linux-kernel - [tip: sched/core] sched/deadline: remove unused dl

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Date:   Wed, 31 May 2023 12:04:48 -0000
From:   "tip-bot2 for Miaohe Lin" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Miaohe Lin <linmiaohe@...wei.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: sched/core] sched/deadline: remove unused dl_bandwidth

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

Commit-ID:     3f4bf7aa315bf55b2a569bf77f61ff81c7e11fc1
Gitweb:        https://git.kernel.org/tip/3f4bf7aa315bf55b2a569bf77f61ff81c7e11fc1
Author:        Miaohe Lin <linmiaohe@...wei.com>
AuthorDate:    Wed, 24 May 2023 18:25:14 +08:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Tue, 30 May 2023 22:46:26 +02:00

sched/deadline: remove unused dl_bandwidth

The default deadline bandwidth control structure has been removed since
commit eb77cf1c151c ("sched/deadline: Remove unused def_dl_bandwidth")
leading to unused init_dl_bandwidth() and struct dl_bandwidth. Remove
them to clean up the code.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Acked-by: Juri Lelli <juri.lelli@...hat.com>
Link: https://lore.kernel.org/r/20230524102514.407486-1-linmiaohe@huawei.com
---
 kernel/sched/deadline.c | 7 -------
 kernel/sched/sched.h    | 7 -------
 2 files changed, 14 deletions(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 5a9a4b8..f827067 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -489,13 +489,6 @@ static inline int is_leftmost(struct task_struct *p, struct dl_rq *dl_rq)
 
 static void init_dl_rq_bw_ratio(struct dl_rq *dl_rq);
 
-void init_dl_bandwidth(struct dl_bandwidth *dl_b, u64 period, u64 runtime)
-{
-	raw_spin_lock_init(&dl_b->dl_runtime_lock);
-	dl_b->dl_period = period;
-	dl_b->dl_runtime = runtime;
-}
-
 void init_dl_bw(struct dl_bw *dl_b)
 {
 	raw_spin_lock_init(&dl_b->lock);
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 6784462..d8ba81c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -286,12 +286,6 @@ struct rt_bandwidth {
 
 void __dl_clear_params(struct task_struct *p);
 
-struct dl_bandwidth {
-	raw_spinlock_t		dl_runtime_lock;
-	u64			dl_runtime;
-	u64			dl_period;
-};
-
 static inline int dl_bandwidth_enabled(void)
 {
 	return sysctl_sched_rt_runtime >= 0;
@@ -2394,7 +2388,6 @@ extern struct rt_bandwidth def_rt_bandwidth;
 extern void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime);
 extern bool sched_rt_bandwidth_account(struct rt_rq *rt_rq);
 
-extern void init_dl_bandwidth(struct dl_bandwidth *dl_b, u64 period, u64 runtime);
 extern void init_dl_task_timer(struct sched_dl_entity *dl_se);
 extern void init_dl_inactive_task_timer(struct sched_dl_entity *dl_se);