git.sesse.net Git - bcachefs-tools-debian/blob - libbcachefs/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                 unsigned        allocated:1;
   9                 struct bpos     pos;
  10                 struct bkey_i   *k;
  11                 u32             journal_seq;
  12                 u32             journal_offset;
  13         }                       *d;
  14         size_t                  nr;
  15         u64                     journal_seq_base;
  16 };
  17
  18 #define for_each_journal_key(keys, i)                           \
  19         for (i = (keys).d; i < (keys).d + (keys).nr; (i)++)
  20
  21 struct journal_iter {
  22         struct journal_keys     *keys;
  23         struct journal_key      *k;
  24         enum btree_id           btree_id;
  25 };
  26
  27 struct btree_and_journal_iter {
  28         enum btree_id           btree_id;
  29
  30         struct btree_iter       *btree;
  31         struct journal_iter     journal;
  32
  33         enum last_key_returned {
  34                 none,
  35                 btree,
  36                 journal,
  37         }                       last;
  38 };
  39
  40 void bch2_btree_and_journal_iter_advance(struct btree_and_journal_iter *);
  41 struct bkey_s_c bch2_btree_and_journal_iter_peek(struct btree_and_journal_iter *);
  42 struct bkey_s_c bch2_btree_and_journal_iter_next(struct btree_and_journal_iter *);
  43 struct journal_key *journal_key_search(struct journal_keys *,
  44                                        enum btree_id, struct bpos);
  45 void bch2_btree_and_journal_iter_init(struct btree_and_journal_iter *,
  46                                       struct btree_trans *,
  47                                       struct journal_keys *,
  48                                       enum btree_id, struct bpos);
  49
  50 int bch2_fs_recovery(struct bch_fs *);
  51 int bch2_fs_initialize(struct bch_fs *);
  52
  53 #endif /* _BCACHEFS_RECOVERY_H */