From: Michal Hocko <mhocko@suse.cz>
To: cgroups@vger.kernel.org
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
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 [thread overview]
Message-ID: <1373884233-32441-2-git-send-email-mhocko@suse.cz> (raw)
In-Reply-To: <1373884233-32441-1-git-send-email-mhocko@suse.cz>
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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next prev parent reply other threads:[~2013-07-15 10:30 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20130710184254.GA16979@mtj.dyndns.org>
[not found] ` <20130711083110.GC21667@dhcp22.suse.cz>
[not found] ` <51DE701C.6010800@huawei.com>
[not found] ` <20130711092542.GD21667@dhcp22.suse.cz>
[not found] ` <51DE7AAF.6070004@huawei.com>
2013-07-11 9:33 ` [PATCH v2] vmpressure: make sure memcg stays alive until all users are signaled Michal Hocko
2013-07-11 15:44 ` Tejun Heo
2013-07-11 16:22 ` Michal Hocko
2013-07-11 16:32 ` Tejun Heo
2013-07-12 8:40 ` Michal Hocko
2013-07-12 9:20 ` Li Zefan
2013-07-12 9:29 ` Michal Hocko
2013-07-12 9:54 ` Li Zefan
2013-07-12 10:37 ` Michal Hocko
2013-07-15 3:07 ` Li Zefan
2013-07-15 9:20 ` Michal Hocko
2013-07-15 9:53 ` Li Zefan
2013-07-12 9:24 ` [PATCH 1/3] vmpressure: document why css_get/put is not necessary for work queue based signaling Michal Hocko
2013-07-12 9:24 ` [PATCH 2/3] vmpressure: change vmpressure::sr_lock to spinlock Michal Hocko
2013-07-12 9:24 ` [PATCH 3/3] vmpressure: do not check for pending work to prevent from new work Michal Hocko
2013-07-12 18:48 ` [PATCH 1/3] vmpressure: document why css_get/put is not necessary for work queue based signaling Tejun Heo
2013-07-15 10:27 ` Michal Hocko
2013-07-12 18:34 ` [PATCH v2] vmpressure: make sure memcg stays alive until all users are signaled Tejun Heo
2013-07-12 18:40 ` Tejun Heo
2013-07-12 6:03 ` Li Zefan
2013-07-15 10:30 ` [PATCH v3 1/3] vmpressure: change vmpressure::sr_lock to spinlock Michal Hocko
2013-07-15 10:30 ` Michal Hocko [this message]
2013-07-15 10:30 ` [PATCH v3 3/3] vmpressure: Make sure there are no events queued after memcg is offlined Michal Hocko
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