diff options
| author | Matthew Dobson <colpatch@us.ibm.com> | 2006-03-26 11:37:48 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 18:56:59 +0200 |
| commit | f183323d3822dee4d7b3147a59b6e8987fe201e0 (patch) | |
| tree | f1cec982da7ae954af52584630c273976fd43127 | |
| parent | [PATCH] mempool: use common mempool kmalloc allocator (diff) | |
| download | linux-f183323d3822dee4d7b3147a59b6e8987fe201e0.tar.xz linux-f183323d3822dee4d7b3147a59b6e8987fe201e0.zip | |
[PATCH] mempool: add kzalloc allocator
Add another allocator to the common mempool code: a kzalloc/kfree allocator
This will be used by the next patch in the series to replace a mempool-backed
kzalloc allocator. It is also very likely that there will be more users in
the future.
Signed-off-by: Matthew Dobson <colpatch@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/linux/mempool.h | 10 | ||||
| -rw-r--r-- | mm/mempool.c | 9 |
2 files changed, 16 insertions, 3 deletions
diff --git a/include/linux/mempool.h b/include/linux/mempool.h index d23dbf076b57..41570ce353eb 100644 --- a/include/linux/mempool.h +++ b/include/linux/mempool.h @@ -39,16 +39,22 @@ 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 + * 2 mempool_alloc_t's and a mempool_free_t to kmalloc/kzalloc and kfree + * the amount of memory specified by pool_data */ void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data); +void *mempool_kzalloc(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); } +static inline mempool_t *mempool_create_kzalloc_pool(int min_nr, size_t size) +{ + return mempool_create(min_nr, mempool_kzalloc, mempool_kfree, + (void *) size); +} /* * A mempool_alloc_t and mempool_free_t for a simple page allocator that diff --git a/mm/mempool.c b/mm/mempool.c index a1397c6a4864..7bf064e6a345 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -296,11 +296,18 @@ EXPORT_SYMBOL(mempool_free_slab); */ void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data) { - size_t size = (size_t) pool_data; + size_t size = (size_t)(long)pool_data; return kmalloc(size, gfp_mask); } EXPORT_SYMBOL(mempool_kmalloc); +void *mempool_kzalloc(gfp_t gfp_mask, void *pool_data) +{ + size_t size = (size_t) pool_data; + return kzalloc(size, gfp_mask); +} +EXPORT_SYMBOL(mempool_kzalloc); + void mempool_kfree(void *element, void *pool_data) { kfree(element); |