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