From: "yjay.kim" <yjay....@lge.com>
yield_task_dl() sets dl.dl_new as 1 and dequeue current dl task.
After that it expects that next bandwidth timer callback `dl_task_timer()` will
replenish budget of dl task and enqueue it again.
But current dl_task_timer() does nothing in case dl.dl_new is 1.
So when dl task calls sched_yield(), it will never be scheduled again.
dl_task_timer() should works in case dl_new is 1.
Signed-off-by: yjay.kim <yjay....@lge.com>
---
kernel/sched/deadline.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 27ef409..6fb4004 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -522,7 +522,7 @@ static enum hrtimer_restart dl_task_timer(struct hrtimer
*timer)
* different from SCHED_DEADLINE or changed its reservation
* parameters (through sched_setscheduler()).
*/
- if (!dl_task(p) || dl_se->dl_new)
+ if (!dl_task(p))
goto unlock;
sched_clock_tick();
--
1.7.9.5
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