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 */
2#ifndef _BCACHEFS_RECOVERY_PASSES_FORMAT_H
3#define _BCACHEFS_RECOVERY_PASSES_FORMAT_H
4
5#define PASS_SILENT BIT(0)
6#define PASS_FSCK BIT(1)
7#define PASS_UNCLEAN BIT(2)
8#define PASS_ALWAYS BIT(3)
9#define PASS_ONLINE BIT(4)
10#define PASS_ALLOC BIT(5)
11#define PASS_FSCK_ALLOC (PASS_FSCK|PASS_ALLOC)
12
13#ifdef CONFIG_BCACHEFS_DEBUG
14#define PASS_FSCK_DEBUG BIT(1)
15#else
16#define PASS_FSCK_DEBUG 0
17#endif
18
19/*
20 * Passes may be reordered, but the second field is a persistent identifier and
21 * must never change:
22 */
23#define BCH_RECOVERY_PASSES() \
24 x(recovery_pass_empty, 41, PASS_SILENT) \
25 x(scan_for_btree_nodes, 37, 0) \
26 x(check_topology, 4, 0) \
27 x(accounting_read, 39, PASS_ALWAYS) \
28 x(alloc_read, 0, PASS_ALWAYS) \
29 x(stripes_read, 1, 0) \
30 x(initialize_subvolumes, 2, 0) \
31 x(snapshots_read, 3, PASS_ALWAYS) \
32 x(check_allocations, 5, PASS_FSCK_ALLOC) \
33 x(trans_mark_dev_sbs, 6, PASS_ALWAYS|PASS_SILENT|PASS_ALLOC) \
34 x(fs_journal_alloc, 7, PASS_ALWAYS|PASS_SILENT|PASS_ALLOC) \
35 x(set_may_go_rw, 8, PASS_ALWAYS|PASS_SILENT) \
36 x(journal_replay, 9, PASS_ALWAYS) \
37 x(check_alloc_info, 10, PASS_ONLINE|PASS_FSCK_ALLOC) \
38 x(check_lrus, 11, PASS_ONLINE|PASS_FSCK_ALLOC) \
39 x(check_btree_backpointers, 12, PASS_ONLINE|PASS_FSCK_ALLOC) \
40 x(check_backpointers_to_extents, 13, PASS_ONLINE|PASS_FSCK_DEBUG) \
41 x(check_extents_to_backpointers, 14, PASS_ONLINE|PASS_FSCK_ALLOC) \
42 x(check_alloc_to_lru_refs, 15, PASS_ONLINE|PASS_FSCK_ALLOC) \
43 x(fs_freespace_init, 16, PASS_ALWAYS|PASS_SILENT) \
44 x(bucket_gens_init, 17, 0) \
45 x(reconstruct_snapshots, 38, 0) \
46 x(check_snapshot_trees, 18, PASS_ONLINE|PASS_FSCK) \
47 x(check_snapshots, 19, PASS_ONLINE|PASS_FSCK) \
48 x(check_subvols, 20, PASS_ONLINE|PASS_FSCK) \
49 x(check_subvol_children, 35, PASS_ONLINE|PASS_FSCK) \
50 x(delete_dead_snapshots, 21, PASS_ONLINE|PASS_FSCK) \
51 x(fs_upgrade_for_subvolumes, 22, 0) \
52 x(check_inodes, 24, PASS_FSCK) \
53 x(check_extents, 25, PASS_FSCK) \
54 x(check_indirect_extents, 26, PASS_ONLINE|PASS_FSCK) \
55 x(check_dirents, 27, PASS_FSCK) \
56 x(check_xattrs, 28, PASS_FSCK) \
57 x(check_root, 29, PASS_ONLINE|PASS_FSCK) \
58 x(check_unreachable_inodes, 40, PASS_FSCK) \
59 x(check_subvolume_structure, 36, PASS_ONLINE|PASS_FSCK) \
60 x(check_directory_structure, 30, PASS_ONLINE|PASS_FSCK) \
61 x(check_nlinks, 31, PASS_FSCK) \
62 x(check_rebalance_work, 43, PASS_ONLINE|PASS_FSCK) \
63 x(resume_logged_ops, 23, PASS_ALWAYS) \
64 x(delete_dead_inodes, 32, PASS_ALWAYS) \
65 x(fix_reflink_p, 33, 0) \
66 x(set_fs_needs_rebalance, 34, 0) \
67 x(lookup_root_inode, 42, PASS_ALWAYS|PASS_SILENT)
68
69/* We normally enumerate recovery passes in the order we run them: */
70enum bch_recovery_pass {
71#define x(n, id, when) BCH_RECOVERY_PASS_##n,
72 BCH_RECOVERY_PASSES()
73#undef x
74 BCH_RECOVERY_PASS_NR
75};
76
77/* But we also need stable identifiers that can be used in the superblock */
78enum bch_recovery_pass_stable {
79#define x(n, id, when) BCH_RECOVERY_PASS_STABLE_##n = id,
80 BCH_RECOVERY_PASSES()
81#undef x
82};
83
84struct recovery_pass_entry {
85 __le64 last_run;
86 __le32 last_runtime;
87 __le32 flags;
88};
89
90LE32_BITMASK(BCH_RECOVERY_PASS_NO_RATELIMIT, struct recovery_pass_entry, flags, 0, 1)
91
92struct bch_sb_field_recovery_passes {
93 struct bch_sb_field field;
94 struct recovery_pass_entry start[];
95};
96
97static inline unsigned
98recovery_passes_nr_entries(struct bch_sb_field_recovery_passes *r)
99{
100 return r
101 ? ((vstruct_end(&r->field) - (void *) &r->start[0]) /
102 sizeof(struct recovery_pass_entry))
103 : 0;
104}
105
106#endif /* _BCACHEFS_RECOVERY_PASSES_FORMAT_H */