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Re: [PATCH V2 3/4] intel_pstate: Ignore scheduler cpufreq callbacks on remote CPUs

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On 29-06-17, 14:23, Srinivas Pandruvada wrote:
> On Thu, 2017-06-29 at 10:56 +0530, Viresh Kumar wrote:
> > From: Steve Muckle <smuckle.linux@gmail.com>
> > 
> > In preparation for the scheduler cpufreq callback happening on remote
> > CPUs, check for this case in intel_pstate which currently requires
> > the
> > callback run on the local CPU. Such callbacks are ignored for now.
> Is it possible that we miss a chance to calculate load periodically at
> a predefined interval (10ms default), because the callback happened on
> a different CPU?

We aren't updating cpu->sample.time for remote callbacks here, so no
we shouldn't miss anything.

-- 
viresh

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[PATCH V2 0/4] sched: cpufreq: Allow remote callbacks Viresh Kumar <viresh.kumar@linaro.org> - 2017-06-29 07:30 +0200
  [PATCH V2 3/4] intel_pstate: Ignore scheduler cpufreq callbacks on remote CPUs Viresh Kumar <viresh.kumar@linaro.org> - 2017-06-29 07:30 +0200
    Re: [PATCH V2 3/4] intel_pstate: Ignore scheduler cpufreq callbacks  on remote CPUs Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> - 2017-06-29 23:30 +0200
      Re: [PATCH V2 3/4] intel_pstate: Ignore scheduler cpufreq callbacks  on remote CPUs Viresh Kumar <viresh.kumar@linaro.org> - 2017-06-30 05:30 +0200
  Re: [PATCH V2 0/4] sched: cpufreq: Allow remote callbacks "Rafael J. Wysocki" <rafael@kernel.org> - 2017-06-29 22:40 +0200
    Re: [PATCH V2 0/4] sched: cpufreq: Allow remote callbacks Viresh Kumar <viresh.kumar@linaro.org> - 2017-06-30 05:30 +0200

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