
-                        uuid_utoa_r (local->loc2.parent->gfid, dst);
-
-                strcat (dst, local->loc2.name);
-                ret = strcmp (src, dst);
-        }
-
-        if (ret <= 0) {
-                /*inodelk in dictionary order of hashed subvol names*/
-                /*entrylk in dictionary order of gfid/basename */
-                local->current = &local->lock[0];
-                *loc = &local->loc;
-                *subvol = local->src_hashed;
-
-        } else {
-                local->current = &local->lock[1];
-                *loc = &local->loc2;
-                *subvol = local->dst_hashed;
-        }
-
-        return;
+    int ret = 0;
+    dht_local_t *local = NULL;
+    char src[GF_UUID_BNAME_BUF_SIZE] = {0};
+    char dst[GF_UUID_BNAME_BUF_SIZE] = {0};
+
+    local = frame->local;
+
+    if (local->src_hashed->name == local->dst_hashed->name) {
+        ret = 0;
+    } else {
+        ret = strcmp(local->src_hashed->name, local->dst_hashed->name);
+    }
+
+    if (ret == 0) {
+        /* hashed subvols are the same for src and dst */
+        /* Entrylks need to be ordered*/
+        if (local->loc.pargfid)
+            uuid_utoa_r(local->loc.pargfid, src);
+        else if (local->loc.parent)
+            uuid_utoa_r(local->loc.parent->gfid, src);
+
+        strcat(src, local->loc.name);
+
+        if (local->loc2.pargfid)
+            uuid_utoa_r(local->loc2.pargfid, dst);
+        else if (local->loc2.parent)
+            uuid_utoa_r(local->loc2.parent->gfid, dst);
+
+        strcat(dst, local->loc2.name);
+        ret = strcmp(src, dst);
+    }
+
+    if (ret <= 0) {
+        /*inodelk in dictionary order of hashed subvol names*/
+        /*entrylk in dictionary order of gfid/basename */
+        local->current = &local->lock[0];
+        *loc = &local->loc;
+        *subvol = local->src_hashed;
+
+    } else {
+        local->current = &local->lock[1];
+        *loc = &local->loc2;
+        *subvol = local->dst_hashed;
+    }
+
+    return;
 }
 
 int
-dht_rename_dir (call_frame_t *frame, xlator_t *this)
+dht_rename_dir(call_frame_t *frame, xlator_t *this)
 {
-        dht_conf_t    *conf         = NULL;
-        dht_local_t   *local        = NULL;
-        loc_t         *loc          = NULL;
-        xlator_t      *subvol       = NULL;
-        int            i            = 0;
-        int            ret          = 0;
-        int            op_errno     = -1;
-
-        conf = frame->this->private;
-        local = frame->local;
-
-        local->ret_cache = GF_CALLOC (conf->subvolume_cnt + 1, sizeof (int),
-                                      gf_dht_ret_cache_t);
-
-        if (local->ret_cache == NULL) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->call_cnt = conf->subvolume_cnt;
-
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (!conf->subvolume_status[i]) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_RENAME_FAILED,
-                                "Rename dir failed: subvolume down (%s)",
-                                conf->subvolumes[i]->name);
-                        op_errno = ENOTCONN;
-                        goto err;
-                }
-        }
-
-
-        /* Locks on src and dst needs to ordered which otherwise might cause
-         * deadlocks when rename (src, dst) and rename (dst, src) is done from
-         * two different clients
-         */
-        dht_order_rename_lock (frame, &loc, &subvol);
-
-        /* Rename must take locks on src to avoid lookup selfheal from
-         * recreating src on those subvols where the rename was successful.
-         * The locks can't be issued parallel as two different clients might
-         * attempt same rename command and be in dead lock.
-         */
-        ret = dht_protect_namespace (frame, loc, subvol,
-                                     &local->current->ns,
-                                     dht_rename_dir_lock1_cbk);
-        if (ret < 0) {
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        return 0;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    loc_t *loc = NULL;
+    xlator_t *subvol = NULL;
+    int i = 0;
+    int ret = 0;
+    int op_errno = -1;
+
+    conf = frame->this->private;
+    local = frame->local;
+
+    local->ret_cache = GF_CALLOC(conf->subvolume_cnt + 1, sizeof(int),
+                                 gf_dht_ret_cache_t);
+
+    if (local->ret_cache == NULL) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->call_cnt = conf->subvolume_cnt;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (!conf->subvolume_status[i]) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_RENAME_FAILED,
+                   "Rename dir failed: subvolume down (%s)",
+                   conf->subvolumes[i]->name);
+            op_errno = ENOTCONN;
+            goto err;
+        }
+    }
+
+    /* Locks on src and dst needs to ordered which otherwise might cause
+     * deadlocks when rename (src, dst) and rename (dst, src) is done from
+     * two different clients
+     */
+    dht_order_rename_lock(frame, &loc, &subvol);
+
+    /* Rename must take locks on src to avoid lookup selfheal from
+     * recreating src on those subvols where the rename was successful.
+     * The locks can't be issued parallel as two different clients might
+     * attempt same rename command and be in dead lock.
+     */
+    ret = dht_protect_namespace(frame, loc, subvol, &local->current->ns,
+                                dht_rename_dir_lock1_cbk);
+    if (ret < 0) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (rename, frame, -1, op_errno, NULL, NULL, NULL, NULL,
-                          NULL, NULL);
-        return 0;
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(rename, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
+    return 0;
 }
 
 static int
-dht_rename_track_for_changelog (xlator_t *this, dict_t *xattr,
-                                loc_t *oldloc, loc_t *newloc)
+dht_rename_track_for_changelog(xlator_t *this, dict_t *xattr, loc_t *oldloc,
+                               loc_t *newloc)
 {
-        int ret        = -1;
-        dht_changelog_rename_info_t *info = NULL;
-        char *name     = NULL;
-        int len1       = 0;
-        int len2       = 0;
-        int size       = 0;
-
-        if (!xattr || !oldloc || !newloc || !this)
-                return ret;
-
-        len1 = strlen (oldloc->name) + 1;
-        len2 = strlen (newloc->name) + 1;
-        size = sizeof (dht_changelog_rename_info_t) + len1 + len2;
-
-        info = GF_CALLOC (size, sizeof(char), gf_common_mt_char);
-        if (!info) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to calloc memory");
-                return ret;
-        }
+    int ret = -1;
+    dht_changelog_rename_info_t *info = NULL;
+    char *name = NULL;
+    int len1 = 0;
+    int len2 = 0;
+    int size = 0;
+
+    if (!xattr || !oldloc || !newloc || !this)
+        return ret;
 
-        gf_uuid_copy (info->old_pargfid, oldloc->pargfid);
-        gf_uuid_copy (info->new_pargfid, newloc->pargfid);
-
-        info->oldname_len = len1;
-        info->newname_len = len2;
-        strncpy (info->buffer, oldloc->name, len1);
-        name = info->buffer + len1;
-        strncpy (name, newloc->name, len2);
-
-        ret = dict_set_bin (xattr, DHT_CHANGELOG_RENAME_OP_KEY,
-                            info, size);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value: key = %s,"
-                        " path = %s", DHT_CHANGELOG_RENAME_OP_KEY,
-                        oldloc->name);
-                GF_FREE (info);
-        }
+    len1 = strlen(oldloc->name) + 1;
+    len2 = strlen(newloc->name) + 1;
+    size = sizeof(dht_changelog_rename_info_t) + len1 + len2;
 
+    info = GF_CALLOC(size, sizeof(char), gf_common_mt_char);
+    if (!info) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to calloc memory");
         return ret;
+    }
+
+    gf_uuid_copy(info->old_pargfid, oldloc->pargfid);
+    gf_uuid_copy(info->new_pargfid, newloc->pargfid);
+
+    info->oldname_len = len1;
+    info->newname_len = len2;
+    strncpy(info->buffer, oldloc->name, len1);
+    name = info->buffer + len1;
+    strncpy(name, newloc->name, len2);
+
+    ret = dict_set_bin(xattr, DHT_CHANGELOG_RENAME_OP_KEY, info, size);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value: key = %s,"
+               " path = %s",
+               DHT_CHANGELOG_RENAME_OP_KEY, oldloc->name);
+        GF_FREE(info);
+    }
+
+    return ret;
 }
 
-
-
-#define DHT_MARKER_DONT_ACCOUNT(xattr) do {                             \
-                int tmp = -1;                                                  \
-                if (!xattr) {                                                  \
-                        xattr = dict_new ();                                   \
-                        if (!xattr)                                            \
-                                break;                                         \
-                }                                                              \
-                tmp = dict_set_str (xattr, GLUSTERFS_MARKER_DONT_ACCOUNT_KEY,  \
-                                    "yes");                                    \
-                if (tmp) {                                                     \
-                        gf_msg (this->name, GF_LOG_ERROR, 0,                    \
-                                DHT_MSG_DICT_SET_FAILED,                       \
-                                "Failed to set dictionary value: key = %s,"    \
-                                " path = %s",GLUSTERFS_MARKER_DONT_ACCOUNT_KEY, \
-                                local->loc.path);                             \
-                }                                                              \
-        }while (0)
-
-
-#define DHT_CHANGELOG_TRACK_AS_RENAME(xattr, oldloc, newloc) do {            \
-                int tmp = -1;                                                \
-                if (!xattr) {                                                \
-                        xattr = dict_new ();                                 \
-                        if (!xattr) {                                        \
-                                gf_msg (this->name, GF_LOG_ERROR, 0,         \
-                                        DHT_MSG_DICT_SET_FAILED,             \
-                                        "Failed to create dictionary to "    \
-                                        "track rename");                     \
-                                break;                                       \
-                        }                                                    \
-                }                                                            \
-                                                                             \
-                tmp = dht_rename_track_for_changelog (this, xattr,           \
-                                oldloc, newloc);                             \
-                                                                             \
-                if (tmp) {                                                   \
-                        gf_msg (this->name, GF_LOG_ERROR, 0,                 \
-                                DHT_MSG_DICT_SET_FAILED,                     \
-                                "Failed to set dictionary value: key = %s,"  \
-                                " path = %s", DHT_CHANGELOG_RENAME_OP_KEY,   \
-                                (oldloc)->path);                             \
-                }                                                            \
-        } while (0)
-
+#define DHT_MARKER_DONT_ACCOUNT(xattr)                                         \
+    do {                                                                       \
+        int tmp = -1;                                                          \
+        if (!xattr) {                                                          \
+            xattr = dict_new();                                                \
+            if (!xattr)                                                        \
+                break;                                                         \
+        }                                                                      \
+        tmp = dict_set_str(xattr, GLUSTERFS_MARKER_DONT_ACCOUNT_KEY, "yes");   \
+        if (tmp) {                                                             \
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,       \
+                   "Failed to set dictionary value: key = %s,"                 \
+                   " path = %s",                                               \
+                   GLUSTERFS_MARKER_DONT_ACCOUNT_KEY, local->loc.path);        \
+        }                                                                      \
+    } while (0)
+
+#define DHT_CHANGELOG_TRACK_AS_RENAME(xattr, oldloc, newloc)                   \
+    do {                                                                       \
+        int tmp = -1;                                                          \
+        if (!xattr) {                                                          \
+            xattr = dict_new();                                                \
+            if (!xattr) {                                                      \
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,   \
+                       "Failed to create dictionary to "                       \
+                       "track rename");                                        \
+                break;                                                         \
+            }                                                                  \
+        }                                                                      \
+                                                                               \
+        tmp = dht_rename_track_for_changelog(this, xattr, oldloc, newloc);     \
+                                                                               \
+        if (tmp) {                                                             \
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,       \
+                   "Failed to set dictionary value: key = %s,"                 \
+                   " path = %s",                                               \
+                   DHT_CHANGELOG_RENAME_OP_KEY, (oldloc)->path);               \
+        }                                                                      \
+    } while (0)
 
 int
-dht_rename_unlock (call_frame_t *frame, xlator_t *this)
+dht_rename_unlock(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t *local                      = NULL;
-        int          op_ret                     = -1;
-        char         src_gfid[GF_UUID_BUF_SIZE] = {0};
-        char         dst_gfid[GF_UUID_BUF_SIZE] = {0};
-        dht_ilock_wrap_t inodelk_wrapper        = {0, };
-
-        local = frame->local;
-        inodelk_wrapper.locks = local->rename_inodelk_backward_compatible;
-        inodelk_wrapper.lk_count = local->rename_inodelk_bc_count;
-
-        op_ret = dht_unlock_inodelk_wrapper (frame, &inodelk_wrapper);
-        if (op_ret < 0) {
-                uuid_utoa_r (local->loc.inode->gfid, src_gfid);
-
-                if (local->loc2.inode)
-                        uuid_utoa_r (local->loc2.inode->gfid, dst_gfid);
-
-                if (IA_ISREG (local->stbuf.ia_type))
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_UNLOCKING_FAILED,
-                                "winding unlock inodelk failed "
-                                "rename (%s:%s:%s %s:%s:%s), "
-                                "stale locks left on bricks",
-                                local->loc.path, src_gfid,
-                                local->src_cached->name,
-                                local->loc2.path, dst_gfid,
-                                local->dst_cached ?
-                                local->dst_cached->name : NULL);
-                else
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_UNLOCKING_FAILED,
-                                "winding unlock inodelk failed "
-                                "rename (%s:%s %s:%s), "
-                                "stale locks left on bricks",
-                                local->loc.path, src_gfid,
-                                local->loc2.path, dst_gfid);
-        }
-
-        dht_unlock_namespace (frame, &local->lock[0]);
-        dht_unlock_namespace (frame, &local->lock[1]);
-
-        dht_rename_unlock_cbk (frame, NULL, this, local->op_ret,
-                               local->op_errno, NULL);
-        return 0;
+    dht_local_t *local = NULL;
+    int op_ret = -1;
+    char src_gfid[GF_UUID_BUF_SIZE] = {0};
+    char dst_gfid[GF_UUID_BUF_SIZE] = {0};
+    dht_ilock_wrap_t inodelk_wrapper = {
+        0,
+    };
+
+    local = frame->local;
+    inodelk_wrapper.locks = local->rename_inodelk_backward_compatible;
+    inodelk_wrapper.lk_count = local->rename_inodelk_bc_count;
+
+    op_ret = dht_unlock_inodelk_wrapper(frame, &inodelk_wrapper);
+    if (op_ret < 0) {
+        uuid_utoa_r(local->loc.inode->gfid, src_gfid);
+
+        if (local->loc2.inode)
+            uuid_utoa_r(local->loc2.inode->gfid, dst_gfid);
+
+        if (IA_ISREG(local->stbuf.ia_type))
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+                   "winding unlock inodelk failed "
+                   "rename (%s:%s:%s %s:%s:%s), "
+                   "stale locks left on bricks",
+                   local->loc.path, src_gfid, local->src_cached->name,
+                   local->loc2.path, dst_gfid,
+                   local->dst_cached ? local->dst_cached->name : NULL);
+        else
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_UNLOCKING_FAILED,
+                   "winding unlock inodelk failed "
+                   "rename (%s:%s %s:%s), "
+                   "stale locks left on bricks",
+                   local->loc.path, src_gfid, local->loc2.path, dst_gfid);
+    }
+
+    dht_unlock_namespace(frame, &local->lock[0]);
+    dht_unlock_namespace(frame, &local->lock[1]);
+
+    dht_rename_unlock_cbk(frame, NULL, this, local->op_ret, local->op_errno,
+                          NULL);
+    return 0;
 }
 
 int
-dht_rename_done (call_frame_t *frame, xlator_t *this)
+dht_rename_done(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t *local                      = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (local->linked == _gf_true) {
-                local->linked = _gf_false;
-                dht_linkfile_attr_heal (frame, this);
-        }
+    if (local->linked == _gf_true) {
+        local->linked = _gf_false;
+        dht_linkfile_attr_heal(frame, this);
+    }
 
-        dht_rename_unlock (frame, this);
-        return 0;
+    dht_rename_unlock(frame, this);
+    return 0;
 }
 
 int
-dht_rename_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int32_t op_ret, int32_t op_errno, struct iatt *preparent,
-                       struct iatt *postparent, dict_t *xdata)
+dht_rename_unlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int32_t op_ret, int32_t op_errno, struct iatt *preparent,
+                      struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        int           this_call_cnt = 0;
-
-        local = frame->local;
-        prev  = cookie;
-
-        FRAME_SU_UNDO (frame, dht_local_t);
-        if (!local) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_INVALID_VALUE,
-                        "!local, should not happen");
-                goto out;
-        }
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    int this_call_cnt = 0;
 
-        this_call_cnt = dht_frame_return (frame);
+    local = frame->local;
+    prev = cookie;
 
-        if (op_ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_UNLINK_FAILED,
-                        "%s: Rename: unlink on %s failed ",
-                        local->loc.path, prev->name);
-        }
+    FRAME_SU_UNDO(frame, dht_local_t);
+    if (!local) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_VALUE,
+               "!local, should not happen");
+        goto out;
+    }
 
-        WIPE (&local->preoldparent);
-        WIPE (&local->postoldparent);
-        WIPE (&local->preparent);
-        WIPE (&local->postparent);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt)) {
-                dht_rename_done (frame, this);
-        }
+    if (op_ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_UNLINK_FAILED,
+               "%s: Rename: unlink on %s failed ", local->loc.path, prev->name);
+    }
+
+    WIPE(&local->preoldparent);
+    WIPE(&local->postoldparent);
+    WIPE(&local->preparent);
+    WIPE(&local->postparent);
+
+    if (is_last_call(this_call_cnt)) {
+        dht_rename_done(frame, this);
+    }
 
 out:
-        return 0;
+    return 0;
 }
 
-
 int
-dht_rename_cleanup (call_frame_t *frame)
+dht_rename_cleanup(call_frame_t *frame)
 {
-        dht_local_t *local                  = NULL;
-        xlator_t    *this                   = NULL;
-        xlator_t    *src_hashed             = NULL;
-        xlator_t    *src_cached             = NULL;
-        xlator_t    *dst_hashed             = NULL;
-        xlator_t    *dst_cached             = NULL;
-        int          call_cnt               = 0;
-        dict_t      *xattr                  = NULL;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        this  = frame->this;
-
-        src_hashed = local->src_hashed;
-        src_cached = local->src_cached;
-        dst_hashed = local->dst_hashed;
-        dst_cached = local->dst_cached;
-
-        if (src_cached == dst_cached)
-                goto nolinks;
-
-        if (local->linked && (dst_hashed != src_hashed) &&
-            (dst_hashed != src_cached)) {
-                call_cnt++;
-        }
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    xlator_t *src_hashed = NULL;
+    xlator_t *src_cached = NULL;
+    xlator_t *dst_hashed = NULL;
+    xlator_t *dst_cached = NULL;
+    int call_cnt = 0;
+    dict_t *xattr = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-        if (local->added_link && (src_cached != dst_hashed)) {
-                call_cnt++;
-        }
+    local = frame->local;
+    this = frame->this;
 
-        local->call_cnt = call_cnt;
+    src_hashed = local->src_hashed;
+    src_cached = local->src_cached;
+    dst_hashed = local->dst_hashed;
+    dst_cached = local->dst_cached;
 
-        if (!call_cnt)
-                goto nolinks;
+    if (src_cached == dst_cached)
+        goto nolinks;
 
-        DHT_MARK_FOP_INTERNAL (xattr);
+    if (local->linked && (dst_hashed != src_hashed) &&
+        (dst_hashed != src_cached)) {
+        call_cnt++;
+    }
 
-        gf_uuid_unparse(local->loc.inode->gfid, gfid);
+    if (local->added_link && (src_cached != dst_hashed)) {
+        call_cnt++;
+    }
 
-        if (local->linked && (dst_hashed != src_hashed) &&
-                        (dst_hashed != src_cached)) {
-                dict_t *xattr_new = NULL;
+    local->call_cnt = call_cnt;
 
-                gf_msg_trace (this->name, 0,
-                              "unlinking linkfile %s @ %s => %s, (gfid = %s)",
-                              local->loc.path, dst_hashed->name,
-                              src_cached->name, gfid);
+    if (!call_cnt)
+        goto nolinks;
 
-                xattr_new = dict_copy_with_ref (xattr, NULL);
+    DHT_MARK_FOP_INTERNAL(xattr);
 
+    gf_uuid_unparse(local->loc.inode->gfid, gfid);
 
-                DHT_MARKER_DONT_ACCOUNT(xattr_new);
+    if (local->linked && (dst_hashed != src_hashed) &&
+        (dst_hashed != src_cached)) {
+        dict_t *xattr_new = NULL;
 
-                FRAME_SU_DO (frame, dht_local_t);
-                STACK_WIND_COOKIE (frame, dht_rename_unlink_cbk, dst_hashed,
-                                   dst_hashed, dst_hashed->fops->unlink,
-                                   &local->loc, 0, xattr_new);
+        gf_msg_trace(this->name, 0,
+                     "unlinking linkfile %s @ %s => %s, (gfid = %s)",
+                     local->loc.path, dst_hashed->name, src_cached->name, gfid);
 
-                dict_unref (xattr_new);
-                xattr_new = NULL;
-        }
+        xattr_new = dict_copy_with_ref(xattr, NULL);
 
-        if (local->added_link && (src_cached != dst_hashed)) {
-                dict_t *xattr_new = NULL;
+        DHT_MARKER_DONT_ACCOUNT(xattr_new);
 
-                gf_msg_trace (this->name, 0,
-                              "unlinking link %s => %s (%s), (gfid = %s)",
-                              local->loc.path, local->loc2.path,
-                              src_cached->name, gfid);
+        FRAME_SU_DO(frame, dht_local_t);
+        STACK_WIND_COOKIE(frame, dht_rename_unlink_cbk, dst_hashed, dst_hashed,
+                          dst_hashed->fops->unlink, &local->loc, 0, xattr_new);
 
-                xattr_new = dict_copy_with_ref (xattr, NULL);
+        dict_unref(xattr_new);
+        xattr_new = NULL;
+    }
 
-                if (gf_uuid_compare (local->loc.pargfid,
-                                  local->loc2.pargfid) == 0) {
-                        DHT_MARKER_DONT_ACCOUNT(xattr_new);
-                }
-                /* *
-                 * The link to file is created using root permission.
-                 * Hence deletion should happen using root. Otherwise
-                 * it will fail.
-                 */
-                FRAME_SU_DO (frame, dht_local_t);
-                STACK_WIND_COOKIE (frame, dht_rename_unlink_cbk, src_cached,
-                                   src_cached, src_cached->fops->unlink,
-                                   &local->loc2, 0, xattr_new);
+    if (local->added_link && (src_cached != dst_hashed)) {
+        dict_t *xattr_new = NULL;
+
+        gf_msg_trace(this->name, 0, "unlinking link %s => %s (%s), (gfid = %s)",
+                     local->loc.path, local->loc2.path, src_cached->name, gfid);
 
-                dict_unref (xattr_new);
-                xattr_new = NULL;
+        xattr_new = dict_copy_with_ref(xattr, NULL);
+
+        if (gf_uuid_compare(local->loc.pargfid, local->loc2.pargfid) == 0) {
+            DHT_MARKER_DONT_ACCOUNT(xattr_new);
         }
+        /* *
+         * The link to file is created using root permission.
+         * Hence deletion should happen using root. Otherwise
+         * it will fail.
+         */
+        FRAME_SU_DO(frame, dht_local_t);
+        STACK_WIND_COOKIE(frame, dht_rename_unlink_cbk, src_cached, src_cached,
+                          src_cached->fops->unlink, &local->loc2, 0, xattr_new);
 
-        if (xattr)
-                dict_unref (xattr);
+        dict_unref(xattr_new);
+        xattr_new = NULL;
+    }
 
-        return 0;
+    if (xattr)
+        dict_unref(xattr);
+
+    return 0;
 
 nolinks:
-        WIPE (&local->preoldparent);
-        WIPE (&local->postoldparent);
-        WIPE (&local->preparent);
-        WIPE (&local->postparent);
+    WIPE(&local->preoldparent);
+    WIPE(&local->postoldparent);
+    WIPE(&local->preparent);
+    WIPE(&local->postparent);
 
-        dht_rename_unlock (frame, this);
-        return 0;
+    dht_rename_unlock(frame, this);
+    return 0;
 }
 
-
 int
-dht_rename_unlink (call_frame_t *frame, xlator_t *this)
+dht_rename_unlink(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *src_hashed = NULL;
-        xlator_t     *src_cached = NULL;
-        xlator_t     *dst_hashed = NULL;
-        xlator_t     *dst_cached = NULL;
-        xlator_t     *rename_subvol = NULL;
-        dict_t       *xattr     = NULL;
-
-        local = frame->local;
-
-        src_hashed = local->src_hashed;
-        src_cached = local->src_cached;
-        dst_hashed = local->dst_hashed;
-        dst_cached = local->dst_cached;
-
-        local->call_cnt = 0;
-
-        /* NOTE: rename_subvol is the same subvolume from which dht_rename_cbk
-         * is called. since rename has already happened on rename_subvol,
-         * unlink shouldn't be sent for oldpath (either linkfile or cached-file)
-         * on rename_subvol. */
-        if (src_cached == dst_cached)
-                rename_subvol = src_cached;
-        else
-                rename_subvol = dst_hashed;
+    dht_local_t *local = NULL;
+    xlator_t *src_hashed = NULL;
+    xlator_t *src_cached = NULL;
+    xlator_t *dst_hashed = NULL;
+    xlator_t *dst_cached = NULL;
+    xlator_t *rename_subvol = NULL;
+    dict_t *xattr = NULL;
 
-        /* TODO: delete files in background */
+    local = frame->local;
 
-        if (src_cached != dst_hashed && src_cached != dst_cached)
-                local->call_cnt++;
+    src_hashed = local->src_hashed;
+    src_cached = local->src_cached;
+    dst_hashed = local->dst_hashed;
+    dst_cached = local->dst_cached;
 
-        if (src_hashed != rename_subvol && src_hashed != src_cached)
-                local->call_cnt++;
+    local->call_cnt = 0;
 
-        if (dst_cached && dst_cached != dst_hashed && dst_cached != src_cached)
-                local->call_cnt++;
+    /* NOTE: rename_subvol is the same subvolume from which dht_rename_cbk
+     * is called. since rename has already happened on rename_subvol,
+     * unlink shouldn't be sent for oldpath (either linkfile or cached-file)
+     * on rename_subvol. */
+    if (src_cached == dst_cached)
+        rename_subvol = src_cached;
+    else
+        rename_subvol = dst_hashed;
 
-        if (local->call_cnt == 0)
-                goto unwind;
+    /* TODO: delete files in background */
 
-        DHT_MARK_FOP_INTERNAL (xattr);
+    if (src_cached != dst_hashed && src_cached != dst_cached)
+        local->call_cnt++;
 
-        if (src_cached != dst_hashed && src_cached != dst_cached) {
-                dict_t *xattr_new = NULL;
+    if (src_hashed != rename_subvol && src_hashed != src_cached)
+        local->call_cnt++;
 
-                xattr_new = dict_copy_with_ref (xattr, NULL);
+    if (dst_cached && dst_cached != dst_hashed && dst_cached != src_cached)
+        local->call_cnt++;
 
-                gf_msg_trace (this->name, 0,
-                              "deleting old src datafile %s @ %s",
-                              local->loc.path, src_cached->name);
+    if (local->call_cnt == 0)
+        goto unwind;
 
-                if (gf_uuid_compare (local->loc.pargfid,
-                                     local->loc2.pargfid) == 0) {
-                        DHT_MARKER_DONT_ACCOUNT(xattr_new);
-                }
+    DHT_MARK_FOP_INTERNAL(xattr);
+
+    if (src_cached != dst_hashed && src_cached != dst_cached) {
+        dict_t *xattr_new = NULL;
 
-                DHT_CHANGELOG_TRACK_AS_RENAME(xattr_new, &local->loc,
-                                              &local->loc2);
-                STACK_WIND_COOKIE (frame, dht_rename_unlink_cbk, src_cached,
-                                   src_cached, src_cached->fops->unlink,
-                                   &local->loc, 0, xattr_new);
+        xattr_new = dict_copy_with_ref(xattr, NULL);
 
-                dict_unref (xattr_new);
-                xattr_new = NULL;
+        gf_msg_trace(this->name, 0, "deleting old src datafile %s @ %s",
+                     local->loc.path, src_cached->name);
+
+        if (gf_uuid_compare(local->loc.pargfid, local->loc2.pargfid) == 0) {
+            DHT_MARKER_DONT_ACCOUNT(xattr_new);
         }
 
-        if (src_hashed != rename_subvol && src_hashed != src_cached) {
-                dict_t *xattr_new = NULL;
+        DHT_CHANGELOG_TRACK_AS_RENAME(xattr_new, &local->loc, &local->loc2);
+        STACK_WIND_COOKIE(frame, dht_rename_unlink_cbk, src_cached, src_cached,
+                          src_cached->fops->unlink, &local->loc, 0, xattr_new);
 
-                xattr_new = dict_copy_with_ref (xattr, NULL);
+        dict_unref(xattr_new);
+        xattr_new = NULL;
+    }
 
-                gf_msg_trace (this->name, 0,
-                              "deleting old src linkfile %s @ %s",
-                              local->loc.path, src_hashed->name);
+    if (src_hashed != rename_subvol && src_hashed != src_cached) {
+        dict_t *xattr_new = NULL;
 
-                DHT_MARKER_DONT_ACCOUNT(xattr_new);
+        xattr_new = dict_copy_with_ref(xattr, NULL);
 
-                STACK_WIND_COOKIE (frame, dht_rename_unlink_cbk, src_hashed,
-                                   src_hashed, src_hashed->fops->unlink,
-                                   &local->loc, 0, xattr_new);
+        gf_msg_trace(this->name, 0, "deleting old src linkfile %s @ %s",
+                     local->loc.path, src_hashed->name);
 
-                dict_unref (xattr_new);
-                xattr_new = NULL;
-        }
+        DHT_MARKER_DONT_ACCOUNT(xattr_new);
 
-        if (dst_cached &&
-            (dst_cached != dst_hashed) &&
-            (dst_cached != src_cached)) {
-                gf_msg_trace (this->name, 0,
-                              "deleting old dst datafile %s @ %s",
-                              local->loc2.path, dst_cached->name);
+        STACK_WIND_COOKIE(frame, dht_rename_unlink_cbk, src_hashed, src_hashed,
+                          src_hashed->fops->unlink, &local->loc, 0, xattr_new);
 
-                STACK_WIND_COOKIE (frame, dht_rename_unlink_cbk, dst_cached,
-                                   dst_cached, dst_cached->fops->unlink,
-                                   &local->loc2, 0, xattr);
-        }
-        if (xattr)
-                dict_unref (xattr);
-        return 0;
+        dict_unref(xattr_new);
+        xattr_new = NULL;
+    }
+
+    if (dst_cached && (dst_cached != dst_hashed) &&
+        (dst_cached != src_cached)) {
+        gf_msg_trace(this->name, 0, "deleting old dst datafile %s @ %s",
+                     local->loc2.path, dst_cached->name);
+
+        STACK_WIND_COOKIE(frame, dht_rename_unlink_cbk, dst_cached, dst_cached,
+                          dst_cached->fops->unlink, &local->loc2, 0, xattr);
+    }
+    if (xattr)
+        dict_unref(xattr);
+    return 0;
 
 unwind:
-        WIPE (&local->preoldparent);
-        WIPE (&local->postoldparent);
-        WIPE (&local->preparent);
-        WIPE (&local->postparent);
+    WIPE(&local->preoldparent);
+    WIPE(&local->postoldparent);
+    WIPE(&local->preparent);
+    WIPE(&local->postparent);
 
-        dht_rename_done (frame, this);
+    dht_rename_done(frame, this);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_rename_links_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                             int32_t op_ret, int32_t op_errno,
-                             inode_t *inode, struct iatt *stbuf,
-                             struct iatt *preparent, struct iatt *postparent,
-                             dict_t *xdata)
+dht_rename_links_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                            int32_t op_ret, int32_t op_errno, inode_t *inode,
+                            struct iatt *stbuf, struct iatt *preparent,
+                            struct iatt *postparent, dict_t *xdata)
 {
-        xlator_t *prev = NULL;
-        dht_local_t  *local = NULL;
-
-        prev = cookie;
-        local = frame->local;
-
-        /* TODO: Handle this case in lookup-optimize */
-        if (op_ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_CREATE_LINK_FAILED,
-                        "link/file %s on %s failed",
-                        local->loc.path, prev->name);
-        }
+    xlator_t *prev = NULL;
+    dht_local_t *local = NULL;
 
-        if (local->linked == _gf_true) {
-                local->linked = _gf_false;
-                dht_linkfile_attr_heal (frame, this);
-        }
+    prev = cookie;
+    local = frame->local;
 
-        dht_rename_unlink (frame, this);
-        return 0;
-}
+    /* TODO: Handle this case in lookup-optimize */
+    if (op_ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_CREATE_LINK_FAILED,
+               "link/file %s on %s failed", local->loc.path, prev->name);
+    }
+
+    if (local->linked == _gf_true) {
+        local->linked = _gf_false;
+        dht_linkfile_attr_heal(frame, this);
+    }
 
+    dht_rename_unlink(frame, this);
+    return 0;
+}
 
 int
-dht_rename_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int32_t op_ret, int32_t op_errno, struct iatt *stbuf,
-                struct iatt *preoldparent, struct iatt *postoldparent,
-                struct iatt *prenewparent, struct iatt *postnewparent,
-                dict_t *xdata)
+dht_rename_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+               int32_t op_ret, int32_t op_errno, struct iatt *stbuf,
+               struct iatt *preoldparent, struct iatt *postoldparent,
+               struct iatt *prenewparent, struct iatt *postnewparent,
+               dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-        xlator_t     *src_cached = NULL;
-        xlator_t     *dst_hashed = NULL;
-        xlator_t     *dst_cached = NULL;
-        loc_t         link_loc  = {0};
-
-        local = frame->local;
-        prev = cookie;
-
-        src_cached = local->src_cached;
-        dst_hashed = local->dst_hashed;
-        dst_cached = local->dst_cached;
-
-        if (local->linked == _gf_true)
-                FRAME_SU_UNDO (frame, dht_local_t);
-
-        /* It is a critical failure iff we fail to rename the cached file
-         * if the rename of the linkto failed, it is not a critical failure,
-         * and we do not want to lose the created hard link for the new
-         * name as that could have been read by other clients.
-         *
-         * NOTE: If another client is attempting the same oldname -> newname
-         * rename, and finds both file names as existing, and are hard links
-         * to each other, then FUSE would send in an unlink for oldname. In
-         * this time duration if we treat the linkto as a critical error and
-         * unlink the newname we created, we would have effectively lost the
-         * file to rename operations.
-         *
-         * Repercussions of treating this as a non-critical error is that
-         * we could leave behind a stale linkto file and/or not create the new
-         * linkto file, the second case would be rectified by a subsequent
-         * lookup, the first case by a rebalance, like for all stale linkto
-         * files */
-
-        if (op_ret == -1) {
-                /* Critical failure: unable to rename the cached file */
-                if (prev == src_cached) {
-                        gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                                DHT_MSG_RENAME_FAILED,
-                                "%s: Rename on %s failed, (gfid = %s) ",
-                                local->loc.path, prev->name,
-                                local->loc.inode ?
-                                uuid_utoa(local->loc.inode->gfid):"");
-                        local->op_ret   = op_ret;
-                        local->op_errno = op_errno;
-                        goto cleanup;
-                } else {
-                        /* Non-critical failure, unable to rename the linkto
-                         * file
-                         */
-                        gf_msg (this->name, GF_LOG_INFO, op_errno,
-                                DHT_MSG_RENAME_FAILED,
-                                "%s: Rename (linkto file) on %s failed, "
-                                "(gfid = %s) ",
-                                local->loc.path, prev->name,
-                                local->loc.inode ?
-                                uuid_utoa(local->loc.inode->gfid):"");
-                }
-        }
-        if (xdata) {
-                if (!local->xattr)
-                        local->xattr = dict_ref (xdata);
-                else
-                        local->xattr = dict_copy_with_ref (xdata, local->xattr);
-        }
-
-        /* Merge attrs only from src_cached. In case there of src_cached !=
-         * dst_hashed, this ignores linkfile attrs. */
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *src_cached = NULL;
+    xlator_t *dst_hashed = NULL;
+    xlator_t *dst_cached = NULL;
+    loc_t link_loc = {0};
+
+    local = frame->local;
+    prev = cookie;
+
+    src_cached = local->src_cached;
+    dst_hashed = local->dst_hashed;
+    dst_cached = local->dst_cached;
+
+    if (local->linked == _gf_true)
+        FRAME_SU_UNDO(frame, dht_local_t);
+
+    /* It is a critical failure iff we fail to rename the cached file
+     * if the rename of the linkto failed, it is not a critical failure,
+     * and we do not want to lose the created hard link for the new
+     * name as that could have been read by other clients.
+     *
+     * NOTE: If another client is attempting the same oldname -> newname
+     * rename, and finds both file names as existing, and are hard links
+     * to each other, then FUSE would send in an unlink for oldname. In
+     * this time duration if we treat the linkto as a critical error and
+     * unlink the newname we created, we would have effectively lost the
+     * file to rename operations.
+     *
+     * Repercussions of treating this as a non-critical error is that
+     * we could leave behind a stale linkto file and/or not create the new
+     * linkto file, the second case would be rectified by a subsequent
+     * lookup, the first case by a rebalance, like for all stale linkto
+     * files */
+
+    if (op_ret == -1) {
+        /* Critical failure: unable to rename the cached file */
         if (prev == src_cached) {
-                dht_iatt_merge (this, &local->stbuf, stbuf);
-                dht_iatt_merge (this, &local->preoldparent, preoldparent);
-                dht_iatt_merge (this, &local->postoldparent, postoldparent);
-                dht_iatt_merge (this, &local->preparent, prenewparent);
-                dht_iatt_merge (this, &local->postparent, postnewparent);
-        }
-
-        /* Create the linkto file for the dst file */
-        if ((src_cached == dst_cached) && (dst_hashed != dst_cached)) {
-
-                loc_copy (&link_loc, &local->loc2);
-                if (link_loc.inode)
-                        inode_unref (link_loc.inode);
-                link_loc.inode = inode_ref (local->loc.inode);
-                gf_uuid_copy (local->gfid, local->loc.inode->gfid);
-                gf_uuid_copy (link_loc.gfid, local->loc.inode->gfid);
-
-                dht_linkfile_create (frame, dht_rename_links_create_cbk,
-                                     this, src_cached, dst_hashed,
-                                     &link_loc);
-                return 0;
-        }
-
-        dht_rename_unlink (frame, this);
+            gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_RENAME_FAILED,
+                   "%s: Rename on %s failed, (gfid = %s) ", local->loc.path,
+                   prev->name,
+                   local->loc.inode ? uuid_utoa(local->loc.inode->gfid) : "");
+            local->op_ret = op_ret;
+            local->op_errno = op_errno;
+            goto cleanup;
+        } else {
+            /* Non-critical failure, unable to rename the linkto
+             * file
+             */
+            gf_msg(this->name, GF_LOG_INFO, op_errno, DHT_MSG_RENAME_FAILED,
+                   "%s: Rename (linkto file) on %s failed, "
+                   "(gfid = %s) ",
+                   local->loc.path, prev->name,
+                   local->loc.inode ? uuid_utoa(local->loc.inode->gfid) : "");
+        }
+    }
+    if (xdata) {
+        if (!local->xattr)
+            local->xattr = dict_ref(xdata);
+        else
+            local->xattr = dict_copy_with_ref(xdata, local->xattr);
+    }
+
+    /* Merge attrs only from src_cached. In case there of src_cached !=
+     * dst_hashed, this ignores linkfile attrs. */
+    if (prev == src_cached) {
+        dht_iatt_merge(this, &local->stbuf, stbuf);
+        dht_iatt_merge(this, &local->preoldparent, preoldparent);
+        dht_iatt_merge(this, &local->postoldparent, postoldparent);
+        dht_iatt_merge(this, &local->preparent, prenewparent);
+        dht_iatt_merge(this, &local->postparent, postnewparent);
+    }
+
+    /* Create the linkto file for the dst file */
+    if ((src_cached == dst_cached) && (dst_hashed != dst_cached)) {
+        loc_copy(&link_loc, &local->loc2);
+        if (link_loc.inode)
+            inode_unref(link_loc.inode);
+        link_loc.inode = inode_ref(local->loc.inode);
+        gf_uuid_copy(local->gfid, local->loc.inode->gfid);
+        gf_uuid_copy(link_loc.gfid, local->loc.inode->gfid);
+
+        dht_linkfile_create(frame, dht_rename_links_create_cbk, this,
+                            src_cached, dst_hashed, &link_loc);
         return 0;
+    }
+
+    dht_rename_unlink(frame, this);
+    return 0;
 
 cleanup:
-        dht_rename_cleanup (frame);
+    dht_rename_cleanup(frame);
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_do_rename (call_frame_t *frame)
+dht_do_rename(call_frame_t *frame)
 {
-        dht_local_t *local         = NULL;
-        xlator_t    *dst_hashed    = NULL;
-        xlator_t    *src_cached    = NULL;
-        xlator_t    *dst_cached    = NULL;
-        xlator_t    *this          = NULL;
-        xlator_t    *rename_subvol = NULL;
-
-        local = frame->local;
-        this  = frame->this;
-
-        dst_hashed = local->dst_hashed;
-        dst_cached = local->dst_cached;
-        src_cached = local->src_cached;
-
-        if (src_cached == dst_cached)
-                rename_subvol = src_cached;
-        else
-                rename_subvol = dst_hashed;
-
-        if ((src_cached != dst_hashed) && (rename_subvol == dst_hashed)) {
-                DHT_MARKER_DONT_ACCOUNT(local->xattr_req);
-        }
-
-        if (rename_subvol == src_cached) {
-                DHT_CHANGELOG_TRACK_AS_RENAME(local->xattr_req, &local->loc,
-                                              &local->loc2);
-        }
-
-        gf_msg_trace (this->name, 0,
-                      "renaming %s => %s (%s)",
-                      local->loc.path, local->loc2.path, rename_subvol->name);
-
-        if (local->linked == _gf_true)
-                FRAME_SU_DO (frame, dht_local_t);
-        STACK_WIND_COOKIE (frame, dht_rename_cbk, rename_subvol, rename_subvol,
-                           rename_subvol->fops->rename, &local->loc,
-                           &local->loc2, local->xattr_req);
-        return 0;
+    dht_local_t *local = NULL;
+    xlator_t *dst_hashed = NULL;
+    xlator_t *src_cached = NULL;
+    xlator_t *dst_cached = NULL;
+    xlator_t *this = NULL;
+    xlator_t *rename_subvol = NULL;
+
+    local = frame->local;
+    this = frame->this;
+
+    dst_hashed = local->dst_hashed;
+    dst_cached = local->dst_cached;
+    src_cached = local->src_cached;
+
+    if (src_cached == dst_cached)
+        rename_subvol = src_cached;
+    else
+        rename_subvol = dst_hashed;
+
+    if ((src_cached != dst_hashed) && (rename_subvol == dst_hashed)) {
+        DHT_MARKER_DONT_ACCOUNT(local->xattr_req);
+    }
+
+    if (rename_subvol == src_cached) {
+        DHT_CHANGELOG_TRACK_AS_RENAME(local->xattr_req, &local->loc,
+                                      &local->loc2);
+    }
+
+    gf_msg_trace(this->name, 0, "renaming %s => %s (%s)", local->loc.path,
+                 local->loc2.path, rename_subvol->name);
+
+    if (local->linked == _gf_true)
+        FRAME_SU_DO(frame, dht_local_t);
+    STACK_WIND_COOKIE(frame, dht_rename_cbk, rename_subvol, rename_subvol,
+                      rename_subvol->fops->rename, &local->loc, &local->loc2,
+                      local->xattr_req);
+    return 0;
 }
 
 int
-dht_rename_link_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                      int32_t op_ret, int32_t op_errno,
-                      inode_t *inode, struct iatt *stbuf,
-                      struct iatt *preparent, struct iatt *postparent,
-                      dict_t *xdata)
+dht_rename_link_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int32_t op_ret, int32_t op_errno, inode_t *inode,
+                    struct iatt *stbuf, struct iatt *preparent,
+                    struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
 
-        local = frame->local;
-        prev = cookie;
+    local = frame->local;
+    prev = cookie;
 
-        if (op_ret == -1) {
-                gf_msg_debug (this->name, 0,
-                              "link/file on %s failed (%s)",
-                              prev->name, strerror (op_errno));
-                local->op_ret   = -1;
-                local->op_errno = op_errno;
-                local->added_link = _gf_false;
-        } else
-                dht_iatt_merge (this, &local->stbuf, stbuf);
+    if (op_ret == -1) {
+        gf_msg_debug(this->name, 0, "link/file on %s failed (%s)", prev->name,
+                     strerror(op_errno));
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        local->added_link = _gf_false;
+    } else
+        dht_iatt_merge(this, &local->stbuf, stbuf);
 
-        if (local->op_ret == -1)
-                goto cleanup;
+    if (local->op_ret == -1)
+        goto cleanup;
 
-        dht_do_rename (frame);
+    dht_do_rename(frame);
 
-        return 0;
+    return 0;
 
 cleanup:
-        dht_rename_cleanup (frame);
+    dht_rename_cleanup(frame);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_rename_linkto_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                      int32_t op_ret, int32_t op_errno,
-                      inode_t *inode, struct iatt *stbuf,
-                      struct iatt *preparent, struct iatt *postparent,
-                      dict_t *xdata)
+dht_rename_linkto_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int32_t op_ret, int32_t op_errno, inode_t *inode,
+                      struct iatt *stbuf, struct iatt *preparent,
+                      struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t     *local = NULL;
-        xlator_t        *prev = NULL;
-        xlator_t        *src_cached = NULL;
-        dict_t          *xattr = NULL;
-
-        local = frame->local;
-        DHT_MARK_FOP_INTERNAL (xattr);
-        prev = cookie;
-        src_cached = local->src_cached;
-
-        if (op_ret == -1) {
-                gf_msg_debug (this->name, 0,
-                              "link/file on %s failed (%s)",
-                              prev->name, strerror (op_errno));
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-        }
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *src_cached = NULL;
+    dict_t *xattr = NULL;
 
-        /* If linkto creation failed move to failure cleanup code,
-        * instead of continuing with creating the link file */
-        if (local->op_ret != 0) {
-                goto cleanup;
-        }
+    local = frame->local;
+    DHT_MARK_FOP_INTERNAL(xattr);
+    prev = cookie;
+    src_cached = local->src_cached;
 
-        gf_msg_trace (this->name, 0,
-                      "link %s => %s (%s)", local->loc.path,
-                      local->loc2.path, src_cached->name);
-        if (gf_uuid_compare (local->loc.pargfid,
-                                local->loc2.pargfid) == 0) {
-                DHT_MARKER_DONT_ACCOUNT(xattr);
-        }
+    if (op_ret == -1) {
+        gf_msg_debug(this->name, 0, "link/file on %s failed (%s)", prev->name,
+                     strerror(op_errno));
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+    }
 
-        local->added_link = _gf_true;
+    /* If linkto creation failed move to failure cleanup code,
+     * instead of continuing with creating the link file */
+    if (local->op_ret != 0) {
+        goto cleanup;
+    }
 
-        STACK_WIND_COOKIE (frame, dht_rename_link_cbk, src_cached, src_cached,
-                           src_cached->fops->link, &local->loc, &local->loc2,
-                           xattr);
+    gf_msg_trace(this->name, 0, "link %s => %s (%s)", local->loc.path,
+                 local->loc2.path, src_cached->name);
+    if (gf_uuid_compare(local->loc.pargfid, local->loc2.pargfid) == 0) {
+        DHT_MARKER_DONT_ACCOUNT(xattr);
+    }
 
-        if (xattr)
-                dict_unref (xattr);
+    local->added_link = _gf_true;
 
-        return 0;
+    STACK_WIND_COOKIE(frame, dht_rename_link_cbk, src_cached, src_cached,
+                      src_cached->fops->link, &local->loc, &local->loc2, xattr);
+
+    if (xattr)
+        dict_unref(xattr);
+
+    return 0;
 
 cleanup:
-        dht_rename_cleanup (frame);
+    dht_rename_cleanup(frame);
 
-        if (xattr)
-                dict_unref (xattr);
+    if (xattr)
+        dict_unref(xattr);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_rename_unlink_links_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                             int32_t op_ret, int32_t op_errno,
-                             struct iatt *preparent, struct iatt *postparent,
-                             dict_t *xdata)
+dht_rename_unlink_links_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                            int32_t op_ret, int32_t op_errno,
+                            struct iatt *preparent, struct iatt *postparent,
+                            dict_t *xdata)
 {
-	dht_local_t  *local = NULL;
-	xlator_t     *prev = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
 
+    local = frame->local;
+    prev = cookie;
 
-	local = frame->local;
-	prev = cookie;
+    if ((op_ret == -1) && (op_errno != ENOENT)) {
+        gf_msg_debug(this->name, 0, "unlink of %s on %s failed (%s)",
+                     local->loc2.path, prev->name, strerror(op_errno));
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+    }
 
-	if ((op_ret == -1) && (op_errno != ENOENT)) {
-		gf_msg_debug (this->name, 0,
-		              "unlink of %s on %s failed (%s)",
-			      local->loc2.path, prev->name,
-                              strerror (op_errno));
-		local->op_ret   = -1;
-		local->op_errno = op_errno;
-	}
+    if (local->op_ret == -1)
+        goto cleanup;
 
-        if (local->op_ret == -1)
-                goto cleanup;
+    dht_do_rename(frame);
 
-        dht_do_rename (frame);
-
-	return 0;
+    return 0;
 
 cleanup:
-        dht_rename_cleanup (frame);
+    dht_rename_cleanup(frame);
 
-	return 0;
+    return 0;
 }
 
-
 int
-dht_rename_create_links (call_frame_t *frame)
+dht_rename_create_links(call_frame_t *frame)
 {
-        dht_local_t *local = NULL;
-        xlator_t    *this = NULL;
-        xlator_t    *src_hashed = NULL;
-        xlator_t    *src_cached = NULL;
-        xlator_t    *dst_hashed = NULL;
-        xlator_t    *dst_cached = NULL;
-        int          call_cnt = 0;
-        dict_t      *xattr = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    xlator_t *src_hashed = NULL;
+    xlator_t *src_cached = NULL;
+    xlator_t *dst_hashed = NULL;
+    xlator_t *dst_cached = NULL;
+    int call_cnt = 0;
+    dict_t *xattr = NULL;
 
+    local = frame->local;
+    this = frame->this;
 
-        local = frame->local;
-        this  = frame->this;
+    src_hashed = local->src_hashed;
+    src_cached = local->src_cached;
+    dst_hashed = local->dst_hashed;
+    dst_cached = local->dst_cached;
 
-        src_hashed = local->src_hashed;
-        src_cached = local->src_cached;
-        dst_hashed = local->dst_hashed;
-        dst_cached = local->dst_cached;
+    DHT_MARK_FOP_INTERNAL(xattr);
 
-        DHT_MARK_FOP_INTERNAL (xattr);
+    if (src_cached == dst_cached) {
+        dict_t *xattr_new = NULL;
 
-        if (src_cached == dst_cached) {
-                dict_t *xattr_new = NULL;
+        if (dst_hashed == dst_cached)
+            goto nolinks;
 
-                if (dst_hashed == dst_cached)
-                        goto nolinks;
+        xattr_new = dict_copy_with_ref(xattr, NULL);
 
-                xattr_new = dict_copy_with_ref (xattr, NULL);
+        gf_msg_trace(this->name, 0, "unlinking dst linkfile %s @ %s",
+                     local->loc2.path, dst_hashed->name);
 
-		gf_msg_trace (this->name, 0,
-		              "unlinking dst linkfile %s @ %s",
-			      local->loc2.path, dst_hashed->name);
+        DHT_MARKER_DONT_ACCOUNT(xattr_new);
 
-                DHT_MARKER_DONT_ACCOUNT(xattr_new);
+        STACK_WIND_COOKIE(frame, dht_rename_unlink_links_cbk, dst_hashed,
+                          dst_hashed, dst_hashed->fops->unlink, &local->loc2, 0,
+                          xattr_new);
 
-		STACK_WIND_COOKIE (frame, dht_rename_unlink_links_cbk,
-                                   dst_hashed, dst_hashed,
-			           dst_hashed->fops->unlink, &local->loc2, 0,
-			           xattr_new);
-
-                dict_unref (xattr_new);
-                if (xattr)
-                        dict_unref (xattr);
-
-                return 0;
-        }
+        dict_unref(xattr_new);
+        if (xattr)
+            dict_unref(xattr);
 
-        if (src_cached != dst_hashed) {
-                /* needed to create the link file */
-                call_cnt++;
-                if (dst_hashed != src_hashed)
-                        /* needed to create the linkto file */
-                        call_cnt ++;
+        return 0;
+    }
+
+    if (src_cached != dst_hashed) {
+        /* needed to create the link file */
+        call_cnt++;
+        if (dst_hashed != src_hashed)
+            /* needed to create the linkto file */
+            call_cnt++;
+    }
+
+    /* We should not have any failures post the link creation, as this
+     * introduces the newname into the namespace. Clients could have cached
+     * the existence of the newname and may start taking actions based on
+     * the same. Hence create the linkto first, and then attempt the link.
+     *
+     * NOTE: If another client is attempting the same oldname -> newname
+     * rename, and finds both file names as existing, and are hard links
+     * to each other, then FUSE would send in an unlink for oldname. In
+     * this time duration if we treat the linkto as a critical error and
+     * unlink the newname we created, we would have effectively lost the
+     * file to rename operations. */
+    if (dst_hashed != src_hashed && src_cached != dst_hashed) {
+        gf_msg_trace(this->name, 0, "linkfile %s @ %s => %s", local->loc.path,
+                     dst_hashed->name, src_cached->name);
+
+        memcpy(local->gfid, local->loc.inode->gfid, 16);
+        dht_linkfile_create(frame, dht_rename_linkto_cbk, this, src_cached,
+                            dst_hashed, &local->loc);
+    } else if (src_cached != dst_hashed) {
+        dict_t *xattr_new = NULL;
+
+        xattr_new = dict_copy_with_ref(xattr, NULL);
+
+        gf_msg_trace(this->name, 0, "link %s => %s (%s)", local->loc.path,
+                     local->loc2.path, src_cached->name);
+        if (gf_uuid_compare(local->loc.pargfid, local->loc2.pargfid) == 0) {
+            DHT_MARKER_DONT_ACCOUNT(xattr_new);
         }
 
-        /* We should not have any failures post the link creation, as this
-         * introduces the newname into the namespace. Clients could have cached
-         * the existence of the newname and may start taking actions based on
-         * the same. Hence create the linkto first, and then attempt the link.
-         *
-         * NOTE: If another client is attempting the same oldname -> newname
-         * rename, and finds both file names as existing, and are hard links
-         * to each other, then FUSE would send in an unlink for oldname. In
-         * this time duration if we treat the linkto as a critical error and
-         * unlink the newname we created, we would have effectively lost the
-         * file to rename operations. */
-        if (dst_hashed != src_hashed && src_cached != dst_hashed) {
-                gf_msg_trace (this->name, 0,
-                              "linkfile %s @ %s => %s",
-                              local->loc.path, dst_hashed->name,
-                              src_cached->name);
-
-                memcpy (local->gfid, local->loc.inode->gfid, 16);
-                dht_linkfile_create (frame, dht_rename_linkto_cbk, this,
-                                     src_cached, dst_hashed, &local->loc);
-        } else if (src_cached != dst_hashed) {
-                dict_t *xattr_new = NULL;
-
-                xattr_new = dict_copy_with_ref (xattr, NULL);
-
-                gf_msg_trace (this->name, 0,
-                              "link %s => %s (%s)", local->loc.path,
-                              local->loc2.path, src_cached->name);
-                if (gf_uuid_compare (local->loc.pargfid,
-                                  local->loc2.pargfid) == 0) {
-                        DHT_MARKER_DONT_ACCOUNT(xattr_new);
-                }
+        local->added_link = _gf_true;
 
-                local->added_link = _gf_true;
+        STACK_WIND_COOKIE(frame, dht_rename_link_cbk, src_cached, src_cached,
+                          src_cached->fops->link, &local->loc, &local->loc2,
+                          xattr_new);
 
-                STACK_WIND_COOKIE (frame, dht_rename_link_cbk, src_cached,
-                                   src_cached, src_cached->fops->link,
-                                   &local->loc, &local->loc2, xattr_new);
-
-                dict_unref (xattr_new);
-        }
+        dict_unref(xattr_new);
+    }
 
 nolinks:
-        if (!call_cnt) {
-                /* skip to next step */
-                dht_do_rename (frame);
-        }
-        if (xattr)
-                dict_unref (xattr);
-
-        return 0;
+    if (!call_cnt) {
+        /* skip to next step */
+        dht_do_rename(frame);
+    }
+    if (xattr)
+        dict_unref(xattr);
+
+    return 0;
 }
 
 int
-dht_rename_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int op_ret, int op_errno,
-                       inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                       struct iatt *postparent)
+dht_rename_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int op_ret, int op_errno, inode_t *inode,
+                      struct iatt *stbuf, dict_t *xattr,
+                      struct iatt *postparent)
 {
-        dht_local_t *local                              = NULL;
-        int          call_cnt                           = 0;
-        dht_conf_t  *conf                               = NULL;
-        char         gfid_local[GF_UUID_BUF_SIZE]       = {0};
-        char         gfid_server[GF_UUID_BUF_SIZE]      = {0};
-        int          child_index                        = -1;
-        gf_boolean_t is_src                             = _gf_false;
-        loc_t       *loc                                = NULL;
-
-
-        child_index = (long)cookie;
-
-        local = frame->local;
-        conf = this->private;
-
-        is_src = (child_index == 0);
+    dht_local_t *local = NULL;
+    int call_cnt = 0;
+    dht_conf_t *conf = NULL;
+    char gfid_local[GF_UUID_BUF_SIZE] = {0};
+    char gfid_server[GF_UUID_BUF_SIZE] = {0};
+    int child_index = -1;
+    gf_boolean_t is_src = _gf_false;
+    loc_t *loc = NULL;
+
+    child_index = (long)cookie;
+
+    local = frame->local;
+    conf = this->private;
+
+    is_src = (child_index == 0);
+    if (is_src)
+        loc = &local->loc;
+    else
+        loc = &local->loc2;
+
+    if (op_ret >= 0) {
         if (is_src)
-                loc = &local->loc;
-        else
-                loc = &local->loc2;
-
-        if (op_ret >= 0) {
-                if (is_src)
-                        local->src_cached
-                                = dht_subvol_get_cached (this,
-                                                         local->loc.inode);
-                else {
-                        if (loc->inode)
-                                gf_uuid_unparse (loc->inode->gfid, gfid_local);
-
-                        gf_msg_debug (this->name, 0,
-                                      "dst_cached before lookup: %s, "
-                                      "(path:%s)(gfid:%s),",
-                                      local->loc2.path,
-                                      local->dst_cached
-                                      ? local->dst_cached->name :
-                                      NULL,
-                                      local->dst_cached ? gfid_local : NULL);
-
-                        local->dst_cached
-                                = dht_subvol_get_cached (this,
-                                                         local->loc2_copy.inode);
-
-                        gf_uuid_unparse (stbuf->ia_gfid, gfid_local);
-
-                        gf_msg_debug (this->name, GF_LOG_WARNING,
-                                      "dst_cached after lookup: %s, "
-                                      "(path:%s)(gfid:%s)",
-                                      local->loc2.path,
-                                      local->dst_cached
-                                      ? local->dst_cached->name :
-                                      NULL,
-                                      local->dst_cached ? gfid_local : NULL);
-
-
-                        if ((local->loc2.inode == NULL)
-                            || gf_uuid_compare (stbuf->ia_gfid,
-                                                local->loc2.inode->gfid)) {
-                                if (local->loc2.inode != NULL) {
-                                        inode_unlink (local->loc2.inode,
-                                                      local->loc2.parent,
-                                                      local->loc2.name);
-                                        inode_unref (local->loc2.inode);
-                                }
-
-                                local->loc2.inode
-                                        = inode_link (local->loc2_copy.inode,
-                                                      local->loc2_copy.parent,
-                                                      local->loc2_copy.name,
-                                                      stbuf);
-                                gf_uuid_copy (local->loc2.gfid,
-                                              stbuf->ia_gfid);
-                        }
+            local->src_cached = dht_subvol_get_cached(this, local->loc.inode);
+        else {
+            if (loc->inode)
+                gf_uuid_unparse(loc->inode->gfid, gfid_local);
+
+            gf_msg_debug(this->name, 0,
+                         "dst_cached before lookup: %s, "
+                         "(path:%s)(gfid:%s),",
+                         local->loc2.path,
+                         local->dst_cached ? local->dst_cached->name : NULL,
+                         local->dst_cached ? gfid_local : NULL);
+
+            local->dst_cached = dht_subvol_get_cached(this,
+                                                      local->loc2_copy.inode);
+
+            gf_uuid_unparse(stbuf->ia_gfid, gfid_local);
+
+            gf_msg_debug(this->name, GF_LOG_WARNING,
+                         "dst_cached after lookup: %s, "
+                         "(path:%s)(gfid:%s)",
+                         local->loc2.path,
+                         local->dst_cached ? local->dst_cached->name : NULL,
+                         local->dst_cached ? gfid_local : NULL);
+
+            if ((local->loc2.inode == NULL) ||
+                gf_uuid_compare(stbuf->ia_gfid, local->loc2.inode->gfid)) {
+                if (local->loc2.inode != NULL) {
+                    inode_unlink(local->loc2.inode, local->loc2.parent,
+                                 local->loc2.name);
+                    inode_unref(local->loc2.inode);
                 }
-        }
 
-        if (op_ret < 0) {
-                if (is_src) {
-                        /* The meaning of is_linkfile is overloaded here. For locking
-                         * to work properly both rebalance and rename should acquire
-                         * lock on datafile. The reason for sending this lookup is to
-                         * find out whether we've acquired a lock on data file.
-                         * Between the lookup before rename and this rename, the
-                         * file could be migrated by a rebalance process and now this
-                         * file this might be a linkto file. We verify that by sending
-                         * this lookup. However, if this lookup fails we cannot really
-                         * say whether we've acquired lock on a datafile or linkto file.
-                         * So, we act conservatively and _assume_
-                         * that this is a linkfile and fail the rename operation.
-                         */
-                        local->is_linkfile = _gf_true;
-                        local->op_errno = op_errno;
-                } else {
-                        if (local->dst_cached)
-                                gf_msg_debug (this->name, op_errno,
-                                              "file %s (gfid:%s) was present "
-                                              "(hashed-subvol=%s, "
-                                              "cached-subvol=%s) before rename,"
-                                              " but lookup failed",
-                                              local->loc2.path,
-                                              uuid_utoa (local->loc2.inode->gfid),
-                                              local->dst_hashed->name,
-                                              local->dst_cached->name);
-                        if (dht_inode_missing (op_errno))
-                                local->dst_cached = NULL;
-                }
-        } else if (is_src && xattr && check_is_linkfile (inode, stbuf, xattr,
-                                               conf->link_xattr_name)) {
-                local->is_linkfile = _gf_true;
-                /* Found linkto file instead of data file, passdown ENOENT
-                 * based on the above comment */
-                local->op_errno = ENOENT;
-        }
-
-        if (!local->is_linkfile && (op_ret >= 0) &&
-            gf_uuid_compare (loc->gfid, stbuf->ia_gfid)) {
-                gf_uuid_unparse (loc->gfid, gfid_local);
-                gf_uuid_unparse (stbuf->ia_gfid, gfid_server);
-
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_GFID_MISMATCH,
-                        "path:%s, received a different gfid, local_gfid= %s"
-                        " server_gfid: %s",
-                        local->loc.path, gfid_local, gfid_server);
-
-                /* Will passdown ENOENT anyway since the file we sent on
-                 * rename is replaced with a different file */
-                local->op_errno = ENOENT;
-                /* Since local->is_linkfile is used here to detect failure,
-                 * marking this to true */
-                local->is_linkfile = _gf_true;
-        }
-
-        call_cnt = dht_frame_return (frame);
-        if (is_last_call (call_cnt)) {
-                if (local->is_linkfile) {
-                        local->op_ret = -1;
-                        goto fail;
-                }
-
-                dht_rename_create_links (frame);
-        }
-
-        return 0;
+                local->loc2.inode = inode_link(local->loc2_copy.inode,
+                                               local->loc2_copy.parent,
+                                               local->loc2_copy.name, stbuf);
+                gf_uuid_copy(local->loc2.gfid, stbuf->ia_gfid);
+            }
+        }
+    }
+
+    if (op_ret < 0) {
+        if (is_src) {
+            /* The meaning of is_linkfile is overloaded here. For locking
+             * to work properly both rebalance and rename should acquire
+             * lock on datafile. The reason for sending this lookup is to
+             * find out whether we've acquired a lock on data file.
+             * Between the lookup before rename and this rename, the
+             * file could be migrated by a rebalance process and now this
+             * file this might be a linkto file. We verify that by sending
+             * this lookup. However, if this lookup fails we cannot really
+             * say whether we've acquired lock on a datafile or linkto file.
+             * So, we act conservatively and _assume_
+             * that this is a linkfile and fail the rename operation.
+             */
+            local->is_linkfile = _gf_true;
+            local->op_errno = op_errno;
+        } else {
+            if (local->dst_cached)
+                gf_msg_debug(this->name, op_errno,
+                             "file %s (gfid:%s) was present "
+                             "(hashed-subvol=%s, "
+                             "cached-subvol=%s) before rename,"
+                             " but lookup failed",
+                             local->loc2.path,
+                             uuid_utoa(local->loc2.inode->gfid),
+                             local->dst_hashed->name, local->dst_cached->name);
+            if (dht_inode_missing(op_errno))
+                local->dst_cached = NULL;
+        }
+    } else if (is_src && xattr &&
+               check_is_linkfile(inode, stbuf, xattr, conf->link_xattr_name)) {
+        local->is_linkfile = _gf_true;
+        /* Found linkto file instead of data file, passdown ENOENT
+         * based on the above comment */
+        local->op_errno = ENOENT;
+    }
+
+    if (!local->is_linkfile && (op_ret >= 0) &&
+        gf_uuid_compare(loc->gfid, stbuf->ia_gfid)) {
+        gf_uuid_unparse(loc->gfid, gfid_local);
+        gf_uuid_unparse(stbuf->ia_gfid, gfid_server);
+
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_GFID_MISMATCH,
+               "path:%s, received a different gfid, local_gfid= %s"
+               " server_gfid: %s",
+               local->loc.path, gfid_local, gfid_server);
+
+        /* Will passdown ENOENT anyway since the file we sent on
+         * rename is replaced with a different file */
+        local->op_errno = ENOENT;
+        /* Since local->is_linkfile is used here to detect failure,
+         * marking this to true */
+        local->is_linkfile = _gf_true;
+    }
+
+    call_cnt = dht_frame_return(frame);
+    if (is_last_call(call_cnt)) {
+        if (local->is_linkfile) {
+            local->op_ret = -1;
+            goto fail;
+        }
+
+        dht_rename_create_links(frame);
+    }
+
+    return 0;
 fail:
-        dht_rename_unlock (frame, this);
-        return 0;
+    dht_rename_unlock(frame, this);
+    return 0;
 }
 
 int
-dht_rename_file_lock1_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_rename_file_lock1_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                      = NULL;
-        char         src_gfid[GF_UUID_BUF_SIZE] = {0};
-        char         dst_gfid[GF_UUID_BUF_SIZE] = {0};
-        int          ret                        = 0;
-        loc_t       *loc                        = NULL;
-        xlator_t    *subvol                     = NULL;
-
-        local = frame->local;
-
-        if (op_ret < 0) {
-                uuid_utoa_r (local->loc.inode->gfid, src_gfid);
-
-                if (local->loc2.inode)
-                        uuid_utoa_r (local->loc2.inode->gfid, dst_gfid);
-
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_INODE_LK_ERROR,
-                        "protecting namespace of %s failed"
-                        "rename (%s:%s:%s %s:%s:%s)",
-                        local->current == &local->lock[0] ? local->loc.path
-                        : local->loc2.path,
-                        local->loc.path, src_gfid, local->src_hashed->name,
-                        local->loc2.path, dst_gfid,
-                        local->dst_hashed ? local->dst_hashed->name : NULL);
-
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-                goto err;
-        }
-
-        if (local->current == &local->lock[0]) {
-                loc = &local->loc2;
-                subvol = local->dst_hashed;
-                local->current = &local->lock[1];
-        } else {
-                loc = &local->loc;
-                subvol = local->src_hashed;
-                local->current = &local->lock[0];
-        }
-
-        ret = dht_protect_namespace (frame, loc, subvol, &local->current->ns,
-                                     dht_rename_lock_cbk);
-        if (ret < 0) {
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        return 0;
+    dht_local_t *local = NULL;
+    char src_gfid[GF_UUID_BUF_SIZE] = {0};
+    char dst_gfid[GF_UUID_BUF_SIZE] = {0};
+    int ret = 0;
+    loc_t *loc = NULL;
+    xlator_t *subvol = NULL;
+
+    local = frame->local;
+
+    if (op_ret < 0) {
+        uuid_utoa_r(local->loc.inode->gfid, src_gfid);
+
+        if (local->loc2.inode)
+            uuid_utoa_r(local->loc2.inode->gfid, dst_gfid);
+
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_INODE_LK_ERROR,
+               "protecting namespace of %s failed"
+               "rename (%s:%s:%s %s:%s:%s)",
+               local->current == &local->lock[0] ? local->loc.path
+                                                 : local->loc2.path,
+               local->loc.path, src_gfid, local->src_hashed->name,
+               local->loc2.path, dst_gfid,
+               local->dst_hashed ? local->dst_hashed->name : NULL);
+
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+        goto err;
+    }
+
+    if (local->current == &local->lock[0]) {
+        loc = &local->loc2;
+        subvol = local->dst_hashed;
+        local->current = &local->lock[1];
+    } else {
+        loc = &local->loc;
+        subvol = local->src_hashed;
+        local->current = &local->lock[0];
+    }
+
+    ret = dht_protect_namespace(frame, loc, subvol, &local->current->ns,
+                                dht_rename_lock_cbk);
+    if (ret < 0) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    return 0;
 err:
-        /* No harm in calling an extra unlock */
-        dht_rename_unlock (frame, this);
-        return 0;
+    /* No harm in calling an extra unlock */
+    dht_rename_unlock(frame, this);
+    return 0;
 }
 
 int32_t
-dht_rename_file_protect_namespace (call_frame_t *frame, void *cookie,
-                                   xlator_t *this, int32_t op_ret,
-                                   int32_t op_errno, dict_t *xdata)
+dht_rename_file_protect_namespace(call_frame_t *frame, void *cookie,
+                                  xlator_t *this, int32_t op_ret,
+                                  int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t  *local                     = NULL;
-        char         src_gfid[GF_UUID_BUF_SIZE] = {0};
-        char         dst_gfid[GF_UUID_BUF_SIZE] = {0};
-        int          ret                        = 0;
-        loc_t       *loc                        = NULL;
-        xlator_t    *subvol                     = NULL;
+    dht_local_t *local = NULL;
+    char src_gfid[GF_UUID_BUF_SIZE] = {0};
+    char dst_gfid[GF_UUID_BUF_SIZE] = {0};
+    int ret = 0;
+    loc_t *loc = NULL;
+    xlator_t *subvol = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (op_ret < 0) {
-                uuid_utoa_r (local->loc.inode->gfid, src_gfid);
+    if (op_ret < 0) {
+        uuid_utoa_r(local->loc.inode->gfid, src_gfid);
 
-                if (local->loc2.inode)
-                        uuid_utoa_r (local->loc2.inode->gfid, dst_gfid);
+        if (local->loc2.inode)
+            uuid_utoa_r(local->loc2.inode->gfid, dst_gfid);
 
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_INODE_LK_ERROR,
-                        "acquiring inodelk failed "
-                        "rename (%s:%s:%s %s:%s:%s)",
-                        local->loc.path, src_gfid, local->src_cached->name,
-                        local->loc2.path, dst_gfid,
-                        local->dst_cached ? local->dst_cached->name : NULL);
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_INODE_LK_ERROR,
+               "acquiring inodelk failed "
+               "rename (%s:%s:%s %s:%s:%s)",
+               local->loc.path, src_gfid, local->src_cached->name,
+               local->loc2.path, dst_gfid,
+               local->dst_cached ? local->dst_cached->name : NULL);
 
-                local->op_ret = -1;
-                local->op_errno = op_errno;
+        local->op_ret = -1;
+        local->op_errno = op_errno;
 
-                goto err;
-        }
+        goto err;
+    }
 
-        /* Locks on src and dst needs to ordered which otherwise might cause
-         * deadlocks when rename (src, dst) and rename (dst, src) is done from
-         * two different clients
-         */
-        dht_order_rename_lock (frame, &loc, &subvol);
+    /* Locks on src and dst needs to ordered which otherwise might cause
+     * deadlocks when rename (src, dst) and rename (dst, src) is done from
+     * two different clients
+     */
+    dht_order_rename_lock(frame, &loc, &subvol);
 
-        ret = dht_protect_namespace (frame, loc, subvol,
-                                     &local->current->ns,
-                                     dht_rename_file_lock1_cbk);
-        if (ret < 0) {
-                op_errno = EINVAL;
-                goto err;
-        }
+    ret = dht_protect_namespace(frame, loc, subvol, &local->current->ns,
+                                dht_rename_file_lock1_cbk);
+    if (ret < 0) {
+        op_errno = EINVAL;
+        goto err;
+    }
 
-        return 0;
+    return 0;
 
 err:
-        /* Its fine to call unlock even when no locks are acquired, as we check
-         * for lock->locked before winding a unlock call.
-         */
-        dht_rename_unlock (frame, this);
+    /* Its fine to call unlock even when no locks are acquired, as we check
+     * for lock->locked before winding a unlock call.
+     */
+    dht_rename_unlock(frame, this);
 
-        return 0;
+    return 0;
 }
 
 int32_t
-dht_rename_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                     int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_rename_lock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t *local                      = NULL;
-        char         src_gfid[GF_UUID_BUF_SIZE] = {0};
-        char         dst_gfid[GF_UUID_BUF_SIZE] = {0};
-        dict_t      *xattr_req                  = NULL;
-        dht_conf_t  *conf                       = NULL;
-        int          i                          = 0;
-        xlator_t    *subvol                     = NULL;
-        dht_lock_t  *lock                       = NULL;
-
-        local = frame->local;
-        conf = this->private;
-
-        if (op_ret < 0) {
-                uuid_utoa_r (local->loc.inode->gfid, src_gfid);
-
-                if (local->loc2.inode)
-                        uuid_utoa_r (local->loc2.inode->gfid, dst_gfid);
-
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_INODE_LK_ERROR,
-                        "protecting namespace of %s failed. "
-                        "rename (%s:%s:%s %s:%s:%s)",
-                        local->current == &local->lock[0] ? local->loc.path
-                        : local->loc2.path,
-                        local->loc.path, src_gfid, local->src_hashed->name,
-                        local->loc2.path, dst_gfid,
-                        local->dst_hashed ? local->dst_hashed->name : NULL);
-
-                local->op_ret = -1;
-                local->op_errno = op_errno;
-
-                goto done;
+    dht_local_t *local = NULL;
+    char src_gfid[GF_UUID_BUF_SIZE] = {0};
+    char dst_gfid[GF_UUID_BUF_SIZE] = {0};
+    dict_t *xattr_req = NULL;
+    dht_conf_t *conf = NULL;
+    int i = 0;
+    xlator_t *subvol = NULL;
+    dht_lock_t *lock = NULL;
+
+    local = frame->local;
+    conf = this->private;
+
+    if (op_ret < 0) {
+        uuid_utoa_r(local->loc.inode->gfid, src_gfid);
+
+        if (local->loc2.inode)
+            uuid_utoa_r(local->loc2.inode->gfid, dst_gfid);
+
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_INODE_LK_ERROR,
+               "protecting namespace of %s failed. "
+               "rename (%s:%s:%s %s:%s:%s)",
+               local->current == &local->lock[0] ? local->loc.path
+                                                 : local->loc2.path,
+               local->loc.path, src_gfid, local->src_hashed->name,
+               local->loc2.path, dst_gfid,
+               local->dst_hashed ? local->dst_hashed->name : NULL);
+
+        local->op_ret = -1;
+        local->op_errno = op_errno;
+
+        goto done;
+    }
+
+    xattr_req = dict_new();
+    if (xattr_req == NULL) {
+        local->op_ret = -1;
+        local->op_errno = ENOMEM;
+        goto done;
+    }
+
+    op_ret = dict_set_uint32(xattr_req, conf->link_xattr_name, 256);
+    if (op_ret < 0) {
+        local->op_ret = -1;
+        local->op_errno = -op_ret;
+        goto done;
+    }
+
+    /* dst_cached might've changed. This normally happens for two reasons:
+     * 1. rebalance migrated dst
+     * 2. Another parallel rename was done overwriting dst
+     *
+     * Doing a lookup on local->loc2 when dst exists, but is associated
+     * with a different gfid will result in an ESTALE error. So, do a fresh
+     * lookup with a new inode on dst-path and handle change of dst-cached
+     * in the cbk. Also, to identify dst-cached changes we do a lookup on
+     * "this" rather than the subvol.
+     */
+    loc_copy(&local->loc2_copy, &local->loc2);
+    inode_unref(local->loc2_copy.inode);
+    local->loc2_copy.inode = inode_new(local->loc.inode->table);
+
+    /* Why not use local->lock.locks[?].loc for lookup post lock phase
+     * ---------------------------------------------------------------
+     * "layout.parent_layout.locks[?].loc" does not have the name and pargfid
+     * populated.
+     * Reason: If we had populated the name and pargfid, server might
+     * resolve to a successful lookup even if there is a file with same name
+     * with a different gfid(unlink & create) as server does name based
+     * resolution on first priority. And this can result in operating on a
+     * different inode entirely.
+     *
+     * Now consider a scenario where source file was renamed by some other
+     * client to a new name just before this lock was granted. So if a
+     * lookup would be done on local->lock[0].layout.parent_layout.locks[?].loc,
+     * server will send success even if the entry was renamed (since server will
+     * do a gfid based resolution). So once a lock is granted, make sure the
+     * file exists with the name that the client requested with.
+     * */
+
+    local->call_cnt = 2;
+    for (i = 0; i < 2; i++) {
+        if (i == 0) {
+            lock = local->rename_inodelk_backward_compatible[0];
+            if (gf_uuid_compare(local->loc.gfid, lock->loc.gfid) == 0)
+                subvol = lock->xl;
+            else {
+                lock = local->rename_inodelk_backward_compatible[1];
+                subvol = lock->xl;
+            }
+        } else {
+            subvol = this;
         }
 
-        xattr_req = dict_new ();
-        if (xattr_req == NULL) {
-                local->op_ret = -1;
-                local->op_errno = ENOMEM;
-                goto done;
-        }
+        STACK_WIND_COOKIE(frame, dht_rename_lookup_cbk, (void *)(long)i, subvol,
+                          subvol->fops->lookup,
+                          (i == 0) ? &local->loc : &local->loc2_copy,
+                          xattr_req);
+    }
 
-        op_ret = dict_set_uint32 (xattr_req,
-                                  conf->link_xattr_name, 256);
-        if (op_ret < 0) {
-                local->op_ret = -1;
-                local->op_errno = -op_ret;
-                goto done;
-        }
-
-        /* dst_cached might've changed. This normally happens for two reasons:
-         * 1. rebalance migrated dst
-         * 2. Another parallel rename was done overwriting dst
-         *
-         * Doing a lookup on local->loc2 when dst exists, but is associated
-         * with a different gfid will result in an ESTALE error. So, do a fresh
-         * lookup with a new inode on dst-path and handle change of dst-cached
-         * in the cbk. Also, to identify dst-cached changes we do a lookup on
-         * "this" rather than the subvol.
-         */
-        loc_copy (&local->loc2_copy, &local->loc2);
-        inode_unref (local->loc2_copy.inode);
-        local->loc2_copy.inode = inode_new (local->loc.inode->table);
-
-        /* Why not use local->lock.locks[?].loc for lookup post lock phase
-         * ---------------------------------------------------------------
-         * "layout.parent_layout.locks[?].loc" does not have the name and pargfid
-         * populated.
-         * Reason: If we had populated the name and pargfid, server might
-         * resolve to a successful lookup even if there is a file with same name
-         * with a different gfid(unlink & create) as server does name based
-         * resolution on first priority. And this can result in operating on a
-         * different inode entirely.
-         *
-         * Now consider a scenario where source file was renamed by some other
-         * client to a new name just before this lock was granted. So if a
-         * lookup would be done on local->lock[0].layout.parent_layout.locks[?].loc,
-         * server will send success even if the entry was renamed (since server will
-         * do a gfid based resolution). So once a lock is granted, make sure the file
-         * exists with the name that the client requested with.
-         * */
-
-        local->call_cnt = 2;
-        for (i = 0; i < 2; i++) {
-                if (i == 0) {
-                        lock = local->rename_inodelk_backward_compatible[0];
-                        if (gf_uuid_compare (local->loc.gfid,
-                                             lock->loc.gfid) == 0)
-                                subvol = lock->xl;
-                        else {
-                                lock = local->rename_inodelk_backward_compatible[1];
-                                subvol = lock->xl;
-                        }
-                } else {
-                        subvol = this;
-                }
-
-                STACK_WIND_COOKIE (frame, dht_rename_lookup_cbk,
-                                   (void *)(long)i, subvol,
-                                   subvol->fops->lookup,
-                                   (i == 0) ? &local->loc : &local->loc2_copy,
-                                   xattr_req);
-        }
-
-        dict_unref (xattr_req);
-        return 0;
+    dict_unref(xattr_req);
+    return 0;
 
 done:
-        /* Its fine to call unlock even when no locks are acquired, as we check
-         * for lock->locked before winding a unlock call.
-         */
-        dht_rename_unlock (frame, this);
+    /* Its fine to call unlock even when no locks are acquired, as we check
+     * for lock->locked before winding a unlock call.
+     */
+    dht_rename_unlock(frame, this);
 
-        if (xattr_req)
-                dict_unref (xattr_req);
+    if (xattr_req)
+        dict_unref(xattr_req);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_rename_lock (call_frame_t *frame)
+dht_rename_lock(call_frame_t *frame)
 {
-        dht_local_t  *local    = NULL;
-        int           count    = 1, ret = -1;
-        dht_lock_t  **lk_array = NULL;
-
-        local = frame->local;
-
-        if (local->dst_cached)
-                count++;
-
-        lk_array = GF_CALLOC (count, sizeof (*lk_array),
-                              gf_common_mt_pointer);
-        if (lk_array == NULL)
-                goto err;
-
-        lk_array[0] = dht_lock_new (frame->this, local->src_cached, &local->loc,
-                                    F_WRLCK, DHT_FILE_MIGRATE_DOMAIN, NULL,
-                                    FAIL_ON_ANY_ERROR);
-        if (lk_array[0] == NULL)
-                goto err;
-
-        if (local->dst_cached) {
-                /* dst might be removed by the time inodelk reaches bricks,
-                 * which can result in ESTALE errors. POSIX imposes no
-                 * restriction for dst to be present for renames to be
-                 * successful. So, we'll ignore ESTALE errors. As far as
-                 * synchronization on dst goes, we'll achieve the same by
-                 * holding entrylk on parent directory of dst in the namespace
-                 * of basename(dst). Also, there might not be quorum in cluster
-                 * xlators like EC/disperse on errno, in which case they return
-                 * EIO. For eg., in a disperse (4 + 2), 3 might return success
-                 * and three might return ESTALE. Disperse, having no Quorum
-                 * unwinds inodelk with EIO. So, ignore EIO too.
-                 */
-                lk_array[1] = dht_lock_new (frame->this, local->dst_cached,
-                                            &local->loc2, F_WRLCK,
-                                            DHT_FILE_MIGRATE_DOMAIN, NULL,
-                                            IGNORE_ENOENT_ESTALE_EIO);
-                if (lk_array[1] == NULL)
-                        goto err;
-        }
-
-        local->rename_inodelk_backward_compatible = lk_array;
-        local->rename_inodelk_bc_count = count;
-
-        /* retaining inodelks for the sake of backward compatibility. Please
-         * make sure to remove this inodelk once all of 3.10, 3.12 and 3.13
-         * reach EOL. Better way of getting synchronization would be to acquire
-         * entrylks on src and dst parent directories in the namespace of
-         * basenames of src and dst
+    dht_local_t *local = NULL;
+    int count = 1, ret = -1;
+    dht_lock_t **lk_array = NULL;
+
+    local = frame->local;
+
+    if (local->dst_cached)
+        count++;
+
+    lk_array = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_pointer);
+    if (lk_array == NULL)
+        goto err;
+
+    lk_array[0] = dht_lock_new(frame->this, local->src_cached, &local->loc,
+                               F_WRLCK, DHT_FILE_MIGRATE_DOMAIN, NULL,
+                               FAIL_ON_ANY_ERROR);
+    if (lk_array[0] == NULL)
+        goto err;
+
+    if (local->dst_cached) {
+        /* dst might be removed by the time inodelk reaches bricks,
+         * which can result in ESTALE errors. POSIX imposes no
+         * restriction for dst to be present for renames to be
+         * successful. So, we'll ignore ESTALE errors. As far as
+         * synchronization on dst goes, we'll achieve the same by
+         * holding entrylk on parent directory of dst in the namespace
+         * of basename(dst). Also, there might not be quorum in cluster
+         * xlators like EC/disperse on errno, in which case they return
+         * EIO. For eg., in a disperse (4 + 2), 3 might return success
+         * and three might return ESTALE. Disperse, having no Quorum
+         * unwinds inodelk with EIO. So, ignore EIO too.
          */
-        ret = dht_blocking_inodelk (frame, lk_array, count,
-                                    dht_rename_file_protect_namespace);
-        if (ret < 0) {
-                local->rename_inodelk_backward_compatible = NULL;
-                local->rename_inodelk_bc_count = 0;
-                goto err;
-        }
-
-        return 0;
+        lk_array[1] = dht_lock_new(frame->this, local->dst_cached, &local->loc2,
+                                   F_WRLCK, DHT_FILE_MIGRATE_DOMAIN, NULL,
+                                   IGNORE_ENOENT_ESTALE_EIO);
+        if (lk_array[1] == NULL)
+            goto err;
+    }
+
+    local->rename_inodelk_backward_compatible = lk_array;
+    local->rename_inodelk_bc_count = count;
+
+    /* retaining inodelks for the sake of backward compatibility. Please
+     * make sure to remove this inodelk once all of 3.10, 3.12 and 3.13
+     * reach EOL. Better way of getting synchronization would be to acquire
+     * entrylks on src and dst parent directories in the namespace of
+     * basenames of src and dst
+     */
+    ret = dht_blocking_inodelk(frame, lk_array, count,
+                               dht_rename_file_protect_namespace);
+    if (ret < 0) {
+        local->rename_inodelk_backward_compatible = NULL;
+        local->rename_inodelk_bc_count = 0;
+        goto err;
+    }
+
+    return 0;
 err:
-        if (lk_array != NULL) {
-                int tmp_count = 0, i = 0;
+    if (lk_array != NULL) {
+        int tmp_count = 0, i = 0;
 
-                for (i = 0; (i < count) && (lk_array[i]); i++, tmp_count++);
+        for (i = 0; (i < count) && (lk_array[i]); i++, tmp_count++)
+            ;
 
-                dht_lock_array_free (lk_array, tmp_count);
-                GF_FREE (lk_array);
-        }
+        dht_lock_array_free(lk_array, tmp_count);
+        GF_FREE(lk_array);
+    }
 
-        return -1;
+    return -1;
 }
 
 int
-dht_rename (call_frame_t *frame, xlator_t *this,
-            loc_t *oldloc, loc_t *newloc, dict_t *xdata)
+dht_rename(call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc,
+           dict_t *xdata)
 {
-        xlator_t    *src_cached             = NULL;
-        xlator_t    *src_hashed             = NULL;
-        xlator_t    *dst_cached             = NULL;
-        xlator_t    *dst_hashed             = NULL;
-        int          op_errno               = -1;
-        int          ret                    = -1;
-        dht_local_t *local                  = NULL;
-        dht_conf_t  *conf                   = NULL;
-        char         gfid[GF_UUID_BUF_SIZE] = {0};
-        char         newgfid[GF_UUID_BUF_SIZE] = {0};
-        gf_boolean_t free_xdata             = _gf_false;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (oldloc, err);
-        VALIDATE_OR_GOTO (newloc, err);
-
-        conf = this->private;
-
-        if (conf->subvolume_cnt == 1) {
-                if (!IA_ISDIR (oldloc->inode->ia_type)) {
-                        if (!xdata) {
-                                free_xdata = _gf_true;
-                        }
-                        DHT_CHANGELOG_TRACK_AS_RENAME(xdata, oldloc, newloc);
-                }
-                default_rename (frame, this, oldloc, newloc, xdata);
-                if (free_xdata && xdata) {
-                        dict_unref(xdata);
-                        xdata = NULL;
-                }
-                return 0;
-        }
-
-        gf_uuid_unparse(oldloc->inode->gfid, gfid);
-
-        src_hashed = dht_subvol_get_hashed (this, oldloc);
-        if (!src_hashed) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_RENAME_FAILED,
-                        "No hashed subvolume in layout for path=%s,"
-                        "(gfid = %s)", oldloc->path, gfid);
-                op_errno = EINVAL;
-                goto err;
+    xlator_t *src_cached = NULL;
+    xlator_t *src_hashed = NULL;
+    xlator_t *dst_cached = NULL;
+    xlator_t *dst_hashed = NULL;
+    int op_errno = -1;
+    int ret = -1;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    char newgfid[GF_UUID_BUF_SIZE] = {0};
+    gf_boolean_t free_xdata = _gf_false;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(oldloc, err);
+    VALIDATE_OR_GOTO(newloc, err);
+
+    conf = this->private;
+
+    if (conf->subvolume_cnt == 1) {
+        if (!IA_ISDIR(oldloc->inode->ia_type)) {
+            if (!xdata) {
+                free_xdata = _gf_true;
+            }
+            DHT_CHANGELOG_TRACK_AS_RENAME(xdata, oldloc, newloc);
+        }
+        default_rename(frame, this, oldloc, newloc, xdata);
+        if (free_xdata && xdata) {
+            dict_unref(xdata);
+            xdata = NULL;
         }
-
-        src_cached = dht_subvol_get_cached (this, oldloc->inode);
-        if (!src_cached) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_RENAME_FAILED,
-                        "No cached subvolume for path = %s,"
-                        "(gfid = %s)", oldloc->path, gfid);
-
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        dst_hashed = dht_subvol_get_hashed (this, newloc);
-        if (!dst_hashed) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_RENAME_FAILED,
-                        "No hashed subvolume in layout for path=%s",
-                        newloc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        if (newloc->inode)
-                dst_cached = dht_subvol_get_cached (this, newloc->inode);
-
-        local = dht_local_init (frame, oldloc, NULL, GF_FOP_RENAME);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-        /* cached_subvol will be set from dht_local_init, reset it to NULL,
-           as the logic of handling rename is different  */
-        local->cached_subvol = NULL;
-
-        ret = loc_copy (&local->loc2, newloc);
-        if (ret == -1) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        local->src_hashed = src_hashed;
-        local->src_cached = src_cached;
-        local->dst_hashed = dst_hashed;
-        local->dst_cached = dst_cached;
-        if (xdata)
-                local->xattr_req = dict_ref (xdata);
-
-        if (newloc->inode)
-                gf_uuid_unparse(newloc->inode->gfid, newgfid);
-
-        gf_msg (this->name, GF_LOG_INFO, 0,
-                DHT_MSG_RENAME_INFO,
-                "renaming %s (%s) (hash=%s/cache=%s) => %s (%s) "
-                "(hash=%s/cache=%s) ",
-                oldloc->path, gfid, src_hashed->name, src_cached->name,
-                newloc->path, newloc->inode ? newgfid : NULL, dst_hashed->name,
-                dst_cached ? dst_cached->name : "<nul>");
-
-        if (IA_ISDIR (oldloc->inode->ia_type)) {
-                dht_rename_dir (frame, this);
-        } else {
-                local->op_ret = 0;
-                ret = dht_rename_lock (frame);
-                if (ret < 0) {
-                        op_errno = ENOMEM;
-                        goto err;
-                }
+        return 0;
+    }
+
+    gf_uuid_unparse(oldloc->inode->gfid, gfid);
+
+    src_hashed = dht_subvol_get_hashed(this, oldloc);
+    if (!src_hashed) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_RENAME_FAILED,
+               "No hashed subvolume in layout for path=%s,"
+               "(gfid = %s)",
+               oldloc->path, gfid);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    src_cached = dht_subvol_get_cached(this, oldloc->inode);
+    if (!src_cached) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_RENAME_FAILED,
+               "No cached subvolume for path = %s,"
+               "(gfid = %s)",
+               oldloc->path, gfid);
+
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    dst_hashed = dht_subvol_get_hashed(this, newloc);
+    if (!dst_hashed) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_RENAME_FAILED,
+               "No hashed subvolume in layout for path=%s", newloc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (newloc->inode)
+        dst_cached = dht_subvol_get_cached(this, newloc->inode);
+
+    local = dht_local_init(frame, oldloc, NULL, GF_FOP_RENAME);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+    /* cached_subvol will be set from dht_local_init, reset it to NULL,
+       as the logic of handling rename is different  */
+    local->cached_subvol = NULL;
+
+    ret = loc_copy(&local->loc2, newloc);
+    if (ret == -1) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->src_hashed = src_hashed;
+    local->src_cached = src_cached;
+    local->dst_hashed = dst_hashed;
+    local->dst_cached = dst_cached;
+    if (xdata)
+        local->xattr_req = dict_ref(xdata);
+
+    if (newloc->inode)
+        gf_uuid_unparse(newloc->inode->gfid, newgfid);
+
+    gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_RENAME_INFO,
+           "renaming %s (%s) (hash=%s/cache=%s) => %s (%s) "
+           "(hash=%s/cache=%s) ",
+           oldloc->path, gfid, src_hashed->name, src_cached->name, newloc->path,
+           newloc->inode ? newgfid : NULL, dst_hashed->name,
+           dst_cached ? dst_cached->name : "<nul>");
+
+    if (IA_ISDIR(oldloc->inode->ia_type)) {
+        dht_rename_dir(frame, this);
+    } else {
+        local->op_ret = 0;
+        ret = dht_rename_lock(frame);
+        if (ret < 0) {
+            op_errno = ENOMEM;
+            goto err;
         }
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (rename, frame, -1, op_errno, NULL, NULL, NULL, NULL,
-                          NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(rename, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
 
-        return 0;
+    return 0;
 }
diff --git a/xlators/cluster/dht/src/dht-selfheal.c b/xlators/cluster/dht/src/dht-selfheal.c
index 5d5c8e86ddf..e17f96698bd 100644
--- a/xlators/cluster/dht/src/dht-selfheal.c
+++ b/xlators/cluster/dht/src/dht-selfheal.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "glusterfs.h"
 #include "xlator.h"
 #include "dht-common.h"
@@ -16,2736 +15,2640 @@
 #include "dht-lock.h"
 #include "glusterfs-acl.h"
 
-#define DHT_SET_LAYOUT_RANGE(layout,i,srt,chunk,path)    do {           \
-                layout->list[i].start = srt;                            \
-                layout->list[i].stop  = srt + chunk - 1;                \
-                layout->list[i].commit_hash = layout->commit_hash;      \
-                                                                        \
-                gf_msg_trace (this->name, 0,                            \
-                              "gave fix: %u - %u, with commit-hash %u"  \
-                              " on %s for %s",                          \
-                              layout->list[i].start,                    \
-                              layout->list[i].stop,                     \
-                              layout->list[i].commit_hash,              \
-                              layout->list[i].xlator->name, path);      \
-        } while (0)
-
-#define DHT_RESET_LAYOUT_RANGE(layout)    do {                          \
-                int cnt = 0;                                            \
-                for (cnt = 0; cnt < layout->cnt; cnt++ ) {              \
-                        layout->list[cnt].start = 0;                    \
-                        layout->list[cnt].stop  = 0;                    \
-                }                                                       \
-        } while (0)
+#define DHT_SET_LAYOUT_RANGE(layout, i, srt, chunk, path)                      \
+    do {                                                                       \
+        layout->list[i].start = srt;                                           \
+        layout->list[i].stop = srt + chunk - 1;                                \
+        layout->list[i].commit_hash = layout->commit_hash;                     \
+                                                                               \
+        gf_msg_trace(this->name, 0,                                            \
+                     "gave fix: %u - %u, with commit-hash %u"                  \
+                     " on %s for %s",                                          \
+                     layout->list[i].start, layout->list[i].stop,              \
+                     layout->list[i].commit_hash,                              \
+                     layout->list[i].xlator->name, path);                      \
+    } while (0)
+
+#define DHT_RESET_LAYOUT_RANGE(layout)                                         \
+    do {                                                                       \
+        int cnt = 0;                                                           \
+        for (cnt = 0; cnt < layout->cnt; cnt++) {                              \
+            layout->list[cnt].start = 0;                                       \
+            layout->list[cnt].stop = 0;                                        \
+        }                                                                      \
+    } while (0)
 
 int
-dht_selfheal_layout_lock (call_frame_t *frame, dht_layout_t *layout,
-                          gf_boolean_t newdir,
-                          dht_selfheal_layout_t healer,
-                          dht_need_heal_t should_heal);
+dht_selfheal_layout_lock(call_frame_t *frame, dht_layout_t *layout,
+                         gf_boolean_t newdir, dht_selfheal_layout_t healer,
+                         dht_need_heal_t should_heal);
 
 static uint32_t
-dht_overlap_calc (dht_layout_t *old, int o, dht_layout_t *new, int n)
+dht_overlap_calc(dht_layout_t *old, int o, dht_layout_t *new, int n)
 {
-	if (o >= old->cnt || n >= new->cnt)
-		return 0;
+    if (o >= old->cnt || n >= new->cnt)
+        return 0;
 
-	if (old->list[o].err > 0 || new->list[n].err > 0)
-		return 0;
+    if (old->list[o].err > 0 || new->list[n].err > 0)
+        return 0;
 
-        if (old->list[o].start == old->list[o].stop) {
-                return 0;
-        }
+    if (old->list[o].start == old->list[o].stop) {
+        return 0;
+    }
 
-        if (new->list[n].start == new->list[n].stop) {
-                return 0;
-        }
+    if (new->list[n].start == new->list[n].stop) {
+        return 0;
+    }
 
-	if ((old->list[o].start > new->list[n].stop) ||
-	    (old->list[o].stop < new->list[n].start))
-		return 0;
+    if ((old->list[o].start > new->list[n].stop) ||
+        (old->list[o].stop < new->list[n].start))
+        return 0;
 
-	return min (old->list[o].stop, new->list[n].stop) -
-	        max (old->list[o].start, new->list[n].start) + 1;
+    return min(old->list[o].stop, new->list[n].stop) -
+           max(old->list[o].start, new->list[n].start) + 1;
 }
 
 int
-dht_selfheal_unlock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_selfheal_unlock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        DHT_STACK_DESTROY (frame);
-        return 0;
+    DHT_STACK_DESTROY(frame);
+    return 0;
 }
 
 int
-dht_selfheal_dir_finish (call_frame_t *frame, xlator_t *this, int ret,
-                         int invoke_cbk)
+dht_selfheal_dir_finish(call_frame_t *frame, xlator_t *this, int ret,
+                        int invoke_cbk)
 {
-        dht_local_t  *local      = NULL, *lock_local = NULL;
-        call_frame_t *lock_frame = NULL;
-        int           lock_count = 0;
+    dht_local_t *local = NULL, *lock_local = NULL;
+    call_frame_t *lock_frame = NULL;
+    int lock_count = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        /* Unlock entrylk */
-        dht_unlock_entrylk_wrapper (frame, &local->lock[0].ns.directory_ns);
+    /* Unlock entrylk */
+    dht_unlock_entrylk_wrapper(frame, &local->lock[0].ns.directory_ns);
 
-        /* Unlock inodelk */
-        lock_count = dht_lock_count (local->lock[0].ns.parent_layout.locks,
-                                     local->lock[0].ns.parent_layout.lk_count);
-        if (lock_count == 0)
-                goto done;
+    /* Unlock inodelk */
+    lock_count = dht_lock_count(local->lock[0].ns.parent_layout.locks,
+                                local->lock[0].ns.parent_layout.lk_count);
+    if (lock_count == 0)
+        goto done;
 
-        lock_frame = copy_frame (frame);
-        if (lock_frame == NULL) {
-                goto done;
-        }
+    lock_frame = copy_frame(frame);
+    if (lock_frame == NULL) {
+        goto done;
+    }
 
-        lock_local = dht_local_init (lock_frame, &local->loc, NULL,
-                                     lock_frame->root->op);
-        if (lock_local == NULL) {
-                goto done;
-        }
+    lock_local = dht_local_init(lock_frame, &local->loc, NULL,
+                                lock_frame->root->op);
+    if (lock_local == NULL) {
+        goto done;
+    }
 
-        lock_local->lock[0].ns.parent_layout.locks = local->lock[0].ns.parent_layout.locks;
-        lock_local->lock[0].ns.parent_layout.lk_count = local->lock[0].ns.parent_layout.lk_count;
+    lock_local->lock[0].ns.parent_layout.locks = local->lock[0]
+                                                     .ns.parent_layout.locks;
+    lock_local->lock[0]
+        .ns.parent_layout.lk_count = local->lock[0].ns.parent_layout.lk_count;
 
-        local->lock[0].ns.parent_layout.locks = NULL;
-        local->lock[0].ns.parent_layout.lk_count = 0;
+    local->lock[0].ns.parent_layout.locks = NULL;
+    local->lock[0].ns.parent_layout.lk_count = 0;
 
-        dht_unlock_inodelk (lock_frame,
-                            lock_local->lock[0].ns.parent_layout.locks,
-                            lock_local->lock[0].ns.parent_layout.lk_count,
-                            dht_selfheal_unlock_cbk);
-        lock_frame = NULL;
+    dht_unlock_inodelk(lock_frame, lock_local->lock[0].ns.parent_layout.locks,
+                       lock_local->lock[0].ns.parent_layout.lk_count,
+                       dht_selfheal_unlock_cbk);
+    lock_frame = NULL;
 
 done:
-        if (invoke_cbk)
-                local->selfheal.dir_cbk (frame, NULL, frame->this, ret,
-                                         local->op_errno, NULL);
-        if (lock_frame != NULL) {
-                DHT_STACK_DESTROY (lock_frame);
-        }
+    if (invoke_cbk)
+        local->selfheal.dir_cbk(frame, NULL, frame->this, ret, local->op_errno,
+                                NULL);
+    if (lock_frame != NULL) {
+        DHT_STACK_DESTROY(lock_frame);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_refresh_layout_done (call_frame_t *frame)
+dht_refresh_layout_done(call_frame_t *frame)
 {
-        int                    ret         = -1;
-        dht_layout_t          *refreshed   = NULL, *heal = NULL;
-        dht_local_t           *local       = NULL;
-        dht_need_heal_t        should_heal = NULL;
-        dht_selfheal_layout_t  healer      = NULL;
+    int ret = -1;
+    dht_layout_t *refreshed = NULL, *heal = NULL;
+    dht_local_t *local = NULL;
+    dht_need_heal_t should_heal = NULL;
+    dht_selfheal_layout_t healer = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        refreshed = local->selfheal.refreshed_layout;
-        heal = local->selfheal.layout;
+    refreshed = local->selfheal.refreshed_layout;
+    heal = local->selfheal.layout;
 
-        healer = local->selfheal.healer;
-        should_heal = local->selfheal.should_heal;
+    healer = local->selfheal.healer;
+    should_heal = local->selfheal.should_heal;
 
-        ret = dht_layout_sort (refreshed);
-        if (ret == -1) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_LAYOUT_SORT_FAILED,
-                        "sorting the layout failed");
-                goto err;
-        }
+    ret = dht_layout_sort(refreshed);
+    if (ret == -1) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_SORT_FAILED,
+               "sorting the layout failed");
+        goto err;
+    }
 
-        if (should_heal (frame, &heal, &refreshed)) {
-                healer (frame, &local->loc, heal);
-        } else {
-                local->selfheal.layout = NULL;
-                local->selfheal.refreshed_layout = NULL;
-                local->selfheal.layout = refreshed;
+    if (should_heal(frame, &heal, &refreshed)) {
+        healer(frame, &local->loc, heal);
+    } else {
+        local->selfheal.layout = NULL;
+        local->selfheal.refreshed_layout = NULL;
+        local->selfheal.layout = refreshed;
 
-                dht_layout_unref (frame->this, heal);
+        dht_layout_unref(frame->this, heal);
 
-                dht_selfheal_dir_finish (frame, frame->this, 0, 1);
-        }
+        dht_selfheal_dir_finish(frame, frame->this, 0, 1);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        dht_selfheal_dir_finish (frame, frame->this, -1, 1);
-        return 0;
+    dht_selfheal_dir_finish(frame, frame->this, -1, 1);
+    return 0;
 }
 
 int
-dht_refresh_layout_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int op_ret, int op_errno, inode_t *inode,
-                        struct iatt *stbuf, dict_t *xattr,
-                        struct iatt *postparent)
+dht_refresh_layout_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int op_ret, int op_errno, inode_t *inode,
+                       struct iatt *stbuf, dict_t *xattr,
+                       struct iatt *postparent)
 {
-        dht_local_t  *local                     = NULL;
-        int           this_call_cnt             = 0;
-        xlator_t     *prev                      = NULL;
-        dht_layout_t *layout                    = NULL;
-        char          gfid[GF_UUID_BUF_SIZE]    = {0,};
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, err);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, err);
-        GF_VALIDATE_OR_GOTO ("dht", this->private, err);
-
-        local = frame->local;
-        prev  = cookie;
-
-        layout = local->selfheal.refreshed_layout;
-
-        LOCK (&frame->lock);
-        {
-                op_ret = dht_layout_merge (this, layout, prev,
-                                           op_ret, op_errno, xattr);
-
-                dht_iatt_merge (this, &local->stbuf, stbuf);
-
-                if (op_ret == -1) {
-                        gf_uuid_unparse (local->loc.gfid, gfid);
-                        local->op_errno = op_errno;
-                        gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                                DHT_MSG_FILE_LOOKUP_FAILED,
-                                "lookup of %s on %s returned error, gfid: %s",
-                                local->loc.path, prev->name, gfid);
-
-                        goto unlock;
-                }
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    xlator_t *prev = NULL;
+    dht_layout_t *layout = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {
+        0,
+    };
 
-                local->op_ret = 0;
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO("dht", this, err);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, err);
+    GF_VALIDATE_OR_GOTO("dht", this->private, err);
+
+    local = frame->local;
+    prev = cookie;
+
+    layout = local->selfheal.refreshed_layout;
+
+    LOCK(&frame->lock);
+    {
+        op_ret = dht_layout_merge(this, layout, prev, op_ret, op_errno, xattr);
+
+        dht_iatt_merge(this, &local->stbuf, stbuf);
+
+        if (op_ret == -1) {
+            gf_uuid_unparse(local->loc.gfid, gfid);
+            local->op_errno = op_errno;
+            gf_msg(this->name, GF_LOG_ERROR, op_errno,
+                   DHT_MSG_FILE_LOOKUP_FAILED,
+                   "lookup of %s on %s returned error, gfid: %s",
+                   local->loc.path, prev->name, gfid);
+
+            goto unlock;
         }
-unlock:
-        UNLOCK (&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
+        local->op_ret = 0;
+    }
+unlock:
+    UNLOCK(&frame->lock);
 
-        if (is_last_call (this_call_cnt)) {
-                if (local->op_ret == 0) {
-                        local->refresh_layout_done (frame);
-                } else {
-                        goto err;
-                }
+    this_call_cnt = dht_frame_return(frame);
 
+    if (is_last_call(this_call_cnt)) {
+        if (local->op_ret == 0) {
+            local->refresh_layout_done(frame);
+        } else {
+            goto err;
         }
+    }
 
-        return 0;
+    return 0;
 
 err:
-        if (local) {
-                local->refresh_layout_unlock (frame, this, -1, 1);
-        }
-        return 0;
+    if (local) {
+        local->refresh_layout_unlock(frame, this, -1, 1);
+    }
+    return 0;
 }
 
 int
-dht_refresh_layout (call_frame_t *frame)
+dht_refresh_layout(call_frame_t *frame)
 {
-        int          call_cnt                   = 0;
-        int          i                          = 0, ret = -1;
-        dht_conf_t  *conf                       = NULL;
-        dht_local_t *local                      = NULL;
-        xlator_t    *this                       = NULL;
-        char         gfid[GF_UUID_BUF_SIZE]     = {0,};
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, out);
-
-        this = frame->this;
-        conf = this->private;
-        local = frame->local;
-
-        call_cnt = conf->subvolume_cnt;
-        local->call_cnt = call_cnt;
-        local->op_ret = -1;
-
-        if (local->selfheal.refreshed_layout) {
-                dht_layout_unref (this, local->selfheal.refreshed_layout);
-                local->selfheal.refreshed_layout = NULL;
-        }
-
-        local->selfheal.refreshed_layout = dht_layout_new (this,
-                                                           conf->subvolume_cnt);
-        if (!local->selfheal.refreshed_layout) {
-                gf_uuid_unparse (local->loc.gfid, gfid);
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
-                        "mem allocation for layout failed, path:%s gfid:%s",
-                        local->loc.path, gfid);
-                goto out;
-        }
+    int call_cnt = 0;
+    int i = 0, ret = -1;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {
+        0,
+    };
+
+    GF_VALIDATE_OR_GOTO("dht", frame, out);
+    GF_VALIDATE_OR_GOTO("dht", frame->local, out);
+
+    this = frame->this;
+    conf = this->private;
+    local = frame->local;
+
+    call_cnt = conf->subvolume_cnt;
+    local->call_cnt = call_cnt;
+    local->op_ret = -1;
+
+    if (local->selfheal.refreshed_layout) {
+        dht_layout_unref(this, local->selfheal.refreshed_layout);
+        local->selfheal.refreshed_layout = NULL;
+    }
+
+    local->selfheal.refreshed_layout = dht_layout_new(this,
+                                                      conf->subvolume_cnt);
+    if (!local->selfheal.refreshed_layout) {
+        gf_uuid_unparse(local->loc.gfid, gfid);
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "mem allocation for layout failed, path:%s gfid:%s",
+               local->loc.path, gfid);
+        goto out;
+    }
 
-        if (local->xattr != NULL) {
-                dict_del (local->xattr, conf->xattr_name);
-        }
+    if (local->xattr != NULL) {
+        dict_del(local->xattr, conf->xattr_name);
+    }
 
+    if (local->xattr_req == NULL) {
+        gf_uuid_unparse(local->loc.gfid, gfid);
+        local->xattr_req = dict_new();
         if (local->xattr_req == NULL) {
-                gf_uuid_unparse (local->loc.gfid, gfid);
-                local->xattr_req = dict_new ();
-                if (local->xattr_req == NULL) {
-                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_NO_MEMORY,
-                                "dict mem allocation failed, path:%s gfid:%s",
-                                local->loc.path, gfid);
-                        goto out;
-                }
+            gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                   "dict mem allocation failed, path:%s gfid:%s",
+                   local->loc.path, gfid);
+            goto out;
         }
+    }
 
-        if (dict_get (local->xattr_req, conf->xattr_name) == 0) {
-                ret = dict_set_uint32 (local->xattr_req, conf->xattr_name,
-                                       4 * 4);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "%s: Failed to set dictionary value:key = %s",
-                                local->loc.path, conf->xattr_name);
-        }
+    if (dict_get(local->xattr_req, conf->xattr_name) == 0) {
+        ret = dict_set_uint32(local->xattr_req, conf->xattr_name, 4 * 4);
+        if (ret)
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                   "%s: Failed to set dictionary value:key = %s",
+                   local->loc.path, conf->xattr_name);
+    }
 
-        for (i = 0; i < call_cnt; i++) {
-                STACK_WIND_COOKIE (frame, dht_refresh_layout_cbk,
-                                   conf->subvolumes[i], conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->lookup,
-                                   &local->loc, local->xattr_req);
-        }
+    for (i = 0; i < call_cnt; i++) {
+        STACK_WIND_COOKIE(frame, dht_refresh_layout_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->lookup, &local->loc,
+                          local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 
 out:
-        if (local) {
-                local->refresh_layout_unlock (frame, this, -1, 1);
-        }
-        return 0;
+    if (local) {
+        local->refresh_layout_unlock(frame, this, -1, 1);
+    }
+    return 0;
 }
 
-
 int32_t
-dht_selfheal_layout_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                              int32_t op_ret, int32_t op_errno, dict_t *xdata)
+dht_selfheal_layout_lock_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                             int32_t op_ret, int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t     *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (!local) {
-                goto err;
-        }
+    if (!local) {
+        goto err;
+    }
 
-        if (op_ret < 0) {
-                local->op_errno = op_errno;
-                goto err;
-        }
+    if (op_ret < 0) {
+        local->op_errno = op_errno;
+        goto err;
+    }
 
-        local->refresh_layout_unlock = dht_selfheal_dir_finish;
-        local->refresh_layout_done = dht_refresh_layout_done;
+    local->refresh_layout_unlock = dht_selfheal_dir_finish;
+    local->refresh_layout_done = dht_refresh_layout_done;
 
-        dht_refresh_layout (frame);
-        return 0;
+    dht_refresh_layout(frame);
+    return 0;
 
 err:
-        dht_selfheal_dir_finish (frame, this, -1, 1);
-        return 0;
+    dht_selfheal_dir_finish(frame, this, -1, 1);
+    return 0;
 }
 
-
 gf_boolean_t
-dht_should_heal_layout (call_frame_t *frame, dht_layout_t **heal,
-                        dht_layout_t **ondisk)
+dht_should_heal_layout(call_frame_t *frame, dht_layout_t **heal,
+                       dht_layout_t **ondisk)
 {
-        gf_boolean_t  fixit = _gf_true;
-        dht_local_t  *local = NULL;
-        int           ret   = -1, heal_missing_dirs = 0;
-
-        local = frame->local;
-
-        if ((heal == NULL) || (*heal == NULL) || (ondisk == NULL)
-            || (*ondisk == NULL))
-                goto out;
-
-        ret = dht_layout_anomalies (frame->this, &local->loc, *ondisk,
-                                    &local->selfheal.hole_cnt,
-                                    &local->selfheal.overlaps_cnt,
-                                    &local->selfheal.missing_cnt,
-                                    &local->selfheal.down,
-                                    &local->selfheal.misc, NULL);
-
-        if (ret < 0)
-                goto out;
-
-        /* Directories might've been created as part of this self-heal. We've to
-         * sync non-layout xattrs and set range 0-0 on new directories
+    gf_boolean_t fixit = _gf_true;
+    dht_local_t *local = NULL;
+    int ret = -1, heal_missing_dirs = 0;
+
+    local = frame->local;
+
+    if ((heal == NULL) || (*heal == NULL) || (ondisk == NULL) ||
+        (*ondisk == NULL))
+        goto out;
+
+    ret = dht_layout_anomalies(
+        frame->this, &local->loc, *ondisk, &local->selfheal.hole_cnt,
+        &local->selfheal.overlaps_cnt, &local->selfheal.missing_cnt,
+        &local->selfheal.down, &local->selfheal.misc, NULL);
+
+    if (ret < 0)
+        goto out;
+
+    /* Directories might've been created as part of this self-heal. We've to
+     * sync non-layout xattrs and set range 0-0 on new directories
+     */
+    heal_missing_dirs = local->selfheal.force_mkdir
+                            ? local->selfheal.force_mkdir
+                            : dht_layout_missing_dirs(*heal);
+
+    if ((local->selfheal.hole_cnt == 0) &&
+        (local->selfheal.overlaps_cnt == 0) && heal_missing_dirs) {
+        dht_layout_t *tmp = NULL;
+
+        /* Just added a brick and need to set 0-0 range on this brick.
+         * But ondisk layout is well-formed. So, swap layouts "heal" and
+         * "ondisk". Now "ondisk" layout will be used for healing
+         * xattrs. If there are any non-participating subvols in
+         * "ondisk" layout, dht_selfheal_dir_xattr_persubvol will set
+         * 0-0 and non-layout xattrs. This way we won't end up in
+         * "corrupting" already set and well-formed "ondisk" layout.
          */
-        heal_missing_dirs = local->selfheal.force_mkdir
-                ? local->selfheal.force_mkdir : dht_layout_missing_dirs (*heal);
-
-        if ((local->selfheal.hole_cnt == 0)
-            && (local->selfheal.overlaps_cnt == 0) && heal_missing_dirs) {
-                dht_layout_t *tmp = NULL;
-
-                /* Just added a brick and need to set 0-0 range on this brick.
-                 * But ondisk layout is well-formed. So, swap layouts "heal" and
-                 * "ondisk". Now "ondisk" layout will be used for healing
-                 * xattrs. If there are any non-participating subvols in
-                 * "ondisk" layout, dht_selfheal_dir_xattr_persubvol will set
-                 * 0-0 and non-layout xattrs. This way we won't end up in
-                 * "corrupting" already set and well-formed "ondisk" layout.
-                 */
-                tmp = *heal;
-                *heal = *ondisk;
-                *ondisk = tmp;
-
-                /* Current selfheal code, heals non-layout xattrs only after
-                 * an add-brick. In fact non-layout xattrs are considered as
-                 * secondary citizens which are healed only if layout xattrs
-                 * need to be healed. This is wrong, since for eg., quota can be
-                 * set when layout is well-formed, but a node is down. Also,
-                 * just for healing non-layout xattrs, we don't need locking.
-                 * This issue is _NOT FIXED_ by this patch.
-                 */
-        }
+        tmp = *heal;
+        *heal = *ondisk;
+        *ondisk = tmp;
+
+        /* Current selfheal code, heals non-layout xattrs only after
+         * an add-brick. In fact non-layout xattrs are considered as
+         * secondary citizens which are healed only if layout xattrs
+         * need to be healed. This is wrong, since for eg., quota can be
+         * set when layout is well-formed, but a node is down. Also,
+         * just for healing non-layout xattrs, we don't need locking.
+         * This issue is _NOT FIXED_ by this patch.
+         */
+    }
 
-        fixit = (local->selfheal.hole_cnt || local->selfheal.overlaps_cnt
-                 || heal_missing_dirs);
+    fixit = (local->selfheal.hole_cnt || local->selfheal.overlaps_cnt ||
+             heal_missing_dirs);
 
 out:
-        return fixit;
+    return fixit;
 }
 
 int
-dht_layout_span (dht_layout_t *layout)
+dht_layout_span(dht_layout_t *layout)
 {
-        int i = 0, count = 0;
+    int i = 0, count = 0;
 
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].err)
-                        continue;
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].err)
+            continue;
 
-                if (layout->list[i].start != layout->list[i].stop)
-                        count++;
-        }
+        if (layout->list[i].start != layout->list[i].stop)
+            count++;
+    }
 
-        return count;
+    return count;
 }
 
 int
-dht_decommissioned_bricks_in_layout (xlator_t *this, dht_layout_t *layout)
+dht_decommissioned_bricks_in_layout(xlator_t *this, dht_layout_t *layout)
 {
-        dht_conf_t *conf  = NULL;
-        int         count = 0, i = 0, j = 0;
+    dht_conf_t *conf = NULL;
+    int count = 0, i = 0, j = 0;
 
-        if ((this == NULL) || (layout == NULL))
-                goto out;
+    if ((this == NULL) || (layout == NULL))
+        goto out;
 
-        conf = this->private;
+    conf = this->private;
 
-        for (i = 0; i < layout->cnt; i++) {
-                for (j = 0; j < conf->subvolume_cnt; j++) {
-                        if (conf->decommissioned_bricks[j] &&
-                            conf->decommissioned_bricks[j]
-                            == layout->list[i].xlator) {
-                                count++;
-                        }
-                }
+    for (i = 0; i < layout->cnt; i++) {
+        for (j = 0; j < conf->subvolume_cnt; j++) {
+            if (conf->decommissioned_bricks[j] &&
+                conf->decommissioned_bricks[j] == layout->list[i].xlator) {
+                count++;
+            }
         }
+    }
 
 out:
-        return count;
+    return count;
 }
 
 dht_distribution_type_t
-dht_distribution_type (xlator_t *this, dht_layout_t *layout)
+dht_distribution_type(xlator_t *this, dht_layout_t *layout)
 {
-        dht_distribution_type_t type        = GF_DHT_EQUAL_DISTRIBUTION;
-        int                     i           = 0;
-        uint32_t                start_range = 0, range = 0, diff = 0;
+    dht_distribution_type_t type = GF_DHT_EQUAL_DISTRIBUTION;
+    int i = 0;
+    uint32_t start_range = 0, range = 0, diff = 0;
 
-        if ((this == NULL) || (layout == NULL) || (layout->cnt < 1)) {
-                goto out;
-        }
+    if ((this == NULL) || (layout == NULL) || (layout->cnt < 1)) {
+        goto out;
+    }
 
-        for (i = 0; i < layout->cnt; i++) {
-                if (start_range == 0) {
-                        start_range = layout->list[i].stop
-                                - layout->list[i].start;
-                        continue;
-                }
+    for (i = 0; i < layout->cnt; i++) {
+        if (start_range == 0) {
+            start_range = layout->list[i].stop - layout->list[i].start;
+            continue;
+        }
 
-                range = layout->list[i].stop - layout->list[i].start;
-                diff = (range >= start_range)
-                        ? range - start_range
-                        : start_range - range;
+        range = layout->list[i].stop - layout->list[i].start;
+        diff = (range >= start_range) ? range - start_range
+                                      : start_range - range;
 
-                if ((range != 0) && (diff > layout->cnt)) {
-                        type = GF_DHT_WEIGHTED_DISTRIBUTION;
-                        break;
-                }
+        if ((range != 0) && (diff > layout->cnt)) {
+            type = GF_DHT_WEIGHTED_DISTRIBUTION;
+            break;
         }
+    }
 
 out:
-        return type;
+    return type;
 }
 
 gf_boolean_t
-dht_should_fix_layout (call_frame_t *frame, dht_layout_t **inmem,
-                       dht_layout_t **ondisk)
+dht_should_fix_layout(call_frame_t *frame, dht_layout_t **inmem,
+                      dht_layout_t **ondisk)
 {
-        gf_boolean_t             fixit                 = _gf_true;
-
-        dht_local_t             *local                 = NULL;
-        int                      layout_span           = 0;
-        int                      decommissioned_bricks = 0;
-        int                      ret                   = 0;
-        dht_conf_t              *conf                  = NULL;
-        dht_distribution_type_t  inmem_dist_type       = 0;
-        dht_distribution_type_t  ondisk_dist_type      = 0;
-
-        conf = frame->this->private;
-
-        local = frame->local;
-
-        if ((inmem == NULL) || (*inmem == NULL) || (ondisk == NULL)
-            || (*ondisk == NULL))
-                goto out;
-
-        ret = dht_layout_anomalies (frame->this, &local->loc, *ondisk,
-                                    &local->selfheal.hole_cnt,
-                                    &local->selfheal.overlaps_cnt, NULL,
-                                    &local->selfheal.down,
-                                    &local->selfheal.misc, NULL);
-        if (ret < 0) {
-                fixit = _gf_false;
-                goto out;
-        }
-
-        if (local->selfheal.down || local->selfheal.misc) {
-                fixit = _gf_false;
-                goto out;
-        }
-
-        if (local->selfheal.hole_cnt || local->selfheal.overlaps_cnt)
-                goto out;
-
-        /* If commit hashes are being updated, let it through */
-        if ((*inmem)->commit_hash != (*ondisk)->commit_hash)
-                goto out;
-
-        layout_span = dht_layout_span (*ondisk);
-
-        decommissioned_bricks
-                = dht_decommissioned_bricks_in_layout (frame->this,
-                                                       *ondisk);
-        inmem_dist_type = dht_distribution_type (frame->this, *inmem);
-        ondisk_dist_type = dht_distribution_type (frame->this, *ondisk);
-
-        if ((decommissioned_bricks == 0)
-            && (layout_span == (conf->subvolume_cnt
-                                - conf->decommission_subvols_cnt))
-            && (inmem_dist_type == ondisk_dist_type))
-                fixit = _gf_false;
+    gf_boolean_t fixit = _gf_true;
+
+    dht_local_t *local = NULL;
+    int layout_span = 0;
+    int decommissioned_bricks = 0;
+    int ret = 0;
+    dht_conf_t *conf = NULL;
+    dht_distribution_type_t inmem_dist_type = 0;
+    dht_distribution_type_t ondisk_dist_type = 0;
+
+    conf = frame->this->private;
+
+    local = frame->local;
+
+    if ((inmem == NULL) || (*inmem == NULL) || (ondisk == NULL) ||
+        (*ondisk == NULL))
+        goto out;
+
+    ret = dht_layout_anomalies(
+        frame->this, &local->loc, *ondisk, &local->selfheal.hole_cnt,
+        &local->selfheal.overlaps_cnt, NULL, &local->selfheal.down,
+        &local->selfheal.misc, NULL);
+    if (ret < 0) {
+        fixit = _gf_false;
+        goto out;
+    }
+
+    if (local->selfheal.down || local->selfheal.misc) {
+        fixit = _gf_false;
+        goto out;
+    }
+
+    if (local->selfheal.hole_cnt || local->selfheal.overlaps_cnt)
+        goto out;
+
+    /* If commit hashes are being updated, let it through */
+    if ((*inmem)->commit_hash != (*ondisk)->commit_hash)
+        goto out;
+
+    layout_span = dht_layout_span(*ondisk);
+
+    decommissioned_bricks = dht_decommissioned_bricks_in_layout(frame->this,
+                                                                *ondisk);
+    inmem_dist_type = dht_distribution_type(frame->this, *inmem);
+    ondisk_dist_type = dht_distribution_type(frame->this, *ondisk);
+
+    if ((decommissioned_bricks == 0) &&
+        (layout_span ==
+         (conf->subvolume_cnt - conf->decommission_subvols_cnt)) &&
+        (inmem_dist_type == ondisk_dist_type))
+        fixit = _gf_false;
 
 out:
 
-        return fixit;
+    return fixit;
 }
 
 int
-dht_selfheal_layout_lock (call_frame_t *frame, dht_layout_t *layout,
-                          gf_boolean_t newdir,
-                          dht_selfheal_layout_t healer,
-                          dht_need_heal_t should_heal)
+dht_selfheal_layout_lock(call_frame_t *frame, dht_layout_t *layout,
+                         gf_boolean_t newdir, dht_selfheal_layout_t healer,
+                         dht_need_heal_t should_heal)
 {
-        dht_local_t   *local    = NULL;
-        int            count    = 1, ret = -1, i = 0;
-        dht_lock_t   **lk_array = NULL;
-        dht_conf_t    *conf     = NULL;
-        dht_layout_t  *tmp      = NULL;
-        char           gfid[GF_UUID_BUF_SIZE] = {0};
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO (frame->this->name, frame->local, err);
-
-        local = frame->local;
-
-        conf = frame->this->private;
-
-        local->selfheal.healer = healer;
-        local->selfheal.should_heal = should_heal;
-
-        tmp = local->selfheal.layout;
-        local->selfheal.layout = dht_layout_ref (frame->this, layout);
-        dht_layout_unref (frame->this, tmp);
-
-        if (!newdir) {
-                count = conf->subvolume_cnt;
-
-                lk_array = GF_CALLOC (count, sizeof (*lk_array),
-                                      gf_common_mt_char);
-                if (lk_array == NULL) {
-                        gf_uuid_unparse (local->stbuf.ia_gfid, gfid);
-                        gf_msg ("dht", GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_NO_MEMORY, "mem allocation failed for "
-                                "lk_array, gfid:%s path: %s", gfid,
-                                local->loc.path);
-                        goto err;
-                }
+    dht_local_t *local = NULL;
+    int count = 1, ret = -1, i = 0;
+    dht_lock_t **lk_array = NULL;
+    dht_conf_t *conf = NULL;
+    dht_layout_t *tmp = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
 
-                for (i = 0; i < count; i++) {
-                        lk_array[i] = dht_lock_new (frame->this,
-                                                    conf->subvolumes[i],
-                                                    &local->loc, F_WRLCK,
-                                                    DHT_LAYOUT_HEAL_DOMAIN,
-                                                    NULL,
-                                                    FAIL_ON_ANY_ERROR);
-                        if (lk_array[i] == NULL) {
-                                gf_uuid_unparse (local->stbuf.ia_gfid, gfid);
-                                gf_msg (THIS->name, GF_LOG_ERROR, ENOMEM,
-                                        DHT_MSG_NO_MEMORY, "mem allocation "
-                                        "failed for lk_array, gfid:%s path:%s",
-                                        gfid, local->loc.path);
-                                goto err;
-                        }
-                }
-        } else {
-                count = 1;
-                lk_array = GF_CALLOC (count, sizeof (*lk_array),
-                                      gf_common_mt_char);
-                if (lk_array == NULL) {
-                        gf_uuid_unparse (local->stbuf.ia_gfid, gfid);
-                        gf_msg (THIS->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_NO_MEMORY, "mem allocation failed for "
-                                "lk_array, gfid:%s path:%s",
-                                gfid, local->loc.path);
-                        goto err;
-                }
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO(frame->this->name, frame->local, err);
 
-                lk_array[0] = dht_lock_new (frame->this, local->hashed_subvol,
-                                            &local->loc, F_WRLCK,
-                                            DHT_LAYOUT_HEAL_DOMAIN, NULL,
-                                            FAIL_ON_ANY_ERROR);
-                if (lk_array[0] == NULL) {
-                        gf_uuid_unparse (local->stbuf.ia_gfid, gfid);
-                        gf_msg (THIS->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_NO_MEMORY, "mem allocation failed for "
-                                "lk_array, gfid:%s path:%s", gfid,
-                                local->loc.path);
-                        goto err;
-                }
-        }
+    local = frame->local;
 
-        local->lock[0].layout.my_layout.locks = lk_array;
-        local->lock[0].layout.my_layout.lk_count = count;
+    conf = frame->this->private;
 
-        ret = dht_blocking_inodelk (frame, lk_array, count,
-                                    dht_selfheal_layout_lock_cbk);
-        if (ret < 0) {
-                local->lock[0].layout.my_layout.locks = NULL;
-                local->lock[0].layout.my_layout.lk_count = 0;
-                goto err;
+    local->selfheal.healer = healer;
+    local->selfheal.should_heal = should_heal;
+
+    tmp = local->selfheal.layout;
+    local->selfheal.layout = dht_layout_ref(frame->this, layout);
+    dht_layout_unref(frame->this, tmp);
+
+    if (!newdir) {
+        count = conf->subvolume_cnt;
+
+        lk_array = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_char);
+        if (lk_array == NULL) {
+            gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
+            gf_msg("dht", GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                   "mem allocation failed for "
+                   "lk_array, gfid:%s path: %s",
+                   gfid, local->loc.path);
+            goto err;
         }
 
-        return 0;
+        for (i = 0; i < count; i++) {
+            lk_array[i] = dht_lock_new(
+                frame->this, conf->subvolumes[i], &local->loc, F_WRLCK,
+                DHT_LAYOUT_HEAL_DOMAIN, NULL, FAIL_ON_ANY_ERROR);
+            if (lk_array[i] == NULL) {
+                gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
+                gf_msg(THIS->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                       "mem allocation "
+                       "failed for lk_array, gfid:%s path:%s",
+                       gfid, local->loc.path);
+                goto err;
+            }
+        }
+    } else {
+        count = 1;
+        lk_array = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_char);
+        if (lk_array == NULL) {
+            gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
+            gf_msg(THIS->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                   "mem allocation failed for "
+                   "lk_array, gfid:%s path:%s",
+                   gfid, local->loc.path);
+            goto err;
+        }
+
+        lk_array[0] = dht_lock_new(frame->this, local->hashed_subvol,
+                                   &local->loc, F_WRLCK, DHT_LAYOUT_HEAL_DOMAIN,
+                                   NULL, FAIL_ON_ANY_ERROR);
+        if (lk_array[0] == NULL) {
+            gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
+            gf_msg(THIS->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                   "mem allocation failed for "
+                   "lk_array, gfid:%s path:%s",
+                   gfid, local->loc.path);
+            goto err;
+        }
+    }
+
+    local->lock[0].layout.my_layout.locks = lk_array;
+    local->lock[0].layout.my_layout.lk_count = count;
+
+    ret = dht_blocking_inodelk(frame, lk_array, count,
+                               dht_selfheal_layout_lock_cbk);
+    if (ret < 0) {
+        local->lock[0].layout.my_layout.locks = NULL;
+        local->lock[0].layout.my_layout.lk_count = 0;
+        goto err;
+    }
+
+    return 0;
 err:
-        if (lk_array != NULL) {
-                dht_lock_array_free (lk_array, count);
-                GF_FREE (lk_array);
-        }
+    if (lk_array != NULL) {
+        dht_lock_array_free(lk_array, count);
+        GF_FREE(lk_array);
+    }
 
-        return -1;
+    return -1;
 }
 
 int
-dht_selfheal_dir_xattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                            int op_ret, int op_errno, dict_t *xdata)
+dht_selfheal_dir_xattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                           int op_ret, int op_errno, dict_t *xdata)
 {
-        dht_local_t  *local                     = NULL;
-        xlator_t     *subvol                    = NULL;
-        struct iatt  *stbuf                     = NULL;
-        int           i                         = 0;
-        int           ret                       = 0;
-        dht_layout_t *layout                    = NULL;
-        int           err                       = 0;
-        int           this_call_cnt             = 0;
-        char          gfid[GF_UUID_BUF_SIZE]    = {0};
-
-        local = frame->local;
-        layout = local->selfheal.layout;
-        subvol = cookie;
-
-        if (op_ret == 0) {
-                err = 0;
-        } else {
-                gf_uuid_unparse (local->loc.gfid, gfid);
-                gf_msg (this->name, GF_LOG_ERROR, op_errno,
-                        DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                        "layout setxattr failed on %s, path:%s gfid:%s",
-                        subvol->name, local->loc.path, gfid);
-                err = op_errno;
-        }
-
-        ret = dict_get_bin (xdata, DHT_IATT_IN_XDATA_KEY, (void **) &stbuf);
-        if (ret < 0) {
-                gf_uuid_unparse (local->loc.gfid, gfid);
-                gf_msg_debug (this->name, 0, "key = %s not present in dict"
-                              ", path:%s gfid:%s", DHT_IATT_IN_XDATA_KEY,
-                              local->loc.path, gfid);
-        }
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    struct iatt *stbuf = NULL;
+    int i = 0;
+    int ret = 0;
+    dht_layout_t *layout = NULL;
+    int err = 0;
+    int this_call_cnt = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+    layout = local->selfheal.layout;
+    subvol = cookie;
+
+    if (op_ret == 0) {
+        err = 0;
+    } else {
+        gf_uuid_unparse(local->loc.gfid, gfid);
+        gf_msg(this->name, GF_LOG_ERROR, op_errno,
+               DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+               "layout setxattr failed on %s, path:%s gfid:%s", subvol->name,
+               local->loc.path, gfid);
+        err = op_errno;
+    }
+
+    ret = dict_get_bin(xdata, DHT_IATT_IN_XDATA_KEY, (void **)&stbuf);
+    if (ret < 0) {
+        gf_uuid_unparse(local->loc.gfid, gfid);
+        gf_msg_debug(this->name, 0,
+                     "key = %s not present in dict"
+                     ", path:%s gfid:%s",
+                     DHT_IATT_IN_XDATA_KEY, local->loc.path, gfid);
+    }
 
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].xlator == subvol) {
-                        layout->list[i].err = err;
-                        break;
-                }
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].xlator == subvol) {
+            layout->list[i].err = err;
+            break;
         }
+    }
 
-        LOCK (&frame->lock);
-        {
-                dht_iatt_merge (this, &local->stbuf, stbuf);
-        }
-        UNLOCK (&frame->lock);
+    LOCK(&frame->lock);
+    {
+        dht_iatt_merge(this, &local->stbuf, stbuf);
+    }
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt)) {
-                dht_selfheal_dir_finish (frame, this, 0, 1);
-        }
+    if (is_last_call(this_call_cnt)) {
+        dht_selfheal_dir_finish(frame, this, 0, 1);
+    }
 
-        return 0;
+    return 0;
 }
 
 /* Code is required to set user xattr to local->xattr
-*/
+ */
 int
-dht_set_user_xattr (dict_t *dict, char *k, data_t *v, void *data)
+dht_set_user_xattr(dict_t *dict, char *k, data_t *v, void *data)
 {
-        dict_t          *set_xattr          = data;
-        int              ret                = -1;
+    dict_t *set_xattr = data;
+    int ret = -1;
 
-        ret = dict_set (set_xattr, k, v);
-        return ret;
+    ret = dict_set(set_xattr, k, v);
+    return ret;
 }
 
-
 int
-dht_selfheal_dir_xattr_persubvol (call_frame_t *frame, loc_t *loc,
-                                  dht_layout_t *layout, int i,
-                                  xlator_t *req_subvol)
+dht_selfheal_dir_xattr_persubvol(call_frame_t *frame, loc_t *loc,
+                                 dht_layout_t *layout, int i,
+                                 xlator_t *req_subvol)
 {
-        xlator_t          *subvol = NULL;
-        dict_t            *xattr = NULL;
-        dict_t            *xdata = NULL;
-        int                ret = 0;
-        xlator_t          *this = NULL;
-        int32_t           *disk_layout = NULL;
-        dht_local_t       *local = NULL;
-        dht_conf_t        *conf = NULL;
-        data_t            *data = NULL;
-        char              gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local = frame->local;
-        if (req_subvol)
-                subvol = req_subvol;
-        else
-                subvol = layout->list[i].xlator;
-        this = frame->this;
-
-        GF_VALIDATE_OR_GOTO ("", this, err);
-        GF_VALIDATE_OR_GOTO (this->name, layout, err);
-        GF_VALIDATE_OR_GOTO (this->name, local, err);
-        GF_VALIDATE_OR_GOTO (this->name, subvol, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        xattr = dict_new ();
-        if (!xattr) {
-                goto err;
-        }
-
-        xdata = dict_new ();
-        if (!xdata)
-                goto err;
-
-        ret = dict_set_str (xdata, GLUSTERFS_INTERNAL_FOP_KEY, "yes");
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
-                        "%s: Failed to set dictionary value: key = %s,"
-                        " gfid = %s", loc->path,
-                        GLUSTERFS_INTERNAL_FOP_KEY, gfid);
-                goto err;
-        }
-
-        ret = dict_set_int8 (xdata, DHT_IATT_IN_XDATA_KEY, 1);
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
-                        "%s: Failed to set dictionary value: key = %s,"
-                        " gfid = %s", loc->path,
-                        DHT_IATT_IN_XDATA_KEY, gfid);
-                goto err;
-        }
-
-        gf_uuid_unparse(loc->inode->gfid, gfid);
-
-        ret = dht_disk_layout_extract (this, layout, i, &disk_layout);
-        if (ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                        "Directory self heal xattr failed:"
-                        " %s: (subvol %s) Failed to extract disk layout,"
-                        " gfid = %s", loc->path, subvol->name, gfid);
-                goto err;
-        }
-
-        ret = dict_set_bin (xattr, conf->xattr_name, disk_layout, 4 * 4);
-        if (ret == -1) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                        "Directory self heal xattr failed:"
-                        "%s: (subvol %s) Failed to set xattr dictionary,"
-                        " gfid = %s", loc->path, subvol->name, gfid);
-                goto err;
-        }
-        disk_layout = NULL;
-
-        gf_msg_trace (this->name, 0,
-                      "setting hash range %u - %u (type %d) on subvolume %s"
-                      " for %s", layout->list[i].start, layout->list[i].stop,
-                      layout->type, subvol->name, loc->path);
-
-        if (local->xattr) {
-                data = dict_get (local->xattr, QUOTA_LIMIT_KEY);
-                if (data) {
-                        ret = dict_add (xattr, QUOTA_LIMIT_KEY, data);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "%s: Failed to set dictionary value:"
-                                        " key = %s",
-                                        loc->path, QUOTA_LIMIT_KEY);
-                        }
-                }
-                data = dict_get (local->xattr, QUOTA_LIMIT_OBJECTS_KEY);
-                if (data) {
-                        ret = dict_add (xattr, QUOTA_LIMIT_OBJECTS_KEY, data);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "%s: Failed to set dictionary value:"
-                                        " key = %s",
-                                        loc->path, QUOTA_LIMIT_OBJECTS_KEY);
-                        }
-                }
-        }
-
-        if (!gf_uuid_is_null (local->gfid))
-                gf_uuid_copy (loc->gfid, local->gfid);
-
-        STACK_WIND_COOKIE (frame, dht_selfheal_dir_xattr_cbk,
-                    (void *) subvol, subvol, subvol->fops->setxattr,
-                    loc, xattr, 0, xdata);
-
-        dict_unref (xattr);
-        dict_unref (xdata);
-
-        return 0;
+    xlator_t *subvol = NULL;
+    dict_t *xattr = NULL;
+    dict_t *xdata = NULL;
+    int ret = 0;
+    xlator_t *this = NULL;
+    int32_t *disk_layout = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    data_t *data = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+    if (req_subvol)
+        subvol = req_subvol;
+    else
+        subvol = layout->list[i].xlator;
+    this = frame->this;
+
+    GF_VALIDATE_OR_GOTO("", this, err);
+    GF_VALIDATE_OR_GOTO(this->name, layout, err);
+    GF_VALIDATE_OR_GOTO(this->name, local, err);
+    GF_VALIDATE_OR_GOTO(this->name, subvol, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    xattr = dict_new();
+    if (!xattr) {
+        goto err;
+    }
+
+    xdata = dict_new();
+    if (!xdata)
+        goto err;
+
+    ret = dict_set_str(xdata, GLUSTERFS_INTERNAL_FOP_KEY, "yes");
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "%s: Failed to set dictionary value: key = %s,"
+               " gfid = %s",
+               loc->path, GLUSTERFS_INTERNAL_FOP_KEY, gfid);
+        goto err;
+    }
+
+    ret = dict_set_int8(xdata, DHT_IATT_IN_XDATA_KEY, 1);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "%s: Failed to set dictionary value: key = %s,"
+               " gfid = %s",
+               loc->path, DHT_IATT_IN_XDATA_KEY, gfid);
+        goto err;
+    }
+
+    gf_uuid_unparse(loc->inode->gfid, gfid);
+
+    ret = dht_disk_layout_extract(this, layout, i, &disk_layout);
+    if (ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+               "Directory self heal xattr failed:"
+               " %s: (subvol %s) Failed to extract disk layout,"
+               " gfid = %s",
+               loc->path, subvol->name, gfid);
+        goto err;
+    }
+
+    ret = dict_set_bin(xattr, conf->xattr_name, disk_layout, 4 * 4);
+    if (ret == -1) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+               "Directory self heal xattr failed:"
+               "%s: (subvol %s) Failed to set xattr dictionary,"
+               " gfid = %s",
+               loc->path, subvol->name, gfid);
+        goto err;
+    }
+    disk_layout = NULL;
+
+    gf_msg_trace(this->name, 0,
+                 "setting hash range %u - %u (type %d) on subvolume %s"
+                 " for %s",
+                 layout->list[i].start, layout->list[i].stop, layout->type,
+                 subvol->name, loc->path);
+
+    if (local->xattr) {
+        data = dict_get(local->xattr, QUOTA_LIMIT_KEY);
+        if (data) {
+            ret = dict_add(xattr, QUOTA_LIMIT_KEY, data);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                       "%s: Failed to set dictionary value:"
+                       " key = %s",
+                       loc->path, QUOTA_LIMIT_KEY);
+            }
+        }
+        data = dict_get(local->xattr, QUOTA_LIMIT_OBJECTS_KEY);
+        if (data) {
+            ret = dict_add(xattr, QUOTA_LIMIT_OBJECTS_KEY, data);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                       "%s: Failed to set dictionary value:"
+                       " key = %s",
+                       loc->path, QUOTA_LIMIT_OBJECTS_KEY);
+            }
+        }
+    }
+
+    if (!gf_uuid_is_null(local->gfid))
+        gf_uuid_copy(loc->gfid, local->gfid);
+
+    STACK_WIND_COOKIE(frame, dht_selfheal_dir_xattr_cbk, (void *)subvol, subvol,
+                      subvol->fops->setxattr, loc, xattr, 0, xdata);
+
+    dict_unref(xattr);
+    dict_unref(xdata);
+
+    return 0;
 
 err:
-        if (xattr)
-                dict_unref (xattr);
-        if (xdata)
-                dict_unref (xdata);
+    if (xattr)
+        dict_unref(xattr);
+    if (xdata)
+        dict_unref(xdata);
 
-        GF_FREE (disk_layout);
+    GF_FREE(disk_layout);
 
-        dht_selfheal_dir_xattr_cbk (frame, (void *) subvol, frame->this,
-                                    -1, ENOMEM, NULL);
-        return 0;
+    dht_selfheal_dir_xattr_cbk(frame, (void *)subvol, frame->this, -1, ENOMEM,
+                               NULL);
+    return 0;
 }
 
 int
-dht_fix_dir_xattr (call_frame_t *frame, loc_t *loc, dht_layout_t *layout)
+dht_fix_dir_xattr(call_frame_t *frame, loc_t *loc, dht_layout_t *layout)
 {
-        dht_local_t *local = NULL;
-        int          i = 0;
-        int          count = 0;
-        xlator_t    *this = NULL;
-        dht_conf_t  *conf = NULL;
-        dht_layout_t *dummy = NULL;
-
-        local = frame->local;
-        this = frame->this;
-        conf = this->private;
-
-        gf_msg_debug (this->name, 0,
-                      "%s: Writing the new range for all subvolumes",
-                      loc->path);
-
-        local->call_cnt = count = conf->subvolume_cnt;
-
-        if (gf_log_get_loglevel () >= GF_LOG_DEBUG)
-                dht_log_new_layout_for_dir_selfheal (this, loc, layout);
-
-        for (i = 0; i < layout->cnt; i++) {
-                dht_selfheal_dir_xattr_persubvol (frame, loc, layout, i, NULL);
-
-                if (--count == 0)
-                        goto out;
-        }
-        /* if we are here, subvolcount > layout_count. subvols-per-directory
-         * option might be set here. We need to clear out layout from the
-         * non-participating subvolumes, else it will result in overlaps */
-        dummy = dht_layout_new (this, 1);
-        if (!dummy)
-                goto out;
-        dummy->commit_hash = layout->commit_hash;
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (_gf_false ==
-                    dht_is_subvol_in_layout (layout, conf->subvolumes[i])) {
-                        dht_selfheal_dir_xattr_persubvol (frame, loc, dummy, 0,
-                                                          conf->subvolumes[i]);
-                        if (--count == 0)
-                                break;
-                }
-        }
-
-        dht_layout_unref (this, dummy);
+    dht_local_t *local = NULL;
+    int i = 0;
+    int count = 0;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    dht_layout_t *dummy = NULL;
+
+    local = frame->local;
+    this = frame->this;
+    conf = this->private;
+
+    gf_msg_debug(this->name, 0, "%s: Writing the new range for all subvolumes",
+                 loc->path);
+
+    local->call_cnt = count = conf->subvolume_cnt;
+
+    if (gf_log_get_loglevel() >= GF_LOG_DEBUG)
+        dht_log_new_layout_for_dir_selfheal(this, loc, layout);
+
+    for (i = 0; i < layout->cnt; i++) {
+        dht_selfheal_dir_xattr_persubvol(frame, loc, layout, i, NULL);
+
+        if (--count == 0)
+            goto out;
+    }
+    /* if we are here, subvolcount > layout_count. subvols-per-directory
+     * option might be set here. We need to clear out layout from the
+     * non-participating subvolumes, else it will result in overlaps */
+    dummy = dht_layout_new(this, 1);
+    if (!dummy)
+        goto out;
+    dummy->commit_hash = layout->commit_hash;
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (_gf_false == dht_is_subvol_in_layout(layout, conf->subvolumes[i])) {
+            dht_selfheal_dir_xattr_persubvol(frame, loc, dummy, 0,
+                                             conf->subvolumes[i]);
+            if (--count == 0)
+                break;
+        }
+    }
+
+    dht_layout_unref(this, dummy);
 out:
-        return 0;
+    return 0;
 }
 
 int
-dht_selfheal_dir_xattr (call_frame_t *frame, loc_t *loc, dht_layout_t *layout)
+dht_selfheal_dir_xattr(call_frame_t *frame, loc_t *loc, dht_layout_t *layout)
 {
-        dht_local_t *local = NULL;
-        int          missing_xattr = 0;
-        int          i = 0;
-        xlator_t    *this = NULL;
-        dht_conf_t   *conf = NULL;
-        dht_layout_t *dummy = NULL;
-        char          gfid[GF_UUID_BUF_SIZE] = {0,};
-
-        local = frame->local;
-        this = frame->this;
-        conf = this->private;
-
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].err != -1 || !layout->list[i].stop) {
-                        /* err != -1 would mean xattr present on the directory
-                         * or the directory is non existent.
-                         * !layout->list[i].stop would mean layout absent
-                         */
-
-                        continue;
-                }
-                missing_xattr++;
-        }
-        /* Also account for subvolumes with no-layout. Used for zero'ing out
-         * the layouts and for setting quota key's if present */
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (_gf_false ==
-                    dht_is_subvol_in_layout (layout, conf->subvolumes[i])) {
-                        missing_xattr++;
-                }
-        }
-        gf_msg_trace (this->name, 0,
-                      "%d subvolumes missing xattr for %s",
-                      missing_xattr, loc->path);
-
-        if (missing_xattr == 0) {
-                dht_selfheal_dir_finish (frame, this, 0, 1);
-                return 0;
-        }
-
-        local->call_cnt = missing_xattr;
-
-        if (gf_log_get_loglevel () >= GF_LOG_DEBUG)
-                dht_log_new_layout_for_dir_selfheal (this, loc, layout);
-
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].err != -1 || !layout->list[i].stop)
-                        continue;
-
-                dht_selfheal_dir_xattr_persubvol (frame, loc, layout, i, NULL);
-
-                if (--missing_xattr == 0)
-                        break;
-        }
-        dummy = dht_layout_new (this, 1);
-        if (!dummy) {
-                gf_uuid_unparse (loc->gfid, gfid);
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
-                        "failed to allocate dummy layout, path:%s gfid:%s",
-                        loc->path, gfid);
-                goto out;
-        }
-        for (i = 0; i < conf->subvolume_cnt && missing_xattr; i++) {
-                if (_gf_false ==
-                    dht_is_subvol_in_layout (layout, conf->subvolumes[i])) {
-                        dht_selfheal_dir_xattr_persubvol (frame, loc, dummy, 0,
-                                                          conf->subvolumes[i]);
-                        missing_xattr--;
-                }
-        }
-
-        dht_layout_unref (this, dummy);
-out:
+    dht_local_t *local = NULL;
+    int missing_xattr = 0;
+    int i = 0;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    dht_layout_t *dummy = NULL;
+    char gfid[GF_UUID_BUF_SIZE] = {
+        0,
+    };
+
+    local = frame->local;
+    this = frame->this;
+    conf = this->private;
+
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].err != -1 || !layout->list[i].stop) {
+            /* err != -1 would mean xattr present on the directory
+             * or the directory is non existent.
+             * !layout->list[i].stop would mean layout absent
+             */
+
+            continue;
+        }
+        missing_xattr++;
+    }
+    /* Also account for subvolumes with no-layout. Used for zero'ing out
+     * the layouts and for setting quota key's if present */
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (_gf_false == dht_is_subvol_in_layout(layout, conf->subvolumes[i])) {
+            missing_xattr++;
+        }
+    }
+    gf_msg_trace(this->name, 0, "%d subvolumes missing xattr for %s",
+                 missing_xattr, loc->path);
+
+    if (missing_xattr == 0) {
+        dht_selfheal_dir_finish(frame, this, 0, 1);
         return 0;
+    }
+
+    local->call_cnt = missing_xattr;
+
+    if (gf_log_get_loglevel() >= GF_LOG_DEBUG)
+        dht_log_new_layout_for_dir_selfheal(this, loc, layout);
+
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].err != -1 || !layout->list[i].stop)
+            continue;
+
+        dht_selfheal_dir_xattr_persubvol(frame, loc, layout, i, NULL);
+
+        if (--missing_xattr == 0)
+            break;
+    }
+    dummy = dht_layout_new(this, 1);
+    if (!dummy) {
+        gf_uuid_unparse(loc->gfid, gfid);
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "failed to allocate dummy layout, path:%s gfid:%s", loc->path,
+               gfid);
+        goto out;
+    }
+    for (i = 0; i < conf->subvolume_cnt && missing_xattr; i++) {
+        if (_gf_false == dht_is_subvol_in_layout(layout, conf->subvolumes[i])) {
+            dht_selfheal_dir_xattr_persubvol(frame, loc, dummy, 0,
+                                             conf->subvolumes[i]);
+            missing_xattr--;
+        }
+    }
+
+    dht_layout_unref(this, dummy);
+out:
+    return 0;
 }
 
 gf_boolean_t
-dht_is_subvol_part_of_layout (dht_layout_t *layout, xlator_t *xlator)
+dht_is_subvol_part_of_layout(dht_layout_t *layout, xlator_t *xlator)
 {
-        int               i = 0;
-        gf_boolean_t    ret = _gf_false;
-
-        for (i = 0; i < layout->cnt; i++) {
-                if (!strcmp (layout->list[i].xlator->name, xlator->name)) {
-                        ret = _gf_true;
-                        break;
+    int i = 0;
+    gf_boolean_t ret = _gf_false;
 
-                }
+    for (i = 0; i < layout->cnt; i++) {
+        if (!strcmp(layout->list[i].xlator->name, xlator->name)) {
+            ret = _gf_true;
+            break;
         }
+    }
 
-        return ret;
+    return ret;
 }
 
 int
-dht_layout_index_from_conf (dht_layout_t *layout, xlator_t *xlator)
+dht_layout_index_from_conf(dht_layout_t *layout, xlator_t *xlator)
 {
-        int i = -1;
-        int j = 0;
+    int i = -1;
+    int j = 0;
 
-        for (j = 0; j < layout->cnt; j++) {
-                if (!strcmp (layout->list[j].xlator->name, xlator->name)) {
-                        i = j;
-                        break;
-                }
+    for (j = 0; j < layout->cnt; j++) {
+        if (!strcmp(layout->list[j].xlator->name, xlator->name)) {
+            i = j;
+            break;
         }
+    }
 
-        return i;
+    return i;
 }
 
 int
-dht_selfheal_dir_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                              int op_ret, int op_errno, struct iatt *statpre,
-                              struct iatt *statpost, dict_t *xdata)
+dht_selfheal_dir_setattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                             int op_ret, int op_errno, struct iatt *statpre,
+                             struct iatt *statpost, dict_t *xdata)
 {
-        dht_local_t   *local = NULL;
-        dht_layout_t  *layout = NULL;
-        int            this_call_cnt = 0, ret = -1;
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    int this_call_cnt = 0, ret = -1;
 
-        local  = frame->local;
-        layout = local->selfheal.layout;
+    local = frame->local;
+    layout = local->selfheal.layout;
 
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt)) {
-                if (!local->heal_layout) {
-                        gf_msg_trace (this->name, 0,
-                                      "Skip heal layout for %s gfid = %s ",
-                                      local->loc.path, uuid_utoa(local->gfid));
+    if (is_last_call(this_call_cnt)) {
+        if (!local->heal_layout) {
+            gf_msg_trace(this->name, 0, "Skip heal layout for %s gfid = %s ",
+                         local->loc.path, uuid_utoa(local->gfid));
 
-                        dht_selfheal_dir_finish (frame, this, 0, 1);
-                        return 0;
-                }
-                ret = dht_selfheal_layout_lock (frame, layout, _gf_false,
-                                                dht_selfheal_dir_xattr,
-                                                dht_should_heal_layout);
+            dht_selfheal_dir_finish(frame, this, 0, 1);
+            return 0;
+        }
+        ret = dht_selfheal_layout_lock(frame, layout, _gf_false,
+                                       dht_selfheal_dir_xattr,
+                                       dht_should_heal_layout);
 
-                if (ret < 0) {
-                        dht_selfheal_dir_finish (frame, this, -1, 1);
-                }
+        if (ret < 0) {
+            dht_selfheal_dir_finish(frame, this, -1, 1);
         }
+    }
 
-        return 0;
+    return 0;
 }
 
-
 int
-dht_selfheal_dir_setattr (call_frame_t *frame, loc_t *loc, struct iatt *stbuf,
-                          int32_t valid, dht_layout_t *layout)
+dht_selfheal_dir_setattr(call_frame_t *frame, loc_t *loc, struct iatt *stbuf,
+                         int32_t valid, dht_layout_t *layout)
 {
-        int           missing_attr = 0;
-        int           i     = 0, ret = -1;
-        dht_local_t  *local = NULL;
-        xlator_t     *this = NULL;
-        int           cnt  = 0;
-
-        local = frame->local;
-        this = frame->this;
+    int missing_attr = 0;
+    int i = 0, ret = -1;
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+    int cnt = 0;
+
+    local = frame->local;
+    this = frame->this;
+
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].err == -1)
+            missing_attr++;
+    }
+
+    if (missing_attr == 0) {
+        if (!local->heal_layout) {
+            gf_msg_trace(this->name, 0, "Skip heal layout for %s gfid = %s ",
+                         loc->path, uuid_utoa(loc->gfid));
+            dht_selfheal_dir_finish(frame, this, 0, 1);
+            return 0;
+        }
+        ret = dht_selfheal_layout_lock(frame, layout, _gf_false,
+                                       dht_selfheal_dir_xattr,
+                                       dht_should_heal_layout);
 
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].err == -1)
-                        missing_attr++;
+        if (ret < 0) {
+            dht_selfheal_dir_finish(frame, this, -1, 1);
         }
 
-        if (missing_attr == 0) {
-                if (!local->heal_layout) {
-                        gf_msg_trace (this->name, 0,
-                                      "Skip heal layout for %s gfid = %s ",
-                                      loc->path, uuid_utoa(loc->gfid));
-                        dht_selfheal_dir_finish (frame, this, 0, 1);
-                        return 0;
-                }
-                ret = dht_selfheal_layout_lock (frame, layout, _gf_false,
-                                                dht_selfheal_dir_xattr,
-                                                dht_should_heal_layout);
-
-                if (ret < 0) {
-                        dht_selfheal_dir_finish (frame, this, -1, 1);
-                }
-
-                return 0;
-        }
+        return 0;
+    }
 
-        local->call_cnt = missing_attr;
-        cnt = layout->cnt;
+    local->call_cnt = missing_attr;
+    cnt = layout->cnt;
 
-        for (i = 0; i < cnt; i++) {
-                if (layout->list[i].err == -1) {
-                        gf_msg_trace (this->name, 0,
-                                      "%s: setattr on subvol %s, gfid = %s",
-                                      loc->path, layout->list[i].xlator->name,
-                                      uuid_utoa(loc->gfid));
+    for (i = 0; i < cnt; i++) {
+        if (layout->list[i].err == -1) {
+            gf_msg_trace(this->name, 0, "%s: setattr on subvol %s, gfid = %s",
+                         loc->path, layout->list[i].xlator->name,
+                         uuid_utoa(loc->gfid));
 
-                        STACK_WIND (frame, dht_selfheal_dir_setattr_cbk,
-                                    layout->list[i].xlator,
-                                    layout->list[i].xlator->fops->setattr,
-                                    loc, stbuf, valid, NULL);
-                }
+            STACK_WIND(
+                frame, dht_selfheal_dir_setattr_cbk, layout->list[i].xlator,
+                layout->list[i].xlator->fops->setattr, loc, stbuf, valid, NULL);
         }
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_selfheal_dir_mkdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                            int op_ret, int op_errno,
-                            inode_t *inode, struct iatt *stbuf,
-                            struct iatt *preparent, struct iatt *postparent,
-                            dict_t *xdata)
+dht_selfheal_dir_mkdir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                           int op_ret, int op_errno, inode_t *inode,
+                           struct iatt *stbuf, struct iatt *preparent,
+                           struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t   *local = NULL;
-        dht_layout_t  *layout = NULL;
-        xlator_t      *prev = NULL;
-        xlator_t      *subvol = NULL;
-        int            i = 0, ret = -1;
-        int            this_call_cnt = 0;
-        char           gfid[GF_UUID_BUF_SIZE] = {0};
-
-        local  = frame->local;
-        layout = local->selfheal.layout;
-        prev   = cookie;
-        subvol = prev;
-
-        if ((op_ret == 0) || ((op_ret == -1) && (op_errno == EEXIST))) {
-                for (i = 0; i < layout->cnt; i++) {
-                        if (layout->list[i].xlator == subvol) {
-                                layout->list[i].err = -1;
-                                break;
-                        }
-                }
+    dht_local_t *local = NULL;
+    dht_layout_t *layout = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *subvol = NULL;
+    int i = 0, ret = -1;
+    int this_call_cnt = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    local = frame->local;
+    layout = local->selfheal.layout;
+    prev = cookie;
+    subvol = prev;
+
+    if ((op_ret == 0) || ((op_ret == -1) && (op_errno == EEXIST))) {
+        for (i = 0; i < layout->cnt; i++) {
+            if (layout->list[i].xlator == subvol) {
+                layout->list[i].err = -1;
+                break;
+            }
         }
+    }
 
-        if (op_ret) {
-                gf_uuid_unparse(local->loc.gfid, gfid);
-                gf_msg (this->name, ((op_errno == EEXIST) ? GF_LOG_DEBUG :
-                                     GF_LOG_WARNING),
-                        op_errno, DHT_MSG_DIR_SELFHEAL_FAILED,
-                        "Directory selfheal failed: path = %s, gfid = %s",
-                        local->loc.path, gfid );
-                goto out;
-        }
-        dht_iatt_merge (this, &local->preparent, preparent);
-        dht_iatt_merge (this, &local->postparent, postparent);
-        ret = 0;
+    if (op_ret) {
+        gf_uuid_unparse(local->loc.gfid, gfid);
+        gf_msg(this->name,
+               ((op_errno == EEXIST) ? GF_LOG_DEBUG : GF_LOG_WARNING), op_errno,
+               DHT_MSG_DIR_SELFHEAL_FAILED,
+               "Directory selfheal failed: path = %s, gfid = %s",
+               local->loc.path, gfid);
+        goto out;
+    }
+    dht_iatt_merge(this, &local->preparent, preparent);
+    dht_iatt_merge(this, &local->postparent, postparent);
+    ret = 0;
 
 out:
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt)) {
-                dht_selfheal_dir_finish (frame, this, ret, 0);
-                dht_selfheal_dir_setattr (frame, &local->loc, &local->stbuf, 0xffffff, layout);
-        }
+    if (is_last_call(this_call_cnt)) {
+        dht_selfheal_dir_finish(frame, this, ret, 0);
+        dht_selfheal_dir_setattr(frame, &local->loc, &local->stbuf, 0xffffff,
+                                 layout);
+    }
 
-        return 0;
+    return 0;
 }
 
 void
-dht_selfheal_dir_mkdir_setacl (dict_t *xattr, dict_t *dict)
+dht_selfheal_dir_mkdir_setacl(dict_t *xattr, dict_t *dict)
 {
-        data_t          *acl_default = NULL;
-        data_t          *acl_access = NULL;
-        xlator_t        *this = NULL;
-        int     ret = -1;
-
-        GF_ASSERT (xattr);
-        GF_ASSERT (dict);
-
-        this = THIS;
-        GF_ASSERT (this);
-
-        acl_default = dict_get (xattr, POSIX_ACL_DEFAULT_XATTR);
-
-        if (!acl_default) {
-                gf_msg_debug (this->name, 0,
-                              "ACL_DEFAULT xattr not present");
-                goto cont;
-        }
-        ret = dict_set (dict, POSIX_ACL_DEFAULT_XATTR, acl_default);
-        if (ret)
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value.key = %s",
-                        POSIX_ACL_DEFAULT_XATTR);
+    data_t *acl_default = NULL;
+    data_t *acl_access = NULL;
+    xlator_t *this = NULL;
+    int ret = -1;
+
+    GF_ASSERT(xattr);
+    GF_ASSERT(dict);
+
+    this = THIS;
+    GF_ASSERT(this);
+
+    acl_default = dict_get(xattr, POSIX_ACL_DEFAULT_XATTR);
+
+    if (!acl_default) {
+        gf_msg_debug(this->name, 0, "ACL_DEFAULT xattr not present");
+        goto cont;
+    }
+    ret = dict_set(dict, POSIX_ACL_DEFAULT_XATTR, acl_default);
+    if (ret)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value.key = %s",
+               POSIX_ACL_DEFAULT_XATTR);
 cont:
-        acl_access = dict_get (xattr, POSIX_ACL_ACCESS_XATTR);
-        if (!acl_access) {
-                gf_msg_debug (this->name, 0,
-                              "ACL_ACCESS xattr not present");
-                goto out;
-        }
-        ret = dict_set (dict, POSIX_ACL_ACCESS_XATTR, acl_access);
-        if (ret)
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value.key = %s",
-                        POSIX_ACL_ACCESS_XATTR);
+    acl_access = dict_get(xattr, POSIX_ACL_ACCESS_XATTR);
+    if (!acl_access) {
+        gf_msg_debug(this->name, 0, "ACL_ACCESS xattr not present");
+        goto out;
+    }
+    ret = dict_set(dict, POSIX_ACL_ACCESS_XATTR, acl_access);
+    if (ret)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value.key = %s",
+               POSIX_ACL_ACCESS_XATTR);
 
 out:
-        return;
+    return;
 }
 
-
 void
-dht_selfheal_dir_mkdir_setquota (dict_t *src, dict_t *dst)
+dht_selfheal_dir_mkdir_setquota(dict_t *src, dict_t *dst)
 {
-        data_t           *quota_limit_key = NULL;
-        data_t           *quota_limit_obj_key = NULL;
-        xlator_t        *this = NULL;
-        int     ret = -1;
-
-        GF_ASSERT (src);
-        GF_ASSERT (dst);
-
-        this = THIS;
-        GF_ASSERT (this);
-
-        quota_limit_key = dict_get (src, QUOTA_LIMIT_KEY);
-        if (!quota_limit_key) {
-                gf_msg_debug (this->name, 0,
-                              "QUOTA_LIMIT_KEY xattr not present");
-                goto cont;
-        }
-        ret = dict_set(dst, QUOTA_LIMIT_KEY, quota_limit_key);
-        if (ret)
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value.key = %s",
-                        QUOTA_LIMIT_KEY);
+    data_t *quota_limit_key = NULL;
+    data_t *quota_limit_obj_key = NULL;
+    xlator_t *this = NULL;
+    int ret = -1;
+
+    GF_ASSERT(src);
+    GF_ASSERT(dst);
+
+    this = THIS;
+    GF_ASSERT(this);
+
+    quota_limit_key = dict_get(src, QUOTA_LIMIT_KEY);
+    if (!quota_limit_key) {
+        gf_msg_debug(this->name, 0, "QUOTA_LIMIT_KEY xattr not present");
+        goto cont;
+    }
+    ret = dict_set(dst, QUOTA_LIMIT_KEY, quota_limit_key);
+    if (ret)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value.key = %s", QUOTA_LIMIT_KEY);
 
 cont:
-        quota_limit_obj_key = dict_get (src, QUOTA_LIMIT_OBJECTS_KEY);
-        if (!quota_limit_obj_key) {
-                gf_msg_debug (this->name, 0,
-                              "QUOTA_LIMIT_OBJECTS_KEY xattr not present");
-                goto out;
-        }
-        ret = dict_set (dst, QUOTA_LIMIT_OBJECTS_KEY, quota_limit_obj_key);
-        if (ret)
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value.key = %s",
-                        QUOTA_LIMIT_OBJECTS_KEY);
+    quota_limit_obj_key = dict_get(src, QUOTA_LIMIT_OBJECTS_KEY);
+    if (!quota_limit_obj_key) {
+        gf_msg_debug(this->name, 0,
+                     "QUOTA_LIMIT_OBJECTS_KEY xattr not present");
+        goto out;
+    }
+    ret = dict_set(dst, QUOTA_LIMIT_OBJECTS_KEY, quota_limit_obj_key);
+    if (ret)
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value.key = %s",
+               QUOTA_LIMIT_OBJECTS_KEY);
 
 out:
-        return;
+    return;
 }
 
-
-
-
-
 int
-dht_selfheal_dir_mkdir_lookup_done (call_frame_t *frame, xlator_t *this)
+dht_selfheal_dir_mkdir_lookup_done(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t  *local = NULL;
-        int           i     = 0;
-        dict_t       *dict = NULL;
-        dht_layout_t  *layout = NULL;
-        loc_t        *loc   = NULL;
-        int           cnt   = 0;
-        int          ret    = -1;
-
-        VALIDATE_OR_GOTO (this->private, err);
-
-        local = frame->local;
-        layout = local->layout;
-        loc    = &local->loc;
-
-        if (!gf_uuid_is_null (local->gfid)) {
-                dict = dict_new ();
-                if (!dict)
-                        return -1;
-
-                ret = dict_set_gfuuid (dict, "gfid-req", local->gfid, true);
-                if (ret)
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "%s: Failed to set dictionary value:"
-                                " key = gfid-req", loc->path);
-        } else if (local->params) {
-                /* Send the dictionary from higher layers directly */
-
-                dict = dict_ref (local->params);
-        }
-        /* Code to update all extended attributed from local->xattr
-           to dict
-        */
-        dht_dir_set_heal_xattr (this, local, dict, local->xattr, NULL,
-                                NULL);
+    dht_local_t *local = NULL;
+    int i = 0;
+    dict_t *dict = NULL;
+    dht_layout_t *layout = NULL;
+    loc_t *loc = NULL;
+    int cnt = 0;
+    int ret = -1;
+
+    VALIDATE_OR_GOTO(this->private, err);
+
+    local = frame->local;
+    layout = local->layout;
+    loc = &local->loc;
+
+    if (!gf_uuid_is_null(local->gfid)) {
+        dict = dict_new();
+        if (!dict)
+            return -1;
+
+        ret = dict_set_gfuuid(dict, "gfid-req", local->gfid, true);
+        if (ret)
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                   "%s: Failed to set dictionary value:"
+                   " key = gfid-req",
+                   loc->path);
+    } else if (local->params) {
+        /* Send the dictionary from higher layers directly */
+
+        dict = dict_ref(local->params);
+    }
+    /* Code to update all extended attributed from local->xattr
+       to dict
+    */
+    dht_dir_set_heal_xattr(this, local, dict, local->xattr, NULL, NULL);
+
+    if (!dict) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "dict is NULL, need to make sure gfids are same");
+        dict = dict_new();
+        if (!dict)
+            return -1;
+    }
+    ret = dict_set_flag(dict, GF_INTERNAL_CTX_KEY, GF_DHT_HEAL_DIR);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value for"
+               " key = %s at path: %s",
+               GF_INTERNAL_CTX_KEY, loc->path);
+        /* We can still continue. As heal can still happen
+         * unless quota limits have reached for the dir.
+         */
+    }
 
-        if (!dict) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "dict is NULL, need to make sure gfids are same");
-                dict = dict_new ();
-                if (!dict)
-                        return -1;
-        }
-        ret = dict_set_flag (dict, GF_INTERNAL_CTX_KEY, GF_DHT_HEAL_DIR);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value for"
-                        " key = %s at path: %s",
-                        GF_INTERNAL_CTX_KEY, loc->path);
-                /* We can still continue. As heal can still happen
-                 * unless quota limits have reached for the dir.
-                 */
-        }
+    cnt = layout->cnt;
+    for (i = 0; i < cnt; i++) {
+        if (layout->list[i].err == ESTALE || layout->list[i].err == ENOENT ||
+            local->selfheal.force_mkdir) {
+            gf_msg_debug(this->name, 0, "Creating directory %s on subvol %s",
+                         loc->path, layout->list[i].xlator->name);
 
-        cnt = layout->cnt;
-        for (i = 0; i < cnt; i++) {
-                if (layout->list[i].err == ESTALE ||
-                    layout->list[i].err == ENOENT ||
-                    local->selfheal.force_mkdir) {
-                        gf_msg_debug (this->name, 0,
-                                      "Creating directory %s on subvol %s",
-                                      loc->path, layout->list[i].xlator->name);
-
-                        STACK_WIND_COOKIE (frame, dht_selfheal_dir_mkdir_cbk,
-                                           layout->list[i].xlator,
-                                           layout->list[i].xlator,
-                                           layout->list[i].xlator->fops->mkdir,
-                                           loc,
-                                           st_mode_from_ia (local->stbuf.ia_prot,
-                                                            local->stbuf.ia_type),
-                                           0, dict);
-                }
+            STACK_WIND_COOKIE(
+                frame, dht_selfheal_dir_mkdir_cbk, layout->list[i].xlator,
+                layout->list[i].xlator, layout->list[i].xlator->fops->mkdir,
+                loc,
+                st_mode_from_ia(local->stbuf.ia_prot, local->stbuf.ia_type), 0,
+                dict);
         }
+    }
 
-        if (dict)
-                dict_unref (dict);
+    if (dict)
+        dict_unref(dict);
 
-        return 0;
+    return 0;
 
 err:
-        dht_selfheal_dir_finish (frame, this, -1, 1);
-        return 0;
+    dht_selfheal_dir_finish(frame, this, -1, 1);
+    return 0;
 }
 
 int
-dht_selfheal_dir_mkdir_lookup_cbk (call_frame_t *frame, void *cookie,
-                                   xlator_t *this, int op_ret, int op_errno,
-                                   inode_t *inode, struct iatt *stbuf,
-                                   dict_t *xattr, struct iatt *postparent)
+dht_selfheal_dir_mkdir_lookup_cbk(call_frame_t *frame, void *cookie,
+                                  xlator_t *this, int op_ret, int op_errno,
+                                  inode_t *inode, struct iatt *stbuf,
+                                  dict_t *xattr, struct iatt *postparent)
 {
-        dht_local_t  *local = NULL;
-        int           i     = 0;
-        int           this_call_cnt = 0;
-        int           missing_dirs = 0;
-        dht_layout_t  *layout = NULL;
-        dht_conf_t    *conf   = 0;
-        loc_t         *loc    = NULL;
-        int           check_mds = 0;
-        int           errst     = 0;
-        int32_t       mds_xattr_val[1] = {0};
-        char          gfid_local[GF_UUID_BUF_SIZE] = {0};
-
-        VALIDATE_OR_GOTO (this->private, err);
-
-        local = frame->local;
-        layout = local->layout;
-        loc = &local->loc;
-        conf = this->private;
-
-        if (local->gfid)
-                gf_uuid_unparse(local->gfid, gfid_local);
-
-        this_call_cnt = dht_frame_return (frame);
-
-        LOCK (&frame->lock);
-        {
-                if ((op_ret < 0) &&
-                    (op_errno == ENOENT || op_errno == ESTALE)) {
-                        local->selfheal.hole_cnt = !local->selfheal.hole_cnt ? 1
-                                                : local->selfheal.hole_cnt + 1;
-                }
-
-                if (!op_ret) {
-                        dht_iatt_merge (this, &local->stbuf, stbuf);
-                }
-                check_mds = dht_dict_get_array (xattr, conf->mds_xattr_key,
-                                                mds_xattr_val, 1, &errst);
-                if (dict_get (xattr, conf->mds_xattr_key) && check_mds && !errst) {
-                        dict_unref (local->xattr);
-                        local->xattr = dict_ref (xattr);
-                }
+    dht_local_t *local = NULL;
+    int i = 0;
+    int this_call_cnt = 0;
+    int missing_dirs = 0;
+    dht_layout_t *layout = NULL;
+    dht_conf_t *conf = 0;
+    loc_t *loc = NULL;
+    int check_mds = 0;
+    int errst = 0;
+    int32_t mds_xattr_val[1] = {0};
+    char gfid_local[GF_UUID_BUF_SIZE] = {0};
+
+    VALIDATE_OR_GOTO(this->private, err);
+
+    local = frame->local;
+    layout = local->layout;
+    loc = &local->loc;
+    conf = this->private;
+
+    if (local->gfid)
+        gf_uuid_unparse(local->gfid, gfid_local);
+
+    this_call_cnt = dht_frame_return(frame);
+
+    LOCK(&frame->lock);
+    {
+        if ((op_ret < 0) && (op_errno == ENOENT || op_errno == ESTALE)) {
+            local->selfheal.hole_cnt = !local->selfheal.hole_cnt
+                                           ? 1
+                                           : local->selfheal.hole_cnt + 1;
+        }
+
+        if (!op_ret) {
+            dht_iatt_merge(this, &local->stbuf, stbuf);
+        }
+        check_mds = dht_dict_get_array(xattr, conf->mds_xattr_key,
+                                       mds_xattr_val, 1, &errst);
+        if (dict_get(xattr, conf->mds_xattr_key) && check_mds && !errst) {
+            dict_unref(local->xattr);
+            local->xattr = dict_ref(xattr);
+        }
+    }
+    UNLOCK(&frame->lock);
+
+    if (is_last_call(this_call_cnt)) {
+        if (local->selfheal.hole_cnt == layout->cnt) {
+            gf_msg_debug(this->name, op_errno,
+                         "Lookup failed, an rmdir could have "
+                         "deleted this entry %s",
+                         loc->name);
+            local->op_errno = op_errno;
+            goto err;
+        } else {
+            for (i = 0; i < layout->cnt; i++) {
+                if (layout->list[i].err == ENOENT ||
+                    layout->list[i].err == ESTALE ||
+                    local->selfheal.force_mkdir)
+                    missing_dirs++;
+            }
+
+            if (missing_dirs == 0) {
+                dht_selfheal_dir_finish(frame, this, 0, 0);
+                dht_selfheal_dir_setattr(frame, loc, &local->stbuf, 0xffffffff,
+                                         layout);
+                return 0;
+            }
 
+            local->call_cnt = missing_dirs;
+            dht_selfheal_dir_mkdir_lookup_done(frame, this);
         }
-        UNLOCK (&frame->lock);
-
-        if (is_last_call (this_call_cnt)) {
-                if (local->selfheal.hole_cnt == layout->cnt) {
-                        gf_msg_debug (this->name, op_errno,
-                                      "Lookup failed, an rmdir could have "
-                                      "deleted this entry %s", loc->name);
-                        local->op_errno = op_errno;
-                        goto err;
-                } else {
-                        for (i = 0; i < layout->cnt; i++) {
-                                if (layout->list[i].err == ENOENT ||
-                                    layout->list[i].err == ESTALE ||
-                                    local->selfheal.force_mkdir)
-                                        missing_dirs++;
-                        }
-
-                        if (missing_dirs == 0) {
-                                dht_selfheal_dir_finish (frame, this, 0, 0);
-                                dht_selfheal_dir_setattr (frame, loc,
-                                                          &local->stbuf,
-                                                          0xffffffff, layout);
-                                return 0;
-                        }
-
-                        local->call_cnt = missing_dirs;
-                        dht_selfheal_dir_mkdir_lookup_done (frame, this);
-                }
-        }
+    }
 
-        return 0;
+    return 0;
 
 err:
-        dht_selfheal_dir_finish (frame, this, -1, 1);
-        return 0;
+    dht_selfheal_dir_finish(frame, this, -1, 1);
+    return 0;
 }
 
-
 int
-dht_selfheal_dir_mkdir_lock_cbk (call_frame_t *frame, void *cookie,
-                                 xlator_t *this, int32_t op_ret,
-                                 int32_t op_errno, dict_t *xdata)
+dht_selfheal_dir_mkdir_lock_cbk(call_frame_t *frame, void *cookie,
+                                xlator_t *this, int32_t op_ret,
+                                int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        dht_conf_t   *conf  = NULL;
-        int           i     = 0;
-        int           ret   = -1;
-        xlator_t     *mds_subvol = NULL;
-
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-        local = frame->local;
-        mds_subvol = local->mds_subvol;
-
-        local->call_cnt = conf->subvolume_cnt;
-
-        if (op_ret < 0) {
-
-                /* We get this error when the directory entry was not created
-                 * on a newky attached tier subvol. Hence proceed and do mkdir
-                 * on the tier subvol.
-                 */
-                if (op_errno == EINVAL) {
-                        local->call_cnt = 1;
-                        dht_selfheal_dir_mkdir_lookup_done (frame, this);
-                        return 0;
-                }
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int i = 0;
+    int ret = -1;
+    xlator_t *mds_subvol = NULL;
 
-                gf_msg (this->name, GF_LOG_WARNING, op_errno,
-                        DHT_MSG_ENTRYLK_ERROR,
-                        "acquiring entrylk after inodelk failed for %s",
-                        local->loc.path);
+    VALIDATE_OR_GOTO(this->private, err);
 
-                local->op_errno = op_errno;
-                goto err;
-        }
+    conf = this->private;
+    local = frame->local;
+    mds_subvol = local->mds_subvol;
 
-        /* After getting locks, perform lookup again to ensure that the
-           directory was not deleted by a racing rmdir
-        */
-        if (!local->xattr_req)
-                local->xattr_req = dict_new ();
-
-        ret = dict_set_int32 (local->xattr_req, "list-xattr", 1);
-        if (ret)
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary key list-xattr value "
-                        " for path %s ", local->loc.path);
+    local->call_cnt = conf->subvolume_cnt;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (mds_subvol && conf->subvolumes[i] == mds_subvol) {
-                        STACK_WIND_COOKIE (frame,
-                                           dht_selfheal_dir_mkdir_lookup_cbk,
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->lookup,
-                                           &local->loc, local->xattr_req);
-                } else {
-                       STACK_WIND_COOKIE (frame,
-                                          dht_selfheal_dir_mkdir_lookup_cbk,
-                                          conf->subvolumes[i],
-                                          conf->subvolumes[i],
-                                          conf->subvolumes[i]->fops->lookup,
-                                          &local->loc, NULL);
-                }
+    if (op_ret < 0) {
+        /* We get this error when the directory entry was not created
+         * on a newky attached tier subvol. Hence proceed and do mkdir
+         * on the tier subvol.
+         */
+        if (op_errno == EINVAL) {
+            local->call_cnt = 1;
+            dht_selfheal_dir_mkdir_lookup_done(frame, this);
+            return 0;
+        }
+
+        gf_msg(this->name, GF_LOG_WARNING, op_errno, DHT_MSG_ENTRYLK_ERROR,
+               "acquiring entrylk after inodelk failed for %s",
+               local->loc.path);
+
+        local->op_errno = op_errno;
+        goto err;
+    }
+
+    /* After getting locks, perform lookup again to ensure that the
+       directory was not deleted by a racing rmdir
+    */
+    if (!local->xattr_req)
+        local->xattr_req = dict_new();
+
+    ret = dict_set_int32(local->xattr_req, "list-xattr", 1);
+    if (ret)
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary key list-xattr value "
+               " for path %s ",
+               local->loc.path);
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (mds_subvol && conf->subvolumes[i] == mds_subvol) {
+            STACK_WIND_COOKIE(frame, dht_selfheal_dir_mkdir_lookup_cbk,
+                              conf->subvolumes[i], conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->lookup, &local->loc,
+                              local->xattr_req);
+        } else {
+            STACK_WIND_COOKIE(frame, dht_selfheal_dir_mkdir_lookup_cbk,
+                              conf->subvolumes[i], conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->lookup, &local->loc,
+                              NULL);
         }
+    }
 
-        return 0;
+    return 0;
 
 err:
-        dht_selfheal_dir_finish (frame, this, -1, 1);
-        return 0;
+    dht_selfheal_dir_finish(frame, this, -1, 1);
+    return 0;
 }
 
 int
-dht_selfheal_dir_mkdir (call_frame_t *frame, loc_t *loc,
-                        dht_layout_t *layout, int force)
+dht_selfheal_dir_mkdir(call_frame_t *frame, loc_t *loc, dht_layout_t *layout,
+                       int force)
 {
-        int           missing_dirs = 0;
-        int           i     = 0;
-        int           ret   = -1;
-        dht_local_t  *local = NULL;
-        xlator_t     *this  = NULL;
-
-        local = frame->local;
-        this = frame->this;
-
-        local->selfheal.force_mkdir = force;
-        local->selfheal.hole_cnt = 0;
-
-        for (i = 0; i < layout->cnt; i++) {
-                if (layout->list[i].err == ENOENT || force)
-                        missing_dirs++;
-        }
-
-        if (missing_dirs == 0) {
-                if (!__is_root_gfid (local->stbuf.ia_gfid)) {
-                        if (local->need_xattr_heal) {
-                                local->need_xattr_heal = 0;
-                                ret =  dht_dir_xattr_heal (this, local);
-                                if (ret)
-                                        gf_msg (this->name, GF_LOG_ERROR,
-                                                ret,
-                                                DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                                "xattr heal failed for "
-                                                "directory  %s gfid %s ",
-                                                local->loc.path,
-                                                local->gfid);
-                        } else {
-                                if (!gf_uuid_is_null (local->gfid))
-                                        gf_uuid_copy (loc->gfid, local->gfid);
-
-                                ret = dht_common_mark_mdsxattr (frame, NULL, 0);
-                                if (!ret)
-                                        return 0;
-
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                        "Failed to set mds xattr "
-                                        "for directory  %s gfid %s ",
-                                        local->loc.path, local->gfid);
-                        }
-                }
-                dht_selfheal_dir_setattr (frame, loc, &local->stbuf,
-                                          0xffffffff, layout);
-                return 0;
-        }
-
-        if (local->hashed_subvol == NULL)
-                local->hashed_subvol = dht_subvol_get_hashed (this, loc);
-
-        if (local->hashed_subvol == NULL) {
-                local->op_errno = EINVAL;
-                gf_msg (this->name, GF_LOG_WARNING, local->op_errno,
-                        DHT_MSG_HASHED_SUBVOL_GET_FAILED,
-                        "(%s/%s) (path: %s): "
-                        "hashed subvolume not found", loc->pargfid, loc->name,
-                        loc->path);
-                goto err;
-        }
-
-        local->current = &local->lock[0];
-        ret = dht_protect_namespace (frame, loc, local->hashed_subvol,
-                                     &local->current->ns,
-                                     dht_selfheal_dir_mkdir_lock_cbk);
-
-        if (ret < 0)
-                goto err;
-
+    int missing_dirs = 0;
+    int i = 0;
+    int ret = -1;
+    dht_local_t *local = NULL;
+    xlator_t *this = NULL;
+
+    local = frame->local;
+    this = frame->this;
+
+    local->selfheal.force_mkdir = force;
+    local->selfheal.hole_cnt = 0;
+
+    for (i = 0; i < layout->cnt; i++) {
+        if (layout->list[i].err == ENOENT || force)
+            missing_dirs++;
+    }
+
+    if (missing_dirs == 0) {
+        if (!__is_root_gfid(local->stbuf.ia_gfid)) {
+            if (local->need_xattr_heal) {
+                local->need_xattr_heal = 0;
+                ret = dht_dir_xattr_heal(this, local);
+                if (ret)
+                    gf_msg(this->name, GF_LOG_ERROR, ret,
+                           DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                           "xattr heal failed for "
+                           "directory  %s gfid %s ",
+                           local->loc.path, local->gfid);
+            } else {
+                if (!gf_uuid_is_null(local->gfid))
+                    gf_uuid_copy(loc->gfid, local->gfid);
+
+                ret = dht_common_mark_mdsxattr(frame, NULL, 0);
+                if (!ret)
+                    return 0;
+
+                gf_msg(this->name, GF_LOG_INFO, 0,
+                       DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                       "Failed to set mds xattr "
+                       "for directory  %s gfid %s ",
+                       local->loc.path, local->gfid);
+            }
+        }
+        dht_selfheal_dir_setattr(frame, loc, &local->stbuf, 0xffffffff, layout);
         return 0;
+    }
+
+    if (local->hashed_subvol == NULL)
+        local->hashed_subvol = dht_subvol_get_hashed(this, loc);
+
+    if (local->hashed_subvol == NULL) {
+        local->op_errno = EINVAL;
+        gf_msg(this->name, GF_LOG_WARNING, local->op_errno,
+               DHT_MSG_HASHED_SUBVOL_GET_FAILED,
+               "(%s/%s) (path: %s): "
+               "hashed subvolume not found",
+               loc->pargfid, loc->name, loc->path);
+        goto err;
+    }
+
+    local->current = &local->lock[0];
+    ret = dht_protect_namespace(frame, loc, local->hashed_subvol,
+                                &local->current->ns,
+                                dht_selfheal_dir_mkdir_lock_cbk);
+
+    if (ret < 0)
+        goto err;
+
+    return 0;
 err:
-        return -1;
+    return -1;
 }
 
 int
-dht_selfheal_layout_alloc_start (xlator_t *this, loc_t *loc,
-                                 dht_layout_t *layout)
+dht_selfheal_layout_alloc_start(xlator_t *this, loc_t *loc,
+                                dht_layout_t *layout)
 {
-        int         start                               = 0;
-        uint32_t    hashval                             = 0;
-        int         ret                                 = 0;
-        const char *str                                 = NULL;
-        dht_conf_t *conf                                = NULL;
-        char           buf[UUID_CANONICAL_FORM_LEN + 1] = {0, };
-
-        conf = this->private;
-
-        if (conf->randomize_by_gfid) {
-                str = uuid_utoa_r (loc->gfid, buf);
-        } else {
-                str = loc->path;
-        }
-
-        ret = dht_hash_compute (this, layout->type, str, &hashval);
-        if (ret == 0) {
-                start = (hashval % layout->cnt);
-        }
-
-        return start;
+    int start = 0;
+    uint32_t hashval = 0;
+    int ret = 0;
+    const char *str = NULL;
+    dht_conf_t *conf = NULL;
+    char buf[UUID_CANONICAL_FORM_LEN + 1] = {
+        0,
+    };
+
+    conf = this->private;
+
+    if (conf->randomize_by_gfid) {
+        str = uuid_utoa_r(loc->gfid, buf);
+    } else {
+        str = loc->path;
+    }
+
+    ret = dht_hash_compute(this, layout->type, str, &hashval);
+    if (ret == 0) {
+        start = (hashval % layout->cnt);
+    }
+
+    return start;
 }
 
 static int
-dht_get_layout_count (xlator_t *this, dht_layout_t *layout, int new_layout)
+dht_get_layout_count(xlator_t *this, dht_layout_t *layout, int new_layout)
 {
-        int i = 0;
-        int j = 0;
-        int err = 0;
-        int count = 0;
-        dht_conf_t *conf = NULL;
-
-        /* Gets in use only for replace-brick, remove-brick */
-        conf = this->private;
+    int i = 0;
+    int j = 0;
+    int err = 0;
+    int count = 0;
+    dht_conf_t *conf = NULL;
+
+    /* Gets in use only for replace-brick, remove-brick */
+    conf = this->private;
+    for (i = 0; i < layout->cnt; i++) {
+        for (j = 0; j < conf->subvolume_cnt; j++) {
+            if (conf->decommissioned_bricks[j] &&
+                conf->decommissioned_bricks[j] == layout->list[i].xlator) {
+                layout->list[i].err = EINVAL;
+                break;
+            }
+        }
+    }
+
+    for (i = 0; i < layout->cnt; i++) {
+        err = layout->list[i].err;
+        if (err == -1 || err == 0 || err == ENOENT) {
+            /* Take this with a pinch of salt. The behaviour seems
+             * to be slightly different when this function is
+             * invoked from mkdir codepath. For eg., err == 0 in
+             * mkdir codepath means directory created but xattr
+             * is not set yet.
+             */
+
+            /* Setting list[i].err = -1 is an indication for
+               dht_selfheal_layout_new_directory() to assign
+               a range. We set it to -1 based on any one of
+               the three criteria:
+
+               - err == -1 already, which means directory
+                 existed but layout was not set on it.
+
+               - err == 0, which means directory exists and
+                 has an old layout piece which will be
+                 overwritten now.
+
+               - err == ENOENT, which means directory does
+                 not exist (possibly racing with mkdir or
+                 finishing half done mkdir). The missing
+                 directory will be attempted to be recreated.
+            */
+            count++;
+            if (!err)
+                layout->list[i].err = -1;
+        }
+    }
+
+    /* no subvolume has enough space, but can't stop directory creation */
+    if (!count || !new_layout) {
         for (i = 0; i < layout->cnt; i++) {
-                for (j = 0; j < conf->subvolume_cnt; j++) {
-                        if (conf->decommissioned_bricks[j] &&
-                            conf->decommissioned_bricks[j] == layout->list[i].xlator) {
-                                layout->list[i].err = EINVAL;
-                                break;
-                        }
-                }
-        }
-
-        for (i = 0; i < layout->cnt; i++) {
-                err = layout->list[i].err;
-                if (err == -1 || err == 0 || err == ENOENT) {
-                        /* Take this with a pinch of salt. The behaviour seems
-                         * to be slightly different when this function is
-                         * invoked from mkdir codepath. For eg., err == 0 in
-                         * mkdir codepath means directory created but xattr
-                         * is not set yet.
-                         */
-
-			/* Setting list[i].err = -1 is an indication for
-			   dht_selfheal_layout_new_directory() to assign
-			   a range. We set it to -1 based on any one of
-			   the three criteria:
-
-			   - err == -1 already, which means directory
-			     existed but layout was not set on it.
-
-			   - err == 0, which means directory exists and
-			     has an old layout piece which will be
-			     overwritten now.
-
-			   - err == ENOENT, which means directory does
-			     not exist (possibly racing with mkdir or
-			     finishing half done mkdir). The missing
-			     directory will be attempted to be recreated.
-			*/
-                        count++;
-			if (!err)
-				layout->list[i].err = -1;
-                }
-        }
-
-        /* no subvolume has enough space, but can't stop directory creation */
-        if (!count || !new_layout) {
-                for (i = 0; i < layout->cnt; i++) {
-                        err = layout->list[i].err;
-                        if (err == ENOSPC) {
-                                layout->list[i].err = -1;
-                                count++;
-                        }
-                }
-        }
-
-        /* if layout->spread_cnt is set, check if it is <= available
-         * subvolumes (down brick and decommissioned bricks are considered
-         * un-availbale). Else return count (available up bricks) */
-        count = ((layout->spread_cnt &&
-                 (layout->spread_cnt <= count)) ?
-                 layout->spread_cnt : ((count) ? count : 1));
-
-        return count;
+            err = layout->list[i].err;
+            if (err == ENOSPC) {
+                layout->list[i].err = -1;
+                count++;
+            }
+        }
+    }
+
+    /* if layout->spread_cnt is set, check if it is <= available
+     * subvolumes (down brick and decommissioned bricks are considered
+     * un-availbale). Else return count (available up bricks) */
+    count = ((layout->spread_cnt && (layout->spread_cnt <= count))
+                 ? layout->spread_cnt
+                 : ((count) ? count : 1));
+
+    return count;
 }
 
+void
+dht_selfheal_layout_new_directory(call_frame_t *frame, loc_t *loc,
+                                  dht_layout_t *new_layout);
 
-void dht_selfheal_layout_new_directory (call_frame_t *frame, loc_t *loc,
-					dht_layout_t *new_layout);
-
-void dht_layout_entry_swap (dht_layout_t *layout, int i, int j);
-void dht_layout_range_swap (dht_layout_t *layout, int i, int j);
+void
+dht_layout_entry_swap(dht_layout_t *layout, int i, int j);
+void
+dht_layout_range_swap(dht_layout_t *layout, int i, int j);
 
 /*
  * It's a bit icky using local variables in a macro, but it makes the rest
  * of the code a lot clearer.
  */
-#define OV_ENTRY(x,y)      table[x*new->cnt+y]
+#define OV_ENTRY(x, y) table[x * new->cnt + y]
 
 void
-dht_selfheal_layout_maximize_overlap (call_frame_t *frame, loc_t *loc,
-				      dht_layout_t *new, dht_layout_t *old)
+dht_selfheal_layout_maximize_overlap(call_frame_t *frame, loc_t *loc,
+                                     dht_layout_t *new, dht_layout_t *old)
 {
-	int           i            = 0;
-	int           j            = 0;
-	uint32_t      curr_overlap = 0;
-	uint32_t      max_overlap  = 0;
-	int           max_overlap_idx = -1;
-	uint32_t      overlap      = 0;
-        uint32_t     *table = NULL;
-
-	dht_layout_sort_volname (old);
-	/* Now both old_layout->list[] and new_layout->list[]
-	   are match the same xlators/subvolumes. i.e,
-	   old_layout->[i] and new_layout->[i] are referring
-	   to the same subvolumes
-	*/
-
-        /* Build a table of overlaps between new[i] and old[j]. */
-        table = alloca(sizeof(overlap)*old->cnt*new->cnt);
-        if (!table) {
-                return;
-        }
-        memset(table,0,sizeof(overlap)*old->cnt*new->cnt);
-        for (i = 0; i < new->cnt; ++i) {
-                for (j = 0; j < old->cnt; ++j) {
-                        OV_ENTRY(i,j) = dht_overlap_calc(old,j,new,i);
-                }
-        }
-
-	for (i = 0; i < new->cnt; i++) {
-		if (new->list[i].err > 0) {
-			/* Subvol might be marked for decommission
-			   with EINVAL, or some other serious error
-			   marked with positive errno.
-			*/
-			continue;
-                }
-
-                max_overlap = 0;
-                max_overlap_idx = i;
-                for (j = (i + 1); j < new->cnt; ++j) {
-                        if (new->list[j].err > 0) {
-			        /* Subvol might be marked for decommission
-			        with EINVAL, or some other serious error
-			        marked with positive errno.
-			        */
-			        continue;
-                        }
-                        /* Calculate the overlap now. */
-                        curr_overlap = OV_ENTRY(i,i) + OV_ENTRY(j,j);
-                        /* Calculate the overlap after the proposed swap. */
-                        overlap = OV_ENTRY(i,j) + OV_ENTRY(j,i);
-                        /* Are we better than status quo? */
-                        if (overlap > curr_overlap) {
-                                overlap -= curr_overlap;
-                                /* Are we better than the previous choice? */
-                                if (overlap > max_overlap) {
-                                        max_overlap = overlap;
-                                        max_overlap_idx = j;
-                                }
-                        }
-                }
-
-		if (max_overlap_idx != i) {
- 			dht_layout_range_swap (new, i, max_overlap_idx);
-                        /* Need to swap the table values too. */
-                        for (j = 0; j < old->cnt; ++j) {
-                                overlap = OV_ENTRY(i,j);
-                                OV_ENTRY(i,j) = OV_ENTRY(max_overlap_idx,j);
-                                OV_ENTRY(max_overlap_idx,j) = overlap;
-                        }
-                }
-	}
+    int i = 0;
+    int j = 0;
+    uint32_t curr_overlap = 0;
+    uint32_t max_overlap = 0;
+    int max_overlap_idx = -1;
+    uint32_t overlap = 0;
+    uint32_t *table = NULL;
+
+    dht_layout_sort_volname(old);
+    /* Now both old_layout->list[] and new_layout->list[]
+       are match the same xlators/subvolumes. i.e,
+       old_layout->[i] and new_layout->[i] are referring
+       to the same subvolumes
+    */
+
+    /* Build a table of overlaps between new[i] and old[j]. */
+    table = alloca(sizeof(overlap) * old->cnt * new->cnt);
+    if (!table) {
+        return;
+    }
+    memset(table, 0, sizeof(overlap) * old->cnt * new->cnt);
+    for (i = 0; i < new->cnt; ++i) {
+        for (j = 0; j < old->cnt; ++j) {
+            OV_ENTRY(i, j) = dht_overlap_calc(old, j, new, i);
+        }
+    }
+
+    for (i = 0; i < new->cnt; i++) {
+        if (new->list[i].err > 0) {
+            /* Subvol might be marked for decommission
+               with EINVAL, or some other serious error
+               marked with positive errno.
+            */
+            continue;
+        }
+
+        max_overlap = 0;
+        max_overlap_idx = i;
+        for (j = (i + 1); j < new->cnt; ++j) {
+            if (new->list[j].err > 0) {
+                /* Subvol might be marked for decommission
+                with EINVAL, or some other serious error
+                marked with positive errno.
+                */
+                continue;
+            }
+            /* Calculate the overlap now. */
+            curr_overlap = OV_ENTRY(i, i) + OV_ENTRY(j, j);
+            /* Calculate the overlap after the proposed swap. */
+            overlap = OV_ENTRY(i, j) + OV_ENTRY(j, i);
+            /* Are we better than status quo? */
+            if (overlap > curr_overlap) {
+                overlap -= curr_overlap;
+                /* Are we better than the previous choice? */
+                if (overlap > max_overlap) {
+                    max_overlap = overlap;
+                    max_overlap_idx = j;
+                }
+            }
+        }
+
+        if (max_overlap_idx != i) {
+            dht_layout_range_swap(new, i, max_overlap_idx);
+            /* Need to swap the table values too. */
+            for (j = 0; j < old->cnt; ++j) {
+                overlap = OV_ENTRY(i, j);
+                OV_ENTRY(i, j) = OV_ENTRY(max_overlap_idx, j);
+                OV_ENTRY(max_overlap_idx, j) = overlap;
+            }
+        }
+    }
 }
 
-
 dht_layout_t *
-dht_fix_layout_of_directory (call_frame_t *frame, loc_t *loc,
-                             dht_layout_t *layout)
+dht_fix_layout_of_directory(call_frame_t *frame, loc_t *loc,
+                            dht_layout_t *layout)
 {
-        int           i                         = 0;
-        xlator_t     *this                      = NULL;
-        dht_layout_t *new_layout                = NULL;
-        dht_conf_t   *priv                      = NULL;
-        dht_local_t  *local                     = NULL;
-        uint32_t      subvol_down               = 0;
-        int           ret                       = 0;
-        gf_boolean_t  maximize_overlap          = _gf_true;
-        char          gfid[GF_UUID_BUF_SIZE]    = {0};
-
-        this  = frame->this;
-        priv  = this->private;
-        local = frame->local;
-
-        if (layout->type == DHT_HASH_TYPE_DM_USER) {
-                gf_msg_debug (THIS->name, 0, "leaving %s alone",
-                              loc->path);
-                goto done;
-        }
-
-        new_layout = dht_layout_new (this, priv->subvolume_cnt);
-        if (!new_layout) {
-                gf_uuid_unparse (loc->gfid, gfid);
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
-                        "mem allocation failed for new_layout, path:%s gfid:%s",
-                        loc->path, gfid);
-                goto done;
-        }
-
-        /* If a subvolume is down, do not re-write the layout. */
-        ret = dht_layout_anomalies (this, loc, layout, NULL, NULL, NULL,
-                                    &subvol_down, NULL, NULL);
-
-        if (subvol_down || (ret == -1)) {
-                gf_uuid_unparse (loc->gfid, gfid);
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_LAYOUT_FIX_FAILED,
-                        "Layout fix failed: %u subvolume(s) are down"
-                        ". Skipping fix layout. path:%s gfid:%s", subvol_down,
-                        loc->path, gfid);
-                GF_FREE (new_layout);
-                return NULL;
-        }
-
-        for (i = 0; i < new_layout->cnt; i++) {
-		if (layout->list[i].err != ENOSPC)
-			new_layout->list[i].err = layout->list[i].err;
-		else
-			new_layout->list[i].err = -1;
-
-		new_layout->list[i].xlator = layout->list[i].xlator;
-        }
-
-        new_layout->commit_hash = layout->commit_hash;
-
-        if (priv->du_stats) {
-                for (i = 0; i < priv->subvolume_cnt; ++i) {
-                        gf_msg (this->name, GF_LOG_DEBUG, 0,
-                                DHT_MSG_SUBVOL_INFO,
-                                "subvolume %d (%s): %u chunks, path:%s", i,
-                                priv->subvolumes[i]->name,
-                                priv->du_stats[i].chunks, loc->path);
-
-                        /* Maximize overlap if the bricks are all the same
-                         *  size.
-                         * This is probably not going to be very common on
-                         * live setups but will benefit our regression tests
-                         */
-                        if (i && (priv->du_stats[i].chunks
-                                  != priv->du_stats[0].chunks)) {
-                                maximize_overlap = _gf_false;
-                        }
-                }
-        } else {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_NO_DISK_USAGE_STATUS, "no du stats ?!?");
-        }
-
-	/* First give it a layout as though it is a new directory. This
-	   ensures rotation to kick in */
-        dht_layout_sort_volname (new_layout);
-	dht_selfheal_layout_new_directory (frame, loc, new_layout);
-
-
-        /* Maximize overlap if weighted-rebalance is disabled */
-        if (!priv->do_weighting)
-                maximize_overlap = _gf_true;
-
-	/* Now selectively re-assign ranges only when it helps */
-        if (maximize_overlap) {
-                dht_selfheal_layout_maximize_overlap (frame, loc, new_layout,
-                                                      layout);
-        }
+    int i = 0;
+    xlator_t *this = NULL;
+    dht_layout_t *new_layout = NULL;
+    dht_conf_t *priv = NULL;
+    dht_local_t *local = NULL;
+    uint32_t subvol_down = 0;
+    int ret = 0;
+    gf_boolean_t maximize_overlap = _gf_true;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    this = frame->this;
+    priv = this->private;
+    local = frame->local;
+
+    if (layout->type == DHT_HASH_TYPE_DM_USER) {
+        gf_msg_debug(THIS->name, 0, "leaving %s alone", loc->path);
+        goto done;
+    }
+
+    new_layout = dht_layout_new(this, priv->subvolume_cnt);
+    if (!new_layout) {
+        gf_uuid_unparse(loc->gfid, gfid);
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "mem allocation failed for new_layout, path:%s gfid:%s",
+               loc->path, gfid);
+        goto done;
+    }
+
+    /* If a subvolume is down, do not re-write the layout. */
+    ret = dht_layout_anomalies(this, loc, layout, NULL, NULL, NULL,
+                               &subvol_down, NULL, NULL);
+
+    if (subvol_down || (ret == -1)) {
+        gf_uuid_unparse(loc->gfid, gfid);
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_LAYOUT_FIX_FAILED,
+               "Layout fix failed: %u subvolume(s) are down"
+               ". Skipping fix layout. path:%s gfid:%s",
+               subvol_down, loc->path, gfid);
+        GF_FREE(new_layout);
+        return NULL;
+    }
+
+    for (i = 0; i < new_layout->cnt; i++) {
+        if (layout->list[i].err != ENOSPC)
+            new_layout->list[i].err = layout->list[i].err;
+        else
+            new_layout->list[i].err = -1;
+
+        new_layout->list[i].xlator = layout->list[i].xlator;
+    }
+
+    new_layout->commit_hash = layout->commit_hash;
+
+    if (priv->du_stats) {
+        for (i = 0; i < priv->subvolume_cnt; ++i) {
+            gf_msg(this->name, GF_LOG_DEBUG, 0, DHT_MSG_SUBVOL_INFO,
+                   "subvolume %d (%s): %u chunks, path:%s", i,
+                   priv->subvolumes[i]->name, priv->du_stats[i].chunks,
+                   loc->path);
+
+            /* Maximize overlap if the bricks are all the same
+             *  size.
+             * This is probably not going to be very common on
+             * live setups but will benefit our regression tests
+             */
+            if (i && (priv->du_stats[i].chunks != priv->du_stats[0].chunks)) {
+                maximize_overlap = _gf_false;
+            }
+        }
+    } else {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_NO_DISK_USAGE_STATUS,
+               "no du stats ?!?");
+    }
+
+    /* First give it a layout as though it is a new directory. This
+       ensures rotation to kick in */
+    dht_layout_sort_volname(new_layout);
+    dht_selfheal_layout_new_directory(frame, loc, new_layout);
+
+    /* Maximize overlap if weighted-rebalance is disabled */
+    if (!priv->do_weighting)
+        maximize_overlap = _gf_true;
+
+    /* Now selectively re-assign ranges only when it helps */
+    if (maximize_overlap) {
+        dht_selfheal_layout_maximize_overlap(frame, loc, new_layout, layout);
+    }
 done:
-        if (new_layout) {
-
-                /* Make sure the extra 'ref' for existing layout is removed */
-                dht_layout_unref (this, local->layout);
+    if (new_layout) {
+        /* Make sure the extra 'ref' for existing layout is removed */
+        dht_layout_unref(this, local->layout);
 
-                local->layout = new_layout;
-        }
+        local->layout = new_layout;
+    }
 
-        return local->layout;
+    return local->layout;
 }
 
-
 /*
  * Having to call this 2x for each entry in the layout is pretty horrible, but
  * that's what all of this layout-sorting nonsense gets us.
  */
 uint32_t
-dht_get_chunks_from_xl (xlator_t *parent, xlator_t *child)
+dht_get_chunks_from_xl(xlator_t *parent, xlator_t *child)
 {
-        dht_conf_t      *priv   = parent->private;
-        xlator_list_t   *trav;
-        uint32_t        index   = 0;
+    dht_conf_t *priv = parent->private;
+    xlator_list_t *trav;
+    uint32_t index = 0;
 
-        if (!priv->du_stats) {
-                return 0;
-        }
+    if (!priv->du_stats) {
+        return 0;
+    }
 
-        for (trav = parent->children; trav; trav = trav->next) {
-                if (trav->xlator == child) {
-                        return priv->du_stats[index].chunks;
-                }
-                ++index;
+    for (trav = parent->children; trav; trav = trav->next) {
+        if (trav->xlator == child) {
+            return priv->du_stats[index].chunks;
         }
+        ++index;
+    }
 
-        return 0;
+    return 0;
 }
 
-
 void
-dht_selfheal_layout_new_directory (call_frame_t *frame, loc_t *loc,
-                                   dht_layout_t *layout)
+dht_selfheal_layout_new_directory(call_frame_t *frame, loc_t *loc,
+                                  dht_layout_t *layout)
 {
-        xlator_t    *this = NULL;
-        double       chunk = 0;
-        int          i = 0;
-        uint32_t     start = 0;
-        int          bricks_to_use = 0;
-        int          err = 0;
-        int          start_subvol = 0;
-        uint32_t     curr_size;
-        uint32_t     range_size;
-        uint64_t     total_size = 0;
-        int          real_i;
-        dht_conf_t   *priv;
-        gf_boolean_t weight_by_size;
-        int          bricks_used = 0;
-
-        this = frame->this;
-        priv = this->private;
-        weight_by_size = priv->do_weighting;
-
-        bricks_to_use = dht_get_layout_count (this, layout, 1);
-        GF_ASSERT (bricks_to_use > 0);
-
-        bricks_used = 0;
-        for (i = 0; i < layout->cnt; ++i) {
-                err = layout->list[i].err;
-                if ((err != -1) && (err != ENOENT)) {
-                        continue;
-                }
-                curr_size = dht_get_chunks_from_xl (this,
-                                                    layout->list[i].xlator);
-                if (!curr_size) {
-                        weight_by_size = _gf_false;
-                        break;
-                }
-                total_size += curr_size;
-                if (++bricks_used >= bricks_to_use) {
-                        break;
-                }
-        }
-
-        if (weight_by_size && total_size) {
-                /* We know total_size is not zero. */
-                chunk = ((double) 0xffffffff) / ((double) total_size);
-                gf_msg_debug (this->name, 0,
-                              "chunk size = 0xffffffff / %lu = %f",
-                              total_size, chunk);
-        }
-        else {
-                weight_by_size = _gf_false;
-                chunk = ((unsigned long) 0xffffffff) / bricks_to_use;
+    xlator_t *this = NULL;
+    double chunk = 0;
+    int i = 0;
+    uint32_t start = 0;
+    int bricks_to_use = 0;
+    int err = 0;
+    int start_subvol = 0;
+    uint32_t curr_size;
+    uint32_t range_size;
+    uint64_t total_size = 0;
+    int real_i;
+    dht_conf_t *priv;
+    gf_boolean_t weight_by_size;
+    int bricks_used = 0;
+
+    this = frame->this;
+    priv = this->private;
+    weight_by_size = priv->do_weighting;
+
+    bricks_to_use = dht_get_layout_count(this, layout, 1);
+    GF_ASSERT(bricks_to_use > 0);
+
+    bricks_used = 0;
+    for (i = 0; i < layout->cnt; ++i) {
+        err = layout->list[i].err;
+        if ((err != -1) && (err != ENOENT)) {
+            continue;
+        }
+        curr_size = dht_get_chunks_from_xl(this, layout->list[i].xlator);
+        if (!curr_size) {
+            weight_by_size = _gf_false;
+            break;
+        }
+        total_size += curr_size;
+        if (++bricks_used >= bricks_to_use) {
+            break;
+        }
+    }
+
+    if (weight_by_size && total_size) {
+        /* We know total_size is not zero. */
+        chunk = ((double)0xffffffff) / ((double)total_size);
+        gf_msg_debug(this->name, 0, "chunk size = 0xffffffff / %lu = %f",
+                     total_size, chunk);
+    } else {
+        weight_by_size = _gf_false;
+        chunk = ((unsigned long)0xffffffff) / bricks_to_use;
+    }
+
+    start_subvol = dht_selfheal_layout_alloc_start(this, loc, layout);
+
+    /* clear out the range, as we are re-computing here */
+    DHT_RESET_LAYOUT_RANGE(layout);
+
+    /*
+     * OK, what's this "real_i" stuff about?  This used to be two loops -
+     * from start_subvol to layout->cnt-1, then from 0 to start_subvol-1.
+     * That way is practically an open invitation to bugs when only one
+     * of the loops is updated.  Using real_i and modulo operators to make
+     * it one loop avoids this problem.  Remember, folks: it's everyone's
+     * responsibility to help stamp out copy/paste abuse.
+     */
+    bricks_used = 0;
+    for (real_i = 0; real_i < layout->cnt; real_i++) {
+        i = (real_i + start_subvol) % layout->cnt;
+        err = layout->list[i].err;
+        if ((err != -1) && (err != ENOENT)) {
+            continue;
+        }
+        if (weight_by_size) {
+            curr_size = dht_get_chunks_from_xl(this, layout->list[i].xlator);
+            if (!curr_size) {
+                continue;
+            }
+        } else {
+            curr_size = 1;
         }
-
-        start_subvol = dht_selfheal_layout_alloc_start (this, loc, layout);
-
-        /* clear out the range, as we are re-computing here */
-        DHT_RESET_LAYOUT_RANGE (layout);
-
-        /*
-         * OK, what's this "real_i" stuff about?  This used to be two loops -
-         * from start_subvol to layout->cnt-1, then from 0 to start_subvol-1.
-         * That way is practically an open invitation to bugs when only one
-         * of the loops is updated.  Using real_i and modulo operators to make
-         * it one loop avoids this problem.  Remember, folks: it's everyone's
-         * responsibility to help stamp out copy/paste abuse.
-         */
-        bricks_used = 0;
-        for (real_i = 0; real_i < layout->cnt; real_i++) {
-                i = (real_i + start_subvol) % layout->cnt;
-                err = layout->list[i].err;
-                if ((err != -1) && (err != ENOENT)) {
-                        continue;
-                }
-                if (weight_by_size) {
-                        curr_size = dht_get_chunks_from_xl (this,
-                                layout->list[i].xlator);
-                        if (!curr_size) {
-                                continue;
-                        }
-                }
-                else {
-                        curr_size = 1;
-                }
-                range_size = chunk * curr_size;
-                gf_msg_debug (this->name, 0,
-                              "assigning range size 0x%x to %s",
-                              range_size,
-                              layout->list[i].xlator->name);
-                DHT_SET_LAYOUT_RANGE(layout, i, start, range_size,
-                                     loc->path);
-                if (++bricks_used >= bricks_to_use) {
-                        layout->list[i].stop = 0xffffffff;
-                        goto done;
-                }
-                start += range_size;
+        range_size = chunk * curr_size;
+        gf_msg_debug(this->name, 0, "assigning range size 0x%x to %s",
+                     range_size, layout->list[i].xlator->name);
+        DHT_SET_LAYOUT_RANGE(layout, i, start, range_size, loc->path);
+        if (++bricks_used >= bricks_to_use) {
+            layout->list[i].stop = 0xffffffff;
+            goto done;
         }
+        start += range_size;
+    }
 
 done:
-        return;
+    return;
 }
 
 int
-dht_selfheal_dir_getafix (call_frame_t *frame, loc_t *loc,
-                          dht_layout_t *layout)
+dht_selfheal_dir_getafix(call_frame_t *frame, loc_t *loc, dht_layout_t *layout)
 {
-        dht_local_t *local = NULL;
-        uint32_t     holes = 0;
-        int          ret = -1;
-        int          i = -1;
-        uint32_t     overlaps = 0;
-
-        local = frame->local;
-
-        holes = local->selfheal.hole_cnt;
-        overlaps = local->selfheal.overlaps_cnt;
-
-        if (holes || overlaps) {
-                /* If the layout has anomalies which would change the hash
-                 * ranges, then we need to reset the commit_hash for this
-                 * directory, as the layout would change and things may not
-                 * be in place as expected */
-                layout->commit_hash = DHT_LAYOUT_HASH_INVALID;
-                dht_selfheal_layout_new_directory (frame, loc, layout);
-                ret = 0;
-        }
+    dht_local_t *local = NULL;
+    uint32_t holes = 0;
+    int ret = -1;
+    int i = -1;
+    uint32_t overlaps = 0;
+
+    local = frame->local;
+
+    holes = local->selfheal.hole_cnt;
+    overlaps = local->selfheal.overlaps_cnt;
+
+    if (holes || overlaps) {
+        /* If the layout has anomalies which would change the hash
+         * ranges, then we need to reset the commit_hash for this
+         * directory, as the layout would change and things may not
+         * be in place as expected */
+        layout->commit_hash = DHT_LAYOUT_HASH_INVALID;
+        dht_selfheal_layout_new_directory(frame, loc, layout);
+        ret = 0;
+    }
 
-        for (i = 0; i < layout->cnt; i++) {
-                /* directory not present */
-                if (layout->list[i].err == ENOENT) {
-                        ret = 0;
-                        break;
-                }
+    for (i = 0; i < layout->cnt; i++) {
+        /* directory not present */
+        if (layout->list[i].err == ENOENT) {
+            ret = 0;
+            break;
         }
+    }
 
-        /* TODO: give a fix to these non-virgins */
+    /* TODO: give a fix to these non-virgins */
 
-        return ret;
+    return ret;
 }
 
 int
-dht_selfheal_new_directory (call_frame_t *frame,
-                            dht_selfheal_dir_cbk_t dir_cbk,
-                            dht_layout_t *layout)
+dht_selfheal_new_directory(call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
+                           dht_layout_t *layout)
 {
-        dht_local_t *local                   = NULL;
-        int          ret                     = 0;
-        inode_t     *linked_inode            = NULL, *inode = NULL;
-        loc_t       *loc                     = NULL;
-        char         pgfid[GF_UUID_BUF_SIZE] = {0};
-        char         gfid[GF_UUID_BUF_SIZE]  = {0};
-        int32_t      op_errno                = EIO;
-
-        local = frame->local;
-
-        loc = &local->loc;
-
-        gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
-        gf_uuid_unparse(loc->parent->gfid, pgfid);
-
-        linked_inode = inode_link (loc->inode, loc->parent, loc->name,
-                                   &local->stbuf);
-        if (!linked_inode) {
-                gf_msg (frame->this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_SELFHEAL_FAILED,
-                        "linking inode failed (%s/%s) => %s",
-                        pgfid, loc->name, gfid);
-                ret = -1;
-                goto out;
-        }
-
-        inode = loc->inode;
-        loc->inode = linked_inode;
-        inode_unref (inode);
-
-        local->selfheal.dir_cbk = dir_cbk;
-        local->selfheal.layout = dht_layout_ref (frame->this, layout);
-
-        dht_layout_sort_volname (layout);
-        dht_selfheal_layout_new_directory (frame, &local->loc, layout);
-
-        op_errno = ENOMEM;
-        ret = dht_selfheal_layout_lock (frame, layout, _gf_true,
-                                        dht_selfheal_dir_xattr,
-                                        dht_should_heal_layout);
+    dht_local_t *local = NULL;
+    int ret = 0;
+    inode_t *linked_inode = NULL, *inode = NULL;
+    loc_t *loc = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    int32_t op_errno = EIO;
+
+    local = frame->local;
+
+    loc = &local->loc;
+
+    gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
+    gf_uuid_unparse(loc->parent->gfid, pgfid);
+
+    linked_inode = inode_link(loc->inode, loc->parent, loc->name,
+                              &local->stbuf);
+    if (!linked_inode) {
+        gf_msg(frame->this->name, GF_LOG_WARNING, 0,
+               DHT_MSG_DIR_SELFHEAL_FAILED,
+               "linking inode failed (%s/%s) => %s", pgfid, loc->name, gfid);
+        ret = -1;
+        goto out;
+    }
+
+    inode = loc->inode;
+    loc->inode = linked_inode;
+    inode_unref(inode);
+
+    local->selfheal.dir_cbk = dir_cbk;
+    local->selfheal.layout = dht_layout_ref(frame->this, layout);
+
+    dht_layout_sort_volname(layout);
+    dht_selfheal_layout_new_directory(frame, &local->loc, layout);
+
+    op_errno = ENOMEM;
+    ret = dht_selfheal_layout_lock(frame, layout, _gf_true,
+                                   dht_selfheal_dir_xattr,
+                                   dht_should_heal_layout);
 
 out:
-        if (ret < 0) {
-                dir_cbk (frame, NULL, frame->this, -1, op_errno, NULL);
-        }
+    if (ret < 0) {
+        dir_cbk(frame, NULL, frame->this, -1, op_errno, NULL);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_fix_directory_layout (call_frame_t *frame,
-                          dht_selfheal_dir_cbk_t dir_cbk,
-                          dht_layout_t *layout)
+dht_fix_directory_layout(call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
+                         dht_layout_t *layout)
 {
-        dht_local_t  *local      = NULL;
-        dht_layout_t *tmp_layout = NULL;
-        int           ret        = 0;
+    dht_local_t *local = NULL;
+    dht_layout_t *tmp_layout = NULL;
+    int ret = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        local->selfheal.dir_cbk = dir_cbk;
-        local->selfheal.layout = dht_layout_ref (frame->this, layout);
+    local->selfheal.dir_cbk = dir_cbk;
+    local->selfheal.layout = dht_layout_ref(frame->this, layout);
 
-        /* No layout sorting required here */
-        tmp_layout = dht_fix_layout_of_directory (frame, &local->loc, layout);
-        if (!tmp_layout) {
-                return -1;
-        }
+    /* No layout sorting required here */
+    tmp_layout = dht_fix_layout_of_directory(frame, &local->loc, layout);
+    if (!tmp_layout) {
+        return -1;
+    }
 
-        ret = dht_selfheal_layout_lock (frame, tmp_layout, _gf_false,
-                                        dht_fix_dir_xattr,
-                                        dht_should_fix_layout);
+    ret = dht_selfheal_layout_lock(frame, tmp_layout, _gf_false,
+                                   dht_fix_dir_xattr, dht_should_fix_layout);
 
-        return ret;
+    return ret;
 }
 
-
 int
-dht_selfheal_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
-                        loc_t *loc, dht_layout_t *layout)
+dht_selfheal_directory(call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
+                       loc_t *loc, dht_layout_t *layout)
 {
-        dht_local_t *local                   = NULL;
-        uint32_t     down                    = 0;
-        uint32_t     misc                    = 0;
-        int          ret                     = 0;
-        xlator_t    *this                    = NULL;
-        char         pgfid[GF_UUID_BUF_SIZE] = {0};
-        char         gfid[GF_UUID_BUF_SIZE]  = {0};
-        inode_t     *linked_inode            = NULL, *inode = NULL;
-
-        local = frame->local;
-        this = frame->this;
-
-        local->selfheal.dir_cbk = dir_cbk;
-        local->selfheal.layout = dht_layout_ref (this, layout);
-
-        if (!__is_root_gfid (local->stbuf.ia_gfid)) {
-                gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
-                gf_uuid_unparse(loc->parent->gfid, pgfid);
-
-                linked_inode = inode_link (loc->inode, loc->parent, loc->name,
-                                           &local->stbuf);
-                if (!linked_inode) {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DIR_SELFHEAL_FAILED,
-                                "linking inode failed (%s/%s) => %s",
-                                pgfid, loc->name, gfid);
-                        ret = 0;
-                        goto sorry_no_fix;
-                }
+    dht_local_t *local = NULL;
+    uint32_t down = 0;
+    uint32_t misc = 0;
+    int ret = 0;
+    xlator_t *this = NULL;
+    char pgfid[GF_UUID_BUF_SIZE] = {0};
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    inode_t *linked_inode = NULL, *inode = NULL;
+
+    local = frame->local;
+    this = frame->this;
+
+    local->selfheal.dir_cbk = dir_cbk;
+    local->selfheal.layout = dht_layout_ref(this, layout);
+
+    if (!__is_root_gfid(local->stbuf.ia_gfid)) {
+        gf_uuid_unparse(local->stbuf.ia_gfid, gfid);
+        gf_uuid_unparse(loc->parent->gfid, pgfid);
 
-                inode = loc->inode;
-                loc->inode = linked_inode;
-                inode_unref (inode);
+        linked_inode = inode_link(loc->inode, loc->parent, loc->name,
+                                  &local->stbuf);
+        if (!linked_inode) {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_SELFHEAL_FAILED,
+                   "linking inode failed (%s/%s) => %s", pgfid, loc->name,
+                   gfid);
+            ret = 0;
+            goto sorry_no_fix;
         }
 
-        dht_layout_anomalies (this, loc, layout,
-                              &local->selfheal.hole_cnt,
-                              &local->selfheal.overlaps_cnt,
-                              &local->selfheal.missing_cnt,
-                              &local->selfheal.down,
-                              &local->selfheal.misc, NULL);
-
-        down     = local->selfheal.down;
-        misc     = local->selfheal.misc;
-
-        if (down) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_SELFHEAL_FAILED,
-                        "Directory selfheal failed: %d subvolumes down."
-                        "Not fixing. path = %s, gfid = %s",
-                        down, loc->path, gfid);
-                ret = 0;
-                goto sorry_no_fix;
-        }
+        inode = loc->inode;
+        loc->inode = linked_inode;
+        inode_unref(inode);
+    }
+
+    dht_layout_anomalies(this, loc, layout, &local->selfheal.hole_cnt,
+                         &local->selfheal.overlaps_cnt,
+                         &local->selfheal.missing_cnt, &local->selfheal.down,
+                         &local->selfheal.misc, NULL);
+
+    down = local->selfheal.down;
+    misc = local->selfheal.misc;
+
+    if (down) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_SELFHEAL_FAILED,
+               "Directory selfheal failed: %d subvolumes down."
+               "Not fixing. path = %s, gfid = %s",
+               down, loc->path, gfid);
+        ret = 0;
+        goto sorry_no_fix;
+    }
 
-        if (misc) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_SELFHEAL_FAILED,
-                        "Directory selfheal failed : %d subvolumes "
-                        "have unrecoverable errors. path = %s, gfid = %s",
-                        misc, loc->path, gfid);
+    if (misc) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_SELFHEAL_FAILED,
+               "Directory selfheal failed : %d subvolumes "
+               "have unrecoverable errors. path = %s, gfid = %s",
+               misc, loc->path, gfid);
 
-                ret = 0;
-                goto sorry_no_fix;
-        }
+        ret = 0;
+        goto sorry_no_fix;
+    }
 
-        dht_layout_sort_volname (layout);
-        local->heal_layout = _gf_true;
+    dht_layout_sort_volname(layout);
+    local->heal_layout = _gf_true;
 
-        /* Ignore return value as it can be inferred from result of
-         * dht_layout_anomalies
-         */
-        dht_selfheal_dir_getafix (frame, loc, layout);
+    /* Ignore return value as it can be inferred from result of
+     * dht_layout_anomalies
+     */
+    dht_selfheal_dir_getafix(frame, loc, layout);
 
-        if (!(local->selfheal.hole_cnt || local->selfheal.overlaps_cnt ||
-              local->selfheal.missing_cnt)) {
-                local->heal_layout = _gf_false;
-        }
+    if (!(local->selfheal.hole_cnt || local->selfheal.overlaps_cnt ||
+          local->selfheal.missing_cnt)) {
+        local->heal_layout = _gf_false;
+    }
 
-        ret = dht_selfheal_dir_mkdir (frame, loc, layout, 0);
-        if (ret < 0) {
-                ret = 0;
-                goto sorry_no_fix;
-        }
+    ret = dht_selfheal_dir_mkdir(frame, loc, layout, 0);
+    if (ret < 0) {
+        ret = 0;
+        goto sorry_no_fix;
+    }
 
-        return 0;
+    return 0;
 
 sorry_no_fix:
-        /* TODO: need to put appropriate local->op_errno */
-        dht_selfheal_dir_finish (frame, this, ret, 1);
+    /* TODO: need to put appropriate local->op_errno */
+    dht_selfheal_dir_finish(frame, this, ret, 1);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_selfheal_restore (call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
-                      loc_t *loc, dht_layout_t *layout)
+dht_selfheal_restore(call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
+                     loc_t *loc, dht_layout_t *layout)
 {
-        int          ret = 0;
-        dht_local_t *local    = NULL;
+    int ret = 0;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        local->selfheal.dir_cbk = dir_cbk;
-        local->selfheal.layout = dht_layout_ref (frame->this, layout);
+    local->selfheal.dir_cbk = dir_cbk;
+    local->selfheal.layout = dht_layout_ref(frame->this, layout);
 
-        ret = dht_selfheal_dir_mkdir (frame, loc, layout, 1);
+    ret = dht_selfheal_dir_mkdir(frame, loc, layout, 1);
 
-        return ret;
+    return ret;
 }
 
 int
-dht_dir_heal_xattrs (void *data)
+dht_dir_heal_xattrs(void *data)
 {
-        call_frame_t    *frame          = NULL;
-        dht_local_t     *local          = NULL;
-        xlator_t        *subvol         = NULL;
-        xlator_t        *mds_subvol     = NULL;
-        xlator_t        *this           = NULL;
-        dht_conf_t      *conf           = NULL;
-        dict_t          *user_xattr     = NULL;
-        dict_t          *internal_xattr = NULL;
-        dict_t          *mds_xattr   = NULL;
-        dict_t          *xdata          = NULL;
-        int              call_cnt       = 0;
-        int              ret            = -1;
-        int              uret           = 0;
-        int              uflag          = 0;
-        int              i              = 0;
-        int              xattr_hashed   = 0;
-        char     gfid[GF_UUID_BUF_SIZE] = {0};
-        int32_t    allzero[1]           = {0};
-
-        GF_VALIDATE_OR_GOTO ("dht", data, out);
-
-        frame = data;
-        local = frame->local;
-        this = frame->this;
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, local, out);
-        mds_subvol = local->mds_subvol;
-        conf = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, out);
-        gf_uuid_unparse(local->loc.gfid, gfid);
-
-        if (!mds_subvol) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                        "No mds subvol for %s gfid = %s",
-                        local->loc.path, gfid);
-                goto out;
-        }
-
-        if ((local->loc.inode && gf_uuid_is_null (local->loc.inode->gfid)) ||
-            gf_uuid_is_null (local->loc.gfid)) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                        "No gfid present so skip heal for path %s gfid = %s",
-                        local->loc.path, gfid);
-                goto out;
-        }
-
-        internal_xattr = dict_new ();
-        if (!internal_xattr) {
-                gf_msg (this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
-                        "dictionary creation failed");
-                goto out;
-        }
-        xdata = dict_new ();
-        if (!xdata) {
-                gf_msg (this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
-                        "dictionary creation failed");
-                goto out;
-        }
-
-        call_cnt = conf->subvolume_cnt;
-
-        user_xattr = dict_new ();
-        if (!user_xattr) {
-                gf_msg (this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
-                        "dictionary creation failed");
-                goto out;
-        }
-
-        ret = syncop_listxattr (local->mds_subvol, &local->loc,
-                                &mds_xattr, NULL, NULL);
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                        "failed to list xattrs for "
-                        "%s: on %s ",
-                        local->loc.path, local->mds_subvol->name);
-        }
-
-        if (!mds_xattr)
-                goto out;
-
-        dht_dir_set_heal_xattr (this, local, user_xattr, mds_xattr,
-                                &uret, &uflag);
-
-        /* To set quota related xattr need to set GLUSTERFS_INTERNAL_FOP_KEY
-         * key value to 1
-         */
-        if (dict_get (user_xattr, QUOTA_LIMIT_KEY) ||
-            dict_get (user_xattr, QUOTA_LIMIT_OBJECTS_KEY)) {
-                ret = dict_set_int32 (xdata, GLUSTERFS_INTERNAL_FOP_KEY, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dictionary value: key = %s,"
-                                " path = %s", GLUSTERFS_INTERNAL_FOP_KEY,
-                                 local->loc.path);
-                        goto out;
-                }
-        }
-        if (uret <= 0 && !uflag)
-                goto out;
-
-        for (i = 0; i < call_cnt; i++) {
-                subvol = conf->subvolumes[i];
-                if (subvol == mds_subvol)
-                        continue;
-                if (uret || uflag) {
-                        ret = syncop_setxattr (subvol, &local->loc, user_xattr,
-                                               0, xdata, NULL);
-                        if (ret) {
-                                xattr_hashed = 1;
-                                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                        "Directory xattr heal failed. Failed to set"
-                                        "user xattr on path %s on "
-                                        "subvol %s, gfid = %s ",
-                                        local->loc.path, subvol->name, gfid);
-                        }
-                }
-        }
-        /* After heal all custom xattr reset internal MDS xattr to 0 */
-        if (!xattr_hashed) {
-                ret = dht_dict_set_array (internal_xattr,
-                                          conf->mds_xattr_key,
-                                          allzero, 1);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dictionary value:key = %s for "
-                                "path %s", conf->mds_xattr_key,
-                                local->loc.path);
-                        goto out;
-                }
-                ret = syncop_setxattr (mds_subvol, &local->loc, internal_xattr,
-                                       0, NULL, NULL);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_DIR_XATTR_HEAL_FAILED,
-                                "Failed to reset internal xattr "
-                                "on path %s on subvol %s"
-                                "gfid = %s ", local->loc.path,
-                                mds_subvol->name, gfid);
-                }
+    call_frame_t *frame = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *mds_subvol = NULL;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    dict_t *user_xattr = NULL;
+    dict_t *internal_xattr = NULL;
+    dict_t *mds_xattr = NULL;
+    dict_t *xdata = NULL;
+    int call_cnt = 0;
+    int ret = -1;
+    int uret = 0;
+    int uflag = 0;
+    int i = 0;
+    int xattr_hashed = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+    int32_t allzero[1] = {0};
+
+    GF_VALIDATE_OR_GOTO("dht", data, out);
+
+    frame = data;
+    local = frame->local;
+    this = frame->this;
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, local, out);
+    mds_subvol = local->mds_subvol;
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, out);
+    gf_uuid_unparse(local->loc.gfid, gfid);
+
+    if (!mds_subvol) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_XATTR_HEAL_FAILED,
+               "No mds subvol for %s gfid = %s", local->loc.path, gfid);
+        goto out;
+    }
+
+    if ((local->loc.inode && gf_uuid_is_null(local->loc.inode->gfid)) ||
+        gf_uuid_is_null(local->loc.gfid)) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_XATTR_HEAL_FAILED,
+               "No gfid present so skip heal for path %s gfid = %s",
+               local->loc.path, gfid);
+        goto out;
+    }
+
+    internal_xattr = dict_new();
+    if (!internal_xattr) {
+        gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
+               "dictionary creation failed");
+        goto out;
+    }
+    xdata = dict_new();
+    if (!xdata) {
+        gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
+               "dictionary creation failed");
+        goto out;
+    }
+
+    call_cnt = conf->subvolume_cnt;
+
+    user_xattr = dict_new();
+    if (!user_xattr) {
+        gf_msg(this->name, GF_LOG_ERROR, DHT_MSG_NO_MEMORY, 0,
+               "dictionary creation failed");
+        goto out;
+    }
+
+    ret = syncop_listxattr(local->mds_subvol, &local->loc, &mds_xattr, NULL,
+                           NULL);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_DIR_XATTR_HEAL_FAILED,
+               "failed to list xattrs for "
+               "%s: on %s ",
+               local->loc.path, local->mds_subvol->name);
+    }
+
+    if (!mds_xattr)
+        goto out;
+
+    dht_dir_set_heal_xattr(this, local, user_xattr, mds_xattr, &uret, &uflag);
+
+    /* To set quota related xattr need to set GLUSTERFS_INTERNAL_FOP_KEY
+     * key value to 1
+     */
+    if (dict_get(user_xattr, QUOTA_LIMIT_KEY) ||
+        dict_get(user_xattr, QUOTA_LIMIT_OBJECTS_KEY)) {
+        ret = dict_set_int32(xdata, GLUSTERFS_INTERNAL_FOP_KEY, 1);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dictionary value: key = %s,"
+                   " path = %s",
+                   GLUSTERFS_INTERNAL_FOP_KEY, local->loc.path);
+            goto out;
+        }
+    }
+    if (uret <= 0 && !uflag)
+        goto out;
+
+    for (i = 0; i < call_cnt; i++) {
+        subvol = conf->subvolumes[i];
+        if (subvol == mds_subvol)
+            continue;
+        if (uret || uflag) {
+            ret = syncop_setxattr(subvol, &local->loc, user_xattr, 0, xdata,
+                                  NULL);
+            if (ret) {
+                xattr_hashed = 1;
+                gf_msg(this->name, GF_LOG_ERROR, -ret,
+                       DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                       "Directory xattr heal failed. Failed to set"
+                       "user xattr on path %s on "
+                       "subvol %s, gfid = %s ",
+                       local->loc.path, subvol->name, gfid);
+            }
+        }
+    }
+    /* After heal all custom xattr reset internal MDS xattr to 0 */
+    if (!xattr_hashed) {
+        ret = dht_dict_set_array(internal_xattr, conf->mds_xattr_key, allzero,
+                                 1);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_WARNING, ENOMEM, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dictionary value:key = %s for "
+                   "path %s",
+                   conf->mds_xattr_key, local->loc.path);
+            goto out;
+        }
+        ret = syncop_setxattr(mds_subvol, &local->loc, internal_xattr, 0, NULL,
+                              NULL);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, -ret,
+                   DHT_MSG_DIR_XATTR_HEAL_FAILED,
+                   "Failed to reset internal xattr "
+                   "on path %s on subvol %s"
+                   "gfid = %s ",
+                   local->loc.path, mds_subvol->name, gfid);
         }
+    }
 
 out:
-        if (user_xattr)
-                dict_unref (user_xattr);
-        if (mds_xattr)
-                dict_unref (mds_xattr);
-        if (internal_xattr)
-                dict_unref (internal_xattr);
-        if (xdata)
-                dict_unref (xdata);
-        return 0;
+    if (user_xattr)
+        dict_unref(user_xattr);
+    if (mds_xattr)
+        dict_unref(mds_xattr);
+    if (internal_xattr)
+        dict_unref(internal_xattr);
+    if (xdata)
+        dict_unref(xdata);
+    return 0;
 }
 
-
 int
-dht_dir_heal_xattrs_done (int ret, call_frame_t *sync_frame, void *data)
+dht_dir_heal_xattrs_done(int ret, call_frame_t *sync_frame, void *data)
 {
-        DHT_STACK_DESTROY (sync_frame);
-        return 0;
+    DHT_STACK_DESTROY(sync_frame);
+    return 0;
 }
 
-
 int
-dht_dir_attr_heal (void *data)
+dht_dir_attr_heal(void *data)
 {
-        call_frame_t    *frame      = NULL;
-        dht_local_t     *local      = NULL;
-        xlator_t        *subvol     = NULL;
-        xlator_t        *mds_subvol = NULL;
-        xlator_t        *this       = NULL;
-        dht_conf_t      *conf  = NULL;
-        int              call_cnt = 0;
-        int              ret   = -1;
-        int              i     = 0;
-        char             gfid[GF_UUID_BUF_SIZE] = {0};
-
-
-        GF_VALIDATE_OR_GOTO ("dht", data, out);
-
-        frame = data;
-        local = frame->local;
-        mds_subvol = local->mds_subvol;
-        this = frame->this;
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", local, out);
-        conf = this->private;
-        GF_VALIDATE_OR_GOTO ("dht", conf, out);
-
-        call_cnt = conf->subvolume_cnt;
-
-        if (!__is_root_gfid (local->stbuf.ia_gfid) && (!mds_subvol)) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DIR_ATTR_HEAL_FAILED,
-                        "No mds subvol for %s gfid = %s",
-                        local->loc.path, gfid);
-                goto out;
-        }
-
-        if (!__is_root_gfid (local->stbuf.ia_gfid)) {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (conf->subvolumes[i] ==  mds_subvol) {
-                                if (!conf->subvolume_status[i]) {
-                                        gf_msg (this->name, GF_LOG_ERROR,
-                                                0,  DHT_MSG_HASHED_SUBVOL_DOWN,
-                                                "mds subvol is down for path "
-                                                " %s gfid is %s Unable to set xattr " ,
-                                                local->loc.path, gfid);
-                                        goto out;
-                                }
-                        }
-                }
+    call_frame_t *frame = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *mds_subvol = NULL;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    int call_cnt = 0;
+    int ret = -1;
+    int i = 0;
+    char gfid[GF_UUID_BUF_SIZE] = {0};
+
+    GF_VALIDATE_OR_GOTO("dht", data, out);
+
+    frame = data;
+    local = frame->local;
+    mds_subvol = local->mds_subvol;
+    this = frame->this;
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", local, out);
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO("dht", conf, out);
+
+    call_cnt = conf->subvolume_cnt;
+
+    if (!__is_root_gfid(local->stbuf.ia_gfid) && (!mds_subvol)) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DIR_ATTR_HEAL_FAILED,
+               "No mds subvol for %s gfid = %s", local->loc.path, gfid);
+        goto out;
+    }
+
+    if (!__is_root_gfid(local->stbuf.ia_gfid)) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->subvolumes[i] == mds_subvol) {
+                if (!conf->subvolume_status[i]) {
+                    gf_msg(this->name, GF_LOG_ERROR, 0,
+                           DHT_MSG_HASHED_SUBVOL_DOWN,
+                           "mds subvol is down for path "
+                           " %s gfid is %s Unable to set xattr ",
+                           local->loc.path, gfid);
+                    goto out;
+                }
+            }
+        }
+    }
+
+    for (i = 0; i < call_cnt; i++) {
+        subvol = conf->subvolumes[i];
+        if (!subvol || subvol == mds_subvol)
+            continue;
+        if (__is_root_gfid(local->stbuf.ia_gfid)) {
+            ret = syncop_setattr(
+                subvol, &local->loc, &local->stbuf,
+                (GF_SET_ATTR_UID | GF_SET_ATTR_GID | GF_SET_ATTR_MODE), NULL,
+                NULL, NULL, NULL);
+        } else {
+            ret = syncop_setattr(
+                subvol, &local->loc, &local->mds_stbuf,
+                (GF_SET_ATTR_UID | GF_SET_ATTR_GID | GF_SET_ATTR_MODE), NULL,
+                NULL, NULL, NULL);
         }
 
-        for (i = 0; i < call_cnt; i++) {
-                subvol = conf->subvolumes[i];
-                if (!subvol || subvol == mds_subvol)
-                        continue;
-                if (__is_root_gfid (local->stbuf.ia_gfid)) {
-                        ret = syncop_setattr (subvol, &local->loc, &local->stbuf,
-                                              (GF_SET_ATTR_UID | GF_SET_ATTR_GID | GF_SET_ATTR_MODE),
-                                              NULL, NULL, NULL, NULL);
-                } else {
-                        ret = syncop_setattr (subvol, &local->loc, &local->mds_stbuf,
-                                              (GF_SET_ATTR_UID | GF_SET_ATTR_GID | GF_SET_ATTR_MODE),
-                                              NULL, NULL, NULL, NULL);
-                }
-
-                if (ret) {
-                        gf_uuid_unparse(local->loc.gfid, gfid);
+        if (ret) {
+            gf_uuid_unparse(local->loc.gfid, gfid);
 
-                        gf_msg (this->name, GF_LOG_ERROR, -ret,
-                                DHT_MSG_DIR_ATTR_HEAL_FAILED,
-                                "Directory attr heal failed. Failed to set"
-                                " uid/gid on path %s on subvol %s, gfid = %s ",
-                                local->loc.path, subvol->name, gfid);
-                }
+            gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_DIR_ATTR_HEAL_FAILED,
+                   "Directory attr heal failed. Failed to set"
+                   " uid/gid on path %s on subvol %s, gfid = %s ",
+                   local->loc.path, subvol->name, gfid);
         }
+    }
 out:
-        return 0;
+    return 0;
 }
 
 int
-dht_dir_attr_heal_done (int ret, call_frame_t *sync_frame, void *data)
+dht_dir_attr_heal_done(int ret, call_frame_t *sync_frame, void *data)
 {
-        DHT_STACK_DESTROY (sync_frame);
-        return 0;
+    DHT_STACK_DESTROY(sync_frame);
+    return 0;
 }
 
 /* EXIT: dht_update_commit_hash_for_layout */
 int
-dht_update_commit_hash_for_layout_done (call_frame_t *frame, void *cookie,
-                       xlator_t *this, int32_t op_ret, int32_t op_errno,
-                       dict_t *xdata)
+dht_update_commit_hash_for_layout_done(call_frame_t *frame, void *cookie,
+                                       xlator_t *this, int32_t op_ret,
+                                       int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        /* preserve oldest error */
-        if (op_ret && !local->op_ret) {
-                local->op_ret = op_ret;
-                local->op_errno = op_errno;
-        }
+    /* preserve oldest error */
+    if (op_ret && !local->op_ret) {
+        local->op_ret = op_ret;
+        local->op_errno = op_errno;
+    }
 
-        DHT_STACK_UNWIND (setxattr, frame, local->op_ret,
-                          local->op_errno, NULL);
+    DHT_STACK_UNWIND(setxattr, frame, local->op_ret, local->op_errno, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-dht_update_commit_hash_for_layout_unlock (call_frame_t *frame, xlator_t *this)
+dht_update_commit_hash_for_layout_unlock(call_frame_t *frame, xlator_t *this)
 {
-        dht_local_t  *local = NULL;
-        int ret = 0;
+    dht_local_t *local = NULL;
+    int ret = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        ret = dht_unlock_inodelk (frame, local->lock[0].layout.my_layout.locks,
-                                   local->lock[0].layout.my_layout.lk_count,
-                                   dht_update_commit_hash_for_layout_done);
-        if (ret < 0) {
-                /* preserve oldest error, just ... */
-                if (!local->op_ret) {
-                        local->op_errno = errno;
-                        local->op_ret = -1;
-                }
+    ret = dht_unlock_inodelk(frame, local->lock[0].layout.my_layout.locks,
+                             local->lock[0].layout.my_layout.lk_count,
+                             dht_update_commit_hash_for_layout_done);
+    if (ret < 0) {
+        /* preserve oldest error, just ... */
+        if (!local->op_ret) {
+            local->op_errno = errno;
+            local->op_ret = -1;
+        }
 
-                gf_msg (this->name, GF_LOG_WARNING, errno,
-                        DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                        "Winding unlock failed: stale locks left on brick"
-                        " %s", local->loc.path);
+        gf_msg(this->name, GF_LOG_WARNING, errno,
+               DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+               "Winding unlock failed: stale locks left on brick"
+               " %s",
+               local->loc.path);
 
-                dht_update_commit_hash_for_layout_done (frame, NULL, this,
-                                                        0, 0, NULL);
-        }
+        dht_update_commit_hash_for_layout_done(frame, NULL, this, 0, 0, NULL);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_update_commit_hash_for_layout_cbk (call_frame_t *frame, void *cookie,
-                                       xlator_t *this, int op_ret,
-                                       int op_errno, dict_t *xdata)
+dht_update_commit_hash_for_layout_cbk(call_frame_t *frame, void *cookie,
+                                      xlator_t *this, int op_ret, int op_errno,
+                                      dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        int           this_call_cnt = 0;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
 
-        local = frame->local;
+    local = frame->local;
 
-        LOCK (&frame->lock);
-        /* store first failure, just because */
-        if (op_ret && !local->op_ret) {
-                local->op_ret = op_ret;
-                local->op_errno = op_errno;
-        }
-        UNLOCK (&frame->lock);
+    LOCK(&frame->lock);
+    /* store first failure, just because */
+    if (op_ret && !local->op_ret) {
+        local->op_ret = op_ret;
+        local->op_errno = op_errno;
+    }
+    UNLOCK(&frame->lock);
 
-        this_call_cnt = dht_frame_return (frame);
+    this_call_cnt = dht_frame_return(frame);
 
-        if (is_last_call (this_call_cnt)) {
-                dht_update_commit_hash_for_layout_unlock (frame, this);
-        }
+    if (is_last_call(this_call_cnt)) {
+        dht_update_commit_hash_for_layout_unlock(frame, this);
+    }
 
-        return 0;
+    return 0;
 }
 
 int
-dht_update_commit_hash_for_layout_resume (call_frame_t *frame, void *cookie,
-                                          xlator_t *this, int32_t op_ret,
-                                          int32_t op_errno, dict_t *xdata)
+dht_update_commit_hash_for_layout_resume(call_frame_t *frame, void *cookie,
+                                         xlator_t *this, int32_t op_ret,
+                                         int32_t op_errno, dict_t *xdata)
 {
-        dht_local_t   *local = NULL;
-        int            count = 1, ret = -1, i = 0, j = 0;
-        dht_conf_t    *conf = NULL;
-        dht_layout_t  *layout = NULL;
-        int32_t       *disk_layout = NULL;
-        dict_t        **xattr = NULL;
-
-        local = frame->local;
-        conf = frame->this->private;
-        count = conf->local_subvols_cnt;
-        layout = local->layout;
-
-        if (op_ret < 0) {
-                goto err_done;
-        }
-
-        /* We precreate the xattr list as we cannot change call count post the
-         * first wind as we may never continue from there. So we finish prep
-         * work before winding the setxattrs */
-        xattr = GF_CALLOC (count, sizeof (*xattr), gf_common_mt_char);
-        if (!xattr) {
-                local->op_errno = errno;
+    dht_local_t *local = NULL;
+    int count = 1, ret = -1, i = 0, j = 0;
+    dht_conf_t *conf = NULL;
+    dht_layout_t *layout = NULL;
+    int32_t *disk_layout = NULL;
+    dict_t **xattr = NULL;
+
+    local = frame->local;
+    conf = frame->this->private;
+    count = conf->local_subvols_cnt;
+    layout = local->layout;
+
+    if (op_ret < 0) {
+        goto err_done;
+    }
+
+    /* We precreate the xattr list as we cannot change call count post the
+     * first wind as we may never continue from there. So we finish prep
+     * work before winding the setxattrs */
+    xattr = GF_CALLOC(count, sizeof(*xattr), gf_common_mt_char);
+    if (!xattr) {
+        local->op_errno = errno;
+
+        gf_msg(this->name, GF_LOG_WARNING, errno,
+               DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+               "Directory commit hash update failed:"
+               " %s: Allocation failed",
+               local->loc.path);
+
+        goto err;
+    }
+
+    for (i = 0; i < count; i++) {
+        /* find the layout index for the subvolume */
+        ret = dht_layout_index_for_subvol(layout, conf->local_subvols[i]);
+        if (ret < 0) {
+            local->op_errno = ENOENT;
 
-                gf_msg (this->name, GF_LOG_WARNING, errno,
-                        DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                        "Directory commit hash update failed:"
-                        " %s: Allocation failed", local->loc.path);
+            gf_msg(this->name, GF_LOG_WARNING, 0,
+                   DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+                   "Directory commit hash update failed:"
+                   " %s: (subvol %s) Failed to find disk layout",
+                   local->loc.path, conf->local_subvols[i]->name);
 
-                goto err;
+            goto err;
         }
+        j = ret;
 
-        for (i = 0; i < count; i++) {
-                /* find the layout index for the subvolume */
-                ret = dht_layout_index_for_subvol (layout,
-                                                   conf->local_subvols[i]);
-                if (ret < 0) {
-                        local->op_errno = ENOENT;
-
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                                "Directory commit hash update failed:"
-                                " %s: (subvol %s) Failed to find disk layout",
-                                local->loc.path, conf->local_subvols[i]->name);
-
-                        goto err;
-                }
-                j = ret;
-
-                /* update the commit hash for the layout */
-                layout->list[j].commit_hash = layout->commit_hash;
+        /* update the commit hash for the layout */
+        layout->list[j].commit_hash = layout->commit_hash;
 
-                /* extract the current layout */
-                ret = dht_disk_layout_extract (this, layout, j, &disk_layout);
-                if (ret == -1) {
-                        local->op_errno = errno;
-
-                        gf_msg (this->name, GF_LOG_WARNING, errno,
-                                DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                                "Directory commit hash update failed:"
-                                " %s: (subvol %s) Failed to extract disk"
-                                " layout", local->loc.path,
-                                conf->local_subvols[i]->name);
+        /* extract the current layout */
+        ret = dht_disk_layout_extract(this, layout, j, &disk_layout);
+        if (ret == -1) {
+            local->op_errno = errno;
 
-                        goto err;
-                }
+            gf_msg(this->name, GF_LOG_WARNING, errno,
+                   DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+                   "Directory commit hash update failed:"
+                   " %s: (subvol %s) Failed to extract disk"
+                   " layout",
+                   local->loc.path, conf->local_subvols[i]->name);
 
-                xattr[i] = dict_new ();
-                if (!xattr[i]) {
-                        local->op_errno = errno;
+            goto err;
+        }
 
-                        gf_msg (this->name, GF_LOG_WARNING, errno,
-                                DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                                "Directory commit hash update failed:"
-                                " %s: Allocation failed", local->loc.path);
+        xattr[i] = dict_new();
+        if (!xattr[i]) {
+            local->op_errno = errno;
 
-                        goto err;
-                }
+            gf_msg(this->name, GF_LOG_WARNING, errno,
+                   DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+                   "Directory commit hash update failed:"
+                   " %s: Allocation failed",
+                   local->loc.path);
 
-                ret = dict_set_bin (xattr[i], conf->xattr_name,
-                                    disk_layout, 4 * 4);
-                if (ret != 0) {
-                        local->op_errno = ENOMEM;
+            goto err;
+        }
 
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
-                                "Directory self heal xattr failed:"
-                                "%s: (subvol %s) Failed to set xattr"
-                                " dictionary,", local->loc.path,
-                                conf->local_subvols[i]->name);
+        ret = dict_set_bin(xattr[i], conf->xattr_name, disk_layout, 4 * 4);
+        if (ret != 0) {
+            local->op_errno = ENOMEM;
 
-                        goto err;
-                }
-                disk_layout = NULL;
+            gf_msg(this->name, GF_LOG_WARNING, 0,
+                   DHT_MSG_DIR_SELFHEAL_XATTR_FAILED,
+                   "Directory self heal xattr failed:"
+                   "%s: (subvol %s) Failed to set xattr"
+                   " dictionary,",
+                   local->loc.path, conf->local_subvols[i]->name);
 
-                gf_msg_trace (this->name, 0,
-                              "setting commit hash %u on subvolume %s"
-                              " for %s", layout->list[j].commit_hash,
-                              conf->local_subvols[i]->name, local->loc.path);
+            goto err;
         }
+        disk_layout = NULL;
 
-        /* wind the setting of the commit hash across the local subvols */
-        local->call_cnt = count;
-        local->op_ret = 0;
-        local->op_errno = 0;
+        gf_msg_trace(this->name, 0,
+                     "setting commit hash %u on subvolume %s"
+                     " for %s",
+                     layout->list[j].commit_hash, conf->local_subvols[i]->name,
+                     local->loc.path);
+    }
+
+    /* wind the setting of the commit hash across the local subvols */
+    local->call_cnt = count;
+    local->op_ret = 0;
+    local->op_errno = 0;
+    for (i = 0; i < count; i++) {
+        STACK_WIND(frame, dht_update_commit_hash_for_layout_cbk,
+                   conf->local_subvols[i],
+                   conf->local_subvols[i]->fops->setxattr, &local->loc,
+                   xattr[i], 0, NULL);
+    }
+    for (i = 0; i < count; i++)
+        dict_unref(xattr[i]);
+    GF_FREE(xattr);
+
+    return 0;
+err:
+    if (xattr) {
         for (i = 0; i < count; i++) {
-                STACK_WIND (frame, dht_update_commit_hash_for_layout_cbk,
-                            conf->local_subvols[i],
-                            conf->local_subvols[i]->fops->setxattr,
-                            &local->loc, xattr[i], 0, NULL);
-
+            if (xattr[i])
+                dict_unref(xattr[i]);
         }
-        for (i = 0; i < count; i++)
-                dict_unref (xattr[i]);
-        GF_FREE (xattr);
-
-        return 0;
-err:
-        if (xattr) {
-                for (i = 0; i < count; i++) {
-                        if (xattr[i])
-                                dict_unref (xattr[i]);
-                }
 
-                GF_FREE (xattr);
-        }
+        GF_FREE(xattr);
+    }
 
-        GF_FREE (disk_layout);
+    GF_FREE(disk_layout);
 
-        local->op_ret = -1;
+    local->op_ret = -1;
 
-        dht_update_commit_hash_for_layout_unlock (frame, this);
+    dht_update_commit_hash_for_layout_unlock(frame, this);
 
-        return 0;
+    return 0;
 err_done:
-        local->op_ret = -1;
+    local->op_ret = -1;
 
-        dht_update_commit_hash_for_layout_done (frame, NULL, this, 0, 0, NULL);
+    dht_update_commit_hash_for_layout_done(frame, NULL, this, 0, 0, NULL);
 
-        return 0;
+    return 0;
 }
 
 /* ENTER: dht_update_commit_hash_for_layout (see EXIT above)
@@ -2762,55 +2665,52 @@ err_done:
  *  - Unlock and return.
  */
 int
-dht_update_commit_hash_for_layout (call_frame_t *frame)
+dht_update_commit_hash_for_layout(call_frame_t *frame)
 {
-        dht_local_t   *local = NULL;
-        int            count = 1, ret = -1, i = 0;
-        dht_lock_t   **lk_array = NULL;
-        dht_conf_t    *conf = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO (frame->this->name, frame->local, err);
-
-        local = frame->local;
-        conf = frame->this->private;
-
-        if (!conf->defrag)
-                goto err;
-
-        count = conf->local_subvols_cnt;
-        lk_array = GF_CALLOC (count, sizeof (*lk_array),
-                              gf_common_mt_char);
-        if (lk_array == NULL)
-                goto err;
-
-        for (i = 0; i < count; i++) {
-                lk_array[i] = dht_lock_new (frame->this,
-                                            conf->local_subvols[i],
-                                            &local->loc, F_WRLCK,
-                                            DHT_LAYOUT_HEAL_DOMAIN, NULL,
-                                            FAIL_ON_ANY_ERROR);
-                if (lk_array[i] == NULL)
-                        goto err;
-        }
-
-        local->lock[0].layout.my_layout.locks = lk_array;
-        local->lock[0].layout.my_layout.lk_count = count;
-
-        ret = dht_blocking_inodelk (frame, lk_array, count,
-                                    dht_update_commit_hash_for_layout_resume);
-        if (ret < 0) {
-                local->lock[0].layout.my_layout.locks = NULL;
-                local->lock[0].layout.my_layout.lk_count = 0;
-                goto err;
-        }
-
-        return 0;
+    dht_local_t *local = NULL;
+    int count = 1, ret = -1, i = 0;
+    dht_lock_t **lk_array = NULL;
+    dht_conf_t *conf = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", frame, err);
+    GF_VALIDATE_OR_GOTO(frame->this->name, frame->local, err);
+
+    local = frame->local;
+    conf = frame->this->private;
+
+    if (!conf->defrag)
+        goto err;
+
+    count = conf->local_subvols_cnt;
+    lk_array = GF_CALLOC(count, sizeof(*lk_array), gf_common_mt_char);
+    if (lk_array == NULL)
+        goto err;
+
+    for (i = 0; i < count; i++) {
+        lk_array[i] = dht_lock_new(frame->this, conf->local_subvols[i],
+                                   &local->loc, F_WRLCK, DHT_LAYOUT_HEAL_DOMAIN,
+                                   NULL, FAIL_ON_ANY_ERROR);
+        if (lk_array[i] == NULL)
+            goto err;
+    }
+
+    local->lock[0].layout.my_layout.locks = lk_array;
+    local->lock[0].layout.my_layout.lk_count = count;
+
+    ret = dht_blocking_inodelk(frame, lk_array, count,
+                               dht_update_commit_hash_for_layout_resume);
+    if (ret < 0) {
+        local->lock[0].layout.my_layout.locks = NULL;
+        local->lock[0].layout.my_layout.lk_count = 0;
+        goto err;
+    }
+
+    return 0;
 err:
-        if (lk_array != NULL) {
-                dht_lock_array_free (lk_array, count);
-                GF_FREE (lk_array);
-        }
+    if (lk_array != NULL) {
+        dht_lock_array_free(lk_array, count);
+        GF_FREE(lk_array);
+    }
 
-        return -1;
+    return -1;
 }
diff --git a/xlators/cluster/dht/src/dht-shared.c b/xlators/cluster/dht/src/dht-shared.c
index b5f790b111b..5fd97130d22 100644
--- a/xlators/cluster/dht/src/dht-shared.c
+++ b/xlators/cluster/dht/src/dht-shared.c
@@ -8,36 +8,32 @@
   cases as published by the Free Software Foundation.
 */
 
-
 /* TODO: add NS locking */
 #include "statedump.h"
 #include "dht-common.h"
 #include "dht-messages.h"
 
 #ifndef MAX
-#define MAX(a, b) (((a) > (b))?(a):(b))
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #endif
 
-#define GF_DECIDE_DEFRAG_THROTTLE_COUNT(throttle_count, conf) {         \
-                                                                        \
-                pthread_mutex_lock (&conf->defrag->dfq_mutex);          \
-                                                                        \
-                if (!strcasecmp (conf->dthrottle, "lazy"))              \
-                        conf->defrag->recon_thread_count = 1;           \
-                                                                        \
-                throttle_count =                                        \
-                    MAX ((sysconf(_SC_NPROCESSORS_ONLN) - 4), 4);       \
-                                                                        \
-                if (!strcasecmp (conf->dthrottle, "normal"))            \
-                        conf->defrag->recon_thread_count =              \
-                                                 (throttle_count / 2);  \
-                                                                        \
-                if (!strcasecmp (conf->dthrottle, "aggressive"))        \
-                        conf->defrag->recon_thread_count =              \
-                                                 throttle_count;        \
-                                                                        \
-                pthread_mutex_unlock (&conf->defrag->dfq_mutex);        \
-        }                                                               \
+#define GF_DECIDE_DEFRAG_THROTTLE_COUNT(throttle_count, conf)                  \
+    {                                                                          \
+        pthread_mutex_lock(&conf->defrag->dfq_mutex);                          \
+                                                                               \
+        if (!strcasecmp(conf->dthrottle, "lazy"))                              \
+            conf->defrag->recon_thread_count = 1;                              \
+                                                                               \
+        throttle_count = MAX((sysconf(_SC_NPROCESSORS_ONLN) - 4), 4);          \
+                                                                               \
+        if (!strcasecmp(conf->dthrottle, "normal"))                            \
+            conf->defrag->recon_thread_count = (throttle_count / 2);           \
+                                                                               \
+        if (!strcasecmp(conf->dthrottle, "aggressive"))                        \
+            conf->defrag->recon_thread_count = throttle_count;                 \
+                                                                               \
+        pthread_mutex_unlock(&conf->defrag->dfq_mutex);                        \
+    }
 
 /* TODO:
    - use volumename in xattr instead of "dht"
@@ -50,1189 +46,1158 @@ struct volume_options options[];
 extern dht_methods_t dht_methods;
 
 void
-dht_layout_dump (dht_layout_t  *layout, const char *prefix)
+dht_layout_dump(dht_layout_t *layout, const char *prefix)
 {
-
-        char    key[GF_DUMP_MAX_BUF_LEN];
-        int     i = 0;
-
-        if (!layout)
-                goto out;
-        if (!prefix)
-                goto out;
-
-        gf_proc_dump_build_key(key, prefix, "cnt");
-        gf_proc_dump_write(key, "%d", layout->cnt);
-        gf_proc_dump_build_key(key, prefix, "preset");
-        gf_proc_dump_write(key, "%d", layout->preset);
-        gf_proc_dump_build_key(key, prefix, "gen");
-        gf_proc_dump_write(key, "%d", layout->gen);
-        if (layout->type != IA_INVAL) {
-                gf_proc_dump_build_key(key, prefix, "inode type");
-                gf_proc_dump_write(key, "%d", layout->type);
-        }
-
-        if  (!IA_ISDIR (layout->type))
-                goto out;
-
-        for (i = 0; i < layout->cnt; i++) {
-                gf_proc_dump_build_key(key, prefix,"list[%d].err", i);
-                gf_proc_dump_write(key, "%d", layout->list[i].err);
-                gf_proc_dump_build_key(key, prefix,"list[%d].start", i);
-                gf_proc_dump_write(key, "%u", layout->list[i].start);
-                gf_proc_dump_build_key(key, prefix,"list[%d].stop", i);
-                gf_proc_dump_write(key, "%u", layout->list[i].stop);
-                if (layout->list[i].xlator) {
-                        gf_proc_dump_build_key(key, prefix,
-                                               "list[%d].xlator.type", i);
-                        gf_proc_dump_write(key, "%s",
-                                           layout->list[i].xlator->type);
-                        gf_proc_dump_build_key(key, prefix,
-                                               "list[%d].xlator.name", i);
-                        gf_proc_dump_write(key, "%s",
-                                           layout->list[i].xlator->name);
-                }
+    char key[GF_DUMP_MAX_BUF_LEN];
+    int i = 0;
+
+    if (!layout)
+        goto out;
+    if (!prefix)
+        goto out;
+
+    gf_proc_dump_build_key(key, prefix, "cnt");
+    gf_proc_dump_write(key, "%d", layout->cnt);
+    gf_proc_dump_build_key(key, prefix, "preset");
+    gf_proc_dump_write(key, "%d", layout->preset);
+    gf_proc_dump_build_key(key, prefix, "gen");
+    gf_proc_dump_write(key, "%d", layout->gen);
+    if (layout->type != IA_INVAL) {
+        gf_proc_dump_build_key(key, prefix, "inode type");
+        gf_proc_dump_write(key, "%d", layout->type);
+    }
+
+    if (!IA_ISDIR(layout->type))
+        goto out;
+
+    for (i = 0; i < layout->cnt; i++) {
+        gf_proc_dump_build_key(key, prefix, "list[%d].err", i);
+        gf_proc_dump_write(key, "%d", layout->list[i].err);
+        gf_proc_dump_build_key(key, prefix, "list[%d].start", i);
+        gf_proc_dump_write(key, "%u", layout->list[i].start);
+        gf_proc_dump_build_key(key, prefix, "list[%d].stop", i);
+        gf_proc_dump_write(key, "%u", layout->list[i].stop);
+        if (layout->list[i].xlator) {
+            gf_proc_dump_build_key(key, prefix, "list[%d].xlator.type", i);
+            gf_proc_dump_write(key, "%s", layout->list[i].xlator->type);
+            gf_proc_dump_build_key(key, prefix, "list[%d].xlator.name", i);
+            gf_proc_dump_write(key, "%s", layout->list[i].xlator->name);
         }
+    }
 
 out:
-        return;
+    return;
 }
 
-
 int32_t
-dht_priv_dump (xlator_t *this)
+dht_priv_dump(xlator_t *this)
 {
-        char            key_prefix[GF_DUMP_MAX_BUF_LEN];
-        char            key[GF_DUMP_MAX_BUF_LEN];
-        int             i = 0;
-        dht_conf_t      *conf = NULL;
-        int             ret = -1;
+    char key_prefix[GF_DUMP_MAX_BUF_LEN];
+    char key[GF_DUMP_MAX_BUF_LEN];
+    int i = 0;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
 
-        if (!this)
-                goto out;
+    if (!this)
+        goto out;
 
-        conf = this->private;
-        if (!conf)
-                goto out;
+    conf = this->private;
+    if (!conf)
+        goto out;
 
-        ret = TRY_LOCK(&conf->subvolume_lock);
-        if (ret != 0) {
-                return ret;
+    ret = TRY_LOCK(&conf->subvolume_lock);
+    if (ret != 0) {
+        return ret;
+    }
+
+    gf_proc_dump_add_section("xlator.cluster.dht.%s.priv", this->name);
+    gf_proc_dump_build_key(key_prefix, "xlator.cluster.dht", "%s.priv",
+                           this->name);
+    gf_proc_dump_write("subvol_cnt", "%d", conf->subvolume_cnt);
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        snprintf(key, sizeof(key), "subvolumes[%d]", i);
+        gf_proc_dump_write(key, "%s.%s", conf->subvolumes[i]->type,
+                           conf->subvolumes[i]->name);
+        if (conf->file_layouts && conf->file_layouts[i]) {
+            snprintf(key, sizeof(key), "file_layouts[%d]", i);
+            dht_layout_dump(conf->file_layouts[i], key);
         }
-
-        gf_proc_dump_add_section("xlator.cluster.dht.%s.priv", this->name);
-        gf_proc_dump_build_key(key_prefix,"xlator.cluster.dht","%s.priv",
-                               this->name);
-        gf_proc_dump_write("subvol_cnt","%d", conf->subvolume_cnt);
+        if (conf->dir_layouts && conf->dir_layouts[i]) {
+            snprintf(key, sizeof(key), "dir_layouts[%d]", i);
+            dht_layout_dump(conf->dir_layouts[i], key);
+        }
+        if (conf->subvolume_status) {
+            snprintf(key, sizeof(key), "subvolume_status[%d]", i);
+            gf_proc_dump_write(key, "%d", (int)conf->subvolume_status[i]);
+        }
+    }
+
+    gf_proc_dump_write("search_unhashed", "%d", conf->search_unhashed);
+    gf_proc_dump_write("gen", "%d", conf->gen);
+    gf_proc_dump_write("min_free_disk", "%lf", conf->min_free_disk);
+    gf_proc_dump_write("min_free_inodes", "%lf", conf->min_free_inodes);
+    gf_proc_dump_write("disk_unit", "%c", conf->disk_unit);
+    gf_proc_dump_write("refresh_interval", "%d", conf->refresh_interval);
+    gf_proc_dump_write("unhashed_sticky_bit", "%d", conf->unhashed_sticky_bit);
+    gf_proc_dump_write("use-readdirp", "%d", conf->use_readdirp);
+
+    if (conf->du_stats && conf->subvolume_status) {
         for (i = 0; i < conf->subvolume_cnt; i++) {
-                snprintf (key, sizeof (key), "subvolumes[%d]", i);
-                gf_proc_dump_write(key, "%s.%s", conf->subvolumes[i]->type,
-                                   conf->subvolumes[i]->name);
-                if (conf->file_layouts && conf->file_layouts[i]){
-                        snprintf (key, sizeof (key), "file_layouts[%d]", i);
-                        dht_layout_dump(conf->file_layouts[i], key);
-                }
-                if (conf->dir_layouts && conf->dir_layouts[i]) {
-                        snprintf (key, sizeof (key), "dir_layouts[%d]", i);
-                        dht_layout_dump(conf->dir_layouts[i], key);
-                }
-                if (conf->subvolume_status) {
-
-                        snprintf (key, sizeof (key), "subvolume_status[%d]", i);
-                        gf_proc_dump_write(key, "%d",
-                                           (int)conf->subvolume_status[i]);
-                }
+            if (!conf->subvolume_status[i])
+                continue;
 
-        }
+            snprintf(key, sizeof(key), "subvolumes[%d]", i);
+            gf_proc_dump_write(key, "%s", conf->subvolumes[i]->name);
+
+            snprintf(key, sizeof(key), "du_stats[%d].avail_percent", i);
+            gf_proc_dump_write(key, "%lf", conf->du_stats[i].avail_percent);
+
+            snprintf(key, sizeof(key), "du_stats[%d].avail_space", i);
+            gf_proc_dump_write(key, "%lu", conf->du_stats[i].avail_space);
 
-        gf_proc_dump_write("search_unhashed", "%d", conf->search_unhashed);
-        gf_proc_dump_write("gen", "%d", conf->gen);
-        gf_proc_dump_write("min_free_disk", "%lf", conf->min_free_disk);
-        gf_proc_dump_write("min_free_inodes", "%lf", conf->min_free_inodes);
-        gf_proc_dump_write("disk_unit", "%c", conf->disk_unit);
-        gf_proc_dump_write("refresh_interval", "%d", conf->refresh_interval);
-        gf_proc_dump_write("unhashed_sticky_bit", "%d", conf->unhashed_sticky_bit);
-        gf_proc_dump_write("use-readdirp", "%d", conf->use_readdirp);
-
-        if (conf->du_stats && conf->subvolume_status) {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (!conf->subvolume_status[i])
-                                continue;
-
-                        snprintf (key, sizeof (key), "subvolumes[%d]", i);
-                        gf_proc_dump_write (key, "%s",
-                                            conf->subvolumes[i]->name);
-
-                        snprintf (key, sizeof (key),
-                                  "du_stats[%d].avail_percent", i);
-                        gf_proc_dump_write (key, "%lf",
-                                            conf->du_stats[i].avail_percent);
-
-                        snprintf (key, sizeof (key), "du_stats[%d].avail_space",
-                                  i);
-                        gf_proc_dump_write (key, "%lu",
-                                            conf->du_stats[i].avail_space);
-
-                        snprintf (key, sizeof (key),
-                                  "du_stats[%d].avail_inodes", i);
-                        gf_proc_dump_write (key, "%lf",
-                                            conf->du_stats[i].avail_inodes);
-
-                        snprintf (key, sizeof (key), "du_stats[%d].log", i);
-                        gf_proc_dump_write (key, "%lu",
-                                            conf->du_stats[i].log);
-                }
+            snprintf(key, sizeof(key), "du_stats[%d].avail_inodes", i);
+            gf_proc_dump_write(key, "%lf", conf->du_stats[i].avail_inodes);
+
+            snprintf(key, sizeof(key), "du_stats[%d].log", i);
+            gf_proc_dump_write(key, "%lu", conf->du_stats[i].log);
         }
+    }
 
-        if (conf->last_stat_fetch.tv_sec)
-                gf_proc_dump_write("last_stat_fetch", "%s",
-                                    ctime(&conf->last_stat_fetch.tv_sec));
+    if (conf->last_stat_fetch.tv_sec)
+        gf_proc_dump_write("last_stat_fetch", "%s",
+                           ctime(&conf->last_stat_fetch.tv_sec));
 
-        UNLOCK(&conf->subvolume_lock);
+    UNLOCK(&conf->subvolume_lock);
 
 out:
-        return ret;
+    return ret;
 }
 
 int32_t
-dht_inodectx_dump (xlator_t *this, inode_t *inode)
+dht_inodectx_dump(xlator_t *this, inode_t *inode)
 {
-        int             ret = -1;
-        dht_layout_t    *layout = NULL;
+    int ret = -1;
+    dht_layout_t *layout = NULL;
 
-        if (!this)
-                goto out;
-        if (!inode)
-                goto out;
+    if (!this)
+        goto out;
+    if (!inode)
+        goto out;
 
-        ret = dht_inode_ctx_layout_get (inode, this, &layout);
+    ret = dht_inode_ctx_layout_get(inode, this, &layout);
 
-        if ((ret != 0) || !layout)
-                return ret;
+    if ((ret != 0) || !layout)
+        return ret;
 
-        gf_proc_dump_add_section("xlator.cluster.dht.%s.inode", this->name);
-        dht_layout_dump(layout, "layout");
+    gf_proc_dump_add_section("xlator.cluster.dht.%s.inode", this->name);
+    dht_layout_dump(layout, "layout");
 
 out:
-        return ret;
+    return ret;
 }
 
 void
-dht_fini (xlator_t *this)
+dht_fini(xlator_t *this)
 {
-        int         i = 0;
-        dht_conf_t *conf = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-
-        conf = this->private;
-        this->private = NULL;
-        if (conf) {
-                if (conf->file_layouts) {
-                        for (i = 0; i < conf->subvolume_cnt; i++) {
-                                GF_FREE (conf->file_layouts[i]);
-                        }
-                        GF_FREE (conf->file_layouts);
-                }
-
-                dict_unref(conf->leaf_to_subvol);
-
-                /* allocated in dht_init_subvolumes() */
-                GF_FREE (conf->subvolumes);
-                GF_FREE (conf->subvolume_status);
-                GF_FREE (conf->last_event);
-                GF_FREE (conf->subvol_up_time);
-                GF_FREE (conf->du_stats);
-                GF_FREE (conf->decommissioned_bricks);
-
-                /* allocated in dht_init() */
-                GF_FREE (conf->mds_xattr_key);
-                GF_FREE (conf->link_xattr_name);
-                GF_FREE (conf->commithash_xattr_name);
-                GF_FREE (conf->wild_xattr_name);
-
-                /* allocated in dht_init_regex() */
-                if (conf->rsync_regex_valid)
-                        regfree (&conf->rsync_regex);
-                if (conf->extra_regex_valid)
-                        regfree (&conf->extra_regex);
-
-                synclock_destroy (&conf->link_lock);
-
-                if (conf->lock_pool)
-                        mem_pool_destroy (conf->lock_pool);
-
-                GF_FREE (conf);
+    int i = 0;
+    dht_conf_t *conf = NULL;
+
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+
+    conf = this->private;
+    this->private = NULL;
+    if (conf) {
+        if (conf->file_layouts) {
+            for (i = 0; i < conf->subvolume_cnt; i++) {
+                GF_FREE(conf->file_layouts[i]);
+            }
+            GF_FREE(conf->file_layouts);
         }
+
+        dict_unref(conf->leaf_to_subvol);
+
+        /* allocated in dht_init_subvolumes() */
+        GF_FREE(conf->subvolumes);
+        GF_FREE(conf->subvolume_status);
+        GF_FREE(conf->last_event);
+        GF_FREE(conf->subvol_up_time);
+        GF_FREE(conf->du_stats);
+        GF_FREE(conf->decommissioned_bricks);
+
+        /* allocated in dht_init() */
+        GF_FREE(conf->mds_xattr_key);
+        GF_FREE(conf->link_xattr_name);
+        GF_FREE(conf->commithash_xattr_name);
+        GF_FREE(conf->wild_xattr_name);
+
+        /* allocated in dht_init_regex() */
+        if (conf->rsync_regex_valid)
+            regfree(&conf->rsync_regex);
+        if (conf->extra_regex_valid)
+            regfree(&conf->extra_regex);
+
+        synclock_destroy(&conf->link_lock);
+
+        if (conf->lock_pool)
+            mem_pool_destroy(conf->lock_pool);
+
+        GF_FREE(conf);
+    }
 out:
-        return;
+    return;
 }
 
 int32_t
-mem_acct_init (xlator_t *this)
+mem_acct_init(xlator_t *this)
 {
-        int     ret = -1;
+    int ret = -1;
 
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
 
-        ret = xlator_mem_acct_init (this, gf_dht_mt_end + 1);
+    ret = xlator_mem_acct_init(this, gf_dht_mt_end + 1);
 
-        if (ret != 0) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_NO_MEMORY,
-                        "Memory accounting init failed");
-                return ret;
-        }
-out:
+    if (ret != 0) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_NO_MEMORY,
+               "Memory accounting init failed");
         return ret;
+    }
+out:
+    return ret;
 }
 
-
 int
-dht_parse_decommissioned_bricks (xlator_t *this, dht_conf_t *conf,
-                                 const char *bricks)
+dht_parse_decommissioned_bricks(xlator_t *this, dht_conf_t *conf,
+                                const char *bricks)
 {
-        int         i  = 0;
-        int         ret  = -1;
-        char       *tmpstr = NULL;
-        char       *dup_brick = NULL;
-        char       *node = NULL;
-
-        if (!conf || !bricks)
-                goto out;
-
-        dup_brick = gf_strdup (bricks);
-        node = strtok_r (dup_brick, ",", &tmpstr);
-        while (node) {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (!strcmp (conf->subvolumes[i]->name, node)) {
-                                conf->decommissioned_bricks[i] =
-                                        conf->subvolumes[i];
-                                        conf->decommission_subvols_cnt++;
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_SUBVOL_DECOMMISSION_INFO,
-                                        "decommissioning subvolume %s",
-                                        conf->subvolumes[i]->name);
-                                break;
-                        }
-                }
-                if (i == conf->subvolume_cnt) {
-                        /* Wrong node given. */
-                        goto out;
-                }
-                node = strtok_r (NULL, ",", &tmpstr);
+    int i = 0;
+    int ret = -1;
+    char *tmpstr = NULL;
+    char *dup_brick = NULL;
+    char *node = NULL;
+
+    if (!conf || !bricks)
+        goto out;
+
+    dup_brick = gf_strdup(bricks);
+    node = strtok_r(dup_brick, ",", &tmpstr);
+    while (node) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (!strcmp(conf->subvolumes[i]->name, node)) {
+                conf->decommissioned_bricks[i] = conf->subvolumes[i];
+                conf->decommission_subvols_cnt++;
+                gf_msg(this->name, GF_LOG_INFO, 0,
+                       DHT_MSG_SUBVOL_DECOMMISSION_INFO,
+                       "decommissioning subvolume %s",
+                       conf->subvolumes[i]->name);
+                break;
+            }
         }
+        if (i == conf->subvolume_cnt) {
+            /* Wrong node given. */
+            goto out;
+        }
+        node = strtok_r(NULL, ",", &tmpstr);
+    }
 
-        ret = 0;
-        conf->decommission_in_progress = 1;
+    ret = 0;
+    conf->decommission_in_progress = 1;
 out:
-        GF_FREE (dup_brick);
+    GF_FREE(dup_brick);
 
-        return ret;
+    return ret;
 }
 
 int
-dht_decommissioned_remove (xlator_t *this, dht_conf_t *conf)
+dht_decommissioned_remove(xlator_t *this, dht_conf_t *conf)
 {
-        int         i  = 0;
-        int         ret  = -1;
+    int i = 0;
+    int ret = -1;
 
-        if (!conf)
-                goto out;
+    if (!conf)
+        goto out;
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (conf->decommissioned_bricks[i]) {
-                        conf->decommissioned_bricks[i] = NULL;
-                        conf->decommission_subvols_cnt--;
-                }
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (conf->decommissioned_bricks[i]) {
+            conf->decommissioned_bricks[i] = NULL;
+            conf->decommission_subvols_cnt--;
         }
+    }
 
-        ret = 0;
+    ret = 0;
 out:
 
-        return ret;
+    return ret;
 }
 void
-dht_init_regex (xlator_t *this, dict_t *odict, char *name,
-                regex_t *re, gf_boolean_t *re_valid, dht_conf_t *conf)
+dht_init_regex(xlator_t *this, dict_t *odict, char *name, regex_t *re,
+               gf_boolean_t *re_valid, dht_conf_t *conf)
 {
-        char       *temp_str = NULL;
+    char *temp_str = NULL;
 
-        if (dict_get_str (odict, name, &temp_str) != 0) {
-                if (strcmp(name,"rsync-hash-regex")) {
-                        return;
-                }
-                temp_str = "^\\.(.+)\\.[^.]+$";
+    if (dict_get_str(odict, name, &temp_str) != 0) {
+        if (strcmp(name, "rsync-hash-regex")) {
+            return;
+        }
+        temp_str = "^\\.(.+)\\.[^.]+$";
+    }
+
+    LOCK(&conf->lock);
+    {
+        if (*re_valid) {
+            regfree(re);
+            *re_valid = _gf_false;
+        }
+
+        if (!strcmp(temp_str, "none")) {
+            goto unlock;
         }
 
-        LOCK (&conf->lock);
-        {
-                if (*re_valid) {
-                        regfree(re);
-                        *re_valid = _gf_false;
-                }
-
-                if (!strcmp(temp_str, "none")) {
-                        goto unlock;
-                }
-
-                if (regcomp(re, temp_str, REG_EXTENDED) == 0) {
-                        gf_msg_debug (this->name, 0,
-                                      "using regex %s = %s", name, temp_str);
-                        *re_valid = _gf_true;
-                } else {
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_REGEX_INFO,
-                                "compiling regex %s failed", temp_str);
-                }
+        if (regcomp(re, temp_str, REG_EXTENDED) == 0) {
+            gf_msg_debug(this->name, 0, "using regex %s = %s", name, temp_str);
+            *re_valid = _gf_true;
+        } else {
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_REGEX_INFO,
+                   "compiling regex %s failed", temp_str);
         }
+    }
 unlock:
-        UNLOCK (&conf->lock);
+    UNLOCK(&conf->lock);
 }
 
 int
 dht_set_subvol_range(xlator_t *this)
 {
-        int ret = -1;
-        dht_conf_t *conf = NULL;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
 
-        conf = this->private;
+    conf = this->private;
 
-        if (!conf)
-                goto out;
+    if (!conf)
+        goto out;
 
-        conf->leaf_to_subvol = dict_new();
-        if (!conf->leaf_to_subvol)
-                goto out;
+    conf->leaf_to_subvol = dict_new();
+    if (!conf->leaf_to_subvol)
+        goto out;
 
-        ret = glusterfs_reachable_leaves(this, conf->leaf_to_subvol);
+    ret = glusterfs_reachable_leaves(this, conf->leaf_to_subvol);
 
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_configure_throttle (xlator_t *this, dht_conf_t *conf, char *temp_str)
+dht_configure_throttle(xlator_t *this, dht_conf_t *conf, char *temp_str)
 {
-        int     rebal_thread_count      = 0;
-        int     ret                     = 0;
-
-        pthread_mutex_lock (&conf->defrag->dfq_mutex);
-        {
-        if (!strcasecmp (temp_str, "lazy")) {
-                conf->defrag->recon_thread_count = 1;
-        } else if (!strcasecmp (temp_str, "normal")) {
-                conf->defrag->recon_thread_count = 2;
-        } else if (!strcasecmp (temp_str, "aggressive")) {
-                conf->defrag->recon_thread_count = MAX (MAX_REBAL_THREADS - 4, 4);
-        } else if ((gf_string2int (temp_str, &rebal_thread_count) == 0)) {
-                if ((rebal_thread_count > 0) && (rebal_thread_count <= MAX_REBAL_THREADS)) {
-                        gf_msg (this->name, GF_LOG_INFO, 0, 0,
-                                "rebal thread count configured to %d",
-                                rebal_thread_count);
-                                conf->defrag->recon_thread_count = rebal_thread_count;
-                } else {
-                        gf_msg(this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_INVALID_OPTION,
-                                "Invalid option: Reconfigure: "
-                                "rebal-throttle should be "
-                                "within range of 0 and maximum number of"
-                                " cores available");
-                                ret = -1;
-                                pthread_mutex_unlock (&conf->defrag->dfq_mutex);
-                                goto out;
-                }
+    int rebal_thread_count = 0;
+    int ret = 0;
+
+    pthread_mutex_lock(&conf->defrag->dfq_mutex);
+    {
+        if (!strcasecmp(temp_str, "lazy")) {
+            conf->defrag->recon_thread_count = 1;
+        } else if (!strcasecmp(temp_str, "normal")) {
+            conf->defrag->recon_thread_count = 2;
+        } else if (!strcasecmp(temp_str, "aggressive")) {
+            conf->defrag->recon_thread_count = MAX(MAX_REBAL_THREADS - 4, 4);
+        } else if ((gf_string2int(temp_str, &rebal_thread_count) == 0)) {
+            if ((rebal_thread_count > 0) &&
+                (rebal_thread_count <= MAX_REBAL_THREADS)) {
+                gf_msg(this->name, GF_LOG_INFO, 0, 0,
+                       "rebal thread count configured to %d",
+                       rebal_thread_count);
+                conf->defrag->recon_thread_count = rebal_thread_count;
+            } else {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_OPTION,
+                       "Invalid option: Reconfigure: "
+                       "rebal-throttle should be "
+                       "within range of 0 and maximum number of"
+                       " cores available");
+                ret = -1;
+                pthread_mutex_unlock(&conf->defrag->dfq_mutex);
+                goto out;
+            }
         } else {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_INVALID_OPTION,
-                        "Invalid option: Reconfigure: "
-                        "rebal-throttle should be {lazy|normal|aggressive}"
-                        " or a number up to the number of cores available,"
-                        " not (%s), defaulting to (%d)",
-                        temp_str, conf->dthrottle);
-                        ret = -1;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_OPTION,
+                   "Invalid option: Reconfigure: "
+                   "rebal-throttle should be {lazy|normal|aggressive}"
+                   " or a number up to the number of cores available,"
+                   " not (%s), defaulting to (%d)",
+                   temp_str, conf->dthrottle);
+            ret = -1;
         }
-        }
-        pthread_mutex_unlock (&conf->defrag->dfq_mutex);
+    }
+    pthread_mutex_unlock(&conf->defrag->dfq_mutex);
 
 out:
-        return ret;
+    return ret;
 }
 
 int
-dht_reconfigure (xlator_t *this, dict_t *options)
+dht_reconfigure(xlator_t *this, dict_t *options)
 {
-        dht_conf_t      *conf = NULL;
-        char            *temp_str = NULL;
-        gf_boolean_t     search_unhashed;
-        int              ret = -1;
-
-        GF_VALIDATE_OR_GOTO ("dht", this, out);
-        GF_VALIDATE_OR_GOTO ("dht", options, out);
-
-        conf = this->private;
-        if (!conf)
-                return 0;
-
-        if (dict_get_str (options, "lookup-unhashed", &temp_str) == 0) {
-                /* If option is not "auto", other options _should_ be boolean*/
-                if (strcasecmp (temp_str, "auto")) {
-                        if (!gf_string2boolean (temp_str, &search_unhashed)) {
-                                gf_msg_debug(this->name, 0, "Reconfigure: "
-                                             "lookup-unhashed reconfigured(%s)",
-                                             temp_str);
-                                conf->search_unhashed = search_unhashed;
-                        } else {
-                                gf_msg(this->name, GF_LOG_ERROR, 0,
-                                       DHT_MSG_INVALID_OPTION,
-                                       "Invalid option: Reconfigure: "
-                                       "lookup-unhashed should be boolean,"
-                                       " not (%s), defaulting to (%d)",
-                                       temp_str, conf->search_unhashed);
-                                ret = -1;
-                                goto out;
-                        }
-                } else {
-                        gf_msg_debug(this->name, 0, "Reconfigure:"
-                                     " lookup-unhashed reconfigured auto ");
-                        conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_AUTO;
-                }
-        }
+    dht_conf_t *conf = NULL;
+    char *temp_str = NULL;
+    gf_boolean_t search_unhashed;
+    int ret = -1;
 
-        GF_OPTION_RECONF ("lookup-optimize", conf->lookup_optimize, options,
-                          bool, out);
+    GF_VALIDATE_OR_GOTO("dht", this, out);
+    GF_VALIDATE_OR_GOTO("dht", options, out);
 
-        GF_OPTION_RECONF ("min-free-disk", conf->min_free_disk, options,
-                          percent_or_size, out);
-        /* option can be any one of percent or bytes */
-        conf->disk_unit = 0;
-        if (conf->min_free_disk < 100.0)
-                conf->disk_unit = 'p';
+    conf = this->private;
+    if (!conf)
+        return 0;
 
-        GF_OPTION_RECONF ("min-free-inodes", conf->min_free_inodes, options,
-                          percent, out);
+    if (dict_get_str(options, "lookup-unhashed", &temp_str) == 0) {
+        /* If option is not "auto", other options _should_ be boolean*/
+        if (strcasecmp(temp_str, "auto")) {
+            if (!gf_string2boolean(temp_str, &search_unhashed)) {
+                gf_msg_debug(this->name, 0,
+                             "Reconfigure: "
+                             "lookup-unhashed reconfigured(%s)",
+                             temp_str);
+                conf->search_unhashed = search_unhashed;
+            } else {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_OPTION,
+                       "Invalid option: Reconfigure: "
+                       "lookup-unhashed should be boolean,"
+                       " not (%s), defaulting to (%d)",
+                       temp_str, conf->search_unhashed);
+                ret = -1;
+                goto out;
+            }
+        } else {
+            gf_msg_debug(this->name, 0,
+                         "Reconfigure:"
+                         " lookup-unhashed reconfigured auto ");
+            conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_AUTO;
+        }
+    }
 
-        GF_OPTION_RECONF ("directory-layout-spread", conf->dir_spread_cnt,
-                          options, uint32, out);
+    GF_OPTION_RECONF("lookup-optimize", conf->lookup_optimize, options, bool,
+                     out);
 
-        GF_OPTION_RECONF ("readdir-optimize", conf->readdir_optimize, options,
-                          bool, out);
-        GF_OPTION_RECONF ("randomize-hash-range-by-gfid",
-                          conf->randomize_by_gfid,
-                          options, bool, out);
+    GF_OPTION_RECONF("min-free-disk", conf->min_free_disk, options,
+                     percent_or_size, out);
+    /* option can be any one of percent or bytes */
+    conf->disk_unit = 0;
+    if (conf->min_free_disk < 100.0)
+        conf->disk_unit = 'p';
 
-        GF_OPTION_RECONF ("lock-migration", conf->lock_migration_enabled,
-                          options, bool, out);
+    GF_OPTION_RECONF("min-free-inodes", conf->min_free_inodes, options, percent,
+                     out);
 
-        GF_OPTION_RECONF ("force-migration", conf->force_migration,
-                          options, bool, out);
+    GF_OPTION_RECONF("directory-layout-spread", conf->dir_spread_cnt, options,
+                     uint32, out);
 
+    GF_OPTION_RECONF("readdir-optimize", conf->readdir_optimize, options, bool,
+                     out);
+    GF_OPTION_RECONF("randomize-hash-range-by-gfid", conf->randomize_by_gfid,
+                     options, bool, out);
 
-        if (conf->defrag) {
-                if (dict_get_str (options, "rebal-throttle", &temp_str) == 0) {
-                        ret = dht_configure_throttle (this, conf, temp_str);
-                        if (ret == -1)
-                                goto out;
-                }
-        }
+    GF_OPTION_RECONF("lock-migration", conf->lock_migration_enabled, options,
+                     bool, out);
 
-        if (conf->defrag) {
-                conf->defrag->lock_migration_enabled =
-                                        conf->lock_migration_enabled;
-        }
+    GF_OPTION_RECONF("force-migration", conf->force_migration, options, bool,
+                     out);
 
-        if (conf->defrag) {
-                GF_OPTION_RECONF ("rebalance-stats", conf->defrag->stats,
-                                  options, bool, out);
+    if (conf->defrag) {
+        if (dict_get_str(options, "rebal-throttle", &temp_str) == 0) {
+            ret = dht_configure_throttle(this, conf, temp_str);
+            if (ret == -1)
+                goto out;
         }
+    }
+
+    if (conf->defrag) {
+        conf->defrag->lock_migration_enabled = conf->lock_migration_enabled;
+    }
+
+    if (conf->defrag) {
+        GF_OPTION_RECONF("rebalance-stats", conf->defrag->stats, options, bool,
+                         out);
+    }
+
+    if (dict_get_str(options, "decommissioned-bricks", &temp_str) == 0) {
+        ret = dht_parse_decommissioned_bricks(this, conf, temp_str);
+        if (ret == -1)
+            goto out;
+    } else {
+        ret = dht_decommissioned_remove(this, conf);
+        if (ret == -1)
+            goto out;
+    }
+
+    dht_init_regex(this, options, "rsync-hash-regex", &conf->rsync_regex,
+                   &conf->rsync_regex_valid, conf);
+    dht_init_regex(this, options, "extra-hash-regex", &conf->extra_regex,
+                   &conf->extra_regex_valid, conf);
+
+    GF_OPTION_RECONF("weighted-rebalance", conf->do_weighting, options, bool,
+                     out);
+
+    GF_OPTION_RECONF("use-readdirp", conf->use_readdirp, options, bool, out);
+    ret = 0;
+out:
+    return ret;
+}
 
-        if (dict_get_str (options, "decommissioned-bricks", &temp_str) == 0) {
-                ret = dht_parse_decommissioned_bricks (this, conf, temp_str);
-                if (ret == -1)
-                        goto out;
-        } else {
-                ret = dht_decommissioned_remove (this, conf);
-                if (ret == -1)
-                        goto out;
+static int
+gf_defrag_pattern_list_fill(xlator_t *this, gf_defrag_info_t *defrag,
+                            char *data)
+{
+    int ret = -1;
+    char *tmp_str = NULL;
+    char *tmp_str1 = NULL;
+    char *dup_str = NULL;
+    char *num = NULL;
+    char *pattern_str = NULL;
+    char *pattern = NULL;
+    gf_defrag_pattern_list_t *temp_list = NULL;
+    gf_defrag_pattern_list_t *pattern_list = NULL;
+
+    if (!this || !defrag || !data)
+        goto out;
+
+    /* Get the pattern for pattern list. "pattern:<optional-size>"
+     * eg: *avi, *pdf:10MB, *:1TB
+     */
+    pattern_str = strtok_r(data, ",", &tmp_str);
+    while (pattern_str) {
+        dup_str = gf_strdup(pattern_str);
+        pattern_list = GF_CALLOC(1, sizeof(gf_defrag_pattern_list_t), 1);
+        if (!pattern_list) {
+            goto out;
         }
+        pattern = strtok_r(dup_str, ":", &tmp_str1);
+        num = strtok_r(NULL, ":", &tmp_str1);
+        if (!pattern)
+            goto out;
+        if (!num) {
+            if (gf_string2bytesize_uint64(pattern, &pattern_list->size) == 0) {
+                pattern = "*";
+            }
+        } else if (gf_string2bytesize_uint64(num, &pattern_list->size) != 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_OPTION,
+                   "Invalid option. Defrag pattern:"
+                   " Invalid number format \"%s\"",
+                   num);
+            goto out;
+        }
+        memcpy(pattern_list->path_pattern, pattern, strlen(dup_str));
 
-        dht_init_regex (this, options, "rsync-hash-regex",
-                        &conf->rsync_regex, &conf->rsync_regex_valid, conf);
-        dht_init_regex (this, options, "extra-hash-regex",
-                        &conf->extra_regex, &conf->extra_regex_valid, conf);
+        if (!defrag->defrag_pattern)
+            temp_list = NULL;
+        else
+            temp_list = defrag->defrag_pattern;
 
-        GF_OPTION_RECONF ("weighted-rebalance", conf->do_weighting, options,
-                          bool, out);
+        pattern_list->next = temp_list;
 
-        GF_OPTION_RECONF ("use-readdirp", conf->use_readdirp, options,
-                          bool, out);
-        ret = 0;
-out:
-        return ret;
-}
+        defrag->defrag_pattern = pattern_list;
+        pattern_list = NULL;
 
-static int
-gf_defrag_pattern_list_fill (xlator_t *this, gf_defrag_info_t *defrag, char *data)
-{
-        int                    ret = -1;
-        char                  *tmp_str = NULL;
-        char                  *tmp_str1 = NULL;
-        char                  *dup_str = NULL;
-        char                  *num = NULL;
-        char                  *pattern_str = NULL;
-        char                  *pattern = NULL;
-        gf_defrag_pattern_list_t *temp_list = NULL;
-        gf_defrag_pattern_list_t *pattern_list = NULL;
-
-        if (!this || !defrag || !data)
-                goto out;
+        GF_FREE(dup_str);
+        dup_str = NULL;
 
-        /* Get the pattern for pattern list. "pattern:<optional-size>"
-         * eg: *avi, *pdf:10MB, *:1TB
-         */
-        pattern_str = strtok_r (data, ",", &tmp_str);
-        while (pattern_str) {
-                dup_str = gf_strdup (pattern_str);
-                pattern_list = GF_CALLOC (1, sizeof (gf_defrag_pattern_list_t),
-                                        1);
-                if (!pattern_list) {
-                        goto out;
-                }
-                pattern = strtok_r (dup_str, ":", &tmp_str1);
-                num = strtok_r (NULL, ":", &tmp_str1);
-                if (!pattern)
-                        goto out;
-                if (!num) {
-                        if (gf_string2bytesize_uint64(pattern, &pattern_list->size)
-                             == 0) {
-                                pattern = "*";
-                        }
-                } else if (gf_string2bytesize_uint64 (num, &pattern_list->size) != 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_INVALID_OPTION,
-                                "Invalid option. Defrag pattern:"
-                                " Invalid number format \"%s\"", num);
-                        goto out;
-                }
-                memcpy (pattern_list->path_pattern, pattern, strlen (dup_str));
-
-                if (!defrag->defrag_pattern)
-                        temp_list = NULL;
-                else
-                        temp_list = defrag->defrag_pattern;
-
-                pattern_list->next = temp_list;
-
-                defrag->defrag_pattern = pattern_list;
-                pattern_list = NULL;
-
-                GF_FREE (dup_str);
-                dup_str = NULL;
-
-                pattern_str = strtok_r (NULL, ",", &tmp_str);
-        }
+        pattern_str = strtok_r(NULL, ",", &tmp_str);
+    }
 
-        ret = 0;
+    ret = 0;
 out:
-        if (ret)
-                GF_FREE (pattern_list);
-        GF_FREE (dup_str);
+    if (ret)
+        GF_FREE(pattern_list);
+    GF_FREE(dup_str);
 
-        return ret;
+    return ret;
 }
 
-
-
 int
-dht_init_methods (xlator_t *this)
+dht_init_methods(xlator_t *this)
 {
-        int ret                  = -1;
-        dht_conf_t      *conf    = NULL;
-        dht_methods_t   *methods = NULL;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
 
-        GF_VALIDATE_OR_GOTO ("dht", this, err);
+    GF_VALIDATE_OR_GOTO("dht", this, err);
 
-        conf = this->private;
-        methods = &(conf->methods);
+    conf = this->private;
+    methods = &(conf->methods);
 
-        methods->migration_get_dst_subvol = dht_migration_get_dst_subvol;
-        methods->migration_needed = dht_migration_needed;
-        methods->migration_other  = NULL;
-        methods->layout_search    = dht_layout_search;
+    methods->migration_get_dst_subvol = dht_migration_get_dst_subvol;
+    methods->migration_needed = dht_migration_needed;
+    methods->migration_other = NULL;
+    methods->layout_search = dht_layout_search;
 
-        ret = 0;
+    ret = 0;
 err:
-        return ret;
+    return ret;
 }
 
 int
-dht_init (xlator_t *this)
+dht_init(xlator_t *this)
 {
-        dht_conf_t                      *conf           = NULL;
-        char                            *temp_str       = NULL;
-        int                              ret            = -1;
-        int                              i              = 0;
-        gf_defrag_info_t                *defrag         = NULL;
-        int                              cmd            = 0;
-        char                            *node_uuid      = NULL;
-        uint32_t                         commit_hash    = 0;
-
-        GF_VALIDATE_OR_GOTO ("dht", this, err);
-
-        if (!this->children) {
-                gf_msg (this->name, GF_LOG_CRITICAL, 0,
-                        DHT_MSG_INVALID_CONFIGURATION,
-                        "Distribute needs more than one subvolume");
-                return -1;
-        }
-
-        if (!this->parents) {
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_INVALID_CONFIGURATION,
-                        "dangling volume. check volfile");
-        }
-
-        conf = GF_CALLOC (1, sizeof (*conf), gf_dht_mt_dht_conf_t);
-        if (!conf) {
-                goto err;
-        }
-
-        LOCK_INIT (&conf->subvolume_lock);
-        LOCK_INIT (&conf->layout_lock);
-        LOCK_INIT (&conf->lock);
-        synclock_init (&conf->link_lock, SYNC_LOCK_DEFAULT);
-
-        /* We get the commit-hash to set only for rebalance process */
-        if (dict_get_uint32 (this->options,
-                             "commit-hash", &commit_hash) == 0) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_COMMIT_HASH_INFO, "%s using commit hash %u",
-                        __func__, commit_hash);
-                conf->vol_commit_hash = commit_hash;
-                conf->vch_forced = _gf_true;
-        }
-
-        ret = dict_get_int32 (this->options, "rebalance-cmd", &cmd);
-
-        if (cmd) {
-                defrag = GF_CALLOC (1, sizeof (gf_defrag_info_t),
-                                    gf_defrag_info_mt);
-
-                GF_VALIDATE_OR_GOTO (this->name, defrag, err);
-
-                LOCK_INIT (&defrag->lock);
-
-                defrag->is_exiting = 0;
-
-                conf->defrag = defrag;
-                defrag->this = this;
-
-                ret = dict_get_str (this->options, "node-uuid", &node_uuid);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_INVALID_CONFIGURATION,
-                                "Invalid volume configuration: "
-                                "node-uuid not specified");
-                        goto err;
-                }
+    dht_conf_t *conf = NULL;
+    char *temp_str = NULL;
+    int ret = -1;
+    int i = 0;
+    gf_defrag_info_t *defrag = NULL;
+    int cmd = 0;
+    char *node_uuid = NULL;
+    uint32_t commit_hash = 0;
+
+    GF_VALIDATE_OR_GOTO("dht", this, err);
+
+    if (!this->children) {
+        gf_msg(this->name, GF_LOG_CRITICAL, 0, DHT_MSG_INVALID_CONFIGURATION,
+               "Distribute needs more than one subvolume");
+        return -1;
+    }
 
-                if (gf_uuid_parse (node_uuid, defrag->node_uuid)) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_INVALID_OPTION, "Invalid option:"
-                                " Cannot parse glusterd node uuid");
-                        goto err;
-                }
+    if (!this->parents) {
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_INVALID_CONFIGURATION,
+               "dangling volume. check volfile");
+    }
 
-                defrag->cmd = cmd;
+    conf = GF_CALLOC(1, sizeof(*conf), gf_dht_mt_dht_conf_t);
+    if (!conf) {
+        goto err;
+    }
 
-                defrag->stats = _gf_false;
+    LOCK_INIT(&conf->subvolume_lock);
+    LOCK_INIT(&conf->layout_lock);
+    LOCK_INIT(&conf->lock);
+    synclock_init(&conf->link_lock, SYNC_LOCK_DEFAULT);
 
-                defrag->queue = NULL;
+    /* We get the commit-hash to set only for rebalance process */
+    if (dict_get_uint32(this->options, "commit-hash", &commit_hash) == 0) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_COMMIT_HASH_INFO,
+               "%s using commit hash %u", __func__, commit_hash);
+        conf->vol_commit_hash = commit_hash;
+        conf->vch_forced = _gf_true;
+    }
 
-                defrag->crawl_done = 0;
+    ret = dict_get_int32(this->options, "rebalance-cmd", &cmd);
 
-                defrag->global_error = 0;
+    if (cmd) {
+        defrag = GF_CALLOC(1, sizeof(gf_defrag_info_t), gf_defrag_info_mt);
 
-                defrag->q_entry_count = 0;
+        GF_VALIDATE_OR_GOTO(this->name, defrag, err);
 
-                defrag->wakeup_crawler = 0;
+        LOCK_INIT(&defrag->lock);
 
-                pthread_mutex_init (&defrag->dfq_mutex, 0);
-                pthread_cond_init  (&defrag->parallel_migration_cond, 0);
-                pthread_cond_init  (&defrag->rebalance_crawler_alarm, 0);
-                pthread_cond_init  (&defrag->df_wakeup_thread, 0);
+        defrag->is_exiting = 0;
 
-                pthread_mutex_init (&defrag->fc_mutex, 0);
-                pthread_cond_init  (&defrag->fc_wakeup_cond, 0);
+        conf->defrag = defrag;
+        defrag->this = this;
 
-                defrag->global_error = 0;
+        ret = dict_get_str(this->options, "node-uuid", &node_uuid);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_CONFIGURATION,
+                   "Invalid volume configuration: "
+                   "node-uuid not specified");
+            goto err;
         }
 
-        conf->use_fallocate = 1;
-
-        conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_ON;
-        if (dict_get_str (this->options, "lookup-unhashed", &temp_str) == 0) {
-                /* If option is not "auto", other options _should_ be boolean */
-                if (strcasecmp (temp_str, "auto")) {
-                        gf_boolean_t    search_unhashed_bool;
-                        ret = gf_string2boolean (temp_str, &search_unhashed_bool);
-                        if (ret == -1) {
-                                goto err;
-                        }
-                        conf->search_unhashed = search_unhashed_bool
-                                              ? GF_DHT_LOOKUP_UNHASHED_ON
-                                              : GF_DHT_LOOKUP_UNHASHED_OFF;
-                }
-                else {
-                        conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_AUTO;
-                }
+        if (gf_uuid_parse(node_uuid, defrag->node_uuid)) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_OPTION,
+                   "Invalid option:"
+                   " Cannot parse glusterd node uuid");
+            goto err;
         }
 
-        GF_OPTION_INIT ("lookup-optimize", conf->lookup_optimize, bool, err);
+        defrag->cmd = cmd;
 
-        GF_OPTION_INIT ("unhashed-sticky-bit", conf->unhashed_sticky_bit, bool,
-                        err);
+        defrag->stats = _gf_false;
 
-        GF_OPTION_INIT ("use-readdirp", conf->use_readdirp, bool, err);
+        defrag->queue = NULL;
 
-        GF_OPTION_INIT ("min-free-disk", conf->min_free_disk, percent_or_size,
-                        err);
+        defrag->crawl_done = 0;
 
-        GF_OPTION_INIT ("min-free-inodes", conf->min_free_inodes, percent,
-                        err);
+        defrag->global_error = 0;
 
-        conf->dir_spread_cnt = conf->subvolume_cnt;
-        GF_OPTION_INIT ("directory-layout-spread", conf->dir_spread_cnt,
-                        uint32, err);
+        defrag->q_entry_count = 0;
 
-        GF_OPTION_INIT ("assert-no-child-down", conf->assert_no_child_down,
-                        bool, err);
+        defrag->wakeup_crawler = 0;
 
-        GF_OPTION_INIT ("readdir-optimize", conf->readdir_optimize, bool, err);
+        pthread_mutex_init(&defrag->dfq_mutex, 0);
+        pthread_cond_init(&defrag->parallel_migration_cond, 0);
+        pthread_cond_init(&defrag->rebalance_crawler_alarm, 0);
+        pthread_cond_init(&defrag->df_wakeup_thread, 0);
 
+        pthread_mutex_init(&defrag->fc_mutex, 0);
+        pthread_cond_init(&defrag->fc_wakeup_cond, 0);
 
-        GF_OPTION_INIT ("lock-migration", conf->lock_migration_enabled,
-                         bool, err);
+        defrag->global_error = 0;
+    }
 
-        GF_OPTION_INIT ("force-migration", conf->force_migration,
-                        bool, err);
+    conf->use_fallocate = 1;
 
+    conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_ON;
+    if (dict_get_str(this->options, "lookup-unhashed", &temp_str) == 0) {
+        /* If option is not "auto", other options _should_ be boolean */
+        if (strcasecmp(temp_str, "auto")) {
+            gf_boolean_t search_unhashed_bool;
+            ret = gf_string2boolean(temp_str, &search_unhashed_bool);
+            if (ret == -1) {
+                goto err;
+            }
+            conf->search_unhashed = search_unhashed_bool
+                                        ? GF_DHT_LOOKUP_UNHASHED_ON
+                                        : GF_DHT_LOOKUP_UNHASHED_OFF;
+        } else {
+            conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_AUTO;
+        }
+    }
 
-        if (defrag) {
-              defrag->lock_migration_enabled = conf->lock_migration_enabled;
+    GF_OPTION_INIT("lookup-optimize", conf->lookup_optimize, bool, err);
 
-              GF_OPTION_INIT ("rebalance-stats", defrag->stats, bool, err);
-                if (dict_get_str (this->options, "rebalance-filter", &temp_str)
-                    == 0) {
-                        if (gf_defrag_pattern_list_fill (this, defrag, temp_str)
-                            == -1) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_INVALID_OPTION,
-                                        "Invalid option:"
-                                        " Cannot parse rebalance-filter (%s)",
-                                        temp_str);
+    GF_OPTION_INIT("unhashed-sticky-bit", conf->unhashed_sticky_bit, bool, err);
 
-                                goto err;
-                        }
-                }
-        }
+    GF_OPTION_INIT("use-readdirp", conf->use_readdirp, bool, err);
 
-        /* option can be any one of percent or bytes */
-        conf->disk_unit = 0;
-        if (conf->min_free_disk < 100)
-                conf->disk_unit = 'p';
+    GF_OPTION_INIT("min-free-disk", conf->min_free_disk, percent_or_size, err);
 
-        ret = dht_init_subvolumes (this, conf);
-        if (ret == -1) {
-                goto err;
-        }
+    GF_OPTION_INIT("min-free-inodes", conf->min_free_inodes, percent, err);
 
-        if (cmd) {
-                ret = dht_init_local_subvolumes (this, conf);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_INIT_LOCAL_SUBVOL_FAILED,
-                                "dht_init_local_subvolumes failed");
-                        goto err;
-                }
-        }
+    conf->dir_spread_cnt = conf->subvolume_cnt;
+    GF_OPTION_INIT("directory-layout-spread", conf->dir_spread_cnt, uint32,
+                   err);
 
-        if (dict_get_str (this->options, "decommissioned-bricks", &temp_str) == 0) {
-                ret = dht_parse_decommissioned_bricks (this, conf, temp_str);
-                if (ret == -1)
-                        goto err;
-        }
+    GF_OPTION_INIT("assert-no-child-down", conf->assert_no_child_down, bool,
+                   err);
 
-        dht_init_regex (this, this->options, "rsync-hash-regex",
-                        &conf->rsync_regex, &conf->rsync_regex_valid, conf);
-        dht_init_regex (this, this->options, "extra-hash-regex",
-                        &conf->extra_regex, &conf->extra_regex_valid, conf);
+    GF_OPTION_INIT("readdir-optimize", conf->readdir_optimize, bool, err);
 
-        ret = dht_layouts_init (this, conf);
-        if (ret == -1) {
-                goto err;
-        }
+    GF_OPTION_INIT("lock-migration", conf->lock_migration_enabled, bool, err);
+
+    GF_OPTION_INIT("force-migration", conf->force_migration, bool, err);
 
+    if (defrag) {
+        defrag->lock_migration_enabled = conf->lock_migration_enabled;
 
-        conf->gen = 1;
+        GF_OPTION_INIT("rebalance-stats", defrag->stats, bool, err);
+        if (dict_get_str(this->options, "rebalance-filter", &temp_str) == 0) {
+            if (gf_defrag_pattern_list_fill(this, defrag, temp_str) == -1) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INVALID_OPTION,
+                       "Invalid option:"
+                       " Cannot parse rebalance-filter (%s)",
+                       temp_str);
 
-        this->local_pool = mem_pool_new (dht_local_t, 512);
-        if (!this->local_pool) {
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_NO_MEMORY,
-                        " DHT initialisation failed. "
-                        "failed to create local_t's memory pool");
                 goto err;
+            }
         }
-
-        GF_OPTION_INIT ("randomize-hash-range-by-gfid",
-                        conf->randomize_by_gfid, bool, err);
-
-        if (defrag) {
-                GF_OPTION_INIT ("rebal-throttle", temp_str, str, err);
-                if (temp_str) {
-                        ret = dht_configure_throttle (this, conf, temp_str);
-                        if (ret == -1)
-                                goto err;
-                }
+    }
+
+    /* option can be any one of percent or bytes */
+    conf->disk_unit = 0;
+    if (conf->min_free_disk < 100)
+        conf->disk_unit = 'p';
+
+    ret = dht_init_subvolumes(this, conf);
+    if (ret == -1) {
+        goto err;
+    }
+
+    if (cmd) {
+        ret = dht_init_local_subvolumes(this, conf);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_INIT_LOCAL_SUBVOL_FAILED,
+                   "dht_init_local_subvolumes failed");
+            goto err;
         }
-
-        GF_OPTION_INIT ("xattr-name", conf->xattr_name, str, err);
-        gf_asprintf (&conf->mds_xattr_key, "%s."DHT_MDS_STR, conf->xattr_name);
-        gf_asprintf (&conf->link_xattr_name, "%s."DHT_LINKFILE_STR,
-                     conf->xattr_name);
-        gf_asprintf (&conf->commithash_xattr_name, "%s."DHT_COMMITHASH_STR,
-                     conf->xattr_name);
-        gf_asprintf (&conf->wild_xattr_name, "%s*", conf->xattr_name);
-        if (!conf->link_xattr_name || !conf->wild_xattr_name) {
+    }
+
+    if (dict_get_str(this->options, "decommissioned-bricks", &temp_str) == 0) {
+        ret = dht_parse_decommissioned_bricks(this, conf, temp_str);
+        if (ret == -1)
+            goto err;
+    }
+
+    dht_init_regex(this, this->options, "rsync-hash-regex", &conf->rsync_regex,
+                   &conf->rsync_regex_valid, conf);
+    dht_init_regex(this, this->options, "extra-hash-regex", &conf->extra_regex,
+                   &conf->extra_regex_valid, conf);
+
+    ret = dht_layouts_init(this, conf);
+    if (ret == -1) {
+        goto err;
+    }
+
+    conf->gen = 1;
+
+    this->local_pool = mem_pool_new(dht_local_t, 512);
+    if (!this->local_pool) {
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               " DHT initialisation failed. "
+               "failed to create local_t's memory pool");
+        goto err;
+    }
+
+    GF_OPTION_INIT("randomize-hash-range-by-gfid", conf->randomize_by_gfid,
+                   bool, err);
+
+    if (defrag) {
+        GF_OPTION_INIT("rebal-throttle", temp_str, str, err);
+        if (temp_str) {
+            ret = dht_configure_throttle(this, conf, temp_str);
+            if (ret == -1)
                 goto err;
         }
+    }
 
-        GF_OPTION_INIT ("weighted-rebalance", conf->do_weighting, bool, err);
+    GF_OPTION_INIT("xattr-name", conf->xattr_name, str, err);
+    gf_asprintf(&conf->mds_xattr_key, "%s." DHT_MDS_STR, conf->xattr_name);
+    gf_asprintf(&conf->link_xattr_name, "%s." DHT_LINKFILE_STR,
+                conf->xattr_name);
+    gf_asprintf(&conf->commithash_xattr_name, "%s." DHT_COMMITHASH_STR,
+                conf->xattr_name);
+    gf_asprintf(&conf->wild_xattr_name, "%s*", conf->xattr_name);
+    if (!conf->link_xattr_name || !conf->wild_xattr_name) {
+        goto err;
+    }
 
-        conf->lock_pool = mem_pool_new (dht_lock_t, 512);
-        if (!conf->lock_pool) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_INIT_FAILED,
-                        "failed to create lock mem_pool, failing "
-                        "initialization");
-                goto err;
-        }
+    GF_OPTION_INIT("weighted-rebalance", conf->do_weighting, bool, err);
 
-        this->private = conf;
+    conf->lock_pool = mem_pool_new(dht_lock_t, 512);
+    if (!conf->lock_pool) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_INIT_FAILED,
+               "failed to create lock mem_pool, failing "
+               "initialization");
+        goto err;
+    }
 
-        if (dht_set_subvol_range(this))
-                goto err;
+    this->private = conf;
 
-        if (dht_init_methods (this))
-                goto err;
+    if (dht_set_subvol_range(this))
+        goto err;
 
-        return 0;
+    if (dht_init_methods(this))
+        goto err;
+
+    return 0;
 
 err:
-        if (conf) {
-                if (conf->file_layouts) {
-                        for (i = 0; i < conf->subvolume_cnt; i++) {
-                                GF_FREE (conf->file_layouts[i]);
-                        }
-                        GF_FREE (conf->file_layouts);
-                }
+    if (conf) {
+        if (conf->file_layouts) {
+            for (i = 0; i < conf->subvolume_cnt; i++) {
+                GF_FREE(conf->file_layouts[i]);
+            }
+            GF_FREE(conf->file_layouts);
+        }
 
-                GF_FREE (conf->subvolumes);
+        GF_FREE(conf->subvolumes);
 
-                GF_FREE (conf->subvolume_status);
+        GF_FREE(conf->subvolume_status);
 
-                GF_FREE (conf->du_stats);
+        GF_FREE(conf->du_stats);
 
-                GF_FREE (conf->defrag);
+        GF_FREE(conf->defrag);
 
-                GF_FREE (conf->xattr_name);
-                GF_FREE (conf->link_xattr_name);
-                GF_FREE (conf->wild_xattr_name);
-                GF_FREE (conf->mds_xattr_key);
+        GF_FREE(conf->xattr_name);
+        GF_FREE(conf->link_xattr_name);
+        GF_FREE(conf->wild_xattr_name);
+        GF_FREE(conf->mds_xattr_key);
 
-                if (conf->lock_pool)
-                        mem_pool_destroy (conf->lock_pool);
+        if (conf->lock_pool)
+            mem_pool_destroy(conf->lock_pool);
 
-                GF_FREE (conf);
-        }
+        GF_FREE(conf);
+    }
 
-        return -1;
+    return -1;
 }
 
-
 struct volume_options options[] = {
-        { .key  = {"lookup-unhashed"},
-          .value = {"auto", "yes", "no", "enable", "disable", "1", "0",
-                    "on", "off"},
-          .type = GF_OPTION_TYPE_STR,
-          .default_value = "on",
-          .description = "This option if set to ON, does a lookup through "
-          "all the sub-volumes, in case a lookup didn't return any result "
-          "from the hash subvolume. If set to OFF, it does not do a lookup "
-          "on the remaining subvolumes.",
-          .op_version = {1},
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE,
-          .level = OPT_STATUS_BASIC,
-        },
-        { .key = {"lookup-optimize"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "on",
-          .description = "This option if set to ON enables the optimization "
-          "of -ve lookups, by not doing a lookup on non-hashed subvolumes for "
-          "files, in case the hashed subvolume does not return any result. "
-          "This option disregards the lookup-unhashed setting, when enabled.",
-          .op_version = {GD_OP_VERSION_3_7_2},
-          .level = OPT_STATUS_ADVANCED,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-        { .key  = {"min-free-disk"},
-          .type = GF_OPTION_TYPE_PERCENT_OR_SIZET,
-          .default_value = "10%",
-          .description = "Percentage/Size of disk space, after which the "
-          "process starts balancing out the cluster, and logs will appear "
-          "in log files",
-          .op_version = {1},
-          .level = OPT_STATUS_BASIC,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-        { .key  = {"min-free-inodes"},
-          .type = GF_OPTION_TYPE_PERCENT,
-          .default_value = "5%",
-          .description = "after system has only N% of inodes, warnings "
-          "starts to appear in log files",
-          .op_version = {1},
-          .level = OPT_STATUS_BASIC,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-        { .key = {"unhashed-sticky-bit"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-        },
-        { .key = {"use-readdirp"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "on",
-          .description = "This option if set to ON, forces the use of "
-          "readdirp, and hence also displays the stats of the files.",
-          .level = OPT_STATUS_ADVANCED,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-        { .key = {"assert-no-child-down"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-          .description = "This option if set to ON, in the event of "
-          "CHILD_DOWN, will call exit."
-        },
-        { .key  = {"directory-layout-spread"},
-          .type = GF_OPTION_TYPE_INT,
-          .min  = 1,
-          .validate = GF_OPT_VALIDATE_MIN,
-          .description = "Specifies the directory layout spread. Takes number "
-                         "of subvolumes as default value.",
-
-          .op_version = {2},
-        },
-        { .key  = {"decommissioned-bricks"},
-          .type = GF_OPTION_TYPE_ANY,
-          .description = "This option if set to ON, decommissions "
-          "the brick, so that no new data is allowed to be created "
-          "on that brick.",
-          .level = OPT_STATUS_ADVANCED,
-        },
-        { .key  = {"rebalance-cmd"},
-          .type = GF_OPTION_TYPE_INT,
-        },
-        { .key = {"commit-hash"},
-          .type = GF_OPTION_TYPE_INT,
-        },
-        { .key = {"node-uuid"},
-          .type = GF_OPTION_TYPE_STR,
-        },
-        { .key = {"rebalance-stats"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-          .description = "This option if set to ON displays and logs the "
-          " time taken for migration of each file, during the rebalance "
-          "process. If set to OFF, the rebalance logs will only display the "
-          "time spent in each directory.",
-          .op_version = {2},
-          .level = OPT_STATUS_BASIC,
-        },
-        { .key = {"readdir-optimize"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-          .description = "This option if set to ON enables the optimization "
-          "that allows DHT to requests non-first subvolumes to filter out "
-          "directory entries.",
-          .op_version = {1},
-          .level = OPT_STATUS_ADVANCED,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-        { .key = {"rsync-hash-regex"},
-          .type = GF_OPTION_TYPE_STR,
-          /* Setting a default here doesn't work.  See dht_init_regex. */
-          .description = "Regular expression for stripping temporary-file "
-          "suffix and prefix used by rsync, to prevent relocation when the "
-          "file is renamed.",
-          .op_version = {3},
-          .level = OPT_STATUS_BASIC,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-        { .key = {"extra-hash-regex"},
-          .type = GF_OPTION_TYPE_STR,
-          /* Setting a default here doesn't work.  See dht_init_regex. */
-          .description = "Regular expression for stripping temporary-file "
-          "suffix and prefix used by an application, to prevent relocation when "
-          "the file is renamed.",
-          .op_version = {3},
-          .level = OPT_STATUS_BASIC,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-        { .key = {"rebalance-filter"},
-          .type = GF_OPTION_TYPE_STR,
-        },
-
-        { .key = {"xattr-name"},
-          .type = GF_OPTION_TYPE_STR,
-          .default_value = "trusted.glusterfs.dht",
-          .description = "Base for extended attributes used by this "
-          "translator instance, to avoid conflicts with others above or "
-          "below it.",
-          .op_version = {3},
-        },
-
-        { .key = {"weighted-rebalance"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "on",
-          .description = "When enabled, files will be allocated to bricks "
-          "with a probability proportional to their size.  Otherwise, all "
-          "bricks will have the same probability (legacy behavior).",
-          .op_version  = {GD_OP_VERSION_3_6_0},
-          .level = OPT_STATUS_BASIC,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-
-        /* NUFA option */
-        { .key  = {"local-volume-name"},
-          .type = GF_OPTION_TYPE_XLATOR
-        },
-
-        /* tier options */
-        { .key  = {"tier-pause"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-        },
-
-        { .key  = {"tier-promote-frequency"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "120",
-        },
-
-        { .key  = {"tier-demote-frequency"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "3600",
-        },
-
-        { .key  = {"write-freq-threshold"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "0",
-        },
-
-        { .key  = {"read-freq-threshold"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "0",
-        },
-        { .key         = {"watermark-hi"},
-          .type = GF_OPTION_TYPE_PERCENT,
-          .default_value = "90",
-        },
-        { .key         = {"watermark-low"},
-          .type = GF_OPTION_TYPE_PERCENT,
-          .default_value = "75",
-        },
-        { .key         = {"tier-mode"},
-          .type = GF_OPTION_TYPE_STR,
-          .default_value = "test",
-        },
-        { .key         = {"tier-compact"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-        },
-        { .key         = {"tier-hot-compact-frequency"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "604800",
-          .description = "Frequency to compact DBs on hot tier in system"
-        },
-        { .key         = {"tier-cold-compact-frequency"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "604800",
-          .description = "Frequency to compact DBs on cold tier in system"
-        },
-        { .key         = {"tier-max-mb"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "4000",
-        },
-        { .key         = {"tier-max-promote-file-size"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "0",
-        },
-        { .key         = {"tier-max-files"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "10000",
-        },
-        { .key         = {"tier-query-limit"},
-          .type = GF_OPTION_TYPE_INT,
-          .default_value = "100",
-        },
-        /* switch option */
-        { .key  = {"pattern.switch.case"},
-          .type = GF_OPTION_TYPE_ANY
-        },
-
-        { .key =  {"randomize-hash-range-by-gfid"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-          .description = "Use gfid of directory to determine the subvolume "
-          "from which hash ranges are allocated starting with 0. "
-          "Note that we still use a directory/file's name to determine the "
-          "subvolume to which it hashes",
-          .op_version  = {GD_OP_VERSION_3_6_0},
-        },
-
-        { .key =  {"rebal-throttle"},
-          .type = GF_OPTION_TYPE_STR,
-          .default_value = "normal",
-          .description = " Sets the maximum number of parallel file migrations "
-                         "allowed on a node during the rebalance operation. The"
-                         " default value is normal and allows a max of "
-                         "[($(processing units) - 4) / 2), 2]  files to be "
-                         "migrated at a time. Lazy will allow only one file to "
-                         "be migrated at a time and aggressive will allow "
-                         "max of [($(processing units) - 4) / 2), 4]",
-          .op_version  = {GD_OP_VERSION_3_7_0},
-          .level = OPT_STATUS_BASIC,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-
-        },
-
-        { .key =  {"lock-migration"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-          .description = " If enabled this feature will migrate the posix locks"
-                         " associated with a file during rebalance",
-          .op_version  = {GD_OP_VERSION_3_8_0},
-          .level = OPT_STATUS_ADVANCED,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-
-        { .key =  {"force-migration"},
-          .type = GF_OPTION_TYPE_BOOL,
-          .default_value = "off",
-          .description = "If disabled, rebalance will not migrate files that "
-                         "are being written to by an application",
-          .op_version  = {GD_OP_VERSION_4_0_0},
-          .level = OPT_STATUS_ADVANCED,
-          .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
-        },
-
-        { .key  = {NULL} },
+    {
+        .key = {"lookup-unhashed"},
+        .value = {"auto", "yes", "no", "enable", "disable", "1", "0", "on",
+                  "off"},
+        .type = GF_OPTION_TYPE_STR,
+        .default_value = "on",
+        .description =
+            "This option if set to ON, does a lookup through "
+            "all the sub-volumes, in case a lookup didn't return any result "
+            "from the hash subvolume. If set to OFF, it does not do a lookup "
+            "on the remaining subvolumes.",
+        .op_version = {1},
+        .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE,
+        .level = OPT_STATUS_BASIC,
+    },
+    {.key = {"lookup-optimize"},
+     .type = GF_OPTION_TYPE_BOOL,
+     .default_value = "on",
+     .description =
+         "This option if set to ON enables the optimization "
+         "of -ve lookups, by not doing a lookup on non-hashed subvolumes for "
+         "files, in case the hashed subvolume does not return any result. "
+         "This option disregards the lookup-unhashed setting, when enabled.",
+     .op_version = {GD_OP_VERSION_3_7_2},
+     .level = OPT_STATUS_ADVANCED,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+    {.key = {"min-free-disk"},
+     .type = GF_OPTION_TYPE_PERCENT_OR_SIZET,
+     .default_value = "10%",
+     .description =
+         "Percentage/Size of disk space, after which the "
+         "process starts balancing out the cluster, and logs will appear "
+         "in log files",
+     .op_version = {1},
+     .level = OPT_STATUS_BASIC,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+    {.key = {"min-free-inodes"},
+     .type = GF_OPTION_TYPE_PERCENT,
+     .default_value = "5%",
+     .description = "after system has only N% of inodes, warnings "
+                    "starts to appear in log files",
+     .op_version = {1},
+     .level = OPT_STATUS_BASIC,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+    {
+        .key = {"unhashed-sticky-bit"},
+        .type = GF_OPTION_TYPE_BOOL,
+        .default_value = "off",
+    },
+    {.key = {"use-readdirp"},
+     .type = GF_OPTION_TYPE_BOOL,
+     .default_value = "on",
+     .description = "This option if set to ON, forces the use of "
+                    "readdirp, and hence also displays the stats of the files.",
+     .level = OPT_STATUS_ADVANCED,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+    {.key = {"assert-no-child-down"},
+     .type = GF_OPTION_TYPE_BOOL,
+     .default_value = "off",
+     .description = "This option if set to ON, in the event of "
+                    "CHILD_DOWN, will call exit."},
+    {
+        .key = {"directory-layout-spread"},
+        .type = GF_OPTION_TYPE_INT,
+        .min = 1,
+        .validate = GF_OPT_VALIDATE_MIN,
+        .description = "Specifies the directory layout spread. Takes number "
+                       "of subvolumes as default value.",
+
+        .op_version = {2},
+    },
+    {
+        .key = {"decommissioned-bricks"},
+        .type = GF_OPTION_TYPE_ANY,
+        .description =
+            "This option if set to ON, decommissions "
+            "the brick, so that no new data is allowed to be created "
+            "on that brick.",
+        .level = OPT_STATUS_ADVANCED,
+    },
+    {
+        .key = {"rebalance-cmd"},
+        .type = GF_OPTION_TYPE_INT,
+    },
+    {
+        .key = {"commit-hash"},
+        .type = GF_OPTION_TYPE_INT,
+    },
+    {
+        .key = {"node-uuid"},
+        .type = GF_OPTION_TYPE_STR,
+    },
+    {
+        .key = {"rebalance-stats"},
+        .type = GF_OPTION_TYPE_BOOL,
+        .default_value = "off",
+        .description =
+            "This option if set to ON displays and logs the "
+            " time taken for migration of each file, during the rebalance "
+            "process. If set to OFF, the rebalance logs will only display the "
+            "time spent in each directory.",
+        .op_version = {2},
+        .level = OPT_STATUS_BASIC,
+    },
+    {.key = {"readdir-optimize"},
+     .type = GF_OPTION_TYPE_BOOL,
+     .default_value = "off",
+     .description =
+         "This option if set to ON enables the optimization "
+         "that allows DHT to requests non-first subvolumes to filter out "
+         "directory entries.",
+     .op_version = {1},
+     .level = OPT_STATUS_ADVANCED,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+    {.key = {"rsync-hash-regex"},
+     .type = GF_OPTION_TYPE_STR,
+     /* Setting a default here doesn't work.  See dht_init_regex. */
+     .description =
+         "Regular expression for stripping temporary-file "
+         "suffix and prefix used by rsync, to prevent relocation when the "
+         "file is renamed.",
+     .op_version = {3},
+     .level = OPT_STATUS_BASIC,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+    {.key = {"extra-hash-regex"},
+     .type = GF_OPTION_TYPE_STR,
+     /* Setting a default here doesn't work.  See dht_init_regex. */
+     .description =
+         "Regular expression for stripping temporary-file "
+         "suffix and prefix used by an application, to prevent relocation when "
+         "the file is renamed.",
+     .op_version = {3},
+     .level = OPT_STATUS_BASIC,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+    {
+        .key = {"rebalance-filter"},
+        .type = GF_OPTION_TYPE_STR,
+    },
+
+    {
+        .key = {"xattr-name"},
+        .type = GF_OPTION_TYPE_STR,
+        .default_value = "trusted.glusterfs.dht",
+        .description =
+            "Base for extended attributes used by this "
+            "translator instance, to avoid conflicts with others above or "
+            "below it.",
+        .op_version = {3},
+    },
+
+    {.key = {"weighted-rebalance"},
+     .type = GF_OPTION_TYPE_BOOL,
+     .default_value = "on",
+     .description =
+         "When enabled, files will be allocated to bricks "
+         "with a probability proportional to their size.  Otherwise, all "
+         "bricks will have the same probability (legacy behavior).",
+     .op_version = {GD_OP_VERSION_3_6_0},
+     .level = OPT_STATUS_BASIC,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+
+    /* NUFA option */
+    {.key = {"local-volume-name"}, .type = GF_OPTION_TYPE_XLATOR},
+
+    /* tier options */
+    {
+        .key = {"tier-pause"},
+        .type = GF_OPTION_TYPE_BOOL,
+        .default_value = "off",
+    },
+
+    {
+        .key = {"tier-promote-frequency"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "120",
+    },
+
+    {
+        .key = {"tier-demote-frequency"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "3600",
+    },
+
+    {
+        .key = {"write-freq-threshold"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "0",
+    },
+
+    {
+        .key = {"read-freq-threshold"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "0",
+    },
+    {
+        .key = {"watermark-hi"},
+        .type = GF_OPTION_TYPE_PERCENT,
+        .default_value = "90",
+    },
+    {
+        .key = {"watermark-low"},
+        .type = GF_OPTION_TYPE_PERCENT,
+        .default_value = "75",
+    },
+    {
+        .key = {"tier-mode"},
+        .type = GF_OPTION_TYPE_STR,
+        .default_value = "test",
+    },
+    {
+        .key = {"tier-compact"},
+        .type = GF_OPTION_TYPE_BOOL,
+        .default_value = "off",
+    },
+    {.key = {"tier-hot-compact-frequency"},
+     .type = GF_OPTION_TYPE_INT,
+     .default_value = "604800",
+     .description = "Frequency to compact DBs on hot tier in system"},
+    {.key = {"tier-cold-compact-frequency"},
+     .type = GF_OPTION_TYPE_INT,
+     .default_value = "604800",
+     .description = "Frequency to compact DBs on cold tier in system"},
+    {
+        .key = {"tier-max-mb"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "4000",
+    },
+    {
+        .key = {"tier-max-promote-file-size"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "0",
+    },
+    {
+        .key = {"tier-max-files"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "10000",
+    },
+    {
+        .key = {"tier-query-limit"},
+        .type = GF_OPTION_TYPE_INT,
+        .default_value = "100",
+    },
+    /* switch option */
+    {.key = {"pattern.switch.case"}, .type = GF_OPTION_TYPE_ANY},
+
+    {
+        .key = {"randomize-hash-range-by-gfid"},
+        .type = GF_OPTION_TYPE_BOOL,
+        .default_value = "off",
+        .description =
+            "Use gfid of directory to determine the subvolume "
+            "from which hash ranges are allocated starting with 0. "
+            "Note that we still use a directory/file's name to determine the "
+            "subvolume to which it hashes",
+        .op_version = {GD_OP_VERSION_3_6_0},
+    },
+
+    {.key = {"rebal-throttle"},
+     .type = GF_OPTION_TYPE_STR,
+     .default_value = "normal",
+     .description = " Sets the maximum number of parallel file migrations "
+                    "allowed on a node during the rebalance operation. The"
+                    " default value is normal and allows a max of "
+                    "[($(processing units) - 4) / 2), 2]  files to be "
+                    "migrated at a time. Lazy will allow only one file to "
+                    "be migrated at a time and aggressive will allow "
+                    "max of [($(processing units) - 4) / 2), 4]",
+     .op_version = {GD_OP_VERSION_3_7_0},
+     .level = OPT_STATUS_BASIC,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+
+    },
+
+    {.key = {"lock-migration"},
+     .type = GF_OPTION_TYPE_BOOL,
+     .default_value = "off",
+     .description = " If enabled this feature will migrate the posix locks"
+                    " associated with a file during rebalance",
+     .op_version = {GD_OP_VERSION_3_8_0},
+     .level = OPT_STATUS_ADVANCED,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+
+    {.key = {"force-migration"},
+     .type = GF_OPTION_TYPE_BOOL,
+     .default_value = "off",
+     .description = "If disabled, rebalance will not migrate files that "
+                    "are being written to by an application",
+     .op_version = {GD_OP_VERSION_4_0_0},
+     .level = OPT_STATUS_ADVANCED,
+     .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
+
+    {.key = {NULL}},
 };
diff --git a/xlators/cluster/dht/src/dht.c b/xlators/cluster/dht/src/dht.c
index 90962636d18..677905f236e 100644
--- a/xlators/cluster/dht/src/dht.c
+++ b/xlators/cluster/dht/src/dht.c
@@ -8,78 +8,72 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "statedump.h"
 #include "dht-common.h"
 
-class_methods_t class_methods = {
-        .init           = dht_init,
-        .fini           = dht_fini,
-        .reconfigure    = dht_reconfigure,
-        .notify         = dht_notify
-};
+class_methods_t class_methods = {.init = dht_init,
+                                 .fini = dht_fini,
+                                 .reconfigure = dht_reconfigure,
+                                 .notify = dht_notify};
 
 struct xlator_fops fops = {
-        .ipc         = dht_ipc,
-        .lookup      = dht_lookup,
-        .mknod       = dht_mknod,
-        .create      = dht_create,
+    .ipc = dht_ipc,
+    .lookup = dht_lookup,
+    .mknod = dht_mknod,
+    .create = dht_create,
 
-        .open        = dht_open,
-        .statfs      = dht_statfs,
-        .opendir     = dht_opendir,
-        .readdir     = dht_readdir,
-        .readdirp    = dht_readdirp,
-        .fsyncdir    = dht_fsyncdir,
-        .symlink     = dht_symlink,
-        .unlink      = dht_unlink,
-        .link        = dht_link,
-        .mkdir       = dht_mkdir,
-        .rmdir       = dht_rmdir,
-        .rename      = dht_rename,
-        .entrylk     = dht_entrylk,
-        .fentrylk    = dht_fentrylk,
+    .open = dht_open,
+    .statfs = dht_statfs,
+    .opendir = dht_opendir,
+    .readdir = dht_readdir,
+    .readdirp = dht_readdirp,
+    .fsyncdir = dht_fsyncdir,
+    .symlink = dht_symlink,
+    .unlink = dht_unlink,
+    .link = dht_link,
+    .mkdir = dht_mkdir,
+    .rmdir = dht_rmdir,
+    .rename = dht_rename,
+    .entrylk = dht_entrylk,
+    .fentrylk = dht_fentrylk,
 
-        /* Inode read operations */
-        .stat        = dht_stat,
-        .fstat       = dht_fstat,
-        .access      = dht_access,
-        .readlink    = dht_readlink,
-        .getxattr    = dht_getxattr,
-        .fgetxattr    = dht_fgetxattr,
-        .readv       = dht_readv,
-        .flush       = dht_flush,
-        .fsync       = dht_fsync,
-        .inodelk     = dht_inodelk,
-        .finodelk    = dht_finodelk,
-        .lk          = dht_lk,
-        .lease       = dht_lease,
+    /* Inode read operations */
+    .stat = dht_stat,
+    .fstat = dht_fstat,
+    .access = dht_access,
+    .readlink = dht_readlink,
+    .getxattr = dht_getxattr,
+    .fgetxattr = dht_fgetxattr,
+    .readv = dht_readv,
+    .flush = dht_flush,
+    .fsync = dht_fsync,
+    .inodelk = dht_inodelk,
+    .finodelk = dht_finodelk,
+    .lk = dht_lk,
+    .lease = dht_lease,
 
-        /* Inode write operations */
-        .fremovexattr = dht_fremovexattr,
-        .removexattr = dht_removexattr,
-        .setxattr    = dht_setxattr,
-        .fsetxattr   = dht_fsetxattr,
-        .truncate    = dht_truncate,
-        .ftruncate   = dht_ftruncate,
-        .writev      = dht_writev,
-        .xattrop     = dht_xattrop,
-        .fxattrop    = dht_fxattrop,
-        .setattr     = dht_setattr,
-        .fsetattr    = dht_fsetattr,
-	.fallocate   = dht_fallocate,
-	.discard     = dht_discard,
-        .zerofill    = dht_zerofill,
+    /* Inode write operations */
+    .fremovexattr = dht_fremovexattr,
+    .removexattr = dht_removexattr,
+    .setxattr = dht_setxattr,
+    .fsetxattr = dht_fsetxattr,
+    .truncate = dht_truncate,
+    .ftruncate = dht_ftruncate,
+    .writev = dht_writev,
+    .xattrop = dht_xattrop,
+    .fxattrop = dht_fxattrop,
+    .setattr = dht_setattr,
+    .fsetattr = dht_fsetattr,
+    .fallocate = dht_fallocate,
+    .discard = dht_discard,
+    .zerofill = dht_zerofill,
 };
 
 struct xlator_dumpops dumpops = {
-        .priv = dht_priv_dump,
-        .inodectx = dht_inodectx_dump,
+    .priv = dht_priv_dump,
+    .inodectx = dht_inodectx_dump,
 };
 
-
-struct xlator_cbks cbks = {
-        .release    = dht_release,
-//      .releasedir = dht_releasedir,
-        .forget     = dht_forget
-};
+struct xlator_cbks cbks = {.release = dht_release,
+                           //      .releasedir = dht_releasedir,
+                           .forget = dht_forget};
diff --git a/xlators/cluster/dht/src/nufa.c b/xlators/cluster/dht/src/nufa.c
index afa446584ba..b8077f972d1 100644
--- a/xlators/cluster/dht/src/nufa.c
+++ b/xlators/cluster/dht/src/nufa.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "dht-common.h"
 
 /* TODO: all 'TODO's in dht.c holds good */
@@ -16,673 +15,633 @@
 extern struct volume_options options[];
 
 int
-nufa_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                       int op_ret, int op_errno,
-                       inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                       struct iatt *postparent)
+nufa_local_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                      int op_ret, int op_errno, inode_t *inode,
+                      struct iatt *stbuf, dict_t *xattr,
+                      struct iatt *postparent)
 {
-        xlator_t     *subvol      = NULL;
-        char          is_linkfile = 0;
-        char          is_dir      = 0;
-        dht_conf_t   *conf        = NULL;
-        dht_local_t  *local       = NULL;
-        loc_t        *loc         = NULL;
-        int           i           = 0;
-        xlator_t     *prev        = NULL;
-        int           call_cnt    = 0;
-        int           ret         = 0;
-
-        conf  = this->private;
-
-        prev  = cookie;
-        local = frame->local;
-        loc   = &local->loc;
-
-        if (ENTRY_MISSING (op_ret, op_errno)) {
-                if (conf->search_unhashed) {
-                        local->op_errno = ENOENT;
-                        dht_lookup_everywhere (frame, this, loc);
-                        return 0;
-                }
+    xlator_t *subvol = NULL;
+    char is_linkfile = 0;
+    char is_dir = 0;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    loc_t *loc = NULL;
+    int i = 0;
+    xlator_t *prev = NULL;
+    int call_cnt = 0;
+    int ret = 0;
+
+    conf = this->private;
+
+    prev = cookie;
+    local = frame->local;
+    loc = &local->loc;
+
+    if (ENTRY_MISSING(op_ret, op_errno)) {
+        if (conf->search_unhashed) {
+            local->op_errno = ENOENT;
+            dht_lookup_everywhere(frame, this, loc);
+            return 0;
         }
-
-        if (op_ret == -1)
-                goto out;
-
-        is_linkfile = check_is_linkfile (inode, stbuf, xattr,
-                                         conf->link_xattr_name);
-        is_dir      = check_is_dir (inode, stbuf, xattr);
-
-        if (!is_dir && !is_linkfile) {
-                /* non-directory and not a linkfile */
-                ret = dht_layout_preset (this, prev, inode);
-                if (ret < 0) {
-                        gf_msg_debug (this->name, 0,
-                                      "could not set pre-set layout for subvol"
-                                      " %s", prev->name);
-                        op_ret   = -1;
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                goto out;
+    }
+
+    if (op_ret == -1)
+        goto out;
+
+    is_linkfile = check_is_linkfile(inode, stbuf, xattr, conf->link_xattr_name);
+    is_dir = check_is_dir(inode, stbuf, xattr);
+
+    if (!is_dir && !is_linkfile) {
+        /* non-directory and not a linkfile */
+        ret = dht_layout_preset(this, prev, inode);
+        if (ret < 0) {
+            gf_msg_debug(this->name, 0,
+                         "could not set pre-set layout for subvol"
+                         " %s",
+                         prev->name);
+            op_ret = -1;
+            op_errno = EINVAL;
+            goto err;
         }
 
-        if (is_dir) {
-                call_cnt        = conf->subvolume_cnt;
-                local->call_cnt = call_cnt;
-
-                local->inode = inode_ref (inode);
-                local->xattr = dict_ref (xattr);
-
-                local->op_ret = 0;
-                local->op_errno = 0;
-
-                local->layout = dht_layout_new (this, conf->subvolume_cnt);
-                if (!local->layout) {
-                        op_ret   = -1;
-                        op_errno = ENOMEM;
-                        goto err;
-                }
-
-                for (i = 0; i < call_cnt; i++) {
-                        STACK_WIND_COOKIE (frame, dht_lookup_dir_cbk,
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->lookup,
-                                           &local->loc, local->xattr_req);
-                }
-        }
+        goto out;
+    }
 
-        if (is_linkfile) {
-                subvol = dht_linkfile_subvol (this, inode, stbuf, xattr);
+    if (is_dir) {
+        call_cnt = conf->subvolume_cnt;
+        local->call_cnt = call_cnt;
 
-                if (!subvol) {
-                        gf_msg_debug (this->name, 0,
-                                      "linkfile has no link subvolume. path=%s",
-                                      loc->path);
-                        dht_lookup_everywhere (frame, this, loc);
-                        return 0;
-                }
+        local->inode = inode_ref(inode);
+        local->xattr = dict_ref(xattr);
 
-                STACK_WIND_COOKIE (frame, dht_lookup_linkfile_cbk, subvol,
-                                   subvol, subvol->fops->lookup,
-                                   &local->loc, local->xattr_req);
+        local->op_ret = 0;
+        local->op_errno = 0;
+
+        local->layout = dht_layout_new(this, conf->subvolume_cnt);
+        if (!local->layout) {
+            op_ret = -1;
+            op_errno = ENOMEM;
+            goto err;
         }
 
-        return 0;
+        for (i = 0; i < call_cnt; i++) {
+            STACK_WIND_COOKIE(frame, dht_lookup_dir_cbk, conf->subvolumes[i],
+                              conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->lookup, &local->loc,
+                              local->xattr_req);
+        }
+    }
 
-out:
-        if (!local->hashed_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              local->loc.path);
-                local->op_errno = ENOENT;
-                dht_lookup_everywhere (frame, this, loc);
-                return 0;
+    if (is_linkfile) {
+        subvol = dht_linkfile_subvol(this, inode, stbuf, xattr);
+
+        if (!subvol) {
+            gf_msg_debug(this->name, 0,
+                         "linkfile has no link subvolume. path=%s", loc->path);
+            dht_lookup_everywhere(frame, this, loc);
+            return 0;
         }
 
-        STACK_WIND_COOKIE (frame, dht_lookup_cbk, local->hashed_subvol,
-                           local->hashed_subvol,
-                           local->hashed_subvol->fops->lookup,
-                           &local->loc, local->xattr_req);
+        STACK_WIND_COOKIE(frame, dht_lookup_linkfile_cbk, subvol, subvol,
+                          subvol->fops->lookup, &local->loc, local->xattr_req);
+    }
 
+    return 0;
+
+out:
+    if (!local->hashed_subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     local->loc.path);
+        local->op_errno = ENOENT;
+        dht_lookup_everywhere(frame, this, loc);
         return 0;
+    }
+
+    STACK_WIND_COOKIE(frame, dht_lookup_cbk, local->hashed_subvol,
+                      local->hashed_subvol, local->hashed_subvol->fops->lookup,
+                      &local->loc, local->xattr_req);
+
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (lookup, frame, op_ret, op_errno,
-                          inode, stbuf, xattr, postparent);
-        return 0;
+    DHT_STACK_UNWIND(lookup, frame, op_ret, op_errno, inode, stbuf, xattr,
+                     postparent);
+    return 0;
 }
 
 int
-nufa_lookup (call_frame_t *frame, xlator_t *this,
-             loc_t *loc, dict_t *xattr_req)
+nufa_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req)
 {
-        xlator_t     *hashed_subvol = NULL;
-        xlator_t     *subvol = NULL;
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           ret    = -1;
-        int           op_errno = -1;
-        dht_layout_t *layout = NULL;
-        int           i = 0;
-        int           call_cnt = 0;
-
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_LOOKUP);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
+    xlator_t *hashed_subvol = NULL;
+    xlator_t *subvol = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    int op_errno = -1;
+    dht_layout_t *layout = NULL;
+    int i = 0;
+    int call_cnt = 0;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_LOOKUP);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    if (xattr_req) {
+        local->xattr_req = dict_ref(xattr_req);
+    } else {
+        local->xattr_req = dict_new();
+    }
+
+    hashed_subvol = dht_subvol_get_hashed(this, &local->loc);
+
+    local->hashed_subvol = hashed_subvol;
+
+    if (is_revalidate(loc)) {
+        layout = local->layout;
+        if (!layout) {
+            gf_msg_debug(this->name, 0,
+                         "revalidate lookup without cache. "
+                         "path=%s",
+                         loc->path);
+            op_errno = EINVAL;
+            goto err;
         }
 
-        if (xattr_req) {
-                local->xattr_req = dict_ref (xattr_req);
-        } else {
-                local->xattr_req = dict_new ();
+        if (layout->gen && (layout->gen < conf->gen)) {
+            gf_msg_debug(this->name, 0, "incomplete layout failure for path=%s",
+                         loc->path);
+            dht_layout_unref(this, local->layout);
+            goto do_fresh_lookup;
         }
 
-        hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
-
-        local->hashed_subvol = hashed_subvol;
-
-        if (is_revalidate (loc)) {
-                layout = local->layout;
-                if (!layout) {
-                        gf_msg_debug (this->name, 0,
-                                      "revalidate lookup without cache. "
-                                      "path=%s", loc->path);
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                if (layout->gen && (layout->gen < conf->gen)) {
-                        gf_msg_debug (this->name, 0,
-                                      "incomplete layout failure for path=%s",
-                                      loc->path);
-                        dht_layout_unref (this, local->layout);
-                        goto do_fresh_lookup;
-                }
-
-                local->inode = inode_ref (loc->inode);
-
-                local->call_cnt = layout->cnt;
-                call_cnt = local->call_cnt;
-
-                /* NOTE: we don't require 'trusted.glusterfs.dht.linkto' attribute,
-                 *       revalidates directly go to the cached-subvolume.
-                 */
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->xattr_name, 4 * 4);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dict value.");
-                        op_errno = -1;
-                        goto err;
-                }
-
-                for (i = 0; i < layout->cnt; i++) {
-                        subvol = layout->list[i].xlator;
-
-                        STACK_WIND_COOKIE (frame, dht_revalidate_cbk, subvol,
-                                           subvol, subvol->fops->lookup,
-                                           loc, local->xattr_req);
-
-                        if (!--call_cnt)
-                                break;
-                }
-        } else {
-        do_fresh_lookup:
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->xattr_name, 4 * 4);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dict value.");
-                        op_errno = -1;
-                        goto err;
-                }
-
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->link_xattr_name, 256);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "Failed to set dict value.");
-                        op_errno = -1;
-                        goto err;
-                }
-
-                /* Send it to only local volume */
-                STACK_WIND_COOKIE (frame, nufa_local_lookup_cbk,
-                                   ((xlator_t *)conf->private),
-                                   ((xlator_t *)conf->private),
-                                   ((xlator_t *)conf->private)->fops->lookup,
-                                   loc, local->xattr_req);
-        }
+        local->inode = inode_ref(loc->inode);
 
-        return 0;
+        local->call_cnt = layout->cnt;
+        call_cnt = local->call_cnt;
 
-err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL);
-        return 0;
-}
+        /* NOTE: we don't require 'trusted.glusterfs.dht.linkto' attribute,
+         *       revalidates directly go to the cached-subvolume.
+         */
+        ret = dict_set_uint32(local->xattr_req, conf->xattr_name, 4 * 4);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dict value.");
+            op_errno = -1;
+            goto err;
+        }
 
-int
-nufa_create_linkfile_create_cbk (call_frame_t *frame, void *cookie,
-                                 xlator_t *this, int op_ret, int op_errno,
-                                 inode_t *inode, struct iatt *stbuf,
-                                 struct iatt *preparent,
-                                 struct iatt *postparent, dict_t *xdata)
-{
-        dht_local_t  *local = NULL;
+        for (i = 0; i < layout->cnt; i++) {
+            subvol = layout->list[i].xlator;
 
-        local = frame->local;
+            STACK_WIND_COOKIE(frame, dht_revalidate_cbk, subvol, subvol,
+                              subvol->fops->lookup, loc, local->xattr_req);
 
-        if (op_ret == -1)
-                goto err;
+            if (!--call_cnt)
+                break;
+        }
+    } else {
+    do_fresh_lookup:
+        ret = dict_set_uint32(local->xattr_req, conf->xattr_name, 4 * 4);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dict value.");
+            op_errno = -1;
+            goto err;
+        }
+
+        ret = dict_set_uint32(local->xattr_req, conf->link_xattr_name, 256);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+                   "Failed to set dict value.");
+            op_errno = -1;
+            goto err;
+        }
 
-        STACK_WIND_COOKIE (frame, dht_create_cbk, local->cached_subvol,
-                           local->cached_subvol, local->cached_subvol->fops->create,
-                           &local->loc, local->flags, local->mode, local->umask,
-                           local->fd, local->params);
+        /* Send it to only local volume */
+        STACK_WIND_COOKIE(
+            frame, nufa_local_lookup_cbk, ((xlator_t *)conf->private),
+            ((xlator_t *)conf->private),
+            ((xlator_t *)conf->private)->fops->lookup, loc, local->xattr_req);
+    }
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (create, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL, NULL);
-        return 0;
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-nufa_create (call_frame_t *frame, xlator_t *this,
-             loc_t *loc, int32_t flags, mode_t mode,
-             mode_t umask, fd_t *fd, dict_t *params)
+nufa_create_linkfile_create_cbk(call_frame_t *frame, void *cookie,
+                                xlator_t *this, int op_ret, int op_errno,
+                                inode_t *inode, struct iatt *stbuf,
+                                struct iatt *preparent, struct iatt *postparent,
+                                dict_t *xdata)
 {
-        dht_local_t *local = NULL;
-        dht_conf_t  *conf  = NULL;
-        xlator_t    *subvol = NULL;
-        xlator_t    *avail_subvol = NULL;
-        int          op_errno = -1;
+    dht_local_t *local = NULL;
 
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
+    local = frame->local;
 
-        conf  = this->private;
+    if (op_ret == -1)
+        goto err;
 
-        dht_get_du_info (frame, this, loc);
+    STACK_WIND_COOKIE(frame, dht_create_cbk, local->cached_subvol,
+                      local->cached_subvol, local->cached_subvol->fops->create,
+                      &local->loc, local->flags, local->mode, local->umask,
+                      local->fd, local->params);
 
-        local = dht_local_init (frame, loc, fd, GF_FOP_CREATE);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
+    return 0;
 
-        subvol = dht_subvol_get_hashed (this, loc);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              loc->path);
-                op_errno = ENOENT;
-                goto err;
-        }
-
-        avail_subvol = conf->private;
-        if (dht_is_subvol_filled (this, (xlator_t *)conf->private)) {
-                avail_subvol =
-                        dht_free_disk_available_subvol (this,
-                                                        (xlator_t *)conf->private,
-                                                        local);
-        }
+err:
+    DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
+    return 0;
+}
 
-        if (subvol != avail_subvol) {
-                /* create a link file instead of actual file */
-                local->params = dict_ref (params);
-                local->mode = mode;
-                local->flags = flags;
-                local->umask = umask;
-                local->cached_subvol = avail_subvol;
-                dht_linkfile_create (frame, nufa_create_linkfile_create_cbk,
-                                     this, avail_subvol, subvol, loc);
-                return 0;
-        }
+int
+nufa_create(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+            mode_t mode, mode_t umask, fd_t *fd, dict_t *params)
+{
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *avail_subvol = NULL;
+    int op_errno = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+
+    conf = this->private;
+
+    dht_get_du_info(frame, this, loc);
+
+    local = dht_local_init(frame, loc, fd, GF_FOP_CREATE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = dht_subvol_get_hashed(this, loc);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     loc->path);
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    avail_subvol = conf->private;
+    if (dht_is_subvol_filled(this, (xlator_t *)conf->private)) {
+        avail_subvol = dht_free_disk_available_subvol(
+            this, (xlator_t *)conf->private, local);
+    }
+
+    if (subvol != avail_subvol) {
+        /* create a link file instead of actual file */
+        local->params = dict_ref(params);
+        local->mode = mode;
+        local->flags = flags;
+        local->umask = umask;
+        local->cached_subvol = avail_subvol;
+        dht_linkfile_create(frame, nufa_create_linkfile_create_cbk, this,
+                            avail_subvol, subvol, loc);
+        return 0;
+    }
 
-        gf_msg_trace (this->name, 0,
-                      "creating %s on %s", loc->path, subvol->name);
+    gf_msg_trace(this->name, 0, "creating %s on %s", loc->path, subvol->name);
 
-        STACK_WIND_COOKIE (frame, dht_create_cbk, subvol,
-                           subvol, subvol->fops->create,
-                           loc, flags, mode, umask, fd, params);
+    STACK_WIND_COOKIE(frame, dht_create_cbk, subvol, subvol,
+                      subvol->fops->create, loc, flags, mode, umask, fd,
+                      params);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (create, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-nufa_mknod_linkfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int op_ret, int op_errno, inode_t *inode,
-                         struct iatt *stbuf, struct iatt *preparent,
-                         struct iatt *postparent, dict_t *xdata)
+nufa_mknod_linkfile_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, inode_t *inode,
+                        struct iatt *stbuf, struct iatt *preparent,
+                        struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
-        if (!local || !local->cached_subvol) {
-                op_errno = EINVAL;
-                op_ret = -1;
-                goto err;
-        }
+    local = frame->local;
+    if (!local || !local->cached_subvol) {
+        op_errno = EINVAL;
+        op_ret = -1;
+        goto err;
+    }
 
-        if (op_ret >= 0) {
-                STACK_WIND_COOKIE (frame, dht_newfile_cbk,
-                            (void *)local->cached_subvol, local->cached_subvol,
-                            local->cached_subvol->fops->mknod,
-                            &local->loc, local->mode, local->rdev,
-                            local->umask, local->params);
+    if (op_ret >= 0) {
+        STACK_WIND_COOKIE(
+            frame, dht_newfile_cbk, (void *)local->cached_subvol,
+            local->cached_subvol, local->cached_subvol->fops->mknod,
+            &local->loc, local->mode, local->rdev, local->umask, local->params);
 
-                return 0;
-        }
+        return 0;
+    }
 err:
-        WIPE (postparent);
-        WIPE (preparent);
+    WIPE(postparent);
+    WIPE(preparent);
 
-        DHT_STACK_UNWIND (link, frame, op_ret, op_errno,
-                          inode, stbuf, preparent, postparent, xdata);
-        return 0;
+    DHT_STACK_UNWIND(link, frame, op_ret, op_errno, inode, stbuf, preparent,
+                     postparent, xdata);
+    return 0;
 }
 
-
 int
-nufa_mknod (call_frame_t *frame, xlator_t *this,
-            loc_t *loc, mode_t mode, dev_t rdev, mode_t umask, dict_t *params)
+nufa_mknod(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
+           dev_t rdev, mode_t umask, dict_t *params)
 {
-        dht_local_t *local = NULL;
-        dht_conf_t  *conf  = NULL;
-        xlator_t    *subvol = NULL;
-        xlator_t    *avail_subvol = NULL;
-        int          op_errno = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-
-        conf  = this->private;
-
-        dht_get_du_info (frame, this, loc);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_MKNOD);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = dht_subvol_get_hashed (this, loc);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              loc->path);
-                op_errno = ENOENT;
-                goto err;
-        }
-
-        /* Consider the disksize in consideration */
-        avail_subvol = conf->private;
-        if (dht_is_subvol_filled (this, (xlator_t *)conf->private)) {
-                avail_subvol =
-                        dht_free_disk_available_subvol (this,
-                                                        (xlator_t *)conf->private,
-                                                        local);
-        }
-
-        if (avail_subvol != subvol) {
-                /* Create linkfile first */
-
-                local->params = dict_ref (params);
-                local->mode = mode;
-                local->umask = umask;
-                local->rdev = rdev;
-                local->cached_subvol = avail_subvol;
-
-                dht_linkfile_create (frame, nufa_mknod_linkfile_cbk, this,
-                                     avail_subvol, subvol, loc);
-                return 0;
-        }
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *avail_subvol = NULL;
+    int op_errno = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+
+    conf = this->private;
+
+    dht_get_du_info(frame, this, loc);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_MKNOD);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = dht_subvol_get_hashed(this, loc);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     loc->path);
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    /* Consider the disksize in consideration */
+    avail_subvol = conf->private;
+    if (dht_is_subvol_filled(this, (xlator_t *)conf->private)) {
+        avail_subvol = dht_free_disk_available_subvol(
+            this, (xlator_t *)conf->private, local);
+    }
+
+    if (avail_subvol != subvol) {
+        /* Create linkfile first */
+
+        local->params = dict_ref(params);
+        local->mode = mode;
+        local->umask = umask;
+        local->rdev = rdev;
+        local->cached_subvol = avail_subvol;
+
+        dht_linkfile_create(frame, nufa_mknod_linkfile_cbk, this, avail_subvol,
+                            subvol, loc);
+        return 0;
+    }
 
-        gf_msg_trace (this->name, 0,
-                      "creating %s on %s", loc->path, subvol->name);
+    gf_msg_trace(this->name, 0, "creating %s on %s", loc->path, subvol->name);
 
-        STACK_WIND_COOKIE (frame, dht_newfile_cbk, (void *)subvol, subvol,
-                           subvol->fops->mknod, loc, mode, rdev, umask,
-                           params);
+    STACK_WIND_COOKIE(frame, dht_newfile_cbk, (void *)subvol, subvol,
+                      subvol->fops->mknod, loc, mode, rdev, umask, params);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (mknod, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(mknod, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 gf_boolean_t
-same_first_part (char *str1, char term1, char *str2, char term2)
+same_first_part(char *str1, char term1, char *str2, char term2)
 {
-        gf_boolean_t    ended1;
-        gf_boolean_t    ended2;
-
-        for (;;) {
-                ended1 = ((*str1 == '\0') || (*str1 == term1));
-                ended2 = ((*str2 == '\0') || (*str2 == term2));
-                if (ended1 && ended2) {
-                        return _gf_true;
-                }
-                if (ended1 || ended2 || (*str1 != *str2)) {
-                        return _gf_false;
-                }
-                ++str1;
-                ++str2;
+    gf_boolean_t ended1;
+    gf_boolean_t ended2;
+
+    for (;;) {
+        ended1 = ((*str1 == '\0') || (*str1 == term1));
+        ended2 = ((*str2 == '\0') || (*str2 == term2));
+        if (ended1 && ended2) {
+            return _gf_true;
         }
+        if (ended1 || ended2 || (*str1 != *str2)) {
+            return _gf_false;
+        }
+        ++str1;
+        ++str2;
+    }
 }
 
 typedef struct nufa_args {
-        xlator_t    *this;
-        char        *volname;
-        gf_boolean_t addr_match;
+    xlator_t *this;
+    char *volname;
+    gf_boolean_t addr_match;
 } nufa_args_t;
 
 static void
-nufa_find_local_brick (xlator_t *xl, void *data)
+nufa_find_local_brick(xlator_t *xl, void *data)
 {
-        nufa_args_t     *args = data;
-        xlator_t        *this = args->this;
-        char            *local_volname = args->volname;
-        gf_boolean_t    addr_match = args->addr_match;
-        char            *brick_host = NULL;
-        dht_conf_t      *conf = this->private;
-        int             ret = -1;
-
-        /*This means a local subvol was already found. We pick the first brick
-         * that is local*/
-        if (conf->private)
-                return;
-
-        if (strcmp (xl->name, local_volname) == 0) {
-                conf->private = xl;
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_SUBVOL_INFO,
-                        "Using specified subvol %s",
-                        local_volname);
-                return;
-        }
-
-        if (!addr_match)
-                return;
-
-        ret = dict_get_str (xl->options, "remote-host", &brick_host);
-        if ((ret == 0) &&
-            (gf_is_same_address (local_volname, brick_host) ||
-             gf_is_local_addr (brick_host))) {
-                conf->private = xl;
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_SUBVOL_INFO, "Using the first local "
-                        "subvol %s", xl->name);
-                return;
-        }
-
+    nufa_args_t *args = data;
+    xlator_t *this = args->this;
+    char *local_volname = args->volname;
+    gf_boolean_t addr_match = args->addr_match;
+    char *brick_host = NULL;
+    dht_conf_t *conf = this->private;
+    int ret = -1;
+
+    /*This means a local subvol was already found. We pick the first brick
+     * that is local*/
+    if (conf->private)
+        return;
+
+    if (strcmp(xl->name, local_volname) == 0) {
+        conf->private = xl;
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+               "Using specified subvol %s", local_volname);
+        return;
+    }
+
+    if (!addr_match)
+        return;
+
+    ret = dict_get_str(xl->options, "remote-host", &brick_host);
+    if ((ret == 0) && (gf_is_same_address(local_volname, brick_host) ||
+                       gf_is_local_addr(brick_host))) {
+        conf->private = xl;
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+               "Using the first local "
+               "subvol %s",
+               xl->name);
+        return;
+    }
 }
 
 static void
-nufa_to_dht (xlator_t *this)
+nufa_to_dht(xlator_t *this)
 {
-        GF_ASSERT (this);
-        GF_ASSERT (this->fops);
+    GF_ASSERT(this);
+    GF_ASSERT(this->fops);
 
-        this->fops->lookup = dht_lookup;
-        this->fops->create = dht_create;
-        this->fops->mknod  = dht_mknod;
+    this->fops->lookup = dht_lookup;
+    this->fops->create = dht_create;
+    this->fops->mknod = dht_mknod;
 }
 
 int
-nufa_find_local_subvol (xlator_t *this,
-                        void (*fn) (xlator_t *each, void* data), void *data)
+nufa_find_local_subvol(xlator_t *this, void (*fn)(xlator_t *each, void *data),
+                       void *data)
 {
-        int             ret = -1;
-        dht_conf_t      *conf = this->private;
-        xlator_list_t   *trav = NULL;
-        xlator_t        *parent = NULL;
-        xlator_t        *candidate = NULL;
-
-        xlator_foreach_depth_first (this, fn, data);
-        if (!conf->private) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_BRICK_ERROR, "Couldn't find a local "
-                        "brick");
-                return -1;
+    int ret = -1;
+    dht_conf_t *conf = this->private;
+    xlator_list_t *trav = NULL;
+    xlator_t *parent = NULL;
+    xlator_t *candidate = NULL;
+
+    xlator_foreach_depth_first(this, fn, data);
+    if (!conf->private) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_BRICK_ERROR,
+               "Couldn't find a local "
+               "brick");
+        return -1;
+    }
+
+    candidate = conf->private;
+    trav = candidate->parents;
+    while (trav) {
+        parent = trav->xlator;
+        if (strcmp(parent->type, "cluster/nufa") == 0) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+                   "Found local subvol, "
+                   "%s",
+                   candidate->name);
+            ret = 0;
+            conf->private = candidate;
+            break;
         }
 
-        candidate = conf->private;
-        trav = candidate->parents;
-        while (trav) {
-
-                parent = trav->xlator;
-                if (strcmp (parent->type, "cluster/nufa") == 0) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_SUBVOL_INFO, "Found local subvol, "
-                                "%s", candidate->name);
-                        ret = 0;
-                        conf->private = candidate;
-                        break;
-                }
-
-                candidate = parent;
-                trav = parent->parents;
-        }
+        candidate = parent;
+        trav = parent->parents;
+    }
 
-        return ret;
+    return ret;
 }
 
 int
-nufa_init (xlator_t *this)
+nufa_init(xlator_t *this)
 {
-        data_t        *data = NULL;
-        char          *local_volname = NULL;
-        int            ret = -1;
-        char           my_hostname[256];
-        gf_boolean_t   addr_match = _gf_false;
-        nufa_args_t    args = {0, };
-
-        ret = dht_init(this);
-        if (ret) {
-                return ret;
-        }
-
-        if ((data = dict_get (this->options, "local-volume-name"))) {
-                local_volname = data->data;
-
-        } else {
-                addr_match = _gf_true;
-                local_volname = "localhost";
-                ret = gethostname (my_hostname, 256);
-                if (ret == 0)
-                        local_volname = my_hostname;
-
-                else
-                        gf_msg (this->name, GF_LOG_WARNING, errno,
-                                DHT_MSG_GET_HOSTNAME_FAILED,
-                                "could not find hostname");
-
-        }
-
-        args.this = this;
-        args.volname = local_volname;
-        args.addr_match = addr_match;
-        ret = nufa_find_local_subvol (this, nufa_find_local_brick, &args);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_SUBVOL_INFO,
-                        "Unable to find local subvolume, switching "
-                        "to dht mode");
-                nufa_to_dht (this);
-        }
-        return 0;
+    data_t *data = NULL;
+    char *local_volname = NULL;
+    int ret = -1;
+    char my_hostname[256];
+    gf_boolean_t addr_match = _gf_false;
+    nufa_args_t args = {
+        0,
+    };
+
+    ret = dht_init(this);
+    if (ret) {
+        return ret;
+    }
+
+    if ((data = dict_get(this->options, "local-volume-name"))) {
+        local_volname = data->data;
+
+    } else {
+        addr_match = _gf_true;
+        local_volname = "localhost";
+        ret = gethostname(my_hostname, 256);
+        if (ret == 0)
+            local_volname = my_hostname;
+
+        else
+            gf_msg(this->name, GF_LOG_WARNING, errno,
+                   DHT_MSG_GET_HOSTNAME_FAILED, "could not find hostname");
+    }
+
+    args.this = this;
+    args.volname = local_volname;
+    args.addr_match = addr_match;
+    ret = nufa_find_local_subvol(this, nufa_find_local_brick, &args);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_SUBVOL_INFO,
+               "Unable to find local subvolume, switching "
+               "to dht mode");
+        nufa_to_dht(this);
+    }
+    return 0;
 }
 
 dht_methods_t dht_methods = {
-        .migration_get_dst_subvol = dht_migration_get_dst_subvol,
-        .migration_needed = dht_migration_needed,
-        .layout_search   = dht_layout_search,
-};
-
-class_methods_t class_methods = {
-        .init           = nufa_init,
-        .fini           = dht_fini,
-        .reconfigure    = dht_reconfigure,
-        .notify         = dht_notify
+    .migration_get_dst_subvol = dht_migration_get_dst_subvol,
+    .migration_needed = dht_migration_needed,
+    .layout_search = dht_layout_search,
 };
 
+class_methods_t class_methods = {.init = nufa_init,
+                                 .fini = dht_fini,
+                                 .reconfigure = dht_reconfigure,
+                                 .notify = dht_notify};
 
 struct xlator_fops fops = {
-        .lookup      = nufa_lookup,
-        .create      = nufa_create,
-        .mknod       = nufa_mknod,
-
-        .stat        = dht_stat,
-        .fstat       = dht_fstat,
-        .truncate    = dht_truncate,
-        .ftruncate   = dht_ftruncate,
-        .access      = dht_access,
-        .readlink    = dht_readlink,
-        .setxattr    = dht_setxattr,
-        .getxattr    = dht_getxattr,
-        .removexattr = dht_removexattr,
-        .open        = dht_open,
-        .readv       = dht_readv,
-        .writev      = dht_writev,
-        .flush       = dht_flush,
-        .fsync       = dht_fsync,
-        .statfs      = dht_statfs,
-        .lk          = dht_lk,
-        .opendir     = dht_opendir,
-        .readdir     = dht_readdir,
-        .readdirp    = dht_readdirp,
-        .fsyncdir    = dht_fsyncdir,
-        .symlink     = dht_symlink,
-        .unlink      = dht_unlink,
-        .link        = dht_link,
-        .mkdir       = dht_mkdir,
-        .rmdir       = dht_rmdir,
-        .rename      = dht_rename,
-        .inodelk     = dht_inodelk,
-        .finodelk    = dht_finodelk,
-        .entrylk     = dht_entrylk,
-        .fentrylk    = dht_fentrylk,
-        .xattrop     = dht_xattrop,
-        .fxattrop    = dht_fxattrop,
-        .setattr     = dht_setattr,
+    .lookup = nufa_lookup,
+    .create = nufa_create,
+    .mknod = nufa_mknod,
+
+    .stat = dht_stat,
+    .fstat = dht_fstat,
+    .truncate = dht_truncate,
+    .ftruncate = dht_ftruncate,
+    .access = dht_access,
+    .readlink = dht_readlink,
+    .setxattr = dht_setxattr,
+    .getxattr = dht_getxattr,
+    .removexattr = dht_removexattr,
+    .open = dht_open,
+    .readv = dht_readv,
+    .writev = dht_writev,
+    .flush = dht_flush,
+    .fsync = dht_fsync,
+    .statfs = dht_statfs,
+    .lk = dht_lk,
+    .opendir = dht_opendir,
+    .readdir = dht_readdir,
+    .readdirp = dht_readdirp,
+    .fsyncdir = dht_fsyncdir,
+    .symlink = dht_symlink,
+    .unlink = dht_unlink,
+    .link = dht_link,
+    .mkdir = dht_mkdir,
+    .rmdir = dht_rmdir,
+    .rename = dht_rename,
+    .inodelk = dht_inodelk,
+    .finodelk = dht_finodelk,
+    .entrylk = dht_entrylk,
+    .fentrylk = dht_fentrylk,
+    .xattrop = dht_xattrop,
+    .fxattrop = dht_fxattrop,
+    .setattr = dht_setattr,
 };
 
-
-struct xlator_cbks cbks = {
-        .forget     = dht_forget
-};
+struct xlator_cbks cbks = {.forget = dht_forget};
diff --git a/xlators/cluster/dht/src/switch.c b/xlators/cluster/dht/src/switch.c
index 8b66a09b822..ca9bfce5a8e 100644
--- a/xlators/cluster/dht/src/switch.c
+++ b/xlators/cluster/dht/src/switch.c
@@ -8,7 +8,6 @@
   cases as published by the Free Software Foundation.
 */
 
-
 #include "dht-common.h"
 #include "dht-mem-types.h"
 
@@ -20,907 +19,853 @@
 extern struct volume_options options[];
 
 struct switch_sched_array {
-        xlator_t *xl;
-        int32_t   eligible;
-        int32_t   considered;
+    xlator_t *xl;
+    int32_t eligible;
+    int32_t considered;
 };
 
 /* Select one of this struct based on the path's pattern match */
 struct switch_struct {
-        struct switch_struct      *next;
-        struct switch_sched_array *array;
-        int32_t                    node_index; /* Index of the node in
-                                                  this pattern. */
-        int32_t                    num_child;  /* Total num of child nodes
-                                                  with this pattern. */
-        char                       path_pattern[256];
+    struct switch_struct *next;
+    struct switch_sched_array *array;
+    int32_t node_index; /* Index of the node in
+                           this pattern. */
+    int32_t num_child;  /* Total num of child nodes
+                           with this pattern. */
+    char path_pattern[256];
 };
 
 /* TODO: all 'TODO's in dht.c holds good */
 /* This function should return child node as '*:subvolumes' is inserterd */
 
 static int32_t
-gf_switch_valid_child (xlator_t *this, const char *child)
+gf_switch_valid_child(xlator_t *this, const char *child)
 {
-        xlator_list_t *children = NULL;
-        int32_t        ret = 0;
-
-        children = this->children;
-        while (children) {
-                if (!strcmp (child, children->xlator->name)) {
-                        ret = 1;
-                        break;
-                }
-                children = children->next;
+    xlator_list_t *children = NULL;
+    int32_t ret = 0;
+
+    children = this->children;
+    while (children) {
+        if (!strcmp(child, children->xlator->name)) {
+            ret = 1;
+            break;
         }
+        children = children->next;
+    }
 
-        return ret;
+    return ret;
 }
 
 static xlator_t *
-get_switch_matching_subvol (const char *path, dht_conf_t *conf,
-                            xlator_t *hashed_subvol)
+get_switch_matching_subvol(const char *path, dht_conf_t *conf,
+                           xlator_t *hashed_subvol)
 {
-        struct switch_struct *cond      = NULL;
-        struct switch_struct *trav      = NULL;
-        char                 *pathname  = NULL;
-        int                   idx       = 0;
-        xlator_t             *subvol    = NULL;
-
-        cond = conf->private;
-        subvol = hashed_subvol;
-        if (!cond)
-                goto out;
-
-        pathname = gf_strdup (path);
-        if (!pathname)
-                goto out;
-
-        trav = cond;
-        while (trav) {
-                if (fnmatch (trav->path_pattern,
-                             pathname, FNM_NOESCAPE) == 0) {
-                        for (idx = 0; idx < trav->num_child; idx++) {
-                                if (trav->array[idx].xl == hashed_subvol)
-                                        goto out;
-                        }
-                        idx = trav->node_index++;
-                        trav->node_index %= trav->num_child;
-                        subvol = trav->array[idx].xl;
-                        goto out;
-                }
-                trav = trav->next;
+    struct switch_struct *cond = NULL;
+    struct switch_struct *trav = NULL;
+    char *pathname = NULL;
+    int idx = 0;
+    xlator_t *subvol = NULL;
+
+    cond = conf->private;
+    subvol = hashed_subvol;
+    if (!cond)
+        goto out;
+
+    pathname = gf_strdup(path);
+    if (!pathname)
+        goto out;
+
+    trav = cond;
+    while (trav) {
+        if (fnmatch(trav->path_pattern, pathname, FNM_NOESCAPE) == 0) {
+            for (idx = 0; idx < trav->num_child; idx++) {
+                if (trav->array[idx].xl == hashed_subvol)
+                    goto out;
+            }
+            idx = trav->node_index++;
+            trav->node_index %= trav->num_child;
+            subvol = trav->array[idx].xl;
+            goto out;
         }
+        trav = trav->next;
+    }
 out:
-        GF_FREE (pathname);
+    GF_FREE(pathname);
 
-        return subvol;
+    return subvol;
 }
 
-
 int
-switch_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int op_ret, int op_errno,
-                         inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                         struct iatt *postparent)
+switch_local_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                        int op_ret, int op_errno, inode_t *inode,
+                        struct iatt *stbuf, dict_t *xattr,
+                        struct iatt *postparent)
 {
-        xlator_t     *subvol      = NULL;
-        char          is_linkfile = 0;
-        char          is_dir      = 0;
-        dht_conf_t   *conf        = NULL;
-        dht_local_t  *local       = NULL;
-        loc_t        *loc         = NULL;
-        int           i           = 0;
-        xlator_t     *prev        = NULL;
-        int           call_cnt    = 0;
-        int           ret         = 0;
-
-        conf  = this->private;
-
-        prev  = cookie;
-        local = frame->local;
-        loc   = &local->loc;
-
-        if (ENTRY_MISSING (op_ret, op_errno)) {
-                if (conf->search_unhashed) {
-                        local->op_errno = ENOENT;
-                        dht_lookup_everywhere (frame, this, loc);
-                        return 0;
-                }
+    xlator_t *subvol = NULL;
+    char is_linkfile = 0;
+    char is_dir = 0;
+    dht_conf_t *conf = NULL;
+    dht_local_t *local = NULL;
+    loc_t *loc = NULL;
+    int i = 0;
+    xlator_t *prev = NULL;
+    int call_cnt = 0;
+    int ret = 0;
+
+    conf = this->private;
+
+    prev = cookie;
+    local = frame->local;
+    loc = &local->loc;
+
+    if (ENTRY_MISSING(op_ret, op_errno)) {
+        if (conf->search_unhashed) {
+            local->op_errno = ENOENT;
+            dht_lookup_everywhere(frame, this, loc);
+            return 0;
         }
-
-        if (op_ret == -1)
-                goto out;
-
-        is_linkfile = check_is_linkfile (inode, stbuf, xattr,
-                                         conf->link_xattr_name);
-        is_dir      = check_is_dir (inode, stbuf, xattr);
-
-        if (!is_dir && !is_linkfile) {
-                /* non-directory and not a linkfile */
-
-                ret = dht_layout_preset (this, prev, inode);
-                if (ret < 0) {
-                        gf_msg_debug (this->name, 0,
-                                      "could not set pre-set layout "
-                                      "for subvol %s",
-                                      prev->name);
-                        op_ret   = -1;
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                goto out;
+    }
+
+    if (op_ret == -1)
+        goto out;
+
+    is_linkfile = check_is_linkfile(inode, stbuf, xattr, conf->link_xattr_name);
+    is_dir = check_is_dir(inode, stbuf, xattr);
+
+    if (!is_dir && !is_linkfile) {
+        /* non-directory and not a linkfile */
+
+        ret = dht_layout_preset(this, prev, inode);
+        if (ret < 0) {
+            gf_msg_debug(this->name, 0,
+                         "could not set pre-set layout "
+                         "for subvol %s",
+                         prev->name);
+            op_ret = -1;
+            op_errno = EINVAL;
+            goto err;
         }
 
-        if (is_dir) {
-                call_cnt        = conf->subvolume_cnt;
-                local->call_cnt = call_cnt;
+        goto out;
+    }
 
-                local->inode = inode_ref (inode);
-                local->xattr = dict_ref (xattr);
+    if (is_dir) {
+        call_cnt = conf->subvolume_cnt;
+        local->call_cnt = call_cnt;
 
-                local->op_ret = 0;
-                local->op_errno = 0;
+        local->inode = inode_ref(inode);
+        local->xattr = dict_ref(xattr);
 
-                local->layout = dht_layout_new (this, conf->subvolume_cnt);
-                if (!local->layout) {
-                        op_ret   = -1;
-                        op_errno = ENOMEM;
-                        gf_msg_debug (this->name, 0,
-                                      "memory allocation failed :(");
-                        goto err;
-                }
+        local->op_ret = 0;
+        local->op_errno = 0;
 
-                for (i = 0; i < call_cnt; i++) {
-                        STACK_WIND_COOKIE (frame, dht_lookup_dir_cbk,
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i],
-                                           conf->subvolumes[i]->fops->lookup,
-                                           &local->loc, local->xattr_req);
-                }
+        local->layout = dht_layout_new(this, conf->subvolume_cnt);
+        if (!local->layout) {
+            op_ret = -1;
+            op_errno = ENOMEM;
+            gf_msg_debug(this->name, 0, "memory allocation failed :(");
+            goto err;
         }
 
-        if (is_linkfile) {
-                subvol = dht_linkfile_subvol (this, inode, stbuf, xattr);
+        for (i = 0; i < call_cnt; i++) {
+            STACK_WIND_COOKIE(frame, dht_lookup_dir_cbk, conf->subvolumes[i],
+                              conf->subvolumes[i],
+                              conf->subvolumes[i]->fops->lookup, &local->loc,
+                              local->xattr_req);
+        }
+    }
 
-                if (!subvol) {
-                        gf_msg_debug (this->name, 0,
-                                      "linkfile has no link subvolume.path=%s",
-                                      loc->path);
-                        dht_lookup_everywhere (frame, this, loc);
-                        return 0;
-                }
+    if (is_linkfile) {
+        subvol = dht_linkfile_subvol(this, inode, stbuf, xattr);
 
-                STACK_WIND_COOKIE (frame, dht_lookup_linkfile_cbk, subvol,
-                                   subvol, subvol->fops->lookup,
-                                   &local->loc, local->xattr_req);
+        if (!subvol) {
+            gf_msg_debug(this->name, 0,
+                         "linkfile has no link subvolume.path=%s", loc->path);
+            dht_lookup_everywhere(frame, this, loc);
+            return 0;
         }
 
-        return 0;
+        STACK_WIND_COOKIE(frame, dht_lookup_linkfile_cbk, subvol, subvol,
+                          subvol->fops->lookup, &local->loc, local->xattr_req);
+    }
+
+    return 0;
 
 out:
-        if (!local->hashed_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              local->loc.path);
-                local->op_errno = ENOENT;
-                dht_lookup_everywhere (frame, this, loc);
-                return 0;
-        }
+    if (!local->hashed_subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     local->loc.path);
+        local->op_errno = ENOENT;
+        dht_lookup_everywhere(frame, this, loc);
+        return 0;
+    }
 
-        STACK_WIND_COOKIE (frame, dht_lookup_cbk, local->hashed_subvol,
-                           local->hashed_subvol,
-                           local->hashed_subvol->fops->lookup,
-                           &local->loc, local->xattr_req);
+    STACK_WIND_COOKIE(frame, dht_lookup_cbk, local->hashed_subvol,
+                      local->hashed_subvol, local->hashed_subvol->fops->lookup,
+                      &local->loc, local->xattr_req);
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (lookup, frame, op_ret, op_errno,
-                          inode, stbuf, xattr, NULL);
-        return 0;
+    DHT_STACK_UNWIND(lookup, frame, op_ret, op_errno, inode, stbuf, xattr,
+                     NULL);
+    return 0;
 }
 
 int
-switch_lookup (call_frame_t *frame, xlator_t *this,
-               loc_t *loc, dict_t *xattr_req)
+switch_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc,
+              dict_t *xattr_req)
 {
-        xlator_t     *hashed_subvol = NULL;
-        xlator_t     *cached_subvol = NULL;
-        xlator_t     *subvol = NULL;
-        dht_local_t  *local  = NULL;
-        dht_conf_t   *conf = NULL;
-        int           ret    = -1;
-        int           op_errno = -1;
-        dht_layout_t *layout = NULL;
-        int           i = 0;
-        int           call_cnt = 0;
-
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (loc->inode, err);
-        VALIDATE_OR_GOTO (loc->path, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_LOOKUP);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
+    xlator_t *hashed_subvol = NULL;
+    xlator_t *cached_subvol = NULL;
+    xlator_t *subvol = NULL;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    int op_errno = -1;
+    dht_layout_t *layout = NULL;
+    int i = 0;
+    int call_cnt = 0;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(loc->inode, err);
+    VALIDATE_OR_GOTO(loc->path, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_LOOKUP);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    if (xattr_req) {
+        local->xattr_req = dict_ref(xattr_req);
+    } else {
+        local->xattr_req = dict_new();
+    }
+
+    hashed_subvol = dht_subvol_get_hashed(this, &local->loc);
+    cached_subvol = local->cached_subvol;
+
+    local->hashed_subvol = hashed_subvol;
+
+    if (is_revalidate(loc)) {
+        layout = local->layout;
+        if (!layout) {
+            gf_msg_debug(this->name, 0,
+                         "revalidate lookup without cache. path=%s", loc->path);
+            op_errno = EINVAL;
+            goto err;
         }
 
-        if (xattr_req) {
-                local->xattr_req = dict_ref (xattr_req);
-        } else {
-                local->xattr_req = dict_new ();
+        if (layout->gen && (layout->gen < conf->gen)) {
+            gf_msg_debug(this->name, 0, "incomplete layout failure for path=%s",
+                         loc->path);
+            dht_layout_unref(this, local->layout);
+            goto do_fresh_lookup;
         }
 
-        hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
-        cached_subvol = local->cached_subvol;
+        local->inode = inode_ref(loc->inode);
 
-        local->hashed_subvol = hashed_subvol;
+        local->call_cnt = layout->cnt;
+        call_cnt = local->call_cnt;
 
-        if (is_revalidate (loc)) {
-                layout = local->layout;
-                if (!layout) {
-                        gf_msg_debug(this->name, 0,
-                                     "revalidate lookup without cache. path=%s",
-                                     loc->path);
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                if (layout->gen && (layout->gen < conf->gen)) {
-                        gf_msg_debug (this->name, 0,
-                                      "incomplete layout failure for path=%s",
-                                      loc->path);
-                        dht_layout_unref (this, local->layout);
-                        goto do_fresh_lookup;
-                }
-
-                local->inode    = inode_ref (loc->inode);
-
-                local->call_cnt = layout->cnt;
-                call_cnt = local->call_cnt;
+        /* NOTE: we don't require 'trusted.glusterfs.dht.linkto'
+         * attribute, revalidates directly go to the cached-subvolume.
+         */
+        ret = dict_set_uint32(local->xattr_req, conf->xattr_name, 4 * 4);
+        if (ret < 0)
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                   "failed to set dict value for %s", conf->xattr_name);
 
-                /* NOTE: we don't require 'trusted.glusterfs.dht.linkto'
-                 * attribute, revalidates directly go to the cached-subvolume.
-                 */
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->xattr_name, 4 * 4);
-                if (ret < 0)
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "failed to set dict value for %s",
-                                conf->xattr_name);
+        for (i = 0; i < layout->cnt; i++) {
+            subvol = layout->list[i].xlator;
 
-                for (i = 0; i < layout->cnt; i++) {
-                        subvol = layout->list[i].xlator;
+            STACK_WIND_COOKIE(frame, dht_revalidate_cbk, subvol, subvol,
+                              subvol->fops->lookup, loc, local->xattr_req);
 
-                        STACK_WIND_COOKIE (frame, dht_revalidate_cbk, subvol,
-                                           subvol, subvol->fops->lookup,
-                                           loc, local->xattr_req);
+            if (!--call_cnt)
+                break;
+        }
+    } else {
+    do_fresh_lookup:
+        ret = dict_set_uint32(local->xattr_req, conf->xattr_name, 4 * 4);
+        if (ret < 0)
+            gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                   "failed to set dict value for %s", conf->xattr_name);
+
+        ret = dict_set_uint32(local->xattr_req, conf->link_xattr_name, 256);
+        if (ret < 0)
+            gf_msg(this->name, GF_LOG_WARNING, EINVAL, DHT_MSG_DICT_SET_FAILED,
+                   "failed to set dict value for %s", conf->link_xattr_name);
+
+        if (!hashed_subvol) {
+            gf_msg_debug(this->name, 0,
+                         "no subvolume in layout for path=%s, "
+                         "checking on all the subvols to see if "
+                         "it is a directory",
+                         loc->path);
+            call_cnt = conf->subvolume_cnt;
+            local->call_cnt = call_cnt;
+
+            local->layout = dht_layout_new(this, conf->subvolume_cnt);
+            if (!local->layout) {
+                op_errno = ENOMEM;
+                goto err;
+            }
+
+            for (i = 0; i < call_cnt; i++) {
+                STACK_WIND_COOKIE(frame, dht_lookup_dir_cbk,
+                                  conf->subvolumes[i], conf->subvolumes[i],
+                                  conf->subvolumes[i]->fops->lookup,
+                                  &local->loc, local->xattr_req);
+            }
+            return 0;
+        }
 
-                        if (!--call_cnt)
-                                break;
-                }
+        /*  */
+        cached_subvol = get_switch_matching_subvol(loc->path, conf,
+                                                   hashed_subvol);
+        if (cached_subvol == hashed_subvol) {
+            STACK_WIND_COOKIE(frame, dht_lookup_cbk, hashed_subvol,
+                              hashed_subvol, hashed_subvol->fops->lookup, loc,
+                              local->xattr_req);
         } else {
-        do_fresh_lookup:
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->xattr_name, 4 * 4);
-                if (ret < 0)
-                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "failed to set dict value for %s",
-                                conf->xattr_name);
-
-                ret = dict_set_uint32 (local->xattr_req,
-                                       conf->link_xattr_name, 256);
-                if (ret < 0)
-                        gf_msg (this->name, GF_LOG_WARNING, EINVAL,
-                                DHT_MSG_DICT_SET_FAILED,
-                                "failed to set dict value for %s",
-                                conf->link_xattr_name);
-
-                if (!hashed_subvol) {
-                        gf_msg_debug (this->name, 0,
-                                      "no subvolume in layout for path=%s, "
-                                      "checking on all the subvols to see if "
-                                      "it is a directory", loc->path);
-                        call_cnt        = conf->subvolume_cnt;
-                        local->call_cnt = call_cnt;
-
-                        local->layout = dht_layout_new (this,
-                                                        conf->subvolume_cnt);
-                        if (!local->layout) {
-                                op_errno = ENOMEM;
-                                goto err;
-                        }
-
-                        for (i = 0; i < call_cnt; i++) {
-                                STACK_WIND_COOKIE (frame, dht_lookup_dir_cbk,
-                                                   conf->subvolumes[i],
-                                                   conf->subvolumes[i],
-                                                   conf->subvolumes[i]->fops->lookup,
-                                                   &local->loc, local->xattr_req);
-                        }
-                        return 0;
-                }
-
-                /*  */
-                cached_subvol = get_switch_matching_subvol (loc->path, conf,
-                                                            hashed_subvol);
-                if (cached_subvol == hashed_subvol) {
-                        STACK_WIND_COOKIE (frame, dht_lookup_cbk, hashed_subvol,
-                                           hashed_subvol,
-                                           hashed_subvol->fops->lookup,
-                                           loc, local->xattr_req);
-                } else {
-                        STACK_WIND_COOKIE (frame, switch_local_lookup_cbk,
-                                           cached_subvol, cached_subvol,
-                                           cached_subvol->fops->lookup,
-                                           loc, local->xattr_req);
-                }
+            STACK_WIND_COOKIE(frame, switch_local_lookup_cbk, cached_subvol,
+                              cached_subvol, cached_subvol->fops->lookup, loc,
+                              local->xattr_req);
         }
+    }
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (lookup, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL);
-        return 0;
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-switch_create_linkfile_create_cbk (call_frame_t *frame, void *cookie,
-                                   xlator_t *this, int op_ret, int op_errno,
-                                   inode_t *inode, struct iatt *stbuf,
-                                   struct iatt *preparent,
-                                   struct iatt *postparent, dict_t *xdata)
+switch_create_linkfile_create_cbk(call_frame_t *frame, void *cookie,
+                                  xlator_t *this, int op_ret, int op_errno,
+                                  inode_t *inode, struct iatt *stbuf,
+                                  struct iatt *preparent,
+                                  struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        if (op_ret == -1)
-                goto err;
+    if (op_ret == -1)
+        goto err;
 
-        STACK_WIND_COOKIE (frame, dht_create_cbk, local->cached_subvol,
-                           local->cached_subvol, local->cached_subvol->fops->create,
-                           &local->loc, local->flags, local->mode, local->umask,
-                           local->fd, local->params);
+    STACK_WIND_COOKIE(frame, dht_create_cbk, local->cached_subvol,
+                      local->cached_subvol, local->cached_subvol->fops->create,
+                      &local->loc, local->flags, local->mode, local->umask,
+                      local->fd, local->params);
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (create, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
+    return 0;
 }
 
 int
-switch_create (call_frame_t *frame, xlator_t *this,
-               loc_t *loc, int32_t flags, mode_t mode,
-               mode_t umask, fd_t *fd, dict_t *params)
+switch_create(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+              mode_t mode, mode_t umask, fd_t *fd, dict_t *params)
 {
-        dht_local_t *local = NULL;
-        dht_conf_t  *conf  = NULL;
-        xlator_t    *subvol = NULL;
-        xlator_t    *avail_subvol = NULL;
-        int          op_errno = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-
-        conf  = this->private;
-
-        dht_get_du_info (frame, this, loc);
-
-        local = dht_local_init (frame, loc, fd, GF_FOP_CREATE);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = dht_subvol_get_hashed (this, loc);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              loc->path);
-                op_errno = ENOENT;
-                goto err;
-        }
-
-        avail_subvol = get_switch_matching_subvol (loc->path, conf, subvol);
-        if (dht_is_subvol_filled (this, avail_subvol)) {
-                avail_subvol =
-                        dht_free_disk_available_subvol (this, avail_subvol,
-                                                        local);
-        }
-
-        if (subvol != avail_subvol) {
-                /* create a link file instead of actual file */
-                local->mode = mode;
-                local->flags = flags;
-                local->umask = umask;
-                local->cached_subvol = avail_subvol;
-                dht_linkfile_create (frame, switch_create_linkfile_create_cbk,
-                                     this, avail_subvol, subvol, loc);
-                return 0;
-        }
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *avail_subvol = NULL;
+    int op_errno = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+
+    conf = this->private;
+
+    dht_get_du_info(frame, this, loc);
+
+    local = dht_local_init(frame, loc, fd, GF_FOP_CREATE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = dht_subvol_get_hashed(this, loc);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     loc->path);
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    avail_subvol = get_switch_matching_subvol(loc->path, conf, subvol);
+    if (dht_is_subvol_filled(this, avail_subvol)) {
+        avail_subvol = dht_free_disk_available_subvol(this, avail_subvol,
+                                                      local);
+    }
+
+    if (subvol != avail_subvol) {
+        /* create a link file instead of actual file */
+        local->mode = mode;
+        local->flags = flags;
+        local->umask = umask;
+        local->cached_subvol = avail_subvol;
+        dht_linkfile_create(frame, switch_create_linkfile_create_cbk, this,
+                            avail_subvol, subvol, loc);
+        return 0;
+    }
 
-        gf_msg_trace (this->name, 0,
-                      "creating %s on %s", loc->path, subvol->name);
+    gf_msg_trace(this->name, 0, "creating %s on %s", loc->path, subvol->name);
 
-        STACK_WIND_COOKIE (frame, dht_create_cbk, subvol, subvol,
-                           subvol->fops->create, loc, flags, mode, umask, fd,
-                           params);
+    STACK_WIND_COOKIE(frame, dht_create_cbk, subvol, subvol,
+                      subvol->fops->create, loc, flags, mode, umask, fd,
+                      params);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (create, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-switch_mknod_linkfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                           int op_ret, int op_errno, inode_t *inode,
-                           struct iatt *stbuf, struct iatt *preparent,
-                           struct iatt *postparent, dict_t *xdata)
+switch_mknod_linkfile_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                          int op_ret, int op_errno, inode_t *inode,
+                          struct iatt *stbuf, struct iatt *preparent,
+                          struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
+    dht_local_t *local = NULL;
 
-        local = frame->local;
-        if (!local || !local->cached_subvol) {
-                op_errno = EINVAL;
-                op_ret = -1;
-                goto err;
-        }
+    local = frame->local;
+    if (!local || !local->cached_subvol) {
+        op_errno = EINVAL;
+        op_ret = -1;
+        goto err;
+    }
 
-        if (op_ret >= 0) {
-                STACK_WIND_COOKIE (frame, dht_newfile_cbk,
-                            (void *)local->cached_subvol, local->cached_subvol,
-                            local->cached_subvol->fops->mknod,
-                            &local->loc, local->mode, local->rdev,
-                            local->umask, local->params);
+    if (op_ret >= 0) {
+        STACK_WIND_COOKIE(
+            frame, dht_newfile_cbk, (void *)local->cached_subvol,
+            local->cached_subvol, local->cached_subvol->fops->mknod,
+            &local->loc, local->mode, local->rdev, local->umask, local->params);
 
-                return 0;
-        }
-err:
-        DHT_STACK_UNWIND (link, frame, op_ret, op_errno,
-                          inode, stbuf, preparent, postparent, xdata);
         return 0;
+    }
+err:
+    DHT_STACK_UNWIND(link, frame, op_ret, op_errno, inode, stbuf, preparent,
+                     postparent, xdata);
+    return 0;
 }
 
-
 int
-switch_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
-              dev_t rdev, mode_t umask, dict_t *params)
+switch_mknod(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
+             dev_t rdev, mode_t umask, dict_t *params)
 {
-        dht_local_t *local = NULL;
-        dht_conf_t  *conf  = NULL;
-        xlator_t    *subvol = NULL;
-        xlator_t    *avail_subvol = NULL;
-        int          op_errno = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-
-        conf  = this->private;
-
-        dht_get_du_info (frame, this, loc);
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_MKNOD);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        subvol = dht_subvol_get_hashed (this, loc);
-        if (!subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no subvolume in layout for path=%s",
-                              loc->path);
-                op_errno = ENOENT;
-                goto err;
-        }
-
-        /* Consider the disksize in consideration */
-        avail_subvol = get_switch_matching_subvol (loc->path, conf, subvol);
-        if (dht_is_subvol_filled (this, avail_subvol)) {
-                avail_subvol =
-                        dht_free_disk_available_subvol (this, avail_subvol,
-                                                        local);
-        }
-
-        if (avail_subvol != subvol) {
-                /* Create linkfile first */
-
-                local->params = dict_ref (params);
-                local->mode = mode;
-                local->umask = umask;
-                local->rdev = rdev;
-                local->cached_subvol = avail_subvol;
-
-                dht_linkfile_create (frame, switch_mknod_linkfile_cbk,
-                                     this, avail_subvol, subvol, loc);
-                return 0;
-        }
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *subvol = NULL;
+    xlator_t *avail_subvol = NULL;
+    int op_errno = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+
+    conf = this->private;
+
+    dht_get_du_info(frame, this, loc);
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_MKNOD);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    subvol = dht_subvol_get_hashed(this, loc);
+    if (!subvol) {
+        gf_msg_debug(this->name, 0, "no subvolume in layout for path=%s",
+                     loc->path);
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    /* Consider the disksize in consideration */
+    avail_subvol = get_switch_matching_subvol(loc->path, conf, subvol);
+    if (dht_is_subvol_filled(this, avail_subvol)) {
+        avail_subvol = dht_free_disk_available_subvol(this, avail_subvol,
+                                                      local);
+    }
+
+    if (avail_subvol != subvol) {
+        /* Create linkfile first */
+
+        local->params = dict_ref(params);
+        local->mode = mode;
+        local->umask = umask;
+        local->rdev = rdev;
+        local->cached_subvol = avail_subvol;
+
+        dht_linkfile_create(frame, switch_mknod_linkfile_cbk, this,
+                            avail_subvol, subvol, loc);
+        return 0;
+    }
 
-        gf_msg_trace (this->name, 0,
-                      "creating %s on %s", loc->path, subvol->name);
+    gf_msg_trace(this->name, 0, "creating %s on %s", loc->path, subvol->name);
 
-        STACK_WIND_COOKIE (frame, dht_newfile_cbk, (void *)subvol, subvol,
-                           subvol->fops->mknod, loc, mode, rdev, umask,
-                           params);
+    STACK_WIND_COOKIE(frame, dht_newfile_cbk, (void *)subvol, subvol,
+                      subvol->fops->mknod, loc, mode, rdev, umask, params);
 
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (mknod, frame, -1, op_errno,
-                          NULL, NULL, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(mknod, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 void
-switch_fini (xlator_t *this)
+switch_fini(xlator_t *this)
 {
-        dht_conf_t           *conf = NULL;
-        struct switch_struct *trav = NULL;
-        struct switch_struct *prev = NULL;
-
-        conf = this->private;
-
-        if (conf) {
-                trav = (struct switch_struct *)conf->private;
-                conf->private = NULL;
-                while (trav) {
-                        GF_FREE (trav->array);
-                        prev = trav;
-                        trav = trav->next;
-                        GF_FREE (prev);
-                }
+    dht_conf_t *conf = NULL;
+    struct switch_struct *trav = NULL;
+    struct switch_struct *prev = NULL;
+
+    conf = this->private;
+
+    if (conf) {
+        trav = (struct switch_struct *)conf->private;
+        conf->private = NULL;
+        while (trav) {
+            GF_FREE(trav->array);
+            prev = trav;
+            trav = trav->next;
+            GF_FREE(prev);
         }
+    }
 
-        dht_fini(this);
+    dht_fini(this);
 }
 
 int
-set_switch_pattern (xlator_t *this, dht_conf_t *conf,
-                    const char *pattern_str)
+set_switch_pattern(xlator_t *this, dht_conf_t *conf, const char *pattern_str)
 {
-        int                         flag = 0;
-        int                         idx = 0;
-        int                         index = 0;
-        int                         child_count = 0;
-        char                       *tmp = NULL;
-        char                       *tmp1 = NULL;
-        char                       *child = NULL;
-        char                       *tmp_str = NULL;
-        char                       *tmp_str1 = NULL;
-        char                       *dup_str = NULL;
-        char                       *dup_childs = NULL;
-        char                       *switch_str = NULL;
-        char                       *pattern = NULL;
-        char                       *childs = NULL;
-        char                       *option_string = NULL;
-        size_t                      pattern_length;
-        struct switch_struct       *switch_buf = NULL;
-        struct switch_struct       *switch_opt = NULL;
-        struct switch_struct       *trav = NULL;
-        struct switch_sched_array  *switch_buf_array = NULL;
-        xlator_list_t              *trav_xl = NULL;
-
-        trav_xl = this->children;
-        while (trav_xl) {
-                index++;
-                trav_xl = trav_xl->next;
+    int flag = 0;
+    int idx = 0;
+    int index = 0;
+    int child_count = 0;
+    char *tmp = NULL;
+    char *tmp1 = NULL;
+    char *child = NULL;
+    char *tmp_str = NULL;
+    char *tmp_str1 = NULL;
+    char *dup_str = NULL;
+    char *dup_childs = NULL;
+    char *switch_str = NULL;
+    char *pattern = NULL;
+    char *childs = NULL;
+    char *option_string = NULL;
+    size_t pattern_length;
+    struct switch_struct *switch_buf = NULL;
+    struct switch_struct *switch_opt = NULL;
+    struct switch_struct *trav = NULL;
+    struct switch_sched_array *switch_buf_array = NULL;
+    xlator_list_t *trav_xl = NULL;
+
+    trav_xl = this->children;
+    while (trav_xl) {
+        index++;
+        trav_xl = trav_xl->next;
+    }
+    child_count = index;
+    switch_buf_array = GF_CALLOC((index + 1), sizeof(struct switch_sched_array),
+                                 gf_switch_mt_switch_sched_array);
+    if (!switch_buf_array)
+        goto err;
+
+    trav_xl = this->children;
+    index = 0;
+
+    while (trav_xl) {
+        switch_buf_array[index].xl = trav_xl->xlator;
+        switch_buf_array[index].eligible = 1;
+        trav_xl = trav_xl->next;
+        index++;
+    }
+
+    /*  *jpg:child1,child2;*mpg:child3;*:child4,child5,child6 */
+
+    /* Get the pattern for considering switch case.
+       "option block-size *avi:10MB" etc */
+    option_string = gf_strdup(pattern_str);
+    switch_str = strtok_r(option_string, ";", &tmp_str);
+    while (switch_str) {
+        dup_str = gf_strdup(switch_str);
+        switch_opt = GF_CALLOC(1, sizeof(struct switch_struct),
+                               gf_switch_mt_switch_struct);
+        if (!switch_opt) {
+            GF_FREE(dup_str);
+            goto err;
         }
-        child_count = index;
-        switch_buf_array = GF_CALLOC ((index + 1),
-                                      sizeof (struct switch_sched_array),
-                                      gf_switch_mt_switch_sched_array);
-        if (!switch_buf_array)
-                goto err;
-
-        trav_xl = this->children;
-        index = 0;
 
-        while (trav_xl) {
-                switch_buf_array[index].xl = trav_xl->xlator;
-                switch_buf_array[index].eligible = 1;
-                trav_xl = trav_xl->next;
-                index++;
+        pattern = strtok_r(dup_str, ":", &tmp_str1);
+        childs = strtok_r(NULL, ":", &tmp_str1);
+        if (strncmp(pattern, "*", 2) == 0) {
+            gf_msg("switch", GF_LOG_INFO, 0, DHT_MSG_SWITCH_PATTERN_INFO,
+                   "'*' pattern will be taken by default "
+                   "for all the unconfigured child nodes,"
+                   " hence neglecting current option");
+            switch_str = strtok_r(NULL, ";", &tmp_str);
+            GF_FREE(switch_opt);
+            switch_opt = NULL;
+            GF_FREE(dup_str);
+            continue;
         }
-
-        /*  *jpg:child1,child2;*mpg:child3;*:child4,child5,child6 */
-
-        /* Get the pattern for considering switch case.
-           "option block-size *avi:10MB" etc */
-        option_string = gf_strdup (pattern_str);
-        switch_str = strtok_r (option_string, ";", &tmp_str);
-        while (switch_str) {
-                dup_str = gf_strdup (switch_str);
-                switch_opt = GF_CALLOC (1, sizeof (struct switch_struct),
-                                        gf_switch_mt_switch_struct);
-                if (!switch_opt) {
-                        GF_FREE (dup_str);
-                        goto err;
-                }
-
-                pattern = strtok_r (dup_str, ":", &tmp_str1);
-                childs = strtok_r (NULL, ":", &tmp_str1);
-                if (strncmp (pattern, "*", 2) == 0) {
-                        gf_msg ("switch", GF_LOG_INFO, 0,
-                                DHT_MSG_SWITCH_PATTERN_INFO,
-                                "'*' pattern will be taken by default "
-                                "for all the unconfigured child nodes,"
-                                " hence neglecting current option");
-                        switch_str = strtok_r (NULL, ";", &tmp_str);
-                        GF_FREE (switch_opt);
-                        switch_opt = NULL;
-                        GF_FREE (dup_str);
-                        continue;
-                }
-                GF_FREE (dup_str);
-
-                pattern_length = strlen (pattern);
-                if (pattern_length >= (sizeof (switch_opt->path_pattern))) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_SET_SWITCH_PATTERN_ERROR,
-                                "Pattern (%s) too long", pattern);
-                        goto err;
-                }
-                memcpy (switch_opt->path_pattern, pattern, pattern_length);
-                switch_opt->path_pattern[pattern_length] = '\0';
-
-                if (childs) {
-                        dup_childs = gf_strdup (childs);
-                        child = strtok_r (dup_childs, ",", &tmp);
-                        while (child) {
-                                if (gf_switch_valid_child (this, child)) {
-                                        idx++;
-                                        child = strtok_r (NULL, ",", &tmp);
-                                } else {
-                                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                                DHT_MSG_SUBVOL_ERROR,
-                                                "%s is not a subvolume of %s. "
-                                                "pattern can only be scheduled "
-                                                "only to a subvolume of %s",
-                                                child, this->name, this->name);
-                                        GF_FREE (dup_childs);
-                                        goto err;
-                                }
-                        }
-                        GF_FREE (dup_childs);
-                        child = strtok_r (childs, ",", &tmp1);
-                        switch_opt->num_child = idx;
-                        switch_opt->array = GF_CALLOC (1, (idx *
-                                                           sizeof (struct switch_sched_array)),
-                                                       gf_switch_mt_switch_sched_array);
-                        if (!switch_opt->array)
-                                goto err;
-                        idx = 0;
-                        while (child) {
-                                for (index = 0; index < child_count; index++) {
-                                        if (strcmp (switch_buf_array[index].xl->name,
-                                                    child) == 0) {
-                                                gf_msg_debug ("switch", 0,
-                                                              "'%s' pattern will be "
-                                                              "scheduled to \"%s\"",
-                                                              switch_opt->path_pattern, child);
-                                                /*
-                                                  if (switch_buf_array[index-1].considered) {
-                                                  gf_msg_debug ("switch", 0,
-                                                  "ambiguity found, exiting");
-                                                  return -1;
-                                                  }
-                                                */
-                                                switch_opt->array[idx].xl = switch_buf_array[index].xl;
-                                                switch_buf_array[index].considered = 1;
-                                                idx++;
-                                                break;
-                                        }
-                                }
-                                child = strtok_r (NULL, ",", &tmp1);
-                        }
+        GF_FREE(dup_str);
+
+        pattern_length = strlen(pattern);
+        if (pattern_length >= (sizeof(switch_opt->path_pattern))) {
+            gf_msg(this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_SET_SWITCH_PATTERN_ERROR, "Pattern (%s) too long",
+                   pattern);
+            goto err;
+        }
+        memcpy(switch_opt->path_pattern, pattern, pattern_length);
+        switch_opt->path_pattern[pattern_length] = '\0';
+
+        if (childs) {
+            dup_childs = gf_strdup(childs);
+            child = strtok_r(dup_childs, ",", &tmp);
+            while (child) {
+                if (gf_switch_valid_child(this, child)) {
+                    idx++;
+                    child = strtok_r(NULL, ",", &tmp);
                 } else {
-                        /* error */
-                        gf_msg ("switch", GF_LOG_ERROR, 0,
-                                DHT_MSG_SET_SWITCH_PATTERN_ERROR,
-                                "Check \"scheduler.switch.case\" "
-                                "option in unify volume. Exiting");
-                        goto err;
+                    gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_SUBVOL_ERROR,
+                           "%s is not a subvolume of %s. "
+                           "pattern can only be scheduled "
+                           "only to a subvolume of %s",
+                           child, this->name, this->name);
+                    GF_FREE(dup_childs);
+                    goto err;
                 }
-
-                /* Link it to the main structure */
-                if (switch_buf) {
-                        /* there are already few entries */
-                        trav = switch_buf;
-                        while (trav->next)
-                                trav = trav->next;
-                        trav->next = switch_opt;
-                } else {
-                        /* First entry */
-                        switch_buf = switch_opt;
+            }
+            GF_FREE(dup_childs);
+            child = strtok_r(childs, ",", &tmp1);
+            switch_opt->num_child = idx;
+            switch_opt->array = GF_CALLOC(
+                1, (idx * sizeof(struct switch_sched_array)),
+                gf_switch_mt_switch_sched_array);
+            if (!switch_opt->array)
+                goto err;
+            idx = 0;
+            while (child) {
+                for (index = 0; index < child_count; index++) {
+                    if (strcmp(switch_buf_array[index].xl->name, child) == 0) {
+                        gf_msg_debug("switch", 0,
+                                     "'%s' pattern will be "
+                                     "scheduled to \"%s\"",
+                                     switch_opt->path_pattern, child);
+                        /*
+                          if (switch_buf_array[index-1].considered) {
+                          gf_msg_debug ("switch", 0,
+                          "ambiguity found, exiting");
+                          return -1;
+                          }
+                        */
+                        switch_opt->array[idx].xl = switch_buf_array[index].xl;
+                        switch_buf_array[index].considered = 1;
+                        idx++;
+                        break;
+                    }
                 }
-                switch_opt = NULL;
-                switch_str = strtok_r (NULL, ";", &tmp_str);
+                child = strtok_r(NULL, ",", &tmp1);
+            }
+        } else {
+            /* error */
+            gf_msg("switch", GF_LOG_ERROR, 0, DHT_MSG_SET_SWITCH_PATTERN_ERROR,
+                   "Check \"scheduler.switch.case\" "
+                   "option in unify volume. Exiting");
+            goto err;
         }
 
-        /* Now, all the pattern based considerations done, so for all the
-         * remaining pattern, '*' to all the remaining child nodes
-         */
-        {
-                for (index=0; index < child_count; index++) {
-                        /* check for considered flag */
-                        if (switch_buf_array[index].considered)
-                                continue;
-                        flag++;
-                }
-                if (!flag) {
-                        gf_msg ("switch", GF_LOG_ERROR, 0,
-                                DHT_MSG_SET_SWITCH_PATTERN_ERROR,
-                                "No nodes left for pattern '*'. Exiting");
-                        goto err;
-                }
-                switch_opt = GF_CALLOC (1, sizeof (struct switch_struct),
-                                        gf_switch_mt_switch_struct);
-                if (!switch_opt)
-                        goto err;
-
-                /* Add the '*' pattern to the array */
-                memcpy (switch_opt->path_pattern, "*", 2);
-                switch_opt->num_child = flag;
-                switch_opt->array =
-                        GF_CALLOC (1,
-                                   flag * sizeof (struct switch_sched_array),
-                                   gf_switch_mt_switch_sched_array);
-                if (!switch_opt->array)
-                        goto err;
-                flag = 0;
-                for (index=0; index < child_count; index++) {
-                        /* check for considered flag */
-                        if (switch_buf_array[index].considered)
-                                continue;
-                        gf_msg_debug ("switch", 0, "'%s'"
-                                      " pattern will be scheduled to \"%s\"",
-                                      switch_opt->path_pattern,
-                                      switch_buf_array[index].xl->name);
-
-                        switch_opt->array[flag].xl =
-                                switch_buf_array[index].xl;
-                        switch_buf_array[index].considered = 1;
-                        flag++;
-                }
-                if (switch_buf) {
-                        /* there are already few entries */
-                        trav = switch_buf;
-                        while (trav->next)
-                                trav = trav->next;
-                        trav->next = switch_opt;
-                } else {
-                        /* First entry */
-                        switch_buf = switch_opt;
-                }
-                switch_opt = NULL;
+        /* Link it to the main structure */
+        if (switch_buf) {
+            /* there are already few entries */
+            trav = switch_buf;
+            while (trav->next)
+                trav = trav->next;
+            trav->next = switch_opt;
+        } else {
+            /* First entry */
+            switch_buf = switch_opt;
+        }
+        switch_opt = NULL;
+        switch_str = strtok_r(NULL, ";", &tmp_str);
+    }
+
+    /* Now, all the pattern based considerations done, so for all the
+     * remaining pattern, '*' to all the remaining child nodes
+     */
+    {
+        for (index = 0; index < child_count; index++) {
+            /* check for considered flag */
+            if (switch_buf_array[index].considered)
+                continue;
+            flag++;
+        }
+        if (!flag) {
+            gf_msg("switch", GF_LOG_ERROR, 0, DHT_MSG_SET_SWITCH_PATTERN_ERROR,
+                   "No nodes left for pattern '*'. Exiting");
+            goto err;
+        }
+        switch_opt = GF_CALLOC(1, sizeof(struct switch_struct),
+                               gf_switch_mt_switch_struct);
+        if (!switch_opt)
+            goto err;
+
+        /* Add the '*' pattern to the array */
+        memcpy(switch_opt->path_pattern, "*", 2);
+        switch_opt->num_child = flag;
+        switch_opt->array = GF_CALLOC(1,
+                                      flag * sizeof(struct switch_sched_array),
+                                      gf_switch_mt_switch_sched_array);
+        if (!switch_opt->array)
+            goto err;
+        flag = 0;
+        for (index = 0; index < child_count; index++) {
+            /* check for considered flag */
+            if (switch_buf_array[index].considered)
+                continue;
+            gf_msg_debug("switch", 0,
+                         "'%s'"
+                         " pattern will be scheduled to \"%s\"",
+                         switch_opt->path_pattern,
+                         switch_buf_array[index].xl->name);
+
+            switch_opt->array[flag].xl = switch_buf_array[index].xl;
+            switch_buf_array[index].considered = 1;
+            flag++;
+        }
+        if (switch_buf) {
+            /* there are already few entries */
+            trav = switch_buf;
+            while (trav->next)
+                trav = trav->next;
+            trav->next = switch_opt;
+        } else {
+            /* First entry */
+            switch_buf = switch_opt;
         }
-        /* */
-        conf->private = switch_buf;
+        switch_opt = NULL;
+    }
+    /* */
+    conf->private = switch_buf;
 
-        GF_FREE (option_string);
-        return 0;
+    GF_FREE(option_string);
+    return 0;
 err:
-        GF_FREE (switch_buf_array);
-        GF_FREE (switch_opt);
-        GF_FREE (option_string);
+    GF_FREE(switch_buf_array);
+    GF_FREE(switch_opt);
+    GF_FREE(option_string);
 
-        if (switch_buf) {
-                trav = switch_buf;
-                while (trav) {
-                        GF_FREE (trav->array);
-                        switch_opt = trav;
-                        trav = trav->next;
-                        GF_FREE (switch_opt);
-                }
+    if (switch_buf) {
+        trav = switch_buf;
+        while (trav) {
+            GF_FREE(trav->array);
+            switch_opt = trav;
+            trav = trav->next;
+            GF_FREE(switch_opt);
         }
-        return -1;
+    }
+    return -1;
 }
 
-
 int32_t
-switch_init (xlator_t *this)
+switch_init(xlator_t *this)
 {
-        dht_conf_t            *conf = NULL;
-        data_t                *data = NULL;
-        int                    ret = -1;
+    dht_conf_t *conf = NULL;
+    data_t *data = NULL;
+    int ret = -1;
+
+    ret = dht_init(this);
+    if (ret) {
+        return ret;
+    }
+    conf = this->private;
 
-        ret = dht_init(this);
+    data = dict_get(this->options, "pattern.switch.case");
+    if (data) {
+        /* TODO: */
+        ret = set_switch_pattern(this, conf, data->data);
         if (ret) {
-                return ret;
-        }
-        conf = this->private;
-
-        data = dict_get (this->options, "pattern.switch.case");
-        if (data) {
-                /* TODO: */
-                ret = set_switch_pattern (this, conf, data->data);
-                if (ret) {
-                        goto err;
-                }
+            goto err;
         }
+    }
 
-        this->private = conf;
-        return 0;
+    this->private = conf;
+    return 0;
 
 err:
-        dht_fini(this);
-        return -1;
+    dht_fini(this);
+    return -1;
 }
 
-
-class_methods_t class_methods = {
-        .init           = switch_init,
-        .fini           = switch_fini,
-        .reconfigure    = dht_reconfigure,
-        .notify         = dht_notify
-};
-
+class_methods_t class_methods = {.init = switch_init,
+                                 .fini = switch_fini,
+                                 .reconfigure = dht_reconfigure,
+                                 .notify = dht_notify};
 
 struct xlator_fops fops = {
-        .lookup      = switch_lookup,
-        .create      = switch_create,
-        .mknod       = switch_mknod,
-
-        .stat        = dht_stat,
-        .fstat       = dht_fstat,
-        .truncate    = dht_truncate,
-        .ftruncate   = dht_ftruncate,
-        .access      = dht_access,
-        .readlink    = dht_readlink,
-        .setxattr    = dht_setxattr,
-        .getxattr    = dht_getxattr,
-        .removexattr = dht_removexattr,
-        .open        = dht_open,
-        .readv       = dht_readv,
-        .writev      = dht_writev,
-        .flush       = dht_flush,
-        .fsync       = dht_fsync,
-        .statfs      = dht_statfs,
-        .lk          = dht_lk,
-        .opendir     = dht_opendir,
-        .readdir     = dht_readdir,
-        .readdirp    = dht_readdirp,
-        .fsyncdir    = dht_fsyncdir,
-        .symlink     = dht_symlink,
-        .unlink      = dht_unlink,
-        .link        = dht_link,
-        .mkdir       = dht_mkdir,
-        .rmdir       = dht_rmdir,
-        .rename      = dht_rename,
-        .inodelk     = dht_inodelk,
-        .finodelk    = dht_finodelk,
-        .entrylk     = dht_entrylk,
-        .fentrylk    = dht_fentrylk,
-        .xattrop     = dht_xattrop,
-        .fxattrop    = dht_fxattrop,
-        .setattr     = dht_setattr,
+    .lookup = switch_lookup,
+    .create = switch_create,
+    .mknod = switch_mknod,
+
+    .stat = dht_stat,
+    .fstat = dht_fstat,
+    .truncate = dht_truncate,
+    .ftruncate = dht_ftruncate,
+    .access = dht_access,
+    .readlink = dht_readlink,
+    .setxattr = dht_setxattr,
+    .getxattr = dht_getxattr,
+    .removexattr = dht_removexattr,
+    .open = dht_open,
+    .readv = dht_readv,
+    .writev = dht_writev,
+    .flush = dht_flush,
+    .fsync = dht_fsync,
+    .statfs = dht_statfs,
+    .lk = dht_lk,
+    .opendir = dht_opendir,
+    .readdir = dht_readdir,
+    .readdirp = dht_readdirp,
+    .fsyncdir = dht_fsyncdir,
+    .symlink = dht_symlink,
+    .unlink = dht_unlink,
+    .link = dht_link,
+    .mkdir = dht_mkdir,
+    .rmdir = dht_rmdir,
+    .rename = dht_rename,
+    .inodelk = dht_inodelk,
+    .finodelk = dht_finodelk,
+    .entrylk = dht_entrylk,
+    .fentrylk = dht_fentrylk,
+    .xattrop = dht_xattrop,
+    .fxattrop = dht_fxattrop,
+    .setattr = dht_setattr,
 };
 
-
-struct xlator_cbks cbks = {
-        .forget     = dht_forget
-};
+struct xlator_cbks cbks = {.forget = dht_forget};
diff --git a/xlators/cluster/dht/src/tier-common.c b/xlators/cluster/dht/src/tier-common.c
index f08ff4768f0..b86ed673042 100644
--- a/xlators/cluster/dht/src/tier-common.c
+++ b/xlators/cluster/dht/src/tier-common.c
@@ -17,1233 +17,1183 @@
 #include "tier.h"
 
 int
-dht_link_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-              int op_ret, int op_errno,
-              inode_t *inode, struct iatt *stbuf, struct iatt *preparent,
-              struct iatt *postparent, dict_t *xdata);
-
+dht_link_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+             int op_errno, inode_t *inode, struct iatt *stbuf,
+             struct iatt *preparent, struct iatt *postparent, dict_t *xdata);
 
 int
-tier_link_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-              int op_ret, int op_errno,
-              inode_t *inode, struct iatt *stbuf, struct iatt *preparent,
-              struct iatt *postparent, dict_t *xdata)
+tier_link_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+              int op_errno, inode_t *inode, struct iatt *stbuf,
+              struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        loc_t        *oldloc = NULL;
-        loc_t        *newloc = NULL;
+    dht_local_t *local = NULL;
+    loc_t *oldloc = NULL;
+    loc_t *newloc = NULL;
 
-        local = frame->local;
+    local = frame->local;
 
-        oldloc = &local->loc;
-        newloc = &local->loc2;
+    oldloc = &local->loc;
+    newloc = &local->loc2;
 
-        if (op_ret == -1) {
-                /* No continuation on DHT inode missing errors, as we should
-                 * then have a good stbuf that states P2 happened. We would
-                 * get inode missing if, the file completed migrated between
-                 * the lookup and the link call */
-                goto out;
-        }
+    if (op_ret == -1) {
+        /* No continuation on DHT inode missing errors, as we should
+         * then have a good stbuf that states P2 happened. We would
+         * get inode missing if, the file completed migrated between
+         * the lookup and the link call */
+        goto out;
+    }
 
-        if (local->call_cnt != 1) {
-                goto out;
-        }
+    if (local->call_cnt != 1) {
+        goto out;
+    }
 
-        local->call_cnt = 2;
+    local->call_cnt = 2;
 
-        /* Do this on the hot tier now */
+    /* Do this on the hot tier now */
 
-        STACK_WIND (frame, tier_link_cbk, local->cached_subvol,
-                    local->cached_subvol->fops->link,
-                    oldloc, newloc, xdata);
+    STACK_WIND(frame, tier_link_cbk, local->cached_subvol,
+               local->cached_subvol->fops->link, oldloc, newloc, xdata);
 
-        return 0;
+    return 0;
 
 out:
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
 
-        DHT_STACK_UNWIND (link, frame, op_ret, op_errno, inode, stbuf,
-                          preparent, postparent, NULL);
+    DHT_STACK_UNWIND(link, frame, op_ret, op_errno, inode, stbuf, preparent,
+                     postparent, NULL);
 
-        return 0;
+    return 0;
 }
 
-
 int
-tier_link (call_frame_t *frame, xlator_t *this,
-          loc_t *oldloc, loc_t *newloc, dict_t *xdata)
+tier_link(call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc,
+          dict_t *xdata)
 {
-        xlator_t    *cached_subvol = NULL;
-        xlator_t    *hashed_subvol = NULL;
-        int          op_errno = -1;
-        int          ret = -1;
-        dht_local_t *local = NULL;
-        dht_conf_t   *conf           = NULL;
-
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (oldloc, err);
-        VALIDATE_OR_GOTO (newloc, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, oldloc, NULL, GF_FOP_LINK);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-        local->call_cnt = 1;
-
-        cached_subvol = local->cached_subvol;
-
-        if (!cached_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", oldloc->path);
-                op_errno = ENOENT;
-                goto err;
-        }
-
-        hashed_subvol = TIER_HASHED_SUBVOL;
-
-        ret = loc_copy (&local->loc2, newloc);
-        if (ret == -1) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        if (hashed_subvol == cached_subvol) {
-                STACK_WIND (frame, dht_link_cbk,
-                            cached_subvol, cached_subvol->fops->link,
-                            oldloc, newloc, xdata);
-                return 0;
-        }
-
+    xlator_t *cached_subvol = NULL;
+    xlator_t *hashed_subvol = NULL;
+    int op_errno = -1;
+    int ret = -1;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(oldloc, err);
+    VALIDATE_OR_GOTO(newloc, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, oldloc, NULL, GF_FOP_LINK);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+    local->call_cnt = 1;
+
+    cached_subvol = local->cached_subvol;
+
+    if (!cached_subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     oldloc->path);
+        op_errno = ENOENT;
+        goto err;
+    }
+
+    hashed_subvol = TIER_HASHED_SUBVOL;
+
+    ret = loc_copy(&local->loc2, newloc);
+    if (ret == -1) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    if (hashed_subvol == cached_subvol) {
+        STACK_WIND(frame, dht_link_cbk, cached_subvol,
+                   cached_subvol->fops->link, oldloc, newloc, xdata);
+        return 0;
+    }
 
-        /* Create hardlinks to both the data file on the hot tier
-           and the linkto file on the cold tier */
+    /* Create hardlinks to both the data file on the hot tier
+       and the linkto file on the cold tier */
 
-        gf_uuid_copy (local->gfid, oldloc->inode->gfid);
+    gf_uuid_copy(local->gfid, oldloc->inode->gfid);
 
-        STACK_WIND (frame, tier_link_cbk,
-                    hashed_subvol, hashed_subvol->fops->link,
-                    oldloc, newloc, xdata);
+    STACK_WIND(frame, tier_link_cbk, hashed_subvol, hashed_subvol->fops->link,
+               oldloc, newloc, xdata);
 
-        return 0;
+    return 0;
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (link, frame, -1, op_errno, NULL, NULL, NULL, NULL,
-                          NULL);
-        return 0;
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(link, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL);
+    return 0;
 }
 
-
-
 int
-tier_create_unlink_stale_linkto_cbk (call_frame_t *frame, void *cookie,
-                                     xlator_t *this, int op_ret, int op_errno,
-                                     struct iatt *preparent,
-                                     struct iatt *postparent, dict_t *xdata)
+tier_create_unlink_stale_linkto_cbk(call_frame_t *frame, void *cookie,
+                                    xlator_t *this, int op_ret, int op_errno,
+                                    struct iatt *preparent,
+                                    struct iatt *postparent, dict_t *xdata)
 {
+    dht_local_t *local = NULL;
 
-        dht_local_t     *local = NULL;
+    local = frame->local;
 
-        local = frame->local;
+    if (local->params) {
+        dict_del(local->params, GLUSTERFS_INTERNAL_FOP_KEY);
+    }
 
-        if (local->params) {
-                dict_del (local->params, GLUSTERFS_INTERNAL_FOP_KEY);
-        }
-
-        DHT_STACK_UNWIND (create, frame, -1, local->op_errno,
-                          NULL, NULL, NULL, NULL, NULL, NULL);
+    DHT_STACK_UNWIND(create, frame, -1, local->op_errno, NULL, NULL, NULL, NULL,
+                     NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                 int op_ret, int op_errno,
-                 fd_t *fd, inode_t *inode, struct iatt *stbuf,
-                 struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
+tier_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, fd_t *fd, inode_t *inode, struct iatt *stbuf,
+                struct iatt *preparent, struct iatt *postparent, dict_t *xdata)
 {
-        xlator_t     *prev           = NULL;
-        int           ret            = -1;
-        dht_local_t  *local          = NULL;
-        xlator_t     *hashed_subvol  = NULL;
-        dht_conf_t   *conf           = NULL;
-
-        local = frame->local;
-        conf  = this->private;
-
-        hashed_subvol = TIER_HASHED_SUBVOL;
-
-        if (!local) {
-                op_ret = -1;
-                op_errno = EINVAL;
+    xlator_t *prev = NULL;
+    int ret = -1;
+    dht_local_t *local = NULL;
+    xlator_t *hashed_subvol = NULL;
+    dht_conf_t *conf = NULL;
+
+    local = frame->local;
+    conf = this->private;
+
+    hashed_subvol = TIER_HASHED_SUBVOL;
+
+    if (!local) {
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
+
+    if (op_ret == -1) {
+        if (local->linked == _gf_true && local->xattr_req) {
+            local->op_errno = op_errno;
+            local->op_ret = op_ret;
+            ret = dht_fill_dict_to_avoid_unlink_of_migrating_file(
+                local->xattr_req);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                       "Failed to set dictionary value to "
+                       "unlink of migrating file");
                 goto out;
-        }
+            }
 
-        if (op_ret == -1) {
-                if (local->linked == _gf_true && local->xattr_req) {
-                        local->op_errno = op_errno;
-                        local->op_ret = op_ret;
-                        ret = dht_fill_dict_to_avoid_unlink_of_migrating_file
-                              (local->xattr_req);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_WARNING, 0,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "Failed to set dictionary value to "
-                                        "unlink of migrating file");
-                                goto out;
-                        }
-
-                        STACK_WIND (frame,
-                                    tier_create_unlink_stale_linkto_cbk,
-                                    hashed_subvol,
-                                    hashed_subvol->fops->unlink,
-                                    &local->loc, 0, local->xattr_req);
-                        return 0;
-                }
-                goto out;
+            STACK_WIND(frame, tier_create_unlink_stale_linkto_cbk,
+                       hashed_subvol, hashed_subvol->fops->unlink, &local->loc,
+                       0, local->xattr_req);
+            return 0;
         }
+        goto out;
+    }
 
-        prev = cookie;
+    prev = cookie;
 
-        if (local->loc.parent) {
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           preparent, 0);
+    if (local->loc.parent) {
+        dht_inode_ctx_time_update(local->loc.parent, this, preparent, 0);
 
-                dht_inode_ctx_time_update (local->loc.parent, this,
-                                           postparent, 1);
-        }
+        dht_inode_ctx_time_update(local->loc.parent, this, postparent, 1);
+    }
 
-        ret = dht_layout_preset (this, prev, inode);
-        if (ret != 0) {
-                gf_msg_debug (this->name, 0,
-                              "could not set preset layout for subvol %s",
-                              prev->name);
-                op_ret   = -1;
-                op_errno = EINVAL;
-                goto out;
-        }
+    ret = dht_layout_preset(this, prev, inode);
+    if (ret != 0) {
+        gf_msg_debug(this->name, 0, "could not set preset layout for subvol %s",
+                     prev->name);
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
 
-        local->op_errno = op_errno;
+    local->op_errno = op_errno;
 
-        if (local->linked == _gf_true) {
-                local->stbuf = *stbuf;
-                dht_linkfile_attr_heal (frame, this);
-        }
+    if (local->linked == _gf_true) {
+        local->stbuf = *stbuf;
+        dht_linkfile_attr_heal(frame, this);
+    }
 out:
-        if (local) {
-                if (local->xattr_req) {
-                        dict_del (local->xattr_req, TIER_LINKFILE_GFID);
-                }
+    if (local) {
+        if (local->xattr_req) {
+            dict_del(local->xattr_req, TIER_LINKFILE_GFID);
         }
+    }
 
-        DHT_STRIP_PHASE1_FLAGS (stbuf);
+    DHT_STRIP_PHASE1_FLAGS(stbuf);
 
-        DHT_STACK_UNWIND (create, frame, op_ret, op_errno, fd, inode,
-                          stbuf, preparent, postparent, xdata);
+    DHT_STACK_UNWIND(create, frame, op_ret, op_errno, fd, inode, stbuf,
+                     preparent, postparent, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_create_linkfile_create_cbk (call_frame_t *frame, void *cookie,
-                                xlator_t *this,
-                                int32_t op_ret, int32_t op_errno,
-                                inode_t *inode, struct iatt *stbuf,
-                                struct iatt *preparent, struct iatt *postparent,
-                                dict_t *xdata)
+tier_create_linkfile_create_cbk(call_frame_t *frame, void *cookie,
+                                xlator_t *this, int32_t op_ret,
+                                int32_t op_errno, inode_t *inode,
+                                struct iatt *stbuf, struct iatt *preparent,
+                                struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t     *local             = NULL;
-        xlator_t        *cached_subvol     = NULL;
-        dht_conf_t      *conf              = NULL;
-        int              ret               = -1;
-        unsigned char   *gfid              = NULL;
-
-        local = frame->local;
-        if (!local) {
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        if (op_ret == -1) {
-                local->op_errno = op_errno;
-                goto err;
-        }
-
-        conf = this->private;
-        if (!conf) {
-                local->op_errno = EINVAL;
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        cached_subvol = TIER_UNHASHED_SUBVOL;
-
-        if (local->params) {
-                dict_del (local->params, conf->link_xattr_name);
-                dict_del (local->params, GLUSTERFS_INTERNAL_FOP_KEY);
-        }
-
-        /*
-         * We will delete the linkfile if data file creation fails.
-         * When deleting this stale linkfile, there is a possibility
-         * for a race between this linkfile deletion and a stale
-         * linkfile deletion triggered by another lookup from different
-         * client.
-         *
-         * For eg:
-         *
-         *     Client 1                        Client 2
-         *
-         * 1   linkfile created for foo
-         *
-         * 2   data file creation failed
-         *
-         * 3                                   creating a file with same name
-         *
-         * 4                                   lookup before creation deleted
-         *                                     the linkfile created by client1
-         *                                     considering as a stale linkfile.
-         *
-         * 5                                   New linkfile created for foo
-         *                                     with different gfid.
-         *
-         * 6 Trigger linkfile deletion as
-         *   data file creation failed.
-         *
-         * 7 Linkfile deleted which is
-         *   created by client2.
-         *
-         * 8                                   Data file created.
-         *
-         * With this race, we will end up having a file in a non-hashed subvol
-         * without a linkfile in hashed subvol.
-         *
-         * To avoid this, we store the gfid of linkfile created by client, So
-         * If we delete the linkfile , we validate gfid of existing file with
-         * stored value from posix layer.
-         *
-         * Storing this value in local->xattr_req as local->params was also used
-         * to create the data file. During the linkfile deletion we will use
-         * local->xattr_req dictionary.
-         */
+    dht_local_t *local = NULL;
+    xlator_t *cached_subvol = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    unsigned char *gfid = NULL;
+
+    local = frame->local;
+    if (!local) {
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    if (op_ret == -1) {
+        local->op_errno = op_errno;
+        goto err;
+    }
+
+    conf = this->private;
+    if (!conf) {
+        local->op_errno = EINVAL;
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    cached_subvol = TIER_UNHASHED_SUBVOL;
+
+    if (local->params) {
+        dict_del(local->params, conf->link_xattr_name);
+        dict_del(local->params, GLUSTERFS_INTERNAL_FOP_KEY);
+    }
+
+    /*
+     * We will delete the linkfile if data file creation fails.
+     * When deleting this stale linkfile, there is a possibility
+     * for a race between this linkfile deletion and a stale
+     * linkfile deletion triggered by another lookup from different
+     * client.
+     *
+     * For eg:
+     *
+     *     Client 1                        Client 2
+     *
+     * 1   linkfile created for foo
+     *
+     * 2   data file creation failed
+     *
+     * 3                                   creating a file with same name
+     *
+     * 4                                   lookup before creation deleted
+     *                                     the linkfile created by client1
+     *                                     considering as a stale linkfile.
+     *
+     * 5                                   New linkfile created for foo
+     *                                     with different gfid.
+     *
+     * 6 Trigger linkfile deletion as
+     *   data file creation failed.
+     *
+     * 7 Linkfile deleted which is
+     *   created by client2.
+     *
+     * 8                                   Data file created.
+     *
+     * With this race, we will end up having a file in a non-hashed subvol
+     * without a linkfile in hashed subvol.
+     *
+     * To avoid this, we store the gfid of linkfile created by client, So
+     * If we delete the linkfile , we validate gfid of existing file with
+     * stored value from posix layer.
+     *
+     * Storing this value in local->xattr_req as local->params was also used
+     * to create the data file. During the linkfile deletion we will use
+     * local->xattr_req dictionary.
+     */
+    if (!local->xattr_req) {
+        local->xattr_req = dict_new();
         if (!local->xattr_req) {
-                local->xattr_req = dict_new ();
-                if (!local->xattr_req) {
-                        local->op_errno = ENOMEM;
-                        op_errno = ENOMEM;
-                        goto err;
-                }
+            local->op_errno = ENOMEM;
+            op_errno = ENOMEM;
+            goto err;
         }
-
-        gfid = GF_MALLOC (sizeof (uuid_t), gf_common_mt_char);
-        if (!gfid) {
-                local->op_errno = ENOMEM;
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-        gf_uuid_copy (gfid, stbuf->ia_gfid);
-        ret = dict_set_dynptr (local->xattr_req, TIER_LINKFILE_GFID,
-                                   gfid, sizeof (uuid_t));
-        if (ret) {
-                GF_FREE (gfid);
-                gf_msg (this->name, GF_LOG_WARNING, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set dictionary value"
-                        " : key = %s", TIER_LINKFILE_GFID);
-        }
-
-        STACK_WIND_COOKIE (frame, tier_create_cbk, cached_subvol,
-                           cached_subvol, cached_subvol->fops->create,
-                           &local->loc, local->flags, local->mode,
-                           local->umask, local->fd, local->params);
-
-        return 0;
+    }
+
+    gfid = GF_MALLOC(sizeof(uuid_t), gf_common_mt_char);
+    if (!gfid) {
+        local->op_errno = ENOMEM;
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    gf_uuid_copy(gfid, stbuf->ia_gfid);
+    ret = dict_set_dynptr(local->xattr_req, TIER_LINKFILE_GFID, gfid,
+                          sizeof(uuid_t));
+    if (ret) {
+        GF_FREE(gfid);
+        gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set dictionary value"
+               " : key = %s",
+               TIER_LINKFILE_GFID);
+    }
+
+    STACK_WIND_COOKIE(frame, tier_create_cbk, cached_subvol, cached_subvol,
+                      cached_subvol->fops->create, &local->loc, local->flags,
+                      local->mode, local->umask, local->fd, local->params);
+
+    return 0;
 err:
-        DHT_STACK_UNWIND (create, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
+    return 0;
 }
 
 gf_boolean_t
-tier_is_hot_tier_decommissioned (xlator_t *this)
+tier_is_hot_tier_decommissioned(xlator_t *this)
 {
-        dht_conf_t              *conf        = NULL;
-        xlator_t                *hot_tier    = NULL;
-        int                      i           = 0;
-
-        conf = this->private;
-        hot_tier = conf->subvolumes[1];
-
-        if (conf->decommission_subvols_cnt) {
-                for (i = 0; i < conf->subvolume_cnt; i++) {
-                        if (conf->decommissioned_bricks[i] &&
-                                conf->decommissioned_bricks[i] == hot_tier)
-                                return _gf_true;
-                }
+    dht_conf_t *conf = NULL;
+    xlator_t *hot_tier = NULL;
+    int i = 0;
+
+    conf = this->private;
+    hot_tier = conf->subvolumes[1];
+
+    if (conf->decommission_subvols_cnt) {
+        for (i = 0; i < conf->subvolume_cnt; i++) {
+            if (conf->decommissioned_bricks[i] &&
+                conf->decommissioned_bricks[i] == hot_tier)
+                return _gf_true;
         }
+    }
 
-        return _gf_false;
+    return _gf_false;
 }
 
 int
-tier_create (call_frame_t *frame, xlator_t *this,
-            loc_t *loc, int32_t flags, mode_t mode,
-            mode_t umask, fd_t *fd, dict_t *params)
+tier_create(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+            mode_t mode, mode_t umask, fd_t *fd, dict_t *params)
 {
-        int                     op_errno            = -1;
-        dht_local_t             *local              = NULL;
-        dht_conf_t              *conf               = NULL;
-        xlator_t                *hot_subvol         = NULL;
-        xlator_t                *cold_subvol        = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-
-        conf = this->private;
-
-        dht_get_du_info (frame, this, loc);
-
-        local = dht_local_init (frame, loc, fd, GF_FOP_CREATE);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
-        }
-
-
-        cold_subvol = TIER_HASHED_SUBVOL;
-        hot_subvol = TIER_UNHASHED_SUBVOL;
-
-        if (conf->subvolumes[0] != cold_subvol) {
-                hot_subvol = conf->subvolumes[0];
-        }
-        /*
-         * if hot tier full, write to cold.
-         * Also if hot tier is full, create in cold
-         */
-        if (dht_is_subvol_filled (this, hot_subvol) ||
-            tier_is_hot_tier_decommissioned (this)) {
-                gf_msg_debug (this->name, 0,
-                              "creating %s on %s", loc->path,
-                              cold_subvol->name);
-
-                STACK_WIND_COOKIE (frame, tier_create_cbk, cold_subvol,
-                                   cold_subvol, cold_subvol->fops->create,
-                                   loc, flags, mode, umask, fd, params);
-        } else {
-                local->params = dict_ref (params);
-                local->flags = flags;
-                local->mode = mode;
-                local->umask = umask;
-                local->cached_subvol = hot_subvol;
-                local->hashed_subvol = cold_subvol;
-
-                gf_msg_debug (this->name, 0,
-                              "creating %s on %s (link at %s)", loc->path,
-                              hot_subvol->name, cold_subvol->name);
-
-                dht_linkfile_create (frame, tier_create_linkfile_create_cbk,
-                                     this, hot_subvol, cold_subvol, loc);
-
-                goto out;
-        }
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *hot_subvol = NULL;
+    xlator_t *cold_subvol = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+
+    conf = this->private;
+
+    dht_get_du_info(frame, this, loc);
+
+    local = dht_local_init(frame, loc, fd, GF_FOP_CREATE);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    cold_subvol = TIER_HASHED_SUBVOL;
+    hot_subvol = TIER_UNHASHED_SUBVOL;
+
+    if (conf->subvolumes[0] != cold_subvol) {
+        hot_subvol = conf->subvolumes[0];
+    }
+    /*
+     * if hot tier full, write to cold.
+     * Also if hot tier is full, create in cold
+     */
+    if (dht_is_subvol_filled(this, hot_subvol) ||
+        tier_is_hot_tier_decommissioned(this)) {
+        gf_msg_debug(this->name, 0, "creating %s on %s", loc->path,
+                     cold_subvol->name);
+
+        STACK_WIND_COOKIE(frame, tier_create_cbk, cold_subvol, cold_subvol,
+                          cold_subvol->fops->create, loc, flags, mode, umask,
+                          fd, params);
+    } else {
+        local->params = dict_ref(params);
+        local->flags = flags;
+        local->mode = mode;
+        local->umask = umask;
+        local->cached_subvol = hot_subvol;
+        local->hashed_subvol = cold_subvol;
+
+        gf_msg_debug(this->name, 0, "creating %s on %s (link at %s)", loc->path,
+                     hot_subvol->name, cold_subvol->name);
+
+        dht_linkfile_create(frame, tier_create_linkfile_create_cbk, this,
+                            hot_subvol, cold_subvol, loc);
+
+        goto out;
+    }
 out:
-        return 0;
+    return 0;
 
 err:
 
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (create, frame, -1, op_errno, NULL, NULL, NULL,
-                          NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(create, frame, -1, op_errno, NULL, NULL, NULL, NULL, NULL,
+                     NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_unlink_nonhashed_linkfile_cbk (call_frame_t *frame, void *cookie,
-                                    xlator_t *this, int op_ret, int op_errno,
-                                    struct iatt *preparent,
-                                    struct iatt *postparent, dict_t *xdata)
+tier_unlink_nonhashed_linkfile_cbk(call_frame_t *frame, void *cookie,
+                                   xlator_t *this, int op_ret, int op_errno,
+                                   struct iatt *preparent,
+                                   struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-
-        local = frame->local;
-        prev  = cookie;
-
-        LOCK (&frame->lock);
-        {
-                if ((op_ret == -1) && (op_errno != ENOENT)) {
-                        local->op_errno = op_errno;
-                        local->op_ret = op_ret;
-                        gf_msg_debug (this->name, op_errno,
-                                      "Unlink link: subvolume %s"
-                                      " returned -1",
-                                      prev->name);
-                        goto unlock;
-                }
-
-                local->op_ret = 0;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+
+    local = frame->local;
+    prev = cookie;
+
+    LOCK(&frame->lock);
+    {
+        if ((op_ret == -1) && (op_errno != ENOENT)) {
+            local->op_errno = op_errno;
+            local->op_ret = op_ret;
+            gf_msg_debug(this->name, op_errno,
+                         "Unlink link: subvolume %s"
+                         " returned -1",
+                         prev->name);
+            goto unlock;
         }
+
+        local->op_ret = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        if (local->op_ret == -1)
-                goto err;
-        DHT_STACK_UNWIND (unlink, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, NULL);
+    if (local->op_ret == -1)
+        goto err;
+    DHT_STACK_UNWIND(unlink, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, NULL);
 
-
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (unlink, frame, -1, local->op_errno,
-                          NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(unlink, frame, -1, local->op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
 int
-tier_unlink_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int op_ret, int op_errno, inode_t *inode,
-                        struct iatt *preparent, dict_t *xdata,
-                        struct iatt *postparent)
+tier_unlink_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                       int op_ret, int op_errno, inode_t *inode,
+                       struct iatt *preparent, dict_t *xdata,
+                       struct iatt *postparent)
 {
-        dht_local_t             *local             = NULL;
-        xlator_t                *prev              = NULL;
-        dht_conf_t              *conf              = NULL;
-        xlator_t                *hot_subvol        = NULL;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    dht_conf_t *conf = NULL;
+    xlator_t *hot_subvol = NULL;
 
-        local = frame->local;
-        prev  = cookie;
-        conf = this->private;
-        hot_subvol = TIER_UNHASHED_SUBVOL;
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+    hot_subvol = TIER_UNHASHED_SUBVOL;
 
-        if (!op_ret) {
-                /*
-                 * linkfile present on hot tier. unlinking the linkfile
-                 */
-                STACK_WIND_COOKIE (frame, tier_unlink_nonhashed_linkfile_cbk,
-                                   hot_subvol, hot_subvol, hot_subvol->fops->unlink,
-                                   &local->loc, local->flags, NULL);
-                return 0;
-        }
+    if (!op_ret) {
+        /*
+         * linkfile present on hot tier. unlinking the linkfile
+         */
+        STACK_WIND_COOKIE(frame, tier_unlink_nonhashed_linkfile_cbk, hot_subvol,
+                          hot_subvol, hot_subvol->fops->unlink, &local->loc,
+                          local->flags, NULL);
+        return 0;
+    }
 
-        LOCK (&frame->lock);
-        {
-                if (op_errno == ENOENT) {
-                        local->op_ret   = 0;
-                        local->op_errno = op_errno;
-                } else {
-                        local->op_ret = op_ret;
-                        local->op_errno = op_errno;
-                }
-                gf_msg_debug (this->name, op_errno,
-                              "Lookup : subvolume %s returned -1",
-                               prev->name);
+    LOCK(&frame->lock);
+    {
+        if (op_errno == ENOENT) {
+            local->op_ret = 0;
+            local->op_errno = op_errno;
+        } else {
+            local->op_ret = op_ret;
+            local->op_errno = op_errno;
         }
+        gf_msg_debug(this->name, op_errno, "Lookup : subvolume %s returned -1",
+                     prev->name);
+    }
 
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        DHT_STACK_UNWIND (unlink, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, xdata);
+    DHT_STACK_UNWIND(unlink, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_unlink_linkfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+tier_unlink_linkfile_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
                          int op_ret, int op_errno, struct iatt *preparent,
                          struct iatt *postparent, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        xlator_t     *prev = NULL;
-
-        local = frame->local;
-        prev  = cookie;
-
-        LOCK (&frame->lock);
-        {
-                /* Ignore EINVAL for tier to ignore error when the file
-                        does not exist on the other tier  */
-                if ((op_ret == -1) && !((op_errno == ENOENT) ||
-                                        (op_errno == EINVAL))) {
-                        local->op_errno = op_errno;
-                        local->op_ret   = op_ret;
-                        gf_msg_debug (this->name, op_errno,
-                                      "Unlink link: subvolume %s"
-                                      " returned -1",
-                                      prev->name);
-                        goto unlock;
-                }
-
-                local->op_ret = 0;
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+
+    local = frame->local;
+    prev = cookie;
+
+    LOCK(&frame->lock);
+    {
+        /* Ignore EINVAL for tier to ignore error when the file
+                does not exist on the other tier  */
+        if ((op_ret == -1) && !((op_errno == ENOENT) || (op_errno == EINVAL))) {
+            local->op_errno = op_errno;
+            local->op_ret = op_ret;
+            gf_msg_debug(this->name, op_errno,
+                         "Unlink link: subvolume %s"
+                         " returned -1",
+                         prev->name);
+            goto unlock;
         }
+
+        local->op_ret = 0;
+    }
 unlock:
-        UNLOCK (&frame->lock);
+    UNLOCK(&frame->lock);
 
-        if (local->op_ret == -1)
-                goto err;
+    if (local->op_ret == -1)
+        goto err;
 
-        DHT_STACK_UNWIND (unlink, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, xdata);
+    DHT_STACK_UNWIND(unlink, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, xdata);
 
-        return 0;
+    return 0;
 
 err:
-        DHT_STACK_UNWIND (unlink, frame, -1, local->op_errno,
-                          NULL, NULL, NULL);
-        return 0;
+    DHT_STACK_UNWIND(unlink, frame, -1, local->op_errno, NULL, NULL, NULL);
+    return 0;
 }
 
 int32_t
-tier_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, struct iatt *preparent,
-                struct iatt *postparent, dict_t *xdata)
+tier_unlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, struct iatt *preparent, struct iatt *postparent,
+                dict_t *xdata)
 {
-        dht_local_t     *local          = NULL;
-        xlator_t        *prev           = NULL;
-        struct iatt     *stbuf          = NULL;
-        dht_conf_t      *conf           = NULL;
-        int              ret            = -1;
-        xlator_t        *hot_tier       = NULL;
-        xlator_t        *cold_tier      = NULL;
-
-        local = frame->local;
-        prev  = cookie;
-        conf  = this->private;
-
-        cold_tier = TIER_HASHED_SUBVOL;
-        hot_tier = TIER_UNHASHED_SUBVOL;
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        if (op_errno == ENOENT) {
-                                local->op_ret = 0;
-                        } else {
-                                local->op_ret   = -1;
-                                local->op_errno = op_errno;
-                        }
-                        gf_msg_debug (this->name, op_errno,
-                                      "Unlink: subvolume %s returned -1"
-                                      " with errno = %d",
-                                       prev->name, op_errno);
-                        goto unlock;
-                }
-
+    dht_local_t *local = NULL;
+    xlator_t *prev = NULL;
+    struct iatt *stbuf = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
+    xlator_t *hot_tier = NULL;
+    xlator_t *cold_tier = NULL;
+
+    local = frame->local;
+    prev = cookie;
+    conf = this->private;
+
+    cold_tier = TIER_HASHED_SUBVOL;
+    hot_tier = TIER_UNHASHED_SUBVOL;
+
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            if (op_errno == ENOENT) {
                 local->op_ret = 0;
+            } else {
+                local->op_ret = -1;
+                local->op_errno = op_errno;
+            }
+            gf_msg_debug(this->name, op_errno,
+                         "Unlink: subvolume %s returned -1"
+                         " with errno = %d",
+                         prev->name, op_errno);
+            goto unlock;
+        }
 
-                local->postparent = *postparent;
-                local->preparent = *preparent;
+        local->op_ret = 0;
 
-                if (local->loc.parent) {
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->preparent, 0);
-                        dht_inode_ctx_time_update (local->loc.parent, this,
-                                                   &local->postparent, 1);
-                }
+        local->postparent = *postparent;
+        local->preparent = *preparent;
+
+        if (local->loc.parent) {
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->preparent, 0);
+            dht_inode_ctx_time_update(local->loc.parent, this,
+                                      &local->postparent, 1);
         }
+    }
 unlock:
-        UNLOCK (&frame->lock);
-
-        if (local->op_ret)
-                goto out;
+    UNLOCK(&frame->lock);
 
-        if (cold_tier != local->cached_subvol) {
-                /*
-                 * File is present in hot tier, so there will be
-                 * a link file on cold tier, deleting the linkfile
-                 * from cold tier
-                 */
-                STACK_WIND_COOKIE (frame, tier_unlink_linkfile_cbk, cold_tier,
-                                   cold_tier, cold_tier->fops->unlink,
-                                   &local->loc,
-                                   local->flags, xdata);
-                return 0;
-        }
+    if (local->op_ret)
+        goto out;
 
-        ret = dict_get_bin (xdata, DHT_IATT_IN_XDATA_KEY, (void **) &stbuf);
-        if (!ret && stbuf && ((IS_DHT_MIGRATION_PHASE2 (stbuf)) ||
-                      IS_DHT_MIGRATION_PHASE1 (stbuf))) {
-                /*
-                 * File is migrating from cold to hot tier.
-                 * Delete the destination linkfile.
-                 */
-                STACK_WIND_COOKIE (frame, tier_unlink_lookup_cbk, hot_tier,
-                                   hot_tier, hot_tier->fops->lookup,
-                                   &local->loc, NULL);
-                return 0;
+    if (cold_tier != local->cached_subvol) {
+        /*
+         * File is present in hot tier, so there will be
+         * a link file on cold tier, deleting the linkfile
+         * from cold tier
+         */
+        STACK_WIND_COOKIE(frame, tier_unlink_linkfile_cbk, cold_tier, cold_tier,
+                          cold_tier->fops->unlink, &local->loc, local->flags,
+                          xdata);
+        return 0;
+    }
 
-        }
+    ret = dict_get_bin(xdata, DHT_IATT_IN_XDATA_KEY, (void **)&stbuf);
+    if (!ret && stbuf &&
+        ((IS_DHT_MIGRATION_PHASE2(stbuf)) || IS_DHT_MIGRATION_PHASE1(stbuf))) {
+        /*
+         * File is migrating from cold to hot tier.
+         * Delete the destination linkfile.
+         */
+        STACK_WIND_COOKIE(frame, tier_unlink_lookup_cbk, hot_tier, hot_tier,
+                          hot_tier->fops->lookup, &local->loc, NULL);
+        return 0;
+    }
 
 out:
-        DHT_STACK_UNWIND (unlink, frame, local->op_ret, local->op_errno,
-                          &local->preparent, &local->postparent, xdata);
+    DHT_STACK_UNWIND(unlink, frame, local->op_ret, local->op_errno,
+                     &local->preparent, &local->postparent, xdata);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag,
+tier_unlink(call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag,
             dict_t *xdata)
 {
-        xlator_t                *cached_subvol = NULL;
-        xlator_t                *hashed_subvol = NULL;
-        dht_conf_t              *conf          = NULL;
-        int                      op_errno      = -1;
-        dht_local_t             *local         = NULL;
-        int                      ret           = -1;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, loc, NULL, GF_FOP_UNLINK);
-        if (!local) {
-                op_errno = ENOMEM;
-
-                goto err;
-        }
-
-        hashed_subvol = TIER_HASHED_SUBVOL;
-
-        cached_subvol = local->cached_subvol;
-        if (!cached_subvol) {
-                gf_msg_debug (this->name, 0,
-                              "no cached subvolume for path=%s", loc->path);
-                op_errno = EINVAL;
-                goto err;
-        }
-
-        local->flags = xflag;
-        if (IA_ISREG (loc->inode->ia_type) &&
-            (hashed_subvol == cached_subvol)) {
-                /*
-                 * File resides in cold tier. We need to stat
-                 * the file to see if it is being promoted.
-                 * If yes we need to delete the destination
-                 * file as well.
-                 *
-                 * Currently we are doing this check only for
-                 * regular files.
-                 */
-                xdata = xdata ? dict_ref (xdata) : dict_new ();
-                if (xdata) {
-                        ret = dict_set_int8 (xdata, DHT_IATT_IN_XDATA_KEY, 1);
-                        if (ret) {
-                                gf_msg_debug (this->name, 0,
-                                        "Failed to set dictionary key %s",
-                                         DHT_IATT_IN_XDATA_KEY);
-                        }
-                }
-        }
-
+    xlator_t *cached_subvol = NULL;
+    xlator_t *hashed_subvol = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = -1;
+    dht_local_t *local = NULL;
+    int ret = -1;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, loc, NULL, GF_FOP_UNLINK);
+    if (!local) {
+        op_errno = ENOMEM;
+
+        goto err;
+    }
+
+    hashed_subvol = TIER_HASHED_SUBVOL;
+
+    cached_subvol = local->cached_subvol;
+    if (!cached_subvol) {
+        gf_msg_debug(this->name, 0, "no cached subvolume for path=%s",
+                     loc->path);
+        op_errno = EINVAL;
+        goto err;
+    }
+
+    local->flags = xflag;
+    if (IA_ISREG(loc->inode->ia_type) && (hashed_subvol == cached_subvol)) {
         /*
-         * File is on hot tier, delete the data file first, then
-         * linkfile from cold.
+         * File resides in cold tier. We need to stat
+         * the file to see if it is being promoted.
+         * If yes we need to delete the destination
+         * file as well.
+         *
+         * Currently we are doing this check only for
+         * regular files.
          */
-        STACK_WIND_COOKIE (frame, tier_unlink_cbk, cached_subvol,
-                           cached_subvol, cached_subvol->fops->unlink, loc,
-                           xflag, xdata);
-        if (xdata)
-                dict_unref (xdata);
-        return 0;
+        xdata = xdata ? dict_ref(xdata) : dict_new();
+        if (xdata) {
+            ret = dict_set_int8(xdata, DHT_IATT_IN_XDATA_KEY, 1);
+            if (ret) {
+                gf_msg_debug(this->name, 0, "Failed to set dictionary key %s",
+                             DHT_IATT_IN_XDATA_KEY);
+            }
+        }
+    }
+
+    /*
+     * File is on hot tier, delete the data file first, then
+     * linkfile from cold.
+     */
+    STACK_WIND_COOKIE(frame, tier_unlink_cbk, cached_subvol, cached_subvol,
+                      cached_subvol->fops->unlink, loc, xflag, xdata);
+    if (xdata)
+        dict_unref(xdata);
+    return 0;
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (unlink, frame, -1, op_errno, NULL, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(unlink, frame, -1, op_errno, NULL, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_readdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                 int op_ret, int op_errno, gf_dirent_t *orig_entries,
-                 dict_t *xdata)
+tier_readdir_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                 int op_errno, gf_dirent_t *orig_entries, dict_t *xdata)
 {
-        gf_dirent_t   entries;
-        gf_dirent_t  *orig_entry = NULL;
-        gf_dirent_t  *entry = NULL;
-        int           count = 0;
-
-        INIT_LIST_HEAD (&entries.list);
-
-        if (op_ret < 0)
-                goto unwind;
-
-        list_for_each_entry (orig_entry, (&orig_entries->list), list) {
-                entry = gf_dirent_for_name (orig_entry->d_name);
-                if (!entry) {
-                        gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                                DHT_MSG_NO_MEMORY,
-                                "Memory allocation failed ");
-                        goto unwind;
-                }
+    gf_dirent_t entries;
+    gf_dirent_t *orig_entry = NULL;
+    gf_dirent_t *entry = NULL;
+    int count = 0;
+
+    INIT_LIST_HEAD(&entries.list);
+
+    if (op_ret < 0)
+        goto unwind;
+
+    list_for_each_entry(orig_entry, (&orig_entries->list), list)
+    {
+        entry = gf_dirent_for_name(orig_entry->d_name);
+        if (!entry) {
+            gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+                   "Memory allocation failed ");
+            goto unwind;
+        }
 
-                entry->d_off  = orig_entry->d_off;
-                entry->d_ino  = orig_entry->d_ino;
-                entry->d_type = orig_entry->d_type;
-                entry->d_len  = orig_entry->d_len;
+        entry->d_off = orig_entry->d_off;
+        entry->d_ino = orig_entry->d_ino;
+        entry->d_type = orig_entry->d_type;
+        entry->d_len = orig_entry->d_len;
 
-                list_add_tail (&entry->list, &entries.list);
-                count++;
-        }
-        op_ret = count;
+        list_add_tail(&entry->list, &entries.list);
+        count++;
+    }
+    op_ret = count;
 
 unwind:
-        if (op_ret < 0)
-                op_ret = 0;
+    if (op_ret < 0)
+        op_ret = 0;
 
-        DHT_STACK_UNWIND (readdir, frame, op_ret, op_errno, &entries, NULL);
+    DHT_STACK_UNWIND(readdir, frame, op_ret, op_errno, &entries, NULL);
 
-        gf_dirent_free (&entries);
+    gf_dirent_free(&entries);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+tier_readdirp_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
                   int op_errno, gf_dirent_t *orig_entries, dict_t *xdata)
 {
-        dht_local_t  *local = NULL;
-        gf_dirent_t   entries;
-        gf_dirent_t  *orig_entry = NULL;
-        gf_dirent_t  *entry = NULL;
-        xlator_t     *prev = NULL;
-        xlator_t     *next_subvol = NULL;
-        off_t         next_offset = 0;
-        int           count = 0;
-        dht_conf_t   *conf   = NULL;
-        int           ret    = 0;
-        inode_table_t           *itable = NULL;
-        inode_t                 *inode = NULL;
-
-        INIT_LIST_HEAD (&entries.list);
-        prev = cookie;
-        local = frame->local;
-        itable = local->fd ? local->fd->inode->table : NULL;
-
-        conf  = this->private;
-        GF_VALIDATE_OR_GOTO(this->name, conf, unwind);
-
-        if (op_ret < 0)
-                goto done;
-
-        list_for_each_entry (orig_entry, (&orig_entries->list), list) {
-                next_offset = orig_entry->d_off;
-
-                if (IA_ISINVAL(orig_entry->d_stat.ia_type)) {
-                        /*stat failed somewhere- ignore this entry*/
-                        continue;
-                }
+    dht_local_t *local = NULL;
+    gf_dirent_t entries;
+    gf_dirent_t *orig_entry = NULL;
+    gf_dirent_t *entry = NULL;
+    xlator_t *prev = NULL;
+    xlator_t *next_subvol = NULL;
+    off_t next_offset = 0;
+    int count = 0;
+    dht_conf_t *conf = NULL;
+    int ret = 0;
+    inode_table_t *itable = NULL;
+    inode_t *inode = NULL;
+
+    INIT_LIST_HEAD(&entries.list);
+    prev = cookie;
+    local = frame->local;
+    itable = local->fd ? local->fd->inode->table : NULL;
+
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, unwind);
+
+    if (op_ret < 0)
+        goto done;
+
+    list_for_each_entry(orig_entry, (&orig_entries->list), list)
+    {
+        next_offset = orig_entry->d_off;
+
+        if (IA_ISINVAL(orig_entry->d_stat.ia_type)) {
+            /*stat failed somewhere- ignore this entry*/
+            continue;
+        }
 
-                entry = gf_dirent_for_name (orig_entry->d_name);
-                if (!entry) {
+        entry = gf_dirent_for_name(orig_entry->d_name);
+        if (!entry) {
+            goto unwind;
+        }
 
-                        goto unwind;
-                }
+        entry->d_off = orig_entry->d_off;
+        entry->d_stat = orig_entry->d_stat;
+        entry->d_ino = orig_entry->d_ino;
+        entry->d_type = orig_entry->d_type;
+        entry->d_len = orig_entry->d_len;
 
-                entry->d_off  = orig_entry->d_off;
-                entry->d_stat = orig_entry->d_stat;
-                entry->d_ino  = orig_entry->d_ino;
-                entry->d_type = orig_entry->d_type;
-                entry->d_len  = orig_entry->d_len;
-
-                if (orig_entry->dict)
-                        entry->dict = dict_ref (orig_entry->dict);
-
-                if (check_is_linkfile (NULL, (&orig_entry->d_stat),
-                                       orig_entry->dict,
-                                       conf->link_xattr_name)) {
-                        goto entries;
-
-                } else if (IA_ISDIR(entry->d_stat.ia_type)) {
-                        if (orig_entry->inode) {
-                                dht_inode_ctx_time_update (orig_entry->inode,
-                                                           this, &entry->d_stat,
-                                                           1);
-                        }
-                } else {
-                        if (orig_entry->inode) {
-                                ret = dht_layout_preset (this, prev,
-                                                         orig_entry->inode);
-                                if (ret)
-                                        gf_msg (this->name, GF_LOG_WARNING, 0,
-                                                DHT_MSG_LAYOUT_SET_FAILED,
-                                                "failed to link the layout "
-                                                "in inode");
-
-                                entry->inode = inode_ref (orig_entry->inode);
-                        } else if (itable) {
-                                /*
-                                 * orig_entry->inode might be null if any upper
-                                 * layer xlators below client set to null, to
-                                 * force a lookup on the inode even if the inode
-                                 * is present in the inode table. In that case
-                                 * we just update the ctx to make sure we didn't
-                                 * missed anything.
-                                 */
-                                inode = inode_find (itable,
-                                                    orig_entry->d_stat.ia_gfid);
-                                if (inode) {
-                                        ret = dht_layout_preset
-                                                (this, TIER_HASHED_SUBVOL,
-                                                 inode);
-                                        if (ret)
-                                                gf_msg (this->name,
-                                                     GF_LOG_WARNING, 0,
-                                                     DHT_MSG_LAYOUT_SET_FAILED,
-                                                     "failed to link the layout"
-                                                     " in inode");
-                                        inode_unref (inode);
-                                        inode = NULL;
-                                }
-                        }
-                }
+        if (orig_entry->dict)
+            entry->dict = dict_ref(orig_entry->dict);
 
-entries:
-                list_add_tail (&entry->list, &entries.list);
-                count++;
-        }
-        op_ret = count;
+        if (check_is_linkfile(NULL, (&orig_entry->d_stat), orig_entry->dict,
+                              conf->link_xattr_name)) {
+            goto entries;
 
-done:
-        if (count == 0) {
-                /* non-zero next_offset means that
-                   EOF is not yet hit on the current subvol
-                */
-                if (next_offset != 0) {
-                        next_subvol = prev;
-                } else {
-                        goto unwind;
+        } else if (IA_ISDIR(entry->d_stat.ia_type)) {
+            if (orig_entry->inode) {
+                dht_inode_ctx_time_update(orig_entry->inode, this,
+                                          &entry->d_stat, 1);
+            }
+        } else {
+            if (orig_entry->inode) {
+                ret = dht_layout_preset(this, prev, orig_entry->inode);
+                if (ret)
+                    gf_msg(this->name, GF_LOG_WARNING, 0,
+                           DHT_MSG_LAYOUT_SET_FAILED,
+                           "failed to link the layout "
+                           "in inode");
+
+                entry->inode = inode_ref(orig_entry->inode);
+            } else if (itable) {
+                /*
+                 * orig_entry->inode might be null if any upper
+                 * layer xlators below client set to null, to
+                 * force a lookup on the inode even if the inode
+                 * is present in the inode table. In that case
+                 * we just update the ctx to make sure we didn't
+                 * missed anything.
+                 */
+                inode = inode_find(itable, orig_entry->d_stat.ia_gfid);
+                if (inode) {
+                    ret = dht_layout_preset(this, TIER_HASHED_SUBVOL, inode);
+                    if (ret)
+                        gf_msg(this->name, GF_LOG_WARNING, 0,
+                               DHT_MSG_LAYOUT_SET_FAILED,
+                               "failed to link the layout"
+                               " in inode");
+                    inode_unref(inode);
+                    inode = NULL;
                 }
+            }
+        }
+
+    entries:
+        list_add_tail(&entry->list, &entries.list);
+        count++;
+    }
+    op_ret = count;
 
-                STACK_WIND_COOKIE (frame, tier_readdirp_cbk, next_subvol,
-                                   next_subvol, next_subvol->fops->readdirp,
-                                   local->fd, local->size, next_offset,
-                                   local->xattr);
-                return 0;
+done:
+    if (count == 0) {
+        /* non-zero next_offset means that
+           EOF is not yet hit on the current subvol
+        */
+        if (next_offset != 0) {
+            next_subvol = prev;
+        } else {
+            goto unwind;
         }
 
+        STACK_WIND_COOKIE(frame, tier_readdirp_cbk, next_subvol, next_subvol,
+                          next_subvol->fops->readdirp, local->fd, local->size,
+                          next_offset, local->xattr);
+        return 0;
+    }
+
 unwind:
-        if (op_ret < 0)
-                op_ret = 0;
+    if (op_ret < 0)
+        op_ret = 0;
 
-        DHT_STACK_UNWIND (readdirp, frame, op_ret, op_errno, &entries, NULL);
+    DHT_STACK_UNWIND(readdirp, frame, op_ret, op_errno, &entries, NULL);
 
-        gf_dirent_free (&entries);
+    gf_dirent_free(&entries);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_do_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+tier_do_readdir(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
                 off_t yoff, int whichop, dict_t *dict)
 {
-        dht_local_t  *local         = NULL;
-        int           op_errno      = -1;
-        xlator_t     *hashed_subvol = NULL;
-        int           ret           = 0;
-        dht_conf_t   *conf          = NULL;
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (fd, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, NULL, NULL, whichop);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
+    dht_local_t *local = NULL;
+    int op_errno = -1;
+    xlator_t *hashed_subvol = NULL;
+    int ret = 0;
+    dht_conf_t *conf = NULL;
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(fd, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, NULL, NULL, whichop);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    local->fd = fd_ref(fd);
+    local->size = size;
+    local->xattr_req = (dict) ? dict_ref(dict) : NULL;
+
+    hashed_subvol = TIER_HASHED_SUBVOL;
+
+    /* TODO: do proper readdir */
+    if (whichop == GF_FOP_READDIRP) {
+        if (dict)
+            local->xattr = dict_ref(dict);
+        else
+            local->xattr = dict_new();
+
+        if (local->xattr) {
+            ret = dict_set_uint32(local->xattr, conf->link_xattr_name, 256);
+            if (ret)
+                gf_msg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+                       "Failed to set dictionary value"
+                       " : key = %s",
+                       conf->link_xattr_name);
         }
 
-        local->fd = fd_ref (fd);
-        local->size = size;
-        local->xattr_req = (dict) ? dict_ref (dict) : NULL;
-
-        hashed_subvol = TIER_HASHED_SUBVOL;
+        STACK_WIND_COOKIE(frame, tier_readdirp_cbk, hashed_subvol,
+                          hashed_subvol, hashed_subvol->fops->readdirp, fd,
+                          size, yoff, local->xattr);
 
+    } else {
+        STACK_WIND_COOKIE(frame, tier_readdir_cbk, hashed_subvol, hashed_subvol,
+                          hashed_subvol->fops->readdir, fd, size, yoff,
+                          local->xattr);
+    }
 
-        /* TODO: do proper readdir */
-        if (whichop == GF_FOP_READDIRP) {
-                if (dict)
-                        local->xattr = dict_ref (dict);
-                else
-                        local->xattr = dict_new ();
-
-                if (local->xattr) {
-                        ret = dict_set_uint32 (local->xattr,
-                                               conf->link_xattr_name, 256);
-                        if (ret)
-                                gf_msg (this->name, GF_LOG_WARNING, 0,
-                                        DHT_MSG_DICT_SET_FAILED,
-                                        "Failed to set dictionary value"
-                                        " : key = %s",
-                                        conf->link_xattr_name);
-
-                }
-
-                STACK_WIND_COOKIE (frame, tier_readdirp_cbk, hashed_subvol,
-                                   hashed_subvol, hashed_subvol->fops->readdirp,
-                                   fd, size, yoff, local->xattr);
-
-        } else {
-                STACK_WIND_COOKIE (frame, tier_readdir_cbk, hashed_subvol,
-                                   hashed_subvol, hashed_subvol->fops->readdir,
-                                   fd, size, yoff, local->xattr);
-        }
-
-        return 0;
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (readdir, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(readdir, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
 
 int
-tier_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+tier_readdir(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
              off_t yoff, dict_t *xdata)
 {
-        int          op = GF_FOP_READDIR;
-        dht_conf_t  *conf = NULL;
-        int          i = 0;
-
-        conf = this->private;
-        if (!conf)
-                goto out;
-
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                if (!conf->subvolume_status[i]) {
-                        op = GF_FOP_READDIRP;
-                        break;
-                }
+    int op = GF_FOP_READDIR;
+    dht_conf_t *conf = NULL;
+    int i = 0;
+
+    conf = this->private;
+    if (!conf)
+        goto out;
+
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        if (!conf->subvolume_status[i]) {
+            op = GF_FOP_READDIRP;
+            break;
         }
+    }
 
-        if (conf->use_readdirp)
-                op = GF_FOP_READDIRP;
+    if (conf->use_readdirp)
+        op = GF_FOP_READDIRP;
 
 out:
-        tier_do_readdir (frame, this, fd, size, yoff, op, 0);
-        return 0;
+    tier_do_readdir(frame, this, fd, size, yoff, op, 0);
+    return 0;
 }
 
 int
-tier_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
-               off_t yoff, dict_t *dict)
+tier_readdirp(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+              off_t yoff, dict_t *dict)
 {
-        tier_do_readdir (frame, this, fd, size, yoff, GF_FOP_READDIRP, dict);
-        return 0;
+    tier_do_readdir(frame, this, fd, size, yoff, GF_FOP_READDIRP, dict);
+    return 0;
 }
 
 int
-tier_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno, struct statvfs *statvfs,
-                dict_t *xdata)
+tier_statfs_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+                int op_errno, struct statvfs *statvfs, dict_t *xdata)
 {
-        gf_boolean_t            event              = _gf_false;
-        qdstatfs_action_t       action             = qdstatfs_action_OFF;
-        dht_local_t             *local             = NULL;
-        int                     this_call_cnt      = 0;
-        int                     bsize              = 0;
-        int                     frsize             = 0;
-        GF_UNUSED int           ret                = 0;
-        unsigned long           new_usage          = 0;
-        unsigned long           cur_usage          = 0;
-        xlator_t                *prev              = NULL;
-        dht_conf_t              *conf              = NULL;
-        tier_statvfs_t          *tier_stat         = NULL;
-
-        prev = cookie;
-        local = frame->local;
-        GF_ASSERT (local);
-
-        conf = this->private;
-
-        if (xdata)
-                ret = dict_get_int8 (xdata, "quota-deem-statfs",
-                                     (int8_t *)&event);
-
-        tier_stat = &local->tier_statvfs;
-
-        LOCK (&frame->lock);
-        {
-                if (op_ret == -1) {
-                        local->op_errno = op_errno;
-                        goto unlock;
-                }
-                if (!statvfs) {
-                        op_errno = EINVAL;
-                        local->op_ret = -1;
-                        goto unlock;
-                }
-                local->op_ret = 0;
+    gf_boolean_t event = _gf_false;
+    qdstatfs_action_t action = qdstatfs_action_OFF;
+    dht_local_t *local = NULL;
+    int this_call_cnt = 0;
+    int bsize = 0;
+    int frsize = 0;
+    GF_UNUSED int ret = 0;
+    unsigned long new_usage = 0;
+    unsigned long cur_usage = 0;
+    xlator_t *prev = NULL;
+    dht_conf_t *conf = NULL;
+    tier_statvfs_t *tier_stat = NULL;
+
+    prev = cookie;
+    local = frame->local;
+    GF_ASSERT(local);
+
+    conf = this->private;
+
+    if (xdata)
+        ret = dict_get_int8(xdata, "quota-deem-statfs", (int8_t *)&event);
+
+    tier_stat = &local->tier_statvfs;
+
+    LOCK(&frame->lock);
+    {
+        if (op_ret == -1) {
+            local->op_errno = op_errno;
+            goto unlock;
+        }
+        if (!statvfs) {
+            op_errno = EINVAL;
+            local->op_ret = -1;
+            goto unlock;
+        }
+        local->op_ret = 0;
+
+        if (local->quota_deem_statfs) {
+            if (event == _gf_true) {
+                action = qdstatfs_action_COMPARE;
+            } else {
+                action = qdstatfs_action_NEGLECT;
+            }
+        } else {
+            if (event == _gf_true) {
+                action = qdstatfs_action_REPLACE;
+                local->quota_deem_statfs = _gf_true;
+            }
+        }
 
-                if (local->quota_deem_statfs) {
-                        if (event == _gf_true) {
-                                action = qdstatfs_action_COMPARE;
-                        } else {
-                                action = qdstatfs_action_NEGLECT;
-                        }
-                } else {
-
-                        if (event == _gf_true) {
-                                action = qdstatfs_action_REPLACE;
-                                local->quota_deem_statfs = _gf_true;
-                        }
-                }
+        if (local->quota_deem_statfs) {
+            switch (action) {
+                case qdstatfs_action_NEGLECT:
+                    goto unlock;
 
-                if (local->quota_deem_statfs) {
-                        switch (action) {
-                        case qdstatfs_action_NEGLECT:
-                                goto unlock;
-
-                        case qdstatfs_action_REPLACE:
-                                local->statvfs = *statvfs;
-                                goto unlock;
-
-                        case qdstatfs_action_COMPARE:
-                                new_usage = statvfs->f_blocks -
-                                             statvfs->f_bfree;
-                                cur_usage = local->statvfs.f_blocks -
-                                             local->statvfs.f_bfree;
-
-                                /* Take the max of the usage from subvols */
-                                if (new_usage >= cur_usage)
-                                        local->statvfs = *statvfs;
-                                goto unlock;
-
-                        default:
-                                break;
-                        }
-                }
+                case qdstatfs_action_REPLACE:
+                    local->statvfs = *statvfs;
+                    goto unlock;
 
-                if (local->statvfs.f_bsize != 0) {
-                        bsize = max(local->statvfs.f_bsize, statvfs->f_bsize);
-                        frsize = max(local->statvfs.f_frsize, statvfs->f_frsize);
-                        dht_normalize_stats(&local->statvfs, bsize, frsize);
-                        dht_normalize_stats(statvfs, bsize, frsize);
-                } else {
-                        local->statvfs.f_bsize    = statvfs->f_bsize;
-                        local->statvfs.f_frsize   = statvfs->f_frsize;
-                }
+                case qdstatfs_action_COMPARE:
+                    new_usage = statvfs->f_blocks - statvfs->f_bfree;
+                    cur_usage = local->statvfs.f_blocks -
+                                local->statvfs.f_bfree;
 
-                if (prev == TIER_HASHED_SUBVOL) {
-                        local->statvfs.f_blocks   = statvfs->f_blocks;
-                        local->statvfs.f_files    = statvfs->f_files;
-                        local->statvfs.f_fsid     = statvfs->f_fsid;
-                        local->statvfs.f_flag     = statvfs->f_flag;
-                        local->statvfs.f_namemax  = statvfs->f_namemax;
-                        tier_stat->blocks_used    = (statvfs->f_blocks - statvfs->f_bfree);
-                        tier_stat->pblocks_used   = (statvfs->f_blocks - statvfs->f_bavail);
-                        tier_stat->files_used     = (statvfs->f_files - statvfs->f_ffree);
-                        tier_stat->pfiles_used    = (statvfs->f_files - statvfs->f_favail);
-                        tier_stat->hashed_fsid    = statvfs->f_fsid;
-                } else {
-                        tier_stat->unhashed_fsid      = statvfs->f_fsid;
-                        tier_stat->unhashed_blocks_used    = (statvfs->f_blocks - statvfs->f_bfree);
-                        tier_stat->unhashed_pblocks_used   = (statvfs->f_blocks - statvfs->f_bavail);
-                        tier_stat->unhashed_files_used     = (statvfs->f_files - statvfs->f_ffree);
-                        tier_stat->unhashed_pfiles_used    = (statvfs->f_files - statvfs->f_favail);
-                }
+                    /* Take the max of the usage from subvols */
+                    if (new_usage >= cur_usage)
+                        local->statvfs = *statvfs;
+                    goto unlock;
 
+                default:
+                    break;
+            }
         }
-unlock:
-        UNLOCK (&frame->lock);
-
-        this_call_cnt = dht_frame_return (frame);
-        if (is_last_call (this_call_cnt)) {
-                if (tier_stat->unhashed_fsid != tier_stat->hashed_fsid) {
-                        tier_stat->blocks_used    += tier_stat->unhashed_blocks_used;
-                        tier_stat->pblocks_used   += tier_stat->unhashed_pblocks_used;
-                        tier_stat->files_used     += tier_stat->unhashed_files_used;
-                        tier_stat->pfiles_used    += tier_stat->unhashed_pfiles_used;
-                }
-                local->statvfs.f_bfree = local->statvfs.f_blocks -
-                        tier_stat->blocks_used;
-                local->statvfs.f_bavail = local->statvfs.f_blocks -
-                        tier_stat->pblocks_used;
-                local->statvfs.f_ffree = local->statvfs.f_files -
-                        tier_stat->files_used;
-                local->statvfs.f_favail = local->statvfs.f_files -
-                        tier_stat->pfiles_used;
-                DHT_STACK_UNWIND (statfs, frame, local->op_ret, local->op_errno,
-                                  &local->statvfs, xdata);
+
+        if (local->statvfs.f_bsize != 0) {
+            bsize = max(local->statvfs.f_bsize, statvfs->f_bsize);
+            frsize = max(local->statvfs.f_frsize, statvfs->f_frsize);
+            dht_normalize_stats(&local->statvfs, bsize, frsize);
+            dht_normalize_stats(statvfs, bsize, frsize);
+        } else {
+            local->statvfs.f_bsize = statvfs->f_bsize;
+            local->statvfs.f_frsize = statvfs->f_frsize;
         }
 
-        return 0;
+        if (prev == TIER_HASHED_SUBVOL) {
+            local->statvfs.f_blocks = statvfs->f_blocks;
+            local->statvfs.f_files = statvfs->f_files;
+            local->statvfs.f_fsid = statvfs->f_fsid;
+            local->statvfs.f_flag = statvfs->f_flag;
+            local->statvfs.f_namemax = statvfs->f_namemax;
+            tier_stat->blocks_used = (statvfs->f_blocks - statvfs->f_bfree);
+            tier_stat->pblocks_used = (statvfs->f_blocks - statvfs->f_bavail);
+            tier_stat->files_used = (statvfs->f_files - statvfs->f_ffree);
+            tier_stat->pfiles_used = (statvfs->f_files - statvfs->f_favail);
+            tier_stat->hashed_fsid = statvfs->f_fsid;
+        } else {
+            tier_stat->unhashed_fsid = statvfs->f_fsid;
+            tier_stat->unhashed_blocks_used = (statvfs->f_blocks -
+                                               statvfs->f_bfree);
+            tier_stat->unhashed_pblocks_used = (statvfs->f_blocks -
+                                                statvfs->f_bavail);
+            tier_stat->unhashed_files_used = (statvfs->f_files -
+                                              statvfs->f_ffree);
+            tier_stat->unhashed_pfiles_used = (statvfs->f_files -
+                                               statvfs->f_favail);
+        }
+    }
+unlock:
+    UNLOCK(&frame->lock);
+
+    this_call_cnt = dht_frame_return(frame);
+    if (is_last_call(this_call_cnt)) {
+        if (tier_stat->unhashed_fsid != tier_stat->hashed_fsid) {
+            tier_stat->blocks_used += tier_stat->unhashed_blocks_used;
+            tier_stat->pblocks_used += tier_stat->unhashed_pblocks_used;
+            tier_stat->files_used += tier_stat->unhashed_files_used;
+            tier_stat->pfiles_used += tier_stat->unhashed_pfiles_used;
+        }
+        local->statvfs.f_bfree = local->statvfs.f_blocks -
+                                 tier_stat->blocks_used;
+        local->statvfs.f_bavail = local->statvfs.f_blocks -
+                                  tier_stat->pblocks_used;
+        local->statvfs.f_ffree = local->statvfs.f_files - tier_stat->files_used;
+        local->statvfs.f_favail = local->statvfs.f_files -
+                                  tier_stat->pfiles_used;
+        DHT_STACK_UNWIND(statfs, frame, local->op_ret, local->op_errno,
+                         &local->statvfs, xdata);
+    }
+
+    return 0;
 }
 
-
 int
-tier_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+tier_statfs(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
 {
-        dht_local_t      *local  = NULL;
-        dht_conf_t       *conf = NULL;
-        int               op_errno = -1;
-        int               i = -1;
-        inode_t          *inode         = NULL;
-        inode_table_t    *itable        = NULL;
-        uuid_t            root_gfid     = {0, };
-        loc_t             newloc        = {0, };
-
-        VALIDATE_OR_GOTO (frame, err);
-        VALIDATE_OR_GOTO (this, err);
-        VALIDATE_OR_GOTO (loc, err);
-        VALIDATE_OR_GOTO (this->private, err);
-
-        conf = this->private;
-
-        local = dht_local_init (frame, NULL, NULL, GF_FOP_STATFS);
-        if (!local) {
-                op_errno = ENOMEM;
-                goto err;
+    dht_local_t *local = NULL;
+    dht_conf_t *conf = NULL;
+    int op_errno = -1;
+    int i = -1;
+    inode_t *inode = NULL;
+    inode_table_t *itable = NULL;
+    uuid_t root_gfid = {
+        0,
+    };
+    loc_t newloc = {
+        0,
+    };
+
+    VALIDATE_OR_GOTO(frame, err);
+    VALIDATE_OR_GOTO(this, err);
+    VALIDATE_OR_GOTO(loc, err);
+    VALIDATE_OR_GOTO(this->private, err);
+
+    conf = this->private;
+
+    local = dht_local_init(frame, NULL, NULL, GF_FOP_STATFS);
+    if (!local) {
+        op_errno = ENOMEM;
+        goto err;
+    }
+
+    if (loc->inode && !IA_ISDIR(loc->inode->ia_type)) {
+        itable = loc->inode->table;
+        if (!itable) {
+            op_errno = EINVAL;
+            goto err;
         }
 
-        if (loc->inode && !IA_ISDIR (loc->inode->ia_type)) {
-                itable = loc->inode->table;
-                if (!itable) {
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                loc = &local->loc2;
-                root_gfid[15] = 1;
+        loc = &local->loc2;
+        root_gfid[15] = 1;
 
-                inode = inode_find (itable, root_gfid);
-                if (!inode) {
-                        op_errno = EINVAL;
-                        goto err;
-                }
-
-                dht_build_root_loc (inode, &newloc);
-                loc = &newloc;
+        inode = inode_find(itable, root_gfid);
+        if (!inode) {
+            op_errno = EINVAL;
+            goto err;
         }
 
-        local->call_cnt = conf->subvolume_cnt;
+        dht_build_root_loc(inode, &newloc);
+        loc = &newloc;
+    }
 
-        for (i = 0; i < conf->subvolume_cnt; i++) {
-                STACK_WIND_COOKIE (frame, tier_statfs_cbk, conf->subvolumes[i],
-                                   conf->subvolumes[i],
-                                   conf->subvolumes[i]->fops->statfs, loc,
-                                   xdata);
-        }
+    local->call_cnt = conf->subvolume_cnt;
 
-        return 0;
+    for (i = 0; i < conf->subvolume_cnt; i++) {
+        STACK_WIND_COOKIE(frame, tier_statfs_cbk, conf->subvolumes[i],
+                          conf->subvolumes[i],
+                          conf->subvolumes[i]->fops->statfs, loc, xdata);
+    }
+
+    return 0;
 
 err:
-        op_errno = (op_errno == -1) ? errno : op_errno;
-        DHT_STACK_UNWIND (statfs, frame, -1, op_errno, NULL, NULL);
+    op_errno = (op_errno == -1) ? errno : op_errno;
+    DHT_STACK_UNWIND(statfs, frame, -1, op_errno, NULL, NULL);
 
-        return 0;
+    return 0;
 }
diff --git a/xlators/cluster/dht/src/tier.c b/xlators/cluster/dht/src/tier.c
index 63eb65be302..f7fd6ef22e2 100644
--- a/xlators/cluster/dht/src/tier.c
+++ b/xlators/cluster/dht/src/tier.c
@@ -38,103 +38,101 @@ static gfdb_methods_t gfdb_methods;
  * Closes all the fds and frees the qfile_array
  * */
 static void
-qfile_array_free (tier_qfile_array_t *qfile_array)
+qfile_array_free(tier_qfile_array_t *qfile_array)
 {
-        ssize_t i = 0;
-
-        if (qfile_array) {
-                if (qfile_array->fd_array) {
-                        for (i = 0; i < qfile_array->array_size; i++) {
-                                if (qfile_array->fd_array[i] != -1) {
-                                        sys_close (qfile_array->fd_array[i]);
-                                }
-                        }
+    ssize_t i = 0;
+
+    if (qfile_array) {
+        if (qfile_array->fd_array) {
+            for (i = 0; i < qfile_array->array_size; i++) {
+                if (qfile_array->fd_array[i] != -1) {
+                    sys_close(qfile_array->fd_array[i]);
                 }
-                GF_FREE (qfile_array->fd_array);
+            }
         }
-        GF_FREE (qfile_array);
+        GF_FREE(qfile_array->fd_array);
+    }
+    GF_FREE(qfile_array);
 }
 
-
 /* Create a new query file list with given size */
 static tier_qfile_array_t *
-qfile_array_new (ssize_t array_size)
+qfile_array_new(ssize_t array_size)
 {
-        int ret                         = -1;
-        tier_qfile_array_t *qfile_array   = NULL;
-        ssize_t i                       = 0;
-
-        GF_VALIDATE_OR_GOTO ("tier", (array_size > 0), out);
-
-        qfile_array = GF_CALLOC (1, sizeof (tier_qfile_array_t),
-                                gf_tier_mt_qfile_array_t);
-        if (!qfile_array) {
-                gf_msg ("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to allocate memory for tier_qfile_array_t");
-                goto out;
-        }
-
-        qfile_array->fd_array = GF_MALLOC (array_size * sizeof (int),
-                                           gf_dht_mt_int32_t);
-        if (!qfile_array->fd_array) {
-                gf_msg ("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to allocate memory for "
-                        "tier_qfile_array_t->fd_array");
-                goto out;
-        }
-
-        /* Init all the fds to -1 */
-        for (i = 0; i < array_size; i++) {
-                qfile_array->fd_array[i] = -1;
-        }
-
-        qfile_array->array_size = array_size;
-        qfile_array->next_index = 0;
-
-        /* Set exhausted count to list size as the list is empty */
-        qfile_array->exhausted_count = qfile_array->array_size;
-
-        ret = 0;
+    int ret = -1;
+    tier_qfile_array_t *qfile_array = NULL;
+    ssize_t i = 0;
+
+    GF_VALIDATE_OR_GOTO("tier", (array_size > 0), out);
+
+    qfile_array = GF_CALLOC(1, sizeof(tier_qfile_array_t),
+                            gf_tier_mt_qfile_array_t);
+    if (!qfile_array) {
+        gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to allocate memory for tier_qfile_array_t");
+        goto out;
+    }
+
+    qfile_array->fd_array = GF_MALLOC(array_size * sizeof(int),
+                                      gf_dht_mt_int32_t);
+    if (!qfile_array->fd_array) {
+        gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to allocate memory for "
+               "tier_qfile_array_t->fd_array");
+        goto out;
+    }
+
+    /* Init all the fds to -1 */
+    for (i = 0; i < array_size; i++) {
+        qfile_array->fd_array[i] = -1;
+    }
+
+    qfile_array->array_size = array_size;
+    qfile_array->next_index = 0;
+
+    /* Set exhausted count to list size as the list is empty */
+    qfile_array->exhausted_count = qfile_array->array_size;
+
+    ret = 0;
 out:
-        if (ret) {
-                qfile_array_free (qfile_array);
-                qfile_array = NULL;
-        }
-        return qfile_array;
+    if (ret) {
+        qfile_array_free(qfile_array);
+        qfile_array = NULL;
+    }
+    return qfile_array;
 }
 
-
 /* Checks if the query file list is empty or totally exhausted. */
 static gf_boolean_t
-is_qfile_array_empty (tier_qfile_array_t *qfile_array)
+is_qfile_array_empty(tier_qfile_array_t *qfile_array)
 {
-        return (qfile_array->exhausted_count == qfile_array->array_size) ?
-                _gf_true : _gf_false;
+    return (qfile_array->exhausted_count == qfile_array->array_size)
+               ? _gf_true
+               : _gf_false;
 }
 
-
 /* Shifts the next_fd pointer to the next available fd in the list */
 static void
-shift_next_index (tier_qfile_array_t *qfile_array)
+shift_next_index(tier_qfile_array_t *qfile_array)
 {
-        int qfile_fd = 0;
-        int spin_count = 0;
+    int qfile_fd = 0;
+    int spin_count = 0;
 
-        if (is_qfile_array_empty (qfile_array)) {
-                return;
-        }
-
-        do {
-                /* change next_index in a rotional manner */
-                (qfile_array->next_index == (qfile_array->array_size - 1)) ?
-                qfile_array->next_index = 0 : qfile_array->next_index++;
+    if (is_qfile_array_empty(qfile_array)) {
+        return;
+    }
 
-                qfile_fd = (qfile_array->fd_array[qfile_array->next_index]);
+    do {
+        /* change next_index in a rotional manner */
+        (qfile_array->next_index == (qfile_array->array_size - 1))
+            ? qfile_array->next_index = 0
+            : qfile_array->next_index++;
 
-                spin_count++;
+        qfile_fd = (qfile_array->fd_array[qfile_array->next_index]);
 
-        } while ((qfile_fd == -1) && (spin_count < qfile_array->array_size));
+        spin_count++;
 
+    } while ((qfile_fd == -1) && (spin_count < qfile_array->array_size));
 }
 
 /*
@@ -149,1844 +147,1707 @@ shift_next_index (tier_qfile_array_t *qfile_array)
  * < 0  if there was failure
  * */
 static int
-read_query_record_list (tier_qfile_array_t *qfile_array,
-                          gfdb_query_record_t **query_record)
+read_query_record_list(tier_qfile_array_t *qfile_array,
+                       gfdb_query_record_t **query_record)
 {
-        int ret = -1;
-        int qfile_fd = 0;
-
-        GF_VALIDATE_OR_GOTO ("tier", qfile_array, out);
-        GF_VALIDATE_OR_GOTO ("tier", qfile_array->fd_array, out);
-
-        do {
-                if (is_qfile_array_empty (qfile_array)) {
-                        ret = 0;
-                        break;
-                }
-
-                qfile_fd = qfile_array->fd_array[qfile_array->next_index];
-                ret = gfdb_methods.gfdb_read_query_record
-                        (qfile_fd, query_record);
-                if (ret <= 0) {
-                        /*The qfile_fd has reached EOF or
-                         * there was an error.
-                         * 1. Close the exhausted fd
-                         * 2. increment the exhausted count
-                         * 3. shift next_qfile to next qfile
-                         **/
-                         sys_close (qfile_fd);
-                         qfile_array->fd_array[qfile_array->next_index] = -1;
-                         qfile_array->exhausted_count++;
-                         /* shift next_qfile to next qfile */
-                         shift_next_index (qfile_array);
-                         continue;
-                } else {
-                        /* shift next_qfile to next qfile */
-                        shift_next_index (qfile_array);
-                        break;
-                }
-        } while (1);
+    int ret = -1;
+    int qfile_fd = 0;
+
+    GF_VALIDATE_OR_GOTO("tier", qfile_array, out);
+    GF_VALIDATE_OR_GOTO("tier", qfile_array->fd_array, out);
+
+    do {
+        if (is_qfile_array_empty(qfile_array)) {
+            ret = 0;
+            break;
+        }
+
+        qfile_fd = qfile_array->fd_array[qfile_array->next_index];
+        ret = gfdb_methods.gfdb_read_query_record(qfile_fd, query_record);
+        if (ret <= 0) {
+            /*The qfile_fd has reached EOF or
+             * there was an error.
+             * 1. Close the exhausted fd
+             * 2. increment the exhausted count
+             * 3. shift next_qfile to next qfile
+             **/
+            sys_close(qfile_fd);
+            qfile_array->fd_array[qfile_array->next_index] = -1;
+            qfile_array->exhausted_count++;
+            /* shift next_qfile to next qfile */
+            shift_next_index(qfile_array);
+            continue;
+        } else {
+            /* shift next_qfile to next qfile */
+            shift_next_index(qfile_array);
+            break;
+        }
+    } while (1);
 out:
-        return ret;
+    return ret;
 }
 
-
 /* Check and update the watermark every WM_INTERVAL seconds */
-#define WM_INTERVAL            5
-#define WM_INTERVAL_EMERG      1
+#define WM_INTERVAL 5
+#define WM_INTERVAL_EMERG 1
 
 static int
-tier_check_same_node (xlator_t *this, loc_t *loc, gf_defrag_info_t *defrag)
+tier_check_same_node(xlator_t *this, loc_t *loc, gf_defrag_info_t *defrag)
 {
-        int         ret                     = -1;
-        dict_t     *dict                    = NULL;
-        char       *uuid_str                = NULL;
-        uuid_t      node_uuid               = {0,};
-
-        GF_VALIDATE_OR_GOTO ("tier", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, loc, out);
-        GF_VALIDATE_OR_GOTO (this->name, defrag, out);
-
-        if (syncop_getxattr (this, loc, &dict, GF_XATTR_NODE_UUID_KEY,
-                             NULL, NULL)) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Unable to get NODE_UUID_KEY %s %s\n",
-                        loc->name, loc->path);
-                goto out;
-        }
-
-        if (dict_get_str (dict, GF_XATTR_NODE_UUID_KEY, &uuid_str) < 0) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to get node-uuids for %s", loc->path);
-                goto out;
-        }
-
-
-        if (gf_uuid_parse (uuid_str, node_uuid)) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "uuid_parse failed for %s", loc->path);
-                goto out;
-        }
-
-        if (gf_uuid_compare (node_uuid, defrag->node_uuid)) {
-                gf_msg_debug (this->name, 0,
-                              "%s does not belong to this node", loc->path);
-                ret = 1;
-                goto out;
-        }
-
-        ret = 0;
+    int ret = -1;
+    dict_t *dict = NULL;
+    char *uuid_str = NULL;
+    uuid_t node_uuid = {
+        0,
+    };
+
+    GF_VALIDATE_OR_GOTO("tier", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, loc, out);
+    GF_VALIDATE_OR_GOTO(this->name, defrag, out);
+
+    if (syncop_getxattr(this, loc, &dict, GF_XATTR_NODE_UUID_KEY, NULL, NULL)) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Unable to get NODE_UUID_KEY %s %s\n", loc->name, loc->path);
+        goto out;
+    }
+
+    if (dict_get_str(dict, GF_XATTR_NODE_UUID_KEY, &uuid_str) < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to get node-uuids for %s", loc->path);
+        goto out;
+    }
+
+    if (gf_uuid_parse(uuid_str, node_uuid)) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "uuid_parse failed for %s", loc->path);
+        goto out;
+    }
+
+    if (gf_uuid_compare(node_uuid, defrag->node_uuid)) {
+        gf_msg_debug(this->name, 0, "%s does not belong to this node",
+                     loc->path);
+        ret = 1;
+        goto out;
+    }
+
+    ret = 0;
 out:
-        if (dict)
-                dict_unref(dict);
+    if (dict)
+        dict_unref(dict);
 
-        return ret;
+    return ret;
 }
 
 int
-tier_get_fs_stat (xlator_t *this, loc_t *root_loc)
+tier_get_fs_stat(xlator_t *this, loc_t *root_loc)
 {
-        int                     ret = 0;
-        gf_defrag_info_t       *defrag = NULL;
-        dht_conf_t             *conf   = NULL;
-        dict_t                 *xdata  = NULL;
-        struct statvfs          statfs = {0, };
-        gf_tier_conf_t         *tier_conf = NULL;
-
-
-        conf = this->private;
-        if (!conf) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "conf is NULL");
-                ret = -1;
-                goto exit;
-        }
-
-        defrag = conf->defrag;
-        if (!defrag) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "defrag is NULL");
-                ret = -1;
-                goto exit;
-        }
-
-        tier_conf = &defrag->tier_conf;
-
-        xdata = dict_new ();
-        if (!xdata) {
-                gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
-                        DHT_MSG_NO_MEMORY,
-                        "failed to allocate dictionary");
-                ret = -1;
-                goto exit;
-        }
-
-        ret = dict_set_int8 (xdata, GF_INTERNAL_IGNORE_DEEM_STATFS, 1);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_DICT_SET_FAILED,
-                        "Failed to set "
-                        GF_INTERNAL_IGNORE_DEEM_STATFS" in dict");
-                ret = -1;
-                goto exit;
-        }
-
-        /* Find how much free space is on the hot subvolume.
-         * Then see if that value */
-        /* is less than or greater than user defined watermarks.
-         * Stash results in */
-        /* the tier_conf data structure. */
-
-        ret = syncop_statfs (conf->subvolumes[1], root_loc, &statfs,
-                             xdata, NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Unable to obtain statfs.");
-                goto exit;
-        }
-
-        pthread_mutex_lock (&dm_stat_mutex);
-
-        tier_conf->block_size = statfs.f_bsize;
-        tier_conf->blocks_total = statfs.f_blocks;
-        tier_conf->blocks_used = statfs.f_blocks - statfs.f_bfree;
-
-        tier_conf->percent_full = GF_PERCENTAGE(tier_conf->blocks_used,
-                                                statfs.f_blocks);
-        pthread_mutex_unlock (&dm_stat_mutex);
+    int ret = 0;
+    gf_defrag_info_t *defrag = NULL;
+    dht_conf_t *conf = NULL;
+    dict_t *xdata = NULL;
+    struct statvfs statfs = {
+        0,
+    };
+    gf_tier_conf_t *tier_conf = NULL;
+
+    conf = this->private;
+    if (!conf) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_STATUS,
+               "conf is NULL");
+        ret = -1;
+        goto exit;
+    }
+
+    defrag = conf->defrag;
+    if (!defrag) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_STATUS,
+               "defrag is NULL");
+        ret = -1;
+        goto exit;
+    }
+
+    tier_conf = &defrag->tier_conf;
+
+    xdata = dict_new();
+    if (!xdata) {
+        gf_msg(this->name, GF_LOG_ERROR, ENOMEM, DHT_MSG_NO_MEMORY,
+               "failed to allocate dictionary");
+        ret = -1;
+        goto exit;
+    }
+
+    ret = dict_set_int8(xdata, GF_INTERNAL_IGNORE_DEEM_STATFS, 1);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_DICT_SET_FAILED,
+               "Failed to set " GF_INTERNAL_IGNORE_DEEM_STATFS " in dict");
+        ret = -1;
+        goto exit;
+    }
+
+    /* Find how much free space is on the hot subvolume.
+     * Then see if that value */
+    /* is less than or greater than user defined watermarks.
+     * Stash results in */
+    /* the tier_conf data structure. */
+
+    ret = syncop_statfs(conf->subvolumes[1], root_loc, &statfs, xdata, NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_LOG_TIER_STATUS,
+               "Unable to obtain statfs.");
+        goto exit;
+    }
+
+    pthread_mutex_lock(&dm_stat_mutex);
+
+    tier_conf->block_size = statfs.f_bsize;
+    tier_conf->blocks_total = statfs.f_blocks;
+    tier_conf->blocks_used = statfs.f_blocks - statfs.f_bfree;
+
+    tier_conf->percent_full = GF_PERCENTAGE(tier_conf->blocks_used,
+                                            statfs.f_blocks);
+    pthread_mutex_unlock(&dm_stat_mutex);
 
 exit:
-        if (xdata)
-                dict_unref (xdata);
-        return ret;
+    if (xdata)
+        dict_unref(xdata);
+    return ret;
 }
 
 static void
-tier_send_watermark_event (const char *volname,
-                           tier_watermark_op_t old_wm,
-                           tier_watermark_op_t new_wm)
+tier_send_watermark_event(const char *volname, tier_watermark_op_t old_wm,
+                          tier_watermark_op_t new_wm)
 {
-        if (old_wm == TIER_WM_LOW || old_wm == TIER_WM_NONE) {
-                if (new_wm == TIER_WM_MID) {
-                        gf_event (EVENT_TIER_WATERMARK_RAISED_TO_MID,
-                                  "vol=%s", volname);
-                } else if (new_wm == TIER_WM_HI) {
-                        gf_event (EVENT_TIER_WATERMARK_HI, "vol=%s", volname);
-                }
-        } else if (old_wm == TIER_WM_MID) {
-                if (new_wm == TIER_WM_LOW) {
-                        gf_event (EVENT_TIER_WATERMARK_DROPPED_TO_LOW,
-                                  "vol=%s", volname);
-                } else if (new_wm == TIER_WM_HI) {
-                        gf_event (EVENT_TIER_WATERMARK_HI, "vol=%s", volname);
-                }
-        } else if (old_wm == TIER_WM_HI) {
-                if (new_wm == TIER_WM_MID) {
-                        gf_event (EVENT_TIER_WATERMARK_DROPPED_TO_MID,
-                                  "vol=%s", volname);
-                } else if (new_wm == TIER_WM_LOW) {
-                        gf_event (EVENT_TIER_WATERMARK_DROPPED_TO_LOW,
-                                  "vol=%s", volname);
-                }
-        }
+    if (old_wm == TIER_WM_LOW || old_wm == TIER_WM_NONE) {
+        if (new_wm == TIER_WM_MID) {
+            gf_event(EVENT_TIER_WATERMARK_RAISED_TO_MID, "vol=%s", volname);
+        } else if (new_wm == TIER_WM_HI) {
+            gf_event(EVENT_TIER_WATERMARK_HI, "vol=%s", volname);
+        }
+    } else if (old_wm == TIER_WM_MID) {
+        if (new_wm == TIER_WM_LOW) {
+            gf_event(EVENT_TIER_WATERMARK_DROPPED_TO_LOW, "vol=%s", volname);
+        } else if (new_wm == TIER_WM_HI) {
+            gf_event(EVENT_TIER_WATERMARK_HI, "vol=%s", volname);
+        }
+    } else if (old_wm == TIER_WM_HI) {
+        if (new_wm == TIER_WM_MID) {
+            gf_event(EVENT_TIER_WATERMARK_DROPPED_TO_MID, "vol=%s", volname);
+        } else if (new_wm == TIER_WM_LOW) {
+            gf_event(EVENT_TIER_WATERMARK_DROPPED_TO_LOW, "vol=%s", volname);
+        }
+    }
 }
 
 int
-tier_check_watermark (xlator_t *this)
+tier_check_watermark(xlator_t *this)
 {
-        int                     ret       = -1;
-        gf_defrag_info_t       *defrag    = NULL;
-        dht_conf_t             *conf      = NULL;
-        gf_tier_conf_t         *tier_conf = NULL;
-        tier_watermark_op_t     wm        = TIER_WM_NONE;
+    int ret = -1;
+    gf_defrag_info_t *defrag = NULL;
+    dht_conf_t *conf = NULL;
+    gf_tier_conf_t *tier_conf = NULL;
+    tier_watermark_op_t wm = TIER_WM_NONE;
 
-        conf = this->private;
-        if (!conf)
-                goto exit;
+    conf = this->private;
+    if (!conf)
+        goto exit;
 
-        defrag = conf->defrag;
-        if (!defrag)
-                goto exit;
+    defrag = conf->defrag;
+    if (!defrag)
+        goto exit;
 
-        tier_conf = &defrag->tier_conf;
+    tier_conf = &defrag->tier_conf;
 
-        if (tier_conf->percent_full < tier_conf->watermark_low) {
-                wm = TIER_WM_LOW;
+    if (tier_conf->percent_full < tier_conf->watermark_low) {
+        wm = TIER_WM_LOW;
 
-        } else if (tier_conf->percent_full < tier_conf->watermark_hi) {
-                wm = TIER_WM_MID;
+    } else if (tier_conf->percent_full < tier_conf->watermark_hi) {
+        wm = TIER_WM_MID;
 
-        } else {
-                wm = TIER_WM_HI;
-        }
+    } else {
+        wm = TIER_WM_HI;
+    }
 
-        if (wm != tier_conf->watermark_last) {
+    if (wm != tier_conf->watermark_last) {
+        tier_send_watermark_event(tier_conf->volname, tier_conf->watermark_last,
+                                  wm);
 
-                tier_send_watermark_event (tier_conf->volname,
-                                           tier_conf->watermark_last,
-                                           wm);
+        tier_conf->watermark_last = wm;
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "Tier watermark now %d", wm);
+    }
 
-                tier_conf->watermark_last = wm;
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Tier watermark now %d", wm);
-        }
-
-        ret = 0;
+    ret = 0;
 
 exit:
-        return ret;
+    return ret;
 }
 
-
 static gf_boolean_t
-is_hot_tier_full (gf_tier_conf_t *tier_conf)
+is_hot_tier_full(gf_tier_conf_t *tier_conf)
 {
-        if (tier_conf && (tier_conf->mode == TIER_MODE_WM) &&
-           (tier_conf->watermark_last == TIER_WM_HI))
-                return _gf_true;
+    if (tier_conf && (tier_conf->mode == TIER_MODE_WM) &&
+        (tier_conf->watermark_last == TIER_WM_HI))
+        return _gf_true;
 
-        return _gf_false;
+    return _gf_false;
 }
 
 int
-tier_do_migration (xlator_t *this, int promote)
+tier_do_migration(xlator_t *this, int promote)
 {
-        gf_defrag_info_t       *defrag = NULL;
-        dht_conf_t             *conf   = NULL;
-        long                    rand = 0;
-        int                     migrate = 0;
-        gf_tier_conf_t         *tier_conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    dht_conf_t *conf = NULL;
+    long rand = 0;
+    int migrate = 0;
+    gf_tier_conf_t *tier_conf = NULL;
 
-        conf = this->private;
-        if (!conf)
-                goto exit;
+    conf = this->private;
+    if (!conf)
+        goto exit;
 
-        defrag = conf->defrag;
-        if (!defrag)
-                goto exit;
-
-        if (tier_check_watermark (this) != 0) {
-                gf_msg (this->name, GF_LOG_CRITICAL, errno,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to get watermark");
-                goto exit;
-        }
+    defrag = conf->defrag;
+    if (!defrag)
+        goto exit;
+
+    if (tier_check_watermark(this) != 0) {
+        gf_msg(this->name, GF_LOG_CRITICAL, errno, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to get watermark");
+        goto exit;
+    }
 
-        tier_conf = &defrag->tier_conf;
+    tier_conf = &defrag->tier_conf;
 
-        switch (tier_conf->watermark_last) {
+    switch (tier_conf->watermark_last) {
         case TIER_WM_LOW:
-                migrate = promote ? 1 : 0;
-                break;
+            migrate = promote ? 1 : 0;
+            break;
         case TIER_WM_HI:
-                migrate = promote ? 0 : 1;
-                break;
+            migrate = promote ? 0 : 1;
+            break;
         case TIER_WM_MID:
-                /* coverity[DC.WEAK_CRYPTO] */
-                rand = random() % 100;
-                if (promote) {
-                        migrate = (rand > tier_conf->percent_full);
-                } else {
-                        migrate = (rand <= tier_conf->percent_full);
-                }
-                break;
-        }
+            /* coverity[DC.WEAK_CRYPTO] */
+            rand = random() % 100;
+            if (promote) {
+                migrate = (rand > tier_conf->percent_full);
+            } else {
+                migrate = (rand <= tier_conf->percent_full);
+            }
+            break;
+    }
 
 exit:
-        return migrate;
+    return migrate;
 }
 
 int
-tier_migrate (xlator_t *this, int is_promotion, dict_t *migrate_data,
-              loc_t *loc, gf_tier_conf_t *tier_conf)
+tier_migrate(xlator_t *this, int is_promotion, dict_t *migrate_data, loc_t *loc,
+             gf_tier_conf_t *tier_conf)
 {
-        int ret = -1;
-
-        pthread_mutex_lock (&tier_conf->pause_mutex);
-        if (is_promotion)
-                tier_conf->promote_in_progress = 1;
-        else
-                tier_conf->demote_in_progress = 1;
-        pthread_mutex_unlock (&tier_conf->pause_mutex);
-
-        /* Data migration */
-        ret = syncop_setxattr (this, loc, migrate_data, 0,
-                               NULL, NULL);
-
-        pthread_mutex_lock (&tier_conf->pause_mutex);
-        if (is_promotion)
-                tier_conf->promote_in_progress = 0;
-        else
-                tier_conf->demote_in_progress = 0;
-        pthread_mutex_unlock (&tier_conf->pause_mutex);
-
-        return ret;
+    int ret = -1;
+
+    pthread_mutex_lock(&tier_conf->pause_mutex);
+    if (is_promotion)
+        tier_conf->promote_in_progress = 1;
+    else
+        tier_conf->demote_in_progress = 1;
+    pthread_mutex_unlock(&tier_conf->pause_mutex);
+
+    /* Data migration */
+    ret = syncop_setxattr(this, loc, migrate_data, 0, NULL, NULL);
+
+    pthread_mutex_lock(&tier_conf->pause_mutex);
+    if (is_promotion)
+        tier_conf->promote_in_progress = 0;
+    else
+        tier_conf->demote_in_progress = 0;
+    pthread_mutex_unlock(&tier_conf->pause_mutex);
+
+    return ret;
 }
 
 /* returns  _gf_true: if file can be promoted
  * returns _gf_false: if file cannot be promoted
  */
 static gf_boolean_t
-tier_can_promote_file (xlator_t *this, char const *file_name,
-                       struct iatt *current, gf_defrag_info_t *defrag)
+tier_can_promote_file(xlator_t *this, char const *file_name,
+                      struct iatt *current, gf_defrag_info_t *defrag)
 {
-        gf_boolean_t ret = _gf_false;
-        fsblkcnt_t estimated_usage = 0;
-
-        if (defrag->tier_conf.tier_max_promote_size &&
-            (current->ia_size > defrag->tier_conf.tier_max_promote_size)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "File %s (gfid:%s) with size (%lu) exceeds maxsize "
-                        "(%d) for promotion. File will not be promoted.",
-                        file_name,
-                        uuid_utoa(current->ia_gfid),
-                        current->ia_size,
-                        defrag->tier_conf.tier_max_promote_size);
-                goto err;
-        }
-
-        /* bypass further validations for TEST mode */
-        if (defrag->tier_conf.mode != TIER_MODE_WM) {
-                ret = _gf_true;
-                goto err;
-        }
-
-        /* convert the file size to blocks as per the block size of the
-         * destination tier
-         * NOTE: add (block_size - 1) to get the correct block size when
-         *       there is a remainder after a modulo
-         */
-        estimated_usage = ((current->ia_size + defrag->tier_conf.block_size - 1) /
-                                defrag->tier_conf.block_size) +
-                                defrag->tier_conf.blocks_used;
-
-        /* test if the estimated block usage goes above HI watermark */
-        if (GF_PERCENTAGE (estimated_usage, defrag->tier_conf.blocks_total) >=
-                        defrag->tier_conf.watermark_hi) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Estimated block count consumption on "
-                        "hot tier (%lu) exceeds hi watermark (%d%%). "
-                        "File will not be promoted.",
-                        estimated_usage,
-                        defrag->tier_conf.watermark_hi);
-                goto err;
-        }
+    gf_boolean_t ret = _gf_false;
+    fsblkcnt_t estimated_usage = 0;
+
+    if (defrag->tier_conf.tier_max_promote_size &&
+        (current->ia_size > defrag->tier_conf.tier_max_promote_size)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "File %s (gfid:%s) with size (%lu) exceeds maxsize "
+               "(%d) for promotion. File will not be promoted.",
+               file_name, uuid_utoa(current->ia_gfid), current->ia_size,
+               defrag->tier_conf.tier_max_promote_size);
+        goto err;
+    }
+
+    /* bypass further validations for TEST mode */
+    if (defrag->tier_conf.mode != TIER_MODE_WM) {
         ret = _gf_true;
+        goto err;
+    }
+
+    /* convert the file size to blocks as per the block size of the
+     * destination tier
+     * NOTE: add (block_size - 1) to get the correct block size when
+     *       there is a remainder after a modulo
+     */
+    estimated_usage = ((current->ia_size + defrag->tier_conf.block_size - 1) /
+                       defrag->tier_conf.block_size) +
+                      defrag->tier_conf.blocks_used;
+
+    /* test if the estimated block usage goes above HI watermark */
+    if (GF_PERCENTAGE(estimated_usage, defrag->tier_conf.blocks_total) >=
+        defrag->tier_conf.watermark_hi) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "Estimated block count consumption on "
+               "hot tier (%lu) exceeds hi watermark (%d%%). "
+               "File will not be promoted.",
+               estimated_usage, defrag->tier_conf.watermark_hi);
+        goto err;
+    }
+    ret = _gf_true;
 err:
-        return ret;
+    return ret;
 }
 
 static int
-tier_set_migrate_data (dict_t *migrate_data)
+tier_set_migrate_data(dict_t *migrate_data)
 {
-        int    failed = 1;
-
-
-        failed = dict_set_str (migrate_data, GF_XATTR_FILE_MIGRATE_KEY, "force");
-        if (failed) {
-                goto bail_out;
-        }
-
-        /* Flag to suggest the xattr call is from migrator */
-        failed = dict_set_str (migrate_data, "from.migrator", "yes");
-        if (failed) {
-                goto bail_out;
-        }
-
-        /* Flag to suggest its a tiering migration
-         * The reason for this dic key-value is that
-         * promotions and demotions are multithreaded
-         * so the original frame from gf_defrag_start()
-         * is not carried. A new frame will be created when
-         * we do syncop_setxattr(). This does not have the
-         * frame->root->pid of the original frame. So we pass
-         * this dic key-value when we do syncop_setxattr() to do
-         * data migration and set the frame->root->pid to
-         * GF_CLIENT_PID_TIER_DEFRAG in dht_setxattr() just before
-         * calling dht_start_rebalance_task() */
-        failed = dict_set_str (migrate_data, TIERING_MIGRATION_KEY, "yes");
-        if (failed) {
-                goto bail_out;
-        }
-
-        failed = 0;
+    int failed = 1;
+
+    failed = dict_set_str(migrate_data, GF_XATTR_FILE_MIGRATE_KEY, "force");
+    if (failed) {
+        goto bail_out;
+    }
+
+    /* Flag to suggest the xattr call is from migrator */
+    failed = dict_set_str(migrate_data, "from.migrator", "yes");
+    if (failed) {
+        goto bail_out;
+    }
+
+    /* Flag to suggest its a tiering migration
+     * The reason for this dic key-value is that
+     * promotions and demotions are multithreaded
+     * so the original frame from gf_defrag_start()
+     * is not carried. A new frame will be created when
+     * we do syncop_setxattr(). This does not have the
+     * frame->root->pid of the original frame. So we pass
+     * this dic key-value when we do syncop_setxattr() to do
+     * data migration and set the frame->root->pid to
+     * GF_CLIENT_PID_TIER_DEFRAG in dht_setxattr() just before
+     * calling dht_start_rebalance_task() */
+    failed = dict_set_str(migrate_data, TIERING_MIGRATION_KEY, "yes");
+    if (failed) {
+        goto bail_out;
+    }
+
+    failed = 0;
 
 bail_out:
-        return failed;
+    return failed;
 }
 
 static char *
-tier_get_parent_path (xlator_t          *this,
-                      loc_t             *p_loc,
-                      struct iatt       *par_stbuf,
-                      int               *per_link_status)
+tier_get_parent_path(xlator_t *this, loc_t *p_loc, struct iatt *par_stbuf,
+                     int *per_link_status)
 {
-        int     ret             = -1;
-        char    *parent_path    = NULL;
-        dict_t  *xdata_request  = NULL;
-        dict_t  *xdata_response = NULL;
-
-
-        xdata_request = dict_new ();
-        if (!xdata_request) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to create xdata_request dict");
-                goto err;
-        }
-        ret = dict_set_int32 (xdata_request,
-                              GET_ANCESTRY_PATH_KEY, 42);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to set value to dict : key %s \n",
-                        GET_ANCESTRY_PATH_KEY);
-                goto err;
-        }
-
-        ret = syncop_lookup (this, p_loc, par_stbuf, NULL,
-                             xdata_request, &xdata_response);
-        /* When the parent gfid is a stale entry, the lookup
-         * will fail and stop the demotion process.
-         * The parent gfid can be stale when a huge folder is
-         * deleted while the files within it are being migrated
-         */
-        if (ret == -ESTALE) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_STALE_LOOKUP,
-                        "Stale entry in parent lookup for %s",
-                        uuid_utoa (p_loc->gfid));
-                *per_link_status = 1;
-                goto err;
-        } else if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Error in parent lookup for %s",
-                        uuid_utoa (p_loc->gfid));
-                *per_link_status = -1;
-                goto err;
-        }
-        ret = dict_get_str (xdata_response, GET_ANCESTRY_PATH_KEY, &parent_path);
-        if (ret || !parent_path) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to get parent path for %s",
-                        uuid_utoa (p_loc->gfid));
-                *per_link_status = -1;
-                goto err;
-        }
+    int ret = -1;
+    char *parent_path = NULL;
+    dict_t *xdata_request = NULL;
+    dict_t *xdata_response = NULL;
+
+    xdata_request = dict_new();
+    if (!xdata_request) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to create xdata_request dict");
+        goto err;
+    }
+    ret = dict_set_int32(xdata_request, GET_ANCESTRY_PATH_KEY, 42);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to set value to dict : key %s \n",
+               GET_ANCESTRY_PATH_KEY);
+        goto err;
+    }
+
+    ret = syncop_lookup(this, p_loc, par_stbuf, NULL, xdata_request,
+                        &xdata_response);
+    /* When the parent gfid is a stale entry, the lookup
+     * will fail and stop the demotion process.
+     * The parent gfid can be stale when a huge folder is
+     * deleted while the files within it are being migrated
+     */
+    if (ret == -ESTALE) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_STALE_LOOKUP,
+               "Stale entry in parent lookup for %s", uuid_utoa(p_loc->gfid));
+        *per_link_status = 1;
+        goto err;
+    } else if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_LOG_TIER_ERROR,
+               "Error in parent lookup for %s", uuid_utoa(p_loc->gfid));
+        *per_link_status = -1;
+        goto err;
+    }
+    ret = dict_get_str(xdata_response, GET_ANCESTRY_PATH_KEY, &parent_path);
+    if (ret || !parent_path) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to get parent path for %s", uuid_utoa(p_loc->gfid));
+        *per_link_status = -1;
+        goto err;
+    }
 
 err:
-        if (xdata_request) {
-                dict_unref (xdata_request);
-        }
+    if (xdata_request) {
+        dict_unref(xdata_request);
+    }
 
-        if (xdata_response) {
-                dict_unref (xdata_response);
-                xdata_response = NULL;
-        }
+    if (xdata_response) {
+        dict_unref(xdata_response);
+        xdata_response = NULL;
+    }
 
-        return parent_path;
+    return parent_path;
 }
 
 static int
-tier_get_file_name_and_path (xlator_t                   *this,
-                             uuid_t                     gfid,
-                             gfdb_link_info_t           *link_info,
-                             char const                 *parent_path,
-                             loc_t                      *loc,
-                             int                        *per_link_status)
+tier_get_file_name_and_path(xlator_t *this, uuid_t gfid,
+                            gfdb_link_info_t *link_info,
+                            char const *parent_path, loc_t *loc,
+                            int *per_link_status)
 {
-        int             ret     = -1;
-
-        loc->name = gf_strdup (link_info->file_name);
-        if (!loc->name) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR, "Memory "
-                        "allocation failed for %s",
-                        uuid_utoa (gfid));
-                *per_link_status = -1;
-                goto err;
-        }
-        ret = gf_asprintf((char **)&(loc->path), "%s/%s", parent_path, loc->name);
-        if (ret < 0) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed to "
-                        "construct file path for %s %s\n",
-                        parent_path, loc->name);
-                *per_link_status = -1;
-                goto err;
-        }
-
-        ret = 0;
+    int ret = -1;
+
+    loc->name = gf_strdup(link_info->file_name);
+    if (!loc->name) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Memory "
+               "allocation failed for %s",
+               uuid_utoa(gfid));
+        *per_link_status = -1;
+        goto err;
+    }
+    ret = gf_asprintf((char **)&(loc->path), "%s/%s", parent_path, loc->name);
+    if (ret < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to "
+               "construct file path for %s %s\n",
+               parent_path, loc->name);
+        *per_link_status = -1;
+        goto err;
+    }
+
+    ret = 0;
 
 err:
-        return ret;
+    return ret;
 }
 
 static int
-tier_lookup_file (xlator_t    *this,
-                  loc_t       *p_loc,
-                  loc_t       *loc,
-                  struct iatt *current,
-                  int         *per_link_status)
+tier_lookup_file(xlator_t *this, loc_t *p_loc, loc_t *loc, struct iatt *current,
+                 int *per_link_status)
 {
-        int     ret = -1;
-
-        ret = syncop_lookup (this, loc, current, NULL, NULL, NULL);
-
-        /* The file may be deleted even when the parent
-         * is available and the lookup will
-         * return a stale entry which would stop the
-         * migration. so if its a stale entry, then skip
-         * the file and keep migrating.
-         */
-        if (ret == -ESTALE) {
-                gf_msg (this->name, GF_LOG_WARNING, -ret,
-                        DHT_MSG_STALE_LOOKUP,
-                        "Stale lookup for %s",
-                        uuid_utoa (p_loc->gfid));
-                *per_link_status = 1;
-                goto err;
-        } else if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed to "
-                        "lookup file %s\n", loc->name);
-                *per_link_status = -1;
-                goto err;
-        }
-        ret = 0;
+    int ret = -1;
+
+    ret = syncop_lookup(this, loc, current, NULL, NULL, NULL);
+
+    /* The file may be deleted even when the parent
+     * is available and the lookup will
+     * return a stale entry which would stop the
+     * migration. so if its a stale entry, then skip
+     * the file and keep migrating.
+     */
+    if (ret == -ESTALE) {
+        gf_msg(this->name, GF_LOG_WARNING, -ret, DHT_MSG_STALE_LOOKUP,
+               "Stale lookup for %s", uuid_utoa(p_loc->gfid));
+        *per_link_status = 1;
+        goto err;
+    } else if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to "
+               "lookup file %s\n",
+               loc->name);
+        *per_link_status = -1;
+        goto err;
+    }
+    ret = 0;
 
 err:
-        return ret;
+    return ret;
 }
 
 static gf_boolean_t
-tier_is_file_already_at_destination (xlator_t           *src_subvol,
-                                     query_cbk_args_t   *query_cbk_args,
-                                     dht_conf_t         *conf,
-                                     int                *per_link_status)
+tier_is_file_already_at_destination(xlator_t *src_subvol,
+                                    query_cbk_args_t *query_cbk_args,
+                                    dht_conf_t *conf, int *per_link_status)
 {
-        gf_boolean_t    at_destination = _gf_true;
-
-        if (src_subvol == NULL) {
-                *per_link_status = 1;
-                goto err;
-        }
-        if (query_cbk_args->is_promotion &&
-            src_subvol == conf->subvolumes[1]) {
-                *per_link_status = 1;
-                goto err;
-        }
-
-        if (!query_cbk_args->is_promotion &&
-            src_subvol == conf->subvolumes[0]) {
-                *per_link_status = 1;
-                goto err;
-        }
-        at_destination = _gf_false;
+    gf_boolean_t at_destination = _gf_true;
+
+    if (src_subvol == NULL) {
+        *per_link_status = 1;
+        goto err;
+    }
+    if (query_cbk_args->is_promotion && src_subvol == conf->subvolumes[1]) {
+        *per_link_status = 1;
+        goto err;
+    }
+
+    if (!query_cbk_args->is_promotion && src_subvol == conf->subvolumes[0]) {
+        *per_link_status = 1;
+        goto err;
+    }
+    at_destination = _gf_false;
 
 err:
-        return at_destination;
+    return at_destination;
 }
 
 static void
-tier_update_migration_counters (query_cbk_args_t        *query_cbk_args,
-                                gf_defrag_info_t        *defrag,
-                                uint64_t                *total_migrated_bytes,
-                                int                     *total_files)
+tier_update_migration_counters(query_cbk_args_t *query_cbk_args,
+                               gf_defrag_info_t *defrag,
+                               uint64_t *total_migrated_bytes, int *total_files)
 {
-        if (query_cbk_args->is_promotion) {
-                defrag->total_files_promoted++;
-                *total_migrated_bytes +=
-                        defrag->tier_conf.st_last_promoted_size;
-                pthread_mutex_lock (&dm_stat_mutex);
-                defrag->tier_conf.blocks_used +=
-                        defrag->tier_conf.st_last_promoted_size;
-                pthread_mutex_unlock (&dm_stat_mutex);
-        } else {
-                defrag->total_files_demoted++;
-                *total_migrated_bytes +=
-                        defrag->tier_conf.st_last_demoted_size;
-                pthread_mutex_lock (&dm_stat_mutex);
-                defrag->tier_conf.blocks_used -=
-                        defrag->tier_conf.st_last_demoted_size;
-                pthread_mutex_unlock (&dm_stat_mutex);
-        }
-        if (defrag->tier_conf.blocks_total) {
-                pthread_mutex_lock (&dm_stat_mutex);
-                defrag->tier_conf.percent_full =
-                        GF_PERCENTAGE (defrag->tier_conf.blocks_used,
-                                        defrag->tier_conf.blocks_total);
-                pthread_mutex_unlock (&dm_stat_mutex);
-        }
-
-        (*total_files)++;
+    if (query_cbk_args->is_promotion) {
+        defrag->total_files_promoted++;
+        *total_migrated_bytes += defrag->tier_conf.st_last_promoted_size;
+        pthread_mutex_lock(&dm_stat_mutex);
+        defrag->tier_conf.blocks_used += defrag->tier_conf
+                                             .st_last_promoted_size;
+        pthread_mutex_unlock(&dm_stat_mutex);
+    } else {
+        defrag->total_files_demoted++;
+        *total_migrated_bytes += defrag->tier_conf.st_last_demoted_size;
+        pthread_mutex_lock(&dm_stat_mutex);
+        defrag->tier_conf.blocks_used -= defrag->tier_conf.st_last_demoted_size;
+        pthread_mutex_unlock(&dm_stat_mutex);
+    }
+    if (defrag->tier_conf.blocks_total) {
+        pthread_mutex_lock(&dm_stat_mutex);
+        defrag->tier_conf.percent_full = GF_PERCENTAGE(
+            defrag->tier_conf.blocks_used, defrag->tier_conf.blocks_total);
+        pthread_mutex_unlock(&dm_stat_mutex);
+    }
+
+    (*total_files)++;
 }
 
 static int
-tier_migrate_link (xlator_t            *this,
-                   dht_conf_t          *conf,
-                   uuid_t              gfid,
-                   gfdb_link_info_t    *link_info,
-                   gf_defrag_info_t    *defrag,
-                   query_cbk_args_t    *query_cbk_args,
-                   dict_t              *migrate_data,
-                   int                 *per_link_status,
-                   int                 *total_files,
-                   uint64_t            *total_migrated_bytes)
+tier_migrate_link(xlator_t *this, dht_conf_t *conf, uuid_t gfid,
+                  gfdb_link_info_t *link_info, gf_defrag_info_t *defrag,
+                  query_cbk_args_t *query_cbk_args, dict_t *migrate_data,
+                  int *per_link_status, int *total_files,
+                  uint64_t *total_migrated_bytes)
 {
-        int             ret             = -1;
-        struct iatt     current         = {0,};
-        struct iatt     par_stbuf       = {0,};
-        loc_t           p_loc           = {0,};
-        loc_t           loc             = {0,};
-        xlator_t        *src_subvol     = NULL;
-        inode_t         *linked_inode   = NULL;
-        char            *parent_path    = NULL;
-
-
-        /* Lookup for parent and get the path of parent */
-        gf_uuid_copy (p_loc.gfid, link_info->pargfid);
-        p_loc.inode = inode_new (defrag->root_inode->table);
-        if (!p_loc.inode) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to create reference to inode"
-                        " for %s", uuid_utoa (p_loc.gfid));
-
-                *per_link_status = -1;
-                goto err;
-        }
-
-        parent_path = tier_get_parent_path (this, &p_loc, &par_stbuf,
-                                            per_link_status);
-        if (!parent_path) {
-                goto err;
-        }
-
-        linked_inode = inode_link (p_loc.inode, NULL, NULL, &par_stbuf);
-        inode_unref (p_loc.inode);
-        p_loc.inode = linked_inode;
-
-
-        /* Preparing File Inode */
-        gf_uuid_copy (loc.gfid, gfid);
-        loc.inode = inode_new (defrag->root_inode->table);
-        gf_uuid_copy (loc.pargfid, link_info->pargfid);
-        loc.parent = inode_ref (p_loc.inode);
-
-        /* Get filename and Construct file path */
-        if (tier_get_file_name_and_path (this, gfid, link_info,
-                                         parent_path, &loc, per_link_status) != 0) {
-                goto err;
-        }
-        gf_uuid_copy (loc.parent->gfid, link_info->pargfid);
-
-        /* lookup file inode */
-        if (tier_lookup_file (this, &p_loc, &loc,
-                              &current, per_link_status) != 0) {
-                goto err;
-        }
-
-        if (query_cbk_args->is_promotion) {
-                if (!tier_can_promote_file (this,
-                                            link_info->file_name,
-                                            &current,
-                                            defrag)) {
-                        *per_link_status = 1;
-                        goto err;
-                }
-        }
-
-        linked_inode = inode_link (loc.inode, NULL, NULL, &current);
-        inode_unref (loc.inode);
-        loc.inode = linked_inode;
-
-
-        /*
-         * Do not promote/demote if file already is where it
-         * should be. It means another brick moved the file
-         * so is not an error. So we set per_link_status = 1
-         * so that we ignore counting this.
-         */
-        src_subvol = dht_subvol_get_cached (this, loc.inode);
-
-        if (tier_is_file_already_at_destination (src_subvol, query_cbk_args,
-                                                 conf, per_link_status)) {
-                goto err;
-        }
-
-        gf_msg_debug (this->name, 0, "Tier %s: src_subvol %s file %s",
-                      (query_cbk_args->is_promotion ?  "promote" : "demote"),
-                      src_subvol->name,
-                      loc.path);
-
-
-        ret = tier_check_same_node (this, &loc, defrag);
-        if (ret != 0) {
-                if (ret < 0) {
-                        *per_link_status = -1;
-                        goto err;
-                }
-                ret = 0;
-                /* By setting per_link_status to 1 we are
-                 * ignoring this status and will not be counting
-                 * this file for migration */
-                *per_link_status = 1;
-                goto err;
-        }
-
-        gf_uuid_copy (loc.gfid, loc.inode->gfid);
-
-        if (gf_defrag_get_pause_state (&defrag->tier_conf) != TIER_RUNNING) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Tiering paused. "
-                        "Exiting tier_migrate_link");
-                goto err;
-        }
-
-        ret = tier_migrate (this, query_cbk_args->is_promotion,
-                            migrate_data, &loc, &defrag->tier_conf);
-
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, -ret,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed to "
-                        "migrate %s ", loc.path);
-                *per_link_status = -1;
-                goto err;
+    int ret = -1;
+    struct iatt current = {
+        0,
+    };
+    struct iatt par_stbuf = {
+        0,
+    };
+    loc_t p_loc = {
+        0,
+    };
+    loc_t loc = {
+        0,
+    };
+    xlator_t *src_subvol = NULL;
+    inode_t *linked_inode = NULL;
+    char *parent_path = NULL;
+
+    /* Lookup for parent and get the path of parent */
+    gf_uuid_copy(p_loc.gfid, link_info->pargfid);
+    p_loc.inode = inode_new(defrag->root_inode->table);
+    if (!p_loc.inode) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to create reference to inode"
+               " for %s",
+               uuid_utoa(p_loc.gfid));
+
+        *per_link_status = -1;
+        goto err;
+    }
+
+    parent_path = tier_get_parent_path(this, &p_loc, &par_stbuf,
+                                       per_link_status);
+    if (!parent_path) {
+        goto err;
+    }
+
+    linked_inode = inode_link(p_loc.inode, NULL, NULL, &par_stbuf);
+    inode_unref(p_loc.inode);
+    p_loc.inode = linked_inode;
+
+    /* Preparing File Inode */
+    gf_uuid_copy(loc.gfid, gfid);
+    loc.inode = inode_new(defrag->root_inode->table);
+    gf_uuid_copy(loc.pargfid, link_info->pargfid);
+    loc.parent = inode_ref(p_loc.inode);
+
+    /* Get filename and Construct file path */
+    if (tier_get_file_name_and_path(this, gfid, link_info, parent_path, &loc,
+                                    per_link_status) != 0) {
+        goto err;
+    }
+    gf_uuid_copy(loc.parent->gfid, link_info->pargfid);
+
+    /* lookup file inode */
+    if (tier_lookup_file(this, &p_loc, &loc, &current, per_link_status) != 0) {
+        goto err;
+    }
+
+    if (query_cbk_args->is_promotion) {
+        if (!tier_can_promote_file(this, link_info->file_name, &current,
+                                   defrag)) {
+            *per_link_status = 1;
+            goto err;
+        }
+    }
+
+    linked_inode = inode_link(loc.inode, NULL, NULL, &current);
+    inode_unref(loc.inode);
+    loc.inode = linked_inode;
+
+    /*
+     * Do not promote/demote if file already is where it
+     * should be. It means another brick moved the file
+     * so is not an error. So we set per_link_status = 1
+     * so that we ignore counting this.
+     */
+    src_subvol = dht_subvol_get_cached(this, loc.inode);
+
+    if (tier_is_file_already_at_destination(src_subvol, query_cbk_args, conf,
+                                            per_link_status)) {
+        goto err;
+    }
+
+    gf_msg_debug(this->name, 0, "Tier %s: src_subvol %s file %s",
+                 (query_cbk_args->is_promotion ? "promote" : "demote"),
+                 src_subvol->name, loc.path);
+
+    ret = tier_check_same_node(this, &loc, defrag);
+    if (ret != 0) {
+        if (ret < 0) {
+            *per_link_status = -1;
+            goto err;
         }
-
-        tier_update_migration_counters (query_cbk_args, defrag,
-                                        total_migrated_bytes, total_files);
-
         ret = 0;
+        /* By setting per_link_status to 1 we are
+         * ignoring this status and will not be counting
+         * this file for migration */
+        *per_link_status = 1;
+        goto err;
+    }
+
+    gf_uuid_copy(loc.gfid, loc.inode->gfid);
+
+    if (gf_defrag_get_pause_state(&defrag->tier_conf) != TIER_RUNNING) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "Tiering paused. "
+               "Exiting tier_migrate_link");
+        goto err;
+    }
+
+    ret = tier_migrate(this, query_cbk_args->is_promotion, migrate_data, &loc,
+                       &defrag->tier_conf);
+
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, -ret, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to "
+               "migrate %s ",
+               loc.path);
+        *per_link_status = -1;
+        goto err;
+    }
+
+    tier_update_migration_counters(query_cbk_args, defrag, total_migrated_bytes,
+                                   total_files);
+
+    ret = 0;
 
 err:
-        GF_FREE ((char *) loc.name);
-        loc.name = NULL;
-        loc_wipe (&loc);
-        loc_wipe (&p_loc);
-
-        if ((*total_files >= defrag->tier_conf.max_migrate_files)
-            || (*total_migrated_bytes > defrag->tier_conf.max_migrate_bytes)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Reached cycle migration limit."
-                        "migrated bytes %"PRId64" files %d",
-                        *total_migrated_bytes,
-                        *total_files);
-                ret = -1;
-        }
-
-        return ret;
+    GF_FREE((char *)loc.name);
+    loc.name = NULL;
+    loc_wipe(&loc);
+    loc_wipe(&p_loc);
+
+    if ((*total_files >= defrag->tier_conf.max_migrate_files) ||
+        (*total_migrated_bytes > defrag->tier_conf.max_migrate_bytes)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "Reached cycle migration limit."
+               "migrated bytes %" PRId64 " files %d",
+               *total_migrated_bytes, *total_files);
+        ret = -1;
+    }
+
+    return ret;
 }
 
-
 static int
-tier_migrate_using_query_file (void *_args)
+tier_migrate_using_query_file(void *_args)
 {
-        int ret                                 = -1;
-        query_cbk_args_t *query_cbk_args        = (query_cbk_args_t *) _args;
-        xlator_t *this                          = NULL;
-        gf_defrag_info_t *defrag                = NULL;
-        gfdb_query_record_t *query_record       = NULL;
-        gfdb_link_info_t *link_info             = NULL;
-        dict_t *migrate_data                    = NULL;
-        /*
-         * per_file_status and per_link_status
-         *  0  : success
-         * -1 : failure
-         *  1  : ignore the status and don't count for migration
-         * */
-        int per_file_status                     = 0;
-        int per_link_status                     = 0;
-        int total_status                        = 0;
-        dht_conf_t   *conf                      = NULL;
-        uint64_t total_migrated_bytes           = 0;
-        int total_files                         = 0;
-        loc_t root_loc                          = { 0 };
-        gfdb_time_t  start_time                 = { 0 };
-        gfdb_time_t  current_time               = { 0 };
-        int total_time                          = 0;
-        int max_time                            = 0;
-        gf_boolean_t emergency_demote_mode      = _gf_false;
-
-
-        GF_VALIDATE_OR_GOTO ("tier", query_cbk_args, out);
-        GF_VALIDATE_OR_GOTO ("tier", query_cbk_args->this, out);
-        this = query_cbk_args->this;
-        GF_VALIDATE_OR_GOTO (this->name, query_cbk_args->defrag, out);
-        GF_VALIDATE_OR_GOTO (this->name, query_cbk_args->qfile_array, out);
-        GF_VALIDATE_OR_GOTO (this->name, this->private, out);
-
-        conf = this->private;
-
-        defrag = query_cbk_args->defrag;
-        migrate_data = dict_new ();
-        if (!migrate_data)
-                goto out;
-
-        emergency_demote_mode = (!query_cbk_args->is_promotion &&
-                                 is_hot_tier_full(&defrag->tier_conf));
-
-        if (tier_set_migrate_data (migrate_data) != 0) {
-                goto out;
+    int ret = -1;
+    query_cbk_args_t *query_cbk_args = (query_cbk_args_t *)_args;
+    xlator_t *this = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    gfdb_query_record_t *query_record = NULL;
+    gfdb_link_info_t *link_info = NULL;
+    dict_t *migrate_data = NULL;
+    /*
+     * per_file_status and per_link_status
+     *  0  : success
+     * -1 : failure
+     *  1  : ignore the status and don't count for migration
+     * */
+    int per_file_status = 0;
+    int per_link_status = 0;
+    int total_status = 0;
+    dht_conf_t *conf = NULL;
+    uint64_t total_migrated_bytes = 0;
+    int total_files = 0;
+    loc_t root_loc = {0};
+    gfdb_time_t start_time = {0};
+    gfdb_time_t current_time = {0};
+    int total_time = 0;
+    int max_time = 0;
+    gf_boolean_t emergency_demote_mode = _gf_false;
+
+    GF_VALIDATE_OR_GOTO("tier", query_cbk_args, out);
+    GF_VALIDATE_OR_GOTO("tier", query_cbk_args->this, out);
+    this = query_cbk_args->this;
+    GF_VALIDATE_OR_GOTO(this->name, query_cbk_args->defrag, out);
+    GF_VALIDATE_OR_GOTO(this->name, query_cbk_args->qfile_array, out);
+    GF_VALIDATE_OR_GOTO(this->name, this->private, out);
+
+    conf = this->private;
+
+    defrag = query_cbk_args->defrag;
+    migrate_data = dict_new();
+    if (!migrate_data)
+        goto out;
+
+    emergency_demote_mode = (!query_cbk_args->is_promotion &&
+                             is_hot_tier_full(&defrag->tier_conf));
+
+    if (tier_set_migrate_data(migrate_data) != 0) {
+        goto out;
+    }
+
+    dht_build_root_loc(defrag->root_inode, &root_loc);
+
+    ret = gettimeofday(&start_time, NULL);
+    if (query_cbk_args->is_promotion) {
+        max_time = defrag->tier_conf.tier_promote_frequency;
+    } else {
+        max_time = defrag->tier_conf.tier_demote_frequency;
+    }
+
+    /* Per file */
+    while ((ret = read_query_record_list(query_cbk_args->qfile_array,
+                                         &query_record)) != 0) {
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "Failed to fetch query record "
+                   "from query file");
+            goto out;
         }
 
-        dht_build_root_loc (defrag->root_inode, &root_loc);
-
-        ret = gettimeofday (&start_time, NULL);
-        if (query_cbk_args->is_promotion) {
-                max_time = defrag->tier_conf.tier_promote_frequency;
-        } else {
-                max_time = defrag->tier_conf.tier_demote_frequency;
+        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
+            ret = -1;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "Exiting tier migration as"
+                   "defrag status is not started");
+            goto out;
         }
 
-        /* Per file */
-        while ((ret = read_query_record_list (query_cbk_args->qfile_array,
-              &query_record)) != 0) {
-
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR,
-                                "Failed to fetch query record "
-                                "from query file");
-                        goto out;
-                }
-
-                if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
-                        ret = -1;
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR,
-                                "Exiting tier migration as"
-                                "defrag status is not started");
-                        goto out;
-                }
-
-                ret = gettimeofday (&current_time, NULL);
-                if (ret < 0) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR,
-                                "Could not get current time.");
-                        goto out;
-                }
+        ret = gettimeofday(&current_time, NULL);
+        if (ret < 0) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "Could not get current time.");
+            goto out;
+        }
 
-                total_time = current_time.tv_sec - start_time.tv_sec;
-                if (total_time > max_time) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_LOG_TIER_STATUS,
-                                "Max cycle time reached. Exiting migration.");
-                        goto out;
-                }
+        total_time = current_time.tv_sec - start_time.tv_sec;
+        if (total_time > max_time) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+                   "Max cycle time reached. Exiting migration.");
+            goto out;
+        }
 
-                per_file_status      = 0;
-                per_link_status      = 0;
+        per_file_status = 0;
+        per_link_status = 0;
 
-                if (gf_defrag_get_pause_state (&defrag->tier_conf)
-                    != TIER_RUNNING) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_LOG_TIER_STATUS,
-                                "Tiering paused. "
-                                "Exiting tier_migrate_using_query_file");
-                        break;
-                }
+        if (gf_defrag_get_pause_state(&defrag->tier_conf) != TIER_RUNNING) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+                   "Tiering paused. "
+                   "Exiting tier_migrate_using_query_file");
+            break;
+        }
 
-                if (defrag->tier_conf.mode == TIER_MODE_WM) {
-                        ret = tier_get_fs_stat (this, &root_loc);
-                        if (ret != 0) {
-                                gfdb_methods.gfdb_query_record_free (query_record);
-                                query_record = NULL;
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_LOG_TIER_STATUS,
-                                        "tier_get_fs_stat() FAILED ... "
-                                        "skipping file migrations until next cycle");
-                                break;
-                        }
-
-                        if (!tier_do_migration (this, query_cbk_args->is_promotion)) {
-                                gfdb_methods.gfdb_query_record_free (query_record);
-                                query_record = NULL;
-
-                                /* We have crossed the high watermark. Stop processing
-                                 * files if this is a promotion cycle so demotion gets
-                                 * a chance to start if not already running*/
-
-                                if (query_cbk_args->is_promotion &&
-                                    is_hot_tier_full (&defrag->tier_conf)) {
-
-                                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                                DHT_MSG_LOG_TIER_STATUS,
-                                                "High watermark crossed during "
-                                                "promotion. Exiting "
-                                                "tier_migrate_using_query_file");
-                                        break;
-                                }
-                                continue;
-                        }
-                }
+        if (defrag->tier_conf.mode == TIER_MODE_WM) {
+            ret = tier_get_fs_stat(this, &root_loc);
+            if (ret != 0) {
+                gfdb_methods.gfdb_query_record_free(query_record);
+                query_record = NULL;
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_STATUS,
+                       "tier_get_fs_stat() FAILED ... "
+                       "skipping file migrations until next cycle");
+                break;
+            }
 
-                per_link_status = 0;
+            if (!tier_do_migration(this, query_cbk_args->is_promotion)) {
+                gfdb_methods.gfdb_query_record_free(query_record);
+                query_record = NULL;
 
-                /* For now we only support single link migration. And we will
-                 * ignore other hard links in the link info list of query record
-                 * TODO: Multiple hard links migration */
-                if (!list_empty (&query_record->link_list)) {
-                        link_info = list_first_entry (&query_record->link_list,
-                                                      gfdb_link_info_t, list);
+                /* We have crossed the high watermark. Stop processing
+                 * files if this is a promotion cycle so demotion gets
+                 * a chance to start if not already running*/
+
+                if (query_cbk_args->is_promotion &&
+                    is_hot_tier_full(&defrag->tier_conf)) {
+                    gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+                           "High watermark crossed during "
+                           "promotion. Exiting "
+                           "tier_migrate_using_query_file");
+                    break;
                 }
-                if (link_info != NULL) {
-                        if (tier_migrate_link (this,
-                                               conf,
-                                               query_record->gfid,
-                                               link_info,
-                                               defrag,
-                                               query_cbk_args,
-                                               migrate_data,
-                                               &per_link_status,
-                                               &total_files,
-                                               &total_migrated_bytes) != 0) {
-                                gf_msg (this->name, GF_LOG_INFO, 0,
-                                        DHT_MSG_LOG_TIER_STATUS,
-                                        "%s failed for %s(gfid:%s)",
-                                        (query_cbk_args->is_promotion ?
-                                         "Promotion" : "Demotion"),
-                                        link_info->file_name,
-                                        uuid_utoa (query_record->gfid));
-                        }
-                }
-                per_file_status = per_link_status;
-
-                if (per_file_status < 0) {/* Failure */
-                        pthread_mutex_lock (&dm_stat_mutex);
-                        defrag->total_failures++;
-                        pthread_mutex_unlock (&dm_stat_mutex);
-                } else if (per_file_status == 0) {/* Success */
-                        pthread_mutex_lock (&dm_stat_mutex);
-                        defrag->total_files++;
-                        pthread_mutex_unlock (&dm_stat_mutex);
-                } else if (per_file_status == 1) {/* Ignore */
-                        per_file_status = 0;
-                        /* Since this attempt was ignored we
-                         * decrement the lookup count*/
-                        pthread_mutex_lock (&dm_stat_mutex);
-                        defrag->num_files_lookedup--;
-                        pthread_mutex_unlock (&dm_stat_mutex);
-                }
-                total_status = total_status + per_file_status;
-                per_link_status = 0;
-                per_file_status = 0;
-
-                gfdb_methods.gfdb_query_record_free (query_record);
-                query_record = NULL;
+                continue;
+            }
+        }
+
+        per_link_status = 0;
+
+        /* For now we only support single link migration. And we will
+         * ignore other hard links in the link info list of query record
+         * TODO: Multiple hard links migration */
+        if (!list_empty(&query_record->link_list)) {
+            link_info = list_first_entry(&query_record->link_list,
+                                         gfdb_link_info_t, list);
+        }
+        if (link_info != NULL) {
+            if (tier_migrate_link(this, conf, query_record->gfid, link_info,
+                                  defrag, query_cbk_args, migrate_data,
+                                  &per_link_status, &total_files,
+                                  &total_migrated_bytes) != 0) {
+                gf_msg(
+                    this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+                    "%s failed for %s(gfid:%s)",
+                    (query_cbk_args->is_promotion ? "Promotion" : "Demotion"),
+                    link_info->file_name, uuid_utoa(query_record->gfid));
+            }
+        }
+        per_file_status = per_link_status;
+
+        if (per_file_status < 0) { /* Failure */
+            pthread_mutex_lock(&dm_stat_mutex);
+            defrag->total_failures++;
+            pthread_mutex_unlock(&dm_stat_mutex);
+        } else if (per_file_status == 0) { /* Success */
+            pthread_mutex_lock(&dm_stat_mutex);
+            defrag->total_files++;
+            pthread_mutex_unlock(&dm_stat_mutex);
+        } else if (per_file_status == 1) { /* Ignore */
+            per_file_status = 0;
+            /* Since this attempt was ignored we
+             * decrement the lookup count*/
+            pthread_mutex_lock(&dm_stat_mutex);
+            defrag->num_files_lookedup--;
+            pthread_mutex_unlock(&dm_stat_mutex);
+        }
+        total_status = total_status + per_file_status;
+        per_link_status = 0;
+        per_file_status = 0;
+
+        gfdb_methods.gfdb_query_record_free(query_record);
+        query_record = NULL;
 
-                /* If we are demoting and the entry watermark was HI, then
-                 * we are done with emergency demotions if the current
-                 * watermark has fallen below hi-watermark level
-                 */
-                if (emergency_demote_mode) {
-                        if (tier_check_watermark (this) == 0) {
-                                if (!is_hot_tier_full (&defrag->tier_conf)) {
-                                        break;
-                                }
-                        }
+        /* If we are demoting and the entry watermark was HI, then
+         * we are done with emergency demotions if the current
+         * watermark has fallen below hi-watermark level
+         */
+        if (emergency_demote_mode) {
+            if (tier_check_watermark(this) == 0) {
+                if (!is_hot_tier_full(&defrag->tier_conf)) {
+                    break;
                 }
+            }
         }
+    }
 
 out:
-        if (migrate_data)
-                dict_unref (migrate_data);
+    if (migrate_data)
+        dict_unref(migrate_data);
 
-        gfdb_methods.gfdb_query_record_free (query_record);
-        query_record = NULL;
+    gfdb_methods.gfdb_query_record_free(query_record);
+    query_record = NULL;
 
-        return total_status;
+    return total_status;
 }
 
-
 /* This is the call back function per record/file from data base */
 static int
-tier_gf_query_callback (gfdb_query_record_t *gfdb_query_record,
-                        void *_args) {
-        int ret = -1;
-        query_cbk_args_t *query_cbk_args = _args;
-
-        GF_VALIDATE_OR_GOTO ("tier", query_cbk_args, out);
-        GF_VALIDATE_OR_GOTO ("tier", query_cbk_args->defrag, out);
-        GF_VALIDATE_OR_GOTO ("tier", (query_cbk_args->query_fd > 0), out);
-
-        ret = gfdb_methods.gfdb_write_query_record (query_cbk_args->query_fd,
-                                                        gfdb_query_record);
-        if (ret) {
-                gf_msg ("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
-                        "Failed writing query record to query file");
-                goto out;
-        }
-
-        pthread_mutex_lock (&dm_stat_mutex);
-        query_cbk_args->defrag->num_files_lookedup++;
-        pthread_mutex_unlock (&dm_stat_mutex);
-
-        ret = 0;
+tier_gf_query_callback(gfdb_query_record_t *gfdb_query_record, void *_args)
+{
+    int ret = -1;
+    query_cbk_args_t *query_cbk_args = _args;
+
+    GF_VALIDATE_OR_GOTO("tier", query_cbk_args, out);
+    GF_VALIDATE_OR_GOTO("tier", query_cbk_args->defrag, out);
+    GF_VALIDATE_OR_GOTO("tier", (query_cbk_args->query_fd > 0), out);
+
+    ret = gfdb_methods.gfdb_write_query_record(query_cbk_args->query_fd,
+                                               gfdb_query_record);
+    if (ret) {
+        gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed writing query record to query file");
+        goto out;
+    }
+
+    pthread_mutex_lock(&dm_stat_mutex);
+    query_cbk_args->defrag->num_files_lookedup++;
+    pthread_mutex_unlock(&dm_stat_mutex);
+
+    ret = 0;
 out:
-        return ret;
+    return ret;
 }
 
-
-
-
 /* Create query file in tier process */
 static int
-tier_process_self_query (tier_brick_list_t *local_brick, void *args)
+tier_process_self_query(tier_brick_list_t *local_brick, void *args)
 {
-        int ret                                         = -1;
-        char *db_path                                   = NULL;
-        query_cbk_args_t *query_cbk_args                = NULL;
-        xlator_t *this                                  = NULL;
-        gfdb_conn_node_t *conn_node                     = NULL;
-        dict_t *params_dict                             = NULL;
-        dict_t *ctr_ipc_dict                            = NULL;
-        gfdb_brick_info_t *gfdb_brick_info              = args;
-
-        /*Init of all the essentials*/
-        GF_VALIDATE_OR_GOTO ("tier", gfdb_brick_info , out);
-        query_cbk_args = gfdb_brick_info->_query_cbk_args;
-
-        GF_VALIDATE_OR_GOTO ("tier", query_cbk_args->this, out);
-        this = query_cbk_args->this;
-
-        GF_VALIDATE_OR_GOTO (this->name,
-                             gfdb_brick_info->_query_cbk_args, out);
-
-        GF_VALIDATE_OR_GOTO (this->name, local_brick, out);
-
-        GF_VALIDATE_OR_GOTO (this->name, local_brick->xlator, out);
-
-        GF_VALIDATE_OR_GOTO (this->name, local_brick->brick_db_path, out);
-
-        db_path = local_brick->brick_db_path;
-
-        /*Preparing DB parameters before init_db i.e getting db connection*/
-        params_dict = dict_new ();
-        if (!params_dict) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "DB Params cannot initialized");
-                goto out;
-        }
-        SET_DB_PARAM_TO_DICT(this->name, params_dict,
-                             (char *) gfdb_methods.get_db_path_key(),
-                             db_path, ret, out);
-
-        /*Get the db connection*/
-        conn_node = gfdb_methods.init_db ((void *)params_dict, dht_tier_db_type);
-        if (!conn_node) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "FATAL: Failed initializing db operations");
-                         goto out;
-        }
-
-        /* Query for eligible files from db */
-        query_cbk_args->query_fd = open (local_brick->qfile_path,
-                        O_WRONLY | O_CREAT | O_APPEND,
-                        S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
-        if (query_cbk_args->query_fd < 0) {
-                gf_msg (this->name, GF_LOG_ERROR, errno,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to open query file %s",
-                        local_brick->qfile_path);
-                goto out;
-        }
-        if (!gfdb_brick_info->_gfdb_promote) {
-                if (query_cbk_args->defrag->tier_conf.watermark_last ==
-                        TIER_WM_HI) {
-                        /* emergency demotion mode */
-                        ret = gfdb_methods.find_all (conn_node,
-                                tier_gf_query_callback,
-                                (void *)query_cbk_args,
-                                query_cbk_args->defrag->tier_conf.
-                                        query_limit);
-                } else {
-                        if (query_cbk_args->defrag->write_freq_threshold == 0 &&
-                            query_cbk_args->defrag->read_freq_threshold == 0) {
-                                ret = gfdb_methods.find_unchanged_for_time (
-                                                conn_node,
-                                                tier_gf_query_callback,
-                                                (void *)query_cbk_args,
-                                                gfdb_brick_info->time_stamp);
-                        } else {
-                                ret = gfdb_methods.find_unchanged_for_time_freq (
-                                        conn_node,
-                                        tier_gf_query_callback,
-                                        (void *)query_cbk_args,
-                                        gfdb_brick_info->time_stamp,
-                                        query_cbk_args->defrag->
-                                                        write_freq_threshold,
-                                        query_cbk_args->defrag->
-                                                        read_freq_threshold,
-                                        _gf_false);
-                        }
-                }
+    int ret = -1;
+    char *db_path = NULL;
+    query_cbk_args_t *query_cbk_args = NULL;
+    xlator_t *this = NULL;
+    gfdb_conn_node_t *conn_node = NULL;
+    dict_t *params_dict = NULL;
+    dict_t *ctr_ipc_dict = NULL;
+    gfdb_brick_info_t *gfdb_brick_info = args;
+
+    /*Init of all the essentials*/
+    GF_VALIDATE_OR_GOTO("tier", gfdb_brick_info, out);
+    query_cbk_args = gfdb_brick_info->_query_cbk_args;
+
+    GF_VALIDATE_OR_GOTO("tier", query_cbk_args->this, out);
+    this = query_cbk_args->this;
+
+    GF_VALIDATE_OR_GOTO(this->name, gfdb_brick_info->_query_cbk_args, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick->xlator, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick->brick_db_path, out);
+
+    db_path = local_brick->brick_db_path;
+
+    /*Preparing DB parameters before init_db i.e getting db connection*/
+    params_dict = dict_new();
+    if (!params_dict) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "DB Params cannot initialized");
+        goto out;
+    }
+    SET_DB_PARAM_TO_DICT(this->name, params_dict,
+                         (char *)gfdb_methods.get_db_path_key(), db_path, ret,
+                         out);
+
+    /*Get the db connection*/
+    conn_node = gfdb_methods.init_db((void *)params_dict, dht_tier_db_type);
+    if (!conn_node) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "FATAL: Failed initializing db operations");
+        goto out;
+    }
+
+    /* Query for eligible files from db */
+    query_cbk_args->query_fd = open(local_brick->qfile_path,
+                                    O_WRONLY | O_CREAT | O_APPEND,
+                                    S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+    if (query_cbk_args->query_fd < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, errno, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to open query file %s", local_brick->qfile_path);
+        goto out;
+    }
+    if (!gfdb_brick_info->_gfdb_promote) {
+        if (query_cbk_args->defrag->tier_conf.watermark_last == TIER_WM_HI) {
+            /* emergency demotion mode */
+            ret = gfdb_methods.find_all(
+                conn_node, tier_gf_query_callback, (void *)query_cbk_args,
+                query_cbk_args->defrag->tier_conf.query_limit);
         } else {
-                if (query_cbk_args->defrag->write_freq_threshold == 0 &&
-                        query_cbk_args->defrag->read_freq_threshold == 0) {
-                        ret = gfdb_methods.find_recently_changed_files (
-                                conn_node,
-                                tier_gf_query_callback,
-                                (void *)query_cbk_args,
-                                gfdb_brick_info->time_stamp);
-                } else {
-                        ret = gfdb_methods.find_recently_changed_files_freq (
-                                conn_node,
-                                tier_gf_query_callback,
-                                (void *)query_cbk_args,
-                                gfdb_brick_info->time_stamp,
-                                query_cbk_args->defrag->write_freq_threshold,
-                                query_cbk_args->defrag->read_freq_threshold,
-                                _gf_false);
-                }
-        }
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR,
-                                "FATAL: query from db failed");
-                        goto out;
-        }
-
-        /*Clear the heat on the DB entries*/
-        /*Preparing ctr_ipc_dict*/
-        ctr_ipc_dict = dict_new ();
-        if (!ctr_ipc_dict) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "ctr_ipc_dict cannot initialized");
-                goto out;
-        }
-
-        SET_DB_PARAM_TO_DICT(this->name, ctr_ipc_dict,
-                             GFDB_IPC_CTR_KEY, GFDB_IPC_CTR_CLEAR_OPS,
-                             ret, out);
-
-        ret = syncop_ipc (local_brick->xlator, GF_IPC_TARGET_CTR, ctr_ipc_dict,
-                                                                        NULL);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed clearing the heat "
-                        "on db %s error %d", local_brick->brick_db_path, ret);
-                goto out;
-        }
-
-        ret = 0;
+            if (query_cbk_args->defrag->write_freq_threshold == 0 &&
+                query_cbk_args->defrag->read_freq_threshold == 0) {
+                ret = gfdb_methods.find_unchanged_for_time(
+                    conn_node, tier_gf_query_callback, (void *)query_cbk_args,
+                    gfdb_brick_info->time_stamp);
+            } else {
+                ret = gfdb_methods.find_unchanged_for_time_freq(
+                    conn_node, tier_gf_query_callback, (void *)query_cbk_args,
+                    gfdb_brick_info->time_stamp,
+                    query_cbk_args->defrag->write_freq_threshold,
+                    query_cbk_args->defrag->read_freq_threshold, _gf_false);
+            }
+        }
+    } else {
+        if (query_cbk_args->defrag->write_freq_threshold == 0 &&
+            query_cbk_args->defrag->read_freq_threshold == 0) {
+            ret = gfdb_methods.find_recently_changed_files(
+                conn_node, tier_gf_query_callback, (void *)query_cbk_args,
+                gfdb_brick_info->time_stamp);
+        } else {
+            ret = gfdb_methods.find_recently_changed_files_freq(
+                conn_node, tier_gf_query_callback, (void *)query_cbk_args,
+                gfdb_brick_info->time_stamp,
+                query_cbk_args->defrag->write_freq_threshold,
+                query_cbk_args->defrag->read_freq_threshold, _gf_false);
+        }
+    }
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "FATAL: query from db failed");
+        goto out;
+    }
+
+    /*Clear the heat on the DB entries*/
+    /*Preparing ctr_ipc_dict*/
+    ctr_ipc_dict = dict_new();
+    if (!ctr_ipc_dict) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "ctr_ipc_dict cannot initialized");
+        goto out;
+    }
+
+    SET_DB_PARAM_TO_DICT(this->name, ctr_ipc_dict, GFDB_IPC_CTR_KEY,
+                         GFDB_IPC_CTR_CLEAR_OPS, ret, out);
+
+    ret = syncop_ipc(local_brick->xlator, GF_IPC_TARGET_CTR, ctr_ipc_dict,
+                     NULL);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed clearing the heat "
+               "on db %s error %d",
+               local_brick->brick_db_path, ret);
+        goto out;
+    }
+
+    ret = 0;
 out:
-        if (params_dict) {
-                dict_unref (params_dict);
-                params_dict = NULL;
-        }
-
-        if (ctr_ipc_dict) {
-                dict_unref (ctr_ipc_dict);
-                ctr_ipc_dict = NULL;
-        }
-
-        if (query_cbk_args && query_cbk_args->query_fd >= 0) {
-                sys_close (query_cbk_args->query_fd);
-                query_cbk_args->query_fd = -1;
-        }
-        gfdb_methods.fini_db (conn_node);
-
-        return ret;
+    if (params_dict) {
+        dict_unref(params_dict);
+        params_dict = NULL;
+    }
+
+    if (ctr_ipc_dict) {
+        dict_unref(ctr_ipc_dict);
+        ctr_ipc_dict = NULL;
+    }
+
+    if (query_cbk_args && query_cbk_args->query_fd >= 0) {
+        sys_close(query_cbk_args->query_fd);
+        query_cbk_args->query_fd = -1;
+    }
+    gfdb_methods.fini_db(conn_node);
+
+    return ret;
 }
 
-
-
-
-
 /*Ask CTR to create the query file*/
 static int
-tier_process_ctr_query (tier_brick_list_t *local_brick, void *args)
+tier_process_ctr_query(tier_brick_list_t *local_brick, void *args)
 {
-        int ret                                         = -1;
-        query_cbk_args_t *query_cbk_args                = NULL;
-        xlator_t *this                                  = NULL;
-        dict_t *ctr_ipc_in_dict                         = NULL;
-        dict_t *ctr_ipc_out_dict                        = NULL;
-        gfdb_brick_info_t *gfdb_brick_info              = args;
-        gfdb_ipc_ctr_params_t *ipc_ctr_params           = NULL;
-        int count                                       = 0;
+    int ret = -1;
+    query_cbk_args_t *query_cbk_args = NULL;
+    xlator_t *this = NULL;
+    dict_t *ctr_ipc_in_dict = NULL;
+    dict_t *ctr_ipc_out_dict = NULL;
+    gfdb_brick_info_t *gfdb_brick_info = args;
+    gfdb_ipc_ctr_params_t *ipc_ctr_params = NULL;
+    int count = 0;
+
+    /*Init of all the essentials*/
+    GF_VALIDATE_OR_GOTO("tier", gfdb_brick_info, out);
+    query_cbk_args = gfdb_brick_info->_query_cbk_args;
+
+    GF_VALIDATE_OR_GOTO("tier", query_cbk_args->this, out);
+    this = query_cbk_args->this;
+
+    GF_VALIDATE_OR_GOTO(this->name, gfdb_brick_info->_query_cbk_args, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick->xlator, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick->brick_db_path, out);
+
+    /*Preparing ctr_ipc_in_dict*/
+    ctr_ipc_in_dict = dict_new();
+    if (!ctr_ipc_in_dict) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "ctr_ipc_in_dict cannot initialized");
+        goto out;
+    }
+
+    ipc_ctr_params = GF_CALLOC(1, sizeof(gfdb_ipc_ctr_params_t),
+                               gf_tier_mt_ipc_ctr_params_t);
+    if (!ipc_ctr_params) {
+        goto out;
+    }
+
+    /* set all the query params*/
+    ipc_ctr_params->is_promote = gfdb_brick_info->_gfdb_promote;
+
+    ipc_ctr_params->write_freq_threshold = query_cbk_args->defrag
+                                               ->write_freq_threshold;
+
+    ipc_ctr_params->read_freq_threshold = query_cbk_args->defrag
+                                              ->read_freq_threshold;
+
+    ipc_ctr_params->query_limit = query_cbk_args->defrag->tier_conf.query_limit;
+
+    ipc_ctr_params->emergency_demote = (!gfdb_brick_info->_gfdb_promote &&
+                                        query_cbk_args->defrag->tier_conf
+                                                .watermark_last == TIER_WM_HI);
+
+    memcpy(&ipc_ctr_params->time_stamp, gfdb_brick_info->time_stamp,
+           sizeof(gfdb_time_t));
+
+    SET_DB_PARAM_TO_DICT(this->name, ctr_ipc_in_dict, GFDB_IPC_CTR_KEY,
+                         GFDB_IPC_CTR_QUERY_OPS, ret, out);
+
+    SET_DB_PARAM_TO_DICT(this->name, ctr_ipc_in_dict,
+                         GFDB_IPC_CTR_GET_QFILE_PATH, local_brick->qfile_path,
+                         ret, out);
+
+    ret = dict_set_bin(ctr_ipc_in_dict, GFDB_IPC_CTR_GET_QUERY_PARAMS,
+                       ipc_ctr_params, sizeof(*ipc_ctr_params));
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, LG_MSG_SET_PARAM_FAILED,
+               "Failed setting %s to params dictionary",
+               GFDB_IPC_CTR_GET_QUERY_PARAMS);
+        GF_FREE(ipc_ctr_params);
+        goto out;
+    }
+    ipc_ctr_params = NULL;
+
+    ret = syncop_ipc(local_brick->xlator, GF_IPC_TARGET_CTR, ctr_ipc_in_dict,
+                     &ctr_ipc_out_dict);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_IPC_TIER_ERROR,
+               "Failed query on %s ret %d", local_brick->brick_db_path, ret);
+        goto out;
+    }
+
+    ret = dict_get_int32(ctr_ipc_out_dict, GFDB_IPC_CTR_RET_QUERY_COUNT,
+                         &count);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed getting count "
+               "of records on %s",
+               local_brick->brick_db_path);
+        goto out;
+    }
+
+    if (count < 0) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed query on %s", local_brick->brick_db_path);
+        ret = -1;
+        goto out;
+    }
+
+    pthread_mutex_lock(&dm_stat_mutex);
+    query_cbk_args->defrag->num_files_lookedup = count;
+    pthread_mutex_unlock(&dm_stat_mutex);
+
+    ret = 0;
+out:
 
-        /*Init of all the essentials*/
-        GF_VALIDATE_OR_GOTO ("tier", gfdb_brick_info , out);
-        query_cbk_args = gfdb_brick_info->_query_cbk_args;
+    if (ctr_ipc_in_dict) {
+        dict_unref(ctr_ipc_in_dict);
+        ctr_ipc_in_dict = NULL;
+    }
 
-        GF_VALIDATE_OR_GOTO ("tier", query_cbk_args->this, out);
-        this = query_cbk_args->this;
+    if (ctr_ipc_out_dict) {
+        dict_unref(ctr_ipc_out_dict);
+        ctr_ipc_out_dict = NULL;
+    }
 
-        GF_VALIDATE_OR_GOTO (this->name,
-                             gfdb_brick_info->_query_cbk_args, out);
+    GF_FREE(ipc_ctr_params);
 
-        GF_VALIDATE_OR_GOTO (this->name, local_brick, out);
+    return ret;
+}
 
-        GF_VALIDATE_OR_GOTO (this->name, local_brick->xlator, out);
+/* This is the call back function for each brick from hot/cold bricklist
+ * It picks up each bricks db and queries for eligible files for migration.
+ * The list of eligible files are populated in appropriate query files*/
+static int
+tier_process_brick(tier_brick_list_t *local_brick, void *args)
+{
+    int ret = -1;
+    dict_t *ctr_ipc_in_dict = NULL;
+    dict_t *ctr_ipc_out_dict = NULL;
+    char *strval = NULL;
 
-        GF_VALIDATE_OR_GOTO (this->name, local_brick->brick_db_path, out);
+    GF_VALIDATE_OR_GOTO("tier", local_brick, out);
 
+    GF_VALIDATE_OR_GOTO("tier", local_brick->xlator, out);
 
+    if (dht_tier_db_type == GFDB_SQLITE3) {
         /*Preparing ctr_ipc_in_dict*/
-        ctr_ipc_in_dict = dict_new ();
+        ctr_ipc_in_dict = dict_new();
         if (!ctr_ipc_in_dict) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "ctr_ipc_in_dict cannot initialized");
-                goto out;
+            gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "ctr_ipc_in_dict cannot initialized");
+            goto out;
         }
 
-        ipc_ctr_params = GF_CALLOC (1, sizeof (gfdb_ipc_ctr_params_t),
-                                        gf_tier_mt_ipc_ctr_params_t);
-        if (!ipc_ctr_params) {
-                goto out;
+        ret = dict_set_str(ctr_ipc_in_dict, GFDB_IPC_CTR_KEY,
+                           GFDB_IPC_CTR_GET_DB_PARAM_OPS);
+        if (ret) {
+            gf_msg("tier", GF_LOG_ERROR, 0, LG_MSG_SET_PARAM_FAILED,
+                   "Failed to set %s "
+                   "to params dictionary",
+                   GFDB_IPC_CTR_KEY);
+            goto out;
         }
 
-        /* set all the query params*/
-        ipc_ctr_params->is_promote = gfdb_brick_info->_gfdb_promote;
-
-        ipc_ctr_params->write_freq_threshold =
-                query_cbk_args->defrag->write_freq_threshold;
-
-        ipc_ctr_params->read_freq_threshold =
-                query_cbk_args->defrag->read_freq_threshold;
-
-        ipc_ctr_params->query_limit =
-                query_cbk_args->defrag->tier_conf.query_limit;
-
-        ipc_ctr_params->emergency_demote =
-                (!gfdb_brick_info->_gfdb_promote &&
-                 query_cbk_args->defrag->tier_conf.watermark_last ==
-                        TIER_WM_HI);
-
-        memcpy (&ipc_ctr_params->time_stamp,
-                gfdb_brick_info->time_stamp,
-                sizeof (gfdb_time_t));
-
-        SET_DB_PARAM_TO_DICT (this->name, ctr_ipc_in_dict,
-                              GFDB_IPC_CTR_KEY, GFDB_IPC_CTR_QUERY_OPS,
-                              ret, out);
-
-
-        SET_DB_PARAM_TO_DICT (this->name, ctr_ipc_in_dict,
-                              GFDB_IPC_CTR_GET_QFILE_PATH,
-                              local_brick->qfile_path,
-                              ret, out);
-
-        ret = dict_set_bin (ctr_ipc_in_dict, GFDB_IPC_CTR_GET_QUERY_PARAMS,
-                                ipc_ctr_params, sizeof (*ipc_ctr_params));
+        ret = dict_set_str(ctr_ipc_in_dict, GFDB_IPC_CTR_GET_DB_PARAM_OPS, "");
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0, LG_MSG_SET_PARAM_FAILED,
-                        "Failed setting %s to params dictionary",
-                        GFDB_IPC_CTR_GET_QUERY_PARAMS);
-                GF_FREE (ipc_ctr_params);
-                goto out;
+            gf_msg("tier", GF_LOG_ERROR, 0, LG_MSG_SET_PARAM_FAILED,
+                   "Failed to set %s "
+                   "to params dictionary",
+                   GFDB_IPC_CTR_GET_DB_PARAM_OPS);
+            goto out;
         }
-        ipc_ctr_params = NULL;
 
-        ret = syncop_ipc (local_brick->xlator, GF_IPC_TARGET_CTR,
-                                ctr_ipc_in_dict, &ctr_ipc_out_dict);
+        ret = dict_set_str(ctr_ipc_in_dict, GFDB_IPC_CTR_GET_DB_KEY,
+                           "journal_mode");
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_IPC_TIER_ERROR, "Failed query on %s ret %d",
-                        local_brick->brick_db_path, ret);
-                goto out;
+            gf_msg("tier", GF_LOG_ERROR, 0, LG_MSG_SET_PARAM_FAILED,
+                   "Failed to set %s "
+                   "to params dictionary",
+                   GFDB_IPC_CTR_GET_DB_KEY);
+            goto out;
+        }
+
+        ret = syncop_ipc(local_brick->xlator, GF_IPC_TARGET_CTR,
+                         ctr_ipc_in_dict, &ctr_ipc_out_dict);
+        if (ret || ctr_ipc_out_dict == NULL) {
+            gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "Failed to get "
+                   "journal_mode of sql db %s",
+                   local_brick->brick_db_path);
+            goto out;
         }
 
-        ret = dict_get_int32(ctr_ipc_out_dict, GFDB_IPC_CTR_RET_QUERY_COUNT,
-                                &count);
+        ret = dict_get_str(ctr_ipc_out_dict, "journal_mode", &strval);
         if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed getting count "
-                        "of records on %s",
-                        local_brick->brick_db_path);
-                goto out;
+            gf_msg("tier", GF_LOG_ERROR, 0, LG_MSG_GET_PARAM_FAILED,
+                   "Failed to get %s "
+                   "from params dictionary"
+                   "journal_mode",
+                   strval);
+            goto out;
         }
 
-        if (count < 0) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed query on %s",
-                        local_brick->brick_db_path);
-                ret = -1;
+        if (strval && (strncmp(strval, "wal", SLEN("wal")) == 0)) {
+            ret = tier_process_self_query(local_brick, args);
+            if (ret) {
                 goto out;
+            }
+        } else {
+            ret = tier_process_ctr_query(local_brick, args);
+            if (ret) {
+                goto out;
+            }
         }
-
-        pthread_mutex_lock (&dm_stat_mutex);
-        query_cbk_args->defrag->num_files_lookedup = count;
-        pthread_mutex_unlock (&dm_stat_mutex);
-
         ret = 0;
-out:
 
-        if (ctr_ipc_in_dict) {
-                dict_unref(ctr_ipc_in_dict);
-                ctr_ipc_in_dict = NULL;
+    } else {
+        ret = tier_process_self_query(local_brick, args);
+        if (ret) {
+            goto out;
         }
+    }
 
-        if (ctr_ipc_out_dict) {
-                dict_unref(ctr_ipc_out_dict);
-                ctr_ipc_out_dict = NULL;
-        }
+    ret = 0;
+out:
+    if (ctr_ipc_in_dict)
+        dict_unref(ctr_ipc_in_dict);
 
-        GF_FREE (ipc_ctr_params);
+    if (ctr_ipc_out_dict)
+        dict_unref(ctr_ipc_out_dict);
 
-        return ret;
+    return ret;
 }
 
-
-
-
-/* This is the call back function for each brick from hot/cold bricklist
- * It picks up each bricks db and queries for eligible files for migration.
- * The list of eligible files are populated in appropriate query files*/
 static int
-tier_process_brick (tier_brick_list_t *local_brick, void *args) {
-        int ret = -1;
-        dict_t *ctr_ipc_in_dict = NULL;
-        dict_t *ctr_ipc_out_dict = NULL;
-        char *strval = NULL;
-
-        GF_VALIDATE_OR_GOTO ("tier", local_brick, out);
-
-        GF_VALIDATE_OR_GOTO ("tier", local_brick->xlator, out);
-
-        if (dht_tier_db_type == GFDB_SQLITE3) {
-
-                /*Preparing ctr_ipc_in_dict*/
-                ctr_ipc_in_dict = dict_new ();
-                if (!ctr_ipc_in_dict) {
-                        gf_msg ("tier", GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR,
-                                "ctr_ipc_in_dict cannot initialized");
-                        goto out;
-                }
-
-                ret = dict_set_str (ctr_ipc_in_dict, GFDB_IPC_CTR_KEY,
-                                    GFDB_IPC_CTR_GET_DB_PARAM_OPS);
-                if (ret) {
-                        gf_msg ("tier", GF_LOG_ERROR, 0,\
-                                LG_MSG_SET_PARAM_FAILED, "Failed to set %s "
-                                "to params dictionary", GFDB_IPC_CTR_KEY);
-                        goto out;
-                }
-
-                ret = dict_set_str (ctr_ipc_in_dict,
-                                    GFDB_IPC_CTR_GET_DB_PARAM_OPS, "");
-                if (ret) {
-                        gf_msg ("tier", GF_LOG_ERROR, 0,\
-                                LG_MSG_SET_PARAM_FAILED, "Failed to set %s "
-                                "to params dictionary",
-                                GFDB_IPC_CTR_GET_DB_PARAM_OPS);
-                        goto out;
-                }
-
-                ret = dict_set_str (ctr_ipc_in_dict,
-                                    GFDB_IPC_CTR_GET_DB_KEY, "journal_mode");
-                if (ret) {
-                        gf_msg ("tier", GF_LOG_ERROR, 0,
-                                LG_MSG_SET_PARAM_FAILED, "Failed to set %s "
-                                "to params dictionary",
-                                GFDB_IPC_CTR_GET_DB_KEY);
-                        goto out;
-                }
-
-
-
-                ret = syncop_ipc (local_brick->xlator, GF_IPC_TARGET_CTR,
-                                ctr_ipc_in_dict, &ctr_ipc_out_dict);
-                if (ret || ctr_ipc_out_dict == NULL) {
-                        gf_msg ("tier", GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR, "Failed to get "
-                                "journal_mode of sql db %s",
-                                local_brick->brick_db_path);
-                        goto out;
-                }
-
-                ret = dict_get_str (ctr_ipc_out_dict, "journal_mode", &strval);
-                if (ret) {
-                        gf_msg ("tier", GF_LOG_ERROR, 0,
-                                LG_MSG_GET_PARAM_FAILED, "Failed to get %s "
-                                "from params dictionary"
-                                "journal_mode", strval);
-                        goto out;
-                }
+tier_build_migration_qfile(migration_args_t *args,
+                           query_cbk_args_t *query_cbk_args,
+                           gf_boolean_t is_promotion)
+{
+    gfdb_time_t current_time;
+    gfdb_brick_info_t gfdb_brick_info;
+    gfdb_time_t time_in_past;
+    int ret = -1;
+    tier_brick_list_t *local_brick = NULL;
+    int i = 0;
+    time_in_past.tv_sec = args->freq_time;
+    time_in_past.tv_usec = 0;
+
+    ret = gettimeofday(&current_time, NULL);
+    if (ret == -1) {
+        gf_msg(args->this->name, GF_LOG_ERROR, errno,
+               DHT_MSG_SYS_CALL_GET_TIME_FAILED, "Failed to get current time");
+        goto out;
+    }
+    time_in_past.tv_sec = current_time.tv_sec - time_in_past.tv_sec;
+
+    /* The migration daemon may run a varying numberof usec after the */
+    /* sleep call triggers. A file may be registered in CTR some number */
+    /* of usec X after the daemon started and missed in the subsequent */
+    /* cycle if the daemon starts Y usec after the period in seconds */
+    /* where Y>X. Normalize away this problem by always setting usec */
+    /* to 0. */
+    time_in_past.tv_usec = 0;
+
+    gfdb_brick_info.time_stamp = &time_in_past;
+    gfdb_brick_info._gfdb_promote = is_promotion;
+    gfdb_brick_info._query_cbk_args = query_cbk_args;
+
+    list_for_each_entry(local_brick, args->brick_list, list)
+    {
+        /* Construct query file path for this brick
+         * i.e
+         * /var/run/gluster/xlator_name/
+         * {promote/demote}-brickname-indexinbricklist
+         * So that no two query files will have same path even
+         * bricks have the same name
+         * */
+        snprintf(local_brick->qfile_path, PATH_MAX, "%s-%s-%d",
+                 GET_QFILE_PATH(gfdb_brick_info._gfdb_promote),
+                 local_brick->brick_name, i);
 
-                if (strval && (strncmp(strval, "wal", SLEN ("wal")) == 0)) {
-                        ret = tier_process_self_query (local_brick, args);
-                        if (ret) {
-                                goto out;
-                        }
-                } else {
-                        ret = tier_process_ctr_query (local_brick, args);
-                        if (ret) {
-                                goto out;
-                        }
-                }
-                ret = 0;
+        /* Delete any old query files for this brick */
+        sys_unlink(local_brick->qfile_path);
 
-        } else {
-                ret = tier_process_self_query (local_brick, args);
-                if (ret) {
-                        goto out;
-                }
+        ret = tier_process_brick(local_brick, &gfdb_brick_info);
+        if (ret) {
+            gf_msg(args->this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_BRICK_QUERY_FAILED, "Brick %s query failed\n",
+                   local_brick->brick_db_path);
         }
-
-        ret = 0;
+        i++;
+    }
+    ret = 0;
 out:
-        if  (ctr_ipc_in_dict)
-                dict_unref (ctr_ipc_in_dict);
-
-        if  (ctr_ipc_out_dict)
-                dict_unref (ctr_ipc_out_dict);
-
-        return ret;
+    return ret;
 }
 
-
-
-
 static int
-tier_build_migration_qfile (migration_args_t *args,
-                            query_cbk_args_t *query_cbk_args,
-                            gf_boolean_t is_promotion)
+tier_migrate_files_using_qfile(migration_args_t *comp,
+                               query_cbk_args_t *query_cbk_args)
 {
-        gfdb_time_t               current_time;
-        gfdb_brick_info_t         gfdb_brick_info;
-        gfdb_time_t               time_in_past;
-        int                       ret = -1;
-        tier_brick_list_t         *local_brick = NULL;
-        int                       i = 0;
-        time_in_past.tv_sec = args->freq_time;
-        time_in_past.tv_usec = 0;
-
-        ret = gettimeofday (&current_time, NULL);
-        if (ret == -1) {
-                gf_msg (args->this->name, GF_LOG_ERROR, errno,
-                        DHT_MSG_SYS_CALL_GET_TIME_FAILED,
-                        "Failed to get current time");
-                goto out;
-        }
-        time_in_past.tv_sec = current_time.tv_sec - time_in_past.tv_sec;
-
-        /* The migration daemon may run a varying numberof usec after the */
-        /* sleep call triggers. A file may be registered in CTR some number */
-        /* of usec X after the daemon started and missed in the subsequent */
-        /* cycle if the daemon starts Y usec after the period in seconds */
-        /* where Y>X. Normalize away this problem by always setting usec */
-        /* to 0. */
-        time_in_past.tv_usec = 0;
-
-        gfdb_brick_info.time_stamp = &time_in_past;
-        gfdb_brick_info._gfdb_promote = is_promotion;
-        gfdb_brick_info._query_cbk_args = query_cbk_args;
-
-        list_for_each_entry (local_brick, args->brick_list, list) {
-
-                /* Construct query file path for this brick
-                 * i.e
-                 * /var/run/gluster/xlator_name/
-                 * {promote/demote}-brickname-indexinbricklist
-                 * So that no two query files will have same path even
-                 * bricks have the same name
-                 * */
-                snprintf (local_brick->qfile_path, PATH_MAX , "%s-%s-%d",
-                        GET_QFILE_PATH (gfdb_brick_info._gfdb_promote),
-                        local_brick->brick_name, i);
-
-                /* Delete any old query files for this brick */
-                sys_unlink (local_brick->qfile_path);
-
-                ret = tier_process_brick (local_brick,
-                                          &gfdb_brick_info);
-                if (ret) {
-                        gf_msg (args->this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_BRICK_QUERY_FAILED,
-                                "Brick %s query failed\n",
-                                local_brick->brick_db_path);
-                }
-                i++;
-        }
-        ret = 0;
+    int ret = -1;
+    tier_brick_list_t *local_brick = NULL;
+    tier_brick_list_t *temp = NULL;
+    gfdb_time_t current_time = {
+        0,
+    };
+    ssize_t qfile_array_size = 0;
+    int count = 0;
+    int temp_fd = 0;
+    gf_tier_conf_t *tier_conf = NULL;
+
+    tier_conf = &(query_cbk_args->defrag->tier_conf);
+
+    /* Time for error query files */
+    gettimeofday(&current_time, NULL);
+
+    /* Build the qfile list */
+    list_for_each_entry_safe(local_brick, temp, comp->brick_list, list)
+    {
+        qfile_array_size++;
+    }
+    query_cbk_args->qfile_array = qfile_array_new(qfile_array_size);
+    if (!query_cbk_args->qfile_array) {
+        gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to create new "
+               "qfile_array");
+        goto out;
+    }
+
+    /*Open all qfiles*/
+    count = 0;
+    query_cbk_args->qfile_array->exhausted_count = 0;
+    list_for_each_entry_safe(local_brick, temp, comp->brick_list, list)
+    {
+        temp_fd = query_cbk_args->qfile_array->fd_array[count];
+        temp_fd = open(local_brick->qfile_path, O_RDONLY,
+                       S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+        if (temp_fd < 0) {
+            gf_msg("tier", GF_LOG_ERROR, errno, DHT_MSG_LOG_TIER_ERROR,
+                   "Failed to open "
+                   "%s to the query file",
+                   local_brick->qfile_path);
+            query_cbk_args->qfile_array->exhausted_count++;
+        }
+        query_cbk_args->qfile_array->fd_array[count] = temp_fd;
+        count++;
+    }
+
+    /* Moving the query file index to the next, so that we won't the same
+     * query file every cycle as the first one */
+    query_cbk_args->qfile_array
+        ->next_index = (query_cbk_args->is_promotion)
+                           ? tier_conf->last_promote_qfile_index
+                           : tier_conf->last_demote_qfile_index;
+    shift_next_index(query_cbk_args->qfile_array);
+    if (query_cbk_args->is_promotion) {
+        tier_conf->last_promote_qfile_index = query_cbk_args->qfile_array
+                                                  ->next_index;
+    } else {
+        tier_conf->last_demote_qfile_index = query_cbk_args->qfile_array
+                                                 ->next_index;
+    }
+
+    /* Migrate files using query file list */
+    ret = tier_migrate_using_query_file((void *)query_cbk_args);
 out:
-        return ret;
+    qfile_array_free(query_cbk_args->qfile_array);
+
+    /* If there is an error rename all the query files to .err files
+     * with a timestamp for better debugging */
+    if (ret) {
+        struct tm tm = {
+            0,
+        };
+        char time_str[128] = {
+            0,
+        };
+        char query_file_path_err[PATH_MAX] = {
+            0,
+        };
+        int32_t len = 0;
+
+        /* Time format for error query files */
+        gmtime_r(&current_time.tv_sec, &tm);
+        strftime(time_str, sizeof(time_str), "%F-%T", &tm);
+
+        list_for_each_entry_safe(local_brick, temp, comp->brick_list, list)
+        {
+            /* rename error qfile*/
+            len = snprintf(query_file_path_err, sizeof(query_file_path_err),
+                           "%s-%s.err", local_brick->qfile_path, time_str);
+            if ((len >= 0) && (len < sizeof(query_file_path_err))) {
+                if (sys_rename(local_brick->qfile_path, query_file_path_err) ==
+                    -1)
+                    gf_msg_debug("tier", 0,
+                                 "rename "
+                                 "failed");
+            }
+        }
+    }
+
+    query_cbk_args->qfile_array = NULL;
+
+    return ret;
 }
 
-static int
-tier_migrate_files_using_qfile (migration_args_t *comp,
-                                query_cbk_args_t *query_cbk_args)
+int
+tier_demote(migration_args_t *demotion_args)
 {
-        int ret                                 = -1;
-        tier_brick_list_t *local_brick          = NULL;
-        tier_brick_list_t *temp                 = NULL;
-        gfdb_time_t current_time                = {0,};
-        ssize_t qfile_array_size                = 0;
-        int count                               = 0;
-        int temp_fd                             = 0;
-        gf_tier_conf_t  *tier_conf              = NULL;
-
-        tier_conf = &(query_cbk_args->defrag->tier_conf);
-
-        /* Time for error query files */
-        gettimeofday (&current_time, NULL);
-
-        /* Build the qfile list */
-        list_for_each_entry_safe (local_brick, temp, comp->brick_list, list) {
-                qfile_array_size++;
-        }
-        query_cbk_args->qfile_array = qfile_array_new (qfile_array_size);
-        if (!query_cbk_args->qfile_array) {
-                gf_msg ("tier", GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed to create new "
-                        "qfile_array");
-                goto out;
-        }
-
-        /*Open all qfiles*/
-        count = 0;
-        query_cbk_args->qfile_array->exhausted_count = 0;
-        list_for_each_entry_safe (local_brick, temp, comp->brick_list, list) {
-                temp_fd = query_cbk_args->qfile_array->fd_array[count];
-                temp_fd = open (local_brick->qfile_path, O_RDONLY,
-                                S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
-                if (temp_fd < 0) {
-                        gf_msg ("tier", GF_LOG_ERROR, errno,
-                                DHT_MSG_LOG_TIER_ERROR, "Failed to open "
-                                "%s to the query file",
-                                local_brick->qfile_path);
-                        query_cbk_args->qfile_array->exhausted_count++;
-                }
-                query_cbk_args->qfile_array->fd_array[count] = temp_fd;
-                count++;
-        }
-
-        /* Moving the query file index to the next, so that we won't the same
-         * query file every cycle as the first one */
-        query_cbk_args->qfile_array->next_index =
-                        (query_cbk_args->is_promotion) ?
-                        tier_conf->last_promote_qfile_index :
-                        tier_conf->last_demote_qfile_index;
-        shift_next_index (query_cbk_args->qfile_array);
-        if (query_cbk_args->is_promotion) {
-                tier_conf->last_promote_qfile_index =
-                        query_cbk_args->qfile_array->next_index;
-        } else {
-                tier_conf->last_demote_qfile_index =
-                        query_cbk_args->qfile_array->next_index;
-        }
-
-        /* Migrate files using query file list */
-        ret = tier_migrate_using_query_file ((void *)query_cbk_args);
-out:
-        qfile_array_free (query_cbk_args->qfile_array);
-
-        /* If there is an error rename all the query files to .err files
-         * with a timestamp for better debugging */
-        if (ret) {
-                struct tm tm                            = {0,};
-                char time_str[128]                      = {0,};
-                char query_file_path_err[PATH_MAX]      = {0,};
-                int32_t len                             = 0;
-
-                /* Time format for error query files */
-                gmtime_r (&current_time.tv_sec, &tm);
-                strftime (time_str, sizeof (time_str), "%F-%T", &tm);
-
-                list_for_each_entry_safe (local_brick, temp, comp->brick_list,
-                                        list) {
-                        /* rename error qfile*/
-                        len = snprintf (query_file_path_err,
-                                        sizeof (query_file_path_err),
-                                        "%s-%s.err", local_brick->qfile_path,
-                                        time_str);
-                        if ((len >= 0) &&
-                            (len < sizeof(query_file_path_err))) {
-                                if (sys_rename (local_brick->qfile_path,
-                                                query_file_path_err) == -1)
-                                        gf_msg_debug ("tier", 0, "rename "
-                                                      "failed");
-                        }
-                }
-        }
-
-        query_cbk_args->qfile_array = NULL;
+    query_cbk_args_t query_cbk_args;
+    int ret = -1;
 
-        return ret;
-}
+    GF_VALIDATE_OR_GOTO("tier", demotion_args, out);
+    GF_VALIDATE_OR_GOTO("tier", demotion_args->this, out);
+    GF_VALIDATE_OR_GOTO(demotion_args->this->name, demotion_args->brick_list,
+                        out);
+    GF_VALIDATE_OR_GOTO(demotion_args->this->name, demotion_args->defrag, out);
 
+    THIS = demotion_args->this;
 
+    query_cbk_args.this = demotion_args->this;
+    query_cbk_args.defrag = demotion_args->defrag;
+    query_cbk_args.is_promotion = 0;
 
-int
-tier_demote (migration_args_t *demotion_args)
-{
-        query_cbk_args_t query_cbk_args;
-        int ret = -1;
-
-        GF_VALIDATE_OR_GOTO ("tier", demotion_args, out);
-        GF_VALIDATE_OR_GOTO ("tier", demotion_args->this, out);
-        GF_VALIDATE_OR_GOTO (demotion_args->this->name,
-                             demotion_args->brick_list, out);
-        GF_VALIDATE_OR_GOTO (demotion_args->this->name,
-                             demotion_args->defrag, out);
-
-        THIS = demotion_args->this;
-
-        query_cbk_args.this = demotion_args->this;
-        query_cbk_args.defrag = demotion_args->defrag;
-        query_cbk_args.is_promotion = 0;
-
-        /*Build the query file using bricklist*/
-        ret = tier_build_migration_qfile (demotion_args, &query_cbk_args,
-                                          _gf_false);
-        if (ret)
-                goto out;
+    /*Build the query file using bricklist*/
+    ret = tier_build_migration_qfile(demotion_args, &query_cbk_args, _gf_false);
+    if (ret)
+        goto out;
 
-        /* Migrate files using the query file */
-        ret = tier_migrate_files_using_qfile (demotion_args,
-                                              &query_cbk_args);
-        if (ret)
-                goto out;
+    /* Migrate files using the query file */
+    ret = tier_migrate_files_using_qfile(demotion_args, &query_cbk_args);
+    if (ret)
+        goto out;
 
 out:
-        demotion_args->return_value = ret;
-        return ret;
+    demotion_args->return_value = ret;
+    return ret;
 }
 
-
 int
-tier_promote (migration_args_t *promotion_args)
+tier_promote(migration_args_t *promotion_args)
 {
-        int ret = -1;
-        query_cbk_args_t query_cbk_args;
+    int ret = -1;
+    query_cbk_args_t query_cbk_args;
 
-        GF_VALIDATE_OR_GOTO ("tier", promotion_args->this, out);
-        GF_VALIDATE_OR_GOTO (promotion_args->this->name,
-                             promotion_args->brick_list, out);
-        GF_VALIDATE_OR_GOTO (promotion_args->this->name,
-                             promotion_args->defrag, out);
+    GF_VALIDATE_OR_GOTO("tier", promotion_args->this, out);
+    GF_VALIDATE_OR_GOTO(promotion_args->this->name, promotion_args->brick_list,
+                        out);
+    GF_VALIDATE_OR_GOTO(promotion_args->this->name, promotion_args->defrag,
+                        out);
 
-        THIS = promotion_args->this;
+    THIS = promotion_args->this;
 
-        query_cbk_args.this = promotion_args->this;
-        query_cbk_args.defrag = promotion_args->defrag;
-        query_cbk_args.is_promotion = 1;
+    query_cbk_args.this = promotion_args->this;
+    query_cbk_args.defrag = promotion_args->defrag;
+    query_cbk_args.is_promotion = 1;
 
-        /*Build the query file using bricklist*/
-        ret = tier_build_migration_qfile (promotion_args, &query_cbk_args,
-                                          _gf_true);
-        if (ret)
-                goto out;
+    /*Build the query file using bricklist*/
+    ret = tier_build_migration_qfile(promotion_args, &query_cbk_args, _gf_true);
+    if (ret)
+        goto out;
 
-        /* Migrate files using the query file */
-        ret = tier_migrate_files_using_qfile (promotion_args, &query_cbk_args);
-        if (ret)
-                goto out;
+    /* Migrate files using the query file */
+    ret = tier_migrate_files_using_qfile(promotion_args, &query_cbk_args);
+    if (ret)
+        goto out;
 
 out:
-        promotion_args->return_value = ret;
-        return ret;
+    promotion_args->return_value = ret;
+    return ret;
 }
 
-
 /*
  * Command the CTR on a brick to compact the local database using an IPC
  */
 static int
-tier_process_self_compact (tier_brick_list_t *local_brick, void *args)
+tier_process_self_compact(tier_brick_list_t *local_brick, void *args)
 {
-        int ret                                         = -1;
-        char *db_path                                   = NULL;
-        query_cbk_args_t *query_cbk_args                = NULL;
-        xlator_t *this                                  = NULL;
-        gfdb_conn_node_t *conn_node                     = NULL;
-        dict_t *params_dict                             = NULL;
-        dict_t *ctr_ipc_dict                            = NULL;
-        gfdb_brick_info_t *gfdb_brick_info              = args;
-
-        /*Init of all the essentials*/
-        GF_VALIDATE_OR_GOTO ("tier", gfdb_brick_info , out);
-        query_cbk_args = gfdb_brick_info->_query_cbk_args;
-
-        GF_VALIDATE_OR_GOTO ("tier", query_cbk_args->this, out);
-        this = query_cbk_args->this;
-
-        GF_VALIDATE_OR_GOTO (this->name,
-                             gfdb_brick_info->_query_cbk_args, out);
-
-        GF_VALIDATE_OR_GOTO (this->name, local_brick, out);
-
-        GF_VALIDATE_OR_GOTO (this->name, local_brick->xlator, out);
-
-        GF_VALIDATE_OR_GOTO (this->name, local_brick->brick_db_path, out);
-
-        db_path = local_brick->brick_db_path;
-
-        /*Preparing DB parameters before init_db i.e getting db connection*/
-        params_dict = dict_new ();
-        if (!params_dict) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "DB Params cannot initialized");
-                goto out;
-        }
-        SET_DB_PARAM_TO_DICT (this->name, params_dict,
-                             (char *) gfdb_methods.get_db_path_key(), db_path,
-                             ret, out);
-
-        /*Get the db connection*/
-        conn_node = gfdb_methods.init_db ((void *)params_dict,
-                                          dht_tier_db_type);
-        if (!conn_node) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "FATAL: Failed initializing db operations");
-                         goto out;
-        }
-
-        ret = 0;
-
-        /*Preparing ctr_ipc_dict*/
-        ctr_ipc_dict = dict_new ();
-        if (!ctr_ipc_dict) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "ctr_ipc_dict cannot initialized");
-                goto out;
-        }
-
-        ret = dict_set_int32 (ctr_ipc_dict, "compact_active",
-                              query_cbk_args->defrag->
-                              tier_conf.compact_active);
-
-        if (ret) {
-                gf_msg ("tier", GF_LOG_ERROR, 0,
-                        LG_MSG_SET_PARAM_FAILED, "Failed to set %s "
-                        "to params dictionary",
-                        "compact_active");
-                goto out;
-        }
-
-        ret = dict_set_int32 (ctr_ipc_dict, "compact_mode_switched",
-                              query_cbk_args->defrag->
-                              tier_conf.compact_mode_switched);
-
-        if (ret) {
-                gf_msg ("tier", GF_LOG_ERROR, 0,
-                        LG_MSG_SET_PARAM_FAILED, "Failed to set %s "
-                        "to params dictionary",
-                        "compact_mode_switched");
-                goto out;
-        }
-
-        SET_DB_PARAM_TO_DICT(this->name, ctr_ipc_dict,
-                             GFDB_IPC_CTR_KEY, GFDB_IPC_CTR_SET_COMPACT_PRAGMA,
-                             ret, out);
-
-        gf_msg (this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
-                "Starting Compaction IPC");
-
-        ret = syncop_ipc (local_brick->xlator, GF_IPC_TARGET_CTR, ctr_ipc_dict,
-                          NULL);
-
-        gf_msg (this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
-                "Ending Compaction IPC");
-
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR, "Failed compaction "
-                        "on db %s error %d", local_brick->brick_db_path, ret);
-                goto out;
-        }
-
-        gf_msg (this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
-                "SUCCESS: %s Compaction", local_brick->brick_name);
-
-        ret = 0;
+    int ret = -1;
+    char *db_path = NULL;
+    query_cbk_args_t *query_cbk_args = NULL;
+    xlator_t *this = NULL;
+    gfdb_conn_node_t *conn_node = NULL;
+    dict_t *params_dict = NULL;
+    dict_t *ctr_ipc_dict = NULL;
+    gfdb_brick_info_t *gfdb_brick_info = args;
+
+    /*Init of all the essentials*/
+    GF_VALIDATE_OR_GOTO("tier", gfdb_brick_info, out);
+    query_cbk_args = gfdb_brick_info->_query_cbk_args;
+
+    GF_VALIDATE_OR_GOTO("tier", query_cbk_args->this, out);
+    this = query_cbk_args->this;
+
+    GF_VALIDATE_OR_GOTO(this->name, gfdb_brick_info->_query_cbk_args, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick->xlator, out);
+
+    GF_VALIDATE_OR_GOTO(this->name, local_brick->brick_db_path, out);
+
+    db_path = local_brick->brick_db_path;
+
+    /*Preparing DB parameters before init_db i.e getting db connection*/
+    params_dict = dict_new();
+    if (!params_dict) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "DB Params cannot initialized");
+        goto out;
+    }
+    SET_DB_PARAM_TO_DICT(this->name, params_dict,
+                         (char *)gfdb_methods.get_db_path_key(), db_path, ret,
+                         out);
+
+    /*Get the db connection*/
+    conn_node = gfdb_methods.init_db((void *)params_dict, dht_tier_db_type);
+    if (!conn_node) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "FATAL: Failed initializing db operations");
+        goto out;
+    }
+
+    ret = 0;
+
+    /*Preparing ctr_ipc_dict*/
+    ctr_ipc_dict = dict_new();
+    if (!ctr_ipc_dict) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "ctr_ipc_dict cannot initialized");
+        goto out;
+    }
+
+    ret = dict_set_int32(ctr_ipc_dict, "compact_active",
+                         query_cbk_args->defrag->tier_conf.compact_active);
+
+    if (ret) {
+        gf_msg("tier", GF_LOG_ERROR, 0, LG_MSG_SET_PARAM_FAILED,
+               "Failed to set %s "
+               "to params dictionary",
+               "compact_active");
+        goto out;
+    }
+
+    ret = dict_set_int32(
+        ctr_ipc_dict, "compact_mode_switched",
+        query_cbk_args->defrag->tier_conf.compact_mode_switched);
+
+    if (ret) {
+        gf_msg("tier", GF_LOG_ERROR, 0, LG_MSG_SET_PARAM_FAILED,
+               "Failed to set %s "
+               "to params dictionary",
+               "compact_mode_switched");
+        goto out;
+    }
+
+    SET_DB_PARAM_TO_DICT(this->name, ctr_ipc_dict, GFDB_IPC_CTR_KEY,
+                         GFDB_IPC_CTR_SET_COMPACT_PRAGMA, ret, out);
+
+    gf_msg(this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
+           "Starting Compaction IPC");
+
+    ret = syncop_ipc(local_brick->xlator, GF_IPC_TARGET_CTR, ctr_ipc_dict,
+                     NULL);
+
+    gf_msg(this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
+           "Ending Compaction IPC");
+
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed compaction "
+               "on db %s error %d",
+               local_brick->brick_db_path, ret);
+        goto out;
+    }
+
+    gf_msg(this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
+           "SUCCESS: %s Compaction", local_brick->brick_name);
+
+    ret = 0;
 out:
-        if (params_dict) {
-                dict_unref (params_dict);
-                params_dict = NULL;
-        }
+    if (params_dict) {
+        dict_unref(params_dict);
+        params_dict = NULL;
+    }
 
-        if (ctr_ipc_dict) {
-                dict_unref (ctr_ipc_dict);
-                ctr_ipc_dict = NULL;
-        }
+    if (ctr_ipc_dict) {
+        dict_unref(ctr_ipc_dict);
+        ctr_ipc_dict = NULL;
+    }
 
-        gfdb_methods.fini_db (conn_node);
+    gfdb_methods.fini_db(conn_node);
 
-        return ret;
+    return ret;
 }
 
 /*
@@ -1995,403 +1856,366 @@ out:
  * function to prepare the compaction IPC.
  */
 static int
-tier_compact_db_brick (tier_brick_list_t *local_brick, void *args)
+tier_compact_db_brick(tier_brick_list_t *local_brick, void *args)
 {
-        int ret = -1;
+    int ret = -1;
 
-        GF_VALIDATE_OR_GOTO ("tier", local_brick, out);
+    GF_VALIDATE_OR_GOTO("tier", local_brick, out);
 
-        GF_VALIDATE_OR_GOTO ("tier", local_brick->xlator, out);
+    GF_VALIDATE_OR_GOTO("tier", local_brick->xlator, out);
 
-        ret = tier_process_self_compact (local_brick, args);
-        if (ret) {
-                gf_msg ("tier", GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Brick %s did not compact",
-                        local_brick->brick_name);
-                goto out;
-        }
+    ret = tier_process_self_compact(local_brick, args);
+    if (ret) {
+        gf_msg("tier", GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "Brick %s did not compact", local_brick->brick_name);
+        goto out;
+    }
 
-        ret = 0;
+    ret = 0;
 
 out:
 
-        return ret;
+    return ret;
 }
 
 static int
-tier_send_compact (migration_args_t *args,
-                   query_cbk_args_t *query_cbk_args)
+tier_send_compact(migration_args_t *args, query_cbk_args_t *query_cbk_args)
 {
-        gfdb_time_t               current_time;
-        gfdb_brick_info_t         gfdb_brick_info;
-        gfdb_time_t               time_in_past;
-        int                       ret = -1;
-        tier_brick_list_t         *local_brick = NULL;
-
-        time_in_past.tv_sec = args->freq_time;
-        time_in_past.tv_usec = 0;
-
-        ret = gettimeofday (&current_time, NULL);
-        if (ret == -1) {
-                gf_msg (args->this->name, GF_LOG_ERROR, errno,
-                        DHT_MSG_SYS_CALL_GET_TIME_FAILED,
-                        "Failed to get current time");
-                goto out;
+    gfdb_time_t current_time;
+    gfdb_brick_info_t gfdb_brick_info;
+    gfdb_time_t time_in_past;
+    int ret = -1;
+    tier_brick_list_t *local_brick = NULL;
+
+    time_in_past.tv_sec = args->freq_time;
+    time_in_past.tv_usec = 0;
+
+    ret = gettimeofday(&current_time, NULL);
+    if (ret == -1) {
+        gf_msg(args->this->name, GF_LOG_ERROR, errno,
+               DHT_MSG_SYS_CALL_GET_TIME_FAILED, "Failed to get current time");
+        goto out;
+    }
+    time_in_past.tv_sec = current_time.tv_sec - time_in_past.tv_sec;
+
+    /* The migration daemon may run a varying numberof usec after the sleep
+       call triggers. A file may be registered in CTR some number of usec X
+       after the daemon started and missed in the subsequent cycle if the
+       daemon starts Y usec after the period in seconds where Y>X. Normalize
+       away this problem by always setting usec to 0. */
+    time_in_past.tv_usec = 0;
+
+    gfdb_brick_info.time_stamp = &time_in_past;
+
+    /* This is meant to say we are always compacting at this point */
+    /* We simply borrow the promotion flag to do this */
+    gfdb_brick_info._gfdb_promote = 1;
+
+    gfdb_brick_info._query_cbk_args = query_cbk_args;
+
+    list_for_each_entry(local_brick, args->brick_list, list)
+    {
+        gf_msg(args->this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
+               "Start compaction for %s", local_brick->brick_name);
+
+        ret = tier_compact_db_brick(local_brick, &gfdb_brick_info);
+        if (ret) {
+            gf_msg(args->this->name, GF_LOG_ERROR, 0,
+                   DHT_MSG_BRICK_QUERY_FAILED, "Brick %s compaction failed\n",
+                   local_brick->brick_db_path);
         }
-        time_in_past.tv_sec = current_time.tv_sec - time_in_past.tv_sec;
 
-        /* The migration daemon may run a varying numberof usec after the sleep
-           call triggers. A file may be registered in CTR some number of usec X
-           after the daemon started and missed in the subsequent cycle if the
-           daemon starts Y usec after the period in seconds where Y>X. Normalize
-           away this problem by always setting usec to 0. */
-        time_in_past.tv_usec = 0;
-
-        gfdb_brick_info.time_stamp = &time_in_past;
-
-        /* This is meant to say we are always compacting at this point */
-        /* We simply borrow the promotion flag to do this */
-        gfdb_brick_info._gfdb_promote = 1;
+        gf_msg(args->this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
+               "End compaction for %s", local_brick->brick_name);
+    }
+    ret = 0;
+out:
+    return ret;
+}
 
-        gfdb_brick_info._query_cbk_args = query_cbk_args;
+static int
+tier_compact(void *args)
+{
+    int ret = -1;
+    query_cbk_args_t query_cbk_args;
+    migration_args_t *compaction_args = args;
+
+    GF_VALIDATE_OR_GOTO("tier", compaction_args->this, out);
+    GF_VALIDATE_OR_GOTO(compaction_args->this->name,
+                        compaction_args->brick_list, out);
+    GF_VALIDATE_OR_GOTO(compaction_args->this->name, compaction_args->defrag,
+                        out);
+
+    THIS = compaction_args->this;
+
+    query_cbk_args.this = compaction_args->this;
+    query_cbk_args.defrag = compaction_args->defrag;
+    query_cbk_args.is_compaction = 1;
+
+    /* Send the compaction pragma out to all the bricks on the bricklist. */
+    /* tier_get_bricklist ensures all bricks on the list are local to */
+    /* this node. */
+    ret = tier_send_compact(compaction_args, &query_cbk_args);
+    if (ret)
+        goto out;
+
+    ret = 0;
+out:
+    compaction_args->return_value = ret;
+    return ret;
+}
 
-        list_for_each_entry (local_brick, args->brick_list, list) {
+static int
+tier_get_bricklist(xlator_t *xl, struct list_head *local_bricklist_head)
+{
+    xlator_list_t *child = NULL;
+    char *rv = NULL;
+    char *rh = NULL;
+    char *brickname = NULL;
+    char db_name[PATH_MAX] = "";
+    int ret = 0;
+    tier_brick_list_t *local_brick = NULL;
+    int32_t len = 0;
+
+    GF_VALIDATE_OR_GOTO("tier", xl, out);
+    GF_VALIDATE_OR_GOTO("tier", local_bricklist_head, out);
+
+    /*
+     * This function obtains remote subvolumes and filters out only
+     * those running on the same node as the tier daemon.
+     */
+    if (strcmp(xl->type, "protocol/client") == 0) {
+        ret = dict_get_str(xl->options, "remote-host", &rh);
+        if (ret < 0)
+            goto out;
 
-                gf_msg (args->this->name, GF_LOG_TRACE, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Start compaction for %s",
-                        local_brick->brick_name);
+        if (gf_is_local_addr(rh)) {
+            local_brick = GF_CALLOC(1, sizeof(tier_brick_list_t),
+                                    gf_tier_mt_bricklist_t);
+            if (!local_brick) {
+                goto out;
+            }
 
-                ret = tier_compact_db_brick (local_brick,
-                                             &gfdb_brick_info);
-                if (ret) {
-                        gf_msg (args->this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_BRICK_QUERY_FAILED,
-                                "Brick %s compaction failed\n",
-                                local_brick->brick_db_path);
-                }
+            ret = dict_get_str(xl->options, "remote-subvolume", &rv);
+            if (ret < 0)
+                goto out;
 
-                gf_msg (args->this->name, GF_LOG_TRACE, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "End compaction for %s",
-                        local_brick->brick_name);
+            brickname = strrchr(rv, '/') + 1;
+            snprintf(db_name, sizeof(db_name), "%s.db", brickname);
 
-        }
-        ret = 0;
-out:
-        return ret;
-}
+            local_brick->brick_db_path = GF_MALLOC(PATH_MAX, gf_common_mt_char);
+            if (!local_brick->brick_db_path) {
+                gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_STATUS,
+                       "Failed to allocate memory for"
+                       " bricklist.");
+                ret = -1;
+                goto out;
+            }
 
-static int
-tier_compact (void *args)
-{
-        int ret = -1;
-        query_cbk_args_t query_cbk_args;
-        migration_args_t *compaction_args = args;
-
-        GF_VALIDATE_OR_GOTO ("tier", compaction_args->this, out);
-        GF_VALIDATE_OR_GOTO (compaction_args->this->name,
-                             compaction_args->brick_list, out);
-        GF_VALIDATE_OR_GOTO (compaction_args->this->name,
-                             compaction_args->defrag, out);
-
-        THIS = compaction_args->this;
-
-        query_cbk_args.this = compaction_args->this;
-        query_cbk_args.defrag = compaction_args->defrag;
-        query_cbk_args.is_compaction = 1;
-
-        /* Send the compaction pragma out to all the bricks on the bricklist. */
-        /* tier_get_bricklist ensures all bricks on the list are local to */
-        /* this node. */
-        ret = tier_send_compact (compaction_args, &query_cbk_args);
-        if (ret)
+            len = snprintf(local_brick->brick_db_path, PATH_MAX, "%s/%s/%s", rv,
+                           GF_HIDDEN_PATH, db_name);
+            if ((len < 0) || (len >= PATH_MAX)) {
+                gf_msg("tier", GF_LOG_ERROR, EINVAL, DHT_MSG_LOG_TIER_STATUS,
+                       "DB path too long");
+                ret = -1;
                 goto out;
+            }
 
-        ret = 0;
-out:
-        compaction_args->return_value = ret;
-        return ret;
- }
+            local_brick->xlator = xl;
 
-static int
-tier_get_bricklist (xlator_t *xl, struct list_head *local_bricklist_head)
-{
-        xlator_list_t           *child = NULL;
-        char                    *rv        = NULL;
-        char                    *rh        = NULL;
-        char                    *brickname = NULL;
-        char                    db_name[PATH_MAX] = "";
-        int                     ret = 0;
-        tier_brick_list_t       *local_brick = NULL;
-        int32_t                 len = 0;
-
-        GF_VALIDATE_OR_GOTO ("tier", xl, out);
-        GF_VALIDATE_OR_GOTO ("tier", local_bricklist_head, out);
+            snprintf(local_brick->brick_name, NAME_MAX, "%s", brickname);
 
-        /*
-         * This function obtains remote subvolumes and filters out only
-         * those running on the same node as the tier daemon.
-         */
-        if (strcmp(xl->type, "protocol/client") == 0) {
-                ret = dict_get_str (xl->options, "remote-host", &rh);
-                if (ret < 0)
-                        goto out;
-
-                if (gf_is_local_addr (rh)) {
-
-                       local_brick = GF_CALLOC (1, sizeof(tier_brick_list_t),
-                                                gf_tier_mt_bricklist_t);
-                        if (!local_brick) {
-                                goto out;
-                        }
-
-                        ret = dict_get_str (xl->options, "remote-subvolume",
-                                           &rv);
-                        if (ret < 0)
-                                goto out;
-
-                        brickname = strrchr(rv, '/') + 1;
-                        snprintf(db_name, sizeof(db_name), "%s.db",
-                                 brickname);
-
-                        local_brick->brick_db_path =
-                                GF_MALLOC (PATH_MAX, gf_common_mt_char);
-                        if (!local_brick->brick_db_path) {
-                                gf_msg ("tier", GF_LOG_ERROR, 0,
-                                        DHT_MSG_LOG_TIER_STATUS,
-                                        "Failed to allocate memory for"
-                                        " bricklist.");
-                                ret = -1;
-                                goto out;
-                        }
-
-                        len = snprintf(local_brick->brick_db_path,
-                                       PATH_MAX, "%s/%s/%s", rv,
-                                       GF_HIDDEN_PATH, db_name);
-                        if ((len < 0) || (len >= PATH_MAX)) {
-                                gf_msg ("tier", GF_LOG_ERROR, EINVAL,
-                                        DHT_MSG_LOG_TIER_STATUS,
-                                        "DB path too long");
-                                ret = -1;
-                                goto out;
-                        }
-
-                        local_brick->xlator = xl;
-
-                        snprintf (local_brick->brick_name,
-                                NAME_MAX, "%s", brickname);
-
-                        list_add_tail (&(local_brick->list),
-                                        local_bricklist_head);
-
-                        ret = 0;
-                        goto out;
-                }
+            list_add_tail(&(local_brick->list), local_bricklist_head);
+
+            ret = 0;
+            goto out;
         }
+    }
 
-        for (child = xl->children; child; child = child->next) {
-                ret = tier_get_bricklist (child->xlator, local_bricklist_head);
-                if (ret) {
-                        goto out;
-                }
+    for (child = xl->children; child; child = child->next) {
+        ret = tier_get_bricklist(child->xlator, local_bricklist_head);
+        if (ret) {
+            goto out;
         }
+    }
 
-        ret = 0;
+    ret = 0;
 out:
 
-        if (ret) {
-                if (local_brick) {
-                        GF_FREE (local_brick->brick_db_path);
-                }
-                GF_FREE (local_brick);
+    if (ret) {
+        if (local_brick) {
+            GF_FREE(local_brick->brick_db_path);
         }
+        GF_FREE(local_brick);
+    }
 
-        return ret;
+    return ret;
 }
 
 int
-tier_get_freq_demote (gf_tier_conf_t *tier_conf)
+tier_get_freq_demote(gf_tier_conf_t *tier_conf)
 {
-        if ((tier_conf->mode == TIER_MODE_WM) &&
-            (tier_conf->watermark_last == TIER_WM_HI))
-                return DEFAULT_DEMOTE_DEGRADED;
-        else
-                return tier_conf->tier_demote_frequency;
+    if ((tier_conf->mode == TIER_MODE_WM) &&
+        (tier_conf->watermark_last == TIER_WM_HI))
+        return DEFAULT_DEMOTE_DEGRADED;
+    else
+        return tier_conf->tier_demote_frequency;
 }
 
 int
-tier_get_freq_promote (gf_tier_conf_t *tier_conf)
+tier_get_freq_promote(gf_tier_conf_t *tier_conf)
 {
-        return tier_conf->tier_promote_frequency;
+    return tier_conf->tier_promote_frequency;
 }
 
 int
-tier_get_freq_compact_hot (gf_tier_conf_t *tier_conf)
+tier_get_freq_compact_hot(gf_tier_conf_t *tier_conf)
 {
-        return tier_conf->tier_compact_hot_frequency;
+    return tier_conf->tier_compact_hot_frequency;
 }
 
 int
-tier_get_freq_compact_cold (gf_tier_conf_t *tier_conf)
+tier_get_freq_compact_cold(gf_tier_conf_t *tier_conf)
 {
-        return tier_conf->tier_compact_cold_frequency;
+    return tier_conf->tier_compact_cold_frequency;
 }
 
 static int
-tier_check_demote (gfdb_time_t  current_time, int freq)
+tier_check_demote(gfdb_time_t current_time, int freq)
 {
-        return ((current_time.tv_sec % freq) == 0) ?
-                _gf_true : _gf_false;
+    return ((current_time.tv_sec % freq) == 0) ? _gf_true : _gf_false;
 }
 
 static gf_boolean_t
-tier_check_promote (gf_tier_conf_t   *tier_conf,
-                    gfdb_time_t  current_time,
-                    int freq)
+tier_check_promote(gf_tier_conf_t *tier_conf, gfdb_time_t current_time,
+                   int freq)
 {
-        if ((tier_conf->mode == TIER_MODE_WM) &&
-            (tier_conf->watermark_last == TIER_WM_HI))
-                return _gf_false;
+    if ((tier_conf->mode == TIER_MODE_WM) &&
+        (tier_conf->watermark_last == TIER_WM_HI))
+        return _gf_false;
 
-        else
-                return ((current_time.tv_sec % freq) == 0) ?
-                        _gf_true : _gf_false;
+    else
+        return ((current_time.tv_sec % freq) == 0) ? _gf_true : _gf_false;
 }
 
 static gf_boolean_t
-tier_check_compact (gf_tier_conf_t   *tier_conf,
-                    gfdb_time_t  current_time,
-                    int freq_compact)
+tier_check_compact(gf_tier_conf_t *tier_conf, gfdb_time_t current_time,
+                   int freq_compact)
 {
+    if (!(tier_conf->compact_active || tier_conf->compact_mode_switched))
+        return _gf_false;
 
-        if (!(tier_conf->compact_active ||
-              tier_conf->compact_mode_switched))
-                return _gf_false;
-
-
-        return ((current_time.tv_sec % freq_compact) == 0) ?
-                _gf_true : _gf_false;
+    return ((current_time.tv_sec % freq_compact) == 0) ? _gf_true : _gf_false;
 }
 
-
 void
-clear_bricklist (struct list_head *brick_list)
+clear_bricklist(struct list_head *brick_list)
 {
-        tier_brick_list_t  *local_brick      = NULL;
-        tier_brick_list_t  *temp             = NULL;
+    tier_brick_list_t *local_brick = NULL;
+    tier_brick_list_t *temp = NULL;
 
-        if (list_empty(brick_list)) {
-                return;
-        }
-
-        list_for_each_entry_safe (local_brick, temp, brick_list, list) {
-                list_del (&local_brick->list);
-                GF_FREE (local_brick->brick_db_path);
-                GF_FREE (local_brick);
-        }
+    if (list_empty(brick_list)) {
+        return;
+    }
+
+    list_for_each_entry_safe(local_brick, temp, brick_list, list)
+    {
+        list_del(&local_brick->list);
+        GF_FREE(local_brick->brick_db_path);
+        GF_FREE(local_brick);
+    }
 }
 
-
 static void
-set_brick_list_qpath (struct list_head *brick_list, gf_boolean_t is_cold)
+set_brick_list_qpath(struct list_head *brick_list, gf_boolean_t is_cold)
 {
-
-        tier_brick_list_t *local_brick = NULL;
-        int i                          = 0;
-
-        GF_VALIDATE_OR_GOTO ("tier", brick_list, out);
-
-        list_for_each_entry (local_brick, brick_list, list) {
-
-                /* Construct query file path for this brick
-                 * i.e
-                 * /var/run/gluster/xlator_name/
-                 * {promote/demote}-brickname-indexinbricklist
-                 * So that no two query files will have same path even
-                 * bricks have the same name
-                 * */
-                snprintf (local_brick->qfile_path, PATH_MAX , "%s-%s-%d",
-                        GET_QFILE_PATH (is_cold),
-                        local_brick->brick_name, i);
-                i++;
-        }
+    tier_brick_list_t *local_brick = NULL;
+    int i = 0;
+
+    GF_VALIDATE_OR_GOTO("tier", brick_list, out);
+
+    list_for_each_entry(local_brick, brick_list, list)
+    {
+        /* Construct query file path for this brick
+         * i.e
+         * /var/run/gluster/xlator_name/
+         * {promote/demote}-brickname-indexinbricklist
+         * So that no two query files will have same path even
+         * bricks have the same name
+         * */
+        snprintf(local_brick->qfile_path, PATH_MAX, "%s-%s-%d",
+                 GET_QFILE_PATH(is_cold), local_brick->brick_name, i);
+        i++;
+    }
 out:
-        return;
+    return;
 }
 
 static int
-tier_prepare_compact (migration_args_t *args, gfdb_time_t current_time)
+tier_prepare_compact(migration_args_t *args, gfdb_time_t current_time)
 {
-        xlator_t *this = NULL;
-        dht_conf_t *conf                        = NULL;
-        gf_defrag_info_t *defrag                = NULL;
-        gf_tier_conf_t *tier_conf               = NULL;
-        gf_boolean_t is_hot_tier = args->is_hot_tier;
-        int freq = 0;
-        int ret = -1;
-        const char *tier_type = is_hot_tier ? "hot" : "cold";
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    gf_tier_conf_t *tier_conf = NULL;
+    gf_boolean_t is_hot_tier = args->is_hot_tier;
+    int freq = 0;
+    int ret = -1;
+    const char *tier_type = is_hot_tier ? "hot" : "cold";
 
-        this = args->this;
+    this = args->this;
 
-        conf = this->private;
+    conf = this->private;
 
-        defrag = conf->defrag;
+    defrag = conf->defrag;
 
-        tier_conf = &defrag->tier_conf;
+    tier_conf = &defrag->tier_conf;
 
-        freq = is_hot_tier ? tier_get_freq_compact_hot (tier_conf) :
-                tier_get_freq_compact_cold (tier_conf);
+    freq = is_hot_tier ? tier_get_freq_compact_hot(tier_conf)
+                       : tier_get_freq_compact_cold(tier_conf);
 
-        defrag->tier_conf.compact_mode_switched = is_hot_tier ?
-                defrag->tier_conf.compact_mode_switched_hot :
-                defrag->tier_conf.compact_mode_switched_cold;
+    defrag->tier_conf.compact_mode_switched =
+        is_hot_tier ? defrag->tier_conf.compact_mode_switched_hot
+                    : defrag->tier_conf.compact_mode_switched_cold;
 
-        gf_msg(this->name, GF_LOG_TRACE, 0,
-               DHT_MSG_LOG_TIER_STATUS,
-               "Compact mode %i",
-               defrag->tier_conf.compact_mode_switched);
+    gf_msg(this->name, GF_LOG_TRACE, 0, DHT_MSG_LOG_TIER_STATUS,
+           "Compact mode %i", defrag->tier_conf.compact_mode_switched);
 
-        if (tier_check_compact (tier_conf, current_time,
-                                freq)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_STATUS,
-                        "Start compaction on %s tier",
-                        tier_type);
+    if (tier_check_compact(tier_conf, current_time, freq)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "Start compaction on %s tier", tier_type);
 
-                args->freq_time = freq;
-                ret = tier_compact (args);
-                if (ret) {
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR, "Compaction failed on "
-                                "%s tier", tier_type);
-                        goto out;
-                }
+        args->freq_time = freq;
+        ret = tier_compact(args);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "Compaction failed on "
+                   "%s tier",
+                   tier_type);
+            goto out;
+        }
 
-                gf_msg (this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
-                        "End compaction on %s tier", tier_type);
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+               "End compaction on %s tier", tier_type);
 
-                if (is_hot_tier) {
-                        defrag->tier_conf.compact_mode_switched_hot =
-                                _gf_false;
-                } else {
-                        defrag->tier_conf.compact_mode_switched_cold =
-                                _gf_false;
-                }
+        if (is_hot_tier) {
+            defrag->tier_conf.compact_mode_switched_hot = _gf_false;
+        } else {
+            defrag->tier_conf.compact_mode_switched_cold = _gf_false;
         }
+    }
 
 out:
-        return ret;
+    return ret;
 }
 
 static int
 tier_get_wm_interval(tier_mode_t mode, tier_watermark_op_t wm)
 {
-        if (mode == TIER_MODE_WM && wm == TIER_WM_HI)
-                return WM_INTERVAL_EMERG;
+    if (mode == TIER_MODE_WM && wm == TIER_WM_HI)
+        return WM_INTERVAL_EMERG;
 
-        return WM_INTERVAL;
+    return WM_INTERVAL;
 }
 
 /*
@@ -2402,941 +2226,863 @@ tier_get_wm_interval(tier_mode_t mode, tier_watermark_op_t wm)
  * 1. Check trigger to migrate data.
  * 2. Check for state changes (pause, unpause, stop).
  */
-static void
-*tier_run (void *in_args)
+static void *
+tier_run(void *in_args)
 {
-        dht_conf_t *conf                        = NULL;
-        gfdb_time_t  current_time               = { 0 };
-        int freq                                = 0;
-        int ret                                 = 0;
-        xlator_t *any                           = NULL;
-        xlator_t *xlator                        = NULL;
-        gf_tier_conf_t *tier_conf               = NULL;
-        loc_t root_loc                          = { 0 };
-        int check_watermark                     = 0;
-        gf_defrag_info_t *defrag                = NULL;
-        xlator_t  *this                         = NULL;
-        migration_args_t *args = in_args;
-        GF_VALIDATE_OR_GOTO ("tier", args, out);
-        GF_VALIDATE_OR_GOTO ("tier", args->brick_list, out);
-
-        this = args->this;
-        GF_VALIDATE_OR_GOTO ("tier", this, out);
-
-        conf   = this->private;
-        GF_VALIDATE_OR_GOTO ("tier", conf, out);
-
-        defrag = conf->defrag;
-        GF_VALIDATE_OR_GOTO ("tier", defrag, out);
+    dht_conf_t *conf = NULL;
+    gfdb_time_t current_time = {0};
+    int freq = 0;
+    int ret = 0;
+    xlator_t *any = NULL;
+    xlator_t *xlator = NULL;
+    gf_tier_conf_t *tier_conf = NULL;
+    loc_t root_loc = {0};
+    int check_watermark = 0;
+    gf_defrag_info_t *defrag = NULL;
+    xlator_t *this = NULL;
+    migration_args_t *args = in_args;
+    GF_VALIDATE_OR_GOTO("tier", args, out);
+    GF_VALIDATE_OR_GOTO("tier", args->brick_list, out);
+
+    this = args->this;
+    GF_VALIDATE_OR_GOTO("tier", this, out);
+
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO("tier", conf, out);
+
+    defrag = conf->defrag;
+    GF_VALIDATE_OR_GOTO("tier", defrag, out);
+
+    if (list_empty(args->brick_list)) {
+        gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Brick list for tier is empty. Exiting.");
+        goto out;
+    }
+
+    defrag->defrag_status = GF_DEFRAG_STATUS_STARTED;
+    tier_conf = &defrag->tier_conf;
+
+    dht_build_root_loc(defrag->root_inode, &root_loc);
+
+    while (1) {
+        /*
+         * Check if a graph switch occurred. If so, stop migration
+         * thread. It will need to be restarted manually.
+         */
+        any = THIS->ctx->active->first;
+        xlator = xlator_search_by_name(any, this->name);
 
-        if (list_empty (args->brick_list)) {
-                gf_msg (this->name, GF_LOG_INFO, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Brick list for tier is empty. Exiting.");
-                goto out;
+        if (xlator != this) {
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+                   "Detected graph switch. Exiting migration "
+                   "daemon.");
+            goto out;
         }
 
-        defrag->defrag_status = GF_DEFRAG_STATUS_STARTED;
-        tier_conf = &defrag->tier_conf;
-
-        dht_build_root_loc (defrag->root_inode, &root_loc);
+        gf_defrag_check_pause_tier(tier_conf);
 
-        while (1) {
+        sleep(1);
 
-                /*
-                 * Check if a graph switch occurred. If so, stop migration
-                 * thread. It will need to be restarted manually.
-                 */
-                any = THIS->ctx->active->first;
-                xlator = xlator_search_by_name (any, this->name);
-
-                if (xlator != this) {
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_LOG_TIER_STATUS,
-                                "Detected graph switch. Exiting migration "
-                                "daemon.");
-                        goto out;
-                }
+        if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
+            ret = 1;
+            gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "defrag->defrag_status != "
+                   "GF_DEFRAG_STATUS_STARTED");
+            goto out;
+        }
 
-                gf_defrag_check_pause_tier (tier_conf);
+        if (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
+            defrag->cmd == GF_DEFRAG_CMD_DETACH_START) {
+            ret = 0;
+            defrag->defrag_status = GF_DEFRAG_STATUS_COMPLETE;
+            gf_msg(this->name, GF_LOG_DEBUG, 0, DHT_MSG_LOG_TIER_ERROR,
+                   "defrag->defrag_cmd == "
+                   "GF_DEFRAG_CMD_START_DETACH_TIER");
+            goto out;
+        }
 
-                sleep(1);
+        if (gf_defrag_get_pause_state(&defrag->tier_conf) != TIER_RUNNING)
+            continue;
 
-                if (defrag->defrag_status != GF_DEFRAG_STATUS_STARTED) {
-                        ret = 1;
-                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                DHT_MSG_LOG_TIER_ERROR,
-                                "defrag->defrag_status != "
-                                "GF_DEFRAG_STATUS_STARTED");
-                        goto out;
+        /* To have proper synchronization amongst all
+         * brick holding nodes, so that promotion and demotions
+         * start atomically w.r.t promotion/demotion frequency
+         * period, all nodes should have their system time
+         * in-sync with each other either manually set or
+         * using a NTP server*/
+        ret = gettimeofday(&current_time, NULL);
+        if (ret == -1) {
+            gf_msg(this->name, GF_LOG_ERROR, errno,
+                   DHT_MSG_SYS_CALL_GET_TIME_FAILED,
+                   "Failed to get current time");
+            goto out;
+        }
+
+        check_watermark++;
+
+        /* emergency demotion requires frequent watermark monitoring */
+        if (check_watermark >=
+            tier_get_wm_interval(tier_conf->mode, tier_conf->watermark_last)) {
+            check_watermark = 0;
+            if (tier_conf->mode == TIER_MODE_WM) {
+                ret = tier_get_fs_stat(this, &root_loc);
+                if (ret != 0) {
+                    continue;
                 }
-
-                if (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER ||
-                    defrag->cmd == GF_DEFRAG_CMD_DETACH_START) {
-                        ret = 0;
-                        defrag->defrag_status =
-                                GF_DEFRAG_STATUS_COMPLETE;
-                        gf_msg (this->name, GF_LOG_DEBUG, 0,
-                                DHT_MSG_LOG_TIER_ERROR,
-                                "defrag->defrag_cmd == "
-                                "GF_DEFRAG_CMD_START_DETACH_TIER");
-                        goto out;
+                ret = tier_check_watermark(this);
+                if (ret != 0) {
+                    gf_msg(this->name, GF_LOG_CRITICAL, errno,
+                           DHT_MSG_LOG_TIER_ERROR, "Failed to get watermark");
+                    continue;
                 }
+            }
+        }
 
-                if (gf_defrag_get_pause_state (&defrag->tier_conf) !=
-                    TIER_RUNNING)
-                        continue;
-
-                /* To have proper synchronization amongst all
-                 * brick holding nodes, so that promotion and demotions
-                 * start atomically w.r.t promotion/demotion frequency
-                 * period, all nodes should have their system time
-                 * in-sync with each other either manually set or
-                 * using a NTP server*/
-                ret = gettimeofday (&current_time, NULL);
-                if (ret == -1) {
-                        gf_msg (this->name, GF_LOG_ERROR, errno,
-                                DHT_MSG_SYS_CALL_GET_TIME_FAILED,
-                                "Failed to get current time");
-                        goto out;
-                }
+        if (args->is_promotion) {
+            freq = tier_get_freq_promote(tier_conf);
 
-                check_watermark++;
-
-                /* emergency demotion requires frequent watermark monitoring */
-                if (check_watermark >=
-                        tier_get_wm_interval(tier_conf->mode,
-                                             tier_conf->watermark_last)) {
-                        check_watermark = 0;
-                        if (tier_conf->mode == TIER_MODE_WM) {
-                                ret = tier_get_fs_stat (this, &root_loc);
-                                if (ret != 0) {
-                                        continue;
-                                }
-                                ret = tier_check_watermark (this);
-                                if (ret != 0) {
-                                        gf_msg (this->name, GF_LOG_CRITICAL, errno,
-                                                DHT_MSG_LOG_TIER_ERROR,
-                                                "Failed to get watermark");
-                                        continue;
-                                }
-                        }
+            if (tier_check_promote(tier_conf, current_time, freq)) {
+                args->freq_time = freq;
+                ret = tier_promote(args);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                           "Promotion failed");
                 }
+            }
+        } else if (args->is_compaction) {
+            tier_prepare_compact(args, current_time);
+        } else {
+            freq = tier_get_freq_demote(tier_conf);
 
-                if (args->is_promotion) {
-                        freq = tier_get_freq_promote (tier_conf);
-
-                        if (tier_check_promote (tier_conf, current_time, freq)) {
-                                args->freq_time = freq;
-                                ret = tier_promote (args);
-                                if (ret) {
-                                        gf_msg (this->name, GF_LOG_ERROR, 0,
-                                                DHT_MSG_LOG_TIER_ERROR,
-                                                "Promotion failed");
-                                }
-                        }
-                } else if (args->is_compaction) {
-                        tier_prepare_compact (args, current_time);
-                } else {
-                        freq = tier_get_freq_demote (tier_conf);
-
-                        if (tier_check_demote (current_time, freq)) {
-                                args->freq_time = freq;
-                                ret = tier_demote (args);
-                                if (ret) {
-                                        gf_msg (this->name,
-                                                GF_LOG_ERROR,
-                                                0,
-                                                DHT_MSG_LOG_TIER_ERROR,
-                                                "Demotion failed");
-                                }
-                        }
+            if (tier_check_demote(current_time, freq)) {
+                args->freq_time = freq;
+                ret = tier_demote(args);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                           "Demotion failed");
                 }
-
-                /* Check the statfs immediately after the processing threads
-                   return */
-                check_watermark = WM_INTERVAL;
+            }
         }
 
-        ret = 0;
+        /* Check the statfs immediately after the processing threads
+           return */
+        check_watermark = WM_INTERVAL;
+    }
+
+    ret = 0;
 out:
 
-        args->return_value = ret;
+    args->return_value = ret;
 
-        return NULL;
+    return NULL;
 }
 
 int
-tier_start (xlator_t *this, gf_defrag_info_t *defrag)
+tier_start(xlator_t *this, gf_defrag_info_t *defrag)
 {
-        pthread_t promote_thread;
-        pthread_t demote_thread;
-        pthread_t hot_compact_thread;
-        pthread_t cold_compact_thread;
-        int ret = -1;
-        struct list_head bricklist_hot          = { 0 };
-        struct list_head bricklist_cold         = { 0 };
-        migration_args_t promotion_args         = { 0 };
-        migration_args_t demotion_args          = { 0 };
-        migration_args_t hot_compaction_args    = { 0 };
-        migration_args_t cold_compaction_args   = { 0 };
-        dht_conf_t *conf                        = NULL;
-
-        INIT_LIST_HEAD ((&bricklist_hot));
-        INIT_LIST_HEAD ((&bricklist_cold));
-
-        conf   = this->private;
-
-        tier_get_bricklist (conf->subvolumes[1], &bricklist_hot);
-        set_brick_list_qpath (&bricklist_hot, _gf_false);
-
-        demotion_args.this = this;
-        demotion_args.brick_list = &bricklist_hot;
-        demotion_args.defrag = defrag;
-        demotion_args.is_promotion = _gf_false;
-        demotion_args.is_compaction = _gf_false;
-
-        ret = gf_thread_create (&demote_thread,
-                                NULL, &tier_run, &demotion_args, "tierdem");
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to start demotion thread.");
-                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
-                goto cleanup;
-        }
-
-        tier_get_bricklist (conf->subvolumes[0], &bricklist_cold);
-        set_brick_list_qpath (&bricklist_cold, _gf_true);
-
-        promotion_args.this = this;
-        promotion_args.brick_list = &bricklist_cold;
-        promotion_args.defrag = defrag;
-        promotion_args.is_promotion = _gf_true;
-
-        ret = gf_thread_create (&promote_thread, NULL, &tier_run,
-                                &promotion_args, "tierpro");
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to start promotion thread.");
-                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
-                goto waitforspawned;
-        }
-
-        hot_compaction_args.this = this;
-        hot_compaction_args.brick_list = &bricklist_hot;
-        hot_compaction_args.defrag = defrag;
-        hot_compaction_args.is_promotion = _gf_false;
-        hot_compaction_args.is_compaction = _gf_true;
-        hot_compaction_args.is_hot_tier = _gf_true;
-
-        ret = gf_thread_create (&hot_compact_thread, NULL, &tier_run,
-                                &hot_compaction_args, "tierhcom");
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to start compaction thread.");
-                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
-                goto waitforspawnedpromote;
-        }
-
-        cold_compaction_args.this = this;
-        cold_compaction_args.brick_list = &bricklist_cold;
-        cold_compaction_args.defrag = defrag;
-        cold_compaction_args.is_promotion = _gf_false;
-        cold_compaction_args.is_compaction = _gf_true;
-        cold_compaction_args.is_hot_tier = _gf_false;
-
-        ret = gf_thread_create (&cold_compact_thread, NULL, &tier_run,
-                                &cold_compaction_args, "tierccom");
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Failed to start compaction thread.");
-                defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
-                goto waitforspawnedhotcompact;
-        }
-        pthread_join (cold_compact_thread, NULL);
+    pthread_t promote_thread;
+    pthread_t demote_thread;
+    pthread_t hot_compact_thread;
+    pthread_t cold_compact_thread;
+    int ret = -1;
+    struct list_head bricklist_hot = {0};
+    struct list_head bricklist_cold = {0};
+    migration_args_t promotion_args = {0};
+    migration_args_t demotion_args = {0};
+    migration_args_t hot_compaction_args = {0};
+    migration_args_t cold_compaction_args = {0};
+    dht_conf_t *conf = NULL;
+
+    INIT_LIST_HEAD((&bricklist_hot));
+    INIT_LIST_HEAD((&bricklist_cold));
+
+    conf = this->private;
+
+    tier_get_bricklist(conf->subvolumes[1], &bricklist_hot);
+    set_brick_list_qpath(&bricklist_hot, _gf_false);
+
+    demotion_args.this = this;
+    demotion_args.brick_list = &bricklist_hot;
+    demotion_args.defrag = defrag;
+    demotion_args.is_promotion = _gf_false;
+    demotion_args.is_compaction = _gf_false;
+
+    ret = gf_thread_create(&demote_thread, NULL, &tier_run, &demotion_args,
+                           "tierdem");
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to start demotion thread.");
+        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+        goto cleanup;
+    }
+
+    tier_get_bricklist(conf->subvolumes[0], &bricklist_cold);
+    set_brick_list_qpath(&bricklist_cold, _gf_true);
+
+    promotion_args.this = this;
+    promotion_args.brick_list = &bricklist_cold;
+    promotion_args.defrag = defrag;
+    promotion_args.is_promotion = _gf_true;
+
+    ret = gf_thread_create(&promote_thread, NULL, &tier_run, &promotion_args,
+                           "tierpro");
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to start promotion thread.");
+        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+        goto waitforspawned;
+    }
+
+    hot_compaction_args.this = this;
+    hot_compaction_args.brick_list = &bricklist_hot;
+    hot_compaction_args.defrag = defrag;
+    hot_compaction_args.is_promotion = _gf_false;
+    hot_compaction_args.is_compaction = _gf_true;
+    hot_compaction_args.is_hot_tier = _gf_true;
+
+    ret = gf_thread_create(&hot_compact_thread, NULL, &tier_run,
+                           &hot_compaction_args, "tierhcom");
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to start compaction thread.");
+        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+        goto waitforspawnedpromote;
+    }
+
+    cold_compaction_args.this = this;
+    cold_compaction_args.brick_list = &bricklist_cold;
+    cold_compaction_args.defrag = defrag;
+    cold_compaction_args.is_promotion = _gf_false;
+    cold_compaction_args.is_compaction = _gf_true;
+    cold_compaction_args.is_hot_tier = _gf_false;
+
+    ret = gf_thread_create(&cold_compact_thread, NULL, &tier_run,
+                           &cold_compaction_args, "tierccom");
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Failed to start compaction thread.");
+        defrag->defrag_status = GF_DEFRAG_STATUS_FAILED;
+        goto waitforspawnedhotcompact;
+    }
+    pthread_join(cold_compact_thread, NULL);
 
 waitforspawnedhotcompact:
-        pthread_join (hot_compact_thread, NULL);
+    pthread_join(hot_compact_thread, NULL);
 
 waitforspawnedpromote:
-        pthread_join (promote_thread, NULL);
+    pthread_join(promote_thread, NULL);
 
 waitforspawned:
-        pthread_join (demote_thread, NULL);
+    pthread_join(demote_thread, NULL);
 
 cleanup:
-        clear_bricklist (&bricklist_cold);
-        clear_bricklist (&bricklist_hot);
-        return ret;
+    clear_bricklist(&bricklist_cold);
+    clear_bricklist(&bricklist_hot);
+    return ret;
 }
 
 int32_t
-tier_migration_needed (xlator_t *this)
+tier_migration_needed(xlator_t *this)
 {
-        gf_defrag_info_t        *defrag = NULL;
-        dht_conf_t              *conf   = NULL;
-        int                      ret = 0;
+    gf_defrag_info_t *defrag = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = 0;
 
-        conf = this->private;
+    conf = this->private;
 
-        GF_VALIDATE_OR_GOTO (this->name, conf, out);
-        GF_VALIDATE_OR_GOTO (this->name, conf->defrag, out);
+    GF_VALIDATE_OR_GOTO(this->name, conf, out);
+    GF_VALIDATE_OR_GOTO(this->name, conf->defrag, out);
 
-        defrag = conf->defrag;
+    defrag = conf->defrag;
 
-        if ((defrag->cmd == GF_DEFRAG_CMD_START_TIER) ||
-            (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER))
-                ret = 1;
+    if ((defrag->cmd == GF_DEFRAG_CMD_START_TIER) ||
+        (defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER))
+        ret = 1;
 out:
-        return ret;
+    return ret;
 }
 
 int32_t
-tier_migration_get_dst (xlator_t *this, dht_local_t *local)
+tier_migration_get_dst(xlator_t *this, dht_local_t *local)
 {
-        dht_conf_t              *conf   = NULL;
-        int32_t                  ret = -1;
-        gf_defrag_info_t        *defrag = NULL;
+    dht_conf_t *conf = NULL;
+    int32_t ret = -1;
+    gf_defrag_info_t *defrag = NULL;
 
-        GF_VALIDATE_OR_GOTO ("tier", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, this->private, out);
+    GF_VALIDATE_OR_GOTO("tier", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, this->private, out);
 
-        conf = this->private;
+    conf = this->private;
 
-        defrag = conf->defrag;
+    defrag = conf->defrag;
 
-        if (defrag && defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER) {
-                local->rebalance.target_node = conf->subvolumes[0];
+    if (defrag && defrag->cmd == GF_DEFRAG_CMD_START_DETACH_TIER) {
+        local->rebalance.target_node = conf->subvolumes[0];
 
-        } else if (conf->subvolumes[0] == local->cached_subvol)
-                local->rebalance.target_node =
-                        conf->subvolumes[1];
-        else
-                local->rebalance.target_node =
-                        conf->subvolumes[0];
+    } else if (conf->subvolumes[0] == local->cached_subvol)
+        local->rebalance.target_node = conf->subvolumes[1];
+    else
+        local->rebalance.target_node = conf->subvolumes[0];
 
-        if (local->rebalance.target_node)
-                ret = 0;
+    if (local->rebalance.target_node)
+        ret = 0;
 
 out:
-        return ret;
+    return ret;
 }
 
 xlator_t *
-tier_search (xlator_t *this, dht_layout_t *layout, const char *name)
+tier_search(xlator_t *this, dht_layout_t *layout, const char *name)
 {
-        xlator_t                *subvol = NULL;
-        dht_conf_t              *conf   = NULL;
+    xlator_t *subvol = NULL;
+    dht_conf_t *conf = NULL;
 
-        GF_VALIDATE_OR_GOTO ("tier", this, out);
-        GF_VALIDATE_OR_GOTO (this->name, this->private, out);
+    GF_VALIDATE_OR_GOTO("tier", this, out);
+    GF_VALIDATE_OR_GOTO(this->name, this->private, out);
 
-        conf = this->private;
+    conf = this->private;
 
-        subvol = TIER_HASHED_SUBVOL;
+    subvol = TIER_HASHED_SUBVOL;
 
- out:
-        return subvol;
+out:
+    return subvol;
 }
 
-
 static int
-tier_load_externals (xlator_t *this)
+tier_load_externals(xlator_t *this)
 {
-        int               ret            = -1;
-        char *libpathfull = (LIBDIR "/libgfdb.so.0");
-        get_gfdb_methods_t get_gfdb_methods;
+    int ret = -1;
+    char *libpathfull = (LIBDIR "/libgfdb.so.0");
+    get_gfdb_methods_t get_gfdb_methods;
 
-        GF_VALIDATE_OR_GOTO ("this", this, out);
+    GF_VALIDATE_OR_GOTO("this", this, out);
 
-        libhandle = dlopen (libpathfull, RTLD_NOW);
-        if (!libhandle) {
-                gf_msg(this->name, GF_LOG_ERROR, 0,
-                       DHT_MSG_LOG_TIER_ERROR,
-                       "Error loading libgfdb.so %s\n", dlerror());
-                ret = -1;
-                goto out;
-        }
+    libhandle = dlopen(libpathfull, RTLD_NOW);
+    if (!libhandle) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Error loading libgfdb.so %s\n", dlerror());
+        ret = -1;
+        goto out;
+    }
 
-        get_gfdb_methods = dlsym (libhandle, "get_gfdb_methods");
-        if (!get_gfdb_methods) {
-                gf_msg(this->name, GF_LOG_ERROR, 0,
-                       DHT_MSG_LOG_TIER_ERROR,
-                       "Error loading get_gfdb_methods()");
-                ret = -1;
-                goto out;
-        }
+    get_gfdb_methods = dlsym(libhandle, "get_gfdb_methods");
+    if (!get_gfdb_methods) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Error loading get_gfdb_methods()");
+        ret = -1;
+        goto out;
+    }
 
-        get_gfdb_methods (&gfdb_methods);
+    get_gfdb_methods(&gfdb_methods);
 
-        ret = 0;
+    ret = 0;
 
 out:
-        if (ret && libhandle)
-                dlclose (libhandle);
+    if (ret && libhandle)
+        dlclose(libhandle);
 
-        return ret;
+    return ret;
 }
 
 static tier_mode_t
-tier_validate_mode (char *mode)
+tier_validate_mode(char *mode)
 {
-        int ret = -1;
+    int ret = -1;
 
-        if (strcmp (mode, "test") == 0) {
-                ret = TIER_MODE_TEST;
-        } else {
-                ret = TIER_MODE_WM;
-        }
+    if (strcmp(mode, "test") == 0) {
+        ret = TIER_MODE_TEST;
+    } else {
+        ret = TIER_MODE_WM;
+    }
 
-        return ret;
+    return ret;
 }
 
 static gf_boolean_t
-tier_validate_compact_mode (char *mode)
+tier_validate_compact_mode(char *mode)
 {
-        gf_boolean_t ret = _gf_false;
+    gf_boolean_t ret = _gf_false;
 
-        gf_msg ("tier", GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
-                "tier_validate_compact_mode: mode = %s", mode);
+    gf_msg("tier", GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+           "tier_validate_compact_mode: mode = %s", mode);
 
-        if (!strcmp (mode, "on")) {
-                ret = _gf_true;
-        } else {
-                ret = _gf_false;
-        }
+    if (!strcmp(mode, "on")) {
+        ret = _gf_true;
+    } else {
+        ret = _gf_false;
+    }
 
-        gf_msg ("tier", GF_LOG_ERROR, 0,
-                DHT_MSG_LOG_TIER_STATUS,
-                "tier_validate_compact_mode: ret = %i", ret);
+    gf_msg("tier", GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_STATUS,
+           "tier_validate_compact_mode: ret = %i", ret);
 
-        return ret;
+    return ret;
 }
 
 int
-tier_init_methods (xlator_t *this)
+tier_init_methods(xlator_t *this)
 {
-        int ret                  = -1;
-        dht_conf_t      *conf    = NULL;
-        dht_methods_t   *methods = NULL;
+    int ret = -1;
+    dht_conf_t *conf = NULL;
+    dht_methods_t *methods = NULL;
 
-        GF_VALIDATE_OR_GOTO ("tier", this, err);
+    GF_VALIDATE_OR_GOTO("tier", this, err);
 
-        conf = this->private;
+    conf = this->private;
 
-        methods = &(conf->methods);
+    methods = &(conf->methods);
 
-        methods->migration_get_dst_subvol = tier_migration_get_dst;
-        methods->migration_other   = tier_start;
-        methods->migration_needed  = tier_migration_needed;
-        methods->layout_search     = tier_search;
+    methods->migration_get_dst_subvol = tier_migration_get_dst;
+    methods->migration_other = tier_start;
+    methods->migration_needed = tier_migration_needed;
+    methods->layout_search = tier_search;
 
-        ret = 0;
+    ret = 0;
 err:
-        return ret;
+    return ret;
 }
 
-
 static void
-tier_save_vol_name (xlator_t *this)
+tier_save_vol_name(xlator_t *this)
 {
-        dht_conf_t       *conf           = NULL;
-        gf_defrag_info_t *defrag         = NULL;
-        char             *suffix         = NULL;
-        int               name_len       = 0;
-
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    char *suffix = NULL;
+    int name_len = 0;
 
-        conf = this->private;
-        defrag = conf->defrag;
+    conf = this->private;
+    defrag = conf->defrag;
 
-        suffix = strstr (this->name, "-tier-dht");
+    suffix = strstr(this->name, "-tier-dht");
 
-        if (suffix)
-                name_len = suffix - this->name;
-        else
-                name_len = strlen (this->name);
+    if (suffix)
+        name_len = suffix - this->name;
+    else
+        name_len = strlen(this->name);
 
-        if (name_len > GD_VOLUME_NAME_MAX)
-                name_len = GD_VOLUME_NAME_MAX;
+    if (name_len > GD_VOLUME_NAME_MAX)
+        name_len = GD_VOLUME_NAME_MAX;
 
-        strncpy (defrag->tier_conf.volname, this->name, name_len);
-        defrag->tier_conf.volname[name_len] = 0;
+    strncpy(defrag->tier_conf.volname, this->name, name_len);
+    defrag->tier_conf.volname[name_len] = 0;
 }
 
 int
-tier_init (xlator_t *this)
+tier_init(xlator_t *this)
 {
-        int               ret            = -1;
-        int               freq           = 0;
-        int               maxsize        = 0;
-        dht_conf_t       *conf           = NULL;
-        gf_defrag_info_t *defrag         = NULL;
-        char             *voldir         = NULL;
-        char             *mode           = NULL;
-        char             *paused         = NULL;
-        tier_mode_t	  tier_mode	 = DEFAULT_TIER_MODE;
-        gf_boolean_t	  compact_mode	 = _gf_false;
-
-        ret = dht_init (this);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "tier_init failed");
-                goto out;
-        }
-
-        conf = this->private;
-
-        ret = tier_init_methods (this);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "tier_init_methods failed");
-                goto out;
-        }
-
-        if (conf->subvolume_cnt != 2) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        DHT_MSG_LOG_TIER_ERROR,
-                        "Invalid number of subvolumes %d", conf->subvolume_cnt);
-                goto out;
-        }
-
-        /* if instatiated from client side initialization is complete. */
-        if (!conf->defrag) {
-                ret = 0;
-                goto out;
-        }
+    int ret = -1;
+    int freq = 0;
+    int maxsize = 0;
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    char *voldir = NULL;
+    char *mode = NULL;
+    char *paused = NULL;
+    tier_mode_t tier_mode = DEFAULT_TIER_MODE;
+    gf_boolean_t compact_mode = _gf_false;
+
+    ret = dht_init(this);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "tier_init failed");
+        goto out;
+    }
+
+    conf = this->private;
+
+    ret = tier_init_methods(this);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "tier_init_methods failed");
+        goto out;
+    }
+
+    if (conf->subvolume_cnt != 2) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Invalid number of subvolumes %d", conf->subvolume_cnt);
+        goto out;
+    }
+
+    /* if instatiated from client side initialization is complete. */
+    if (!conf->defrag) {
+        ret = 0;
+        goto out;
+    }
 
-        /* if instatiated from server side, load db libraries */
-        ret = tier_load_externals (this);
-        if (ret) {
-                gf_msg(this->name, GF_LOG_ERROR, 0,
-                       DHT_MSG_LOG_TIER_ERROR,
-                       "Could not load externals. Aborting");
-                goto out;
-        }
+    /* if instatiated from server side, load db libraries */
+    ret = tier_load_externals(this);
+    if (ret) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "Could not load externals. Aborting");
+        goto out;
+    }
 
-        defrag = conf->defrag;
+    defrag = conf->defrag;
 
-        defrag->tier_conf.last_demote_qfile_index = 0;
-        defrag->tier_conf.last_promote_qfile_index = 0;
+    defrag->tier_conf.last_demote_qfile_index = 0;
+    defrag->tier_conf.last_promote_qfile_index = 0;
 
-        defrag->tier_conf.is_tier = 1;
-        defrag->this = this;
+    defrag->tier_conf.is_tier = 1;
+    defrag->this = this;
 
-        ret = dict_get_int32 (this->options,
-                              "tier-max-promote-file-size", &maxsize);
-        if (ret) {
-                maxsize = 0;
-        }
+    ret = dict_get_int32(this->options, "tier-max-promote-file-size", &maxsize);
+    if (ret) {
+        maxsize = 0;
+    }
 
-        defrag->tier_conf.tier_max_promote_size = maxsize;
+    defrag->tier_conf.tier_max_promote_size = maxsize;
 
-        ret = dict_get_int32 (this->options,
-                              "tier-promote-frequency", &freq);
-        if (ret) {
-                freq = DEFAULT_PROMOTE_FREQ_SEC;
-        }
+    ret = dict_get_int32(this->options, "tier-promote-frequency", &freq);
+    if (ret) {
+        freq = DEFAULT_PROMOTE_FREQ_SEC;
+    }
 
-        defrag->tier_conf.tier_promote_frequency = freq;
+    defrag->tier_conf.tier_promote_frequency = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "tier-demote-frequency", &freq);
-        if (ret) {
-                freq = DEFAULT_DEMOTE_FREQ_SEC;
-        }
+    ret = dict_get_int32(this->options, "tier-demote-frequency", &freq);
+    if (ret) {
+        freq = DEFAULT_DEMOTE_FREQ_SEC;
+    }
 
-        defrag->tier_conf.tier_demote_frequency = freq;
+    defrag->tier_conf.tier_demote_frequency = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "tier-hot-compact-frequency", &freq);
-        if (ret) {
-                freq = DEFAULT_HOT_COMPACT_FREQ_SEC;
-        }
+    ret = dict_get_int32(this->options, "tier-hot-compact-frequency", &freq);
+    if (ret) {
+        freq = DEFAULT_HOT_COMPACT_FREQ_SEC;
+    }
 
-        defrag->tier_conf.tier_compact_hot_frequency = freq;
+    defrag->tier_conf.tier_compact_hot_frequency = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "tier-cold-compact-frequency", &freq);
-        if (ret) {
-                freq = DEFAULT_COLD_COMPACT_FREQ_SEC;
-        }
+    ret = dict_get_int32(this->options, "tier-cold-compact-frequency", &freq);
+    if (ret) {
+        freq = DEFAULT_COLD_COMPACT_FREQ_SEC;
+    }
 
-        defrag->tier_conf.tier_compact_cold_frequency = freq;
+    defrag->tier_conf.tier_compact_cold_frequency = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "watermark-hi", &freq);
-        if (ret) {
-                freq = DEFAULT_WM_HI;
-        }
+    ret = dict_get_int32(this->options, "watermark-hi", &freq);
+    if (ret) {
+        freq = DEFAULT_WM_HI;
+    }
 
-        defrag->tier_conf.watermark_hi = freq;
+    defrag->tier_conf.watermark_hi = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "watermark-low", &freq);
-        if (ret) {
-                freq = DEFAULT_WM_LOW;
-        }
+    ret = dict_get_int32(this->options, "watermark-low", &freq);
+    if (ret) {
+        freq = DEFAULT_WM_LOW;
+    }
 
-        defrag->tier_conf.watermark_low = freq;
+    defrag->tier_conf.watermark_low = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "write-freq-threshold", &freq);
-        if (ret) {
-                freq = DEFAULT_WRITE_FREQ_SEC;
-        }
+    ret = dict_get_int32(this->options, "write-freq-threshold", &freq);
+    if (ret) {
+        freq = DEFAULT_WRITE_FREQ_SEC;
+    }
 
-        defrag->write_freq_threshold = freq;
+    defrag->write_freq_threshold = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "read-freq-threshold", &freq);
-        if (ret) {
-                freq = DEFAULT_READ_FREQ_SEC;
-        }
+    ret = dict_get_int32(this->options, "read-freq-threshold", &freq);
+    if (ret) {
+        freq = DEFAULT_READ_FREQ_SEC;
+    }
 
-        defrag->read_freq_threshold = freq;
+    defrag->read_freq_threshold = freq;
 
-        ret = dict_get_int32 (this->options,
-                              "tier-max-mb", &freq);
-        if (ret) {
-                freq = DEFAULT_TIER_MAX_MIGRATE_MB;
-        }
+    ret = dict_get_int32(this->options, "tier-max-mb", &freq);
+    if (ret) {
+        freq = DEFAULT_TIER_MAX_MIGRATE_MB;
+    }
 
-        defrag->tier_conf.max_migrate_bytes = (uint64_t) freq * 1024 * 1024;
+    defrag->tier_conf.max_migrate_bytes = (uint64_t)freq * 1024 * 1024;
 
-        ret = dict_get_int32 (this->options,
-                              "tier-max-files", &freq);
-        if (ret) {
-                freq = DEFAULT_TIER_MAX_MIGRATE_FILES;
-        }
+    ret = dict_get_int32(this->options, "tier-max-files", &freq);
+    if (ret) {
+        freq = DEFAULT_TIER_MAX_MIGRATE_FILES;
+    }
 
-        defrag->tier_conf.max_migrate_files = freq;
+    defrag->tier_conf.max_migrate_files = freq;
 
+    ret = dict_get_int32(this->options, "tier-query-limit",
+                         &(defrag->tier_conf.query_limit));
+    if (ret) {
+        defrag->tier_conf.query_limit = DEFAULT_TIER_QUERY_LIMIT;
+    }
 
-        ret = dict_get_int32 (this->options,
-                              "tier-query-limit",
-                              &(defrag->tier_conf.query_limit));
-        if (ret) {
-                defrag->tier_conf.query_limit =
-                        DEFAULT_TIER_QUERY_LIMIT;
-        }
+    ret = dict_get_str(this->options, "tier-compact", &mode);
 
-        ret = dict_get_str (this->options,
-                            "tier-compact", &mode);
-
-        if (ret) {
-                defrag->tier_conf.compact_active = DEFAULT_COMP_MODE;
-        } else {
-                compact_mode = tier_validate_compact_mode (mode);
-                /* If compaction is now active, we need to inform the bricks on
-                   the hot and cold tier of this. See dht-common.h for more. */
-                defrag->tier_conf.compact_active = compact_mode;
-                if (compact_mode) {
-                        defrag->tier_conf.compact_mode_switched_hot = _gf_true;
-                        defrag->tier_conf.compact_mode_switched_cold = _gf_true;
-                }
+    if (ret) {
+        defrag->tier_conf.compact_active = DEFAULT_COMP_MODE;
+    } else {
+        compact_mode = tier_validate_compact_mode(mode);
+        /* If compaction is now active, we need to inform the bricks on
+           the hot and cold tier of this. See dht-common.h for more. */
+        defrag->tier_conf.compact_active = compact_mode;
+        if (compact_mode) {
+            defrag->tier_conf.compact_mode_switched_hot = _gf_true;
+            defrag->tier_conf.compact_mode_switched_cold = _gf_true;
         }
+    }
 
-        ret = dict_get_str (this->options,
-                            "tier-mode", &mode);
-        if (ret) {
-                defrag->tier_conf.mode = DEFAULT_TIER_MODE;
-        } else {
-                tier_mode = tier_validate_mode (mode);
-                defrag->tier_conf.mode = tier_mode;
-        }
+    ret = dict_get_str(this->options, "tier-mode", &mode);
+    if (ret) {
+        defrag->tier_conf.mode = DEFAULT_TIER_MODE;
+    } else {
+        tier_mode = tier_validate_mode(mode);
+        defrag->tier_conf.mode = tier_mode;
+    }
 
-        pthread_mutex_init (&defrag->tier_conf.pause_mutex, 0);
+    pthread_mutex_init(&defrag->tier_conf.pause_mutex, 0);
 
-        gf_defrag_set_pause_state (&defrag->tier_conf, TIER_RUNNING);
+    gf_defrag_set_pause_state(&defrag->tier_conf, TIER_RUNNING);
 
-        ret = dict_get_str (this->options,
-                              "tier-pause", &paused);
+    ret = dict_get_str(this->options, "tier-pause", &paused);
 
-        if (paused && strcmp (paused, "on") == 0)
-                gf_defrag_set_pause_state (&defrag->tier_conf,
-                                           TIER_REQUEST_PAUSE);
+    if (paused && strcmp(paused, "on") == 0)
+        gf_defrag_set_pause_state(&defrag->tier_conf, TIER_REQUEST_PAUSE);
 
-        ret = gf_asprintf(&voldir, "%s/%s",
-                          DEFAULT_VAR_RUN_DIRECTORY,
-                          this->name);
-        if (ret < 0)
-                goto out;
+    ret = gf_asprintf(&voldir, "%s/%s", DEFAULT_VAR_RUN_DIRECTORY, this->name);
+    if (ret < 0)
+        goto out;
 
-        ret = mkdir_p(voldir, 0777, _gf_true);
-        if (ret == -1 && errno != EEXIST) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                       DHT_MSG_LOG_TIER_ERROR,
-                       "tier_init failed");
-
-                GF_FREE(voldir);
-                goto out;
-        }
+    ret = mkdir_p(voldir, 0777, _gf_true);
+    if (ret == -1 && errno != EEXIST) {
+        gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+               "tier_init failed");
 
         GF_FREE(voldir);
+        goto out;
+    }
 
-        ret = gf_asprintf (&promotion_qfile, "%s/%s/promote",
-                           DEFAULT_VAR_RUN_DIRECTORY,
-                           this->name);
-        if (ret < 0)
-                goto out;
+    GF_FREE(voldir);
 
-        ret = gf_asprintf (&demotion_qfile, "%s/%s/demote",
-                           DEFAULT_VAR_RUN_DIRECTORY,
-                           this->name);
-        if (ret < 0) {
-                GF_FREE (promotion_qfile);
-                goto out;
-        }
+    ret = gf_asprintf(&promotion_qfile, "%s/%s/promote",
+                      DEFAULT_VAR_RUN_DIRECTORY, this->name);
+    if (ret < 0)
+        goto out;
 
-        gf_msg (this->name, GF_LOG_INFO, 0,
-                DHT_MSG_LOG_TIER_STATUS,
-               "Promote/demote frequency %d/%d "
-               "Write/Read freq thresholds %d/%d",
-               defrag->tier_conf.tier_promote_frequency,
-               defrag->tier_conf.tier_demote_frequency,
-               defrag->write_freq_threshold,
-               defrag->read_freq_threshold);
+    ret = gf_asprintf(&demotion_qfile, "%s/%s/demote",
+                      DEFAULT_VAR_RUN_DIRECTORY, this->name);
+    if (ret < 0) {
+        GF_FREE(promotion_qfile);
+        goto out;
+    }
 
-        tier_save_vol_name (this);
+    gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+           "Promote/demote frequency %d/%d "
+           "Write/Read freq thresholds %d/%d",
+           defrag->tier_conf.tier_promote_frequency,
+           defrag->tier_conf.tier_demote_frequency,
+           defrag->write_freq_threshold, defrag->read_freq_threshold);
 
-        ret = 0;
+    tier_save_vol_name(this);
+
+    ret = 0;
 
 out:
 
-        return ret;
+    return ret;
 }
 
 int
-tier_cli_pause_done (int op_ret, call_frame_t *sync_frame, void *data)
+tier_cli_pause_done(int op_ret, call_frame_t *sync_frame, void *data)
 {
-        gf_msg ("tier", GF_LOG_INFO, 0,
-                DHT_MSG_TIER_PAUSED,
-                "Migrate file paused with op_ret %d", op_ret);
+    gf_msg("tier", GF_LOG_INFO, 0, DHT_MSG_TIER_PAUSED,
+           "Migrate file paused with op_ret %d", op_ret);
 
-        return op_ret;
+    return op_ret;
 }
 
 int
-tier_cli_pause (void *data)
+tier_cli_pause(void *data)
 {
-        gf_defrag_info_t        *defrag         = NULL;
-        xlator_t                *this           = NULL;
-        dht_conf_t              *conf           = NULL;
-        int                      ret            = -1;
+    gf_defrag_info_t *defrag = NULL;
+    xlator_t *this = NULL;
+    dht_conf_t *conf = NULL;
+    int ret = -1;
 
-        this = data;
+    this = data;
 
-        conf = this->private;
-        GF_VALIDATE_OR_GOTO (this->name, conf, exit);
+    conf = this->private;
+    GF_VALIDATE_OR_GOTO(this->name, conf, exit);
 
-        defrag = conf->defrag;
-        GF_VALIDATE_OR_GOTO (this->name, defrag, exit);
+    defrag = conf->defrag;
+    GF_VALIDATE_OR_GOTO(this->name, defrag, exit);
 
-        gf_defrag_pause_tier (this, defrag);
+    gf_defrag_pause_tier(this, defrag);
 
-        ret = 0;
+    ret = 0;
 exit:
-        return ret;
+    return ret;
 }
 
 int
-tier_reconfigure (xlator_t *this, dict_t *options)
+tier_reconfigure(xlator_t *this, dict_t *options)
 {
-        dht_conf_t       *conf            = NULL;
-        gf_defrag_info_t *defrag          = NULL;
-        char             *mode            = NULL;
-        int               migrate_mb      = 0;
-        gf_boolean_t      req_pause       = _gf_false;
-        int               ret             = 0;
-        call_frame_t            *frame    = NULL;
-        gf_boolean_t last_compact_setting = _gf_false;
-
-        conf = this->private;
-
-        if (conf->defrag) {
-                defrag = conf->defrag;
-                GF_OPTION_RECONF ("tier-max-promote-file-size",
-                                  defrag->tier_conf.tier_max_promote_size,
-                                  options, int32, out);
-
-                GF_OPTION_RECONF ("tier-promote-frequency",
-                                  defrag->tier_conf.tier_promote_frequency,
-                                  options, int32, out);
-
-                GF_OPTION_RECONF ("tier-demote-frequency",
-                                  defrag->tier_conf.tier_demote_frequency,
-                                  options, int32, out);
-
-                GF_OPTION_RECONF ("write-freq-threshold",
-                                  defrag->write_freq_threshold, options,
-                                  int32, out);
-
-                GF_OPTION_RECONF ("read-freq-threshold",
-                                  defrag->read_freq_threshold, options,
-                                  int32, out);
-
-                GF_OPTION_RECONF ("watermark-hi",
-                                  defrag->tier_conf.watermark_hi, options,
-                                  int32, out);
-
-                GF_OPTION_RECONF ("watermark-low",
-                                  defrag->tier_conf.watermark_low, options,
-                                  int32, out);
-
-                last_compact_setting = defrag->tier_conf.compact_active;
-
-                GF_OPTION_RECONF ("tier-compact",
-                                  defrag->tier_conf.compact_active, options,
-                                  bool, out);
-
-                if (last_compact_setting != defrag->tier_conf.compact_active) {
-                        defrag->tier_conf.compact_mode_switched_hot = _gf_true;
-                        defrag->tier_conf.compact_mode_switched_cold = _gf_true;
-                        gf_msg (this->name, GF_LOG_INFO, 0,
-                                DHT_MSG_LOG_TIER_STATUS,
-                                "compact mode switched");
-                }
+    dht_conf_t *conf = NULL;
+    gf_defrag_info_t *defrag = NULL;
+    char *mode = NULL;
+    int migrate_mb = 0;
+    gf_boolean_t req_pause = _gf_false;
+    int ret = 0;
+    call_frame_t *frame = NULL;
+    gf_boolean_t last_compact_setting = _gf_false;
+
+    conf = this->private;
+
+    if (conf->defrag) {
+        defrag = conf->defrag;
+        GF_OPTION_RECONF("tier-max-promote-file-size",
+                         defrag->tier_conf.tier_max_promote_size, options,
+                         int32, out);
 
-                GF_OPTION_RECONF ("tier-hot-compact-frequency",
-                                  defrag->tier_conf.tier_compact_hot_frequency,
-                                  options, int32, out);
-
-                GF_OPTION_RECONF ("tier-cold-compact-frequency",
-                                  defrag->tier_conf.tier_compact_cold_frequency,
-                                  options, int32, out);
-
-                GF_OPTION_RECONF ("tier-mode",
-                                  mode, options,
-                                  str, out);
-                defrag->tier_conf.mode = tier_validate_mode (mode);
-
-                GF_OPTION_RECONF ("tier-max-mb",
-                                  migrate_mb, options,
-                                  int32, out);
-                defrag->tier_conf.max_migrate_bytes = (uint64_t) migrate_mb *
-                                                        1024 * 1024;
-
-                GF_OPTION_RECONF ("tier-max-files",
-                                  defrag->tier_conf.max_migrate_files, options,
-                                  int32, out);
-
-                GF_OPTION_RECONF ("tier-query-limit",
-                                  defrag->tier_conf.query_limit,
-                                  options, int32, out);
-
-                GF_OPTION_RECONF ("tier-pause",
-                                  req_pause, options,
-                                  bool, out);
-
-                if (req_pause == _gf_true) {
-
-                        frame = create_frame (this, this->ctx->pool);
-                        if (!frame)
-                                goto out;
-
-                        frame->root->pid = GF_CLIENT_PID_DEFRAG;
-
-                        ret = synctask_new (this->ctx->env, tier_cli_pause,
-                                            tier_cli_pause_done, frame, this);
-
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_LOG_TIER_ERROR,
-                                        "pause tier failed on reconfigure");
-                        }
-                } else {
-                        ret = gf_defrag_resume_tier (this, defrag);
-                        if (ret) {
-                                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                        DHT_MSG_LOG_TIER_ERROR,
-                                        "resume tier failed on reconfigure");
-                        }
-                }
+        GF_OPTION_RECONF("tier-promote-frequency",
+                         defrag->tier_conf.tier_promote_frequency, options,
+                         int32, out);
+
+        GF_OPTION_RECONF("tier-demote-frequency",
+                         defrag->tier_conf.tier_demote_frequency, options,
+                         int32, out);
+
+        GF_OPTION_RECONF("write-freq-threshold", defrag->write_freq_threshold,
+                         options, int32, out);
+
+        GF_OPTION_RECONF("read-freq-threshold", defrag->read_freq_threshold,
+                         options, int32, out);
+
+        GF_OPTION_RECONF("watermark-hi", defrag->tier_conf.watermark_hi,
+                         options, int32, out);
 
+        GF_OPTION_RECONF("watermark-low", defrag->tier_conf.watermark_low,
+                         options, int32, out);
+
+        last_compact_setting = defrag->tier_conf.compact_active;
+
+        GF_OPTION_RECONF("tier-compact", defrag->tier_conf.compact_active,
+                         options, bool, out);
+
+        if (last_compact_setting != defrag->tier_conf.compact_active) {
+            defrag->tier_conf.compact_mode_switched_hot = _gf_true;
+            defrag->tier_conf.compact_mode_switched_cold = _gf_true;
+            gf_msg(this->name, GF_LOG_INFO, 0, DHT_MSG_LOG_TIER_STATUS,
+                   "compact mode switched");
         }
 
+        GF_OPTION_RECONF("tier-hot-compact-frequency",
+                         defrag->tier_conf.tier_compact_hot_frequency, options,
+                         int32, out);
+
+        GF_OPTION_RECONF("tier-cold-compact-frequency",
+                         defrag->tier_conf.tier_compact_cold_frequency, options,
+                         int32, out);
+
+        GF_OPTION_RECONF("tier-mode", mode, options, str, out);
+        defrag->tier_conf.mode = tier_validate_mode(mode);
+
+        GF_OPTION_RECONF("tier-max-mb", migrate_mb, options, int32, out);
+        defrag->tier_conf.max_migrate_bytes = (uint64_t)migrate_mb * 1024 *
+                                              1024;
+
+        GF_OPTION_RECONF("tier-max-files", defrag->tier_conf.max_migrate_files,
+                         options, int32, out);
+
+        GF_OPTION_RECONF("tier-query-limit", defrag->tier_conf.query_limit,
+                         options, int32, out);
+
+        GF_OPTION_RECONF("tier-pause", req_pause, options, bool, out);
+
+        if (req_pause == _gf_true) {
+            frame = create_frame(this, this->ctx->pool);
+            if (!frame)
+                goto out;
+
+            frame->root->pid = GF_CLIENT_PID_DEFRAG;
+
+            ret = synctask_new(this->ctx->env, tier_cli_pause,
+                               tier_cli_pause_done, frame, this);
+
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                       "pause tier failed on reconfigure");
+            }
+        } else {
+            ret = gf_defrag_resume_tier(this, defrag);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, 0, DHT_MSG_LOG_TIER_ERROR,
+                       "resume tier failed on reconfigure");
+            }
+        }
+    }
+
 out:
-        return dht_reconfigure (this, options);
+    return dht_reconfigure(this, options);
 }
 
 void
-tier_fini (xlator_t *this)
+tier_fini(xlator_t *this)
 {
-        if (libhandle)
-                dlclose (libhandle);
+    if (libhandle)
+        dlclose(libhandle);
 
-        GF_FREE (demotion_qfile);
-        GF_FREE (promotion_qfile);
+    GF_FREE(demotion_qfile);
+    GF_FREE(promotion_qfile);
 
-        dht_fini(this);
+    dht_fini(this);
 }
 
-class_methods_t class_methods = {
-        .init           = tier_init,
-        .fini           = tier_fini,
-        .reconfigure    = tier_reconfigure,
-        .notify         = dht_notify
-};
+class_methods_t class_methods = {.init = tier_init,
+                                 .fini = tier_fini,
+                                 .reconfigure = tier_reconfigure,
+                                 .notify = dht_notify};
 
 struct xlator_fops fops = {
 
-        .lookup      = dht_lookup,
-        .create      = tier_create,
-        .mknod       = dht_mknod,
-
-        .open        = dht_open,
-        .statfs      = tier_statfs,
-        .opendir     = dht_opendir,
-        .readdir     = tier_readdir,
-        .readdirp    = tier_readdirp,
-        .fsyncdir    = dht_fsyncdir,
-        .symlink     = dht_symlink,
-        .unlink      = tier_unlink,
-        .link        = tier_link,
-        .mkdir       = dht_mkdir,
-        .rmdir       = dht_rmdir,
-        .rename      = dht_rename,
-        .entrylk     = dht_entrylk,
-        .fentrylk    = dht_fentrylk,
-
-        /* Inode read operations */
-        .stat        = dht_stat,
-        .fstat       = dht_fstat,
-        .access      = dht_access,
-        .readlink    = dht_readlink,
-        .getxattr    = dht_getxattr,
-        .fgetxattr    = dht_fgetxattr,
-        .readv       = dht_readv,
-        .flush       = dht_flush,
-        .fsync       = dht_fsync,
-        .inodelk     = dht_inodelk,
-        .finodelk    = dht_finodelk,
-        .lk          = dht_lk,
-
-        /* Inode write operations */
-        .fremovexattr = dht_fremovexattr,
-        .removexattr = dht_removexattr,
-        .setxattr    = dht_setxattr,
-        .fsetxattr   = dht_fsetxattr,
-        .truncate    = dht_truncate,
-        .ftruncate   = dht_ftruncate,
-        .writev      = dht_writev,
-        .xattrop     = dht_xattrop,
-        .fxattrop    = dht_fxattrop,
-        .setattr     = dht_setattr,
-        .fsetattr    = dht_fsetattr,
-        .fallocate   = dht_fallocate,
-        .discard     = dht_discard,
-        .zerofill    = dht_zerofill,
+    .lookup = dht_lookup,
+    .create = tier_create,
+    .mknod = dht_mknod,
+
+    .open = dht_open,
+    .statfs = tier_statfs,
+    .opendir = dht_opendir,
+    .readdir = tier_readdir,
+    .readdirp = tier_readdirp,
+    .fsyncdir = dht_fsyncdir,
+    .symlink = dht_symlink,
+    .unlink = tier_unlink,
+    .link = tier_link,
+    .mkdir = dht_mkdir,
+    .rmdir = dht_rmdir,
+    .rename = dht_rename,
+    .entrylk = dht_entrylk,
+    .fentrylk = dht_fentrylk,
+
+    /* Inode read operations */
+    .stat = dht_stat,
+    .fstat = dht_fstat,
+    .access = dht_access,
+    .readlink = dht_readlink,
+    .getxattr = dht_getxattr,
+    .fgetxattr = dht_fgetxattr,
+    .readv = dht_readv,
+    .flush = dht_flush,
+    .fsync = dht_fsync,
+    .inodelk = dht_inodelk,
+    .finodelk = dht_finodelk,
+    .lk = dht_lk,
+
+    /* Inode write operations */
+    .fremovexattr = dht_fremovexattr,
+    .removexattr = dht_removexattr,
+    .setxattr = dht_setxattr,
+    .fsetxattr = dht_fsetxattr,
+    .truncate = dht_truncate,
+    .ftruncate = dht_ftruncate,
+    .writev = dht_writev,
+    .xattrop = dht_xattrop,
+    .fxattrop = dht_fxattrop,
+    .setattr = dht_setattr,
+    .fsetattr = dht_fsetattr,
+    .fallocate = dht_fallocate,
+    .discard = dht_discard,
+    .zerofill = dht_zerofill,
 };
 
-struct xlator_cbks cbks = {
-        .release    = dht_release,
-        .forget     = dht_forget
-};
+struct xlator_cbks cbks = {.release = dht_release, .forget = dht_forget};
diff --git a/xlators/cluster/dht/src/unittest/dht_layout_mock.c b/xlators/cluster/dht/src/unittest/dht_layout_mock.c
index 6544f4208f5..49bf18b9fe6 100644
--- a/xlators/cluster/dht/src/unittest/dht_layout_mock.c
+++ b/xlators/cluster/dht/src/unittest/dht_layout_mock.c
@@ -13,60 +13,61 @@
 #include "byte-order.h"
 
 int
-dht_hash_compute (xlator_t *this, int type, const char *name, uint32_t *hash_p)
+dht_hash_compute(xlator_t *this, int type, const char *name, uint32_t *hash_p)
 {
     return 0;
 }
 
 int
-dht_inode_ctx_layout_get (inode_t *inode, xlator_t *this, dht_layout_t **layout)
+dht_inode_ctx_layout_get(inode_t *inode, xlator_t *this, dht_layout_t **layout)
 {
     return 0;
 }
 
 int
-dht_inode_ctx_layout_set (inode_t *inode, xlator_t *this,
-                          dht_layout_t *layout_int)
+dht_inode_ctx_layout_set(inode_t *inode, xlator_t *this,
+                         dht_layout_t *layout_int)
 {
     return 0;
 }
 
 int
-dict_get_ptr (dict_t *this, char *key, void **ptr)
+dict_get_ptr(dict_t *this, char *key, void **ptr)
 {
     return 0;
 }
 
 int
-dict_get_ptr_and_len (dict_t *this, char *key, void **ptr, int *len)
+dict_get_ptr_and_len(dict_t *this, char *key, void **ptr, int *len)
 {
     return 0;
 }
 
-int _gf_log (const char *domain, const char *file,
-             const char *function, int32_t line, gf_loglevel_t level,
-             const char *fmt, ...)
+int
+_gf_log(const char *domain, const char *file, const char *function,
+        int32_t line, gf_loglevel_t level, const char *fmt, ...)
 {
     return 0;
 }
 
-int _gf_log_callingfn (const char *domain, const char *file,
-                       const char *function, int32_t line, gf_loglevel_t level,
-                       const char *fmt, ...)
+int
+_gf_log_callingfn(const char *domain, const char *file, const char *function,
+                  int32_t line, gf_loglevel_t level, const char *fmt, ...)
 {
     return 0;
 }
 
-void gf_uuid_unparse(const uuid_t uu, char *out)
+void
+gf_uuid_unparse(const uuid_t uu, char *out)
 {
     // could call a will-return function here
     // to place the correct data in *out
 }
 
 int
-_gf_msg (const char *domain, const char *file, const char *function,
-         int32_t line, gf_loglevel_t level, int errnum, int trace,
-         uint64_t msgid, const char *fmt, ...)
+_gf_msg(const char *domain, const char *file, const char *function,
+        int32_t line, gf_loglevel_t level, int errnum, int trace,
+        uint64_t msgid, const char *fmt, ...)
 {
     return 0;
 }
diff --git a/xlators/cluster/dht/src/unittest/dht_layout_unittest.c b/xlators/cluster/dht/src/unittest/dht_layout_unittest.c
index fb6445ce1f3..72890070835 100644
--- a/xlators/cluster/dht/src/unittest/dht_layout_unittest.c
+++ b/xlators/cluster/dht/src/unittest/dht_layout_unittest.c
@@ -34,16 +34,16 @@ helper_xlator_init(uint32_t num_types)
     xl = test_calloc(1, sizeof(xlator_t));
     assert_non_null(xl);
     xl->mem_acct->num_types = num_types;
-    xl->mem_acct = test_calloc (sizeof(struct mem_acct)
-                                + sizeof(struct mem_acct_rec) + num_types);
+    xl->mem_acct = test_calloc(sizeof(struct mem_acct) +
+                               sizeof(struct mem_acct_rec) + num_types);
     assert_non_null(xl->mem_acct);
 
     xl->ctx = test_calloc(1, sizeof(glusterfs_ctx_t));
     assert_non_null(xl->ctx);
 
     for (i = 0; i < num_types; i++) {
-            ret = LOCK_INIT(&(xl->mem_acct.rec[i].lock));
-            assert_false(ret);
+        ret = LOCK_INIT(&(xl->mem_acct.rec[i].lock));
+        assert_false(ret);
     }
 
     ENSURE(num_types == xl->mem_acct.num_types);
@@ -58,8 +58,8 @@ helper_xlator_destroy(xlator_t *xl)
     int i, ret;
 
     for (i = 0; i < xl->mem_acct.num_types; i++) {
-            ret = LOCK_DESTROY(&(xl->mem_acct.rec[i].lock));
-            assert_int_equal(ret, 0);
+        ret = LOCK_DESTROY(&(xl->mem_acct.rec[i].lock));
+        assert_int_equal(ret, 0);
     }
 
     free(xl->mem_acct.rec);
@@ -76,7 +76,7 @@ test_dht_layout_new(void **state)
 {
     xlator_t *xl;
     dht_layout_t *layout;
-    dht_conf_t   *conf;
+    dht_conf_t *conf;
     int cnt;
 
     expect_assert_failure(dht_layout_new(NULL, 0));
@@ -90,7 +90,7 @@ test_dht_layout_new(void **state)
     assert_non_null(layout);
     assert_int_equal(layout->type, DHT_HASH_TYPE_DM);
     assert_int_equal(layout->cnt, cnt);
-    assert_int_equal(GF_ATOMIC_GET (layout->ref), 1);
+    assert_int_equal(GF_ATOMIC_GET(layout->ref), 1);
     assert_int_equal(layout->gen, 0);
     assert_int_equal(layout->spread_cnt, 0);
     free(layout);
@@ -107,7 +107,7 @@ test_dht_layout_new(void **state)
     assert_non_null(layout);
     assert_int_equal(layout->type, DHT_HASH_TYPE_DM);
     assert_int_equal(layout->cnt, cnt);
-    assert_int_equal(GF_ATOMIC_GET (layout->ref), 1);
+    assert_int_equal(GF_ATOMIC_GET(layout->ref), 1);
     assert_int_equal(layout->gen, conf->gen);
     assert_int_equal(layout->spread_cnt, conf->dir_spread_cnt);
     free(layout);
@@ -116,7 +116,9 @@ test_dht_layout_new(void **state)
     helper_xlator_destroy(xl);
 }
 
-int main(void) {
+int
+main(void)
+{
     const struct CMUnitTest xlator_dht_layout_tests[] = {
         unit_test(test_dht_layout_new),
     };