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authorGlauber Costa <glommer@parallels.com>2012-12-18 14:22:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-18 15:02:14 -0800
commitb9ce5ef49f00daf2254c6953c8d31f79aabccd34 (patch)
tree1da6afdbb3dc2e2d31f588dbfbf502e984af48a6 /include/linux/memcontrol.h
parent0e9d92f2d02d8c8320f0502307c688d07bdac2b3 (diff)
downloadop-kernel-dev-b9ce5ef49f00daf2254c6953c8d31f79aabccd34.zip
op-kernel-dev-b9ce5ef49f00daf2254c6953c8d31f79aabccd34.tar.gz
sl[au]b: always get the cache from its page in kmem_cache_free()
struct page already has this information. If we start chaining caches, this information will always be more trustworthy than whatever is passed into the function. Signed-off-by: Glauber Costa <glommer@parallels.com> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Frederic Weisbecker <fweisbec@redhat.com> Cc: Greg Thelen <gthelen@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: JoonSoo Kim <js1304@gmail.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michal Hocko <mhocko@suse.cz> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Rik van Riel <riel@redhat.com> Cc: Suleiman Souhlal <suleiman@google.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/memcontrol.h')
-rw-r--r--include/linux/memcontrol.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index bd9b5d7..2298122e 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -554,6 +554,11 @@ memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp)
return __memcg_kmem_get_cache(cachep, gfp);
}
#else
+static inline bool memcg_kmem_enabled(void)
+{
+ return false;
+}
+
static inline bool
memcg_kmem_newpage_charge(gfp_t gfp, struct mem_cgroup **memcg, int order)
{
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