linux-kernel - Re: [PATCH]: exec: avoid propagating PF_NO

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Date:	Wed, 27 Nov 2013 13:31:17 -0500
From:	Tejun Heo <htejun@...il.com>
To:	zhang.yi20@....com.cn
Cc:	Oleg Nesterov <oleg@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH]: exec: avoid propagating PF_NO_SETAFFINITY into
 userspace child

On Wed, Nov 27, 2013 at 10:07:03AM +0800, zhang.yi20@....com.cn wrote:
> Userspace process doesn't want the PF_NO_SETAFFINITY, but its parent may be
> a kernel worker thread which has PF_NO_SETAFFINITY set, and this worker thread
> can do kernel_thread() to create the child.
> Clearing this flag in usersapce child to enable its migrating capability.
> 
> 
> Signed-off-by: Zhang Yi <zhang.yi20@....com.cn>

Acked-by: Tejun Heo <tj@...nel.org>

cc'ing Ingo and Peter.  Ingo, I think this one doesn't really suit the
workqueue tree.  Can you please pick this one up w/ Oleg's ack added
and stable cc'd?  The original patch is

  http://article.gmane.org/gmane.linux.kernel/1602429/raw

Thanks!

-- 
tejun
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