From eecd5e117cfa63a353f4c69fdcea5d9b14af698e Mon Sep 17 00:00:00 2001 From: Yuri Andriaccio Date: Thu, 30 Apr 2026 23:38:05 +0200 Subject: [PATCH] sched/deadline: Fix replenishment logic for non-deferred servers 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 Signed-off-by: Peter Zijlstra (Intel) Link: https://patch.msgid.link/20260430213835.62217-2-yurand2000@gmail.com --- kernel/sched/deadline.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index edca7849b165..b60e2df8ff9d 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -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); }