linux-kernel - [PATCH] mm/memcg: add BUG() to mem_cgroup

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Date:	Fri,  6 Jul 2012 11:44:57 +0800
From:	Wanpeng Li <liwp.linux@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.cz>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	cgroups@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Wanpeng Li <liwp.linux@...il.com>
Subject: [PATCH] mm/memcg: add BUG() to mem_cgroup_reset

From: Wanpeng Li <liwp@...ux.vnet.ibm.com>

Branch in mem_cgroup_reset only can be RES_MAX_USAGE, RES_FAILCNT.

Signed-off-by: Wanpeng Li <liwp.linux@...il.com>
---
 mm/memcontrol.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a501660..5e4d1ab 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3976,6 +3976,8 @@ static int mem_cgroup_reset(struct cgroup *cont, unsigned int event)
 		else
 			res_counter_reset_failcnt(&memcg->memsw);
 		break;
+	default:
+		BUG();
 	}
 
 	return 0;
-- 
1.7.5.4

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