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Date: Thu, 8 Sep 2022 20:07:14 +0800
From: Kefeng Wang <wangkefeng.wang@...wei.com>
To: Luis Chamberlain <mcgrof@...nel.org>,
Ingo Molnar <mingo@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Juri Lelli <juri.lelli@...hat.com>,
Vincent Guittot <vincent.guittot@...aro.org>
CC: Kees Cook <keescook@...omium.org>,
Iurii Zaikin <yzaikin@...gle.com>,
<linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH Resend] sched: Move numa_balancing sysctls to its own file
The sysctl_numa_balancing_promote_rate_limit and sysctl_numa_balancing
are part of sched, move them to its own file.
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
Resend: drop ctl_table in sysctl.h too.
include/linux/sched/sysctl.h | 6 ------
kernel/sched/core.c | 13 ++++++++++++-
kernel/sched/fair.c | 18 +++++++++++++++---
kernel/sysctl.c | 19 -------------------
4 files changed, 27 insertions(+), 29 deletions(-)
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index 303ee7dd0c7e..5a64582b086b 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -4,8 +4,6 @@
#include <linux/types.h>
-struct ctl_table;
-
#ifdef CONFIG_DETECT_HUNG_TASK
/* used for hung_task and block/ */
extern unsigned long sysctl_hung_task_timeout_secs;
@@ -27,12 +25,8 @@ enum sched_tunable_scaling {
#ifdef CONFIG_NUMA_BALANCING
extern int sysctl_numa_balancing_mode;
-extern unsigned int sysctl_numa_balancing_promote_rate_limit;
#else
#define sysctl_numa_balancing_mode 0
#endif
-int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer,
- size_t *lenp, loff_t *ppos);
-
#endif /* _LINUX_SCHED_SYSCTL_H */
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b60422300af6..677225b71538 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4407,7 +4407,7 @@ static void reset_memory_tiering(void)
}
}
-int sysctl_numa_balancing(struct ctl_table *table, int write,
+static int sysctl_numa_balancing(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table t;
@@ -4534,6 +4534,17 @@ static struct ctl_table sched_core_sysctls[] = {
.proc_handler = sysctl_sched_uclamp_handler,
},
#endif /* CONFIG_UCLAMP_TASK */
+#ifdef CONFIG_NUMA_BALANCING
+ {
+ .procname = "numa_balancing",
+ .data = NULL, /* filled in by handler */
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sysctl_numa_balancing,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_FOUR,
+ },
+#endif /* CONFIG_NUMA_BALANCING */
{}
};
static int __init sched_core_sysctl_init(void)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index cf3300b1a1d2..ff37620bdfbe 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -178,6 +178,11 @@ int __weak arch_asym_cpu_priority(int cpu)
static unsigned int sysctl_sched_cfs_bandwidth_slice = 5000UL;
#endif
+#ifdef CONFIG_NUMA_BALANCING
+/* Restrict the NUMA promotion throughput (MB/s) for each target node. */
+static unsigned int sysctl_numa_balancing_promote_rate_limit = 65536;
+#endif
+
#ifdef CONFIG_SYSCTL
static struct ctl_table sched_fair_sysctls[] = {
{
@@ -197,6 +202,16 @@ static struct ctl_table sched_fair_sysctls[] = {
.extra1 = SYSCTL_ONE,
},
#endif
+#ifdef CONFIG_NUMA_BALANCING
+ {
+ .procname = "numa_balancing_promote_rate_limit_MBps",
+ .data = &sysctl_numa_balancing_promote_rate_limit,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ },
+#endif /* CONFIG_NUMA_BALANCING */
{}
};
@@ -1094,9 +1109,6 @@ unsigned int sysctl_numa_balancing_scan_delay = 1000;
/* The page with hint page fault latency < threshold in ms is considered hot */
unsigned int sysctl_numa_balancing_hot_threshold = MSEC_PER_SEC;
-/* Restrict the NUMA promotion throughput (MB/s) for each target node. */
-unsigned int sysctl_numa_balancing_promote_rate_limit = 65536;
-
struct numa_group {
refcount_t refcount;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index f10a610aa834..2ea3bf603b89 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1631,25 +1631,6 @@ int proc_do_static_key(struct ctl_table *table, int write,
}
static struct ctl_table kern_table[] = {
-#ifdef CONFIG_NUMA_BALANCING
- {
- .procname = "numa_balancing",
- .data = NULL, /* filled in by handler */
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = sysctl_numa_balancing,
- .extra1 = SYSCTL_ZERO,
- .extra2 = SYSCTL_FOUR,
- },
- {
- .procname = "numa_balancing_promote_rate_limit_MBps",
- .data = &sysctl_numa_balancing_promote_rate_limit,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = SYSCTL_ZERO,
- },
-#endif /* CONFIG_NUMA_BALANCING */
{
.procname = "panic",
.data = &panic_timeout,
--
2.35.3
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