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 /* 42 * Grab an empty transaction so that we can re-grab locked buffers if 43 * one of our btrees turns out to be cyclic. 44 */ 45 static inline int 46 xfs_scrub_trans_alloc( 47 struct xfs_scrub_metadata *sm, 48 struct xfs_mount *mp, 49 struct xfs_trans **tpp) 50 { 51 return xfs_trans_alloc_empty(mp, tpp); 52 } 53 54 bool xfs_scrub_process_error(struct xfs_scrub_context *sc, xfs_agnumber_t agno, 55 xfs_agblock_t bno, int *error); 56 bool xfs_scrub_fblock_process_error(struct xfs_scrub_context *sc, int whichfork, 57 xfs_fileoff_t offset, int *error); 58 59 bool xfs_scrub_xref_process_error(struct xfs_scrub_context *sc, 60 xfs_agnumber_t agno, xfs_agblock_t bno, int *error); 61 bool xfs_scrub_fblock_xref_process_error(struct xfs_scrub_context *sc, 62 int whichfork, xfs_fileoff_t offset, int *error); 63 64 void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc, 65 struct xfs_buf *bp); 66 void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, xfs_ino_t ino, 67 struct xfs_buf *bp); 68 69 void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc, 70 struct xfs_buf *bp); 71 void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino, 72 struct xfs_buf *bp); 73 void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork, 74 xfs_fileoff_t offset); 75 76 void xfs_scrub_block_xref_set_corrupt(struct xfs_scrub_context *sc, 77 struct xfs_buf *bp); 78 void xfs_scrub_ino_xref_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino, 79 struct xfs_buf *bp); 80 void xfs_scrub_fblock_xref_set_corrupt(struct xfs_scrub_context *sc, 81 int whichfork, xfs_fileoff_t offset); 82 83 void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino, 84 struct xfs_buf *bp); 85 void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork, 86 xfs_fileoff_t offset); 87 88 void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc); 89 int xfs_scrub_checkpoint_log(struct xfs_mount *mp); 90 91 /* Are we set up for a cross-referencing check? */ 92 bool xfs_scrub_should_check_xref(struct xfs_scrub_context *sc, int *error, 93 struct xfs_btree_cur **curpp); 94 95 /* Setup functions */ 96 int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip); 97 int xfs_scrub_setup_ag_allocbt(struct xfs_scrub_context *sc, 98 struct xfs_inode *ip); 99 int xfs_scrub_setup_ag_iallocbt(struct xfs_scrub_context *sc, 100 struct xfs_inode *ip); 101 int xfs_scrub_setup_ag_rmapbt(struct xfs_scrub_context *sc, 102 struct xfs_inode *ip); 103 int xfs_scrub_setup_ag_refcountbt(struct xfs_scrub_context *sc, 104 struct xfs_inode *ip); 105 int xfs_scrub_setup_inode(struct xfs_scrub_context *sc, 106 struct xfs_inode *ip); 107 int xfs_scrub_setup_inode_bmap(struct xfs_scrub_context *sc, 108 struct xfs_inode *ip); 109 int xfs_scrub_setup_inode_bmap_data(struct xfs_scrub_context *sc, 110 struct xfs_inode *ip); 111 int xfs_scrub_setup_directory(struct xfs_scrub_context *sc, 112 struct xfs_inode *ip); 113 int xfs_scrub_setup_xattr(struct xfs_scrub_context *sc, 114 struct xfs_inode *ip); 115 int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc, 116 struct xfs_inode *ip); 117 int xfs_scrub_setup_parent(struct xfs_scrub_context *sc, 118 struct xfs_inode *ip); 119 #ifdef CONFIG_XFS_RT 120 int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip); 121 #else 122 static inline int 123 xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip) 124 { 125 return -ENOENT; 126 } 127 #endif 128 #ifdef CONFIG_XFS_QUOTA 129 int xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip); 130 #else 131 static inline int 132 xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip) 133 { 134 return -ENOENT; 135 } 136 #endif 137 138 void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa); 139 int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno, 140 struct xfs_scrub_ag *sa); 141 int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno, 142 struct xfs_buf **agi, struct xfs_buf **agf, 143 struct xfs_buf **agfl); 144 void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa); 145 int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc, 146 struct xfs_scrub_ag *sa); 147 int xfs_scrub_walk_agfl(struct xfs_scrub_context *sc, 148 int (*fn)(struct xfs_scrub_context *, xfs_agblock_t bno, 149 void *), 150 void *priv); 151 int xfs_scrub_count_rmap_ownedby_ag(struct xfs_scrub_context *sc, 152 struct xfs_btree_cur *cur, 153 struct xfs_owner_info *oinfo, 154 xfs_filblks_t *blocks); 155 156 int xfs_scrub_setup_ag_btree(struct xfs_scrub_context *sc, 157 struct xfs_inode *ip, bool force_log); 158 int xfs_scrub_get_inode(struct xfs_scrub_context *sc, struct xfs_inode *ip_in); 159 int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc, 160 struct xfs_inode *ip, unsigned int resblks); 161 void xfs_scrub_buffer_recheck(struct xfs_scrub_context *sc, struct xfs_buf *bp); 162 163 #endif /* __XFS_SCRUB_COMMON_H__ */ 164