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 68 void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc, 69 struct xfs_buf *bp); 70 void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino); 71 void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork, 72 xfs_fileoff_t offset); 73 74 void xfs_scrub_block_xref_set_corrupt(struct xfs_scrub_context *sc, 75 struct xfs_buf *bp); 76 void xfs_scrub_ino_xref_set_corrupt(struct xfs_scrub_context *sc, 77 xfs_ino_t ino); 78 void xfs_scrub_fblock_xref_set_corrupt(struct xfs_scrub_context *sc, 79 int whichfork, xfs_fileoff_t offset); 80 81 void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino); 82 void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork, 83 xfs_fileoff_t offset); 84 85 void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc); 86 int xfs_scrub_checkpoint_log(struct xfs_mount *mp); 87 88 /* Are we set up for a cross-referencing check? */ 89 bool xfs_scrub_should_check_xref(struct xfs_scrub_context *sc, int *error, 90 struct xfs_btree_cur **curpp); 91 92 /* Setup functions */ 93 int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip); 94 int xfs_scrub_setup_ag_allocbt(struct xfs_scrub_context *sc, 95 struct xfs_inode *ip); 96 int xfs_scrub_setup_ag_iallocbt(struct xfs_scrub_context *sc, 97 struct xfs_inode *ip); 98 int xfs_scrub_setup_ag_rmapbt(struct xfs_scrub_context *sc, 99 struct xfs_inode *ip); 100 int xfs_scrub_setup_ag_refcountbt(struct xfs_scrub_context *sc, 101 struct xfs_inode *ip); 102 int xfs_scrub_setup_inode(struct xfs_scrub_context *sc, 103 struct xfs_inode *ip); 104 int xfs_scrub_setup_inode_bmap(struct xfs_scrub_context *sc, 105 struct xfs_inode *ip); 106 int xfs_scrub_setup_inode_bmap_data(struct xfs_scrub_context *sc, 107 struct xfs_inode *ip); 108 int xfs_scrub_setup_directory(struct xfs_scrub_context *sc, 109 struct xfs_inode *ip); 110 int xfs_scrub_setup_xattr(struct xfs_scrub_context *sc, 111 struct xfs_inode *ip); 112 int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc, 113 struct xfs_inode *ip); 114 int xfs_scrub_setup_parent(struct xfs_scrub_context *sc, 115 struct xfs_inode *ip); 116 #ifdef CONFIG_XFS_RT 117 int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip); 118 #else 119 static inline int 120 xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip) 121 { 122 return -ENOENT; 123 } 124 #endif 125 #ifdef CONFIG_XFS_QUOTA 126 int xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip); 127 #else 128 static inline int 129 xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip) 130 { 131 return -ENOENT; 132 } 133 #endif 134 135 void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa); 136 int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno, 137 struct xfs_scrub_ag *sa); 138 int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno, 139 struct xfs_buf **agi, struct xfs_buf **agf, 140 struct xfs_buf **agfl); 141 void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa); 142 int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc, 143 struct xfs_scrub_ag *sa); 144 int xfs_scrub_walk_agfl(struct xfs_scrub_context *sc, 145 int (*fn)(struct xfs_scrub_context *, xfs_agblock_t bno, 146 void *), 147 void *priv); 148 int xfs_scrub_count_rmap_ownedby_ag(struct xfs_scrub_context *sc, 149 struct xfs_btree_cur *cur, 150 struct xfs_owner_info *oinfo, 151 xfs_filblks_t *blocks); 152 153 int xfs_scrub_setup_ag_btree(struct xfs_scrub_context *sc, 154 struct xfs_inode *ip, bool force_log); 155 int xfs_scrub_get_inode(struct xfs_scrub_context *sc, struct xfs_inode *ip_in); 156 int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc, 157 struct xfs_inode *ip, unsigned int resblks); 158 void xfs_scrub_buffer_recheck(struct xfs_scrub_context *sc, struct xfs_buf *bp); 159 160 #endif /* __XFS_SCRUB_COMMON_H__ */ 161