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Diffstat (limited to 'fs/xfs/scrub/repair.h')
| -rw-r--r-- | fs/xfs/scrub/repair.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/fs/xfs/scrub/repair.h b/fs/xfs/scrub/repair.h new file mode 100644 index 000000000..9de321eee --- /dev/null +++ b/fs/xfs/scrub/repair.h @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 Oracle. All Rights Reserved. + * Author: Darrick J. Wong <darrick.wong@oracle.com> + */ +#ifndef __XFS_SCRUB_REPAIR_H__ +#define __XFS_SCRUB_REPAIR_H__ + +static inline int xrep_notsupported(struct xfs_scrub *sc) +{ + return -EOPNOTSUPP; +} + +#ifdef CONFIG_XFS_ONLINE_REPAIR + +/* Repair helpers */ + +int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc, bool *fixed); +void xrep_failure(struct xfs_mount *mp); +int xrep_roll_ag_trans(struct xfs_scrub *sc); +bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks, + enum xfs_ag_resv_type type); +xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc); +int xrep_alloc_ag_block(struct xfs_scrub *sc, struct xfs_owner_info *oinfo, + xfs_fsblock_t *fsbno, enum xfs_ag_resv_type resv); +int xrep_init_btblock(struct xfs_scrub *sc, xfs_fsblock_t fsb, + struct xfs_buf **bpp, xfs_btnum_t btnum, + const struct xfs_buf_ops *ops); + +struct xfs_bitmap; + +int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink); +int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xfs_bitmap *btlist); +int xrep_reap_extents(struct xfs_scrub *sc, struct xfs_bitmap *exlist, + struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type); + +struct xrep_find_ag_btree { + /* in: rmap owner of the btree we're looking for */ + uint64_t rmap_owner; + + /* in: buffer ops */ + const struct xfs_buf_ops *buf_ops; + + /* in: magic number of the btree */ + uint32_t magic; + + /* out: the highest btree block found and the tree height */ + xfs_agblock_t root; + unsigned int height; +}; + +int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp, + struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp); +void xrep_force_quotacheck(struct xfs_scrub *sc, uint dqtype); +int xrep_ino_dqattach(struct xfs_scrub *sc); + +/* Metadata repairers */ + +int xrep_probe(struct xfs_scrub *sc); +int xrep_superblock(struct xfs_scrub *sc); +int xrep_agf(struct xfs_scrub *sc); +int xrep_agfl(struct xfs_scrub *sc); +int xrep_agi(struct xfs_scrub *sc); + +#else + +static inline int xrep_attempt( + struct xfs_inode *ip, + struct xfs_scrub *sc, + bool *fixed) +{ + return -EOPNOTSUPP; +} + +static inline void xrep_failure(struct xfs_mount *mp) {} + +static inline xfs_extlen_t +xrep_calc_ag_resblks( + struct xfs_scrub *sc) +{ + ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR)); + return 0; +} + +#define xrep_probe xrep_notsupported +#define xrep_superblock xrep_notsupported +#define xrep_agf xrep_notsupported +#define xrep_agfl xrep_notsupported +#define xrep_agi xrep_notsupported + +#endif /* CONFIG_XFS_ONLINE_REPAIR */ + +#endif /* __XFS_SCRUB_REPAIR_H__ */ |