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Diffstat (limited to 'fs/xfs/scrub/common.h')
| -rw-r--r-- | fs/xfs/scrub/common.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h new file mode 100644 index 000000000000..5c043855570e --- /dev/null +++ b/fs/xfs/scrub/common.h @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2017 Oracle. All Rights Reserved. + * + * Author: Darrick J. Wong <darrick.wong@oracle.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#ifndef __XFS_SCRUB_COMMON_H__ +#define __XFS_SCRUB_COMMON_H__ + +/* + * We /could/ terminate a scrub/repair operation early. If we're not + * in a good place to continue (fatal signal, etc.) then bail out. + * Note that we're careful not to make any judgements about *error. + */ +static inline bool +xfs_scrub_should_terminate( + struct xfs_scrub_context *sc, + int *error) +{ + if (fatal_signal_pending(current)) { + if (*error == 0) + *error = -EAGAIN; + return true; + } + return false; +} + +/* + * Grab an empty transaction so that we can re-grab locked buffers if + * one of our btrees turns out to be cyclic. + */ +static inline int +xfs_scrub_trans_alloc( + struct xfs_scrub_metadata *sm, + struct xfs_mount *mp, + struct xfs_trans **tpp) +{ + return xfs_trans_alloc_empty(mp, tpp); +} + +bool xfs_scrub_process_error(struct xfs_scrub_context *sc, xfs_agnumber_t agno, + xfs_agblock_t bno, int *error); +bool xfs_scrub_fblock_process_error(struct xfs_scrub_context *sc, int whichfork, + xfs_fileoff_t offset, int *error); + +void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc, + struct xfs_buf *bp); +void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, xfs_ino_t ino, + struct xfs_buf *bp); + +void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc, + struct xfs_buf *bp); +void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino, + struct xfs_buf *bp); +void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork, + xfs_fileoff_t offset); + +void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino, + struct xfs_buf *bp); +void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork, + xfs_fileoff_t offset); + +void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc); +int xfs_scrub_checkpoint_log(struct xfs_mount *mp); + +/* Setup functions */ +int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip); +int xfs_scrub_setup_ag_header(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_ag_allocbt(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_ag_iallocbt(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_ag_rmapbt(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_ag_refcountbt(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_inode(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_inode_bmap(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_inode_bmap_data(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_directory(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_xattr(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +int xfs_scrub_setup_parent(struct xfs_scrub_context *sc, + struct xfs_inode *ip); +#ifdef CONFIG_XFS_RT +int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip); +#else +static inline int +xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip) +{ + return -ENOENT; +} +#endif +#ifdef CONFIG_XFS_QUOTA +int xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip); +#else +static inline int +xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip) +{ + return -ENOENT; +} +#endif + +void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa); +int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno, + struct xfs_scrub_ag *sa); +int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno, + struct xfs_buf **agi, struct xfs_buf **agf, + struct xfs_buf **agfl); +void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa); +int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc, + struct xfs_scrub_ag *sa); +int xfs_scrub_walk_agfl(struct xfs_scrub_context *sc, + int (*fn)(struct xfs_scrub_context *, xfs_agblock_t bno, + void *), + void *priv); + +int xfs_scrub_setup_ag_btree(struct xfs_scrub_context *sc, + struct xfs_inode *ip, bool force_log); +int xfs_scrub_get_inode(struct xfs_scrub_context *sc, struct xfs_inode *ip_in); +int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc, + struct xfs_inode *ip, unsigned int resblks); + +#endif /* __XFS_SCRUB_COMMON_H__ */ |