lkml.org 
[lkml]   [2015]   [Mar]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 1/2] sched/deadline: don't need to check throttled status when switched to dl
Hi Ingo, how about these three patches this time, sorry for my bad english.
On Tue, Mar 17, 2015 at 07:15:30PM +0800, Wanpeng Li wrote:
>After commit 40767b0dc768 ("sched/deadline: Fix deadline parameter
>modification handling") is merged, deadline task throttled status
>is cleared each time once switch from dl class, so throttled status
>always doesn't set when switch back, there is no need to check
>throttled status, this patch drop the check.
>
>Acked-by: Juri Lelli <juri.lelli@arm.com>
>Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
>---
>v2 -> v3:
> * update changelog
>
> kernel/sched/deadline.c | 8 --------
> 1 file changed, 8 deletions(-)
>
>diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
>index 27b9381..eed6529 100644
>--- a/kernel/sched/deadline.c
>+++ b/kernel/sched/deadline.c
>@@ -1722,14 +1722,6 @@ 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


\
 
 \ /
  Last update: 2015-03-19 05:41    [W:0.087 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site