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Re: [PATCH] cpufreq: schedutil: Update last_update from sugov_set_iowait_boost()

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On 18/07/17 16:55, Viresh Kumar wrote:
> On 18-07-17, 12:20, Juri Lelli wrote:
> > Hi Viresh,
> > 
> > On 18/07/17 10:24, Viresh Kumar wrote:

[...]

> > 
> > It actually belongs here, IMHO. We update other fields (util, max,
> > flags)
> 
> Yeah, because they have bigger roles and aren't specific to iowait
> boost.
> 
> > before looking at iowait. Why hiding the time update into a
> > function dealing with only one of such fields?
> 
> But last_update is very much specific to iowait_boost only and so it
> should be updated from sugov_set_iowait_boost() IMHO.
> 

Huh, I see you point. However, I'm using it also to deal with stale CFS
util values in my patches [1]. Sure, not mainline yet, but I guess I'll
have to sort of revert your proposed change for my next version. Or
think of a better idea. :)

Thanks,

- Juri

[1] http://marc.info/?l=linux-kernel&m=149924526528298&w=2

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[PATCH] cpufreq: schedutil: Update last_update from sugov_set_iowait_boost() Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-18 07:00 +0200
  Re: [PATCH] cpufreq: schedutil: Update last_update from  sugov_set_iowait_boost() Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-18 13:30 +0200
    Re: [PATCH] cpufreq: schedutil: Update last_update from  sugov_set_iowait_boost() Juri Lelli <Juri.Lelli@arm.com> - 2017-07-18 13:40 +0200
      Re: [PATCH] cpufreq: schedutil: Update last_update from sugov_set_iowait_boost() "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-07-19 00:30 +0200
  Re: [PATCH] cpufreq: schedutil: Update last_update from  sugov_set_iowait_boost() Juri Lelli <Juri.Lelli@arm.com> - 2017-07-18 13:30 +0200

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