linux-kernel - [PATCH 2/5] memcg: kill unnecessary initialization in mem_cgroup_shrink_node

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Message-Id: <20100729142652.4AAB.A69D9226@jp.fujitsu.com>
Date:	Thu, 29 Jul 2010 14:27:34 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Nishimura Daisuke <d-nishimura@....biglobe.ne.jp>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>
Cc:	kosaki.motohiro@...fujitsu.com
Subject: [PATCH 2/5] memcg: kill unnecessary initialization in mem_cgroup_shrink_node_zone()

sc.nr_reclaimed and sc.nr_scanned have already been initialized
few lines above "struct scan_control sc = {}" statement.

So, This patch remove this unnecessary code.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
---
 mm/vmscan.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 224184f..102ee3a 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1948,8 +1948,6 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem,
 	sc.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) |
 			(GFP_HIGHUSER_MOVABLE & ~GFP_RECLAIM_MASK);
 	sc.nodemask = &nm;
-	sc.nr_reclaimed = 0;
-	sc.nr_scanned = 0;
 
 	trace_mm_vmscan_memcg_softlimit_reclaim_begin(0,
 						      sc.may_writepage,
-- 
1.6.5.2



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