repair/da_util.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2015 Red Hat, Inc.
   4  * All Rights Reserved.
   5  */
   6
   7 #ifndef _XR_DA_UTIL_H
   8 #define _XR_DA_UTIL_H
   9
  10 struct da_level_state  {
  11         xfs_buf_t       *bp;            /* block bp */
  12         xfs_dablk_t     bno;            /* file block number */
  13         xfs_dahash_t    hashval;        /* last verified hashval */
  14         int             index;          /* current index in block */
  15         int             dirty;          /* is buffer dirty ? (1 == yes) */
  16 };
  17
  18 typedef struct da_bt_cursor {
  19         int                     active; /* highest level in tree (# levels-1) */
  20         xfs_ino_t               ino;
  21         xfs_dablk_t             greatest_bno;
  22         xfs_dinode_t            *dip;
  23         struct da_level_state   level[XFS_DA_NODE_MAXDEPTH];
  24         struct blkmap           *blkmap;
  25 } da_bt_cursor_t;
  26
  27 int
  28 namecheck(
  29         char            *name,
  30         int             length,
  31         bool            isadir);
  32
  33 struct xfs_buf *
  34 da_read_buf(
  35         xfs_mount_t     *mp,
  36         int             nex,
  37         bmap_ext_t      *bmp,
  38         const struct xfs_buf_ops *ops);
  39
  40 void
  41 release_da_cursor(
  42         xfs_mount_t     *mp,
  43         da_bt_cursor_t  *cursor,
  44         int             prev_level);
  45
  46 void
  47 err_release_da_cursor(
  48         xfs_mount_t     *mp,
  49         da_bt_cursor_t  *cursor,
  50         int             prev_level);
  51
  52 int
  53 traverse_int_dablock(
  54         xfs_mount_t     *mp,
  55         da_bt_cursor_t  *da_cursor,
  56         xfs_dablk_t     *rbno,
  57         int             whichfork);
  58
  59 int
  60 verify_da_path(
  61         xfs_mount_t     *mp,
  62         da_bt_cursor_t  *cursor,
  63         const int       p_level,
  64         int             whichfork);
  65
  66 int
  67 verify_final_da_path(
  68         xfs_mount_t     *mp,
  69         da_bt_cursor_t  *cursor,
  70         const int       p_level,
  71         int             whichfork);
  72 #endif  /* _XR_DA_UTIL_H */