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Date: Mon, 14 Jan 2013 10:55:46 -0800
From: Tejun Heo <tj@kernel.org>
To: Li Zefan <lizefan@huawei.com>
Cc: Colin Cross <ccross@google.com>, Mike Galbraith <efault@gmx.de>,
        LKML <linux-kernel@vger.kernel.org>, Cgroups <cgroups@vger.kernel.org>
Subject: Re: [PATCH 2/2] cgroup: remove synchronize_rcu() from
 rebind_subsystems()
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References: <50F3CE8E.5000402@huawei.com>
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On Mon, Jan 14, 2013 at 10:55:12AM -0800, Tejun Heo wrote:
> On Mon, Jan 14, 2013 at 05:24:18PM +0800, Li Zefan wrote:
> > Nothing's protected by RCU in rebind_subsystems(), and I can't think
> > of a reason why it is needed.
> > 
> > Signed-off-by: Li Zefan <lizefan@huawei.com>
> 
> Applied to cgroup/for-3.9.  We probably should synchornize_rcu() from
                                                ^
						remove

> cgroup_diput() too.  Probably by punting css_free() and cgrp freeing
> to a work item from call_rcu() callback.

-- 
tejun

From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH 2/2] cgroup: remove synchronize_rcu() from
 rebind_subsystems()
Date: Mon, 14 Jan 2013 10:55:46 -0800
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To: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: Colin Cross <ccross-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, Mike Galbraith <efault-Mmb7MZpHnFY@public.gmane.org>, LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Cgroups <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>

On Mon, Jan 14, 2013 at 10:55:12AM -0800, Tejun Heo wrote:
> On Mon, Jan 14, 2013 at 05:24:18PM +0800, Li Zefan wrote:
> > Nothing's protected by RCU in rebind_subsystems(), and I can't think
> > of a reason why it is needed.
> > 
> > Signed-off-by: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
> 
> Applied to cgroup/for-3.9.  We probably should synchornize_rcu() from
                                                ^
						remove

> cgroup_diput() too.  Probably by punting css_free() and cgrp freeing
> to a work item from call_rcu() callback.

-- 
tejun