[tip: sched/core] sched/eevdf: Remove redundant RUN_TO_PARITY check

[tip-bot2 for Elif Topuz]

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

Commit-ID:     b0f1d7a34d3099973f1ba45d1ce6f36578e510a2
Gitweb:        https://git.kernel.org/tip/b0f1d7a34d3099973f1ba45d1ce6f36578e510a2
Author:        Elif Topuz <elif.topuz@xxxxxxx>
AuthorDate:    Mon, 12 Oct 2026 11:50:01 +01:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Tue, 13 Oct 2026 13:51:28 +02:00

sched/eevdf: Remove redundant RUN_TO_PARITY check

update_protect_slice() is only called from wakeup_preempt_fair() when
RUN_TO_PARITY is enabled. Remove RUN_TO_PARITY check inside
update_protect_slice() and use cfs_rq_min_slice() directly.

Signed-off-by: Elif Topuz <elif.topuz@xxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
Link: https://patch.msgid.link/20261012105001.131311-1-elif.topuz@xxxxxxx
---
 kernel/sched/fair.c |  9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index a58d513..7bf3193 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1089,13 +1089,8 @@ static inline void set_protect_slice(struct cfs_rq *cfs_rq, struct sched_entity 
 static inline void update_protect_slice(struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
 	u64 vruntime = min_vruntime(se->vruntime, avg_vruntime(cfs_rq));
-	u64 slice = normalized_sysctl_sched_base_slice;
-	u64 vprot;
-
-	if (sched_feat(RUN_TO_PARITY))
-		slice = cfs_rq_min_slice(cfs_rq);
-
-	vprot = min_vruntime(se->vprot, vruntime + calc_delta_fair(slice, se));
+	u64 slice = cfs_rq_min_slice(cfs_rq);
+	u64 vprot = min_vruntime(se->vprot, vruntime + calc_delta_fair(slice, se));
 
 	if (sched_feat(PREEMPT_SHORT) && slice != se->slice)
 		vprot = min_vruntime(vprot, ineligible_vruntime(cfs_rq));