Commit 0dff89c4 authored by Kefeng Wang's avatar Kefeng Wang Committed by Luis Chamberlain
Browse files

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: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: default avatarLuis Chamberlain <mcgrof@kernel.org>
parent 81e7cfa3

include/linux/sched/sysctl.h

+0 −6
Original line number Diff line number Diff line
@@ -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 */

kernel/sched/core.c

+12 −1
Original line number Diff line number Diff line
@@ -4401,7 +4401,7 @@ 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;
@@ -4528,6 +4528,17 @@ 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)

kernel/sched/fair.c

+15 −3
Original line number Diff line number Diff line
@@ -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;

kernel/sysctl.c

+0 −19
Original line number Diff line number Diff line
@@ -1633,25 +1633,6 @@ 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,