Re: [PATCH V2 3/4] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task
From: Ingo Molnar <mingo@kernel.org>
Date: 2016-11-24 04:51:24
Also in:
lkml
From: Ingo Molnar <mingo@kernel.org>
Date: 2016-11-24 04:51:24
Also in:
lkml
* Viresh Kumar [off-list ref] wrote:
+ /* + * For Real Time and Deadline tasks, schedutil governor shoots the + * frequency to maximum. And special care must be taken to ensure that + * this kthread doesn't result in that. + * + * This is (mostly) guaranteed by the work_in_progress flag. The flag is + * updated only at the end of the sugov_work() and before that schedutil + * rejects all other frequency scaling requests. + * + * Though there is a very rare case where the RT thread yields right + * after the work_in_progress flag is cleared. The effects of that are + * neglected for now. + */
s/schedutil governor/ the schedutil governor s/And special care must be taken/ Special care must be taken s/at the end of the sugov_work()/ at the end of the sugov_work() function s/before that schedutil rejects/ before the schedutil governor rejects s/Though there is a very rare case where There is a very rare case though, where Thanks, Ingo