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| author | Nikanth Karthikesan <knikanth@suse.de> | 2009-05-28 14:34:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-29 08:40:03 -0700 |
| commit | 46f7e602fb32e02145ef14f8c0ca6d399f0a96b9 (patch) | |
| tree | 3db67ceec30ffc1ababad1d79c11ba8a61fa037c /mm/memcontrol.c | |
| parent | f83a275dbc5ca1721143698e844243fcadfabf6a (diff) | |
| download | lwn-46f7e602fb32e02145ef14f8c0ca6d399f0a96b9.tar.gz lwn-46f7e602fb32e02145ef14f8c0ca6d399f0a96b9.zip | |
memcg: fix build warning and avoid checking for mem != null again and again
Fix build warning, "mem_cgroup_is_obsolete defined but not used" when
CONFIG_DEBUG_VM is not set. Also avoid checking for !mem again and again.
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 4a747a27a22f..78eb8552818b 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -314,14 +314,6 @@ static struct mem_cgroup *try_get_mem_cgroup_from_mm(struct mm_struct *mm) return mem; } -static bool mem_cgroup_is_obsolete(struct mem_cgroup *mem) -{ - if (!mem) - return true; - return css_is_removed(&mem->css); -} - - /* * Call callback function against all cgroup under hierarchy tree. */ @@ -932,7 +924,7 @@ static int __mem_cgroup_try_charge(struct mm_struct *mm, if (unlikely(!mem)) return 0; - VM_BUG_ON(!mem || mem_cgroup_is_obsolete(mem)); + VM_BUG_ON(css_is_removed(&mem->css)); while (1) { int ret; |