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_ */ 63