repair/rmap.h

   1 /*
   2  * Copyright (C) 2016 Oracle.  All Rights Reserved.
   3  *
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it would be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write the Free Software Foundation,
  18  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
  19  */
  20 #ifndef RMAP_H_
  21 #define RMAP_H_
  22
  23 extern bool collect_rmaps;
  24
  25 extern bool rmap_needs_work(struct xfs_mount *);
  26
  27 extern void rmaps_init(struct xfs_mount *);
  28 extern void rmaps_free(struct xfs_mount *);
  29
  30 extern int rmap_add_rec(struct xfs_mount *, xfs_ino_t, int, struct xfs_bmbt_irec *);
  31 extern int rmap_finish_collecting_fork_recs(struct xfs_mount *mp,
  32                 xfs_agnumber_t agno);
  33 extern int rmap_add_ag_rec(struct xfs_mount *, xfs_agnumber_t agno,
  34                 xfs_agblock_t agbno, xfs_extlen_t len, uint64_t owner);
  35 extern int rmap_add_bmbt_rec(struct xfs_mount *, xfs_ino_t, int, xfs_fsblock_t);
  36 extern int rmap_fold_raw_recs(struct xfs_mount *mp, xfs_agnumber_t agno);
  37 extern bool rmaps_are_mergeable(struct xfs_rmap_irec *r1, struct xfs_rmap_irec *r2);
  38
  39 extern int rmap_add_fixed_ag_rec(struct xfs_mount *, xfs_agnumber_t);
  40 extern int rmap_store_ag_btree_rec(struct xfs_mount *, xfs_agnumber_t);
  41
  42 extern size_t rmap_record_count(struct xfs_mount *, xfs_agnumber_t);
  43 extern int rmap_init_cursor(xfs_agnumber_t, struct xfs_slab_cursor **);
  44 extern void rmap_avoid_check(void);
  45 extern int rmaps_verify_btree(struct xfs_mount *, xfs_agnumber_t);
  46
  47 extern int64_t rmap_diffkeys(struct xfs_rmap_irec *kp1,
  48                 struct xfs_rmap_irec *kp2);
  49 extern void rmap_high_key_from_rec(struct xfs_rmap_irec *rec,
  50                 struct xfs_rmap_irec *key);
  51
  52 extern int compute_refcounts(struct xfs_mount *, xfs_agnumber_t);
  53 extern size_t refcount_record_count(struct xfs_mount *, xfs_agnumber_t);
  54 extern int init_refcount_cursor(xfs_agnumber_t, struct xfs_slab_cursor **);
  55 extern void refcount_avoid_check(void);
  56 extern int check_refcounts(struct xfs_mount *, xfs_agnumber_t);
  57
  58 extern void record_inode_reflink_flag(struct xfs_mount *, struct xfs_dinode *,
  59         xfs_agnumber_t, xfs_agino_t, xfs_ino_t);
  60 extern int fix_inode_reflink_flags(struct xfs_mount *, xfs_agnumber_t);
  61
  62 extern void fix_freelist(struct xfs_mount *, xfs_agnumber_t, bool);
  63 extern void rmap_store_agflcount(struct xfs_mount *, xfs_agnumber_t, int);
  64
  65 #endif /* RMAP_H_ */