diff options
| -rw-r--r-- | include/linux/mempool.h | 12 | ||||
| -rw-r--r-- | mm/mempool.c | 17 |
2 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/mempool.h b/include/linux/mempool.h index 9787572e0ae7..d23dbf076b57 100644 --- a/include/linux/mempool.h +++ b/include/linux/mempool.h @@ -39,6 +39,18 @@ void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data); void mempool_free_slab(void *element, void *pool_data); /* + * A mempool_alloc_t and mempool_free_t to kmalloc the amount of memory + * specified by pool_data + */ +void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data); +void mempool_kfree(void *element, void *pool_data); +static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size) +{ + return mempool_create(min_nr, mempool_kmalloc, mempool_kfree, + (void *) size); +} + +/* * A mempool_alloc_t and mempool_free_t for a simple page allocator that * allocates pages of the order specified by pool_data */ diff --git a/mm/mempool.c b/mm/mempool.c index 45c0112ca7b2..a1397c6a4864 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -291,6 +291,23 @@ void mempool_free_slab(void *element, void *pool_data) EXPORT_SYMBOL(mempool_free_slab); /* + * A commonly used alloc and free fn that kmalloc/kfrees the amount of memory + * specfied by pool_data + */ +void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data) +{ + size_t size = (size_t) pool_data; + return kmalloc(size, gfp_mask); +} +EXPORT_SYMBOL(mempool_kmalloc); + +void mempool_kfree(void *element, void *pool_data) +{ + kfree(element); +} +EXPORT_SYMBOL(mempool_kfree); + +/* * A simple mempool-backed page allocator that allocates pages * of the order specified by pool_data. */ |