Messages in this thread | | | Date | Thu, 14 Aug 2014 15:13:04 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] cpuidle: Fix the CPU stuck at C0 for 2-3s after PM_QOS back to DEFAULT |
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On Thu, Aug 14, 2014 at 11:24:06AM +0000, Liu, Chuansheng wrote: > If inspecting the polling flag, we can not fix the race between poll_idle and smp_callback, > since in poll_idle(), before set polling flag, if the smp_callback come in, then no resched bit set, > after that, poll_idle() will do the polling action, without reselection immediately, it will bring power > regression here.
-ENOPARSE. Is there a question there? [unhandled content-type:application/pgp-signature] | |