Re: [PATCH] cpufreq: prevent 'policy->cpus' become offline in __gov_queue_work()

[Michael Wang]

Hi, Viresh

On 06/05/2013 04:53 PM, Viresh Kumar wrote:
[snip]
>> It was caused by the policy->cpus changed during the process of
>> __gov_queue_work(), in other word, cpu offline happened.
>>
>> This patch will use get/put_online_cpus() to prevent the offline
>> happen inside __gov_queue_work(), after applied the patch, the
>> warning is gone as Jiri tested:
>>
>>         Link: https://lkml.org/lkml/2013/6/5/88
>>
>> CC: "Rafael J. Wysocki" <rjw@xxxxxxx>
>> CC: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
>> Reported-by: Borislav Petkov <bp@xxxxxxxxx>
>> Reported-by: Jiri Kosina <jkosina@xxxxxxx>
>> Tested-by: Jiri Kosina <jkosina@xxxxxxx>
>> Signed-off-by: Michael Wang <wangyun@xxxxxxxxxxxxxxxxxx>
>> ---
>>  drivers/cpufreq/cpufreq_governor.c |    3 +++
>>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

Thanks for your ack :)

Regards,
Michael Wang

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