42 строки
1.0 KiB
C
42 строки
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_SCHED_STAT_H
|
|
#define _LINUX_SCHED_STAT_H
|
|
|
|
#include <linux/percpu.h>
|
|
|
|
/*
|
|
* Various counters maintained by the scheduler and fork(),
|
|
* exposed via /proc, sys.c or used by drivers via these APIs.
|
|
*
|
|
* ( Note that all these values are aquired without locking,
|
|
* so they can only be relied on in narrow circumstances. )
|
|
*/
|
|
|
|
extern unsigned long total_forks;
|
|
extern int nr_threads;
|
|
DECLARE_PER_CPU(unsigned long, process_counts);
|
|
extern int nr_processes(void);
|
|
extern unsigned long nr_running(void);
|
|
extern bool single_task_running(void);
|
|
extern unsigned long nr_iowait(void);
|
|
extern unsigned long nr_iowait_cpu(int cpu);
|
|
extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
|
|
|
|
static inline int sched_info_on(void)
|
|
{
|
|
#ifdef CONFIG_SCHEDSTATS
|
|
return 1;
|
|
#elif defined(CONFIG_TASK_DELAY_ACCT)
|
|
extern int delayacct_on;
|
|
return delayacct_on;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_SCHEDSTATS
|
|
void force_schedstat_enabled(void);
|
|
#endif
|
|
|
|
#endif /* _LINUX_SCHED_STAT_H */
|