1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_REPLICAS_H
3 #define _BCACHEFS_REPLICAS_H
6 #include "replicas_types.h"
8 void bch2_replicas_entry_to_text(struct printbuf *,
9 struct bch_replicas_entry *);
10 void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
12 static inline struct bch_replicas_entry *
13 cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
15 return (void *) r->entries + r->entry_size * i;
18 int bch2_replicas_entry_idx(struct bch_fs *,
19 struct bch_replicas_entry *);
21 void bch2_devlist_to_replicas(struct bch_replicas_entry *,
23 struct bch_devs_list);
24 bool bch2_replicas_marked(struct bch_fs *,
25 struct bch_replicas_entry *, bool);
26 int bch2_mark_replicas(struct bch_fs *,
27 struct bch_replicas_entry *);
29 bool bch2_bkey_replicas_marked_locked(struct bch_fs *,
30 struct bkey_s_c, bool);
31 void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
32 bool bch2_bkey_replicas_marked(struct bch_fs *,
33 struct bkey_s_c, bool);
34 int bch2_mark_bkey_replicas(struct bch_fs *, struct bkey_s_c);
36 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
39 e->data_type = BCH_DATA_CACHED;
45 struct replicas_status {
49 } replicas[BCH_DATA_NR];
52 struct replicas_status __bch2_replicas_status(struct bch_fs *,
53 struct bch_devs_mask);
54 struct replicas_status bch2_replicas_status(struct bch_fs *);
55 bool bch2_have_enough_devs(struct replicas_status, unsigned);
57 int bch2_replicas_online(struct bch_fs *, bool);
58 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
60 int bch2_replicas_gc_end(struct bch_fs *, int);
61 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
62 int bch2_replicas_gc2(struct bch_fs *);
64 int bch2_replicas_set_usage(struct bch_fs *,
65 struct bch_replicas_entry *,
68 #define for_each_cpu_replicas_entry(_r, _i) \
69 for (_i = (_r)->entries; \
70 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
71 _i = (void *) (_i) + (_r)->entry_size)
73 /* iterate over superblock replicas - used by userspace tools: */
75 #define replicas_entry_next(_i) \
76 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
78 #define for_each_replicas_entry(_r, _i) \
79 for (_i = (_r)->entries; \
80 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
81 (_i) = replicas_entry_next(_i))
83 #define for_each_replicas_entry_v0(_r, _i) \
84 for (_i = (_r)->entries; \
85 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
86 (_i) = replicas_entry_next(_i))
88 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
90 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
91 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
93 int bch2_fs_replicas_init(struct bch_fs *);
95 #endif /* _BCACHEFS_REPLICAS_H */