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Filename : stat.h

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_SCHED_STAT_H
#define _LINUX_SCHED_STAT_H

#include <linux/percpu.h>
#include <linux/kconfig.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 acquired 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 int nr_running(void);
extern bool single_task_running(void);
extern unsigned int nr_iowait(void);
extern unsigned int nr_iowait_cpu(int cpu);

static inline int sched_info_on(void)
{
	return IS_ENABLED(CONFIG_SCHED_INFO);
}

#ifdef CONFIG_SCHEDSTATS
void force_schedstat_enabled(void);
#endif

#endif /* _LINUX_SCHED_STAT_H */