Messages in this thread | | | Date | Thu, 3 Dec 2009 16:15:49 +0800 | Subject | Re: Should we use preempt_disable() in sleep_on_common()? | From | liu pf <> |
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On Thu, Dec 3, 2009 at 3:12 PM, Dmitry Torokhov <dmitry.torokhov@gmail.com> wrote: > On Wed, Dec 02, 2009 at 11:07:46PM -0800, Arjan van de Ven wrote: >> 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!!! >> >> > > BTW, why do we still have them? I checked couple and they don't seem to > be used... > > -- > Dmitry >
Hi, what is the substitution for sleep_on family of APIs? Any sample code?
Thanks
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