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CLEANUP: pools: make the local cache allocator fall back to the shared cache

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Now when pool_get_from_local_cache() fails, it automatically falls back
to pool_get_from_shared_cache(), which used to always be done in
pool_get_from_cache(). Thus now the API is simpler as we always allocate
and free from/to the local caches.
This commit is contained in:
Willy Tarreau 2021-04-19 08:56:22 +02:00
parent fa19d20ac4
commit d56db11447
1 changed files with 4 additions and 4 deletions
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8
include/haproxy/pool.h
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@ -74,6 +74,7 @@ extern THREAD_LOCAL size_t pool_cache_count; /* #cache objects */
void pool_evict_from_local_cache(struct pool_head *pool);
void pool_evict_from_local_caches();
static inline void *pool_get_from_shared_cache(struct pool_head *pool);
/* returns true if the pool is considered to have too many free objects */
static inline int pool_is_crowded(const struct pool_head *pool)
@ -83,7 +84,8 @@ static inline int pool_is_crowded(const struct pool_head *pool)
}
/* Tries to retrieve an object from the local pool cache corresponding to pool
* <pool>. Returns NULL if none is available.
* <pool>. If none is available, tries to allocate from the shared cache, and
* returns NULL if nothing is available.
*/
static inline void *pool_get_from_local_cache(struct pool_head *pool)
{
@ -92,7 +94,7 @@ static inline void *pool_get_from_local_cache(struct pool_head *pool)
ph = &pool->cache[tid];
if (LIST_ISEMPTY(&ph->list))
return NULL; // empty
return pool_get_from_shared_cache(pool);
item = LIST_NEXT(&ph->list, typeof(item), by_pool);
ph->count--;
@ -278,8 +280,6 @@ static inline void *pool_get_from_cache(struct pool_head *pool)
void *ptr;
ptr = pool_get_from_local_cache(pool);
if (!ptr)
ptr = pool_get_from_shared_cache(pool);
return ptr;
}