diff options
Diffstat (limited to 'include/linux/sched/stat.h')
-rw-r--r-- | include/linux/sched/stat.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h new file mode 100644 index 000000000..0108a38bb --- /dev/null +++ b/include/linux/sched/stat.h @@ -0,0 +1,34 @@ +/* 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 */ |