linux-kernel - Re: [PATCH -next] cpuset: initialize cpuset a bit early

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Message-ID: <20150305130603.GD23912@htj.duckdns.org>
Date:	Thu, 5 Mar 2015 08:06:03 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Zefan Li <lizefan@...wei.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Cgroups <cgroups@...r.kernel.org>,
	Ming Lei <tom.leiming@...il.com>,
	Vladimir Davydov <vdavydov@...allels.com>
Subject: Re: [PATCH -next] cpuset: initialize cpuset a bit early

On Wed, Mar 04, 2015 at 05:09:33PM +0800, Zefan Li wrote:
> Now we call ss->bind() in cgroup_init(), so cgroup_init() will
> call cpuset_bind() and then the latter will access top_cpuset's
> cpumask, which is NULL, because cpuset_init() is called after
> cgroup_init()
> 
> The simplest fix is to swap cgroup_init() and cpuset_init().
> 
> Cc: Vladimir Davydov <vdavydov@...allels.com>
> Fixes: 295458e67284 ("cgroup: call cgroup_subsys->bind on cgroup subsys initialization")
> Reported by: Ming Lei <tom.leiming@...il.com>
> Signed-off-by: Zefan Li <lizefan@...wei.com>

Applied to cgroup/for-4.1.

Thanks.

-- 
tejun
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