From 18004c5d4084d965aa1396392706b8688306427a Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 6 Jul 2012 15:25:12 -0500 Subject: 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 Reviewed-by: Joonsoo Kim Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- mm/slab_common.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'mm/slab_common.c') 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. -- cgit v1.2.3-55-g7522