projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cf4aebc2 CW |
1 | #ifndef _SCHED_SYSCTL_H |
| 2 | #define _SCHED_SYSCTL_H | |
| 3 | ||
| 4 | #ifdef CONFIG_DETECT_HUNG_TASK | |
| cd64647f | 5 | extern int sysctl_hung_task_check_count; |
| cf4aebc2 | 6 | extern unsigned int sysctl_hung_task_panic; |
| cf4aebc2 CW |
7 | extern unsigned long sysctl_hung_task_timeout_secs; |
| 8 | extern unsigned long sysctl_hung_task_warnings; | |
| 9 | extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write, | |
| 10 | void __user *buffer, | |
| 11 | size_t *lenp, loff_t *ppos); | |
| 12 | #else | |
| 13 | /* Avoid need for ifdefs elsewhere in the code */ | |
| 14 | enum { sysctl_hung_task_timeout_secs = 0 }; | |
| 15 | #endif | |
| 16 | ||
| 17 | /* | |
| 18 | * Default maximum number of active map areas, this limits the number of vmas | |
| 19 | * per mm struct. Users can overwrite this number by sysctl but there is a | |
| 20 | * problem. | |
| 21 | * | |
| 22 | * When a program's coredump is generated as ELF format, a section is created | |
| 23 | * per a vma. In ELF, the number of sections is represented in unsigned short. | |
| 24 | * This means the number of sections should be smaller than 65535 at coredump. | |
| 25 | * Because the kernel adds some informative sections to a image of program at | |
| 26 | * generating coredump, we need some margin. The number of extra sections is | |
| 27 | * 1-3 now and depends on arch. We use "5" as safe margin, here. | |
| 28 | */ | |
| 29 | #define MAPCOUNT_ELF_CORE_MARGIN (5) | |
| 30 | #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN) | |
| 31 | ||
| 32 | extern int sysctl_max_map_count; | |
| 33 | ||
| 34 | extern unsigned int sysctl_sched_latency; | |
| 35 | extern unsigned int sysctl_sched_min_granularity; | |
| 36 | extern unsigned int sysctl_sched_wakeup_granularity; | |
| 37 | extern unsigned int sysctl_sched_child_runs_first; | |
| 38 | ||
| 39 | enum sched_tunable_scaling { | |
| 40 | SCHED_TUNABLESCALING_NONE, | |
| 41 | SCHED_TUNABLESCALING_LOG, | |
| 42 | SCHED_TUNABLESCALING_LINEAR, | |
| 43 | SCHED_TUNABLESCALING_END, | |
| 44 | }; | |
| 45 | extern enum sched_tunable_scaling sysctl_sched_tunable_scaling; | |
| 46 | ||
| 47 | extern unsigned int sysctl_numa_balancing_scan_delay; | |
| 48 | extern unsigned int sysctl_numa_balancing_scan_period_min; | |
| 49 | extern unsigned int sysctl_numa_balancing_scan_period_max; | |
| cf4aebc2 | 50 | extern unsigned int sysctl_numa_balancing_scan_size; |
| cf4aebc2 CW |
51 | |
| 52 | #ifdef CONFIG_SCHED_DEBUG | |
| 53 | extern unsigned int sysctl_sched_migration_cost; | |
| 54 | extern unsigned int sysctl_sched_nr_migrate; | |
| 55 | extern unsigned int sysctl_sched_time_avg; | |
| 56 | extern unsigned int sysctl_timer_migration; | |
| 57 | extern unsigned int sysctl_sched_shares_window; | |
| 58 | ||
| 59 | int sched_proc_update_handler(struct ctl_table *table, int write, | |
| 60 | void __user *buffer, size_t *length, | |
| 61 | loff_t *ppos); | |
| 62 | #endif | |
| 63 | #ifdef CONFIG_SCHED_DEBUG | |
| 64 | static inline unsigned int get_sysctl_timer_migration(void) | |
| 65 | { | |
| 66 | return sysctl_timer_migration; | |
| 67 | } | |
| 68 | #else | |
| 69 | static inline unsigned int get_sysctl_timer_migration(void) | |
| 70 | { | |
| 71 | return 1; | |
| 72 | } | |
| 73 | #endif | |
| ce0dbbbb CW |
74 | |
| 75 | /* | |
| 76 | * control realtime throttling: | |
| 77 | * | |
| 78 | * /proc/sys/kernel/sched_rt_period_us | |
| 79 | * /proc/sys/kernel/sched_rt_runtime_us | |
| 80 | */ | |
| cf4aebc2 CW |
81 | extern unsigned int sysctl_sched_rt_period; |
| 82 | extern int sysctl_sched_rt_runtime; | |
| 83 | ||
| 84 | #ifdef CONFIG_CFS_BANDWIDTH | |
| 85 | extern unsigned int sysctl_sched_cfs_bandwidth_slice; | |
| 86 | #endif | |
| 87 | ||
| 88 | #ifdef CONFIG_SCHED_AUTOGROUP | |
| 89 | extern unsigned int sysctl_sched_autogroup_enabled; | |
| 90 | #endif | |
| 91 | ||
| ce0dbbbb CW |
92 | extern int sched_rr_timeslice; |
| 93 | ||
| 94 | extern int sched_rr_handler(struct ctl_table *table, int write, | |
| 95 | void __user *buffer, size_t *lenp, | |
| 96 | loff_t *ppos); | |
| 97 | ||
| 98 | extern int sched_rt_handler(struct ctl_table *table, int write, | |
| cf4aebc2 CW |
99 | void __user *buffer, size_t *lenp, |
| 100 | loff_t *ppos); | |
| 101 | ||
| 102 | #endif /* _SCHED_SYSCTL_H */ |