Commit c8eaf6ac authored by Zhen Ni's avatar Zhen Ni Committed by Peter Zijlstra
Browse files

sched: move autogroup sysctls into its own file 



move autogroup sysctls to autogroup.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 avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220128095025.8745-1-nizhen@uniontech.com
parent 127b6429

include/linux/sched/sysctl.h

+0 −4
Original line number Diff line number Diff line
@@ -45,10 +45,6 @@ extern unsigned int sysctl_sched_uclamp_util_min_rt_default; 
extern unsigned int sysctl_sched_cfs_bandwidth_slice;

#endif



#ifdef CONFIG_SCHED_AUTOGROUP

extern unsigned int sysctl_sched_autogroup_enabled;

#endif



extern int sysctl_sched_rr_timeslice;

extern int sched_rr_timeslice;

kernel/sched/autogroup.c

+23 −0
Original line number Diff line number Diff line
@@ -9,6 +9,28 @@ unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1; 
static struct autogroup autogroup_default;

static atomic_t autogroup_seq_nr;



#ifdef CONFIG_SYSCTL

static struct ctl_table sched_autogroup_sysctls[] = {

	{

		.procname       = "sched_autogroup_enabled",

		.data           = &sysctl_sched_autogroup_enabled,

		.maxlen         = sizeof(unsigned int),

		.mode           = 0644,

		.proc_handler   = proc_dointvec_minmax,

		.extra1         = SYSCTL_ZERO,

		.extra2         = SYSCTL_ONE,

	},

	{}

};



static void __init sched_autogroup_sysctl_init(void)

{

	register_sysctl_init("kernel", sched_autogroup_sysctls);

}

#else

#define sched_autogroup_sysctl_init() do { } while (0)

#endif



void __init autogroup_init(struct task_struct *init_task)

{

	autogroup_default.tg = &root_task_group;
@@ -198,6 +220,7 @@ void sched_autogroup_exit(struct signal_struct *sig) 
static int __init setup_autogroup(char *str)

{

	sysctl_sched_autogroup_enabled = 0;

	sched_autogroup_sysctl_init();



	return 1;

}

kernel/sched/autogroup.h

+1 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ extern bool task_wants_autogroup(struct task_struct *p, struct task_group *tg); 
static inline struct task_group *

autogroup_task_group(struct task_struct *p, struct task_group *tg)

{

	extern unsigned int sysctl_sched_autogroup_enabled;

	int enabled = READ_ONCE(sysctl_sched_autogroup_enabled);



	if (enabled && task_wants_autogroup(p, tg))

kernel/sysctl.c

+0 −11
Original line number Diff line number Diff line
@@ -1750,17 +1750,6 @@ static struct ctl_table kern_table[] = { 
		.proc_handler	= sysctl_sched_uclamp_handler,

	},

#endif

#ifdef CONFIG_SCHED_AUTOGROUP

	{

		.procname	= "sched_autogroup_enabled",

		.data		= &sysctl_sched_autogroup_enabled,

		.maxlen		= sizeof(unsigned int),

		.mode		= 0644,

		.proc_handler	= proc_dointvec_minmax,

		.extra1		= SYSCTL_ZERO,

		.extra2		= SYSCTL_ONE,

	},

#endif

#ifdef CONFIG_CFS_BANDWIDTH

	{

		.procname	= "sched_cfs_bandwidth_slice_us",