linux-kernel - Re: [PATCH v3] cpufreq: Fix timer/workqueue corruption by protecting reading governor

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Date:	Fri, 3 Jan 2014 17:19:19 +0800
From:	Jane Li <jiel@...vell.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] cpufreq: Fix timer/workqueue corruption by protecting
 reading governor_enabled


On 01/03/2014 02:50 PM, Viresh Kumar wrote:
> On 3 January 2014 12:14,  <jiel@...vell.com> wrote:
>> diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
>> index dc196bb..15c62df 100644
>> --- a/include/linux/cpufreq.h
>> +++ b/include/linux/cpufreq.h
>> @@ -389,6 +389,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
>>                                     unsigned int relation);
>>   int cpufreq_register_governor(struct cpufreq_governor *governor);
>>   void cpufreq_unregister_governor(struct cpufreq_governor *governor);
>> +extern struct mutex cpufreq_governor_lock;
>>
>>   /* CPUFREQ DEFAULT GOVERNOR */
>>   /*
> Move this to cpufreq_governor.h instead. I don't want this to be available
> for everybody to use it.

OK. Have pushed PATCH v4. Please review again.

Thanks!

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