linux-kernel - Re: [PATCH 1/1] usermodehelper: kill ____call_usermodehelper()->set_cpus_allowed

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Date:	Fri, 6 Dec 2013 15:37:13 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Oleg Nesterov <oleg@...hat.com>
cc:	Tejun Heo <htejun@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>, 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 1/1] usermodehelper: kill
 ____call_usermodehelper()->set_cpus_allowed_ptr()

On Fri, 6 Dec 2013, Oleg Nesterov wrote:

> This probably means that Tejun's "default attributes which are inherited
> by all workqueues" suggestion was right.

There are workqueues that are required to run on specific nodes /
processors. Those cannot inherit these attributes and would need to be
used regardless of the attributes if the kernel code demands it.



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