fs/xfs/scrub/common.h

   1 /*
   2  * Copyright (C) 2017 Oracle.  All Rights Reserved.
   3  *
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it would be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write the Free Software Foundation,
  18  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
  19  */
  20 #ifndef __XFS_SCRUB_COMMON_H__
  21 #define __XFS_SCRUB_COMMON_H__
  22
  23 /*
  24  * We /could/ terminate a scrub/repair operation early.  If we're not
  25  * in a good place to continue (fatal signal, etc.) then bail out.
  26  * Note that we're careful not to make any judgements about *error.
  27  */
  28 static inline bool
  29 xfs_scrub_should_terminate(
  30         struct xfs_scrub_context        *sc,
  31         int                             *error)
  32 {
  33         if (fatal_signal_pending(current)) {
  34                 if (*error == 0)
  35                         *error = -EAGAIN;
  36                 return true;
  37         }
  38         return false;
  39 }
  40
  41 int xfs_scrub_trans_alloc(struct xfs_scrub_context *sc);
  42 bool xfs_scrub_process_error(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
  43                 xfs_agblock_t bno, int *error);
  44 bool xfs_scrub_fblock_process_error(struct xfs_scrub_context *sc, int whichfork,
  45                 xfs_fileoff_t offset, int *error);
  46
  47 bool xfs_scrub_xref_process_error(struct xfs_scrub_context *sc,
  48                 xfs_agnumber_t agno, xfs_agblock_t bno, int *error);
  49 bool xfs_scrub_fblock_xref_process_error(struct xfs_scrub_context *sc,
  50                 int whichfork, xfs_fileoff_t offset, int *error);
  51
  52 void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc,
  53                 struct xfs_buf *bp);
  54 void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, xfs_ino_t ino);
  55
  56 void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc,
  57                 struct xfs_buf *bp);
  58 void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino);
  59 void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork,
  60                 xfs_fileoff_t offset);
  61
  62 void xfs_scrub_block_xref_set_corrupt(struct xfs_scrub_context *sc,
  63                 struct xfs_buf *bp);
  64 void xfs_scrub_ino_xref_set_corrupt(struct xfs_scrub_context *sc,
  65                 xfs_ino_t ino);
  66 void xfs_scrub_fblock_xref_set_corrupt(struct xfs_scrub_context *sc,
  67                 int whichfork, xfs_fileoff_t offset);
  68
  69 void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino);
  70 void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork,
  71                 xfs_fileoff_t offset);
  72
  73 void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc);
  74 int xfs_scrub_checkpoint_log(struct xfs_mount *mp);
  75
  76 /* Are we set up for a cross-referencing check? */
  77 bool xfs_scrub_should_check_xref(struct xfs_scrub_context *sc, int *error,
  78                            struct xfs_btree_cur **curpp);
  79
  80 /* Setup functions */
  81 int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip);
  82 int xfs_scrub_setup_ag_allocbt(struct xfs_scrub_context *sc,
  83                                struct xfs_inode *ip);
  84 int xfs_scrub_setup_ag_iallocbt(struct xfs_scrub_context *sc,
  85                                 struct xfs_inode *ip);
  86 int xfs_scrub_setup_ag_rmapbt(struct xfs_scrub_context *sc,
  87                               struct xfs_inode *ip);
  88 int xfs_scrub_setup_ag_refcountbt(struct xfs_scrub_context *sc,
  89                                   struct xfs_inode *ip);
  90 int xfs_scrub_setup_inode(struct xfs_scrub_context *sc,
  91                           struct xfs_inode *ip);
  92 int xfs_scrub_setup_inode_bmap(struct xfs_scrub_context *sc,
  93                                struct xfs_inode *ip);
  94 int xfs_scrub_setup_inode_bmap_data(struct xfs_scrub_context *sc,
  95                                     struct xfs_inode *ip);
  96 int xfs_scrub_setup_directory(struct xfs_scrub_context *sc,
  97                               struct xfs_inode *ip);
  98 int xfs_scrub_setup_xattr(struct xfs_scrub_context *sc,
  99                           struct xfs_inode *ip);
 100 int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc,
 101                             struct xfs_inode *ip);
 102 int xfs_scrub_setup_parent(struct xfs_scrub_context *sc,
 103                            struct xfs_inode *ip);
 104 #ifdef CONFIG_XFS_RT
 105 int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip);
 106 #else
 107 static inline int
 108 xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip)
 109 {
 110         return -ENOENT;
 111 }
 112 #endif
 113 #ifdef CONFIG_XFS_QUOTA
 114 int xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip);
 115 #else
 116 static inline int
 117 xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip)
 118 {
 119         return -ENOENT;
 120 }
 121 #endif
 122
 123 void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa);
 124 int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
 125                       struct xfs_scrub_ag *sa);
 126 int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
 127                               struct xfs_buf **agi, struct xfs_buf **agf,
 128                               struct xfs_buf **agfl);
 129 void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa);
 130 int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc,
 131                             struct xfs_scrub_ag *sa);
 132 int xfs_scrub_walk_agfl(struct xfs_scrub_context *sc,
 133                         int (*fn)(struct xfs_scrub_context *, xfs_agblock_t bno,
 134                                   void *),
 135                         void *priv);
 136 int xfs_scrub_count_rmap_ownedby_ag(struct xfs_scrub_context *sc,
 137                                     struct xfs_btree_cur *cur,
 138                                     struct xfs_owner_info *oinfo,
 139                                     xfs_filblks_t *blocks);
 140
 141 int xfs_scrub_setup_ag_btree(struct xfs_scrub_context *sc,
 142                              struct xfs_inode *ip, bool force_log);
 143 int xfs_scrub_get_inode(struct xfs_scrub_context *sc, struct xfs_inode *ip_in);
 144 int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc,
 145                                    struct xfs_inode *ip, unsigned int resblks);
 146 void xfs_scrub_buffer_recheck(struct xfs_scrub_context *sc, struct xfs_buf *bp);
 147
 148 #endif  /* __XFS_SCRUB_COMMON_H__ */