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sched/rt: Update comment in pick_next_task_rt() 

Commit:

  f4ebcbc0d7 ("sched/rt: Substract number of tasks of throttled queues from rq->nr_running")

added a new rt_rq->rt_queued field, which is used to indicate the status of
rq->rt enqueue or dequeue. So, the ->rt_nr_running check was removed and we
now check ->rt_queued instead.

Fix the comment in pick_next_task_rt() as well, which was still referencing
the old logic.

Signed-off-by: Muchun Song <smuchun@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20181027030517.23292-1-smuchun@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Muchun Song 2018-10-27 11:05:17 +08:00 committed by Ingo Molnar
parent b59dfdaef1
commit a68d75081a
1 changed files with 1 additions and 1 deletions
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2
kernel/sched/rt.c
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@ -1561,7 +1561,7 @@ pick_next_task_rt(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
/* /*
* We may dequeue prev's rt_rq in put_prev_task(). * We may dequeue prev's rt_rq in put_prev_task().
* So, we update time before rt_nr_running check. * So, we update time before rt_queued check.
*/ */
if (prev->sched_class == &rt_sched_class) if (prev->sched_class == &rt_sched_class)
update_curr_rt(rq); update_curr_rt(rq);