linux-kernel - Re: [PATCH] cpufreq: governors: implement generic policy_is

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Message-ID: <20130131085555.GB30667@balto.lan>
Date:	Thu, 31 Jan 2013 09:55:55 +0100
From:	Fabio Baltieri <fabio.baltieri@...aro.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, cpufreq@...r.kernel.org,
	linux-pm@...r.kernel.org, Linus Walleij <linus.walleij@...aro.org>,
	linaro-dev@...ts.linaro.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpufreq: governors: implement generic policy_is_shared

On Thu, Jan 31, 2013 at 02:01:27PM +0530, Viresh Kumar wrote:
> On 31 January 2013 13:44, Fabio Baltieri <fabio.baltieri@...aro.org> wrote:
> > Implement a generic helper function policy_is_shared() to replace the
> > current dbs_sw_coordinated_cpus() at cpufreq level, so that it can be
> > used by code other than cpufreq governors.
> >
> > Suggested-by: Viresh Kumar <viresh.kumar@...aro.org>
> > Signed-off-by: Fabio Baltieri <fabio.baltieri@...aro.org>
> > ---
> >  drivers/cpufreq/cpufreq_conservative.c | 2 +-
> >  drivers/cpufreq/cpufreq_governor.c     | 8 --------
> >  drivers/cpufreq/cpufreq_governor.h     | 1 -
> >  drivers/cpufreq/cpufreq_ondemand.c     | 2 +-
> >  include/linux/cpufreq.h                | 5 +++++
> 
> Great,
> 
> But, you missed few places:
> 
> drivers/cpufreq/acpi-cpufreq.c:        if (bios_with_sw_any_bug &&
> cpumask_weight(policy->cpus) == 1) {
> drivers/cpufreq/cpufreq_stats.c:       if (policy &&
> (cpumask_weight(policy->cpus) == 1)) {

This doesn't look like the same thing to me!  Isn't this check here just
to trigger during init (exit) on the first (last) cpu?  How would you
replace it?

Fabio

> get these fixed too and add my
> 
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
Fabio Baltieri
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