dc1995392d
The <linux/sched/stat.h> file is a largely self-contained header and users of it either don't need <linux/sched.h> - or have already included it. ( Keep the <linux/percpu.h> dependency.) This reduces the size of the header dependency graph. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
41 lines
1,007 B
C
41 lines
1,007 B
C
#ifndef _LINUX_SCHED_STAT_H
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#define _LINUX_SCHED_STAT_H
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#include <linux/percpu.h>
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/*
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* Various counters maintained by the scheduler and fork(),
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* exposed via /proc, sys.c or used by drivers via these APIs.
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*
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* ( Note that all these values are aquired without locking,
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* so they can only be relied on in narrow circumstances. )
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*/
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extern unsigned long total_forks;
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extern int nr_threads;
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DECLARE_PER_CPU(unsigned long, process_counts);
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extern int nr_processes(void);
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extern unsigned long nr_running(void);
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extern bool single_task_running(void);
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extern unsigned long nr_iowait(void);
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extern unsigned long nr_iowait_cpu(int cpu);
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extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
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static inline int sched_info_on(void)
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{
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#ifdef CONFIG_SCHEDSTATS
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return 1;
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#elif defined(CONFIG_TASK_DELAY_ACCT)
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extern int delayacct_on;
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return delayacct_on;
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#else
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return 0;
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#endif
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}
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#ifdef CONFIG_SCHEDSTATS
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void force_schedstat_enabled(void);
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#endif
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#endif /* _LINUX_SCHED_STAT_H */
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