sched: Move sched.h sysctl bits into separate header
Move the sysctl-related bits from include/linux/sched.h into a new file: include/linux/sched/sysctl.h. Then update source files requiring access to those bits by including the new header file. Signed-off-by: Clark Williams <williams@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20130207094659.06dced96@riff.lan Signed-off-by: Ingo Molnar <mingo@kernel.org>
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b2c77a57e4
Коммит
cf4aebc292
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@ -5,6 +5,7 @@
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#include <linux/module.h>
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#include <linux/bio.h>
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#include <linux/blkdev.h>
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#include <linux/sched/sysctl.h>
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#include "blk.h"
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@ -304,19 +304,6 @@ static inline void lockup_detector_init(void)
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}
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#endif
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#ifdef CONFIG_DETECT_HUNG_TASK
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extern unsigned int sysctl_hung_task_panic;
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extern unsigned long sysctl_hung_task_check_count;
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extern unsigned long sysctl_hung_task_timeout_secs;
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extern unsigned long sysctl_hung_task_warnings;
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extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
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void __user *buffer,
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size_t *lenp, loff_t *ppos);
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#else
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/* Avoid need for ifdefs elsewhere in the code */
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enum { sysctl_hung_task_timeout_secs = 0 };
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#endif
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/* Attach to any functions which should be ignored in wchan output. */
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#define __sched __attribute__((__section__(".sched.text")))
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@ -338,23 +325,6 @@ extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner);
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struct nsproxy;
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struct user_namespace;
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/*
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* Default maximum number of active map areas, this limits the number of vmas
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* per mm struct. Users can overwrite this number by sysctl but there is a
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* problem.
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*
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* When a program's coredump is generated as ELF format, a section is created
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* per a vma. In ELF, the number of sections is represented in unsigned short.
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* This means the number of sections should be smaller than 65535 at coredump.
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* Because the kernel adds some informative sections to a image of program at
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* generating coredump, we need some margin. The number of extra sections is
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* 1-3 now and depends on arch. We use "5" as safe margin, here.
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*/
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#define MAPCOUNT_ELF_CORE_MARGIN (5)
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#define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
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extern int sysctl_max_map_count;
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#include <linux/aio.h>
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#ifdef CONFIG_MMU
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@ -1221,12 +1191,6 @@ struct sched_rt_entity {
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#endif
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};
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/*
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* default timeslice is 100 msecs (used only for SCHED_RR tasks).
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* Timeslices get refilled after they expire.
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*/
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#define RR_TIMESLICE (100 * HZ / 1000)
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struct rcu_node;
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enum perf_event_task_context {
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@ -2074,58 +2038,7 @@ extern void wake_up_idle_cpu(int cpu);
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static inline void wake_up_idle_cpu(int cpu) { }
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#endif
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extern unsigned int sysctl_sched_latency;
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extern unsigned int sysctl_sched_min_granularity;
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extern unsigned int sysctl_sched_wakeup_granularity;
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extern unsigned int sysctl_sched_child_runs_first;
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enum sched_tunable_scaling {
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SCHED_TUNABLESCALING_NONE,
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SCHED_TUNABLESCALING_LOG,
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SCHED_TUNABLESCALING_LINEAR,
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SCHED_TUNABLESCALING_END,
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};
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extern enum sched_tunable_scaling sysctl_sched_tunable_scaling;
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extern unsigned int sysctl_numa_balancing_scan_delay;
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extern unsigned int sysctl_numa_balancing_scan_period_min;
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extern unsigned int sysctl_numa_balancing_scan_period_max;
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extern unsigned int sysctl_numa_balancing_scan_period_reset;
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extern unsigned int sysctl_numa_balancing_scan_size;
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extern unsigned int sysctl_numa_balancing_settle_count;
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#ifdef CONFIG_SCHED_DEBUG
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extern unsigned int sysctl_sched_migration_cost;
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extern unsigned int sysctl_sched_nr_migrate;
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extern unsigned int sysctl_sched_time_avg;
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extern unsigned int sysctl_timer_migration;
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extern unsigned int sysctl_sched_shares_window;
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int sched_proc_update_handler(struct ctl_table *table, int write,
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void __user *buffer, size_t *length,
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loff_t *ppos);
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#endif
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#ifdef CONFIG_SCHED_DEBUG
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static inline unsigned int get_sysctl_timer_migration(void)
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{
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return sysctl_timer_migration;
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}
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#else
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static inline unsigned int get_sysctl_timer_migration(void)
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{
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return 1;
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}
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#endif
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extern unsigned int sysctl_sched_rt_period;
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extern int sysctl_sched_rt_runtime;
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int sched_rt_handler(struct ctl_table *table, int write,
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void __user *buffer, size_t *lenp,
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loff_t *ppos);
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#ifdef CONFIG_SCHED_AUTOGROUP
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extern unsigned int sysctl_sched_autogroup_enabled;
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extern void sched_autogroup_create_attach(struct task_struct *p);
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extern void sched_autogroup_detach(struct task_struct *p);
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extern void sched_autogroup_fork(struct signal_struct *sig);
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@ -2141,10 +2054,6 @@ static inline void sched_autogroup_fork(struct signal_struct *sig) { }
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static inline void sched_autogroup_exit(struct signal_struct *sig) { }
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#endif
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#ifdef CONFIG_CFS_BANDWIDTH
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extern unsigned int sysctl_sched_cfs_bandwidth_slice;
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#endif
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#ifdef CONFIG_RT_MUTEXES
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extern int rt_mutex_getprio(struct task_struct *p);
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extern void rt_mutex_setprio(struct task_struct *p, int prio);
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@ -0,0 +1,97 @@
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#ifndef _SCHED_SYSCTL_H
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#define _SCHED_SYSCTL_H
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#ifdef CONFIG_DETECT_HUNG_TASK
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extern unsigned int sysctl_hung_task_panic;
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extern unsigned long sysctl_hung_task_check_count;
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extern unsigned long sysctl_hung_task_timeout_secs;
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extern unsigned long sysctl_hung_task_warnings;
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extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
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void __user *buffer,
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size_t *lenp, loff_t *ppos);
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#else
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/* Avoid need for ifdefs elsewhere in the code */
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enum { sysctl_hung_task_timeout_secs = 0 };
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#endif
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/*
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* Default maximum number of active map areas, this limits the number of vmas
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* per mm struct. Users can overwrite this number by sysctl but there is a
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* problem.
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*
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* When a program's coredump is generated as ELF format, a section is created
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* per a vma. In ELF, the number of sections is represented in unsigned short.
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* This means the number of sections should be smaller than 65535 at coredump.
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* Because the kernel adds some informative sections to a image of program at
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* generating coredump, we need some margin. The number of extra sections is
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* 1-3 now and depends on arch. We use "5" as safe margin, here.
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*/
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#define MAPCOUNT_ELF_CORE_MARGIN (5)
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#define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
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extern int sysctl_max_map_count;
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extern unsigned int sysctl_sched_latency;
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extern unsigned int sysctl_sched_min_granularity;
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extern unsigned int sysctl_sched_wakeup_granularity;
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extern unsigned int sysctl_sched_child_runs_first;
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enum sched_tunable_scaling {
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SCHED_TUNABLESCALING_NONE,
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SCHED_TUNABLESCALING_LOG,
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SCHED_TUNABLESCALING_LINEAR,
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SCHED_TUNABLESCALING_END,
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};
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extern enum sched_tunable_scaling sysctl_sched_tunable_scaling;
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extern unsigned int sysctl_numa_balancing_scan_delay;
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extern unsigned int sysctl_numa_balancing_scan_period_min;
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extern unsigned int sysctl_numa_balancing_scan_period_max;
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extern unsigned int sysctl_numa_balancing_scan_period_reset;
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extern unsigned int sysctl_numa_balancing_scan_size;
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extern unsigned int sysctl_numa_balancing_settle_count;
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#ifdef CONFIG_SCHED_DEBUG
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extern unsigned int sysctl_sched_migration_cost;
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extern unsigned int sysctl_sched_nr_migrate;
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extern unsigned int sysctl_sched_time_avg;
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extern unsigned int sysctl_timer_migration;
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extern unsigned int sysctl_sched_shares_window;
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int sched_proc_update_handler(struct ctl_table *table, int write,
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void __user *buffer, size_t *length,
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loff_t *ppos);
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#endif
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#ifdef CONFIG_SCHED_DEBUG
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static inline unsigned int get_sysctl_timer_migration(void)
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{
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return sysctl_timer_migration;
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}
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#else
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static inline unsigned int get_sysctl_timer_migration(void)
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{
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return 1;
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}
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#endif
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extern unsigned int sysctl_sched_rt_period;
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extern int sysctl_sched_rt_runtime;
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#ifdef CONFIG_CFS_BANDWIDTH
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extern unsigned int sysctl_sched_cfs_bandwidth_slice;
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#endif
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#ifdef CONFIG_SCHED_AUTOGROUP
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extern unsigned int sysctl_sched_autogroup_enabled;
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#endif
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/*
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* default timeslice is 100 msecs (used only for SCHED_RR tasks).
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* Timeslices get refilled after they expire.
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*/
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#define RR_TIMESLICE (100 * HZ / 1000)
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int sched_rt_handler(struct ctl_table *table, int write,
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void __user *buffer, size_t *lenp,
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loff_t *ppos);
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#endif /* _SCHED_SYSCTL_H */
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@ -2,6 +2,7 @@
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#include <linux/export.h>
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#include <linux/mqueue.h>
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#include <linux/sched.h>
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#include <linux/sched/sysctl.h>
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#include <linux/init.h>
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#include <linux/fs.h>
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#include <linux/mm.h>
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@ -44,6 +44,7 @@
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#include <linux/err.h>
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#include <linux/debugobjects.h>
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#include <linux/sched.h>
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#include <linux/sched/sysctl.h>
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#include <linux/timer.h>
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#include <asm/uaccess.h>
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@ -1,5 +1,6 @@
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#include <linux/sched.h>
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#include <linux/sched/sysctl.h>
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#include <linux/mutex.h>
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#include <linux/spinlock.h>
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#include <linux/stop_machine.h>
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@ -61,6 +61,7 @@
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#include <linux/kmod.h>
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#include <linux/capability.h>
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#include <linux/binfmts.h>
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#include <linux/sched/sysctl.h>
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#include <asm/uaccess.h>
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#include <asm/processor.h>
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@ -39,6 +39,7 @@
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#include <linux/kallsyms.h>
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#include <linux/irq_work.h>
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#include <linux/sched.h>
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#include <linux/sched/sysctl.h>
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#include <linux/slab.h>
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#include <asm/uaccess.h>
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@ -32,6 +32,7 @@
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#include <linux/khugepaged.h>
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#include <linux/uprobes.h>
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#include <linux/rbtree_augmented.h>
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#include <linux/sched/sysctl.h>
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#include <asm/uaccess.h>
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#include <asm/cacheflush.h>
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@ -19,6 +19,7 @@
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#include <linux/security.h>
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#include <linux/syscalls.h>
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#include <linux/mmu_notifier.h>
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#include <linux/sched/sysctl.h>
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#include <asm/uaccess.h>
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#include <asm/cacheflush.h>
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@ -29,6 +29,7 @@
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#include <linux/security.h>
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#include <linux/syscalls.h>
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#include <linux/audit.h>
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#include <linux/sched/sysctl.h>
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#include <asm/uaccess.h>
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#include <asm/tlb.h>
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