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
xrep_notsupported(struct xfs_scrub * sc)11 static 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
20 int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc);
21 void xrep_failure(struct xfs_mount *mp);
22 int xrep_roll_ag_trans(struct xfs_scrub *sc);
23 bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
24 enum xfs_ag_resv_type type);
25 xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
26 int 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);
29 int 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
33 struct xbitmap;
34
35 int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
36 int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xbitmap *btlist);
37 int xrep_reap_extents(struct xfs_scrub *sc, struct xbitmap *exlist,
38 const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
39
40 struct 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
52 int 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);
54 void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
55 int xrep_ino_dqattach(struct xfs_scrub *sc);
56
57 /* Metadata repairers */
58
59 int xrep_probe(struct xfs_scrub *sc);
60 int xrep_superblock(struct xfs_scrub *sc);
61 int xrep_agf(struct xfs_scrub *sc);
62 int xrep_agfl(struct xfs_scrub *sc);
63 int xrep_agi(struct xfs_scrub *sc);
64
65 #else
66
xrep_attempt(struct xfs_inode * ip,struct xfs_scrub * sc)67 static inline int xrep_attempt(
68 struct xfs_inode *ip,
69 struct xfs_scrub *sc)
70 {
71 return -EOPNOTSUPP;
72 }
73
xrep_failure(struct xfs_mount * mp)74 static inline void xrep_failure(struct xfs_mount *mp) {}
75
76 static inline xfs_extlen_t
xrep_calc_ag_resblks(struct xfs_scrub * sc)77 xrep_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__ */
92
