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Subject: Re: [PATCH 0/3] resend, cpuset/hotplug fixes
From: Peter Zijlstra <peterz@infradead.org>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Oleg Nesterov <oleg@redhat.com>, Andrew Morton <akpm@linux-foundation.org>,
       Gautham Shenoy <ego@in.ibm.com>, Ingo Molnar <mingo@elte.hu>,
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Date: Fri, 11 Sep 2009 09:37:39 +0200
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On Fri, 2009-09-11 at 15:15 +0800, Lai Jiangshan wrote:
> 
> I have different concept. cpuset_cpus_allowed() is not called at atomic
> context nor non-preemptable context nor other critical context.
> So it should be allowed to use mutexs. That's what I think.

It hardly does any work at all, so why bother with a mutex?