fs/bcachefs/recovery.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_RECOVERY_H
   3 #define _BCACHEFS_RECOVERY_H
   4
   5 struct journal_keys {
   6         struct journal_key {
   7                 enum btree_id   btree_id:8;
   8                 struct bkey_i   *k;
   9                 u32             journal_seq;
  10                 u32             journal_offset;
  11         }                       *d;
  12         size_t                  nr;
  13         u64                     journal_seq_base;
  14 };
  15
  16 #define for_each_journal_key(keys, i)                           \
  17         for (i = (keys).d; i < (keys).d + (keys).nr; (i)++)
  18
  19 struct journal_iter {
  20         struct journal_keys     *keys;
  21         struct journal_key      *k;
  22         enum btree_id           btree_id;
  23 };
  24
  25 struct btree_and_journal_iter {
  26         enum btree_id           btree_id;
  27
  28         struct btree_iter       *btree;
  29         struct journal_iter     journal;
  30
  31         enum last_key_returned {
  32                 none,
  33                 btree,
  34                 journal,
  35         }                       last;
  36 };
  37
  38 void bch2_btree_and_journal_iter_advance(struct btree_and_journal_iter *);
  39 struct bkey_s_c bch2_btree_and_journal_iter_peek(struct btree_and_journal_iter *);
  40 struct bkey_s_c bch2_btree_and_journal_iter_next(struct btree_and_journal_iter *);
  41 struct journal_key *journal_key_search(struct journal_keys *,
  42                                        enum btree_id, struct bpos);
  43 void bch2_btree_and_journal_iter_init(struct btree_and_journal_iter *,
  44                                       struct btree_trans *,
  45                                       struct journal_keys *,
  46                                       enum btree_id, struct bpos);
  47
  48 int bch2_fs_recovery(struct bch_fs *);
  49 int bch2_fs_initialize(struct bch_fs *);
  50
  51 #endif /* _BCACHEFS_RECOVERY_H */