Commit 84227c12 authored by Zhen Ni's avatar Zhen Ni Committed by Luis Chamberlain
Browse files

sched: Move deadline_period sysctls to deadline.c 



move deadline_period sysctls to deadline.c and use the new
register_sysctl_init() to register the sysctl interface.

Signed-off-by: default avatarZhen Ni <nizhen@uniontech.com>
Signed-off-by: default avatarLuis Chamberlain <mcgrof@kernel.org>
parent d9ab0e63

include/linux/sched/sysctl.h

+0 −3
Original line number Diff line number Diff line
@@ -31,9 +31,6 @@ extern int sysctl_numa_balancing_mode; 
#define sysctl_numa_balancing_mode	0

#endif



extern unsigned int sysctl_sched_dl_period_max;

extern unsigned int sysctl_sched_dl_period_min;



#ifdef CONFIG_UCLAMP_TASK

extern unsigned int sysctl_sched_uclamp_util_min;

extern unsigned int sysctl_sched_uclamp_util_max;

kernel/sched/deadline.c

+34 −8
Original line number Diff line number Diff line
@@ -16,6 +16,40 @@ 
 *                    Fabio Checconi <fchecconi@gmail.com>

 */



/*

 * Default limits for DL period; on the top end we guard against small util

 * tasks still getting ridiculously long effective runtimes, on the bottom end we

 * guard against timer DoS.

 */

static unsigned int sysctl_sched_dl_period_max = 1 << 22; /* ~4 seconds */

static unsigned int sysctl_sched_dl_period_min = 100;     /* 100 us */

#ifdef CONFIG_SYSCTL

static struct ctl_table sched_dl_sysctls[] = {

	{

		.procname       = "sched_deadline_period_max_us",

		.data           = &sysctl_sched_dl_period_max,

		.maxlen         = sizeof(unsigned int),

		.mode           = 0644,

		.proc_handler   = proc_dointvec,

	},

	{

		.procname       = "sched_deadline_period_min_us",

		.data           = &sysctl_sched_dl_period_min,

		.maxlen         = sizeof(unsigned int),

		.mode           = 0644,

		.proc_handler   = proc_dointvec,

	},

	{}

};



static int __init sched_dl_sysctl_init(void)

{

	register_sysctl_init("kernel", sched_dl_sysctls);

	return 0;

}

late_initcall(sched_dl_sysctl_init);

#endif



static inline struct task_struct *dl_task_of(struct sched_dl_entity *dl_se)

{

	return container_of(dl_se, struct task_struct, dl);
@@ -2879,14 +2913,6 @@ void __getparam_dl(struct task_struct *p, struct sched_attr *attr) 
	attr->sched_flags |= dl_se->flags;

}



/*

 * Default limits for DL period; on the top end we guard against small util

 * tasks still getting ridiculously long effective runtimes, on the bottom end we

 * guard against timer DoS.

 */

unsigned int sysctl_sched_dl_period_max = 1 << 22; /* ~4 seconds */

unsigned int sysctl_sched_dl_period_min = 100;     /* 100 us */



/*

 * This function validates the new parameters of a -deadline task.

 * We ask for the deadline not being zero, and greater or equal

kernel/sysctl.c

+0 −14
Original line number Diff line number Diff line
@@ -1681,20 +1681,6 @@ static struct ctl_table kern_table[] = { 
		.extra2		= SYSCTL_FOUR,

	},

#endif /* CONFIG_NUMA_BALANCING */

	{

		.procname	= "sched_deadline_period_max_us",

		.data		= &sysctl_sched_dl_period_max,

		.maxlen		= sizeof(unsigned int),

		.mode		= 0644,

		.proc_handler	= proc_dointvec,

	},

	{

		.procname	= "sched_deadline_period_min_us",

		.data		= &sysctl_sched_dl_period_min,

		.maxlen		= sizeof(unsigned int),

		.mode		= 0644,

		.proc_handler	= proc_dointvec,

	},

	{

		.procname	= "sched_rr_timeslice_ms",

		.data		= &sysctl_sched_rr_timeslice,