1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _BCACHE_STATS_H_ 3*4882a593Smuzhiyun #define _BCACHE_STATS_H_ 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun struct cache_stat_collector { 6*4882a593Smuzhiyun atomic_t cache_hits; 7*4882a593Smuzhiyun atomic_t cache_misses; 8*4882a593Smuzhiyun atomic_t cache_bypass_hits; 9*4882a593Smuzhiyun atomic_t cache_bypass_misses; 10*4882a593Smuzhiyun atomic_t cache_readaheads; 11*4882a593Smuzhiyun atomic_t cache_miss_collisions; 12*4882a593Smuzhiyun atomic_t sectors_bypassed; 13*4882a593Smuzhiyun }; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun struct cache_stats { 16*4882a593Smuzhiyun struct kobject kobj; 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun unsigned long cache_hits; 19*4882a593Smuzhiyun unsigned long cache_misses; 20*4882a593Smuzhiyun unsigned long cache_bypass_hits; 21*4882a593Smuzhiyun unsigned long cache_bypass_misses; 22*4882a593Smuzhiyun unsigned long cache_readaheads; 23*4882a593Smuzhiyun unsigned long cache_miss_collisions; 24*4882a593Smuzhiyun unsigned long sectors_bypassed; 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun unsigned int rescale; 27*4882a593Smuzhiyun }; 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun struct cache_accounting { 30*4882a593Smuzhiyun struct closure cl; 31*4882a593Smuzhiyun struct timer_list timer; 32*4882a593Smuzhiyun atomic_t closing; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun struct cache_stat_collector collector; 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun struct cache_stats total; 37*4882a593Smuzhiyun struct cache_stats five_minute; 38*4882a593Smuzhiyun struct cache_stats hour; 39*4882a593Smuzhiyun struct cache_stats day; 40*4882a593Smuzhiyun }; 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun struct cache_set; 43*4882a593Smuzhiyun struct cached_dev; 44*4882a593Smuzhiyun struct bcache_device; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun void bch_cache_accounting_init(struct cache_accounting *acc, 47*4882a593Smuzhiyun struct closure *parent); 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun int bch_cache_accounting_add_kobjs(struct cache_accounting *acc, 50*4882a593Smuzhiyun struct kobject *parent); 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun void bch_cache_accounting_clear(struct cache_accounting *acc); 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun void bch_cache_accounting_destroy(struct cache_accounting *acc); 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun void bch_mark_cache_accounting(struct cache_set *c, struct bcache_device *d, 57*4882a593Smuzhiyun bool hit, bool bypass); 58*4882a593Smuzhiyun void bch_mark_cache_readahead(struct cache_set *c, struct bcache_device *d); 59*4882a593Smuzhiyun void bch_mark_cache_miss_collision(struct cache_set *c, 60*4882a593Smuzhiyun struct bcache_device *d); 61*4882a593Smuzhiyun void bch_mark_sectors_bypassed(struct cache_set *c, 62*4882a593Smuzhiyun struct cached_dev *dc, 63*4882a593Smuzhiyun int sectors); 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun #endif /* _BCACHE_STATS_H_ */ 66