Commit-ID: 6713c3aa7f63626c0cecf9c509fb48d885b2dd12 Gitweb: http://git.kernel.org/tip/6713c3aa7f63626c0cecf9c509fb48d885b2dd12 Author: Wanpeng Li <wanpeng...@linux.intel.com> AuthorDate: Wed, 13 May 2015 14:01:06 +0800 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Fri, 19 Jun 2015 10:06:47 +0200
sched: Remove superfluous resetting of the p->dl_throttled flag Resetting the p->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...@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Borislav Petkov <b...@alien8.de> Cc: H. Peter Anvin <h...@zytor.com> Cc: Juri Lelli <juri.le...@arm.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Link: http://lkml.kernel.org/r/1431496867-4194-6-git-send-email-wanpeng...@linux.intel.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- kernel/sched/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 1428c7c..10338ce 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3099,7 +3099,6 @@ 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
