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 void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc, 60 struct xfs_buf *bp); 61 void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, xfs_ino_t ino, 62 struct xfs_buf *bp); 63 64 void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc, 65 struct xfs_buf *bp); 66 void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino, 67 struct xfs_buf *bp); 68 void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork, 69 xfs_fileoff_t offset); 70 71 void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino, 72 struct xfs_buf *bp); 73 void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork, 74 xfs_fileoff_t offset); 75 76 void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc); 77 int xfs_scrub_checkpoint_log(struct xfs_mount *mp); 78 79 /* Setup functions */ 80 int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip); 81 int xfs_scrub_setup_ag_header(struct xfs_scrub_context *sc, 82 struct xfs_inode *ip); 83 int xfs_scrub_setup_ag_allocbt(struct xfs_scrub_context *sc, 84 struct xfs_inode *ip); 85 int xfs_scrub_setup_ag_iallocbt(struct xfs_scrub_context *sc, 86 struct xfs_inode *ip); 87 int xfs_scrub_setup_ag_rmapbt(struct xfs_scrub_context *sc, 88 struct xfs_inode *ip); 89 int xfs_scrub_setup_ag_refcountbt(struct xfs_scrub_context *sc, 90 struct xfs_inode *ip); 91 int xfs_scrub_setup_inode(struct xfs_scrub_context *sc, 92 struct xfs_inode *ip); 93 int xfs_scrub_setup_inode_bmap(struct xfs_scrub_context *sc, 94 struct xfs_inode *ip); 95 int xfs_scrub_setup_inode_bmap_data(struct xfs_scrub_context *sc, 96 struct xfs_inode *ip); 97 int xfs_scrub_setup_directory(struct xfs_scrub_context *sc, 98 struct xfs_inode *ip); 99 int xfs_scrub_setup_xattr(struct xfs_scrub_context *sc, 100 struct xfs_inode *ip); 101 int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc, 102 struct xfs_inode *ip); 103 int xfs_scrub_setup_parent(struct xfs_scrub_context *sc, 104 struct xfs_inode *ip); 105 #ifdef CONFIG_XFS_RT 106 int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip); 107 #else 108 static inline int 109 xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip) 110 { 111 return -ENOENT; 112 } 113 #endif 114 #ifdef CONFIG_XFS_QUOTA 115 int xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip); 116 #else 117 static inline int 118 xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip) 119 { 120 return -ENOENT; 121 } 122 #endif 123 124 void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa); 125 int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno, 126 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_walk_agfl(struct xfs_scrub_context *sc, 134 int (*fn)(struct xfs_scrub_context *, xfs_agblock_t bno, 135 void *), 136 void *priv); 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); 143 144 #endif /* __XFS_SCRUB_COMMON_H__ */ 145