Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_SCHED_SYSCTL_H
3#define _LINUX_SCHED_SYSCTL_H
4
5#include <linux/types.h>
6
7struct ctl_table;
8
9#ifdef CONFIG_DETECT_HUNG_TASK
10
11#ifdef CONFIG_SMP
12extern unsigned int sysctl_hung_task_all_cpu_backtrace;
13#else
14#define sysctl_hung_task_all_cpu_backtrace 0
15#endif /* CONFIG_SMP */
16
17extern int sysctl_hung_task_check_count;
18extern unsigned int sysctl_hung_task_panic;
19extern unsigned long sysctl_hung_task_timeout_secs;
20extern unsigned long sysctl_hung_task_check_interval_secs;
21extern int sysctl_hung_task_warnings;
22int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
23 void *buffer, size_t *lenp, loff_t *ppos);
24#else
25/* Avoid need for ifdefs elsewhere in the code */
26enum { sysctl_hung_task_timeout_secs = 0 };
27#endif
28
29extern unsigned int sysctl_sched_child_runs_first;
30
31enum sched_tunable_scaling {
32 SCHED_TUNABLESCALING_NONE,
33 SCHED_TUNABLESCALING_LOG,
34 SCHED_TUNABLESCALING_LINEAR,
35 SCHED_TUNABLESCALING_END,
36};
37
38/*
39 * control realtime throttling:
40 *
41 * /proc/sys/kernel/sched_rt_period_us
42 * /proc/sys/kernel/sched_rt_runtime_us
43 */
44extern unsigned int sysctl_sched_rt_period;
45extern int sysctl_sched_rt_runtime;
46
47extern unsigned int sysctl_sched_dl_period_max;
48extern unsigned int sysctl_sched_dl_period_min;
49
50#ifdef CONFIG_UCLAMP_TASK
51extern unsigned int sysctl_sched_uclamp_util_min;
52extern unsigned int sysctl_sched_uclamp_util_max;
53extern unsigned int sysctl_sched_uclamp_util_min_rt_default;
54#endif
55
56#ifdef CONFIG_CFS_BANDWIDTH
57extern unsigned int sysctl_sched_cfs_bandwidth_slice;
58#endif
59
60#ifdef CONFIG_SCHED_AUTOGROUP
61extern unsigned int sysctl_sched_autogroup_enabled;
62#endif
63
64extern int sysctl_sched_rr_timeslice;
65extern int sched_rr_timeslice;
66
67int sched_rr_handler(struct ctl_table *table, int write, void *buffer,
68 size_t *lenp, loff_t *ppos);
69int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
70 size_t *lenp, loff_t *ppos);
71int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
72 void *buffer, size_t *lenp, loff_t *ppos);
73int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer,
74 size_t *lenp, loff_t *ppos);
75int sysctl_schedstats(struct ctl_table *table, int write, void *buffer,
76 size_t *lenp, loff_t *ppos);
77
78#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
79extern unsigned int sysctl_sched_energy_aware;
80int sched_energy_aware_handler(struct ctl_table *table, int write,
81 void *buffer, size_t *lenp, loff_t *ppos);
82#endif
83
84#endif /* _LINUX_SCHED_SYSCTL_H */