Resetting dl_throttled flag in rt_mutex_setprio (for a task that is going to be boosted) is superfluous, as the natural place to do so is in replenish_dl_entity(). If the task was on the runqueue and it is boosted by a DL task, it will be enqueued back with ENQUEUE_REPLENISH flag set, which can guarantee that dl_throttled is reset in replenish_dl_entity().
This patch drops the resetting of throttled status in function rt_mutex_setprio(). Signed-off-by: Wanpeng Li <[email protected]> --- v1 -> v2: * rewrite patch subject and changelog kernel/sched/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 5140db6..ef2ddd6 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3076,7 +3076,6 @@ void rt_mutex_setprio(struct task_struct *p, int prio) if (!dl_prio(p->normal_prio) || (pi_task && dl_entity_preempt(&pi_task->dl, &p->dl))) { p->dl.dl_boosted = 1; - p->dl.dl_throttled = 0; enqueue_flag = ENQUEUE_REPLENISH; } else p->dl.dl_boosted = 0; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
