From: Vincent Guittot <vincent.guittot@linaro.org>
Date: Tue, 8 Jul 2025 16:56:25 +0000 (+0200)
Subject: sched/fair: Use protect_slice() instead of direct comparison
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9cdb4fe20cd239c848b5c3f5753d83a9443ba329;p=thirdparty%2Fkernel%2Fstable.git

sched/fair: Use protect_slice() instead of direct comparison

Replace the test by the relevant protect_slice() function.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dhaval Giani (AMD) <dhaval@gianis.ca>
Link: https://lkml.kernel.org/r/20250708165630.1948751-2-vincent.guittot@linaro.org
---

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index a1350c513a87..43fe5c831dd5 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1161,7 +1161,7 @@ static inline bool did_preempt_short(struct cfs_rq *cfs_rq, struct sched_entity
 	if (!sched_feat(PREEMPT_SHORT))
 		return false;
 
-	if (curr->vlag == curr->deadline)
+	if (protect_slice(curr))
 		return false;
 
 	return !entity_eligible(cfs_rq, curr);