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sched: move autogroup sysctls into its own file

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

Signed-off-by: Zhen Ni <nizhen@uniontech.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220128095025.8745-1-nizhen@uniontech.com
This commit is contained in:
Zhen Ni 2022-01-28 17:50:25 +08:00 committed by Peter Zijlstra
parent 127b6429d2
commit c8eaf6ac76
4 changed files with 24 additions and 15 deletions
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4
include/linux/sched/sysctl.h
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@ -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;

23
kernel/sched/autogroup.c
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@ -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;
}

1
kernel/sched/autogroup.h
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@ -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))

11
kernel/sysctl.c
View File

@ -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",