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_sort(struct bch_replicas_entry *);
9 void bch2_replicas_entry_to_text(struct printbuf *,
10 struct bch_replicas_entry *);
11 void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
13 static inline struct bch_replicas_entry *
14 cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
16 return (void *) r->entries + r->entry_size * i;
19 int bch2_replicas_entry_idx(struct bch_fs *,
20 struct bch_replicas_entry *);
22 void bch2_devlist_to_replicas(struct bch_replicas_entry *,
24 struct bch_devs_list);
25 bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry *);
26 int bch2_mark_replicas(struct bch_fs *,
27 struct bch_replicas_entry *);
29 struct replicas_delta {
31 struct bch_replicas_entry r;
34 struct replicas_delta_list {
38 struct {} memset_start;
40 u64 persistent_reserved[BCH_REPLICAS_MAX];
42 struct replicas_delta d[0];
45 static inline struct replicas_delta *
46 replicas_delta_next(struct replicas_delta *d)
48 return (void *) d + replicas_entry_bytes(&d->r) + 8;
51 int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
53 void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
55 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
58 e->data_type = BCH_DATA_cached;
64 bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
67 unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);
68 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
70 int bch2_replicas_gc_end(struct bch_fs *, int);
71 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
72 int bch2_replicas_gc2(struct bch_fs *);
74 int bch2_replicas_set_usage(struct bch_fs *,
75 struct bch_replicas_entry *,
78 #define for_each_cpu_replicas_entry(_r, _i) \
79 for (_i = (_r)->entries; \
80 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
81 _i = (void *) (_i) + (_r)->entry_size)
83 /* iterate over superblock replicas - used by userspace tools: */
85 #define replicas_entry_next(_i) \
86 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
88 #define for_each_replicas_entry(_r, _i) \
89 for (_i = (_r)->entries; \
90 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
91 (_i) = replicas_entry_next(_i))
93 #define for_each_replicas_entry_v0(_r, _i) \
94 for (_i = (_r)->entries; \
95 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
96 (_i) = replicas_entry_next(_i))
98 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
100 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
101 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
103 void bch2_fs_replicas_exit(struct bch_fs *);
104 int bch2_fs_replicas_init(struct bch_fs *);
106 #endif /* _BCACHEFS_REPLICAS_H */