linux-kernel - [tip:sched/core] sched/sysctl: Remove unused sched_time_avg

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Message-ID: <tip-5fd778915ad29184a5ff8eb82d1118f6916b79e4@git.kernel.org>
Date:   Sun, 15 Jul 2018 16:33:41 -0700
From:   tip-bot for Vincent Guittot <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     torvalds@...ux-foundation.org, keescook@...omium.org,
        hpa@...or.com, linux-kernel@...r.kernel.org, peterz@...radead.org,
        mcgrof@...nel.org, mingo@...nel.org, tglx@...utronix.de,
        vincent.guittot@...aro.org
Subject: [tip:sched/core] sched/sysctl: Remove unused sched_time_avg_ms
 sysctl

Commit-ID:  5fd778915ad29184a5ff8eb82d1118f6916b79e4
Gitweb:     https://git.kernel.org/tip/5fd778915ad29184a5ff8eb82d1118f6916b79e4
Author:     Vincent Guittot <vincent.guittot@...aro.org>
AuthorDate: Thu, 28 Jun 2018 17:45:14 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 16 Jul 2018 00:16:29 +0200

sched/sysctl: Remove unused sched_time_avg_ms sysctl

/proc/sys/kernel/sched_time_avg_ms entry is not used anywhere,
remove it.

Signed-off-by: Vincent Guittot <vincent.guittot@...aro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Luis R. Rodriguez <mcgrof@...nel.org>
Cc: Kees Cook <keescook@...omium.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Morten.Rasmussen@....com
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: claudio@...dence.eu.com
Cc: daniel.lezcano@...aro.org
Cc: dietmar.eggemann@....com
Cc: joel@...lfernandes.org
Cc: juri.lelli@...hat.com
Cc: luca.abeni@...tannapisa.it
Cc: patrick.bellasi@....com
Cc: quentin.perret@....com
Cc: rjw@...ysocki.net
Cc: valentin.schneider@....com
Cc: viresh.kumar@...aro.org
Link: http://lkml.kernel.org/r/1530200714-4504-12-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 include/linux/sched/sysctl.h | 1 -
 kernel/sched/core.c          | 8 --------
 kernel/sched/sched.h         | 1 -
 kernel/sysctl.c              | 8 --------
 4 files changed, 18 deletions(-)

diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index 1c1a1512ec55..913488d828cb 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -40,7 +40,6 @@ extern unsigned int sysctl_numa_balancing_scan_size;
 #ifdef CONFIG_SCHED_DEBUG
 extern __read_mostly unsigned int sysctl_sched_migration_cost;
 extern __read_mostly unsigned int sysctl_sched_nr_migrate;
-extern __read_mostly unsigned int sysctl_sched_time_avg;
 
 int sched_proc_update_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *length,
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a691b07390ab..ba6bb805693a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -46,14 +46,6 @@ const_debug unsigned int sysctl_sched_features =
  */
 const_debug unsigned int sysctl_sched_nr_migrate = 32;
 
-/*
- * period over which we average the RT time consumption, measured
- * in ms.
- *
- * default: 1s
- */
-const_debug unsigned int sysctl_sched_time_avg = MSEC_PER_SEC;
-
 /*
  * period over which we measure -rt task CPU usage in us.
  * default: 1s
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 14aac2d2de80..ebb4b3c3ece7 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1713,7 +1713,6 @@ extern void deactivate_task(struct rq *rq, struct task_struct *p, int flags);
 
 extern void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags);
 
-extern const_debug unsigned int sysctl_sched_time_avg;
 extern const_debug unsigned int sysctl_sched_nr_migrate;
 extern const_debug unsigned int sysctl_sched_migration_cost;
 
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 2d9837c0aff4..f22f76b7a138 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -368,14 +368,6 @@ static struct ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
-	{
-		.procname	= "sched_time_avg_ms",
-		.data		= &sysctl_sched_time_avg,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &one,
-	},
 #ifdef CONFIG_SCHEDSTATS
 	{
 		.procname	= "sched_schedstats",