tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2018-2023 Oracle. All Rights Reserved.
4 * Author: Darrick J. Wong <djwong@kernel.org>
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_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;
34struct xagb_bitmap;
35
36int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
37int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xbitmap *btlist);
38int xrep_reap_extents(struct xfs_scrub *sc, struct xbitmap *exlist,
39 const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
40
41struct xrep_find_ag_btree {
42 /* in: rmap owner of the btree we're looking for */
43 uint64_t rmap_owner;
44
45 /* in: buffer ops */
46 const struct xfs_buf_ops *buf_ops;
47
48 /* in: maximum btree height */
49 unsigned int maxlevels;
50
51 /* out: the highest btree block found and the tree height */
52 xfs_agblock_t root;
53 unsigned int height;
54};
55
56int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
57 struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
58void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
59int xrep_ino_dqattach(struct xfs_scrub *sc);
60
61/* Metadata repairers */
62
63int xrep_probe(struct xfs_scrub *sc);
64int xrep_superblock(struct xfs_scrub *sc);
65int xrep_agf(struct xfs_scrub *sc);
66int xrep_agfl(struct xfs_scrub *sc);
67int xrep_agi(struct xfs_scrub *sc);
68
69#else
70
71static inline int
72xrep_attempt(
73 struct xfs_scrub *sc)
74{
75 return -EOPNOTSUPP;
76}
77
78static inline void xrep_failure(struct xfs_mount *mp) {}
79
80static inline xfs_extlen_t
81xrep_calc_ag_resblks(
82 struct xfs_scrub *sc)
83{
84 return 0;
85}
86
87#define xrep_probe xrep_notsupported
88#define xrep_superblock xrep_notsupported
89#define xrep_agf xrep_notsupported
90#define xrep_agfl xrep_notsupported
91#define xrep_agi xrep_notsupported
92
93#endif /* CONFIG_XFS_ONLINE_REPAIR */
94
95#endif /* __XFS_SCRUB_REPAIR_H__ */