Re: [PATCH 5/7] cpufreq: Do not update related_cpus on every policy activation

From: Viresh Kumar
Date: Mon Jul 27 2015 - 10:56:58 EST


On 27-07-15, 16:06, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> The related_cpus mask includes CPUs whose cpufreq_cpu_data per-CPU
> pointers have been set to the given policy. Since those pointers
> are only set at the policy creation time and unset when the policy
> is deleted, the related_cpus should not be updated between those
> two operations.
>
> For this reason, avoid updating it whenever the first of the
> "related" CPUs goes online.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> ---
> drivers/cpufreq/cpufreq.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)

Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

--
viresh
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/