fs/xfs/scrub/btree.h

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017 Oracle.  All Rights Reserved.
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  */
   6 #ifndef __XFS_SCRUB_BTREE_H__
   7 #define __XFS_SCRUB_BTREE_H__
   8
   9 /* btree scrub */
  10
  11 /* Check for btree operation errors. */
  12 bool xchk_btree_process_error(struct xfs_scrub *sc,
  13                 struct xfs_btree_cur *cur, int level, int *error);
  14
  15 /* Check for btree xref operation errors. */
  16 bool xchk_btree_xref_process_error(struct xfs_scrub *sc,
  17                 struct xfs_btree_cur *cur, int level, int *error);
  18
  19 /* Check for btree corruption. */
  20 void xchk_btree_set_corrupt(struct xfs_scrub *sc,
  21                 struct xfs_btree_cur *cur, int level);
  22
  23 /* Check for btree xref discrepancies. */
  24 void xchk_btree_xref_set_corrupt(struct xfs_scrub *sc,
  25                 struct xfs_btree_cur *cur, int level);
  26
  27 struct xchk_btree;
  28 typedef int (*xchk_btree_rec_fn)(
  29         struct xchk_btree       *bs,
  30         union xfs_btree_rec     *rec);
  31
  32 struct xchk_btree {
  33         /* caller-provided scrub state */
  34         struct xfs_scrub                *sc;
  35         struct xfs_btree_cur            *cur;
  36         xchk_btree_rec_fn               scrub_rec;
  37         const struct xfs_owner_info     *oinfo;
  38         void                            *private;
  39
  40         /* internal scrub state */
  41         union xfs_btree_rec             lastrec;
  42         bool                            firstrec;
  43         union xfs_btree_key             lastkey[XFS_BTREE_MAXLEVELS];
  44         bool                            firstkey[XFS_BTREE_MAXLEVELS];
  45         struct list_head                to_check;
  46 };
  47 int xchk_btree(struct xfs_scrub *sc, struct xfs_btree_cur *cur,
  48                 xchk_btree_rec_fn scrub_fn, const struct xfs_owner_info *oinfo,
  49                 void *private);
  50
  51 #endif /* __XFS_SCRUB_BTREE_H__ */