Messages in this thread Patch in this message | | | From | Chunyan Zhang <> | Subject | [PATCH] thermal: core: using power_efficient_wq for thermal worker | Date | Tue, 4 Sep 2018 14:37:48 +0800 |
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From: Jeson Gao <jeson.gao@unisoc.com>
For SMP systems, thermal worker should use power_efficient_wq in power saving mode, that will make scheduler more flexible on switching cpu on/off for running work handler to avoid keeping work handler always running on a single core, that will same 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 <jeson.gao@unisoc.com> Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com> --- 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
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