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Re: [PATCH V2 0/4] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task

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Hi Viresh,

On Tue, Nov 15, 2016 at 01:53:19PM +0530, Viresh Kumar wrote:
> This work was started by Steve Muckle, where he used a simple kthread
> instead of kthread-worker and that wasn't sufficient as some guarantees
> weren't met.

I know this has already gone in, but can you expand on the unmet
guarantees mentioned here just for my own (and perhaps others')
understanding?

thanks,
Steve

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[PATCH V2 0/4] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task Viresh Kumar <viresh.kumar@linaro.org> - 2016-11-15 09:30 +0100
  [PATCH V2 2/4] cpufreq: schedutil: enable fast switch earlier Viresh Kumar <viresh.kumar@linaro.org> - 2016-11-15 09:30 +0100
  [PATCH V2 4/4] cpufreq: schedutil: irq-work and mutex are only used in slow path Viresh Kumar <viresh.kumar@linaro.org> - 2016-11-15 09:30 +0100
    Re: [PATCH V2 4/4] cpufreq: schedutil: irq-work and mutex are only  used in slow path Ingo Molnar <mingo@kernel.org> - 2016-11-24 06:00 +0100
      Re: [PATCH V2 4/4] cpufreq: schedutil: irq-work and mutex are only  used in slow path Viresh Kumar <viresh.kumar@linaro.org> - 2016-11-24 07:20 +0100
        Re: [PATCH V2 4/4] cpufreq: schedutil: irq-work and mutex are only  used in slow path Ingo Molnar <mingo@kernel.org> - 2016-11-24 07:30 +0100
  [PATCH V2 3/4] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task Viresh Kumar <viresh.kumar@linaro.org> - 2016-11-15 09:30 +0100
    Re: [PATCH V2 3/4] cpufreq: schedutil: move slow path from workqueue  to SCHED_FIFO task Peter Zijlstra <peterz@infradead.org> - 2016-11-16 16:30 +0100
      Re: [PATCH V2 3/4] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-11-24 02:20 +0100
    Re: [PATCH V2 3/4] cpufreq: schedutil: move slow path from workqueue  to SCHED_FIFO task Ingo Molnar <mingo@kernel.org> - 2016-11-24 06:00 +0100
      Re: [PATCH V2 3/4] cpufreq: schedutil: move slow path from workqueue  to SCHED_FIFO task Viresh Kumar <viresh.kumar@linaro.org> - 2016-11-24 06:20 +0100
  Re: [PATCH V2 0/4] cpufreq: schedutil: move slow path from workqueue  to SCHED_FIFO task Steve Muckle <smuckle.linux@gmail.com> - 2016-11-24 04:10 +0100
    Re: [PATCH V2 0/4] cpufreq: schedutil: move slow path from workqueue  to SCHED_FIFO task Viresh Kumar <viresh.kumar@linaro.org> - 2016-11-24 05:10 +0100

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