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>,
Jiri Slaby <jirislaby@gmail.com>, Li Zefan <lizf@cn.fujitsu.com>,
Miao Xie <miaox@cn.fujitsu.com>, Paul Menage <menage@google.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Rusty Russell <rusty@rustcorp.com.au>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] resend, cpuset/hotplug fixes
Date: Fri, 11 Sep 2009 09:37:39 +0200 [thread overview]
Message-ID: <1252654659.7126.2.camel@laptop> (raw)
In-Reply-To: <4AA9F902.4030306@cn.fujitsu.com>
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?
next prev parent reply other threads:[~2009-09-11 7:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-10 19:21 [PATCH 0/3] resend, cpuset/hotplug fixes Oleg Nesterov
2009-09-10 20:18 ` Rafael J. Wysocki
2009-09-10 20:53 ` Peter Zijlstra
2009-09-11 7:15 ` Lai Jiangshan
2009-09-11 7:33 ` Peter Zijlstra
2009-09-11 7:53 ` Lai Jiangshan
2009-09-11 7:57 ` Peter Zijlstra
2009-09-11 7:37 ` Peter Zijlstra [this message]
2009-09-11 18:03 ` Oleg Nesterov
-- strict thread matches above, loose matches on Subject: below --
2009-09-10 19:13 Oleg Nesterov
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