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 xfs_scrub_should_terminate(
  16         struct xfs_scrub_context        *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 xfs_scrub_trans_alloc(struct xfs_scrub_context *sc, uint resblks);
  28 bool xfs_scrub_process_error(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
  29                 xfs_agblock_t bno, int *error);
  30 bool xfs_scrub_fblock_process_error(struct xfs_scrub_context *sc, int whichfork,
  31                 xfs_fileoff_t offset, int *error);
  32
  33 bool xfs_scrub_xref_process_error(struct xfs_scrub_context *sc,
  34                 xfs_agnumber_t agno, xfs_agblock_t bno, int *error);
  35 bool xfs_scrub_fblock_xref_process_error(struct xfs_scrub_context *sc,
  36                 int whichfork, xfs_fileoff_t offset, int *error);
  37
  38 void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc,
  39                 struct xfs_buf *bp);
  40 void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, xfs_ino_t ino);
  41
  42 void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc,
  43                 struct xfs_buf *bp);
  44 void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino);
  45 void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork,
  46                 xfs_fileoff_t offset);
  47
  48 void xfs_scrub_block_xref_set_corrupt(struct xfs_scrub_context *sc,
  49                 struct xfs_buf *bp);
  50 void xfs_scrub_ino_xref_set_corrupt(struct xfs_scrub_context *sc,
  51                 xfs_ino_t ino);
  52 void xfs_scrub_fblock_xref_set_corrupt(struct xfs_scrub_context *sc,
  53                 int whichfork, xfs_fileoff_t offset);
  54
  55 void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino);
  56 void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork,
  57                 xfs_fileoff_t offset);
  58
  59 void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc);
  60 int xfs_scrub_checkpoint_log(struct xfs_mount *mp);
  61
  62 /* Are we set up for a cross-referencing check? */
  63 bool xfs_scrub_should_check_xref(struct xfs_scrub_context *sc, int *error,
  64                            struct xfs_btree_cur **curpp);
  65
  66 /* Setup functions */
  67 int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip);
  68 int xfs_scrub_setup_ag_allocbt(struct xfs_scrub_context *sc,
  69                                struct xfs_inode *ip);
  70 int xfs_scrub_setup_ag_iallocbt(struct xfs_scrub_context *sc,
  71                                 struct xfs_inode *ip);
  72 int xfs_scrub_setup_ag_rmapbt(struct xfs_scrub_context *sc,
  73                               struct xfs_inode *ip);
  74 int xfs_scrub_setup_ag_refcountbt(struct xfs_scrub_context *sc,
  75                                   struct xfs_inode *ip);
  76 int xfs_scrub_setup_inode(struct xfs_scrub_context *sc,
  77                           struct xfs_inode *ip);
  78 int xfs_scrub_setup_inode_bmap(struct xfs_scrub_context *sc,
  79                                struct xfs_inode *ip);
  80 int xfs_scrub_setup_inode_bmap_data(struct xfs_scrub_context *sc,
  81                                     struct xfs_inode *ip);
  82 int xfs_scrub_setup_directory(struct xfs_scrub_context *sc,
  83                               struct xfs_inode *ip);
  84 int xfs_scrub_setup_xattr(struct xfs_scrub_context *sc,
  85                           struct xfs_inode *ip);
  86 int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc,
  87                             struct xfs_inode *ip);
  88 int xfs_scrub_setup_parent(struct xfs_scrub_context *sc,
  89                            struct xfs_inode *ip);
  90 #ifdef CONFIG_XFS_RT
  91 int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip);
  92 #else
  93 static inline int
  94 xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip)
  95 {
  96         return -ENOENT;
  97 }
  98 #endif
  99 #ifdef CONFIG_XFS_QUOTA
 100 int xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip);
 101 #else
 102 static inline int
 103 xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip)
 104 {
 105         return -ENOENT;
 106 }
 107 #endif
 108
 109 void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa);
 110 int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
 111                       struct xfs_scrub_ag *sa);
 112 void xfs_scrub_perag_get(struct xfs_mount *mp, struct xfs_scrub_ag *sa);
 113 int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
 114                               struct xfs_buf **agi, struct xfs_buf **agf,
 115                               struct xfs_buf **agfl);
 116 void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa);
 117 int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc,
 118                             struct xfs_scrub_ag *sa);
 119 int xfs_scrub_count_rmap_ownedby_ag(struct xfs_scrub_context *sc,
 120                                     struct xfs_btree_cur *cur,
 121                                     struct xfs_owner_info *oinfo,
 122                                     xfs_filblks_t *blocks);
 123
 124 int xfs_scrub_setup_ag_btree(struct xfs_scrub_context *sc,
 125                              struct xfs_inode *ip, bool force_log);
 126 int xfs_scrub_get_inode(struct xfs_scrub_context *sc, struct xfs_inode *ip_in);
 127 int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc,
 128                                    struct xfs_inode *ip, unsigned int resblks);
 129 void xfs_scrub_buffer_recheck(struct xfs_scrub_context *sc, struct xfs_buf *bp);
 130
 131 /*
 132  * Don't bother cross-referencing if we already found corruption or cross
 133  * referencing discrepancies.
 134  */
 135 static inline bool xfs_scrub_skip_xref(struct xfs_scrub_metadata *sm)
 136 {
 137         return sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT |
 138                                XFS_SCRUB_OFLAG_XCORRUPT);
 139 }
 140
 141 int xfs_scrub_metadata_inode_forks(struct xfs_scrub_context *sc);
 142 int xfs_scrub_ilock_inverted(struct xfs_inode *ip, uint lock_mode);
 143
 144 #endif  /* __XFS_SCRUB_COMMON_H__ */