linux-kernel - Re: [RFC PATCH 15/19] cpufreq: remove useless usage of cpufreq_governor_mutex in __cpufreq

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Message-ID: <20160120103008.GC18097@vireshk>
Date:	Wed, 20 Jan 2016 16:00:08 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Juri Lelli <juri.lelli@....com>
Cc:	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	peterz@...radead.org, rjw@...ysocki.net, mturquette@...libre.com,
	steve.muckle@...aro.org, vincent.guittot@...aro.org,
	morten.rasmussen@....com, dietmar.eggemann@....com
Subject: Re: [RFC PATCH 15/19] cpufreq: remove useless usage of
 cpufreq_governor_mutex in __cpufreq_governor

On 20-01-16, 10:27, Juri Lelli wrote:
> That is what I expect as well, but you never know ;).

Perhaps not. We are talking about policy->rwsem here being used while
reading the values of governor's sysfs files. And that lock is only
taken for single governor case.

-- 
viresh