Messages in this thread | | | Date | Wed, 2 Dec 2009 23:07:46 -0800 | From | Arjan van de Ven <> | Subject | Re: Should we use preempt_disable() in sleep_on_common()? |
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On Thu, 3 Dec 2009 14:49:14 +0800 liu pf <kernelfans@gmail.com> wrote:
> Hi: > > I am puzzled with the following scenario. Could anyone enlighten me?
sleep_on family of APIs is very racy and just cannot be used correctly; I'm not surprised that there's a preempt race in it, but trust me, it's not the biggest race... never ever use these APIs!!!
-- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org
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