1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _BCACHEFS_JOURNAL_IO_H 3 #define _BCACHEFS_JOURNAL_IO_H 4 5 /* 6 * Only used for holding the journal entries we read in btree_journal_read() 7 * during cache_registration 8 */ 9 struct journal_replay { 10 struct journal_ptr { 11 bool csum_good; 12 u8 dev; 13 u32 bucket; 14 u32 bucket_offset; 15 u64 sector; 16 } ptrs[BCH_REPLICAS_MAX]; 17 unsigned nr_ptrs; 18 19 bool csum_good; 20 bool ignore; 21 /* must be last: */ 22 struct jset j; 23 }; 24 25 static inline struct jset_entry *__jset_entry_type_next(struct jset *jset, 26 struct jset_entry *entry, unsigned type) 27 { 28 while (entry < vstruct_last(jset)) { 29 if (entry->type == type) 30 return entry; 31 32 entry = vstruct_next(entry); 33 } 34 35 return NULL; 36 } 37 38 #define for_each_jset_entry_type(entry, jset, type) \ 39 for (entry = (jset)->start; \ 40 (entry = __jset_entry_type_next(jset, entry, type)); \ 41 entry = vstruct_next(entry)) 42 43 #define jset_entry_for_each_key(_e, _k) \ 44 for (_k = (_e)->start; \ 45 _k < vstruct_last(_e); \ 46 _k = bkey_next(_k)) 47 48 #define for_each_jset_key(k, entry, jset) \ 49 for_each_jset_entry_type(entry, jset, BCH_JSET_ENTRY_btree_keys)\ 50 jset_entry_for_each_key(entry, k) 51 52 int bch2_journal_entry_validate(struct bch_fs *, struct jset *, 53 struct jset_entry *, unsigned, int, 54 enum bkey_invalid_flags); 55 void bch2_journal_entry_to_text(struct printbuf *, struct bch_fs *, 56 struct jset_entry *); 57 58 void bch2_journal_ptrs_to_text(struct printbuf *, struct bch_fs *, 59 struct journal_replay *); 60 61 int bch2_journal_read(struct bch_fs *, u64 *, u64 *, u64 *); 62 63 void bch2_journal_write(struct closure *); 64 65 #endif /* _BCACHEFS_JOURNAL_IO_H */ 66