linux-kernel - Re: + cgroups-fix-ordering-of-calls-in-cgroup_attach

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Message-ID: <20110826155011.GA18410@redhat.com>
Date:	Fri, 26 Aug 2011 17:50:11 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	bblum@...rew.cmu.edu, fweisbec@...il.com, lizf@...fujitsu.com,
	paul@...lmenage.org
Subject: Re: + cgroups-fix-ordering-of-calls-in-cgroup_attach_proc.patch
	added to -mm tree

Hi Tejun,

On 08/26, Tejun Heo wrote:
>
> Please take a look at the following series.
>
>   http://thread.gmane.org/gmane.linux.kernel/1184375

OK, thanks... looks like 1/6 conflicts with this patch ;)

Tejun, I'll appreciate if you can send me this thread in mbox format
privately. I don't think I can help, just I am curious.

> attach racing against exit/exec is problematic and maybe we should
> extend task->threadgroup_fork_lock protection to cover both exit and
> exec.  I can't like it tho.

Yes...

Oleg.

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