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d86b4e6dc8
This is a cleanup for commit 1616a4c2ab ("bcache: remove bcache device
self-defined readahead")', currently no user for
bch_mark_cache_readahead() since that commit.
Signed-off-by: Lin Feng <linf@wangsu.com>
Signed-off-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20220919161647.81238-3-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHE_STATS_H_
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#define _BCACHE_STATS_H_
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struct cache_stat_collector {
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atomic_t cache_hits;
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atomic_t cache_misses;
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atomic_t cache_bypass_hits;
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atomic_t cache_bypass_misses;
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atomic_t cache_miss_collisions;
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atomic_t sectors_bypassed;
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};
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struct cache_stats {
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struct kobject kobj;
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unsigned long cache_hits;
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unsigned long cache_misses;
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unsigned long cache_bypass_hits;
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unsigned long cache_bypass_misses;
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unsigned long cache_readaheads;
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unsigned long cache_miss_collisions;
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unsigned long sectors_bypassed;
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unsigned int rescale;
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};
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struct cache_accounting {
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struct closure cl;
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struct timer_list timer;
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atomic_t closing;
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struct cache_stat_collector collector;
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struct cache_stats total;
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struct cache_stats five_minute;
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struct cache_stats hour;
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struct cache_stats day;
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};
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struct cache_set;
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struct cached_dev;
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struct bcache_device;
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void bch_cache_accounting_init(struct cache_accounting *acc,
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struct closure *parent);
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int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
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struct kobject *parent);
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void bch_cache_accounting_clear(struct cache_accounting *acc);
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void bch_cache_accounting_destroy(struct cache_accounting *acc);
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void bch_mark_cache_accounting(struct cache_set *c, struct bcache_device *d,
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bool hit, bool bypass);
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void bch_mark_cache_miss_collision(struct cache_set *c,
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struct bcache_device *d);
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void bch_mark_sectors_bypassed(struct cache_set *c,
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struct cached_dev *dc,
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int sectors);
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#endif /* _BCACHE_STATS_H_ */
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