From mboxrd@z Thu Jan  1 00:00:00 1970
From: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Subject: Re: [patch for-3.12] mm, memcg: protect mem_cgroup_read_events for
 cpu hotplug
Date: Tue, 01 Oct 2013 20:47:01 -0400
Message-ID: <524B6D05.5030609@gmail.com>
References: <alpine.DEB.2.02.1310011629350.27758@chino.kir.corp.google.com>
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To: David Rientjes <rientjes@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>, Andrew Morton <akpm@linux-foundation.org>, Johannes Weiner <hannes@cmpxchg.org>, Michal Hocko <mhocko@suse.cz>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kosaki.motohiro@gmail.com

(10/1/13 7:31 PM), David Rientjes wrote:
> for_each_online_cpu() needs the protection of {get,put}_online_cpus() so
> cpu_online_mask doesn't change during the iteration.
>
> Signed-off-by: David Rientjes <rientjes@google.com>

Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>

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