Thread (5 messages) 5 messages, 4 authors, 2012-01-26

Re: [PATCH] memcg: fix compile warning on non-numa systems

From: Michal Hocko <hidden>
Date: 2012-01-26 09:01:21
Also in: linux-mm, lkml

On Thu 26-01-12 00:55:21, Andrew Morton wrote:
On Mon, 16 Jan 2012 09:47:15 +0100 Michal Hocko [off-list ref] wrote:
quoted
On Mon 16-01-12 14:04:53, Li Zefan wrote:
quoted
Fix this warning:

  CC      mm/memcontrol.o
mm/memcontrol.c: In function 'memcg_check_events':
mm/memcontrol.c:779:22: warning: unused variable 'do_numainfo'
This has been already posted by Kirill and I didn't like the solution
(https://lkml.org/lkml/2011/12/27/86). He then reposted with a different
version (https://lkml.org/lkml/2012/1/6/281).
The later one looks better but I still think this is not worth
complicate the code just to get rid of this warning.
This?
Haven't seen this one but it looks sane.
Acked-by: Michal Hocko <redacted>
quoted hunk ↗ jump to hunk
--- a/mm/memcontrol.c~a
+++ a/mm/memcontrol.c
@@ -776,7 +776,8 @@ static void memcg_check_events(struct me
 	/* threshold event is triggered in finer grain than soft limit */
 	if (unlikely(mem_cgroup_event_ratelimit(memcg,
 						MEM_CGROUP_TARGET_THRESH))) {
-		bool do_softlimit, do_numainfo;
+		bool do_softlimit;
+		bool do_numainfo __maybe_unused;
 
 		do_softlimit = mem_cgroup_event_ratelimit(memcg,
 						MEM_CGROUP_TARGET_SOFTLIMIT);
_
-- 
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9    
Czech Republic
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