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 void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
30 bool bch2_bkey_replicas_marked(struct bch_fs *, struct bkey_s_c);
31 int bch2_mark_bkey_replicas(struct bch_fs *, struct bkey_s_c);
33 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
36 e->data_type = BCH_DATA_cached;
42 bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
45 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
47 int bch2_replicas_gc_end(struct bch_fs *, int);
48 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
49 int bch2_replicas_gc2(struct bch_fs *);
51 int bch2_replicas_set_usage(struct bch_fs *,
52 struct bch_replicas_entry *,
55 #define for_each_cpu_replicas_entry(_r, _i) \
56 for (_i = (_r)->entries; \
57 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
58 _i = (void *) (_i) + (_r)->entry_size)
60 /* iterate over superblock replicas - used by userspace tools: */
62 #define replicas_entry_next(_i) \
63 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
65 #define for_each_replicas_entry(_r, _i) \
66 for (_i = (_r)->entries; \
67 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
68 (_i) = replicas_entry_next(_i))
70 #define for_each_replicas_entry_v0(_r, _i) \
71 for (_i = (_r)->entries; \
72 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
73 (_i) = replicas_entry_next(_i))
75 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
77 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
78 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
80 int bch2_fs_replicas_init(struct bch_fs *);
82 #endif /* _BCACHEFS_REPLICAS_H */