Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

PM / devfreq: Make the monitor workqueue high priority

Browse source 
Running the devfreq monitor in a normal-priority workqueue can result
in the devfreq mutex lock being held for a while when the monitor
worker sleeps inside update_devfreq(). Freeing up the devfreq mutex
lock is important to ensure timely devfreq boosts, so run the monitor
workqueue in a high-priority workqueue to reduce the lock duration.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: celtare21 <celtare21@gmail.com>
This commit is contained in:
Sultan Alsawaf 2021-01-24 18:02:24 -08:00 committed by Ksawlii
parent bd260c10fc
commit cb79672815
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/devfreq/devfreq.c
View file

@ -1906,7 +1906,8 @@ static int __init devfreq_init(void)
return PTR_ERR(devfreq_class); return PTR_ERR(devfreq_class);
} }
devfreq_wq = create_freezable_workqueue("devfreq_wq"); devfreq_wq = alloc_workqueue("devfreq_wq", WQ_HIGHPRI | WQ_FREEZABLE |
WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
if (!devfreq_wq) { if (!devfreq_wq) {
class_destroy(devfreq_class); class_destroy(devfreq_class);
pr_err("%s: couldn't create workqueue\n", __FILE__); pr_err("%s: couldn't create workqueue\n", __FILE__);