From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michal Hocko <mhocko@suse.cz>
Subject: [PATCH v3 2/3] vmpressure: do not check for pending work to prevent from new work
Date: Mon, 15 Jul 2013 12:30:32 +0200
Message-ID: <1373884233-32441-2-git-send-email-mhocko@suse.cz>
References: <20130711154408.GA9229@mtj.dyndns.org>
 <1373884233-32441-1-git-send-email-mhocko@suse.cz>
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Cc: Tejun Heo <tj@kernel.org>, Li Zefan <lizefan@huawei.com>, Anton Vorontsov <anton.vorontsov@linaro.org>, Johannes Weiner <hannes@cmpxchg.org>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, linux-mm@kvack.org

because it is racy and it doesn't give us much anyway as schedule_work
handles this case already.

Brought-up-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
---
 mm/vmpressure.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmpressure.c b/mm/vmpressure.c
index f4ee6a1..192f973 100644
--- a/mm/vmpressure.c
+++ b/mm/vmpressure.c
@@ -246,7 +246,7 @@ void vmpressure(gfp_t gfp, struct mem_cgroup *memcg,
 	scanned = vmpr->scanned;
 	spin_unlock(&vmpr->sr_lock);
 
-	if (scanned < vmpressure_win || work_pending(&vmpr->work))
+	if (scanned < vmpressure_win)
 		return;
 	schedule_work(&vmpr->work);
 }
-- 
1.8.3.2

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