diff options
Diffstat (limited to 'include/linux/sched/stat.h')
| -rw-r--r-- | include/linux/sched/stat.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h index 30fe012aecb0..0d52ceb6d3ae 100644 --- a/include/linux/sched/stat.h +++ b/include/linux/sched/stat.h @@ -3,4 +3,22 @@ #include <linux/sched.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); + #endif /* _LINUX_SCHED_STAT_H */ |