mirror of
https://github.com/torvalds/linux.git
synced 2024-11-05 19:41:54 +00:00
cafe563591
Does writethrough and writeback caching, handles unclean shutdown, and has a bunch of other nifty features motivated by real world usage. See the wiki at http://bcache.evilpiepirate.org for more. Signed-off-by: Kent Overstreet <koverstreet@google.com>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
#ifndef _BCACHE_STATS_H_
|
|
#define _BCACHE_STATS_H_
|
|
|
|
struct cache_stat_collector {
|
|
atomic_t cache_hits;
|
|
atomic_t cache_misses;
|
|
atomic_t cache_bypass_hits;
|
|
atomic_t cache_bypass_misses;
|
|
atomic_t cache_readaheads;
|
|
atomic_t cache_miss_collisions;
|
|
atomic_t sectors_bypassed;
|
|
};
|
|
|
|
struct cache_stats {
|
|
struct kobject kobj;
|
|
|
|
unsigned long cache_hits;
|
|
unsigned long cache_misses;
|
|
unsigned long cache_bypass_hits;
|
|
unsigned long cache_bypass_misses;
|
|
unsigned long cache_readaheads;
|
|
unsigned long cache_miss_collisions;
|
|
unsigned long sectors_bypassed;
|
|
|
|
unsigned rescale;
|
|
};
|
|
|
|
struct cache_accounting {
|
|
struct closure cl;
|
|
struct timer_list timer;
|
|
atomic_t closing;
|
|
|
|
struct cache_stat_collector collector;
|
|
|
|
struct cache_stats total;
|
|
struct cache_stats five_minute;
|
|
struct cache_stats hour;
|
|
struct cache_stats day;
|
|
};
|
|
|
|
struct search;
|
|
|
|
void bch_cache_accounting_init(struct cache_accounting *acc,
|
|
struct closure *parent);
|
|
|
|
int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
|
|
struct kobject *parent);
|
|
|
|
void bch_cache_accounting_clear(struct cache_accounting *acc);
|
|
|
|
void bch_cache_accounting_destroy(struct cache_accounting *acc);
|
|
|
|
void bch_mark_cache_accounting(struct search *s, bool hit, bool bypass);
|
|
void bch_mark_cache_readahead(struct search *s);
|
|
void bch_mark_cache_miss_collision(struct search *s);
|
|
void bch_mark_sectors_bypassed(struct search *s, int sectors);
|
|
|
|
#endif /* _BCACHE_STATS_H_ */
|