| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef _BCACHE_STATS_H_ |
| 3 | #define _BCACHE_STATS_H_ |
| 4 | |
| 5 | struct 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 | |
| 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_miss_collisions; |
| 22 | unsigned long sectors_bypassed; |
| 23 | |
| 24 | unsigned int rescale; |
| 25 | }; |
| 26 | |
| 27 | struct 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 | |
| 40 | struct cache_set; |
| 41 | struct cached_dev; |
| 42 | struct bcache_device; |
| 43 | |
| 44 | void bch_cache_accounting_init(struct cache_accounting *acc, |
| 45 | struct closure *parent); |
| 46 | |
| 47 | int bch_cache_accounting_add_kobjs(struct cache_accounting *acc, |
| 48 | struct kobject *parent); |
| 49 | |
| 50 | void bch_cache_accounting_clear(struct cache_accounting *acc); |
| 51 | |
| 52 | void bch_cache_accounting_destroy(struct cache_accounting *acc); |
| 53 | |
| 54 | void bch_mark_cache_accounting(struct cache_set *c, struct bcache_device *d, |
| 55 | bool hit, bool bypass); |
| 56 | void bch_mark_cache_miss_collision(struct cache_set *c, |
| 57 | struct bcache_device *d); |
| 58 | void bch_mark_sectors_bypassed(struct cache_set *c, |
| 59 | struct cached_dev *dc, |
| 60 | int sectors); |
| 61 | |
| 62 | #endif /* _BCACHE_STATS_H_ */ |
| 63 |