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| author | Christoph Lameter <cl@linux.com> | 2012-07-06 22:25:12 +0200 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2012-07-09 11:13:41 +0200 |
| commit | 18004c5d4084d965aa1396392706b8688306427a (patch) | |
| tree | ae480cb4514cbddf38ee43ec4513f59cfa42c3d7 /mm/slab_common.c | |
| parent | mm, sl[aou]b: Common definition for boot state of the slab allocators (diff) | |
| download | linux-18004c5d4084d965aa1396392706b8688306427a.tar.xz linux-18004c5d4084d965aa1396392706b8688306427a.zip | |
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_common.c')
| -rw-r--r-- | mm/slab_common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index ca1aaf69a1f5..50e1ff10bff9 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -19,6 +19,8 @@ #include "slab.h" enum slab_state slab_state; +LIST_HEAD(slab_caches); +DEFINE_MUTEX(slab_mutex); /* * kmem_cache_create - Create a cache. |