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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
11struct xfs_rtgroup;
12struct xchk_stats_run;
13
14static inline int xrep_notsupported(struct xfs_scrub *sc)
15{
16 return -EOPNOTSUPP;
17}
18
19#ifdef CONFIG_XFS_ONLINE_REPAIR
20
21/* Repair helpers */
22
23int xrep_attempt(struct xfs_scrub *sc, struct xchk_stats_run *run);
24bool xrep_will_attempt(struct xfs_scrub *sc);
25void xrep_failure(struct xfs_mount *mp);
26int xrep_roll_ag_trans(struct xfs_scrub *sc);
27int xrep_roll_trans(struct xfs_scrub *sc);
28int xrep_defer_finish(struct xfs_scrub *sc);
29bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
30 enum xfs_ag_resv_type type);
31xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
32
33static inline int
34xrep_trans_commit(
35 struct xfs_scrub *sc)
36{
37 int error = xfs_trans_commit(sc->tp);
38
39 sc->tp = NULL;
40 return error;
41}
42
43struct xbitmap;
44struct xagb_bitmap;
45struct xrgb_bitmap;
46struct xfsb_bitmap;
47struct xrtb_bitmap;
48
49int xrep_fix_freelist(struct xfs_scrub *sc, int alloc_flags);
50
51struct xrep_find_ag_btree {
52 /* in: rmap owner of the btree we're looking for */
53 uint64_t rmap_owner;
54
55 /* in: buffer ops */
56 const struct xfs_buf_ops *buf_ops;
57
58 /* in: maximum btree height */
59 unsigned int maxlevels;
60
61 /* out: the highest btree block found and the tree height */
62 xfs_agblock_t root;
63 unsigned int height;
64};
65
66int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
67 struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
68
69#ifdef CONFIG_XFS_QUOTA
70void xrep_update_qflags(struct xfs_scrub *sc, unsigned int clear_flags,
71 unsigned int set_flags);
72void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
73int xrep_ino_dqattach(struct xfs_scrub *sc);
74#else
75# define xrep_force_quotacheck(sc, type) ((void)0)
76# define xrep_ino_dqattach(sc) (0)
77#endif /* CONFIG_XFS_QUOTA */
78
79int xrep_setup_xfbtree(struct xfs_scrub *sc, const char *descr);
80
81int xrep_ino_ensure_extent_count(struct xfs_scrub *sc, int whichfork,
82 xfs_extnum_t nextents);
83int xrep_reset_perag_resv(struct xfs_scrub *sc);
84int xrep_bmap(struct xfs_scrub *sc, int whichfork, bool allow_unwritten);
85int xrep_metadata_inode_forks(struct xfs_scrub *sc);
86int xrep_setup_ag_rmapbt(struct xfs_scrub *sc);
87int xrep_setup_ag_refcountbt(struct xfs_scrub *sc);
88int xrep_setup_xattr(struct xfs_scrub *sc);
89int xrep_setup_directory(struct xfs_scrub *sc);
90int xrep_setup_parent(struct xfs_scrub *sc);
91int xrep_setup_nlinks(struct xfs_scrub *sc);
92int xrep_setup_symlink(struct xfs_scrub *sc, unsigned int *resblks);
93int xrep_setup_dirtree(struct xfs_scrub *sc);
94int xrep_setup_rtrmapbt(struct xfs_scrub *sc);
95int xrep_setup_rtrefcountbt(struct xfs_scrub *sc);
96
97/* Repair setup functions */
98int xrep_setup_ag_allocbt(struct xfs_scrub *sc);
99
100struct xfs_imap;
101int xrep_setup_inode(struct xfs_scrub *sc, const struct xfs_imap *imap);
102
103void xrep_ag_btcur_init(struct xfs_scrub *sc, struct xchk_ag *sa);
104int xrep_ag_init(struct xfs_scrub *sc, struct xfs_perag *pag,
105 struct xchk_ag *sa);
106#ifdef CONFIG_XFS_RT
107int xrep_rtgroup_init(struct xfs_scrub *sc, struct xfs_rtgroup *rtg,
108 struct xchk_rt *sr, unsigned int rtglock_flags);
109void xrep_rtgroup_btcur_init(struct xfs_scrub *sc, struct xchk_rt *sr);
110int xrep_require_rtext_inuse(struct xfs_scrub *sc, xfs_rgblock_t rgbno,
111 xfs_filblks_t len);
112xfs_extlen_t xrep_calc_rtgroup_resblks(struct xfs_scrub *sc);
113#else
114# define xrep_rtgroup_init(sc, rtg, sr, lockflags) (-ENOSYS)
115# define xrep_calc_rtgroup_resblks(sc) (0)
116#endif /* CONFIG_XFS_RT */
117
118int xrep_check_ino_btree_mapping(struct xfs_scrub *sc,
119 const struct xfs_rmap_irec *rec);
120
121/* Metadata revalidators */
122
123int xrep_revalidate_allocbt(struct xfs_scrub *sc);
124int xrep_revalidate_iallocbt(struct xfs_scrub *sc);
125
126/* Metadata repairers */
127
128int xrep_probe(struct xfs_scrub *sc);
129int xrep_superblock(struct xfs_scrub *sc);
130int xrep_agf(struct xfs_scrub *sc);
131int xrep_agfl(struct xfs_scrub *sc);
132int xrep_agi(struct xfs_scrub *sc);
133int xrep_allocbt(struct xfs_scrub *sc);
134int xrep_iallocbt(struct xfs_scrub *sc);
135int xrep_rmapbt(struct xfs_scrub *sc);
136int xrep_refcountbt(struct xfs_scrub *sc);
137int xrep_inode(struct xfs_scrub *sc);
138int xrep_bmap_data(struct xfs_scrub *sc);
139int xrep_bmap_attr(struct xfs_scrub *sc);
140int xrep_bmap_cow(struct xfs_scrub *sc);
141int xrep_nlinks(struct xfs_scrub *sc);
142int xrep_fscounters(struct xfs_scrub *sc);
143int xrep_xattr(struct xfs_scrub *sc);
144int xrep_directory(struct xfs_scrub *sc);
145int xrep_parent(struct xfs_scrub *sc);
146int xrep_symlink(struct xfs_scrub *sc);
147int xrep_dirtree(struct xfs_scrub *sc);
148int xrep_metapath(struct xfs_scrub *sc);
149
150#ifdef CONFIG_XFS_RT
151int xrep_rtbitmap(struct xfs_scrub *sc);
152int xrep_rtsummary(struct xfs_scrub *sc);
153int xrep_rgsuperblock(struct xfs_scrub *sc);
154int xrep_rtrmapbt(struct xfs_scrub *sc);
155int xrep_rtrefcountbt(struct xfs_scrub *sc);
156#else
157# define xrep_rtbitmap xrep_notsupported
158# define xrep_rtsummary xrep_notsupported
159# define xrep_rgsuperblock xrep_notsupported
160# define xrep_rtrmapbt xrep_notsupported
161# define xrep_rtrefcountbt xrep_notsupported
162#endif /* CONFIG_XFS_RT */
163
164#ifdef CONFIG_XFS_QUOTA
165int xrep_quota(struct xfs_scrub *sc);
166int xrep_quotacheck(struct xfs_scrub *sc);
167#else
168# define xrep_quota xrep_notsupported
169# define xrep_quotacheck xrep_notsupported
170#endif /* CONFIG_XFS_QUOTA */
171
172int xrep_reinit_pagf(struct xfs_scrub *sc);
173int xrep_reinit_pagi(struct xfs_scrub *sc);
174
175bool xrep_buf_verify_struct(struct xfs_buf *bp, const struct xfs_buf_ops *ops);
176void xrep_inode_set_nblocks(struct xfs_scrub *sc, int64_t new_blocks);
177int xrep_reset_metafile_resv(struct xfs_scrub *sc);
178
179#else
180
181#define xrep_ino_dqattach(sc) (0)
182
183/*
184 * When online repair is not built into the kernel, we still want to attempt
185 * the repair so that the stub xrep_attempt below will return EOPNOTSUPP.
186 */
187static inline bool xrep_will_attempt(const struct xfs_scrub *sc)
188{
189 return (sc->sm->sm_flags & XFS_SCRUB_IFLAG_FORCE_REBUILD) ||
190 xchk_needs_repair(sc->sm);
191}
192
193static inline int
194xrep_attempt(
195 struct xfs_scrub *sc,
196 struct xchk_stats_run *run)
197{
198 return -EOPNOTSUPP;
199}
200
201static inline void xrep_failure(struct xfs_mount *mp) {}
202
203static inline xfs_extlen_t
204xrep_calc_ag_resblks(
205 struct xfs_scrub *sc)
206{
207 return 0;
208}
209
210#define xrep_calc_rtgroup_resblks xrep_calc_ag_resblks
211
212static inline int
213xrep_reset_perag_resv(
214 struct xfs_scrub *sc)
215{
216 if (!(sc->flags & XREP_RESET_PERAG_RESV))
217 return 0;
218
219 ASSERT(0);
220 return -EOPNOTSUPP;
221}
222
223/* repair setup functions for no-repair */
224static inline int
225xrep_setup_nothing(
226 struct xfs_scrub *sc)
227{
228 return 0;
229}
230#define xrep_setup_ag_allocbt xrep_setup_nothing
231#define xrep_setup_ag_rmapbt xrep_setup_nothing
232#define xrep_setup_ag_refcountbt xrep_setup_nothing
233#define xrep_setup_xattr xrep_setup_nothing
234#define xrep_setup_directory xrep_setup_nothing
235#define xrep_setup_parent xrep_setup_nothing
236#define xrep_setup_nlinks xrep_setup_nothing
237#define xrep_setup_dirtree xrep_setup_nothing
238#define xrep_setup_metapath xrep_setup_nothing
239#define xrep_setup_rtrmapbt xrep_setup_nothing
240#define xrep_setup_rtrefcountbt xrep_setup_nothing
241
242#define xrep_setup_inode(sc, imap) ((void)0)
243
244static inline int xrep_setup_symlink(struct xfs_scrub *sc, unsigned int *x)
245{
246 return 0;
247}
248
249#define xrep_revalidate_allocbt (NULL)
250#define xrep_revalidate_iallocbt (NULL)
251
252#define xrep_probe xrep_notsupported
253#define xrep_superblock xrep_notsupported
254#define xrep_agf xrep_notsupported
255#define xrep_agfl xrep_notsupported
256#define xrep_agi xrep_notsupported
257#define xrep_allocbt xrep_notsupported
258#define xrep_iallocbt xrep_notsupported
259#define xrep_rmapbt xrep_notsupported
260#define xrep_refcountbt xrep_notsupported
261#define xrep_inode xrep_notsupported
262#define xrep_bmap_data xrep_notsupported
263#define xrep_bmap_attr xrep_notsupported
264#define xrep_bmap_cow xrep_notsupported
265#define xrep_rtbitmap xrep_notsupported
266#define xrep_quota xrep_notsupported
267#define xrep_quotacheck xrep_notsupported
268#define xrep_nlinks xrep_notsupported
269#define xrep_fscounters xrep_notsupported
270#define xrep_rtsummary xrep_notsupported
271#define xrep_xattr xrep_notsupported
272#define xrep_directory xrep_notsupported
273#define xrep_parent xrep_notsupported
274#define xrep_symlink xrep_notsupported
275#define xrep_dirtree xrep_notsupported
276#define xrep_metapath xrep_notsupported
277#define xrep_rgsuperblock xrep_notsupported
278#define xrep_rtrmapbt xrep_notsupported
279#define xrep_rtrefcountbt xrep_notsupported
280
281#endif /* CONFIG_XFS_ONLINE_REPAIR */
282
283#endif /* __XFS_SCRUB_REPAIR_H__ */