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, uint resblks); 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 void xfs_scrub_perag_get(struct xfs_mount *mp, struct xfs_scrub_ag *sa); 127 int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno, 128 struct xfs_buf **agi, struct xfs_buf **agf, 129 struct xfs_buf **agfl); 130 void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa); 131 int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc, 132 struct xfs_scrub_ag *sa); 133 int xfs_scrub_count_rmap_ownedby_ag(struct xfs_scrub_context *sc, 134 struct xfs_btree_cur *cur, 135 struct xfs_owner_info *oinfo, 136 xfs_filblks_t *blocks); 137 138 int xfs_scrub_setup_ag_btree(struct xfs_scrub_context *sc, 139 struct xfs_inode *ip, bool force_log); 140 int xfs_scrub_get_inode(struct xfs_scrub_context *sc, struct xfs_inode *ip_in); 141 int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc, 142 struct xfs_inode *ip, unsigned int resblks); 143 void xfs_scrub_buffer_recheck(struct xfs_scrub_context *sc, struct xfs_buf *bp); 144 145 /* 146 * Don't bother cross-referencing if we already found corruption or cross 147 * referencing discrepancies. 148 */ 149 static inline bool xfs_scrub_skip_xref(struct xfs_scrub_metadata *sm) 150 { 151 return sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT | 152 XFS_SCRUB_OFLAG_XCORRUPT); 153 } 154 155 int xfs_scrub_metadata_inode_forks(struct xfs_scrub_context *sc); 156 int xfs_scrub_ilock_inverted(struct xfs_inode *ip, uint lock_mode); 157 158 #endif /* __XFS_SCRUB_COMMON_H__ */ 159