From: Jeson Gao <[email protected]> For SMP systems, thermal worker should use power_efficient_wq in power saving mode, that will make scheduler more flexible on selecting an active core for running work handler to avoid keeping work handler always running on a single core, that will save some power.
Even if 'power_efficient_wq' relevant configs are disabled 'system_freezable_power_efficient_wq' is identical to system_freezable_wq, behavior is unchanged. Signed-off-by: Jeson Gao <[email protected]> Signed-off-by: Chunyan Zhang <[email protected]> --- drivers/thermal/thermal_core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 6ab9823..99df89f 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -290,10 +290,12 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, int delay) { if (delay > 1000) - mod_delayed_work(system_freezable_wq, &tz->poll_queue, + mod_delayed_work(system_freezable_power_efficient_wq, + &tz->poll_queue, round_jiffies(msecs_to_jiffies(delay))); else if (delay) - mod_delayed_work(system_freezable_wq, &tz->poll_queue, + mod_delayed_work(system_freezable_power_efficient_wq, + &tz->poll_queue, msecs_to_jiffies(delay)); else cancel_delayed_work(&tz->poll_queue); -- 2.7.4
