[PATCH 3/6 v3] sched/eevdf: Update slice protection even when resched is already set

From: Vincent Guittot

Date: Wed Jun 24 2026 - 11:21:34 EST


Even if resched is already set, we might want to update or even cancel
the slice protection and ensure that the newly waking task will be the
next one to run.

Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
Tested-by: K Prateek Nayak <kprateek.nayak@xxxxxxx>
---
kernel/sched/fair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8639086e5d9e..854f3a9f1d80 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -9804,7 +9804,7 @@ static void wakeup_preempt_fair(struct rq *rq, struct task_struct *p, int wake_f
* prevents us from potentially nominating it as a false LAST_BUDDY
* below.
*/
- if (test_tsk_need_resched(rq->curr))
+ if (!sched_feat(PREEMPT_SHORT) && test_tsk_need_resched(rq->curr))
return;

if (!sched_feat(WAKEUP_PREEMPTION))
--
2.43.0