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SubjectRe: [PATCH 2/2] cpufreq: make sure frequency transitions are serialized
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On 12 September 2013 15:40, Viresh Kumar <viresh.kumar@linaro.org> wrote:
> Some part of this patch was pushed in mainline earlier but was then removed due
> to loopholes in the patch. Those are now fixed and this patch is tested by the
> people who reported these problems.
>
> Whenever we are changing frequency of a cpu, we are calling PRECHANGE and
> POSTCHANGE notifiers. They must be serialized. i.e. PRECHANGE or POSTCHANGE
> shouldn't be called twice contiguously. Also, calls to cpufreq_driver_target()
> or cpufreq_driver->target() must also be serialized. Following examples show why
> this is important:

Adding:

Tested-by: Stephen Warren <swarren@nvidia.com>

Picked from the other thread..


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