ctime: Fix updating ctime in rename and unlink

1. Successful rename was not updating ctime.
   Fixed the same.
2. Successful unlink when link count is more than 1
   was not updating ctime. Fixed the same.
3. Copy ctime and flags during frame copy.

Backport of:
 > Patch: https://review.gluster.org/20039
 > BUG: 1580020
 > Change-Id: Ied47275a36aea60254b2add7a59128a9c83b3645

fixes: bz#1582068
Change-Id: Ied47275a36aea60254b2add7a59128a9c83b3645
Signed-off-by: Kotresh HR <khiremat@redhat.com>

4 files changed, 33 insertions, 13 deletions

diff --git a/libglusterfs/src/stack.h b/libglusterfs/src/stack.h
index 18cbf39621a..3a98914645d 100644
--- a/libglusterfs/src/stack.h
+++ b/libglusterfs/src/stack.h
@@ -489,6 +489,8 @@ copy_frame (call_frame_t *frame)
         newstack->pid = oldstack->pid;
         newstack->op  = oldstack->op;
         newstack->type = oldstack->type;
+        newstack->ctime = oldstack->ctime;
+        newstack->flags = oldstack->flags;
 	if (call_stack_alloc_groups (newstack, oldstack->ngrps) != 0) {
 		mem_put (newstack);
 		return NULL;
diff --git a/xlators/features/utime/src/utime-helpers.c b/xlators/features/utime/src/utime-helpers.c
index d8632453e62..8dcd2647a35 100644
--- a/xlators/features/utime/src/utime-helpers.c
+++ b/xlators/features/utime/src/utime-helpers.c
@@ -60,6 +60,7 @@ utime_update_attribute_flags(call_frame_t *frame, glusterfs_fop_t fop)
 
         case GF_FOP_UNLINK:
         case GF_FOP_RMDIR:
+                frame->root->flags |= MDATA_CTIME;
                 frame->root->flags |= MDATA_PAR_CTIME;
                 frame->root->flags |= MDATA_PAR_MTIME;
                 break;
diff --git a/xlators/storage/posix/src/posix-entry-ops.c b/xlators/storage/posix/src/posix-entry-ops.c
index d8ec34a742b..1058339855b 100644
--- a/xlators/storage/posix/src/posix-entry-ops.c
+++ b/xlators/storage/posix/src/posix-entry-ops.c
@@ -915,14 +915,16 @@ out:
 }
 
 int32_t
-posix_unlink_gfid_handle_and_entry (xlator_t *this, const char *real_path,
-                                    struct iatt *stbuf, int32_t *op_errno,
-                                    loc_t *loc, gf_boolean_t get_link_count,
+posix_unlink_gfid_handle_and_entry (call_frame_t *frame, xlator_t *this,
+                                    const char *real_path, struct iatt *stbuf,
+                                    int32_t *op_errno, loc_t *loc,
+                                    gf_boolean_t get_link_count,
                                     dict_t *rsp_dict)
 {
         int32_t                ret      = 0;
         struct iatt            prebuf   = {0,};
         gf_boolean_t           locked   = _gf_false;
+        gf_boolean_t           update_ctime = _gf_false;
 
         /*  Unlink the gfid_handle_first */
         if (stbuf && stbuf->ia_nlink == 1) {
@@ -943,6 +945,8 @@ posix_unlink_gfid_handle_and_entry (xlator_t *this, const char *real_path,
                                 "failed for path:%s with gfid %s",
                                 real_path, uuid_utoa (stbuf->ia_gfid));
                 }
+        } else {
+                update_ctime = _gf_true;
         }
 
         if (get_link_count) {
@@ -976,6 +980,10 @@ posix_unlink_gfid_handle_and_entry (xlator_t *this, const char *real_path,
                 locked = _gf_false;
         }
 
+        if (update_ctime) {
+                posix_set_ctime (frame, this, NULL, -1, loc->inode, stbuf);
+        }
+
         ret = dict_set_uint32 (rsp_dict, GET_LINK_COUNT, prebuf.ia_nlink);
         if (ret)
                 gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_SET_XDATA_FAIL,
@@ -1203,8 +1211,8 @@ posix_unlink (call_frame_t *frame, xlator_t *this,
 
         if (xdata && dict_get (xdata, GET_LINK_COUNT))
                 get_link_count = _gf_true;
-        op_ret =  posix_unlink_gfid_handle_and_entry (this, real_path, &stbuf,
-                                                      &op_errno, loc,
+        op_ret =  posix_unlink_gfid_handle_and_entry (frame, this, real_path,
+                                                      &stbuf, &op_errno, loc,
                                                       get_link_count,
                                                       unwind_dict);
         if (op_ret == -1) {
@@ -1800,7 +1808,10 @@ unlock:
                 goto out;
         }
 
-        posix_set_ctime (frame, this, real_newpath, -1, newloc->inode, &stbuf);
+        /* Since the same inode is later used and dst inode is not present,
+         * update ctime on source inode. It can't use old path because it
+         * doesn't exist and xattr has to be stored on disk */
+        posix_set_ctime (frame, this, real_newpath, -1, oldloc->inode, &stbuf);
 
         op_ret = posix_pstat (this, oldloc->parent, oldloc->pargfid,
                               par_oldpath, &postoldparent, _gf_false);
diff --git a/xlators/storage/posix/src/posix-metadata.c b/xlators/storage/posix/src/posix-metadata.c
index fda8fb5eaec..07d49da6b82 100644
--- a/xlators/storage/posix/src/posix-metadata.c
+++ b/xlators/storage/posix/src/posix-metadata.c
@@ -358,7 +358,6 @@ posix_set_mdata_xattr (xlator_t *this, const char *real_path, int fd,
 
         GF_VALIDATE_OR_GOTO ("posix", this, out);
         GF_VALIDATE_OR_GOTO (this->name, inode, out);
-        GF_VALIDATE_OR_GOTO (this->name, inode->gfid, out);
 
         LOCK (&inode->lock);
         {
@@ -572,21 +571,28 @@ posix_set_ctime (call_frame_t *frame, xlator_t *this, const char* real_path,
 
         priv = this->private;
 
-        if (inode && priv->ctime) {
+        if (priv->ctime) {
                 (void) posix_get_mdata_flag (frame->root->flags, &flag);
+                if (frame->root->ctime.tv_sec == 0) {
+                        gf_msg (this->name, GF_LOG_WARNING, errno,
+                                P_MSG_SETMDATA_FAILED,
+                                "posix set mdata failed, No ctime : %s gfid:%s",
+                                real_path,
+                                inode ? uuid_utoa (inode->gfid) : "No inode");
+                        goto out;
+                }
+
                 ret = posix_set_mdata_xattr (this, real_path, fd, inode,
                                              &frame->root->ctime, stbuf, &flag);
                 if (ret) {
                         gf_msg (this->name, GF_LOG_WARNING, errno,
                                 P_MSG_SETMDATA_FAILED,
                                 "posix set mdata failed on file: %s gfid:%s",
-                                real_path, uuid_utoa (inode->gfid));
+                                real_path,
+                                inode ? uuid_utoa (inode->gfid) : "No inode");
                 }
-        } else {
-                gf_msg (this->name, GF_LOG_WARNING, errno,
-                        P_MSG_SETMDATA_FAILED,
-                        "posix set mdata failed on file");
         }
+ out:
         return;
 }