repair/rmap.h

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 Oracle.  All Rights Reserved.
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  */
   6 #ifndef RMAP_H_
   7 #define RMAP_H_
   8
   9 extern bool collect_rmaps;
  10
  11 extern bool rmap_needs_work(struct xfs_mount *);
  12
  13 extern void rmaps_init(struct xfs_mount *);
  14 extern void rmaps_free(struct xfs_mount *);
  15
  16 extern int rmap_add_rec(struct xfs_mount *, xfs_ino_t, int, struct xfs_bmbt_irec *);
  17 extern int rmap_finish_collecting_fork_recs(struct xfs_mount *mp,
  18                 xfs_agnumber_t agno);
  19 extern int rmap_add_ag_rec(struct xfs_mount *, xfs_agnumber_t agno,
  20                 xfs_agblock_t agbno, xfs_extlen_t len, uint64_t owner);
  21 extern int rmap_add_bmbt_rec(struct xfs_mount *, xfs_ino_t, int, xfs_fsblock_t);
  22 extern int rmap_fold_raw_recs(struct xfs_mount *mp, xfs_agnumber_t agno);
  23 extern bool rmaps_are_mergeable(struct xfs_rmap_irec *r1, struct xfs_rmap_irec *r2);
  24
  25 extern int rmap_add_fixed_ag_rec(struct xfs_mount *, xfs_agnumber_t);
  26 extern int rmap_store_ag_btree_rec(struct xfs_mount *, xfs_agnumber_t);
  27
  28 extern size_t rmap_record_count(struct xfs_mount *, xfs_agnumber_t);
  29 extern int rmap_init_cursor(xfs_agnumber_t, struct xfs_slab_cursor **);
  30 extern void rmap_avoid_check(void);
  31 void rmaps_verify_btree(struct xfs_mount *mp, xfs_agnumber_t agno);
  32
  33 extern int64_t rmap_diffkeys(struct xfs_rmap_irec *kp1,
  34                 struct xfs_rmap_irec *kp2);
  35 extern void rmap_high_key_from_rec(struct xfs_rmap_irec *rec,
  36                 struct xfs_rmap_irec *key);
  37
  38 extern int compute_refcounts(struct xfs_mount *, xfs_agnumber_t);
  39 extern size_t refcount_record_count(struct xfs_mount *, xfs_agnumber_t);
  40 extern int init_refcount_cursor(xfs_agnumber_t, struct xfs_slab_cursor **);
  41 extern void refcount_avoid_check(void);
  42 void check_refcounts(struct xfs_mount *mp, xfs_agnumber_t agno);
  43
  44 extern void record_inode_reflink_flag(struct xfs_mount *, struct xfs_dinode *,
  45         xfs_agnumber_t, xfs_agino_t, xfs_ino_t);
  46 extern int fix_inode_reflink_flags(struct xfs_mount *, xfs_agnumber_t);
  47
  48 extern void fix_freelist(struct xfs_mount *, xfs_agnumber_t, bool);
  49 extern void rmap_store_agflcount(struct xfs_mount *, xfs_agnumber_t, int);
  50
  51 xfs_extlen_t estimate_rmapbt_blocks(struct xfs_perag *pag);
  52 xfs_extlen_t estimate_refcountbt_blocks(struct xfs_perag *pag);
  53
  54 #endif /* RMAP_H_ */