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authorRaghavendra G <raghavendra@gluster.com>2011-07-19 16:38:44 +0530
committerAnand Avati <avati@gluster.com>2011-07-29 01:33:32 -0700
commit5f98fe60c291075702ef61f711ba89f724d2e75e (patch)
tree21dc27ffe27fcdc846f38a9eb0f3d97d3b35995d /xlators
parentbe817019cbb096fe2cca632c6fbcf77f360e201d (diff)
performance/io-cache: hold lock on ioc_inode whereever a page is being accessed/modified
Change-Id: I77e94166d4ad7a9ac87127de840add7278992bf3 BUG: 2939 Reviewed-on: http://review.gluster.com/24 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
Diffstat (limited to 'xlators')
-rw-r--r--xlators/performance/io-cache/src/io-cache.c1552
-rw-r--r--xlators/performance/io-cache/src/io-cache.h15
-rw-r--r--xlators/performance/io-cache/src/ioc-inode.c26
-rw-r--r--xlators/performance/io-cache/src/page.c203
4 files changed, 950 insertions, 846 deletions
diff --git a/xlators/performance/io-cache/src/io-cache.c b/xlators/performance/io-cache/src/io-cache.c
index da6c556..1b16342 100644
--- a/xlators/performance/io-cache/src/io-cache.c
+++ b/xlators/performance/io-cache/src/io-cache.c
@@ -54,50 +54,55 @@ ioc_hashfn (void *data, int len)
inline ioc_inode_t *
ioc_inode_reupdate (ioc_inode_t *ioc_inode)
{
- ioc_table_t *table = ioc_inode->table;
+ ioc_table_t *table = NULL;
+
+ table = ioc_inode->table;
- list_add_tail (&ioc_inode->inode_lru,
- &table->inode_lru[ioc_inode->weight]);
+ list_add_tail (&ioc_inode->inode_lru,
+ &table->inode_lru[ioc_inode->weight]);
- return ioc_inode;
+ return ioc_inode;
}
inline ioc_inode_t *
ioc_get_inode (dict_t *dict, char *name)
{
- ioc_inode_t *ioc_inode = NULL;
- data_t *ioc_inode_data = dict_get (dict, name);
- ioc_table_t *table = NULL;
-
- if (ioc_inode_data) {
- ioc_inode = data_to_ptr (ioc_inode_data);
- table = ioc_inode->table;
-
- ioc_table_lock (table);
- {
- if (list_empty (&ioc_inode->inode_lru)) {
- ioc_inode = ioc_inode_reupdate (ioc_inode);
- }
- }
- ioc_table_unlock (table);
- }
-
- return ioc_inode;
+ ioc_inode_t *ioc_inode = NULL;
+ data_t *ioc_inode_data = NULL;
+ ioc_table_t *table = NULL;
+
+ ioc_inode_data = dict_get (dict, name);
+ if (ioc_inode_data) {
+ ioc_inode = data_to_ptr (ioc_inode_data);
+ table = ioc_inode->table;
+
+ ioc_table_lock (table);
+ {
+ if (list_empty (&ioc_inode->inode_lru)) {
+ ioc_inode = ioc_inode_reupdate (ioc_inode);
+ }
+ }
+ ioc_table_unlock (table);
+ }
+
+ return ioc_inode;
}
int32_t
ioc_inode_need_revalidate (ioc_inode_t *ioc_inode)
{
- int8_t need_revalidate = 0;
- struct timeval tv = {0,};
- ioc_table_t *table = ioc_inode->table;
+ int8_t need_revalidate = 0;
+ struct timeval tv = {0,};
+ ioc_table_t *table = NULL;
+
+ table = ioc_inode->table;
- gettimeofday (&tv, NULL);
+ gettimeofday (&tv, NULL);
- if (time_elapsed (&tv, &ioc_inode->cache.tv) >= table->cache_timeout)
- need_revalidate = 1;
+ if (time_elapsed (&tv, &ioc_inode->cache.tv) >= table->cache_timeout)
+ need_revalidate = 1;
- return need_revalidate;
+ return need_revalidate;
}
/*
@@ -110,41 +115,41 @@ ioc_inode_need_revalidate (ioc_inode_t *ioc_inode)
int64_t
__ioc_inode_flush (ioc_inode_t *ioc_inode)
{
- ioc_page_t *curr = NULL, *next = NULL;
- int64_t destroy_size = 0;
- int64_t ret = 0;
+ ioc_page_t *curr = NULL, *next = NULL;
+ int64_t destroy_size = 0;
+ int64_t ret = 0;
- list_for_each_entry_safe (curr, next, &ioc_inode->cache.page_lru,
+ list_for_each_entry_safe (curr, next, &ioc_inode->cache.page_lru,
page_lru) {
- ret = ioc_page_destroy (curr);
+ ret = __ioc_page_destroy (curr);
- if (ret != -1)
- destroy_size += ret;
- }
+ if (ret != -1)
+ destroy_size += ret;
+ }
- return destroy_size;
+ return destroy_size;
}
void
ioc_inode_flush (ioc_inode_t *ioc_inode)
{
- int64_t destroy_size = 0;
-
- ioc_inode_lock (ioc_inode);
- {
- destroy_size = __ioc_inode_flush (ioc_inode);
- }
- ioc_inode_unlock (ioc_inode);
-
- if (destroy_size) {
- ioc_table_lock (ioc_inode->table);
- {
- ioc_inode->table->cache_used -= destroy_size;
- }
- ioc_table_unlock (ioc_inode->table);
- }
-
- return;
+ int64_t destroy_size = 0;
+
+ ioc_inode_lock (ioc_inode);
+ {
+ destroy_size = __ioc_inode_flush (ioc_inode);
+ }
+ ioc_inode_unlock (ioc_inode);
+
+ if (destroy_size) {
+ ioc_table_lock (ioc_inode->table);
+ {
+ ioc_inode->table->cache_used -= destroy_size;
+ }
+ ioc_table_unlock (ioc_inode->table);
+ }
+
+ return;
}
int32_t
@@ -152,44 +157,44 @@ ioc_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno,
struct iatt *preop, struct iatt *postop)
{
- STACK_UNWIND_STRICT (setattr, frame, op_ret, op_errno, preop, postop);
- return 0;
+ STACK_UNWIND_STRICT (setattr, frame, op_ret, op_errno, preop, postop);
+ return 0;
}
int32_t
ioc_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
struct iatt *stbuf, int32_t valid)
{
- uint64_t ioc_inode = 0;
+ uint64_t ioc_inode = 0;
- inode_ctx_get (loc->inode, this, &ioc_inode);
+ inode_ctx_get (loc->inode, this, &ioc_inode);
- if (ioc_inode
+ if (ioc_inode
&& ((valid & GF_SET_ATTR_ATIME)
|| (valid & GF_SET_ATTR_MTIME)))
- ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
+ ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
- STACK_WIND (frame, ioc_setattr_cbk, FIRST_CHILD (this),
+ STACK_WIND (frame, ioc_setattr_cbk, FIRST_CHILD (this),
FIRST_CHILD (this)->fops->setattr, loc, stbuf, valid);
- return 0;
+ return 0;
}
int32_t
ioc_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, inode_t *inode,
- struct iatt *stbuf, dict_t *dict, struct iatt *postparent)
+ int32_t op_ret, int32_t op_errno, inode_t *inode,
+ struct iatt *stbuf, dict_t *dict, struct iatt *postparent)
{
- ioc_inode_t *ioc_inode = NULL;
- ioc_table_t *table = NULL;
- uint8_t cache_still_valid = 0;
- uint64_t tmp_ioc_inode = 0;
- uint32_t weight = 0xffffffff;
- const char *path = NULL;
- ioc_local_t *local = NULL;
-
- if (op_ret != 0)
- goto out;
+ ioc_inode_t *ioc_inode = NULL;
+ ioc_table_t *table = NULL;
+ uint8_t cache_still_valid = 0;
+ uint64_t tmp_ioc_inode = 0;
+ uint32_t weight = 0xffffffff;
+ const char *path = NULL;
+ ioc_local_t *local = NULL;
+
+ if (op_ret != 0)
+ goto out;
local = frame->local;
if (local == NULL) {
@@ -256,16 +261,16 @@ out:
loc_wipe (&local->file_loc);
}
- STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno, inode, stbuf,
+ STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno, inode, stbuf,
dict, postparent);
- return 0;
+ return 0;
}
int32_t
ioc_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
- dict_t *xattr_req)
+ dict_t *xattr_req)
{
- ioc_local_t *local = NULL;
+ ioc_local_t *local = NULL;
int32_t op_errno = -1, ret = -1;
local = GF_CALLOC (1, sizeof (*local),
@@ -285,16 +290,16 @@ ioc_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
frame->local = local;
- STACK_WIND (frame, ioc_lookup_cbk, FIRST_CHILD (this),
- FIRST_CHILD (this)->fops->lookup, loc, xattr_req);
+ STACK_WIND (frame, ioc_lookup_cbk, FIRST_CHILD (this),
+ FIRST_CHILD (this)->fops->lookup, loc, xattr_req);
return 0;
unwind:
- STACK_UNWIND_STRICT (lookup, frame, -1, op_errno, NULL, NULL,
+ STACK_UNWIND_STRICT (lookup, frame, -1, op_errno, NULL, NULL,
NULL, NULL);
- return 0;
+ return 0;
}
/*
@@ -308,14 +313,14 @@ unwind:
int32_t
ioc_forget (xlator_t *this, inode_t *inode)
{
- uint64_t ioc_inode = 0;
+ uint64_t ioc_inode = 0;
- inode_ctx_get (inode, this, &ioc_inode);
+ inode_ctx_get (inode, this, &ioc_inode);
- if (ioc_inode)
- ioc_inode_destroy ((ioc_inode_t *)(long)ioc_inode);
+ if (ioc_inode)
+ ioc_inode_destroy ((ioc_inode_t *)(long)ioc_inode);
- return 0;
+ return 0;
}
@@ -332,86 +337,87 @@ ioc_forget (xlator_t *this, inode_t *inode)
*/
int32_t
ioc_cache_validate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *stbuf)
+ int32_t op_ret, int32_t op_errno, struct iatt *stbuf)
{
- ioc_local_t *local = NULL;
- ioc_inode_t *ioc_inode = NULL;
- size_t destroy_size = 0;
- struct iatt *local_stbuf = NULL;
+ ioc_local_t *local = NULL;
+ ioc_inode_t *ioc_inode = NULL;
+ size_t destroy_size = 0;
+ struct iatt *local_stbuf = NULL;
local = frame->local;
- ioc_inode = local->inode;
+ ioc_inode = local->inode;
local_stbuf = stbuf;
- if ((op_ret == -1) ||
- ((op_ret >= 0) && !ioc_cache_still_valid(ioc_inode, stbuf))) {
- gf_log (ioc_inode->table->xl->name, GF_LOG_DEBUG,
- "cache for inode(%p) is invalid. flushing all pages",
- ioc_inode);
- /* NOTE: only pages with no waiting frames are flushed by
- * ioc_inode_flush. page_fault will be generated for all
- * the pages which have waiting frames by ioc_inode_wakeup()
- */
- ioc_inode_lock (ioc_inode);
- {
- destroy_size = __ioc_inode_flush (ioc_inode);
- if (op_ret >= 0) {
- ioc_inode->cache.mtime = stbuf->ia_mtime;
- ioc_inode->cache.mtime_nsec = stbuf->ia_mtime_nsec;
+ if ((op_ret == -1) ||
+ ((op_ret >= 0) && !ioc_cache_still_valid(ioc_inode, stbuf))) {
+ gf_log (ioc_inode->table->xl->name, GF_LOG_DEBUG,
+ "cache for inode(%p) is invalid. flushing all pages",
+ ioc_inode);
+ /* NOTE: only pages with no waiting frames are flushed by
+ * ioc_inode_flush. page_fault will be generated for all
+ * the pages which have waiting frames by ioc_inode_wakeup()
+ */
+ ioc_inode_lock (ioc_inode);
+ {
+ destroy_size = __ioc_inode_flush (ioc_inode);
+ if (op_ret >= 0) {
+ ioc_inode->cache.mtime = stbuf->ia_mtime;
+ ioc_inode->cache.mtime_nsec
+ = stbuf->ia_mtime_nsec;
}
- }
- ioc_inode_unlock (ioc_inode);
- local_stbuf = NULL;
- }
-
- if (destroy_size) {
- ioc_table_lock (ioc_inode->table);
- {
- ioc_inode->table->cache_used -= destroy_size;
- }
- ioc_table_unlock (ioc_inode->table);
- }
-
- if (op_ret < 0)
- local_stbuf = NULL;
-
- ioc_inode_lock (ioc_inode);
- {
- gettimeofday (&ioc_inode->cache.tv, NULL);
- }
- ioc_inode_unlock (ioc_inode);
-
- ioc_inode_wakeup (frame, ioc_inode, local_stbuf);
-
- /* any page-fault initiated by ioc_inode_wakeup() will have its own
- * fd_ref on fd, safe to unref validate frame's private copy
- */
- fd_unref (local->fd);
-
- STACK_DESTROY (frame->root);
-
- return 0;
+ }
+ ioc_inode_unlock (ioc_inode);
+ local_stbuf = NULL;
+ }
+
+ if (destroy_size) {
+ ioc_table_lock (ioc_inode->table);
+ {
+ ioc_inode->table->cache_used -= destroy_size;
+ }
+ ioc_table_unlock (ioc_inode->table);
+ }
+
+ if (op_ret < 0)
+ local_stbuf = NULL;
+
+ ioc_inode_lock (ioc_inode);
+ {
+ gettimeofday (&ioc_inode->cache.tv, NULL);
+ }
+ ioc_inode_unlock (ioc_inode);
+
+ ioc_inode_wakeup (frame, ioc_inode, local_stbuf);
+
+ /* any page-fault initiated by ioc_inode_wakeup() will have its own
+ * fd_ref on fd, safe to unref validate frame's private copy
+ */
+ fd_unref (local->fd);
+
+ STACK_DESTROY (frame->root);
+
+ return 0;
}
int32_t
ioc_wait_on_inode (ioc_inode_t *ioc_inode, ioc_page_t *page)
{
- ioc_waitq_t *waiter = NULL, *trav = NULL;
- uint32_t page_found = 0;
- int32_t ret = 0;
-
- trav = ioc_inode->waitq;
-
- while (trav) {
- if (trav->data == page) {
- page_found = 1;
- break;
- }
- trav = trav->next;
- }
-
- if (!page_found) {
- waiter = GF_CALLOC (1, sizeof (ioc_waitq_t),
+ ioc_waitq_t *waiter = NULL, *trav = NULL;
+ uint32_t page_found = 0;
+ int32_t ret = 0;
+
+ trav = ioc_inode->waitq;
+
+ while (trav) {
+ if (trav->data == page) {
+ page_found = 1;
+ break;
+ }
+ trav = trav->next;
+ }
+
+ if (!page_found) {
+ waiter = GF_CALLOC (1, sizeof (ioc_waitq_t),
gf_ioc_mt_ioc_waitq_t);
if (waiter == NULL) {
gf_log (ioc_inode->table->xl->name, GF_LOG_ERROR,
@@ -420,13 +426,13 @@ ioc_wait_on_inode (ioc_inode_t *ioc_inode, ioc_page_t *page)
goto out;
}
- waiter->data = page;
- waiter->next = ioc_inode->waitq;
- ioc_inode->waitq = waiter;
- }
+ waiter->data = page;
+ waiter->next = ioc_inode->waitq;
+ ioc_inode->waitq = waiter;
+ }
out:
- return ret;
+ return ret;
}
/*
@@ -439,15 +445,15 @@ out:
*/
int32_t
ioc_cache_validate (call_frame_t *frame, ioc_inode_t *ioc_inode, fd_t *fd,
- ioc_page_t *page)
+ ioc_page_t *page)
{
- call_frame_t *validate_frame = NULL;
- ioc_local_t *validate_local = NULL;
- ioc_local_t *local = NULL;
- int32_t ret = 0;
+ call_frame_t *validate_frame = NULL;
+ ioc_local_t *validate_local = NULL;
+ ioc_local_t *local = NULL;
+ int32_t ret = 0;
local = frame->local;
- validate_local = GF_CALLOC (1, sizeof (ioc_local_t),
+ validate_local = GF_CALLOC (1, sizeof (ioc_local_t),
gf_ioc_mt_ioc_local_t);
if (validate_local == NULL) {
ret = -1;
@@ -458,7 +464,7 @@ ioc_cache_validate (call_frame_t *frame, ioc_inode_t *ioc_inode, fd_t *fd,
goto out;
}
- validate_frame = copy_frame (frame);
+ validate_frame = copy_frame (frame);
if (validate_frame == NULL) {
ret = -1;
local->op_ret = -1;
@@ -469,44 +475,44 @@ ioc_cache_validate (call_frame_t *frame, ioc_inode_t *ioc_inode, fd_t *fd,
goto out;
}
- validate_local->fd = fd_ref (fd);
- validate_local->inode = ioc_inode;
- validate_frame->local = validate_local;
+ validate_local->fd = fd_ref (fd);
+ validate_local->inode = ioc_inode;
+ validate_frame->local = validate_local;
- STACK_WIND (validate_frame, ioc_cache_validate_cbk,
+ STACK_WIND (validate_frame, ioc_cache_validate_cbk,
FIRST_CHILD (frame->this),
FIRST_CHILD (frame->this)->fops->fstat, fd);
out:
- return ret;
+ return ret;
}
inline uint32_t
is_match (const char *path, const char *pattern)
{
- int32_t ret = 0;
+ int32_t ret = 0;
- ret = fnmatch (pattern, path, FNM_NOESCAPE);
+ ret = fnmatch (pattern, path, FNM_NOESCAPE);
- return (ret == 0);
+ return (ret == 0);
}
uint32_t
ioc_get_priority (ioc_table_t *table, const char *path)
{
- uint32_t priority = 1;
- struct ioc_priority *curr = NULL;
+ uint32_t priority = 1;
+ struct ioc_priority *curr = NULL;
- if (list_empty(&table->priority_list))
- return priority;
+ if (list_empty(&table->priority_list))
+ return priority;
- priority = 0;
- list_for_each_entry (curr, &table->priority_list, list) {
- if (is_match (path, curr->pattern))
- priority = curr->priority;
- }
+ priority = 0;
+ list_for_each_entry (curr, &table->priority_list, list) {
+ if (is_match (path, curr->pattern))
+ priority = curr->priority;
+ }
- return priority;
+ return priority;
}
/*
@@ -522,13 +528,13 @@ ioc_get_priority (ioc_table_t *table, const char *path)
*/
int32_t
ioc_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret,
- int32_t op_errno, fd_t *fd)
+ int32_t op_errno, fd_t *fd)
{
- uint64_t tmp_ioc_inode = 0;
- ioc_local_t *local = NULL;
- ioc_table_t *table = NULL;
- ioc_inode_t *ioc_inode = NULL;
- uint32_t weight = 0xffffffff;
+ uint64_t tmp_ioc_inode = 0;
+ ioc_local_t *local = NULL;
+ ioc_table_t *table = NULL;
+ ioc_inode_t *ioc_inode = NULL;
+ uint32_t weight = 0xffffffff;
local = frame->local;
if (!this || !this->private) {
@@ -565,7 +571,7 @@ ioc_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret,
/* O_DIRECT is only for one fd, not the inode
* as a whole
*/
- fd_ctx_set (fd, this, 1);
+ fd_ctx_set (fd, this, 1);
}
if ((local->wbflags & GF_OPEN_NOWB) != 0) {
/* disable caching as asked by NFS */
@@ -575,7 +581,7 @@ ioc_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret,
/* weight = 0, we disable caching on it */
if (weight == 0) {
/* we allow a pattern-matched cache disable this way
- */
+ */
fd_ctx_set (fd, this, 1);
}
}
@@ -586,7 +592,7 @@ out:
STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd);
- return 0;
+ return 0;
}
/*
@@ -605,15 +611,15 @@ out:
int32_t
ioc_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, fd_t *fd,
- inode_t *inode, struct iatt *buf, struct iatt *preparent,
+ inode_t *inode, struct iatt *buf, struct iatt *preparent,
struct iatt *postparent)
{
- ioc_local_t *local = NULL;
- ioc_table_t *table = NULL;
- ioc_inode_t *ioc_inode = NULL;
- uint32_t weight = 0xffffffff;
- const char *path = NULL;
- int ret = -1;
+ ioc_local_t *local = NULL;
+ ioc_table_t *table = NULL;
+ ioc_inode_t *ioc_inode = NULL;
+ uint32_t weight = 0xffffffff;
+ const char *path = NULL;
+ int ret = -1;
local = frame->local;
if (!this || !this->private) {
@@ -625,7 +631,7 @@ ioc_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
table = this->private;
path = local->file_loc.path;
- if (op_ret != -1) {
+ if (op_ret != -1) {
/* assign weight */
weight = ioc_get_priority (table, path);
@@ -639,7 +645,8 @@ ioc_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
if ((table->min_file_size > ioc_inode->ia_size)
|| ((table->max_file_size >= 0)
- && (table->max_file_size < ioc_inode->ia_size))) {
+ && (table->max_file_size
+ < ioc_inode->ia_size))) {
ret = fd_ctx_set (fd, this, 1);
}
}
@@ -648,28 +655,28 @@ ioc_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
inode_ctx_put (fd->inode, this,
(uint64_t)(long)ioc_inode);
- /* If O_DIRECT open, we disable caching on it */
- if (local->flags & O_DIRECT)
- /*
+ /* If O_DIRECT open, we disable caching on it */
+ if (local->flags & O_DIRECT)
+ /*
* O_DIRECT is only for one fd, not the inode
- * as a whole */
- ret = fd_ctx_set (fd, this, 1);
+ * as a whole */
+ ret = fd_ctx_set (fd, this, 1);
/* if weight == 0, we disable caching on it */
- if (!weight)
- /* we allow a pattern-matched cache disable this way */
- ret = fd_ctx_set (fd, this, 1);
+ if (!weight)
+ /* we allow a pattern-matched cache disable this way */
+ ret = fd_ctx_set (fd, this, 1);
- }
+ }
out:
- frame->local = NULL;
- GF_FREE (local);
+ frame->local = NULL;
+ GF_FREE (local);
STACK_UNWIND_STRICT (create, frame, op_ret, op_errno, fd, inode, buf,
preparent, postparent);
- return 0;
+ return 0;
}
@@ -680,10 +687,10 @@ ioc_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *postparent)
{
ioc_local_t *local = NULL;
- ioc_table_t *table = NULL;
- ioc_inode_t *ioc_inode = NULL;
- uint32_t weight = 0xffffffff;
- const char *path = NULL;
+ ioc_table_t *table = NULL;
+ ioc_inode_t *ioc_inode = NULL;
+ uint32_t weight = 0xffffffff;
+ const char *path = NULL;
local = frame->local;
if (!this || !this->private) {
@@ -695,7 +702,7 @@ ioc_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
table = this->private;
path = local->file_loc.path;
- if (op_ret != -1) {
+ if (op_ret != -1) {
/* assign weight */
weight = ioc_get_priority (table, path);
@@ -711,17 +718,17 @@ ioc_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
inode_ctx_put (inode, this,
(uint64_t)(long)ioc_inode);
- }
+ }
out:
- frame->local = NULL;
+ frame->local = NULL;
loc_wipe (&local->file_loc);
- GF_FREE (local);
+ GF_FREE (local);
- STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno, inode, buf,
+ STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno, inode, buf,
preparent, postparent);
- return 0;
+ return 0;
}
@@ -729,7 +736,7 @@ int
ioc_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
dev_t rdev, dict_t *params)
{
- ioc_local_t *local = NULL;
+ ioc_local_t *local = NULL;
int32_t op_errno = -1, ret = -1;
local = GF_CALLOC (1, sizeof (*local),
@@ -749,10 +756,10 @@ ioc_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
frame->local = local;
- STACK_WIND (frame, ioc_mknod_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->mknod,
- loc, mode, rdev, params);
+ STACK_WIND (frame, ioc_mknod_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->mknod,
+ loc, mode, rdev, params);
return 0;
unwind:
@@ -761,10 +768,10 @@ unwind:
GF_FREE (local);
}
- STACK_UNWIND_STRICT (mknod, frame, -1, op_errno, NULL, NULL,
+ STACK_UNWIND_STRICT (mknod, frame, -1, op_errno, NULL, NULL,
NULL, NULL);
- return 0;
+ return 0;
}
@@ -778,10 +785,10 @@ unwind:
*/
int32_t
ioc_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
- fd_t *fd, int32_t wbflags)
+ fd_t *fd, int32_t wbflags)
{
- ioc_local_t *local = NULL;
+ ioc_local_t *local = NULL;
local = GF_CALLOC (1, sizeof (ioc_local_t), gf_ioc_mt_ioc_local_t);
if (local == NULL) {
@@ -790,17 +797,17 @@ ioc_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
return 0;
}
- local->flags = flags;
- local->file_loc.path = loc->path;
- local->file_loc.inode = loc->inode;
+ local->flags = flags;
+ local->file_loc.path = loc->path;
+ local->file_loc.inode = loc->inode;
local->wbflags = wbflags;
- frame->local = local;
+ frame->local = local;
- STACK_WIND (frame, ioc_open_cbk, FIRST_CHILD(this),
+ STACK_WIND (frame, ioc_open_cbk, FIRST_CHILD(this),
FIRST_CHILD(this)->fops->open, loc, flags, fd, wbflags);
- return 0;
+ return 0;
}
/*
@@ -815,9 +822,9 @@ ioc_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
*/
int32_t
ioc_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
- mode_t mode, fd_t *fd, dict_t *params)
+ mode_t mode, fd_t *fd, dict_t *params)
{
- ioc_local_t *local = NULL;
+ ioc_local_t *local = NULL;
local = GF_CALLOC (1, sizeof (ioc_local_t), gf_ioc_mt_ioc_local_t);
if (local == NULL) {
@@ -827,15 +834,15 @@ ioc_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
return 0;
}
- local->flags = flags;
- local->file_loc.path = loc->path;
- frame->local = local;
+ local->flags = flags;
+ local->file_loc.path = loc->path;
+ frame->local = local;
- STACK_WIND (frame, ioc_create_cbk, FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->create, loc, flags, mode,
+ STACK_WIND (frame, ioc_create_cbk, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->create, loc, flags, mode,
fd, params);
- return 0;
+ return 0;
}
@@ -852,7 +859,7 @@ ioc_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
int32_t
ioc_release (xlator_t *this, fd_t *fd)
{
- return 0;
+ return 0;
}
/*
@@ -869,30 +876,30 @@ ioc_release (xlator_t *this, fd_t *fd)
int32_t
ioc_readv_disabled_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iovec *vector,
- int32_t count, struct iatt *stbuf,
+ int32_t count, struct iatt *stbuf,
struct iobref *iobref)
{
- STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno, vector, count,
+ STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno, vector, count,
stbuf, iobref);
- return 0;
+ return 0;
}
int32_t
ioc_need_prune (ioc_table_t *table)
{
- int64_t cache_difference = 0;
-
- ioc_table_lock (table);
- {
- cache_difference = table->cache_used - table->cache_size;
- }
- ioc_table_unlock (table);
-
- if (cache_difference > 0)
- return 1;
- else
- return 0;
+ int64_t cache_difference = 0;
+
+ ioc_table_lock (table);
+ {
+ cache_difference = table->cache_used - table->cache_size;
+ }
+ ioc_table_unlock (table);
+
+ if (cache_difference > 0)
+ return 1;
+ else
+ return 0;
}
/*
@@ -907,122 +914,129 @@ void
ioc_dispatch_requests (call_frame_t *frame, ioc_inode_t *ioc_inode, fd_t *fd,
off_t offset, size_t size)
{
- ioc_local_t *local = NULL;
- ioc_table_t *table = NULL;
- ioc_page_t *trav = NULL;
- ioc_waitq_t *waitq = NULL;
- off_t rounded_offset = 0;
- off_t rounded_end = 0;
- off_t trav_offset = 0;
- int32_t fault = 0;
- size_t trav_size = 0;
- off_t local_offset = 0;
- int32_t ret = -1;
- int8_t need_validate = 0;
- int8_t might_need_validate = 0; /*
- * if a page exists, do we need
- * to validate it?
- */
+ ioc_local_t *local = NULL;
+ ioc_table_t *table = NULL;
+ ioc_page_t *trav = NULL;
+ ioc_waitq_t *waitq = NULL;
+ off_t rounded_offset = 0;
+ off_t rounded_end = 0;
+ off_t trav_offset = 0;
+ int32_t fault = 0;
+ size_t trav_size = 0;
+ off_t local_offset = 0;
+ int32_t ret = -1;
+ int8_t need_validate = 0;
+ int8_t might_need_validate = 0; /*
+ * if a page exists, do we need
+ * to validate it?
+ */
local = frame->local;
table = ioc_inode->table;
- rounded_offset = floor (offset, table->page_size);
- rounded_end = roof (offset + size, table->page_size);
- trav_offset = rounded_offset;
-
- /* once a frame does read, it should be waiting on something */
- local->wait_count++;
-
- /* Requested region can fall in three different pages,
- * 1. Ready - region is already in cache, we just have to serve it.
- * 2. In-transit - page fault has been generated on this page, we need
- * to wait till the page is ready
- * 3. Fault - page is not in cache, we have to generate a page fault
- */
-
- might_need_validate = ioc_inode_need_revalidate (ioc_inode);
-
- while (trav_offset < rounded_end) {
- ioc_inode_lock (ioc_inode);
- //{
-
- /* look for requested region in the cache */
- trav = ioc_page_get (ioc_inode, trav_offset);
-
- local_offset = max (trav_offset, offset);
- trav_size = min (((offset+size) - local_offset),
- table->page_size);
-
- if (!trav) {
- /* page not in cache, we need to generate page fault */
- trav = ioc_page_create (ioc_inode, trav_offset);
- fault = 1;
- if (!trav) {
- gf_log (frame->this->name, GF_LOG_CRITICAL,
- "out of memory");
- local->op_ret = -1;
- local->op_errno = ENOMEM;
- goto out;
- }
- }
-
- ioc_wait_on_page (trav, frame, local_offset, trav_size);
-
- if (trav->ready) {
- /* page found in cache */
- if (!might_need_validate && !ioc_inode->waitq) {
- /* fresh enough */
- gf_log (frame->this->name, GF_LOG_TRACE,
- "cache hit for trav_offset=%"PRId64""
- "/local_offset=%"PRId64"",
- trav_offset, local_offset);
- waitq = ioc_page_wakeup (trav);
- } else {
- /* if waitq already exists, fstat revalidate is
- already on the way */
- if (!ioc_inode->waitq) {
- need_validate = 1;
- }
-
- ret = ioc_wait_on_inode (ioc_inode, trav);
- if (ret < 0) {
- local->op_ret = -1;
- local->op_errno = -ret;
- need_validate = 0;
+ rounded_offset = floor (offset, table->page_size);
+ rounded_end = roof (offset + size, table->page_size);
+ trav_offset = rounded_offset;
+
+ /* once a frame does read, it should be waiting on something */
+ local->wait_count++;
- waitq = ioc_page_wakeup (trav);
- ioc_inode_unlock (ioc_inode);
+ /* Requested region can fall in three different pages,
+ * 1. Ready - region is already in cache, we just have to serve it.
+ * 2. In-transit - page fault has been generated on this page, we need
+ * to wait till the page is ready
+ * 3. Fault - page is not in cache, we have to generate a page fault
+ */
- ioc_waitq_return (waitq);
- waitq = NULL;
+ might_need_validate = ioc_inode_need_revalidate (ioc_inode);
+
+ while (trav_offset < rounded_end) {
+ ioc_inode_lock (ioc_inode);
+ {
+ /* look for requested region in the cache */
+ trav = __ioc_page_get (ioc_inode, trav_offset);
+
+ local_offset = max (trav_offset, offset);
+ trav_size = min (((offset+size) - local_offset),
+ table->page_size);
+
+ if (!trav) {
+ /* page not in cache, we need to generate page
+ * fault
+ */
+ trav = __ioc_page_create (ioc_inode,
+ trav_offset);
+ fault = 1;
+ if (!trav) {
+ gf_log (frame->this->name,
+ GF_LOG_CRITICAL,
+ "out of memory");
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
goto out;
}
- }
- }
-
- //}
- ioc_inode_unlock (ioc_inode);
-
- ioc_waitq_return (waitq);
- waitq = NULL;
-
- if (fault) {
- fault = 0;
- /* new page created, increase the table->cache_used */
- ioc_page_fault (ioc_inode, frame, fd, trav_offset);
- }
-
- if (need_validate) {
- need_validate = 0;
- gf_log (frame->this->name, GF_LOG_TRACE,
- "sending validate request for "
- "inode(%"PRId64") at offset=%"PRId64"",
- fd->inode->ino, trav_offset);
- ret = ioc_cache_validate (frame, ioc_inode, fd, trav);
+ }
+
+ __ioc_wait_on_page (trav, frame, local_offset,
+ trav_size);
+
+ if (trav->ready) {
+ /* page found in cache */
+ if (!might_need_validate && !ioc_inode->waitq) {
+ /* fresh enough */
+ gf_log (frame->this->name, GF_LOG_TRACE,
+ "cache hit for trav_offset=%"
+ PRId64"/local_offset=%"PRId64"",
+ trav_offset, local_offset);
+ waitq = __ioc_page_wakeup (trav);
+ } else {
+ /* if waitq already exists, fstat
+ * revalidate is
+ * already on the way
+ */
+ if (!ioc_inode->waitq) {
+ need_validate = 1;
+ }
+
+ ret = ioc_wait_on_inode (ioc_inode,
+ trav);
+ if (ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = -ret;
+ need_validate = 0;
+
+ waitq = __ioc_page_wakeup (trav);
+ ioc_inode_unlock (ioc_inode);
+
+ ioc_waitq_return (waitq);
+ waitq = NULL;
+ goto out;
+ }
+ }
+ }
+
+ }
+ ioc_inode_unlock (ioc_inode);
+
+ ioc_waitq_return (waitq);
+ waitq = NULL;
+
+ if (fault) {
+ fault = 0;
+ /* new page created, increase the table->cache_used */
+ ioc_page_fault (ioc_inode, frame, fd, trav_offset);
+ }
+
+ if (need_validate) {
+ need_validate = 0;
+ gf_log (frame->this->name, GF_LOG_TRACE,
+ "sending validate request for "
+ "inode(%"PRId64") at offset=%"PRId64"",
+ fd->inode->ino, trav_offset);
+ ret = ioc_cache_validate (frame, ioc_inode, fd, trav);
if (ret == -1) {
ioc_inode_lock (ioc_inode);
{
- waitq = ioc_page_wakeup (trav);
+ waitq = __ioc_page_wakeup (trav);
}
ioc_inode_unlock (ioc_inode);
@@ -1030,19 +1044,19 @@ ioc_dispatch_requests (call_frame_t *frame, ioc_inode_t *ioc_inode, fd_t *fd,
waitq = NULL;
goto out;
}
- }
+ }
- trav_offset += table->page_size;
- }
+ trav_offset += table->page_size;
+ }
out:
- ioc_frame_return (frame);
+ ioc_frame_return (frame);
- if (ioc_need_prune (ioc_inode->table)) {
- ioc_prune (ioc_inode->table);
- }
+ if (ioc_need_prune (ioc_inode->table)) {
+ ioc_prune (ioc_inode->table);
+ }
- return;
+ return;
}
@@ -1058,30 +1072,30 @@ out:
*/
int32_t
ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd,
- size_t size, off_t offset)
+ size_t size, off_t offset)
{
- uint64_t tmp_ioc_inode = 0;
- ioc_inode_t *ioc_inode = NULL;
- ioc_local_t *local = NULL;
- uint32_t weight = 0;
- ioc_table_t *table = NULL;
- uint32_t num_pages = 0;
- int32_t op_errno = -1;
+ uint64_t tmp_ioc_inode = 0;
+ ioc_inode_t *ioc_inode = NULL;
+ ioc_local_t *local = NULL;
+ uint32_t weight = 0;
+ ioc_table_t *table = NULL;
+ uint32_t num_pages = 0;
+ int32_t op_errno = -1;
if (!this) {
goto out;
}
- inode_ctx_get (fd->inode, this, &tmp_ioc_inode);
- ioc_inode = (ioc_inode_t *)(long)tmp_ioc_inode;
- if (!ioc_inode) {
- /* caching disabled, go ahead with normal readv */
- STACK_WIND (frame, ioc_readv_disabled_cbk,
+ inode_ctx_get (fd->inode, this, &tmp_ioc_inode);
+ ioc_inode = (ioc_inode_t *)(long)tmp_ioc_inode;
+ if (!ioc_inode) {
+ /* caching disabled, go ahead with normal readv */
+ STACK_WIND (frame, ioc_readv_disabled_cbk,
FIRST_CHILD (frame->this),
- FIRST_CHILD (frame->this)->fops->readv, fd, size,
+ FIRST_CHILD (frame->this)->fops->readv, fd, size,
offset);
- return 0;
- }
+ return 0;
+ }
table = this->private;
@@ -1099,7 +1113,7 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd,
num_pages = (table->cache_size / table->page_size)
+ ((table->cache_size % table->page_size)
- ? 1 : 0);
+ ? 1 : 0);
table->mem_pool
= mem_pool_new (rbthash_entry_t, num_pages);
@@ -1120,9 +1134,9 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd,
if (!ioc_inode->cache.page_table) {
ioc_inode->cache.page_table
= rbthash_table_init
- (IOC_PAGE_TABLE_BUCKET_COUNT,
- ioc_hashfn, NULL, 0,
- table->mem_pool);
+ (IOC_PAGE_TABLE_BUCKET_COUNT,
+ ioc_hashfn, NULL, 0,
+ table->mem_pool);
if (ioc_inode->cache.page_table == NULL) {
op_errno = ENOMEM;
@@ -1133,47 +1147,47 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd,
}
ioc_inode_unlock (ioc_inode);
- if (!fd_ctx_get (fd, this, NULL)) {
- /* disable caching for this fd, go ahead with normal readv */
- STACK_WIND (frame, ioc_readv_disabled_cbk,
+ if (!fd_ctx_get (fd, this, NULL)) {
+ /* disable caching for this fd, go ahead with normal readv */
+ STACK_WIND (frame, ioc_readv_disabled_cbk,
FIRST_CHILD (frame->this),
- FIRST_CHILD (frame->this)->fops->readv, fd, size,
+ FIRST_CHILD (frame->this)->fops->readv, fd, size,
offset);
- return 0;
- }
+ return 0;
+ }
- local = (ioc_local_t *) GF_CALLOC (1, sizeof (ioc_local_t),
- gf_ioc_mt_ioc_local_t);
+ local = (ioc_local_t *) GF_CALLOC (1, sizeof (ioc_local_t),
+ gf_ioc_mt_ioc_local_t);
if (local == NULL) {
gf_log (this->name, GF_LOG_ERROR, "out of memory");
op_errno = ENOMEM;
goto out;
}
- INIT_LIST_HEAD (&local->fill_list);
+ INIT_LIST_HEAD (&local->fill_list);
- frame->local = local;
- local->pending_offset = offset;
- local->pending_size = size;
- local->offset = offset;
- local->size = size;
- local->inode = ioc_inode;
+ frame->local = local;
+ local->pending_offset = offset;
+ local->pending_size = size;
+ local->offset = offset;
+ local->size = size;
+ local->inode = ioc_inode;
- gf_log (this->name, GF_LOG_TRACE,
- "NEW REQ (%p) offset = %"PRId64" && size = %"GF_PRI_SIZET"",
- frame, offset, size);
+ gf_log (this->name, GF_LOG_TRACE,
+ "NEW REQ (%p) offset = %"PRId64" && size = %"GF_PRI_SIZET"",
+ frame, offset, size);
- weight = ioc_inode->weight;
+ weight = ioc_inode->weight;
- ioc_table_lock (ioc_inode->table);
- {
- list_move_tail (&ioc_inode->inode_lru,
- &ioc_inode->table->inode_lru[weight]);
- }
- ioc_table_unlock (ioc_inode->table);
+ ioc_table_lock (ioc_inode->table);
+ {
+ list_move_tail (&ioc_inode->inode_lru,
+ &ioc_inode->table->inode_lru[weight]);
+ }
+ ioc_table_unlock (ioc_inode->table);
- ioc_dispatch_requests (frame, ioc_inode, fd, offset, size);
- return 0;
+ ioc_dispatch_requests (frame, ioc_inode, fd, offset, size);
+ return 0;
out:
STACK_UNWIND_STRICT (readv, frame, -1, op_errno, NULL, 0, NULL, NULL);
@@ -1192,20 +1206,20 @@ out:
*/
int32_t
ioc_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
struct iatt *postbuf)
{
- ioc_local_t *local = NULL;
- uint64_t ioc_inode = 0;
+ ioc_local_t *local = NULL;
+ uint64_t ioc_inode = 0;
local = frame->local;
- inode_ctx_get (local->fd->inode, this, &ioc_inode);
+ inode_ctx_get (local->fd->inode, this, &ioc_inode);
- if (ioc_inode)
- ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
+ if (ioc_inode)
+ ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
- STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, prebuf, postbuf);
- return 0;
+ STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, prebuf, postbuf);
+ return 0;
}
/*
@@ -1221,13 +1235,13 @@ ioc_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
*/
int32_t
ioc_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
- struct iovec *vector, int32_t count, off_t offset,
+ struct iovec *vector, int32_t count, off_t offset,
struct iobref *iobref)
{
- ioc_local_t *local = NULL;
- uint64_t ioc_inode = 0;
+ ioc_local_t *local = NULL;
+ uint64_t ioc_inode = 0;
- local = GF_CALLOC (1, sizeof (ioc_local_t), gf_ioc_mt_ioc_local_t);
+ local = GF_CALLOC (1, sizeof (ioc_local_t), gf_ioc_mt_ioc_local_t);
if (local == NULL) {
gf_log (this->name, GF_LOG_ERROR, "out of memory");
@@ -1235,19 +1249,19 @@ ioc_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
return 0;
}
- /* TODO: why is it not fd_ref'ed */
- local->fd = fd;
- frame->local = local;
+ /* TODO: why is it not fd_ref'ed */
+ local->fd = fd;
+ frame->local = local;
- inode_ctx_get (fd->inode, this, &ioc_inode);
- if (ioc_inode)
- ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
+ inode_ctx_get (fd->inode, this, &ioc_inode);
+ if (ioc_inode)
+ ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
- STACK_WIND (frame, ioc_writev_cbk, FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->writev, fd, vector, count, offset,
+ STACK_WIND (frame, ioc_writev_cbk, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->writev, fd, vector, count, offset,
iobref);
- return 0;
+ return 0;
}
/*
@@ -1267,9 +1281,9 @@ ioc_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *postbuf)
{
- STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno, prebuf,
+ STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno, prebuf,
postbuf);
- return 0;
+ return 0;
}
@@ -1286,13 +1300,13 @@ ioc_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
*/
int32_t
ioc_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
- struct iatt *postbuf)
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf)
{
- STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, prebuf,
+ STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, prebuf,
postbuf);
- return 0;
+ return 0;
}
@@ -1308,15 +1322,16 @@ ioc_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t
ioc_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset)
{
- uint64_t ioc_inode = 0;
- inode_ctx_get (loc->inode, this, &ioc_inode);
+ uint64_t ioc_inode = 0;
- if (ioc_inode)
- ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
+ inode_ctx_get (loc->inode, this, &ioc_inode);
- STACK_WIND (frame, ioc_truncate_cbk, FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->truncate, loc, offset);
- return 0;
+ if (ioc_inode)
+ ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
+
+ STACK_WIND (frame, ioc_truncate_cbk, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->truncate, loc, offset);
+ return 0;
}
/*
@@ -1331,66 +1346,67 @@ ioc_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset)
int32_t
ioc_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset)
{
- uint64_t ioc_inode = 0;
- inode_ctx_get (fd->inode, this, &ioc_inode);
+ uint64_t ioc_inode = 0;
+
+ inode_ctx_get (fd->inode, this, &ioc_inode);
- if (ioc_inode)
- ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
+ if (ioc_inode)
+ ioc_inode_flush ((ioc_inode_t *)(long)ioc_inode);
- STACK_WIND (frame, ioc_ftruncate_cbk, FIRST_CHILD(this),
+ STACK_WIND (frame, ioc_ftruncate_cbk, FIRST_CHILD(this),
FIRST_CHILD(this)->fops->ftruncate, fd, offset);
- return 0;
+ return 0;
}
int32_t
ioc_lk_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret,
- int32_t op_errno, struct gf_flock *lock)
+ int32_t op_errno, struct gf_flock *lock)
{
- STACK_UNWIND_STRICT (lk, frame, op_ret, op_errno, lock);
- return 0;
+ STACK_UNWIND_STRICT (lk, frame, op_ret, op_errno, lock);
+ return 0;
}
int32_t
ioc_lk (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t cmd,
struct gf_flock *lock)
{
- ioc_inode_t *ioc_inode = NULL;
- uint64_t tmp_inode = 0;
-
- inode_ctx_get (fd->inode, this, &tmp_inode);
- ioc_inode = (ioc_inode_t *)(long)tmp_inode;
- if (!ioc_inode) {
- gf_log (this->name, GF_LOG_DEBUG,
- "inode context is NULL: returning EBADFD");
- STACK_UNWIND_STRICT (lk, frame, -1, EBADFD, NULL);
- return 0;
- }
-
- ioc_inode_lock (ioc_inode);
- {
- gettimeofday (&ioc_inode->cache.tv, NULL);
- }
- ioc_inode_unlock (ioc_inode);
-
- STACK_WIND (frame, ioc_lk_cbk, FIRST_CHILD (this),
- FIRST_CHILD (this)->fops->lk, fd, cmd, lock);
-
- return 0;
+ ioc_inode_t *ioc_inode = NULL;
+ uint64_t tmp_inode = 0;
+
+ inode_ctx_get (fd->inode, this, &tmp_inode);
+ ioc_inode = (ioc_inode_t *)(long)tmp_inode;
+ if (!ioc_inode) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "inode context is NULL: returning EBADFD");
+ STACK_UNWIND_STRICT (lk, frame, -1, EBADFD, NULL);
+ return 0;
+ }
+
+ ioc_inode_lock (ioc_inode);
+ {
+ gettimeofday (&ioc_inode->cache.tv, NULL);
+ }
+ ioc_inode_unlock (ioc_inode);
+
+ STACK_WIND (frame, ioc_lk_cbk, FIRST_CHILD (this),
+ FIRST_CHILD (this)->fops->lk, fd, cmd, lock);
+
+ return 0;
}
int32_t
ioc_get_priority_list (const char *opt_str, struct list_head *first)
{
- int32_t max_pri = 1;
- char *tmp_str = NULL;
- char *tmp_str1 = NULL;
- char *tmp_str2 = NULL;
- char *dup_str = NULL;
- char *stripe_str = NULL;
- char *pattern = NULL;
- char *priority = NULL;
- char *string = NULL;
- struct ioc_priority *curr = NULL, *tmp = NULL;
+ int32_t max_pri = 1;
+ char *tmp_str = NULL;
+ char *tmp_str1 = NULL;
+ char *tmp_str2 = NULL;
+ char *dup_str = NULL;
+ char *stripe_str = NULL;
+ char *pattern = NULL;
+ char *priority = NULL;
+ char *string = NULL;
+ struct ioc_priority *curr = NULL, *tmp = NULL;
string = gf_strdup (opt_str);
if (string == NULL) {
@@ -1398,65 +1414,65 @@ ioc_get_priority_list (const char *opt_str, struct list_head *first)
goto out;
}
- /* Get the pattern for cache priority.
- * "option priority *.jpg:1,abc*:2" etc
- */
- /* TODO: inode_lru in table is statically hard-coded to 5,
- * should be changed to run-time configuration
- */
- stripe_str = strtok_r (string, ",", &tmp_str);
- while (stripe_str) {
- curr = GF_CALLOC (1, sizeof (struct ioc_priority),
+ /* Get the pattern for cache priority.
+ * "option priority *.jpg:1,abc*:2" etc
+ */
+ /* TODO: inode_lru in table is statically hard-coded to 5,
+ * should be changed to run-time configuration
+ */
+ stripe_str = strtok_r (string, ",", &tmp_str);
+ while (stripe_str) {
+ curr = GF_CALLOC (1, sizeof (struct ioc_priority),
gf_ioc_mt_ioc_priority);
if (curr == NULL) {
max_pri = -1;
goto out;
}
- list_add_tail (&curr->list, first);
+ list_add_tail (&curr->list, first);
- dup_str = gf_strdup (stripe_str);
+ dup_str = gf_strdup (stripe_str);
if (dup_str == NULL) {
max_pri = -1;
goto out;
}
- pattern = strtok_r (dup_str, ":", &tmp_str1);
- if (!pattern) {
+ pattern = strtok_r (dup_str, ":", &tmp_str1);
+ if (!pattern) {
max_pri = -1;
goto out;
}
- priority = strtok_r (NULL, ":", &tmp_str1);
- if (!priority) {
+ priority = strtok_r (NULL, ":", &tmp_str1);
+ if (!priority) {
max_pri = -1;
goto out;
}
- gf_log ("io-cache", GF_LOG_TRACE,
- "ioc priority : pattern %s : priority %s",
- pattern,
- priority);
+ gf_log ("io-cache", GF_LOG_TRACE,
+ "ioc priority : pattern %s : priority %s",
+ pattern,
+ priority);
- curr->pattern = gf_strdup (pattern);
+ curr->pattern = gf_strdup (pattern);
if (curr->pattern == NULL) {
max_pri = -1;
goto out;
}
- curr->priority = strtol (priority, &tmp_str2, 0);
- if (tmp_str2 && (*tmp_str2)) {
+ curr->priority = strtol (priority, &tmp_str2, 0);
+ if (tmp_str2 && (*tmp_str2)) {
max_pri = -1;
goto out;
} else {
- max_pri = max (max_pri, curr->priority);
+ max_pri = max (max_pri, curr->priority);
}
GF_FREE (dup_str);
dup_str = NULL;
- stripe_str = strtok_r (NULL, ",", &tmp_str);
- }
+ stripe_str = strtok_r (NULL, ",", &tmp_str);
+ }
out:
if (string != NULL) {
GF_FREE (string);
@@ -1474,7 +1490,7 @@ out:
}
}
- return max_pri;
+ return max_pri;
}
int32_t
@@ -1489,7 +1505,7 @@ mem_acct_init (xlator_t *this)
if (ret != 0) {
gf_log (this->name, GF_LOG_ERROR, "Memory accounting init"
- "failed");
+ "failed");
return ret;
}
@@ -1499,9 +1515,9 @@ mem_acct_init (xlator_t *this)
int
validate_options (xlator_t *this, char **op_errstr)
{
- int ret = 0;
- volume_opt_list_t *vol_opt = NULL;
- volume_opt_list_t *tmp;
+ int ret = 0;
+ volume_opt_list_t *vol_opt = NULL;
+ volume_opt_list_t *tmp;
if (!this) {
gf_log (this->name, GF_LOG_DEBUG, "'this' not a valid ptr");
@@ -1513,8 +1529,8 @@ validate_options (xlator_t *this, char **op_errstr)
goto out;
vol_opt = list_entry (this->volume_options.next,
- volume_opt_list_t, list);
- list_for_each_entry_safe (vol_opt, tmp, &this->volume_options, list) {
+ volume_opt_list_t, list);
+ list_for_each_entry_safe (vol_opt, tmp, &this->volume_options, list) {
ret = validate_xlator_volume_options_attacherr (this,
vol_opt->given_opt,
op_errstr);
@@ -1528,169 +1544,169 @@ out:
int
reconfigure (xlator_t *this, dict_t *options)
{
- ioc_table_t *table = NULL;
- int32_t cache_timeout;
- int64_t min_file_size = 0;
- int64_t max_file_size = 0;
- char *tmp = NULL;
- uint64_t cache_size;
- char *cache_size_string = NULL;
- int ret = 0;
+ ioc_table_t *table = NULL;
+ int32_t cache_timeout = 0;
+ int64_t min_file_size = 0;
+ int64_t max_file_size = 0;
+ char *tmp = NULL;
+ uint64_t cache_size = 0;
+ char *cache_size_string = NULL;
+ int ret = 0;
if (!this || !this->private)
goto out;
- table = this->private;
-
- ioc_table_lock (table);
- {
- if (dict_get (options, "cache-timeout")) {
- cache_timeout =
- data_to_uint32 (dict_get (options,
- "cache-timeout"));
- if (cache_timeout < 0){
- gf_log (this->name, GF_LOG_WARNING,
- "cache-timeout %d seconds invalid,"
- " has to be >=0", cache_timeout);
- goto out;
- }
-
-
- if (cache_timeout > 60){
- gf_log (this->name, GF_LOG_WARNING,
- "cache-timeout %d seconds invalid,"
- " has to be <=60", cache_timeout);
- goto out;
- }
-
- table->cache_timeout = cache_timeout;
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Reconfiguring %d seconds to"
- " revalidate cache", table->cache_timeout);
- }
+ table = this->private;
+
+ ioc_table_lock (table);
+ {
+ if (dict_get (options, "cache-timeout")) {
+ cache_timeout =
+ data_to_uint32 (dict_get (options,
+ "cache-timeout"));
+ if (cache_timeout < 0){
+ gf_log (this->name, GF_LOG_WARNING,
+ "cache-timeout %d seconds invalid,"
+ " has to be >=0", cache_timeout);
+ goto out;
+ }
+
+
+ if (cache_timeout > 60){
+ gf_log (this->name, GF_LOG_WARNING,
+ "cache-timeout %d seconds invalid,"
+ " has to be <=60", cache_timeout);
+ goto out;
+ }
+
+ table->cache_timeout = cache_timeout;
+
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Reconfiguring %d seconds to"
+ " revalidate cache", table->cache_timeout);
+ }
else
table->cache_timeout = 1;
- if (dict_get (options, "cache-size"))
- cache_size_string = data_to_str (dict_get (options,
- "cache-size"));
- if (cache_size_string) {
- if (gf_string2bytesize (cache_size_string,
- &cache_size) != 0) {
- gf_log ("io-cache", GF_LOG_ERROR,
- "invalid number format \"%s\" of "
- "\"option cache-size\" Defaulting"
- "to old value", cache_size_string);
- goto out;
- }
+ if (dict_get (options, "cache-size"))
+ cache_size_string = data_to_str (dict_get (options,
+ "cache-size"));
+ if (cache_size_string) {
+ if (gf_string2bytesize (cache_size_string,
+ &cache_size) != 0) {
+ gf_log ("io-cache", GF_LOG_ERROR,
+ "invalid number format \"%s\" of "
+ "\"option cache-size\" Defaulting"
+ "to old value", cache_size_string);
+ goto out;
+ }
- if (cache_size < (4 * GF_UNIT_MB)) {
- gf_log(this->name, GF_LOG_ERROR,
+ if (cache_size < (4 * GF_UNIT_MB)) {
+ gf_log(this->name, GF_LOG_ERROR,
"Reconfiguration"
"'option cache-size %s' failed , "
"Max value can be 4MiB, Defaulting to "
"old value (%"PRIu64")",
cache_size_string, table->cache_size);
- goto out;
- }
+ goto out;
+ }
- if (cache_size > (6 * GF_UNIT_GB)) {
- gf_log (this->name, GF_LOG_ERROR,
+ if (cache_size > (6 * GF_UNIT_GB)) {
+ gf_log (this->name, GF_LOG_ERROR,
"Reconfiguration"
"'option cache-size %s' failed , "
"Max value can be 6GiB, Defaulting to "
"old value (%"PRIu64")",
cache_size_string, table->cache_size);
- goto out;
- }
+ goto out;
+ }
- gf_log (this->name, GF_LOG_DEBUG, "Reconfiguring "
- " cache-size %"PRIu64"", cache_size);
- table->cache_size = cache_size;
- }
+ gf_log (this->name, GF_LOG_DEBUG, "Reconfiguring "
+ " cache-size %"PRIu64"", cache_size);
+ table->cache_size = cache_size;
+ }
else
table->cache_size = IOC_CACHE_SIZE;
- if (dict_get (options, "priority")) {
- char *option_list = data_to_str (dict_get (options,
- "priority"));
- gf_log (this->name, GF_LOG_TRACE,
- "option path %s", option_list);
- /* parse the list of pattern:priority */
- table->max_pri = ioc_get_priority_list (option_list,
- &table->priority_list);
-
- if (table->max_pri == -1) {
- ret = -1;
- goto out;
- }
- table->max_pri ++;
- }
-
-
-
- min_file_size = table->min_file_size;
- tmp = data_to_str (dict_get (options, "min-file-size"));
- if (tmp != NULL) {
- if (gf_string2bytesize (tmp,
- (uint64_t *)&min_file_size)
- != 0) {
- gf_log ("io-cache", GF_LOG_ERROR,
- "invalid number format \"%s\" of "
- "\"option min-file-size\"", tmp);
- ret = -1;
- goto out;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Reconfiguring min-file-size %"PRIu64"",
- table->min_file_size);
- }
-
- max_file_size = table->max_file_size;
- tmp = data_to_str (dict_get (options, "max-file-size"));
- if (tmp != NULL) {
- if (gf_string2bytesize (tmp,
- (uint64_t *)&max_file_size)
- != 0) {
- gf_log ("io-cache", GF_LOG_ERROR,
- "invalid number format \"%s\" of "
- "\"option max-file-size\"", tmp);
- ret = -1;
- goto out;
- }
-
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Reconfiguring max-file-size %"PRIu64"",
- table->max_file_size);
- }
+ if (dict_get (options, "priority")) {
+ char *option_list = data_to_str (dict_get (options,
+ "priority"));
+ gf_log (this->name, GF_LOG_TRACE,
+ "option path %s", option_list);
+ /* parse the list of pattern:priority */
+ table->max_pri = ioc_get_priority_list (option_list,
+ &table->priority_list);
+
+ if (table->max_pri == -1) {
+ ret = -1;
+ goto out;
+ }
+ table->max_pri ++;
+ }
+
+
+
+ min_file_size = table->min_file_size;
+ tmp = data_to_str (dict_get (options, "min-file-size"));
+ if (tmp != NULL) {
+ if (gf_string2bytesize (tmp,
+ (uint64_t *)&min_file_size)
+ != 0) {
+ gf_log ("io-cache", GF_LOG_ERROR,
+ "invalid number format \"%s\" of "
+ "\"option min-file-size\"", tmp);
+ ret = -1;
+ goto out;
+ }
+
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Reconfiguring min-file-size %"PRIu64"",
+ table->min_file_size);
+ }
+
+ max_file_size = table->max_file_size;
+ tmp = data_to_str (dict_get (options, "max-file-size"));
+ if (tmp != NULL) {
+ if (gf_string2bytesize (tmp,
+ (uint64_t *)&max_file_size)
+ != 0) {
+ gf_log ("io-cache", GF_LOG_ERROR,
+ "invalid number format \"%s\" of "
+ "\"option max-file-size\"", tmp);
+ ret = -1;
+ goto out;
+ }
+
+
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Reconfiguring max-file-size %"PRIu64"",
+ table->max_file_size);
+ }
if ((max_file_size >= 0) && (min_file_size > max_file_size)) {
gf_log ("io-cache", GF_LOG_ERROR, "minimum size (%"
PRIu64") of a file that can be cached is "
"greater than maximum size (%"PRIu64"). "
- "Hence Defaulting to old value",
+ "Hence Defaulting to old value",
table->min_file_size, table->max_file_size);
- goto out;
- }
+ goto out;
+ }
- table->min_file_size = min_file_size;
- table->max_file_size = max_file_size;
+ table->min_file_size = min_file_size;
+ table->max_file_size = max_file_size;
if (!data_to_str (dict_get (options, "min-file-size")))
- table->min_file_size = 0;
+ table->min_file_size = 0;
if (data_to_str (dict_get (options, "max-file-size")))
- table->max_file_size = 0;
- }
+ table->max_file_size = 0;
+ }
- ioc_table_unlock (table);
+ ioc_table_unlock (table);
out:
- return ret;
+ return ret;
}
@@ -1702,80 +1718,82 @@ out:
int32_t
init (xlator_t *this)
{
- ioc_table_t *table = NULL;
- dict_t *options = this->options;
- uint32_t index = 0;
- char *cache_size_string = NULL, *tmp = NULL;
- int32_t ret = -1;
- glusterfs_ctx_t *ctx = NULL;
- data_t *data = 0;
-
- if (!this->children || this->children->next) {
- gf_log (this->name, GF_LOG_ERROR,
- "FATAL: io-cache not configured with exactly "
- "one child");
+ ioc_table_t *table = NULL;
+ dict_t *options = NULL;
+ uint32_t index = 0;
+ char *cache_size_string = NULL, *tmp = NULL;
+ int32_t ret = -1;
+ glusterfs_ctx_t *ctx = NULL;
+ data_t *data = 0;
+
+ options = this->options;
+
+ if (!this->children || this->children->next) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "FATAL: io-cache not configured with exactly "
+ "one child");
goto out;
- }
+ }
- if (!this->parents) {
- gf_log (this->name, GF_LOG_WARNING,
- "dangling volume. check volfile ");
- }
+ if (!this->parents) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "dangling volume. check volfile ");
+ }
- table = (void *) GF_CALLOC (1, sizeof (*table), gf_ioc_mt_ioc_table_t);
+ table = (void *) GF_CALLOC (1, sizeof (*table), gf_ioc_mt_ioc_table_t);
if (table == NULL) {
gf_log (this->name, GF_LOG_ERROR, "out of memory");
goto out;
}
- table->xl = this;
- table->page_size = this->ctx->page_size;
- table->cache_size = IOC_CACHE_SIZE;
+ table->xl = this;
+ table->page_size = this->ctx->page_size;
+ table->cache_size = IOC_CACHE_SIZE;
data = dict_get (options, "cache-size");
if (data)
- cache_size_string = data_to_str (data);
-
- if (cache_size_string) {
- if (gf_string2bytesize (cache_size_string,
- &table->cache_size) != 0) {
- gf_log ("io-cache", GF_LOG_ERROR,
- "invalid number format \"%s\" of "
- "\"option cache-size\"",
- cache_size_string);
+ cache_size_string = data_to_str (data);
+
+ if (cache_size_string) {
+ if (gf_string2bytesize (cache_size_string,
+ &table->cache_size) != 0) {
+ gf_log ("io-cache", GF_LOG_ERROR,
+ "invalid number format \"%s\" of "
+ "\"option cache-size\"",
+ cache_size_string);
goto out;
- }
+ }
- gf_log (this->name, GF_LOG_TRACE,
- "using cache-size %"PRIu64"", table->cache_size);
- }
+ gf_log (this->name, GF_LOG_TRACE,
+ "using cache-size %"PRIu64"", table->cache_size);
+ }
- table->cache_timeout = 1;
+ table->cache_timeout = 1;
- data = dict_get (options, "cache-timeout");
+ data = dict_get (options, "cache-timeout");
if (data) {
- table->cache_timeout = data_to_uint32 (data);
- gf_log (this->name, GF_LOG_TRACE,
- "Using %d seconds to revalidate cache",
- table->cache_timeout);
- }
-
- INIT_LIST_HEAD (&table->priority_list);
- table->max_pri = 1;
+ table->cache_timeout = data_to_uint32 (data);
+ gf_log (this->name, GF_LOG_TRACE,
+ "Using %d seconds to revalidate cache",
+ table->cache_timeout);
+ }
+
+ INIT_LIST_HEAD (&table->priority_list);
+ table->max_pri = 1;
data = dict_get (options, "priority");
if (data) {
- char *option_list = data_to_str (data);
- gf_log (this->name, GF_LOG_TRACE,
- "option path %s", option_list);
- /* parse the list of pattern:priority */
- table->max_pri = ioc_get_priority_list (option_list,
- &table->priority_list);
-
- if (table->max_pri == -1) {
+ char *option_list = data_to_str (data);
+ gf_log (this->name, GF_LOG_TRACE,
+ "option path %s", option_list);
+ /* parse the list of pattern:priority */
+ table->max_pri = ioc_get_priority_list (option_list,
+ &table->priority_list);
+
+ if (table->max_pri == -1) {
goto out;
}
- }
- table->max_pri ++;
+ }
+ table->max_pri ++;
table->min_file_size = 0;
@@ -1784,16 +1802,17 @@ init (xlator_t *this)
tmp = data_to_str (data);
if (tmp != NULL) {
- if (gf_string2bytesize (tmp,
- (uint64_t *)&table->min_file_size) != 0) {
- gf_log ("io-cache", GF_LOG_ERROR,
- "invalid number format \"%s\" of "
- "\"option min-file-size\"", tmp);
+ if (gf_string2bytesize (tmp,
+ (uint64_t *)&table->min_file_size)
+ != 0) {
+ gf_log ("io-cache", GF_LOG_ERROR,
+ "invalid number format \"%s\" of "
+ "\"option min-file-size\"", tmp);
goto out;
- }
+ }
- gf_log (this->name, GF_LOG_TRACE,
- "using min-file-size %"PRIu64"", table->min_file_size);
+ gf_log (this->name, GF_LOG_TRACE,
+ "using min-file-size %"PRIu64"", table->min_file_size);
}
tmp = NULL;
@@ -1804,7 +1823,8 @@ init (xlator_t *this)
if (tmp != NULL) {
if (gf_string2bytesize (tmp,
- (uint64_t *)&table->max_file_size) != 0) {
+ (uint64_t *)&table->max_file_size)
+ != 0) {
gf_log ("io-cache", GF_LOG_ERROR,
"invalid number format \"%s\" of "
"\"option max-file-size\"", tmp);
@@ -1814,29 +1834,29 @@ init (xlator_t *this)
gf_log (this->name, GF_LOG_TRACE,
"using max-file-size %"PRIu64"", table->max_file_size);
}
- INIT_LIST_HEAD (&table->inodes);
+ INIT_LIST_HEAD (&table->inodes);
if ((table->max_file_size >= 0)
&& (table->min_file_size > table->max_file_size)) {
- gf_log ("io-cache", GF_LOG_ERROR, "minimum size (%"
- PRIu64") of a file that can be cached is "
- "greater than maximum size (%"PRIu64")",
- table->min_file_size, table->max_file_size);
- goto out;
+ gf_log ("io-cache", GF_LOG_ERROR, "minimum size (%"
+ PRIu64") of a file that can be cached is "
+ "greater than maximum size (%"PRIu64")",
+ table->min_file_size, table->max_file_size);
+ goto out;
}
- table->inode_lru = GF_CALLOC (table->max_pri,
+ table->inode_lru = GF_CALLOC (table->max_pri,
sizeof (struct list_head),
gf_ioc_mt_list_head);
if (table->inode_lru == NULL) {
goto out;
}
- for (index = 0; index < (table->max_pri); index++)
- INIT_LIST_HEAD (&table->inode_lru[index]);
+ for (index = 0; index < (table->max_pri); index++)
+ INIT_LIST_HEAD (&table->inode_lru[index]);
- pthread_mutex_init (&table->table_lock, NULL);
- this->private = table;
+ pthread_mutex_init (&table->table_lock, NULL);
+ this->private = table;
ret = 0;
ctx = this->ctx;
@@ -1850,15 +1870,15 @@ out:
}
}
- return ret;
+ return ret;
}
int
ioc_priv_dump (xlator_t *this)
{
- ioc_table_t *priv = NULL;
- char key_prefix[GF_DUMP_MAX_BUF_LEN];
- char key[GF_DUMP_MAX_BUF_LEN];
+ ioc_table_t *priv = NULL;
+ char key_prefix[GF_DUMP_MAX_BUF_LEN] = {0, };
+ char key[GF_DUMP_MAX_BUF_LEN] = {0, };
if (!this || !this->private)
goto out;
@@ -1890,7 +1910,7 @@ out:
void
fini (xlator_t *this)
{
- ioc_table_t *table = NULL;
+ ioc_table_t *table = NULL;
table = this->private;
@@ -1902,22 +1922,22 @@ fini (xlator_t *this)
table->mem_pool = NULL;
}
- pthread_mutex_destroy (&table->table_lock);
- GF_FREE (table);
+ pthread_mutex_destroy (&table->table_lock);
+ GF_FREE (table);
- this->private = NULL;
- return;
+ this->private = NULL;
+ return;
}
struct xlator_fops fops = {
- .open = ioc_open,
- .create = ioc_create,
- .readv = ioc_readv,
- .writev = ioc_writev,
- .truncate = ioc_truncate,
- .ftruncate = ioc_ftruncate,
- .lookup = ioc_lookup,
- .lk = ioc_lk,
+ .open = ioc_open,
+ .create = ioc_create,
+ .readv = ioc_readv,
+ .writev = ioc_writev,
+ .truncate = ioc_truncate,
+ .ftruncate = ioc_ftruncate,
+ .lookup = ioc_lookup,
+ .lk = ioc_lk,
.setattr = ioc_setattr,
.mknod = ioc_mknod
};
@@ -1928,29 +1948,29 @@ struct xlator_dumpops dumpops = {
};
struct xlator_cbks cbks = {
- .forget = ioc_forget,
- .release = ioc_release
+ .forget = ioc_forget,
+ .release = ioc_release
};
struct volume_options options[] = {
- { .key = {"priority"},
- .type = GF_OPTION_TYPE_ANY
- },
- { .key = {"cache-timeout", "force-revalidate-timeout"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0,
- .max = 60
- },
- { .key = {"cache-size"},
- .type = GF_OPTION_TYPE_SIZET,
- .min = 4 * GF_UNIT_MB,
- .max = 6 * GF_UNIT_GB
- },
+ { .key = {"priority"},
+ .type = GF_OPTION_TYPE_ANY
+ },
+ { .key = {"cache-timeout", "force-revalidate-timeout"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0,
+ .max = 60
+ },
+ { .key = {"cache-size"},
+ .type = GF_OPTION_TYPE_SIZET,
+ .min = 4 * GF_UNIT_MB,
+ .max = 6 * GF_UNIT_GB
+ },
{ .key = {"min-file-size"},
.type = GF_OPTION_TYPE_SIZET,
},
{ .key = {"max-file-size"},
.type = GF_OPTION_TYPE_SIZET,
},
- { .key = {NULL} },
+ { .key = {NULL} },
};
diff --git a/xlators/performance/io-cache/src/io-cache.h b/xlators/performance/io-cache/src/io-cache.h
index 5d05264..7fefc5f 100644
--- a/xlators/performance/io-cache/src/io-cache.h
+++ b/xlators/performance/io-cache/src/io-cache.h
@@ -198,29 +198,26 @@ ioc_readv_disabled_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iobref *iobref);
ioc_page_t *
-ioc_page_get (ioc_inode_t *ioc_inode, off_t offset);
+__ioc_page_get (ioc_inode_t *ioc_inode, off_t offset);
ioc_page_t *
-ioc_page_create (ioc_inode_t *ioc_inode, off_t offset);
+__ioc_page_create (ioc_inode_t *ioc_inode, off_t offset);
void
ioc_page_fault (ioc_inode_t *ioc_inode, call_frame_t *frame, fd_t *fd,
off_t offset);
void
-ioc_wait_on_page (ioc_page_t *page, call_frame_t *frame, off_t offset,
+__ioc_wait_on_page (ioc_page_t *page, call_frame_t *frame, off_t offset,
size_t size);
ioc_waitq_t *
-ioc_page_wakeup (ioc_page_t *page);
+__ioc_page_wakeup (ioc_page_t *page);
void
ioc_page_flush (ioc_page_t *page);
ioc_waitq_t *
-ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno);
-
-void
-ioc_page_purge (ioc_page_t *page);
+__ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno);
void
ioc_frame_return (call_frame_t *frame);
@@ -318,7 +315,7 @@ ioc_inode_t *
ioc_inode_update (ioc_table_t *table, inode_t *inode, uint32_t weight);
int64_t
-ioc_page_destroy (ioc_page_t *page);
+__ioc_page_destroy (ioc_page_t *page);
int64_t
__ioc_inode_flush (ioc_inode_t *ioc_inode);
diff --git a/xlators/performance/io-cache/src/ioc-inode.c b/xlators/performance/io-cache/src/ioc-inode.c
index e268cac..a305d03 100644
--- a/xlators/performance/io-cache/src/ioc-inode.c
+++ b/xlators/performance/io-cache/src/ioc-inode.c
@@ -36,6 +36,7 @@ void *
str_to_ptr (char *string)
{
void *ptr = NULL;
+
GF_VALIDATE_OR_GOTO ("io-cache", string, out);
ptr = (void *)strtoul (string, NULL, 16);
@@ -122,9 +123,10 @@ ioc_inode_wakeup (call_frame_t *frame, ioc_inode_t *ioc_inode,
ioc_inode_lock (ioc_inode);
{
page_waitq =
- ioc_page_wakeup (waiter_page);
+ __ioc_page_wakeup (waiter_page);
}
ioc_inode_unlock (ioc_inode);
+
if (page_waitq)
ioc_waitq_return (page_waitq);
} else {
@@ -132,17 +134,19 @@ ioc_inode_wakeup (call_frame_t *frame, ioc_inode_t *ioc_inode,
* page->ready = 0, to avoid double faults
*/
ioc_inode_lock (ioc_inode);
-
- if (waiter_page->ready) {
- waiter_page->ready = 0;
- need_fault = 1;
- } else {
- gf_log (frame->this->name, GF_LOG_TRACE,
- "validate frame(%p) is waiting"
- "for in-transit page = %p",
- frame, waiter_page);
+ {
+ if (waiter_page->ready) {
+ waiter_page->ready = 0;
+ need_fault = 1;
+ } else {
+ gf_log (frame->this->name,
+ GF_LOG_TRACE,
+ "validate frame(%p) is "
+ "waiting for "
+ "in-transit page = %p",
+ frame, waiter_page);
+ }
}
-
ioc_inode_unlock (ioc_inode);
if (need_fault) {
diff --git a/xlators/performance/io-cache/src/page.c b/xlators/performance/io-cache/src/page.c
index 0721f5f..895775d 100644
--- a/xlators/performance/io-cache/src/page.c
+++ b/xlators/performance/io-cache/src/page.c
@@ -46,7 +46,7 @@ out:
ioc_page_t *
-ioc_page_get (ioc_inode_t *ioc_inode, off_t offset)
+__ioc_page_get (ioc_inode_t *ioc_inode, off_t offset)
{
ioc_page_t *page = NULL;
ioc_table_t *table = NULL;
@@ -72,14 +72,34 @@ out:
}
+ioc_page_t *
+ioc_page_get (ioc_inode_t *ioc_inode, off_t offset)
+{
+ ioc_page_t *page = NULL;
+
+ if (ioc_inode == NULL) {
+ goto out;
+ }
+
+ ioc_inode_lock (ioc_inode);
+ {
+ page = __ioc_page_get (ioc_inode, offset);
+ }
+ ioc_inode_unlock (ioc_inode);
+
+out:
+ return page;
+}
+
+
/*
- * ioc_page_destroy -
+ * __ioc_page_destroy -
*
* @page:
*
*/
int64_t
-ioc_page_destroy (ioc_page_t *page)
+__ioc_page_destroy (ioc_page_t *page)
{
int64_t page_size = 0;
@@ -119,6 +139,63 @@ out:
return page_size;
}
+
+int64_t
+ioc_page_destroy (ioc_page_t *page)
+{
+ int64_t ret = 0;
+
+ if (page == NULL) {
+ goto out;
+ }
+
+ ioc_inode_lock (page->inode);
+ {
+ ret = __ioc_page_destroy (page);
+ }
+ ioc_inode_unlock (page->inode);
+
+out:
+ return ret;
+}
+
+int32_t
+__ioc_inode_prune (ioc_inode_t *curr, uint64_t *size_pruned,
+ uint64_t size_to_prune, uint32_t index)
+{
+ ioc_page_t *page = NULL, *next = NULL;
+ int32_t ret = 0;
+ ioc_table_t *table = NULL;
+
+ if (curr == NULL) {
+ goto out;
+ }
+
+ table = curr->table;
+
+ list_for_each_entry_safe (page, next, &curr->cache.page_lru, page_lru) {
+ *size_pruned += page->size;
+ ret = __ioc_page_destroy (page);
+
+ if (ret != -1)
+ table->cache_used -= ret;
+
+ gf_log (table->xl->name, GF_LOG_TRACE,
+ "index = %d && table->cache_used = %"PRIu64" && table->"
+ "cache_size = %"PRIu64, index, table->cache_used,
+ table->cache_size);
+
+ if ((*size_pruned) >= size_to_prune)
+ break;
+ }
+
+ if (ioc_empty (&curr->cache)) {
+ list_del_init (&curr->inode_lru);
+ }
+
+out:
+ return 0;
+}
/*
* ioc_prune - prune the cache. we have a limit to the number of pages we
* can have in-memory.
@@ -130,8 +207,6 @@ int32_t
ioc_prune (ioc_table_t *table)
{
ioc_inode_t *curr = NULL, *next_ioc_inode = NULL;
- ioc_page_t *page = NULL, *next = NULL;
- int32_t ret = -1;
int32_t index = 0;
uint64_t size_to_prune = 0;
uint64_t size_pruned = 0;
@@ -149,37 +224,11 @@ ioc_prune (ioc_table_t *table)
/* prune page-by-page for this inode, till
* we reach the equilibrium */
ioc_inode_lock (curr);
- /* { */
-
- list_for_each_entry_safe (page, next,
- &curr->cache.page_lru,
- page_lru) {
- /* done with all pages, and not
- * reached equilibrium yet??
- * continue with next inode in
- * lru_list */
- size_pruned += page->size;
- ret = ioc_page_destroy (page);
-
- if (ret != -1)
- table->cache_used -= ret;
-
- gf_log (table->xl->name, GF_LOG_TRACE,
- "index = %d && table->cache_"
- "used = %"PRIu64" && table->"
- "cache_size = %"PRIu64,
- index, table->cache_used,
- table->cache_size);
-
- if (size_pruned >= size_to_prune)
- break;
- } /* list_for_each_entry_safe(page...) */
-
- if (ioc_empty (&curr->cache)) {
- list_del_init (&curr->inode_lru);
+ {
+ __ioc_inode_prune (curr, &size_pruned,
+ size_to_prune,
+ index);
}
-
- /* } */
ioc_inode_unlock (curr);
if (size_pruned >= size_to_prune)
@@ -198,14 +247,14 @@ out:
}
/*
- * ioc_page_create - create a new page.
+ * __ioc_page_create - create a new page.
*
* @ioc_inode:
* @offset:
*
*/
ioc_page_t *
-ioc_page_create (ioc_inode_t *ioc_inode, off_t offset)
+__ioc_page_create (ioc_inode_t *ioc_inode, off_t offset)
{
ioc_table_t *table = NULL;
ioc_page_t *page = NULL;
@@ -258,8 +307,8 @@ out:
*
*/
void
-ioc_wait_on_page (ioc_page_t *page, call_frame_t *frame, off_t offset,
- size_t size)
+__ioc_wait_on_page (ioc_page_t *page, call_frame_t *frame, off_t offset,
+ size_t size)
{
ioc_waitq_t *waitq = NULL;
ioc_local_t *local = NULL;
@@ -414,14 +463,14 @@ ioc_fault_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
if (op_ret < 0) {
/* error, readv returned -1 */
- page = ioc_page_get (ioc_inode, offset);
+ page = __ioc_page_get (ioc_inode, offset);
if (page)
- waitq = ioc_page_error (page, op_ret,
- op_errno);
+ waitq = __ioc_page_error (page, op_ret,
+ op_errno);
} else {
gf_log (ioc_inode->table->xl->name, GF_LOG_TRACE,
"op_ret = %d", op_ret);
- page = ioc_page_get (ioc_inode, offset);
+ page = __ioc_page_get (ioc_inode, offset);
if (!page) {
/* page was flushed */
/* some serious bug ? */
@@ -439,11 +488,12 @@ ioc_fault_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
/* keep a copy of the page for our cache */
page->vector = iov_dup (vector, count);
if (page->vector == NULL) {
- page = ioc_page_get (ioc_inode, offset);
+ page = __ioc_page_get (ioc_inode,
+ offset);
if (page != NULL)
- waitq = ioc_page_error (page,
- -1,
- ENOMEM);
+ waitq = __ioc_page_error (page,
+ -1,
+ ENOMEM);
goto unlock;
}
@@ -474,7 +524,7 @@ ioc_fault_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
/* wake up all the frames waiting on
* this page, including
* the frame which triggered fault */
- waitq = ioc_page_wakeup (page);
+ waitq = __ioc_page_wakeup (page);
} /* if(page->waitq) */
} /* if(!page)...else */
} /* if(op_ret < 0)...else */
@@ -584,19 +634,24 @@ ioc_page_fault (ioc_inode_t *ioc_inode, call_frame_t *frame, fd_t *fd,
return;
err:
- page = ioc_page_get (ioc_inode, offset);
- if (page != NULL) {
- waitq = ioc_page_error (page, op_ret, op_errno);
- if (waitq != NULL) {
- ioc_waitq_return (waitq);
+ ioc_inode_lock (ioc_inode);
+ {
+ page = __ioc_page_get (ioc_inode, offset);
+ if (page != NULL) {
+ waitq = __ioc_page_error (page, op_ret, op_errno);
}
}
+ ioc_inode_unlock (ioc_inode);
+
+ if (waitq != NULL) {
+ ioc_waitq_return (waitq);
+ }
}
int32_t
-ioc_frame_fill (ioc_page_t *page, call_frame_t *frame, off_t offset,
- size_t size)
+__ioc_frame_fill (ioc_page_t *page, call_frame_t *frame, off_t offset,
+ size_t size)
{
ioc_local_t *local = NULL;
ioc_fill_t *fill = NULL;
@@ -720,6 +775,7 @@ ioc_frame_fill (ioc_page_t *page, call_frame_t *frame, off_t offset,
}
}
}
+
local->op_ret += copy_size;
}
@@ -867,7 +923,7 @@ ioc_frame_return (call_frame_t *frame)
* to be called only when a frame is waiting on an in-transit page
*/
ioc_waitq_t *
-ioc_page_wakeup (ioc_page_t *page)
+__ioc_page_wakeup (ioc_page_t *page)
{
ioc_waitq_t *waitq = NULL, *trav = NULL;
call_frame_t *frame = NULL;
@@ -885,8 +941,8 @@ ioc_page_wakeup (ioc_page_t *page)
for (trav = waitq; trav; trav = trav->next) {
frame = trav->data;
- ret = ioc_frame_fill (page, frame, trav->pending_offset,
- trav->pending_size);
+ ret = __ioc_frame_fill (page, frame, trav->pending_offset,
+ trav->pending_size);
if (ret == -1) {
break;
}
@@ -897,6 +953,7 @@ out:
}
+
/*
* ioc_page_error -
* @page:
@@ -905,7 +962,7 @@ out:
*
*/
ioc_waitq_t *
-ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno)
+__ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno)
{
ioc_waitq_t *waitq = NULL, *trav = NULL;
call_frame_t *frame = NULL;
@@ -937,7 +994,7 @@ ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno)
}
table = page->inode->table;
- ret = ioc_page_destroy (page);
+ ret = __ioc_page_destroy (page);
if (ret != -1) {
table->cache_used -= ret;
@@ -946,3 +1003,29 @@ ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno)
out:
return waitq;
}
+
+/*
+ * ioc_page_error -
+ * @page:
+ * @op_ret:
+ * @op_errno:
+ *
+ */
+ioc_waitq_t *
+ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno)
+{
+ ioc_waitq_t *waitq = NULL;
+
+ if (page == NULL) {
+ goto out;
+ }
+
+ ioc_inode_lock (page->inode);
+ {
+ waitq = __ioc_page_error (page, op_ret, op_errno);
+ }
+ ioc_inode_unlock (page->inode);
+
+out:
+ return waitq;
+}