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Re: [RFC PATCH 1/4] cpufreq: governor: support scheduler cpufreq callbacks on remote CPUs

From "Rafael J. Wysocki" <rjw@rjwysocki.net>
Newsgroups linux.kernel
Subject Re: [RFC PATCH 1/4] cpufreq: governor: support scheduler cpufreq callbacks on remote CPUs
Date 2016-04-29 13:20 +0200
Message-ID <rteCJ-4XO-3@gated-at.bofh.it> (permalink)
References <rpQdz-yF-1@gated-at.bofh.it> <rte02-4gY-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Friday, April 29, 2016 04:08:16 PM Viresh Kumar wrote:
> On 19-04-16, 19:39, Steve Muckle wrote:
> > diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
> > index 20f0a4e114d1..429d3a5b9866 100644
> > --- a/drivers/cpufreq/cpufreq_governor.c
> > +++ b/drivers/cpufreq/cpufreq_governor.c
> > @@ -248,6 +248,20 @@ static void dbs_irq_work(struct irq_work *irq_work)
> >  	schedule_work_on(smp_processor_id(), &policy_dbs->work);
> >  }
> >  
> > +#ifdef CONFIG_SMP
> > +static inline void dbs_irq_work_queue(struct policy_dbs_info *policy_dbs,
> > +				      int cpu)
> > +{
> > +	irq_work_queue_on(&policy_dbs->irq_work, cpu);
> > +}
> > +#else
> > +static inline void dbs_irq_work_queue(struct policy_dbs_info *policy_dbs,
> > +				      int cpu)
> > +{
> > +	irq_work_queue(&policy_dbs->irq_work);
> > +}
> > +#endif
> 
> Any clue, why we don't have a non-SMP version of irq_work_queue_on(), Which can
> simply call irq_work_queue() ?

Because nobody else needs it?

But I agree that it would be nicer to add the stub to irq_work.h.

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Re: [RFC PATCH 1/4] cpufreq: governor: support scheduler cpufreq  callbacks on remote CPUs Viresh Kumar <viresh.kumar@linaro.org> - 2016-04-29 12:40 +0200
  Re: [RFC PATCH 1/4] cpufreq: governor: support scheduler cpufreq callbacks on remote CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-04-29 13:20 +0200
    Re: [RFC PATCH 1/4] cpufreq: governor: support scheduler cpufreq  callbacks on remote CPUs Steve Muckle <steve.muckle@linaro.org> - 2016-05-06 23:00 +0200

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