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
|
#ifndef _BCACHEFS_REPLICAS_H
#define _BCACHEFS_REPLICAS_H
#include "eytzinger.h"
#include "replicas_types.h"
void bch2_replicas_entry_to_text(struct printbuf *,
struct bch_replicas_entry *);
void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
static inline struct bch_replicas_entry *
cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
{
return (void *) r->entries + r->entry_size * i;
}
int bch2_replicas_entry_idx(struct bch_fs *,
struct bch_replicas_entry *);
void bch2_devlist_to_replicas(struct bch_replicas_entry *,
enum bch_data_type,
struct bch_devs_list);
bool bch2_replicas_marked(struct bch_fs *,
struct bch_replicas_entry *, bool);
int bch2_mark_replicas(struct bch_fs *,
struct bch_replicas_entry *);
bool bch2_bkey_replicas_marked_locked(struct bch_fs *,
struct bkey_s_c, bool);
bool bch2_bkey_replicas_marked(struct bch_fs *,
struct bkey_s_c, bool);
int bch2_mark_bkey_replicas(struct bch_fs *, struct bkey_s_c);
static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
unsigned dev)
{
e->data_type = BCH_DATA_CACHED;
e->nr_devs = 1;
e->nr_required = 1;
e->devs[0] = dev;
}
struct replicas_status {
struct {
int redundancy;
unsigned nr_offline;
} replicas[BCH_DATA_NR];
};
struct replicas_status __bch2_replicas_status(struct bch_fs *,
struct bch_devs_mask);
struct replicas_status bch2_replicas_status(struct bch_fs *);
bool bch2_have_enough_devs(struct replicas_status, unsigned);
int bch2_replicas_online(struct bch_fs *, bool);
unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
int bch2_replicas_gc_end(struct bch_fs *, int);
int bch2_replicas_gc_start(struct bch_fs *, unsigned);
int bch2_replicas_set_usage(struct bch_fs *,
struct bch_replicas_entry *,
u64);
#define for_each_cpu_replicas_entry(_r, _i) \
for (_i = (_r)->entries; \
(void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
_i = (void *) (_i) + (_r)->entry_size)
/* iterate over superblock replicas - used by userspace tools: */
#define replicas_entry_bytes(_i) \
(offsetof(typeof(*(_i)), devs) + (_i)->nr_devs)
#define replicas_entry_next(_i) \
((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
#define for_each_replicas_entry(_r, _i) \
for (_i = (_r)->entries; \
(void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
(_i) = replicas_entry_next(_i))
#define for_each_replicas_entry_v0(_r, _i) \
for (_i = (_r)->entries; \
(void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
(_i) = replicas_entry_next(_i))
int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
int bch2_fs_replicas_init(struct bch_fs *);
#endif /* _BCACHEFS_REPLICAS_H */
|
