fs/xfs/scrub/common.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_COMMON_H__
   7 #define __XFS_SCRUB_COMMON_H__
   8
   9 /*
  10  * We /could/ terminate a scrub/repair operation early.  If we're not
  11  * in a good place to continue (fatal signal, etc.) then bail out.
  12  * Note that we're careful not to make any judgements about *error.
  13  */
  14 static inline bool
  15 xchk_should_terminate(
  16         struct xfs_scrub        *sc,
  17         int                             *error)
  18 {
  19         if (fatal_signal_pending(current)) {
  20                 if (*error == 0)
  21                         *error = -EAGAIN;
  22                 return true;
  23         }
  24         return false;
  25 }
  26
  27 int xchk_trans_alloc(struct xfs_scrub *sc, uint resblks);
  28 bool xchk_process_error(struct xfs_scrub *sc, xfs_agnumber_t agno,
  29                 xfs_agblock_t bno, int *error);
  30 bool xchk_fblock_process_error(struct xfs_scrub *sc, int whichfork,
  31                 xfs_fileoff_t offset, int *error);
  32
  33 bool xchk_xref_process_error(struct xfs_scrub *sc,
  34                 xfs_agnumber_t agno, xfs_agblock_t bno, int *error);
  35 bool xchk_fblock_xref_process_error(struct xfs_scrub *sc,
  36                 int whichfork, xfs_fileoff_t offset, int *error);
  37
  38 void xchk_block_set_preen(struct xfs_scrub *sc,
  39                 struct xfs_buf *bp);
  40 void xchk_ino_set_preen(struct xfs_scrub *sc, xfs_ino_t ino);
  41
  42 void xchk_set_corrupt(struct xfs_scrub *sc);
  43 void xchk_block_set_corrupt(struct xfs_scrub *sc,
  44                 struct xfs_buf *bp);
  45 void xchk_ino_set_corrupt(struct xfs_scrub *sc, xfs_ino_t ino);
  46 void xchk_fblock_set_corrupt(struct xfs_scrub *sc, int whichfork,
  47                 xfs_fileoff_t offset);
  48
  49 void xchk_block_xref_set_corrupt(struct xfs_scrub *sc,
  50                 struct xfs_buf *bp);
  51 void xchk_ino_xref_set_corrupt(struct xfs_scrub *sc,
  52                 xfs_ino_t ino);
  53 void xchk_fblock_xref_set_corrupt(struct xfs_scrub *sc,
  54                 int whichfork, xfs_fileoff_t offset);
  55
  56 void xchk_ino_set_warning(struct xfs_scrub *sc, xfs_ino_t ino);
  57 void xchk_fblock_set_warning(struct xfs_scrub *sc, int whichfork,
  58                 xfs_fileoff_t offset);
  59
  60 void xchk_set_incomplete(struct xfs_scrub *sc);
  61 int xchk_checkpoint_log(struct xfs_mount *mp);
  62
  63 /* Are we set up for a cross-referencing check? */
  64 bool xchk_should_check_xref(struct xfs_scrub *sc, int *error,
  65                            struct xfs_btree_cur **curpp);
  66
  67 /* Setup functions */
  68 int xchk_setup_fs(struct xfs_scrub *sc, struct xfs_inode *ip);
  69 int xchk_setup_ag_allocbt(struct xfs_scrub *sc,
  70                                struct xfs_inode *ip);
  71 int xchk_setup_ag_iallocbt(struct xfs_scrub *sc,
  72                                 struct xfs_inode *ip);
  73 int xchk_setup_ag_rmapbt(struct xfs_scrub *sc,
  74                               struct xfs_inode *ip);
  75 int xchk_setup_ag_refcountbt(struct xfs_scrub *sc,
  76                                   struct xfs_inode *ip);
  77 int xchk_setup_inode(struct xfs_scrub *sc,
  78                           struct xfs_inode *ip);
  79 int xchk_setup_inode_bmap(struct xfs_scrub *sc,
  80                                struct xfs_inode *ip);
  81 int xchk_setup_inode_bmap_data(struct xfs_scrub *sc,
  82                                     struct xfs_inode *ip);
  83 int xchk_setup_directory(struct xfs_scrub *sc,
  84                               struct xfs_inode *ip);
  85 int xchk_setup_xattr(struct xfs_scrub *sc,
  86                           struct xfs_inode *ip);
  87 int xchk_setup_symlink(struct xfs_scrub *sc,
  88                             struct xfs_inode *ip);
  89 int xchk_setup_parent(struct xfs_scrub *sc,
  90                            struct xfs_inode *ip);
  91 #ifdef CONFIG_XFS_RT
  92 int xchk_setup_rt(struct xfs_scrub *sc, struct xfs_inode *ip);
  93 #else
  94 static inline int
  95 xchk_setup_rt(struct xfs_scrub *sc, struct xfs_inode *ip)
  96 {
  97         return -ENOENT;
  98 }
  99 #endif
 100 #ifdef CONFIG_XFS_QUOTA
 101 int xchk_setup_quota(struct xfs_scrub *sc, struct xfs_inode *ip);
 102 #else
 103 static inline int
 104 xchk_setup_quota(struct xfs_scrub *sc, struct xfs_inode *ip)
 105 {
 106         return -ENOENT;
 107 }
 108 #endif
 109 int xchk_setup_fscounters(struct xfs_scrub *sc, struct xfs_inode *ip);
 110
 111 void xchk_ag_free(struct xfs_scrub *sc, struct xchk_ag *sa);
 112 int xchk_ag_init(struct xfs_scrub *sc, xfs_agnumber_t agno,
 113                 struct xchk_ag *sa);
 114 void xchk_perag_get(struct xfs_mount *mp, struct xchk_ag *sa);
 115 int xchk_ag_read_headers(struct xfs_scrub *sc, xfs_agnumber_t agno,
 116                 struct xfs_buf **agi, struct xfs_buf **agf,
 117                 struct xfs_buf **agfl);
 118 void xchk_ag_btcur_free(struct xchk_ag *sa);
 119 int xchk_ag_btcur_init(struct xfs_scrub *sc, struct xchk_ag *sa);
 120 int xchk_count_rmap_ownedby_ag(struct xfs_scrub *sc, struct xfs_btree_cur *cur,
 121                 const struct xfs_owner_info *oinfo, xfs_filblks_t *blocks);
 122
 123 int xchk_setup_ag_btree(struct xfs_scrub *sc, struct xfs_inode *ip,
 124                 bool force_log);
 125 int xchk_get_inode(struct xfs_scrub *sc, struct xfs_inode *ip_in);
 126 int xchk_setup_inode_contents(struct xfs_scrub *sc, struct xfs_inode *ip,
 127                 unsigned int resblks);
 128 void xchk_buffer_recheck(struct xfs_scrub *sc, struct xfs_buf *bp);
 129
 130 /*
 131  * Don't bother cross-referencing if we already found corruption or cross
 132  * referencing discrepancies.
 133  */
 134 static inline bool xchk_skip_xref(struct xfs_scrub_metadata *sm)
 135 {
 136         return sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT |
 137                                XFS_SCRUB_OFLAG_XCORRUPT);
 138 }
 139
 140 int xchk_metadata_inode_forks(struct xfs_scrub *sc);
 141 int xchk_ilock_inverted(struct xfs_inode *ip, uint lock_mode);
 142 void xchk_stop_reaping(struct xfs_scrub *sc);
 143 void xchk_start_reaping(struct xfs_scrub *sc);
 144
 145 #endif  /* __XFS_SCRUB_COMMON_H__ */