Messages in this thread Patch in this message | | | From | Wanpeng Li <> | Subject | [PATCH v2 6/7] sched/core: remove superfluous resetting of dl_throttled flag | Date | Wed, 13 May 2015 14:01:06 +0800 |
| |
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 <wanpeng.li@linux.intel.com> --- 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 355f953..a9fd4916 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3087,7 +3087,6 @@ 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
| |