diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slab_common.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 70b0cc85db67..81732d05e74a 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -406,8 +406,9 @@ out_free_cache: goto out; } -/* - * kmem_cache_create_usercopy - Create a cache. +/** + * kmem_cache_create_usercopy - Create a cache with a region suitable + * for copying to userspace * @name: A string which is used in /proc/slabinfo to identify this cache. * @size: The size of objects to be created in this cache. * @align: The required alignment for the objects. @@ -416,7 +417,6 @@ out_free_cache: * @usersize: Usercopy region size * @ctor: A constructor for the objects. * - * Returns a ptr to the cache on success, NULL on failure. * Cannot be called within a interrupt, but can be interrupted. * The @ctor is run when new pages are allocated by the cache. * @@ -425,12 +425,14 @@ out_free_cache: * %SLAB_POISON - Poison the slab with a known test pattern (a5a5a5a5) * to catch references to uninitialised memory. * - * %SLAB_RED_ZONE - Insert `Red' zones around the allocated memory to check + * %SLAB_RED_ZONE - Insert `Red` zones around the allocated memory to check * for buffer overruns. * * %SLAB_HWCACHE_ALIGN - Align the objects in this cache to a hardware * cacheline. This can be beneficial if you're counting cycles as closely * as davem. + * + * Return: a pointer to the cache on success, NULL on failure. */ struct kmem_cache * kmem_cache_create_usercopy(const char *name, @@ -514,6 +516,31 @@ out_unlock: } EXPORT_SYMBOL(kmem_cache_create_usercopy); +/** + * kmem_cache_create - Create a cache. + * @name: A string which is used in /proc/slabinfo to identify this cache. + * @size: The size of objects to be created in this cache. + * @align: The required alignment for the objects. + * @flags: SLAB flags + * @ctor: A constructor for the objects. + * + * Cannot be called within a interrupt, but can be interrupted. + * The @ctor is run when new pages are allocated by the cache. + * + * The flags are + * + * %SLAB_POISON - Poison the slab with a known test pattern (a5a5a5a5) + * to catch references to uninitialised memory. + * + * %SLAB_RED_ZONE - Insert `Red` zones around the allocated memory to check + * for buffer overruns. + * + * %SLAB_HWCACHE_ALIGN - Align the objects in this cache to a hardware + * cacheline. This can be beneficial if you're counting cycles as closely + * as davem. + * + * Return: a pointer to the cache on success, NULL on failure. + */ struct kmem_cache * kmem_cache_create(const char *name, unsigned int size, unsigned int align, slab_flags_t flags, void (*ctor)(void *)) |