sched/headers: Move task statistics APIs from <linux/sched.h> to <linux/sched/stat.h>
There are a number of task statistics related variables and methods exported via sched.h - collect them into <linux/sched/stat.h> and include it from their usage sites. 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> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -12,6 +12,7 @@
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/sched/stat.h>
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#include <linux/init.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/errno.h>
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@ -46,16 +46,6 @@ struct nameidata;
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struct signal_struct;
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struct signal_struct;
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struct sighand_struct;
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struct sighand_struct;
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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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#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
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#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
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extern void cpu_load_update_nohz_start(void);
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extern void cpu_load_update_nohz_start(void);
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extern void cpu_load_update_nohz_stop(void);
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extern void cpu_load_update_nohz_stop(void);
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@ -3,4 +3,22 @@
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#include <linux/sched.h>
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#include <linux/sched.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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#endif /* _LINUX_SCHED_STAT_H */
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#endif /* _LINUX_SCHED_STAT_H */
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