Re: [PATCH 4/6] sched/dl: push task away if the deadline is equal to curr during wakeup

Juri Lelli
2014-10-29T17:08:46Z

Hi,

On 27/10/14 01:41, Wanpeng Li wrote:
> This patch pushes task away if the dealine of the task is equal
> to current during wake up. The same behavior as rt class.
>

Right.

Thanks,

- Juri

> Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
> ---
> kernel/sched/deadline.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
> index aa7c27f..97141e2 100644
> --- a/kernel/sched/deadline.c
> +++ b/kernel/sched/deadline.c
> @@ -1492,7 +1492,7 @@ static void task_woken_dl(struct rq *rq, struct task_struct *p)
> p->nr_cpus_allowed > 1 &&
> dl_task(rq->curr) &&
> (rq->curr->nr_cpus_allowed < 2 ||
> - dl_entity_preempt(&rq->curr->dl, &p->dl))) {
> + !dl_entity_preempt(&p->dl, &rq->curr->dl))) {
> push_dl_tasks(rq);
> }
> }
>