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