linux-kernel - Re: [PATCH v2 linux-next 1/2] cpufreq: Convert the cpufreq_driver

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Message-ID: <CAKohpokQwpRqy2h5EwMjP3qxXgS9pqLL1=445J-pkMXgtA6vUA@mail.gmail.com>
Date:	Wed, 6 Feb 2013 08:17:45 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Nathan Zimmer <nzimmer@....com>
Cc:	rjw@...k.pl, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, cpufreq@...r.kernel.org
Subject: Re: [PATCH v2 linux-next 1/2] cpufreq: Convert the
 cpufreq_driver_lock to a rwlock

On 6 February 2013 07:34, Nathan Zimmer <nzimmer@....com> wrote:
> This eliminates the contention I am seeing in __cpufreq_cpu_get.
> It also nicely stages the lock to be replaced by the rcu.
>
> Cc: Viresh Kumar <viresh.kumar@...aro.org>
> Cc: "Rafael J. Wysocki" <rjw@...k.pl>
> Signed-off-by: Nathan Zimmer <nzimmer@....com>
> ---
>  drivers/cpufreq/cpufreq.c | 42 +++++++++++++++++++++---------------------
>  1 file changed, 21 insertions(+), 21 deletions(-)

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