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 struct replicas_delta {
32 struct bch_replicas_entry r;
35 struct replicas_delta_list {
39 struct {} memset_start;
41 u64 persistent_reserved[BCH_REPLICAS_MAX];
43 struct replicas_delta d[0];
46 static inline struct replicas_delta *
47 replicas_delta_next(struct replicas_delta *d)
49 return (void *) d + replicas_entry_bytes(&d->r) + 8;
52 int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
54 void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
56 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
59 e->data_type = BCH_DATA_cached;
65 bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
68 unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);
69 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
71 int bch2_replicas_gc_end(struct bch_fs *, int);
72 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
73 int bch2_replicas_gc2(struct bch_fs *);
75 int bch2_replicas_set_usage(struct bch_fs *,
76 struct bch_replicas_entry *,
79 #define for_each_cpu_replicas_entry(_r, _i) \
80 for (_i = (_r)->entries; \
81 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
82 _i = (void *) (_i) + (_r)->entry_size)
84 /* iterate over superblock replicas - used by userspace tools: */
86 #define replicas_entry_next(_i) \
87 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
89 #define for_each_replicas_entry(_r, _i) \
90 for (_i = (_r)->entries; \
91 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
92 (_i) = replicas_entry_next(_i))
94 #define for_each_replicas_entry_v0(_r, _i) \
95 for (_i = (_r)->entries; \
96 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
97 (_i) = replicas_entry_next(_i))
99 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
101 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
102 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
104 void bch2_fs_replicas_exit(struct bch_fs *);
105 int bch2_fs_replicas_init(struct bch_fs *);
107 #endif /* _BCACHEFS_REPLICAS_H */