diff options
| -rw-r--r-- | libglusterfs/src/rbthash.c | 55 | ||||
| -rw-r--r-- | libglusterfs/src/rbthash.h | 5 | ||||
| -rw-r--r-- | xlators/performance/io-cache/src/io-cache.c | 58 | ||||
| -rw-r--r-- | xlators/performance/io-cache/src/io-cache.h | 5 | ||||
| -rw-r--r-- | xlators/performance/io-cache/src/ioc-inode.c | 10 | ||||
| -rw-r--r-- | xlators/performance/stat-prefetch/src/stat-prefetch.c | 13 |
6 files changed, 115 insertions, 31 deletions
diff --git a/libglusterfs/src/rbthash.c b/libglusterfs/src/rbthash.c index c2cbf99b4a1..63d08385883 100644 --- a/libglusterfs/src/rbthash.c +++ b/libglusterfs/src/rbthash.c @@ -79,9 +79,21 @@ err: } +/* + * rbthash_table_init - Initialize a RBT based hash table + * @buckets - Number of buckets in the hash table + * @hfunc - hashing function + * @dfunc - destroyer for data in the RBT + * @expected_entries - Number of entries expected in RBT. Mutually exclusive + * with entrypool. + * @entrypool - Memory pool in lieu of expected_entries. + */ + rbthash_table_t * -rbthash_table_init (int buckets, rbt_hasher_t hfunc, rbt_data_destroyer_t dfunc, - unsigned long expected_entries) +rbthash_table_init (int buckets, rbt_hasher_t hfunc, + rbt_data_destroyer_t dfunc, + unsigned long expected_entries, + struct mem_pool *entrypool) { rbthash_table_t *newtab = NULL; int ret = -1; @@ -91,6 +103,19 @@ rbthash_table_init (int buckets, rbt_hasher_t hfunc, rbt_data_destroyer_t dfunc, return NULL; } + if (!entrypool && !expected_entries) { + gf_log (GF_RBTHASH, GF_LOG_ERROR, + "Both mem-pool and expected entries not provided"); + return NULL; + } + + if (entrypool && expected_entries) { + gf_log (GF_RBTHASH, GF_LOG_ERROR, + "Both mem-pool and expected entries are provided"); + return NULL; + } + + newtab = CALLOC (1, sizeof (*newtab)); if (!newtab) return NULL; @@ -101,10 +126,17 @@ rbthash_table_init (int buckets, rbt_hasher_t hfunc, rbt_data_destroyer_t dfunc, goto free_newtab; } - newtab->entrypool = mem_pool_new (rbthash_entry_t, expected_entries); - if (!newtab->entrypool) { - gf_log (GF_RBTHASH, GF_LOG_ERROR,"Failed to allocate mem-pool"); - goto free_buckets; + if (expected_entries) { + newtab->entrypool = + mem_pool_new (rbthash_entry_t, expected_entries); + if (!newtab->entrypool) { + gf_log (GF_RBTHASH, GF_LOG_ERROR, + "Failed to allocate mem-pool"); + goto free_buckets; + } + newtab->pool_alloced = _gf_true; + } else { + newtab->entrypool = entrypool; } LOCK_INIT (&newtab->tablelock); @@ -113,13 +145,16 @@ rbthash_table_init (int buckets, rbt_hasher_t hfunc, rbt_data_destroyer_t dfunc, if (ret == -1) { gf_log (GF_RBTHASH, GF_LOG_ERROR, "Failed to init buckets"); - mem_pool_destroy (newtab->entrypool); - } else + if (newtab->pool_alloced) + mem_pool_destroy (newtab->entrypool); + } else { gf_log (GF_RBTHASH, GF_LOG_TRACE, "Inited hash table: buckets:" " %d", buckets); + } newtab->hashfunc = hfunc; newtab->dfunc = dfunc; + free_buckets: if (ret == -1) FREE (newtab->buckets); @@ -133,7 +168,6 @@ free_newtab: return newtab; } - rbthash_entry_t * rbthash_init_entry (rbthash_table_t *tbl, void *data, void *key, int keylen) { @@ -381,7 +415,8 @@ rbthash_table_destroy (rbthash_table_t *tbl) return; rbthash_table_destroy_buckets (tbl); - mem_pool_destroy (tbl->entrypool); + if (tbl->pool_alloced) + mem_pool_destroy (tbl->entrypool); FREE (tbl->buckets); FREE (tbl); diff --git a/libglusterfs/src/rbthash.h b/libglusterfs/src/rbthash.h index f2200f8957c..535dccad926 100644 --- a/libglusterfs/src/rbthash.h +++ b/libglusterfs/src/rbthash.h @@ -23,6 +23,7 @@ #include "locking.h" #include "mem-pool.h" #include "logging.h" +#include "common-utils.h" #include <pthread.h> @@ -52,11 +53,13 @@ typedef struct rbthash_table { struct rbthash_bucket *buckets; rbt_hasher_t hashfunc; rbt_data_destroyer_t dfunc; + gf_boolean_t pool_alloced; } rbthash_table_t; extern rbthash_table_t * rbthash_table_init (int buckets, rbt_hasher_t hfunc, - rbt_data_destroyer_t dfunc, unsigned long expected_entries); + rbt_data_destroyer_t dfunc, unsigned long expected_entries, + struct mem_pool *entrypool); extern int rbthash_insert (rbthash_table_t *tbl, void *data, void *key, int keylen); diff --git a/xlators/performance/io-cache/src/io-cache.c b/xlators/performance/io-cache/src/io-cache.c index 83948ff0e3f..3fb4c850efd 100644 --- a/xlators/performance/io-cache/src/io-cache.c +++ b/xlators/performance/io-cache/src/io-cache.c @@ -891,6 +891,13 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, 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; @@ -903,6 +910,47 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, return 0; } + + table = this->private; + + if (!table) { + gf_log (this->name, GF_LOG_ERROR, "table is null"); + op_errno = EINVAL; + goto out; + } + + + ioc_table_lock (table); + if (!table->mem_pool) { + + num_pages = (table->cache_size / table->page_size) + + ((table->cache_size % table->page_size) ? 1 : 0); + + table->mem_pool + = mem_pool_new (rbthash_entry_t, num_pages); + + if (!table->mem_pool) { + gf_log (this->name, GF_LOG_ERROR, + "Unable to allocate mem_pool"); + op_errno = ENOMEM; + ioc_table_unlock (table); + goto out; + } + } + ioc_table_unlock (table); + + 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); + + if (ioc_inode->cache.page_table == NULL) { + op_errno = ENOMEM; + goto out; + } + } + if (!fd_ctx_get (fd, this, NULL)) { /* disable caching for this fd, go ahead with normal readv */ STACK_WIND (frame, ioc_readv_disabled_cbk, @@ -915,9 +963,8 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, local = (ioc_local_t *) CALLOC (1, sizeof (ioc_local_t)); if (local == NULL) { gf_log (this->name, GF_LOG_ERROR, "out of memory"); - STACK_UNWIND_STRICT (readv, frame, -1, ENOMEM, NULL, 0, NULL, - NULL); - return 0; + op_errno = ENOMEM; + goto out; } INIT_LIST_HEAD (&local->fill_list); @@ -943,8 +990,11 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, ioc_table_unlock (ioc_inode->table); ioc_dispatch_requests (frame, ioc_inode, fd, offset, size); - return 0; + +out: + STACK_UNWIND_STRICT (readv, frame, -1, op_errno, NULL, 0, NULL, NULL); + return 0; } /* diff --git a/xlators/performance/io-cache/src/io-cache.h b/xlators/performance/io-cache/src/io-cache.h index de6cb3527ee..44f621f8078 100644 --- a/xlators/performance/io-cache/src/io-cache.h +++ b/xlators/performance/io-cache/src/io-cache.h @@ -41,7 +41,7 @@ #define IOC_PAGE_SIZE (1024 * 128) /* 128KB */ #define IOC_CACHE_SIZE (32 * 1024 * 1024) -#define IOC_PAGE_TABLE_BUCKET_COUNT 4096 +#define IOC_PAGE_TABLE_BUCKET_COUNT 1 struct ioc_table; struct ioc_local; @@ -169,6 +169,7 @@ struct ioc_table { uint32_t inode_count; int32_t cache_timeout; int32_t max_pri; + struct mem_pool *mem_pool; }; typedef struct ioc_table ioc_table_t; @@ -332,4 +333,6 @@ ioc_prune (ioc_table_t *table); int32_t ioc_need_prune (ioc_table_t *table); +inline uint32_t +ioc_hashfn (void *data, int len); #endif /* __IO_CACHE_H */ diff --git a/xlators/performance/io-cache/src/ioc-inode.c b/xlators/performance/io-cache/src/ioc-inode.c index 11da863123f..9ac5469f5e3 100644 --- a/xlators/performance/io-cache/src/ioc-inode.c +++ b/xlators/performance/io-cache/src/ioc-inode.c @@ -177,16 +177,6 @@ ioc_inode_update (ioc_table_t *table, inode_t *inode, uint32_t weight) no_of_pages = (table->cache_size / table->page_size) + ((table->cache_size % table->page_size) ? 1 : 0); - /* initialize the list for pages */ - ioc_inode->cache.page_table = rbthash_table_init (IOC_PAGE_TABLE_BUCKET_COUNT, - ioc_hashfn, NULL, - no_of_pages); - if (ioc_inode->cache.page_table == NULL) { - FREE (ioc_inode); - ioc_inode = NULL; - goto out; - } - INIT_LIST_HEAD (&ioc_inode->cache.page_lru); ioc_table_lock (table); diff --git a/xlators/performance/stat-prefetch/src/stat-prefetch.c b/xlators/performance/stat-prefetch/src/stat-prefetch.c index 29d915c1a3d..566dd18094f 100644 --- a/xlators/performance/stat-prefetch/src/stat-prefetch.c +++ b/xlators/performance/stat-prefetch/src/stat-prefetch.c @@ -171,10 +171,12 @@ sp_cache_init (void) cache = CALLOC (1, sizeof (*cache)); if (cache) { - cache->table = rbthash_table_init (GF_SP_CACHE_BUCKETS, - sp_hashfn, - free, - GF_SP_CACHE_ENTRIES_EXPECTED); + cache->table = + rbthash_table_init (GF_SP_CACHE_BUCKETS, + sp_hashfn, + free, + GF_SP_CACHE_ENTRIES_EXPECTED, + NULL); if (cache->table == NULL) { FREE (cache); cache = NULL; @@ -216,7 +218,8 @@ sp_cache_remove_entry (sp_cache_t *cache, char *name, char remove_all) cache->table = rbthash_table_init (GF_SP_CACHE_BUCKETS, sp_hashfn, free, - GF_SP_CACHE_ENTRIES_EXPECTED); + GF_SP_CACHE_ENTRIES_EXPECTED, + NULL); if (cache->table == NULL) { cache->table = table; } else { |