[tip: sched/core] sched/rt: Cleanup global RT bandwidth functions

[tip-bot2 for Michal Koutný]

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

Commit-ID:     985215804dcbf02ab675977e770708e3f084e9fc
Gitweb:        https://git.kernel.org/tip/985215804dcbf02ab675977e770708e3f084e9fc
Author:        Michal Koutný <mkoutny@xxxxxxxx>
AuthorDate:    Mon, 23 Mar 2026 13:39:39 +01:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Wed, 08 Apr 2026 13:11:44 +02:00

sched/rt: Cleanup global RT bandwidth functions

The commit 5f6bd380c7bdb ("sched/rt: Remove default bandwidth control")
and followup changes made a few of the functions unnecessary, drop them
for simplicity.

Signed-off-by: Michal Koutný <mkoutny@xxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://patch.msgid.link/20260323-sched-rert_groups-v3-3-1e7d5ed6b249@xxxxxxxx
---
 kernel/sched/rt.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index e16d8f1..4ee8faf 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -2829,13 +2829,6 @@ long sched_group_rt_period(struct task_group *tg)
 	return rt_period_us;
 }
 
-#ifdef CONFIG_SYSCTL
-static int sched_rt_global_constraints(void)
-{
-	return 0;
-}
-#endif /* CONFIG_SYSCTL */
-
 int sched_rt_can_attach(struct task_group *tg, struct task_struct *tsk)
 {
 	/* Don't accept real-time tasks when there is no way for them to run */
@@ -2845,14 +2838,6 @@ int sched_rt_can_attach(struct task_group *tg, struct task_struct *tsk)
 	return 1;
 }
 
-#else /* !CONFIG_RT_GROUP_SCHED: */
-
-#ifdef CONFIG_SYSCTL
-static int sched_rt_global_constraints(void)
-{
-	return 0;
-}
-#endif /* CONFIG_SYSCTL */
 #endif /* !CONFIG_RT_GROUP_SCHED */
 
 #ifdef CONFIG_SYSCTL
@@ -2874,10 +2859,6 @@ static int sched_rt_global_validate(void)
 	return 0;
 }
 
-static void sched_rt_do_global(void)
-{
-}
-
 static int sched_rt_handler(const struct ctl_table *table, int write, void *buffer,
 		size_t *lenp, loff_t *ppos)
 {
@@ -2901,11 +2882,6 @@ static int sched_rt_handler(const struct ctl_table *table, int write, void *buff
 		if (ret)
 			goto undo;
 
-		ret = sched_rt_global_constraints();
-		if (ret)
-			goto undo;
-
-		sched_rt_do_global();
 		sched_dl_do_global();
 	}
 	if (0) {