From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH] cgroup: remove hierarchy_mutex
Date: Thu, 7 Jun 2012 11:33:02 +0900
Message-ID: <20120607023302.GH21357@google.com>
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To: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Cgroups <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>

On Mon, Jun 04, 2012 at 02:37:06PM +0800, Li Zefan wrote:
> It was introduced for memcg to iterate cgroup hierarchy without
> holding cgroup_mutex, but soon after that it was replaced with
> a lockless way in memcg.
> 
> No one used hierarchy_mutex since that, so remove it.
> 
> Signed-off-by: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>

Applied to cgroup/for-3.6.  Thanks.

-- 
tejun