]> Git Repo - J-linux.git/blob - fs/bcachefs/replicas.h
Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
[J-linux.git] / fs / bcachefs / replicas.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_REPLICAS_H
3 #define _BCACHEFS_REPLICAS_H
4
5 #include "bkey.h"
6 #include "eytzinger.h"
7 #include "replicas_types.h"
8
9 void bch2_replicas_entry_sort(struct bch_replicas_entry_v1 *);
10 void bch2_replicas_entry_to_text(struct printbuf *,
11                                  struct bch_replicas_entry_v1 *);
12 int bch2_replicas_entry_validate(struct bch_replicas_entry_v1 *,
13                                  struct bch_fs *, struct printbuf *);
14 void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
15
16 static inline struct bch_replicas_entry_v1 *
17 cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
18 {
19         return (void *) r->entries + r->entry_size * i;
20 }
21
22 int bch2_replicas_entry_idx(struct bch_fs *,
23                             struct bch_replicas_entry_v1 *);
24
25 void bch2_devlist_to_replicas(struct bch_replicas_entry_v1 *,
26                               enum bch_data_type,
27                               struct bch_devs_list);
28
29 bool bch2_replicas_marked_locked(struct bch_fs *,
30                           struct bch_replicas_entry_v1 *);
31 bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry_v1 *);
32 int bch2_mark_replicas(struct bch_fs *,
33                        struct bch_replicas_entry_v1 *);
34
35 void bch2_bkey_to_replicas(struct bch_replicas_entry_v1 *, struct bkey_s_c);
36
37 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry_v1 *e,
38                                               unsigned dev)
39 {
40         e->data_type    = BCH_DATA_cached;
41         e->nr_devs      = 1;
42         e->nr_required  = 1;
43         e->devs[0]      = dev;
44 }
45
46 bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
47                            unsigned, bool);
48
49 unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);
50 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
51
52 int bch2_replicas_gc_end(struct bch_fs *, int);
53 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
54 int bch2_replicas_gc2(struct bch_fs *);
55
56 #define for_each_cpu_replicas_entry(_r, _i)                             \
57         for (_i = (_r)->entries;                                        \
58              (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
59              _i = (void *) (_i) + (_r)->entry_size)
60
61 /* iterate over superblock replicas - used by userspace tools: */
62
63 #define replicas_entry_next(_i)                                         \
64         ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
65
66 #define for_each_replicas_entry(_r, _i)                                 \
67         for (_i = (_r)->entries;                                        \
68              (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
69              (_i) = replicas_entry_next(_i))
70
71 #define for_each_replicas_entry_v0(_r, _i)                              \
72         for (_i = (_r)->entries;                                        \
73              (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
74              (_i) = replicas_entry_next(_i))
75
76 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
77
78 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
79 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
80
81 void bch2_fs_replicas_exit(struct bch_fs *);
82
83 #endif /* _BCACHEFS_REPLICAS_H */
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