linux-kernel - [tip: sched/core] sched/fair: Use protect

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Message-ID: <175215159543.406.15190067202942866809.tip-bot2@tip-bot2>
Date: Thu, 10 Jul 2025 12:46:35 -0000
From: "tip-bot2 for Vincent Guittot" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Vincent Guittot <vincent.guittot@...aro.org>,
 "Peter Zijlstra (Intel)" <peterz@...radead.org>,
 "Dhaval Giani (AMD)" <dhaval@...nis.ca>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: sched/core] sched/fair: Use protect_slice() instead of direct
 comparison

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     9cdb4fe20cd239c848b5c3f5753d83a9443ba329
Gitweb:        https://git.kernel.org/tip/9cdb4fe20cd239c848b5c3f5753d83a9443ba329
Author:        Vincent Guittot <vincent.guittot@...aro.org>
AuthorDate:    Tue, 08 Jul 2025 18:56:25 +02:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Wed, 09 Jul 2025 13:40:22 +02:00

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@...aro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Dhaval Giani (AMD) <dhaval@...nis.ca>
Link: https://lkml.kernel.org/r/20250708165630.1948751-2-vincent.guittot@linaro.org
---
 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 a1350c5..43fe5c8 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);