Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __TRACE_STAT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __TRACE_STAT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * If you want to provide a stat file (one-shot statistics), fill
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * an iterator with stat_start/stat_next and a stat_show callbacks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * The others callbacks are optional.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct tracer_stat {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	/* The name of your stat file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	const char		*name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	/* Iteration over statistic entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	void			*(*stat_start)(struct tracer_stat *trace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	void			*(*stat_next)(void *prev, int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	/* Compare two entries for stats sorting */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	cmp_func_t		stat_cmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	/* Print a stat entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	int			(*stat_show)(struct seq_file *s, void *p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	/* Release an entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	void			(*stat_release)(void *stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	/* Print the headers of your stat entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	int			(*stat_headers)(struct seq_file *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  * Destroy or create a stat file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) extern int register_stat_tracer(struct tracer_stat *trace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) extern void unregister_stat_tracer(struct tracer_stat *trace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #endif /* __TRACE_STAT_H */