diff options
author | Christoph Lameter <cl@linux.com> | 2012-07-06 20:25:12 (GMT) |
---|---|---|
committer | Pekka Enberg <penberg@kernel.org> | 2012-07-09 09:13:41 (GMT) |
commit | 18004c5d4084d965aa1396392706b8688306427a (patch) | |
tree | ae480cb4514cbddf38ee43ec4513f59cfa42c3d7 /mm/slab.h | |
parent | 97d06609158e61f6bdf538c4a6788e2de492236f (diff) | |
download | linux-18004c5d4084d965aa1396392706b8688306427a.tar.xz |
mm, sl[aou]b: Use a common mutex definition
Use the mutex definition from SLAB and make it the common way to take a sleeping lock.
This has the effect of using a mutex instead of a rw semaphore for SLUB.
SLOB gains the use of a mutex for kmem_cache_create serialization.
Not needed now but SLOB may acquire some more features later (like slabinfo
/ sysfs support) through the expansion of the common code that will
need this.
Reviewed-by: Glauber Costa <glommer@parallels.com>
Reviewed-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slab.h')
-rw-r--r-- | mm/slab.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -23,6 +23,10 @@ enum slab_state { extern enum slab_state slab_state; +/* The slab cache mutex protects the management structures during changes */ +extern struct mutex slab_mutex; +extern struct list_head slab_caches; + struct kmem_cache *__kmem_cache_create(const char *name, size_t size, size_t align, unsigned long flags, void (*ctor)(void *)); |