1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
#include "bcachefs.h"
#include "bkey_methods.h"
#include "btree_types.h"
#include "alloc_background.h"
#include "dirent.h"
#include "error.h"
#include "extents.h"
#include "inode.h"
#include "quota.h"
#include "xattr.h"
const struct bkey_ops bch2_bkey_ops[] = {
[BKEY_TYPE_EXTENTS] = bch2_bkey_extent_ops,
[BKEY_TYPE_INODES] = bch2_bkey_inode_ops,
[BKEY_TYPE_DIRENTS] = bch2_bkey_dirent_ops,
[BKEY_TYPE_XATTRS] = bch2_bkey_xattr_ops,
[BKEY_TYPE_ALLOC] = bch2_bkey_alloc_ops,
[BKEY_TYPE_QUOTAS] = bch2_bkey_quota_ops,
[BKEY_TYPE_BTREE] = bch2_bkey_btree_ops,
};
const char *bch2_bkey_val_invalid(struct bch_fs *c, enum bkey_type type,
struct bkey_s_c k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
switch (k.k->type) {
case KEY_TYPE_DELETED:
case KEY_TYPE_DISCARD:
return NULL;
case KEY_TYPE_ERROR:
return bkey_val_bytes(k.k) != 0
? "value size should be zero"
: NULL;
case KEY_TYPE_COOKIE:
return bkey_val_bytes(k.k) != sizeof(struct bch_cookie)
? "incorrect value size"
: NULL;
default:
if (k.k->type < KEY_TYPE_GENERIC_NR)
return "invalid type";
return ops->key_invalid(c, k);
}
}
const char *__bch2_bkey_invalid(struct bch_fs *c, enum bkey_type type,
struct bkey_s_c k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
if (k.k->u64s < BKEY_U64s)
return "u64s too small";
if (!ops->is_extents) {
if (k.k->size)
return "nonzero size field";
} else {
if ((k.k->size == 0) != bkey_deleted(k.k))
return "bad size field";
}
if (ops->is_extents &&
!k.k->size &&
!bkey_deleted(k.k))
return "zero size field";
if (k.k->p.snapshot)
return "nonzero snapshot";
if (type != BKEY_TYPE_BTREE &&
!bkey_cmp(k.k->p, POS_MAX))
return "POS_MAX key";
return NULL;
}
const char *bch2_bkey_invalid(struct bch_fs *c, enum bkey_type type,
struct bkey_s_c k)
{
return __bch2_bkey_invalid(c, type, k) ?:
bch2_bkey_val_invalid(c, type, k);
}
const char *bch2_bkey_in_btree_node(struct btree *b, struct bkey_s_c k)
{
if (bkey_cmp(bkey_start_pos(k.k), b->data->min_key) < 0)
return "key before start of btree node";
if (bkey_cmp(k.k->p, b->data->max_key) > 0)
return "key past end of btree node";
return NULL;
}
void bch2_bkey_debugcheck(struct bch_fs *c, struct btree *b, struct bkey_s_c k)
{
enum bkey_type type = btree_node_type(b);
const struct bkey_ops *ops = &bch2_bkey_ops[type];
const char *invalid;
BUG_ON(!k.k->u64s);
invalid = bch2_bkey_invalid(c, type, k) ?:
bch2_bkey_in_btree_node(b, k);
if (invalid) {
char buf[160];
bch2_bkey_val_to_text(c, type, buf, sizeof(buf), k);
bch2_fs_bug(c, "invalid bkey %s: %s", buf, invalid);
return;
}
if (k.k->type >= KEY_TYPE_GENERIC_NR &&
ops->key_debugcheck)
ops->key_debugcheck(c, b, k);
}
#define p(...) (out += scnprintf(out, end - out, __VA_ARGS__))
int bch2_bpos_to_text(char *buf, size_t size, struct bpos pos)
{
char *out = buf, *end = buf + size;
if (!bkey_cmp(pos, POS_MIN))
p("POS_MIN");
else if (!bkey_cmp(pos, POS_MAX))
p("POS_MAX");
else
p("%llu:%llu", pos.inode, pos.offset);
return out - buf;
}
int bch2_bkey_to_text(char *buf, size_t size, const struct bkey *k)
{
char *out = buf, *end = buf + size;
p("u64s %u type %u ", k->u64s, k->type);
out += bch2_bpos_to_text(out, end - out, k->p);
p(" snap %u len %u ver %llu", k->p.snapshot, k->size, k->version.lo);
return out - buf;
}
int bch2_val_to_text(struct bch_fs *c, enum bkey_type type,
char *buf, size_t size, struct bkey_s_c k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
char *out = buf, *end = buf + size;
switch (k.k->type) {
case KEY_TYPE_DELETED:
p(" deleted");
break;
case KEY_TYPE_DISCARD:
p(" discard");
break;
case KEY_TYPE_ERROR:
p(" error");
break;
case KEY_TYPE_COOKIE:
p(" cookie");
break;
default:
if (k.k->type >= KEY_TYPE_GENERIC_NR && ops->val_to_text)
out += ops->val_to_text(c, out, end - out, k);
break;
}
return out - buf;
}
int bch2_bkey_val_to_text(struct bch_fs *c, enum bkey_type type,
char *buf, size_t size, struct bkey_s_c k)
{
char *out = buf, *end = buf + size;
out += bch2_bkey_to_text(out, end - out, k.k);
out += scnprintf(out, end - out, ": ");
out += bch2_val_to_text(c, type, out, end - out, k);
return out - buf;
}
void bch2_bkey_swab(enum bkey_type type,
const struct bkey_format *f,
struct bkey_packed *k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
bch2_bkey_swab_key(f, k);
if (ops->swab)
ops->swab(f, k);
}
|
