Re: [PATCH V3 2/3] sched/deadline: Throttle a constrained deadline task activated after the deadline

[Daniel Bristot de Oliveira]

On 02/28/2017 11:07 AM, Daniel Bristot de Oliveira wrote:
> +	if (!pi_se->dl_throttled && dl_is_constrained(pi_se))
> +		dl_check_constrained_dl(pi_se);
> +

me--, it should be &p->dl, not pi_se. This is not causing problems in
the test case because pi_se = &p->dl, but this would be a problem if we
were activating the task in a PI case: it would check the pi-waiter, not
the task being awakened (p).

In the dl_check_constrained_dl(), the patch is already avoiding
throttling if the task is "dl_boosted." So it is ready to avoid
throttling the task in the PI control.

Cooking a v4, sorry for the noise.

-- Daniel