1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_REPLICAS_H
3 #define _BCACHEFS_REPLICAS_H
7 #include "replicas_types.h"
9 void bch2_replicas_entry_sort(struct bch_replicas_entry *);
10 void bch2_replicas_entry_to_text(struct printbuf *,
11 struct bch_replicas_entry *);
12 void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
14 static inline struct bch_replicas_entry *
15 cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
17 return (void *) r->entries + r->entry_size * i;
20 int bch2_replicas_entry_idx(struct bch_fs *,
21 struct bch_replicas_entry *);
23 void bch2_devlist_to_replicas(struct bch_replicas_entry *,
25 struct bch_devs_list);
26 bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry *);
27 int bch2_mark_replicas(struct bch_fs *,
28 struct bch_replicas_entry *);
30 static inline struct replicas_delta *
31 replicas_delta_next(struct replicas_delta *d)
33 return (void *) d + replicas_entry_bytes(&d->r) + 8;
36 int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
38 void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
40 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
43 e->data_type = BCH_DATA_cached;
49 bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
52 unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);
53 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
55 int bch2_replicas_gc_end(struct bch_fs *, int);
56 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
57 int bch2_replicas_gc2(struct bch_fs *);
59 int bch2_replicas_set_usage(struct bch_fs *,
60 struct bch_replicas_entry *,
63 #define for_each_cpu_replicas_entry(_r, _i) \
64 for (_i = (_r)->entries; \
65 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
66 _i = (void *) (_i) + (_r)->entry_size)
68 /* iterate over superblock replicas - used by userspace tools: */
70 #define replicas_entry_next(_i) \
71 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
73 #define for_each_replicas_entry(_r, _i) \
74 for (_i = (_r)->entries; \
75 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
76 (_i) = replicas_entry_next(_i))
78 #define for_each_replicas_entry_v0(_r, _i) \
79 for (_i = (_r)->entries; \
80 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
81 (_i) = replicas_entry_next(_i))
83 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
85 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
86 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
88 void bch2_fs_replicas_exit(struct bch_fs *);
89 int bch2_fs_replicas_init(struct bch_fs *);
91 #endif /* _BCACHEFS_REPLICAS_H */