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-rw-r--r--xlators/performance/io-cache/src/ioc-inode.c228
1 files changed, 116 insertions, 112 deletions
diff --git a/xlators/performance/io-cache/src/ioc-inode.c b/xlators/performance/io-cache/src/ioc-inode.c
index bbf46d9357f..deb79743a26 100644
--- a/xlators/performance/io-cache/src/ioc-inode.c
+++ b/xlators/performance/io-cache/src/ioc-inode.c
@@ -35,10 +35,10 @@ extern int ioc_log2_page_size;
void *
str_to_ptr (char *string)
{
- void *ptr = NULL;
+ void *ptr = NULL;
ptr = (void *)strtoul (string, NULL, 16);
- return ptr;
+ return ptr;
}
@@ -51,102 +51,106 @@ char *
ptr_to_str (void *ptr)
{
int ret = 0;
- char *str = NULL;
- ret = gf_asprintf (&str, "%p", ptr);
+ char *str = NULL;
+
+ ret = gf_asprintf (&str, "%p", ptr);
if (-1 == ret) {
- gf_log ("ioc", GF_LOG_ERROR,
+ gf_log ("ioc", GF_LOG_ERROR,
"asprintf failed while converting ptr to str");
return NULL;
}
- return str;
+ return str;
}
void
-ioc_inode_wakeup (call_frame_t *frame, ioc_inode_t *ioc_inode,
+ioc_inode_wakeup (call_frame_t *frame, ioc_inode_t *ioc_inode,
struct iatt *stbuf)
{
- ioc_waitq_t *waiter = NULL, *waited = NULL;
- ioc_waitq_t *page_waitq = NULL;
- int8_t cache_still_valid = 1;
- ioc_local_t *local = NULL;
- int8_t need_fault = 0;
- ioc_page_t *waiter_page = NULL;
+ ioc_waitq_t *waiter = NULL, *waited = NULL;
+ ioc_waitq_t *page_waitq = NULL;
+ int8_t cache_still_valid = 1;
+ ioc_local_t *local = NULL;
+ int8_t need_fault = 0;
+ ioc_page_t *waiter_page = NULL;
local = frame->local;
- ioc_inode_lock (ioc_inode);
- {
- waiter = ioc_inode->waitq;
- ioc_inode->waitq = NULL;
- }
- ioc_inode_unlock (ioc_inode);
-
- if (stbuf)
- cache_still_valid = ioc_cache_still_valid (ioc_inode, stbuf);
- else
- cache_still_valid = 0;
-
- if (!waiter) {
- gf_log (frame->this->name, GF_LOG_DEBUG,
- "cache validate called without any "
- "page waiting to be validated");
- }
-
- while (waiter) {
- waiter_page = waiter->data;
- page_waitq = NULL;
-
- if (waiter_page) {
- if (cache_still_valid) {
- /* cache valid, wake up page */
- ioc_inode_lock (ioc_inode);
- {
- page_waitq =
- ioc_page_wakeup (waiter_page);
- }
- ioc_inode_unlock (ioc_inode);
- if (page_waitq)
- ioc_waitq_return (page_waitq);
- } else {
- /* cache invalid, generate page fault and set
- * 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);
- }
-
- ioc_inode_unlock (ioc_inode);
-
- if (need_fault) {
- need_fault = 0;
- ioc_page_fault (ioc_inode, frame,
- local->fd,
- waiter_page->offset);
- }
- }
- }
-
- waited = waiter;
- waiter = waiter->next;
-
- waited->data = NULL;
- GF_FREE (waited);
- }
+ ioc_inode_lock (ioc_inode);
+ {
+ waiter = ioc_inode->waitq;
+ ioc_inode->waitq = NULL;
+ }
+ ioc_inode_unlock (ioc_inode);
+
+ if (stbuf)
+ cache_still_valid = ioc_cache_still_valid (ioc_inode, stbuf);
+ else
+ cache_still_valid = 0;
+
+ if (!waiter) {
+ gf_log (frame->this->name, GF_LOG_DEBUG,
+ "cache validate called without any "
+ "page waiting to be validated");
+ }
+
+ while (waiter) {
+ waiter_page = waiter->data;
+ page_waitq = NULL;
+
+ if (waiter_page) {
+ if (cache_still_valid) {
+ /* cache valid, wake up page */
+ ioc_inode_lock (ioc_inode);
+ {
+ page_waitq =
+ __ioc_page_wakeup (waiter_page);
+ }
+ ioc_inode_unlock (ioc_inode);
+
+ if (page_waitq)
+ ioc_waitq_return (page_waitq);
+ } else {
+ /* cache invalid, generate page fault and set
+ * 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);
+ }
+ }
+ ioc_inode_unlock (ioc_inode);
+
+ if (need_fault) {
+ need_fault = 0;
+ ioc_page_fault (ioc_inode, frame,
+ local->fd,
+ waiter_page->offset);
+ }
+ }
+ }
+
+ waited = waiter;
+ waiter = waiter->next;
+
+ waited->data = NULL;
+ GF_FREE (waited);
+ }
}
-/*
- * ioc_inode_update - create a new ioc_inode_t structure and add it to
- * the table table. fill in the fields which are derived
+/*
+ * ioc_inode_update - create a new ioc_inode_t structure and add it to
+ * the table table. fill in the fields which are derived
* from inode_t corresponding to the file
- *
+ *
* @table: io-table structure
* @inode: inode structure
*
@@ -155,60 +159,60 @@ ioc_inode_wakeup (call_frame_t *frame, ioc_inode_t *ioc_inode,
ioc_inode_t *
ioc_inode_update (ioc_table_t *table, inode_t *inode, uint32_t weight)
{
- ioc_inode_t *ioc_inode = NULL;
+ ioc_inode_t *ioc_inode = NULL;
ioc_inode = GF_CALLOC (1, sizeof (ioc_inode_t),
gf_ioc_mt_ioc_inode_t);
if (ioc_inode == NULL) {
goto out;
}
-
- ioc_inode->table = table;
- INIT_LIST_HEAD (&ioc_inode->cache.page_lru);
- ioc_table_lock (table);
+ ioc_inode->table = table;
+ INIT_LIST_HEAD (&ioc_inode->cache.page_lru);
+
+ ioc_table_lock (table);
- table->inode_count++;
- list_add (&ioc_inode->inode_list, &table->inodes);
- list_add_tail (&ioc_inode->inode_lru, &table->inode_lru[weight]);
+ table->inode_count++;
+ list_add (&ioc_inode->inode_list, &table->inodes);
+ list_add_tail (&ioc_inode->inode_lru, &table->inode_lru[weight]);
- gf_log (table->xl->name,
- GF_LOG_TRACE,
- "adding to inode_lru[%d]", weight);
+ gf_log (table->xl->name,
+ GF_LOG_TRACE,
+ "adding to inode_lru[%d]", weight);
- ioc_table_unlock (table);
+ ioc_table_unlock (table);
+
+ pthread_mutex_init (&ioc_inode->inode_lock, NULL);
+ ioc_inode->weight = weight;
- pthread_mutex_init (&ioc_inode->inode_lock, NULL);
- ioc_inode->weight = weight;
-
out:
- return ioc_inode;
+ return ioc_inode;
}
-/*
+/*
* ioc_inode_destroy - destroy an ioc_inode_t object.
*
* @inode: inode to destroy
*
- * to be called only from ioc_forget.
+ * to be called only from ioc_forget.
*/
void
ioc_inode_destroy (ioc_inode_t *ioc_inode)
{
- ioc_table_t *table = NULL;
+ ioc_table_t *table = NULL;
table = ioc_inode->table;
- ioc_table_lock (table);
- table->inode_count--;
- list_del (&ioc_inode->inode_list);
- list_del (&ioc_inode->inode_lru);
- ioc_table_unlock (table);
-
- ioc_inode_flush (ioc_inode);
+ ioc_table_lock (table);
+ table->inode_count--;
+ list_del (&ioc_inode->inode_list);
+ list_del (&ioc_inode->inode_lru);
+ ioc_table_unlock (table);
+
+ ioc_inode_flush (ioc_inode);
rbthash_table_destroy (ioc_inode->cache.page_table);
- pthread_mutex_destroy (&ioc_inode->inode_lock);
- GF_FREE (ioc_inode);
+ pthread_mutex_destroy (&ioc_inode->inode_lock);
+ GF_FREE (ioc_inode);
}
generated by cgit (git 2.34.1) at 2024-04-25 12:01:40 +0000