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sched/deadline: Fix replenishment logic for non-deferred servers

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Enqueue and replenish non-deferred deadline servers when their runtime is
exhausted and the replenishment timer could not be started because it is
too close to the wake-up instant.

Signed-off-by: Yuri Andriaccio <yurand2000@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260430213835.62217-2-yurand2000@gmail.com
This commit is contained in:
Yuri Andriaccio 2026-04-30 23:38:05 +02:00 committed by Peter Zijlstra
parent c2e390197a
commit eecd5e117c
1 changed files with 6 additions and 2 deletions
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8
kernel/sched/deadline.c
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@ -1515,8 +1515,12 @@ static void update_curr_dl_se(struct rq *rq, struct sched_dl_entity *dl_se, s64
if (unlikely(is_dl_boosted(dl_se) || !start_dl_timer(dl_se))) {
if (dl_server(dl_se)) {
replenish_dl_new_period(dl_se, rq);
start_dl_timer(dl_se);
if (dl_se->dl_defer) {
replenish_dl_new_period(dl_se, rq);
start_dl_timer(dl_se);
} else {
enqueue_dl_entity(dl_se, ENQUEUE_REPLENISH);
}
} else {
enqueue_task_dl(rq, dl_task_of(dl_se), ENQUEUE_REPLENISH);
}