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
 9static inline int xrep_notsupported(struct xfs_scrub *sc)
10{
11	return -EOPNOTSUPP;
12}
13
14#ifdef CONFIG_XFS_ONLINE_REPAIR
15
16/* Repair helpers */
17
18int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc);
19void xrep_failure(struct xfs_mount *mp);
20int xrep_roll_ag_trans(struct xfs_scrub *sc);
21bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
22		enum xfs_ag_resv_type type);
23xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
24int xrep_alloc_ag_block(struct xfs_scrub *sc,
25		const struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
26		enum xfs_ag_resv_type resv);
27int xrep_init_btblock(struct xfs_scrub *sc, xfs_fsblock_t fsb,
28		struct xfs_buf **bpp, xfs_btnum_t btnum,
29		const struct xfs_buf_ops *ops);
30
31struct xfs_bitmap;
32
33int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
34int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xfs_bitmap *btlist);
35int xrep_reap_extents(struct xfs_scrub *sc, struct xfs_bitmap *exlist,
36		const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
37
38struct xrep_find_ag_btree {
39	/* in: rmap owner of the btree we're looking for */
40	uint64_t			rmap_owner;
41
42	/* in: buffer ops */
43	const struct xfs_buf_ops	*buf_ops;
44
45	/* out: the highest btree block found and the tree height */
46	xfs_agblock_t			root;
47	unsigned int			height;
48};
49
50int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
51		struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
52void xrep_force_quotacheck(struct xfs_scrub *sc, uint dqtype);
53int xrep_ino_dqattach(struct xfs_scrub *sc);
54
55/* Metadata repairers */
56
57int xrep_probe(struct xfs_scrub *sc);
58int xrep_superblock(struct xfs_scrub *sc);
59int xrep_agf(struct xfs_scrub *sc);
60int xrep_agfl(struct xfs_scrub *sc);
61int xrep_agi(struct xfs_scrub *sc);
62
63#else
64
65static inline int xrep_attempt(
66	struct xfs_inode	*ip,
67	struct xfs_scrub	*sc)
68{
69	return -EOPNOTSUPP;
70}
71
72static inline void xrep_failure(struct xfs_mount *mp) {}
73
74static inline xfs_extlen_t
75xrep_calc_ag_resblks(
76	struct xfs_scrub	*sc)
77{
78	ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR));
79	return 0;
80}
81
82#define xrep_probe			xrep_notsupported
83#define xrep_superblock			xrep_notsupported
84#define xrep_agf			xrep_notsupported
85#define xrep_agfl			xrep_notsupported
86#define xrep_agi			xrep_notsupported
87
88#endif /* CONFIG_XFS_ONLINE_REPAIR */
89
90#endif	/* __XFS_SCRUB_REPAIR_H__ */