Viresh Kumar e73476949c
cpufreq: stats: don't update stats on false notifiers ...
We need to call cpufreq_stats_update() to update 'time_in_state' for the last
frequency. This is achieved by calling it from cpufreq_stat_notifier_trans(),
which is called after frequency transition.
But if we detect that the cpu's frequency haven't really changed and its a false
POSTCHANGE notification, we don't really need to update time_in_state.
It wouldn't cause any harm in calling cpufreq_stats_update() but we can avoid
calling it here and call it when the frequency really changes. The result will
be the same but more efficient.
Reviewed-by: Prarit Bhargava <prarit@redhat.com >
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org >
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com >
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Viresh Kumar
e73476949c