linux-kernel - [PATCH v3 06/10] scheduler: Remove the now superfluous sentinel elements from ctl

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Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-6-285d273912fe@samsung.com>
Date: Thu, 28 Mar 2024 16:44:07 +0100
From: Joel Granados via B4 Relay <devnull+j.granados.samsung.com@...nel.org>
To: Luis Chamberlain <mcgrof@...nel.org>, josh@...htriplett.org, 
 Kees Cook <keescook@...omium.org>, Eric Biederman <ebiederm@...ssion.com>, 
 Iurii Zaikin <yzaikin@...gle.com>, Steven Rostedt <rostedt@...dmis.org>, 
 Masami Hiramatsu <mhiramat@...nel.org>, Mark Rutland <mark.rutland@....com>, 
 Thomas Gleixner <tglx@...utronix.de>, John Stultz <jstultz@...gle.com>, 
 Stephen Boyd <sboyd@...nel.org>, Andy Lutomirski <luto@...capital.net>, 
 Will Drewry <wad@...omium.org>, Ingo Molnar <mingo@...hat.com>, 
 Peter Zijlstra <peterz@...radead.org>, Juri Lelli <juri.lelli@...hat.com>, 
 Vincent Guittot <vincent.guittot@...aro.org>, 
 Dietmar Eggemann <dietmar.eggemann@....com>, 
 Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>, 
 Daniel Bristot de Oliveira <bristot@...hat.com>, 
 Valentin Schneider <vschneid@...hat.com>, Petr Mladek <pmladek@...e.com>, 
 John Ogness <john.ogness@...utronix.de>, 
 Sergey Senozhatsky <senozhatsky@...omium.org>, 
 "Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>, 
 Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>, 
 "David S. Miller" <davem@...emloft.net>, 
 Balbir Singh <bsingharora@...il.com>, Alexei Starovoitov <ast@...nel.org>, 
 Daniel Borkmann <daniel@...earbox.net>, 
 John Fastabend <john.fastabend@...il.com>, 
 Andrii Nakryiko <andrii@...nel.org>, 
 Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>, 
 Yonghong Song <yonghong.song@...ux.dev>, KP Singh <kpsingh@...nel.org>, 
 Stanislav Fomichev <sdf@...gle.com>, Hao Luo <haoluo@...gle.com>, 
 Jiri Olsa <jolsa@...nel.org>
Cc: linux-kernel@...r.kernel.org, kexec@...ts.infradead.org, 
 linux-fsdevel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
 bpf@...r.kernel.org, Joel Granados <j.granados@...sung.com>
Subject: [PATCH v3 06/10] scheduler: Remove the now superfluous sentinel
 elements from ctl_table array

From: Joel Granados <j.granados@...sung.com>

This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/)

rm sentinel element from ctl_table arrays

Acked-by: "Peter Zijlstra (Intel)" <peterz@...radead.org>
Signed-off-by: Joel Granados <j.granados@...sung.com>
---
 kernel/sched/autogroup.c | 1 -
 kernel/sched/core.c      | 1 -
 kernel/sched/deadline.c  | 1 -
 kernel/sched/fair.c      | 1 -
 kernel/sched/rt.c        | 1 -
 kernel/sched/topology.c  | 1 -
 6 files changed, 6 deletions(-)

diff --git a/kernel/sched/autogroup.c b/kernel/sched/autogroup.c
index 991fc9002535..db68a964e34e 100644
--- a/kernel/sched/autogroup.c
+++ b/kernel/sched/autogroup.c
@@ -19,7 +19,6 @@ static struct ctl_table sched_autogroup_sysctls[] = {
 		.extra1         = SYSCTL_ZERO,
 		.extra2         = SYSCTL_ONE,
 	},
-	{}
 };

 static void __init sched_autogroup_sysctl_init(void)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 7019a40457a6..7ce76620a308 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4741,7 +4741,6 @@ static struct ctl_table sched_core_sysctls[] = {
 		.extra2		= SYSCTL_FOUR,
 	},
 #endif /* CONFIG_NUMA_BALANCING */
-	{}
 };
 static int __init sched_core_sysctl_init(void)
 {
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index a04a436af8cc..c75d1307d86d 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -43,7 +43,6 @@ static struct ctl_table sched_dl_sysctls[] = {
 		.proc_handler   = proc_douintvec_minmax,
 		.extra2         = (void *)&sysctl_sched_dl_period_max,
 	},
-	{}
 };

 static int __init sched_dl_sysctl_init(void)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 03be0d1330a6..4ac2cf7a918e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -157,7 +157,6 @@ static struct ctl_table sched_fair_sysctls[] = {
 		.extra1		= SYSCTL_ZERO,
 	},
 #endif /* CONFIG_NUMA_BALANCING */
-	{}
 };

 static int __init sched_fair_sysctl_init(void)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 3261b067b67e..aa4c1c874fa4 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -56,7 +56,6 @@ static struct ctl_table sched_rt_sysctls[] = {
 		.mode           = 0644,
 		.proc_handler   = sched_rr_handler,
 	},
-	{}
 };

 static int __init sched_rt_sysctl_init(void)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 99ea5986038c..42c22648d124 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -322,7 +322,6 @@ static struct ctl_table sched_energy_aware_sysctls[] = {
 		.extra1         = SYSCTL_ZERO,
 		.extra2         = SYSCTL_ONE,
 	},
-	{}
 };

 static int __init sched_energy_aware_sysctl_init(void)

-- 
2.43.0