Re: [PATCH][BUGFIX] cgroups: fix ordering of calls in cgroup_attach_proc

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To: Ben Blum <bblum@xxxxxxxxxxxxxx>
Subject: Re: [PATCH][BUGFIX] cgroups: fix ordering of calls in cgroup_attach_proc
From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Date: Tue, 16 Aug 2011 01:20:39 +0200
Cc: NeilBrown <neilb@xxxxxxx>, containers@xxxxxxxxxxxxxxxxxxxxxxxxxx, Oleg Nesterov <oleg@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Paul Menage <menage@xxxxxxxxxx>, paulmck@xxxxxxxxxxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
In-reply-to: <20110815231156.GC6867@unix33.andrew.cmu.edu>
User-agent: Mutt/1.5.21 (2010-09-15)

On Mon, Aug 15, 2011 at 07:11:56PM -0400, Ben Blum wrote:
> Fix ordering of cgroup_task_migrate and attach_task in cgroup_attach_proc.
> 
> Signed-off-by: Ben Blum <bblum@xxxxxxxxxxxxxx>

Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
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References:
- Possible race between cgroup_attach_proc and de_thread, and questionable code in de_thread.
  - From: NeilBrown
- Re: Possible race between cgroup_attach_proc and de_thread, and questionable code in de_thread.
  - From: Ben Blum
- Re: Possible race between cgroup_attach_proc and de_thread, and questionable code in de_thread.
  - From: Paul E. McKenney
- Re: Possible race between cgroup_attach_proc and de_thread, and questionable code in de_thread.
  - From: NeilBrown
- Re: Possible race between cgroup_attach_proc and de_thread, and questionable code in de_thread.
  - From: Ben Blum
- Re: Possible race between cgroup_attach_proc and de_thread, and questionable code in de_thread.
  - From: NeilBrown
- [PATCH][BUGFIX] cgroups: more safe tasklist locking in cgroup_attach_proc
  - From: Ben Blum
- Re: [PATCH][BUGFIX] cgroups: more safe tasklist locking in cgroup_attach_proc
  - From: Oleg Nesterov
- Re: [PATCH][BUGFIX] cgroups: more safe tasklist locking in cgroup_attach_proc
  - From: Frederic Weisbecker
- [PATCH][BUGFIX] cgroups: fix ordering of calls in cgroup_attach_proc
  - From: Ben Blum

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