We close idle_exit_fair() bracket in case of we've pulled something or we've received
task of high priority class.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: http://lkml.kernel.org/r/1394098315.19290.10.camel@tkhai
Signed-off-by: Ingo Molnar <mingo@kernel.org>
+ new_tasks = idle_balance(rq);
/*
* Because idle_balance() releases (and re-acquires) rq->lock, it is
* possible for any higher priority task to appear. In that case we
* must re-start the pick_next_entity() loop.
*/
/*
* Because idle_balance() releases (and re-acquires) rq->lock, it is
* possible for any higher priority task to appear. In that case we
* must re-start the pick_next_entity() loop.
*/
- new_tasks = idle_balance(rq);
-
- if (rq->nr_running != rq->cfs.h_nr_running)
this_rq->max_idle_balance_cost = curr_cost;
out:
this_rq->max_idle_balance_cost = curr_cost;
out:
+ /* Is there a task of a high priority class? */
+ if (this_rq->nr_running != this_rq->cfs.h_nr_running)
+ pulled_task = -1;
+
+ if (pulled_task) {
+ idle_exit_fair(this_rq);
put_prev_task(rq, prev);
schedstat_inc(rq, sched_goidle);
put_prev_task(rq, prev);
schedstat_inc(rq, sched_goidle);