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()
Date: Mon, 14 Jan 2013 10:55:12 -0800 [thread overview]
Message-ID: <20130114185512.GG27942@mtj.dyndns.org> (raw)
In-Reply-To: <50F3CEC2.1020909@huawei.com>
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
cgroup_diput() too. Probably by punting css_free() and cgrp freeing
to a work item from call_rcu() callback.
Thanks.
--
tejun
next prev parent reply other threads:[~2013-01-14 18:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-14 9:23 [PATCH 1/2] cgroup: remove synchronize_rcu() from cgroup_attach_{task|proc}() Li Zefan
2013-01-14 9:24 ` [PATCH 2/2] cgroup: remove synchronize_rcu() from rebind_subsystems() Li Zefan
2013-01-14 18:55 ` Tejun Heo [this message]
2013-01-14 18:55 ` Tejun Heo
2013-01-14 18:42 ` [PATCH 1/2] cgroup: remove synchronize_rcu() from cgroup_attach_{task|proc}() Tejun Heo
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