Messages in this thread | | | Date | Thu, 5 Mar 2015 09:38:12 +0800 | From | Wanpeng Li <> | Subject | Re: [PATCH] sched/deadline: don't need to check throttled status when switched to dl |
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Ping Juri, On Thu, Feb 26, 2015 at 12:11:04PM +0800, Wanpeng Li wrote: >After commit 40767b0dc768 ("sched/deadline: Fix deadline parameter >modification handling"), deadline task throttled status is cleared >each time switch from dl, so throttled status always unset when >switch back, there is no need to check throttled status, this patch >drop the check. > >Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com> >--- > kernel/sched/deadline.c | 8 -------- > 1 file changed, 8 deletions(-) > >diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c >index ca391c0..cfb8fa7 100644 >--- a/kernel/sched/deadline.c >+++ b/kernel/sched/deadline.c >@@ -1697,14 +1697,6 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p) > { > int check_resched = 1; > >- /* >- * If p is throttled, don't consider the possibility >- * of preempting rq->curr, the check will be done right >- * after its runtime will get replenished. >- */ >- if (unlikely(p->dl.dl_throttled)) >- return; >- > if (task_on_rq_queued(p) && rq->curr != p) { > #ifdef CONFIG_SMP > if (p->nr_cpus_allowed > 1 && rq->dl.overloaded && >-- >1.9.1
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