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

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Date:	Mon, 16 Jan 2012 14:04:53 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	linux-mm@...ck.org
CC:	Michal Hocko <mhocko@...e.cz>,
	"bsingharora@...il.com" <bsingharora@...il.com>,
	Hiroyuki KAMEZAWA <kamezawa.hiroyu@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>, linux-mm@...ck.org,
	Cgroups <cgroups@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] memcg: fix compile warning on non-numa systems

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'

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 mm/memcontrol.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 602207b..c8aeab8 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -776,14 +776,16 @@ static void memcg_check_events(struct mem_cgroup *memcg, struct page *page)
 	/* 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;
-
-		do_softlimit = mem_cgroup_event_ratelimit(memcg,
-						MEM_CGROUP_TARGET_SOFTLIMIT);
+		bool do_softlimit;
 #if MAX_NUMNODES > 1
+		bool do_numainfo;
+
 		do_numainfo = mem_cgroup_event_ratelimit(memcg,
 						MEM_CGROUP_TARGET_NUMAINFO);
 #endif
+
+		do_softlimit = mem_cgroup_event_ratelimit(memcg,
+						MEM_CGROUP_TARGET_SOFTLIMIT);
 		preempt_enable();
 
 		mem_cgroup_threshold(memcg);
-- 
1.7.3.1
--
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