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 <yurand2000@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260430213835.62217-2-yurand2000@gmail.com

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index edca7849b165d9e9915c6a8773f63f93286300b1..b60e2df8ff9da3c7465745525a9ac32b5e3f9eae 100644 (file)
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1515,8 +1515,12 @@ throttle:
 
                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);
                        }