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40 lines
970 B
40 lines
970 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#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 acquired 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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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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