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 #define for_each_journal_key(keys, i)                           \
   6         for (i = (keys).d; i < (keys).d + (keys).nr; (i)++)
   7
   8 struct journal_iter {
   9         struct list_head        list;
  10         enum btree_id           btree_id;
  11         unsigned                level;
  12         size_t                  idx;
  13         struct journal_keys     *keys;
  14 };
  15
  16 /*
  17  * Iterate over keys in the btree, with keys from the journal overlaid on top:
  18  */
  19
  20 struct btree_and_journal_iter {
  21         struct btree            *b;
  22         struct btree_node_iter  node_iter;
  23         struct bkey             unpacked;
  24
  25         struct journal_iter     journal;
  26
  27         enum last_key_returned {
  28                 none,
  29                 btree,
  30                 journal,
  31         }                       last;
  32 };
  33
  34 int bch2_journal_key_insert(struct bch_fs *, enum btree_id,
  35                             unsigned, struct bkey_i *);
  36 int bch2_journal_key_delete(struct bch_fs *, enum btree_id,
  37                             unsigned, struct bpos);
  38
  39 void bch2_btree_and_journal_iter_advance(struct btree_and_journal_iter *);
  40 struct bkey_s_c bch2_btree_and_journal_iter_peek(struct btree_and_journal_iter *);
  41 struct bkey_s_c bch2_btree_and_journal_iter_next(struct btree_and_journal_iter *);
  42
  43 void bch2_btree_and_journal_iter_exit(struct btree_and_journal_iter *);
  44 void bch2_btree_and_journal_iter_init_node_iter(struct btree_and_journal_iter *,
  45                                                 struct bch_fs *,
  46                                                 struct btree *);
  47
  48 typedef int (*btree_walk_key_fn)(struct btree_trans *, struct bkey_s_c);
  49
  50 int bch2_btree_and_journal_walk(struct btree_trans *, enum btree_id, btree_walk_key_fn);
  51
  52 void bch2_journal_keys_free(struct journal_keys *);
  53 void bch2_journal_entries_free(struct list_head *);
  54
  55 int bch2_fs_recovery(struct bch_fs *);
  56 int bch2_fs_initialize(struct bch_fs *);
  57
  58 #endif /* _BCACHEFS_RECOVERY_H */