cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()
authorViresh Kumar <viresh.kumar@linaro.org>
Tue, 13 Oct 2015 08:09:01 +0000 (13:39 +0530)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 28 Oct 2015 08:20:04 +0000 (09:20 +0100)
commit083701b13c79a908fb400dc24aaa80aad07ac462
tree6d7b18c3bbdab77988aff701366c20513420966c
parent51443fbf3d2cde16011b994252c8004ebcd66fb0
cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()

'timer_mutex' is required to sync work-handlers of policy->cpus.
update_sampling_rate() is just canceling the works and queuing them
again. This isn't protecting anything at all in update_sampling_rate()
and is not gonna be of any use.

Even if a work-handler is already running for a CPU,
cancel_delayed_work_sync() will wait for it to finish.

Drop these unnecessary locks.

Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/cpufreq/cpufreq_ondemand.c