diff options
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mm/slab.c b/mm/slab.c index a5047161084..6f5aeebd430 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3108,6 +3108,23 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags) EXPORT_SYMBOL(kmem_cache_alloc); /** + * kmem_cache_alloc - Allocate an object. The memory is set to zero. + * @cache: The cache to allocate from. + * @flags: See kmalloc(). + * + * Allocate an object from this cache and set the allocated memory to zero. + * The flags are only relevant if the cache has no available objects. + */ +void *kmem_cache_zalloc(struct kmem_cache *cache, gfp_t flags) +{ + void *ret = __cache_alloc(cache, flags, __builtin_return_address(0)); + if (ret) + memset(ret, 0, obj_size(cache)); + return ret; +} +EXPORT_SYMBOL(kmem_cache_zalloc); + +/** * kmem_ptr_validate - check if an untrusted pointer might * be a slab entry. * @cachep: the cache we're checking against |