61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_JOURNAL_IO_H
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#define _BCACHEFS_JOURNAL_IO_H
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/*
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* Only used for holding the journal entries we read in btree_journal_read()
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* during cache_registration
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*/
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struct journal_replay {
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struct list_head list;
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struct journal_ptr {
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u8 dev;
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u32 bucket;
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u32 bucket_offset;
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u64 sector;
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} ptrs[BCH_REPLICAS_MAX];
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unsigned nr_ptrs;
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/* checksum error, but we may want to try using it anyways: */
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bool bad;
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bool ignore;
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/* must be last: */
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struct jset j;
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};
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static inline struct jset_entry *__jset_entry_type_next(struct jset *jset,
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struct jset_entry *entry, unsigned type)
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{
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while (entry < vstruct_last(jset)) {
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if (entry->type == type)
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return entry;
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entry = vstruct_next(entry);
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}
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return NULL;
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}
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#define for_each_jset_entry_type(entry, jset, type) \
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for (entry = (jset)->start; \
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(entry = __jset_entry_type_next(jset, entry, type)); \
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entry = vstruct_next(entry))
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#define for_each_jset_key(k, _n, entry, jset) \
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for_each_jset_entry_type(entry, jset, BCH_JSET_ENTRY_btree_keys) \
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vstruct_for_each_safe(entry, k, _n)
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int bch2_journal_entry_validate(struct bch_fs *, const char *,
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struct jset_entry *, unsigned, int, int);
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void bch2_journal_entry_to_text(struct printbuf *, struct bch_fs *,
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struct jset_entry *);
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void bch2_journal_ptrs_to_text(struct printbuf *, struct bch_fs *,
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struct journal_replay *);
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int bch2_journal_read(struct bch_fs *, struct list_head *, u64 *, u64 *);
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void bch2_journal_write(struct closure *);
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#endif /* _BCACHEFS_JOURNAL_IO_H */
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