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_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_sb *, struct printbuf *);
14 void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
16 static inline struct bch_replicas_entry_v1 *
17 cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
19 return (void *) r->entries + r->entry_size * i;
22 int bch2_replicas_entry_idx(struct bch_fs *,
23 struct bch_replicas_entry_v1 *);
25 void bch2_devlist_to_replicas(struct bch_replicas_entry_v1 *,
27 struct bch_devs_list);
28 bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry_v1 *);
29 int bch2_mark_replicas(struct bch_fs *,
30 struct bch_replicas_entry_v1 *);
32 static inline struct replicas_delta *
33 replicas_delta_next(struct replicas_delta *d)
35 return (void *) d + replicas_entry_bytes(&d->r) + 8;
38 int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
40 void bch2_bkey_to_replicas(struct bch_replicas_entry_v1 *, struct bkey_s_c);
42 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry_v1 *e,
45 e->data_type = BCH_DATA_cached;
51 bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
54 unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);
55 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
57 int bch2_replicas_gc_end(struct bch_fs *, int);
58 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
59 int bch2_replicas_gc2(struct bch_fs *);
61 int bch2_replicas_set_usage(struct bch_fs *,
62 struct bch_replicas_entry_v1 *,
65 #define for_each_cpu_replicas_entry(_r, _i) \
66 for (_i = (_r)->entries; \
67 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
68 _i = (void *) (_i) + (_r)->entry_size)
70 /* iterate over superblock replicas - used by userspace tools: */
72 #define replicas_entry_next(_i) \
73 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
75 #define for_each_replicas_entry(_r, _i) \
76 for (_i = (_r)->entries; \
77 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
78 (_i) = replicas_entry_next(_i))
80 #define for_each_replicas_entry_v0(_r, _i) \
81 for (_i = (_r)->entries; \
82 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
83 (_i) = replicas_entry_next(_i))
85 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
87 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
88 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
90 void bch2_fs_replicas_exit(struct bch_fs *);
91 int bch2_fs_replicas_init(struct bch_fs *);
93 #endif /* _BCACHEFS_REPLICAS_H */