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cpufreq: Convert the cpufreq_driver_lock to a rwlock
authorNathan Zimmer <nzimmer@sgi.com>
Fri, 22 Feb 2013 16:24:34 +0000 (16:24 +0000)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Sun, 31 Mar 2013 23:11:34 +0000 (01:11 +0200)
This eliminates the contention I am seeing in __cpufreq_cpu_get.
It also nicely stages the lock to be replaced by the rcu.

Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

No differences found
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