1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _BCACHE_STATS_H_
3#define _BCACHE_STATS_H_
4
5struct cache_stat_collector {
6	atomic_t cache_hits;
7	atomic_t cache_misses;
8	atomic_t cache_bypass_hits;
9	atomic_t cache_bypass_misses;
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_miss_collisions;
22	unsigned long sectors_bypassed;
23
24	unsigned int		rescale;
25};
26
27struct cache_accounting {
28	struct closure		cl;
29	struct timer_list	timer;
30	atomic_t		closing;
31
32	struct cache_stat_collector collector;
33
34	struct cache_stats total;
35	struct cache_stats five_minute;
36	struct cache_stats hour;
37	struct cache_stats day;
38};
39
40struct cache_set;
41struct cached_dev;
42struct bcache_device;
43
44void bch_cache_accounting_init(struct cache_accounting *acc,
45			       struct closure *parent);
46
47int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
48				   struct kobject *parent);
49
50void bch_cache_accounting_clear(struct cache_accounting *acc);
51
52void bch_cache_accounting_destroy(struct cache_accounting *acc);
53
54void bch_mark_cache_accounting(struct cache_set *c, struct bcache_device *d,
55			       bool hit, bool bypass);
56void bch_mark_cache_miss_collision(struct cache_set *c,
57				   struct bcache_device *d);
58void bch_mark_sectors_bypassed(struct cache_set *c,
59			       struct cached_dev *dc,
60			       int sectors);
61
62#endif /* _BCACHE_STATS_H_ */
63