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Diffstat (limited to 'fs/xfs/scrub/repair.h')
| -rw-r--r-- | fs/xfs/scrub/repair.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/fs/xfs/scrub/repair.h b/fs/xfs/scrub/repair.h new file mode 100644 index 000000000000..f2b0895294db --- /dev/null +++ b/fs/xfs/scrub/repair.h @@ -0,0 +1,132 @@ +/* + * Copyright (C) 2018 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_REPAIR_H__ +#define __XFS_SCRUB_REPAIR_H__ + +static inline int xfs_repair_notsupported(struct xfs_scrub_context *sc) +{ + return -EOPNOTSUPP; +} + +#ifdef CONFIG_XFS_ONLINE_REPAIR + +/* Repair helpers */ + +int xfs_repair_attempt(struct xfs_inode *ip, struct xfs_scrub_context *sc, + bool *fixed); +void xfs_repair_failure(struct xfs_mount *mp); +int xfs_repair_roll_ag_trans(struct xfs_scrub_context *sc); +bool xfs_repair_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks, + enum xfs_ag_resv_type type); +xfs_extlen_t xfs_repair_calc_ag_resblks(struct xfs_scrub_context *sc); +int xfs_repair_alloc_ag_block(struct xfs_scrub_context *sc, + struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno, + enum xfs_ag_resv_type resv); +int xfs_repair_init_btblock(struct xfs_scrub_context *sc, xfs_fsblock_t fsb, + struct xfs_buf **bpp, xfs_btnum_t btnum, + const struct xfs_buf_ops *ops); + +struct xfs_repair_extent { + struct list_head list; + xfs_fsblock_t fsbno; + xfs_extlen_t len; +}; + +struct xfs_repair_extent_list { + struct list_head list; +}; + +static inline void +xfs_repair_init_extent_list( + struct xfs_repair_extent_list *exlist) +{ + INIT_LIST_HEAD(&exlist->list); +} + +#define for_each_xfs_repair_extent_safe(rbe, n, exlist) \ + list_for_each_entry_safe((rbe), (n), &(exlist)->list, list) +int xfs_repair_collect_btree_extent(struct xfs_scrub_context *sc, + struct xfs_repair_extent_list *btlist, xfs_fsblock_t fsbno, + xfs_extlen_t len); +void xfs_repair_cancel_btree_extents(struct xfs_scrub_context *sc, + struct xfs_repair_extent_list *btlist); +int xfs_repair_subtract_extents(struct xfs_scrub_context *sc, + struct xfs_repair_extent_list *exlist, + struct xfs_repair_extent_list *sublist); +int xfs_repair_fix_freelist(struct xfs_scrub_context *sc, bool can_shrink); +int xfs_repair_invalidate_blocks(struct xfs_scrub_context *sc, + struct xfs_repair_extent_list *btlist); +int xfs_repair_reap_btree_extents(struct xfs_scrub_context *sc, + struct xfs_repair_extent_list *exlist, + struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type); + +struct xfs_repair_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 xfs_repair_find_ag_btree_roots(struct xfs_scrub_context *sc, + struct xfs_buf *agf_bp, + struct xfs_repair_find_ag_btree *btree_info, + struct xfs_buf *agfl_bp); +void xfs_repair_force_quotacheck(struct xfs_scrub_context *sc, uint dqtype); +int xfs_repair_ino_dqattach(struct xfs_scrub_context *sc); + +/* Metadata repairers */ + +int xfs_repair_probe(struct xfs_scrub_context *sc); +int xfs_repair_superblock(struct xfs_scrub_context *sc); + +#else + +static inline int xfs_repair_attempt( + struct xfs_inode *ip, + struct xfs_scrub_context *sc, + bool *fixed) +{ + return -EOPNOTSUPP; +} + +static inline void xfs_repair_failure(struct xfs_mount *mp) {} + +static inline xfs_extlen_t +xfs_repair_calc_ag_resblks( + struct xfs_scrub_context *sc) +{ + ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR)); + return 0; +} + +#define xfs_repair_probe xfs_repair_notsupported +#define xfs_repair_superblock xfs_repair_notsupported + +#endif /* CONFIG_XFS_ONLINE_REPAIR */ + +#endif /* __XFS_SCRUB_REPAIR_H__ */ |