Re: [RFC][PATCH 05/22] sched: SCHED_DEADLINE policy implementation

[Peter Zijlstra]

On Fri, 2010-10-29 at 08:30 +0200, Raistlin wrote:
> +static void check_preempt_curr_dl(struct rq *rq, struct task_struct *p,
> +                                 int flags)
> +{
> +       if (!dl_task(rq->curr) || (dl_task(p) &&
> +           dl_time_before(p->dl.deadline, rq->curr->dl.deadline)))
> +               resched_task(rq->curr);
> +} 

every moment now a patch will hit -tip that ensures
->check_preempt_curr() is only called when both the current and waking
task belong to the same sched_class.
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