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

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Date:	Thu, 28 Nov 2013 14:41:24 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Tejun Heo <htejun@...il.com>, zhang.yi20@....com.cn,
	lkml <linux-kernel@...r.kernel.org>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH]: exec: avoid propagating PF_NO_SETAFFINITY into
 userspace child

On Thu, Nov 28, 2013 at 02:31:52PM +0100, Oleg Nesterov wrote:
> I _guess_ usermodehelper_init() should use WQ_SYSFS then, and in this case
> the user can write to wq_cpumask_store somewhere in /sys/.

WTF is that and why are we creating alternative affinity interfaces when
sched_setaffinity() is a prefectly fine one?
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