Re: [PATCH] kernel/sched/rt: Add a rescheduling point

[Sebastian Andrzej Siewior]

On 2017-01-24 15:40:06 [+0100], To Peter Zijlstra wrote:
> Since the change in commit fd7a4bed1835 ("sched, rt: Convert
> switched_{from, to}_rt() / prio_changed_rt() to balance callbacks") we
> don't reschedule a task under certain circumstances:

|switched_to_dl()
|{
|â
|         if (rq->curr != p) {
| #ifdef CONFIG_SMP
|                 if (tsk_nr_cpus_allowed(p) > 1 && rq->dl.overloaded)
|                         queue_push_tasks(rq);
| #else
|                 if (dl_task(rq->curr))
|                         check_preempt_curr_dl(rq, p, 0);
|                 else
|                         resched_curr(rq);
| #endif
|         }
| }

This looks like it asks for a similar change.

Sebastian