1// SPDX-License-Identifier: GPL-2.0+
 2/*
 3 * Copyright (C) 2018 Oracle.  All Rights Reserved.
 4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
 5 */
 6#ifndef __XFS_SCRUB_REPAIR_H__
 7#define __XFS_SCRUB_REPAIR_H__
 8
 9#include "xfs_quota_defs.h"
10
11static inline int xrep_notsupported(struct xfs_scrub *sc)
12{
13	return -EOPNOTSUPP;
14}
15
16#ifdef CONFIG_XFS_ONLINE_REPAIR
17
18/* Repair helpers */
19
20int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc);
21void xrep_failure(struct xfs_mount *mp);
22int xrep_roll_ag_trans(struct xfs_scrub *sc);
23bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
24		enum xfs_ag_resv_type type);
25xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
26int xrep_alloc_ag_block(struct xfs_scrub *sc,
27		const struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
28		enum xfs_ag_resv_type resv);
29int xrep_init_btblock(struct xfs_scrub *sc, xfs_fsblock_t fsb,
30		struct xfs_buf **bpp, xfs_btnum_t btnum,
31		const struct xfs_buf_ops *ops);
32
33struct xbitmap;
34
35int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
36int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xbitmap *btlist);
37int xrep_reap_extents(struct xfs_scrub *sc, struct xbitmap *exlist,
38		const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
39
40struct xrep_find_ag_btree {
41	/* in: rmap owner of the btree we're looking for */
42	uint64_t			rmap_owner;
43
44	/* in: buffer ops */
45	const struct xfs_buf_ops	*buf_ops;
46
47	/* out: the highest btree block found and the tree height */
48	xfs_agblock_t			root;
49	unsigned int			height;
50};
51
52int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
53		struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
54void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
55int xrep_ino_dqattach(struct xfs_scrub *sc);
56
57/* Metadata repairers */
58
59int xrep_probe(struct xfs_scrub *sc);
60int xrep_superblock(struct xfs_scrub *sc);
61int xrep_agf(struct xfs_scrub *sc);
62int xrep_agfl(struct xfs_scrub *sc);
63int xrep_agi(struct xfs_scrub *sc);
64
65#else
66
67static inline int xrep_attempt(
68	struct xfs_inode	*ip,
69	struct xfs_scrub	*sc)
70{
71	return -EOPNOTSUPP;
72}
73
74static inline void xrep_failure(struct xfs_mount *mp) {}
75
76static inline xfs_extlen_t
77xrep_calc_ag_resblks(
78	struct xfs_scrub	*sc)
79{
80	return 0;
81}
82
83#define xrep_probe			xrep_notsupported
84#define xrep_superblock			xrep_notsupported
85#define xrep_agf			xrep_notsupported
86#define xrep_agfl			xrep_notsupported
87#define xrep_agi			xrep_notsupported
88
89#endif /* CONFIG_XFS_ONLINE_REPAIR */
90
91#endif	/* __XFS_SCRUB_REPAIR_H__ */