[linux-2.6-block.git] / drivers / md / bcache / stats.h

#ifndef _BCACHE_STATS_H_
#define _BCACHE_STATS_H_

struct cache_stat_collector {
	atomic_t cache_hits;
	atomic_t cache_misses;
	atomic_t cache_bypass_hits;
	atomic_t cache_bypass_misses;
	atomic_t cache_readaheads;
	atomic_t cache_miss_collisions;
	atomic_t sectors_bypassed;
};

struct cache_stats {
	struct kobject		kobj;

	unsigned long cache_hits;
	unsigned long cache_misses;
	unsigned long cache_bypass_hits;
	unsigned long cache_bypass_misses;
	unsigned long cache_readaheads;
	unsigned long cache_miss_collisions;
	unsigned long sectors_bypassed;

	unsigned		rescale;
};

struct cache_accounting {
	struct closure		cl;
	struct timer_list	timer;
	atomic_t		closing;

	struct cache_stat_collector collector;

	struct cache_stats total;
	struct cache_stats five_minute;
	struct cache_stats hour;
	struct cache_stats day;
};

struct cache_set;
struct cached_dev;
struct bcache_device;

void bch_cache_accounting_init(struct cache_accounting *acc,
			       struct closure *parent);

int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
				   struct kobject *parent);

void bch_cache_accounting_clear(struct cache_accounting *acc);

void bch_cache_accounting_destroy(struct cache_accounting *acc);

void bch_mark_cache_accounting(struct cache_set *, struct bcache_device *,
			       bool, bool);
void bch_mark_cache_readahead(struct cache_set *, struct bcache_device *);
void bch_mark_cache_miss_collision(struct cache_set *, struct bcache_device *);
void bch_mark_sectors_bypassed(struct cache_set *, struct cached_dev *, int);

#endif /* _BCACHE_STATS_H_ */
Commit	Line	Data
cafe5635 KO	1	#ifndef _BCACHE_STATS_H_
	2	#define _BCACHE_STATS_H_
	3
	4	struct cache_stat_collector {
	5	atomic_t cache_hits;
	6	atomic_t cache_misses;
	7	atomic_t cache_bypass_hits;
	8	atomic_t cache_bypass_misses;
	9	atomic_t cache_readaheads;
	10	atomic_t cache_miss_collisions;
	11	atomic_t sectors_bypassed;
	12	};
	13
	14	struct cache_stats {
	15	struct kobject kobj;
	16
	17	unsigned long cache_hits;
	18	unsigned long cache_misses;
	19	unsigned long cache_bypass_hits;
	20	unsigned long cache_bypass_misses;
	21	unsigned long cache_readaheads;
	22	unsigned long cache_miss_collisions;
	23	unsigned long sectors_bypassed;
	24
	25	unsigned rescale;
	26	};
	27
	28	struct cache_accounting {
	29	struct closure cl;
	30	struct timer_list timer;
	31	atomic_t closing;
	32
	33	struct cache_stat_collector collector;
	34
	35	struct cache_stats total;
	36	struct cache_stats five_minute;
	37	struct cache_stats hour;
	38	struct cache_stats day;
	39	};
	40
220bb38c KO	41	struct cache_set;
	42	struct cached_dev;
	43	struct bcache_device;
cafe5635 KO	44
	45	void bch_cache_accounting_init(struct cache_accounting *acc,
	46	struct closure *parent);
	47
	48	int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
	49	struct kobject *parent);
	50
	51	void bch_cache_accounting_clear(struct cache_accounting *acc);
	52
	53	void bch_cache_accounting_destroy(struct cache_accounting *acc);
	54
220bb38c KO	55	void bch_mark_cache_accounting(struct cache_set , struct bcache_device ,
	56	bool, bool);
	57	void bch_mark_cache_readahead(struct cache_set , struct bcache_device );
	58	void bch_mark_cache_miss_collision(struct cache_set , struct bcache_device );
	59	void bch_mark_sectors_bypassed(struct cache_set , struct cached_dev , int);
cafe5635 KO	60
cafe5635 KO	61	#endif /* _BCACHE_STATS_H_ */