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sched: Move uclamp_util sysctls to core.c

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move uclamp_util sysctls to core.c and use the new
register_sysctl_init() to register the sysctl interface.

Signed-off-by: Zhen Ni <nizhen@uniontech.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
This commit is contained in:
Zhen Ni 2022-02-15 19:46:02 +08:00 committed by Luis Chamberlain
parent 28f152cd09
commit 3267e0156c
3 changed files with 37 additions and 42 deletions
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8
include/linux/sched/sysctl.h
View File

@ -31,18 +31,10 @@ extern int sysctl_numa_balancing_mode;
#define sysctl_numa_balancing_mode 0
#endif
#ifdef CONFIG_UCLAMP_TASK
extern unsigned int sysctl_sched_uclamp_util_min;
extern unsigned int sysctl_sched_uclamp_util_max;
extern unsigned int sysctl_sched_uclamp_util_min_rt_default;
#endif
#ifdef CONFIG_CFS_BANDWIDTH
extern unsigned int sysctl_sched_cfs_bandwidth_slice;
#endif
int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos);
int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer,
size_t *lenp, loff_t *ppos);

48
kernel/sched/core.c
View File

@ -1306,10 +1306,10 @@ static void set_load_weight(struct task_struct *p, bool update_load)
static DEFINE_MUTEX(uclamp_mutex);
/* Max allowed minimum utilization */
unsigned int sysctl_sched_uclamp_util_min = SCHED_CAPACITY_SCALE;
static unsigned int sysctl_sched_uclamp_util_min = SCHED_CAPACITY_SCALE;
/* Max allowed maximum utilization */
unsigned int sysctl_sched_uclamp_util_max = SCHED_CAPACITY_SCALE;
static unsigned int sysctl_sched_uclamp_util_max = SCHED_CAPACITY_SCALE;
/*
* By default RT tasks run at the maximum performance point/capacity of the
@ -1326,7 +1326,7 @@ unsigned int sysctl_sched_uclamp_util_max = SCHED_CAPACITY_SCALE;
* This knob will not override the system default sched_util_clamp_min defined
* above.
*/
unsigned int sysctl_sched_uclamp_util_min_rt_default = SCHED_CAPACITY_SCALE;
static unsigned int sysctl_sched_uclamp_util_min_rt_default = SCHED_CAPACITY_SCALE;
/* All clamps are required to be less or equal than these values */
static struct uclamp_se uclamp_default[UCLAMP_CNT];
@ -1779,7 +1779,7 @@ static void uclamp_update_root_tg(void)
static void uclamp_update_root_tg(void) { }
#endif
int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
static int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)
{
bool update_root_tg = false;
@ -4436,8 +4436,12 @@ static int sysctl_schedstats(struct ctl_table *table, int write, void *buffer,
set_schedstats(state);
return err;
}
#endif /* CONFIG_PROC_SYSCTL */
#endif /* CONFIG_SCHEDSTATS */
static struct ctl_table sched_schedstats_sysctls[] = {
#ifdef CONFIG_SYSCTL
static struct ctl_table sched_core_sysctls[] = {
#ifdef CONFIG_SCHEDSTATS
{
.procname = "sched_schedstats",
.data = NULL,
@ -4447,17 +4451,39 @@ static struct ctl_table sched_schedstats_sysctls[] = {
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
#endif /* CONFIG_SCHEDSTATS */
#ifdef CONFIG_UCLAMP_TASK
{
.procname = "sched_util_clamp_min",
.data = &sysctl_sched_uclamp_util_min,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = sysctl_sched_uclamp_handler,
},
{
.procname = "sched_util_clamp_max",
.data = &sysctl_sched_uclamp_util_max,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = sysctl_sched_uclamp_handler,
},
{
.procname = "sched_util_clamp_min_rt_default",
.data = &sysctl_sched_uclamp_util_min_rt_default,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = sysctl_sched_uclamp_handler,
},
#endif /* CONFIG_UCLAMP_TASK */
{}
};
static int __init sched_schedstats_sysctl_init(void)
static int __init sched_core_sysctl_init(void)
{
register_sysctl_init("kernel", sched_schedstats_sysctls);
register_sysctl_init("kernel", sched_core_sysctls);
return 0;
}
late_initcall(sched_schedstats_sysctl_init);
#endif /* CONFIG_PROC_SYSCTL */
#endif /* CONFIG_SCHEDSTATS */
late_initcall(sched_core_sysctl_init);
#endif /* CONFIG_SYSCTL */
/*
* fork()/clone()-time setup:

23
kernel/sysctl.c
View File

@ -1681,29 +1681,6 @@ static struct ctl_table kern_table[] = {
.extra2 = SYSCTL_FOUR,
},
#endif /* CONFIG_NUMA_BALANCING */
#ifdef CONFIG_UCLAMP_TASK
{
.procname = "sched_util_clamp_min",
.data = &sysctl_sched_uclamp_util_min,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = sysctl_sched_uclamp_handler,
},
{
.procname = "sched_util_clamp_max",
.data = &sysctl_sched_uclamp_util_max,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = sysctl_sched_uclamp_handler,
},
{
.procname = "sched_util_clamp_min_rt_default",
.data = &sysctl_sched_uclamp_util_min_rt_default,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = sysctl_sched_uclamp_handler,
},
#endif
#ifdef CONFIG_CFS_BANDWIDTH
{
.procname = "sched_cfs_bandwidth_slice_us",