[deliverable/linux.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 search;

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 search *s, bool hit, bool bypass);
void bch_mark_cache_readahead(struct search *s);
void bch_mark_cache_miss_collision(struct search *s);
void bch_mark_sectors_bypassed(struct search *s, int sectors);

#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
	41	struct search;
	42
	43	void bch_cache_accounting_init(struct cache_accounting *acc,
	44	struct closure *parent);
	45
	46	int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
	47	struct kobject *parent);
	48
	49	void bch_cache_accounting_clear(struct cache_accounting *acc);
	50
	51	void bch_cache_accounting_destroy(struct cache_accounting *acc);
	52
	53	void bch_mark_cache_accounting(struct search *s, bool hit, bool bypass);
	54	void bch_mark_cache_readahead(struct search *s);
	55	void bch_mark_cache_miss_collision(struct search *s);
	56	void bch_mark_sectors_bypassed(struct search *s, int sectors);
	57
	58	#endif /* _BCACHE_STATS_H_ */