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b65db750e2
This patch adds a superblock error counter for every distinct fsck error; this means that when analyzing filesystems out in the wild we'll be able to see what sorts of inconsistencies are being found and repair, and hence what bugs to look for. Errors validating bkeys are not yet considered distinct fsck errors, but this patch adds a new helper, bkey_fsck_err(), in order to add distinct error types for them as well. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
69 lines
1.6 KiB
C
69 lines
1.6 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 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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static inline struct bpos lru_pos(u16 lru_id, u64 dev_bucket, u64 time)
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{
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struct bpos pos = POS(((u64) lru_id << LRU_TIME_BITS)|time, dev_bucket);
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EBUG_ON(time > LRU_TIME_MAX);
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EBUG_ON(lru_pos_id(pos) != lru_id);
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EBUG_ON(lru_pos_time(pos) != time);
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EBUG_ON(pos.offset != dev_bucket);
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return pos;
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}
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#define BCH_LRU_TYPES() \
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x(read) \
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x(fragmentation)
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enum bch_lru_type {
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#define x(n) BCH_LRU_##n,
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BCH_LRU_TYPES()
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#undef x
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};
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#define BCH_LRU_FRAGMENTATION_START ((1U << 16) - 1)
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static inline enum bch_lru_type lru_type(struct bkey_s_c l)
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{
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u16 lru_id = l.k->p.inode >> 48;
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if (lru_id == BCH_LRU_FRAGMENTATION_START)
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return BCH_LRU_fragmentation;
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return BCH_LRU_read;
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}
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int bch2_lru_invalid(struct bch_fs *, struct bkey_s_c,
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enum bkey_invalid_flags, 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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.min_val_size = 8, \
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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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