629a21b621
Make sure to check for lru entries that point to buckets that don't exist as well as buckets in the wrong state, and improve the error message we print out. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_LRU_H
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#define _BCACHEFS_LRU_H
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#define LRU_TIME_BITS 48
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#define LRU_TIME_MAX ((1ULL << LRU_TIME_BITS) - 1)
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static inline struct bpos lru_pos(u16 lru_id, u64 dev_bucket, u64 time)
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{
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EBUG_ON(time > LRU_TIME_MAX);
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return POS(((u64) lru_id << LRU_TIME_BITS)|time, dev_bucket);
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}
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static inline u64 lru_pos_id(struct bpos pos)
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{
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return pos.inode >> LRU_TIME_BITS;
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}
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static inline u64 lru_pos_time(struct bpos pos)
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{
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return pos.inode & ~(~0ULL << LRU_TIME_BITS);
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}
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int bch2_lru_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
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void bch2_lru_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
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void bch2_lru_pos_to_text(struct printbuf *, struct bpos);
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#define bch2_bkey_ops_lru ((struct bkey_ops) { \
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.key_invalid = bch2_lru_invalid, \
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.val_to_text = bch2_lru_to_text, \
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})
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int bch2_lru_del(struct btree_trans *, u16, u64, u64);
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int bch2_lru_set(struct btree_trans *, u16, u64, u64);
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int bch2_lru_change(struct btree_trans *, u16, u64, u64, u64);
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int bch2_check_lrus(struct bch_fs *);
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#endif /* _BCACHEFS_LRU_H */
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