X-Git-Url: http://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=blobdiff_plain;f=mm%2Fmempool.c;h=e3a802a0cea096811bf911ba271f2b302d9c110d;hp=11f0d0a5e0f853687744a0430ae6b8259daab87c;hb=0565d317768cc66b13e37184f29d9f270c2886dc;hpb=5b990546e33477c34ee6fbc20fad6584386b46c3 diff --git a/mm/mempool.c b/mm/mempool.c index 11f0d0a..e3a802a 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -27,7 +27,15 @@ static void *remove_element(mempool_t *pool) return pool->elements[--pool->curr_nr]; } -static void free_pool(mempool_t *pool) +/** + * mempool_destroy - deallocate a memory pool + * @pool: pointer to the memory pool which was allocated via + * mempool_create(). + * + * Free all reserved elements in @pool and @pool itself. This function + * only sleeps if the free_fn() function sleeps. + */ +void mempool_destroy(mempool_t *pool) { while (pool->curr_nr) { void *element = remove_element(pool); @@ -36,6 +44,7 @@ static void free_pool(mempool_t *pool) kfree(pool->elements); kfree(pool); } +EXPORT_SYMBOL(mempool_destroy); /** * mempool_create - create a memory pool @@ -86,7 +95,7 @@ mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn, element = pool->alloc(GFP_KERNEL, pool->pool_data); if (unlikely(!element)) { - free_pool(pool); + mempool_destroy(pool); return NULL; } add_element(pool, element); @@ -172,23 +181,6 @@ out: EXPORT_SYMBOL(mempool_resize); /** - * mempool_destroy - deallocate a memory pool - * @pool: pointer to the memory pool which was allocated via - * mempool_create(). - * - * this function only sleeps if the free_fn() function sleeps. The caller - * has to guarantee that all elements have been returned to the pool (ie: - * freed) prior to calling mempool_destroy(). - */ -void mempool_destroy(mempool_t *pool) -{ - /* Check for outstanding elements */ - BUG_ON(pool->curr_nr != pool->min_nr); - free_pool(pool); -} -EXPORT_SYMBOL(mempool_destroy); - -/** * mempool_alloc - allocate an element from a specific memory pool * @pool: pointer to the memory pool which was allocated via * mempool_create().