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