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_to_text(struct printbuf *,
9 struct bch_replicas_entry *);
10 void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
12 static inline struct bch_replicas_entry *
13 cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
15 return (void *) r->entries + r->entry_size * i;
18 int bch2_replicas_entry_idx(struct bch_fs *,
19 struct bch_replicas_entry *);
21 void bch2_devlist_to_replicas(struct bch_replicas_entry *,
23 struct bch_devs_list);
24 bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry *);
25 int bch2_mark_replicas(struct bch_fs *,
26 struct bch_replicas_entry *);
28 void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
29 bool bch2_bkey_replicas_marked(struct bch_fs *, struct bkey_s_c);
30 int bch2_mark_bkey_replicas(struct bch_fs *, struct bkey_s_c);
32 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
35 e->data_type = BCH_DATA_cached;
41 struct replicas_status {
45 } replicas[BCH_DATA_NR];
48 struct replicas_status __bch2_replicas_status(struct bch_fs *,
49 struct bch_devs_mask);
50 struct replicas_status bch2_replicas_status(struct bch_fs *);
51 bool bch2_have_enough_devs(struct replicas_status, unsigned);
53 int bch2_replicas_online(struct bch_fs *, bool);
54 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
56 int bch2_replicas_gc_end(struct bch_fs *, int);
57 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
58 int bch2_replicas_gc2(struct bch_fs *);
60 int bch2_replicas_set_usage(struct bch_fs *,
61 struct bch_replicas_entry *,
64 #define for_each_cpu_replicas_entry(_r, _i) \
65 for (_i = (_r)->entries; \
66 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
67 _i = (void *) (_i) + (_r)->entry_size)
69 /* iterate over superblock replicas - used by userspace tools: */
71 #define replicas_entry_next(_i) \
72 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
74 #define for_each_replicas_entry(_r, _i) \
75 for (_i = (_r)->entries; \
76 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
77 (_i) = replicas_entry_next(_i))
79 #define for_each_replicas_entry_v0(_r, _i) \
80 for (_i = (_r)->entries; \
81 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
82 (_i) = replicas_entry_next(_i))
84 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
86 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
87 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
89 int bch2_fs_replicas_init(struct bch_fs *);
91 #endif /* _BCACHEFS_REPLICAS_H */