LXR linux/include/linux/sched/stat.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_SCHED_STAT_H
   3#define _LINUX_SCHED_STAT_H
   4
   5#include <linux/percpu.h>
   6#include <linux/kconfig.h>
   7
   8/*
   9 * Various counters maintained by the scheduler and fork(),
  10 * exposed via /proc, sys.c or used by drivers via these APIs.
  11 *
  12 * ( Note that all these values are acquired without locking,
  13 *   so they can only be relied on in narrow circumstances. )
  14 */
  15
  16extern unsigned long total_forks;
  17extern int nr_threads;
  18DECLARE_PER_CPU(unsigned long, process_counts);
  19extern int nr_processes(void);
  20extern unsigned int nr_running(void);
  21extern bool single_task_running(void);
  22extern unsigned int nr_iowait(void);
  23extern unsigned int nr_iowait_cpu(int cpu);
  24
  25static inline int sched_info_on(void)
  26{
  27        return IS_ENABLED(CONFIG_SCHED_INFO);
  28}
  29
  30#ifdef CONFIG_SCHEDSTATS
  31void force_schedstat_enabled(void);
  32#endif
  33
  34#endif /* _LINUX_SCHED_STAT_H */
  35