1#ifndef _BCACHE_STATS_H_
2#define _BCACHE_STATS_H_
3
4struct 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
14struct 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
28struct 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
41struct cache_set;
42struct cached_dev;
43struct bcache_device;
44
45void bch_cache_accounting_init(struct cache_accounting *acc,
46			       struct closure *parent);
47
48int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
49				   struct kobject *parent);
50
51void bch_cache_accounting_clear(struct cache_accounting *acc);
52
53void bch_cache_accounting_destroy(struct cache_accounting *acc);
54
55void bch_mark_cache_accounting(struct cache_set *, struct bcache_device *,
56			       bool, bool);
57void bch_mark_cache_readahead(struct cache_set *, struct bcache_device *);
58void bch_mark_cache_miss_collision(struct cache_set *, struct bcache_device *);
59void bch_mark_sectors_bypassed(struct cache_set *, struct cached_dev *, int);
60
61#endif /* _BCACHE_STATS_H_ */
62