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Message-ID: <515E5AAB.2080503@jp.fujitsu.com>
Date: Fri, 05 Apr 2013 14:01:31 +0900
From: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
MIME-Version: 1.0
Subject: Re: [RFC][PATCH 1/7] memcg: use css_get in sock_update_memcg()
References: <515BF233.6070308@huawei.com> <515BF249.50607@huawei.com>
In-Reply-To: <515BF249.50607@huawei.com>
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Sender: owner-linux-mm@kvack.org
List-ID: <linux-mm.kvack.org>
To: Li Zefan <lizefan@huawei.com>
Cc: linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>, Cgroups <cgroups@vger.kernel.org>, Tejun Heo <tj@kernel.org>, Glauber Costa <glommer@parallels.com>, Michal Hocko <mhocko@suse.cz>, Johannes Weiner <hannes@cmpxchg.org>

(2013/04/03 18:11), Li Zefan wrote:
> Use css_get/css_put instead of mem_cgroup_get/put.
> 
> Note, if at the same time someone is moving @current to a different
> cgroup and removing the old cgroup, css_tryget() may return false,
> and sock->sk_cgrp won't be initialized.
> 
> Signed-off-by: Li Zefan <lizefan@huawei.com>

Thank you.
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>


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