diff options
| author |   Juri Lelli <juri.lelli@redhat.com> | 2018-05-09 10:40:51 +0200 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-05-09 12:20:24 +0200 |
| commit | a744490f12707d9f0b205272b29adf5bdb3ba193 (patch) | |
| tree | def3f1cc364888cb0b51f37e2645e733e887b570 /kernel | |
| parent | Linux 4.17-rc4 (diff) | |
| download | linux-dev-a744490f12707d9f0b205272b29adf5bdb3ba193.tar.xz linux-dev-a744490f12707d9f0b205272b29adf5bdb3ba193.zip | |
cpufreq: schedutil: remove stale comment
After commit 794a56ebd9a57 (sched/cpufreq: Change the worker kthread to
SCHED_DEADLINE) schedutil kthreads are "ignored" for a clock frequency
selection point of view, so the potential corner case for RT tasks is not
possible at all now.
Remove the stale comment mentioning it.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/cpufreq_schedutil.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index d2c6083304b4..23ef19070137 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -396,19 +396,6 @@ static void sugov_irq_work(struct irq_work *irq_work) sg_policy = container_of(irq_work, struct sugov_policy, irq_work); - /* - * For RT tasks, the schedutil governor shoots the frequency to maximum. - * Special care must be taken to ensure that this kthread doesn't result - * in the same behavior. - * - * This is (mostly) guaranteed by the work_in_progress flag. The flag is - * updated only at the end of the sugov_work() function and before that - * the schedutil governor rejects all other frequency scaling requests. - * - * There is a very rare case though, where the RT thread yields right - * after the work_in_progress flag is cleared. The effects of that are - * neglected for now. - */ kthread_queue_work(&sg_policy->worker, &sg_policy->work); } |