1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_REPLICAS_H
3 #define _BCACHEFS_REPLICAS_H
6 #include "replicas_types.h"
8 #include <linux/eytzinger.h>
10 void bch2_replicas_entry_sort(struct bch_replicas_entry_v1 *);
11 void bch2_replicas_entry_to_text(struct printbuf *,
12 struct bch_replicas_entry_v1 *);
13 int bch2_replicas_entry_validate(struct bch_replicas_entry_v1 *,
14 struct bch_sb *, struct printbuf *);
15 void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
17 static inline struct bch_replicas_entry_v1 *
18 cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
20 return (void *) r->entries + r->entry_size * i;
23 int bch2_replicas_entry_idx(struct bch_fs *,
24 struct bch_replicas_entry_v1 *);
26 void bch2_devlist_to_replicas(struct bch_replicas_entry_v1 *,
28 struct bch_devs_list);
29 bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry_v1 *);
30 int bch2_mark_replicas(struct bch_fs *,
31 struct bch_replicas_entry_v1 *);
33 static inline struct replicas_delta *
34 replicas_delta_next(struct replicas_delta *d)
36 return (void *) d + replicas_entry_bytes(&d->r) + 8;
39 int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
41 void bch2_bkey_to_replicas(struct bch_replicas_entry_v1 *, struct bkey_s_c);
43 static inline void bch2_replicas_entry_cached(struct bch_replicas_entry_v1 *e,
46 e->data_type = BCH_DATA_cached;
52 bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
55 unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);
56 unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
58 int bch2_replicas_gc_end(struct bch_fs *, int);
59 int bch2_replicas_gc_start(struct bch_fs *, unsigned);
60 int bch2_replicas_gc2(struct bch_fs *);
62 int bch2_replicas_set_usage(struct bch_fs *,
63 struct bch_replicas_entry_v1 *,
66 #define for_each_cpu_replicas_entry(_r, _i) \
67 for (_i = (_r)->entries; \
68 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
69 _i = (void *) (_i) + (_r)->entry_size)
71 /* iterate over superblock replicas - used by userspace tools: */
73 #define replicas_entry_next(_i) \
74 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
76 #define for_each_replicas_entry(_r, _i) \
77 for (_i = (_r)->entries; \
78 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
79 (_i) = replicas_entry_next(_i))
81 #define for_each_replicas_entry_v0(_r, _i) \
82 for (_i = (_r)->entries; \
83 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
84 (_i) = replicas_entry_next(_i))
86 int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
88 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
89 extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
91 void bch2_fs_replicas_exit(struct bch_fs *);
92 int bch2_fs_replicas_init(struct bch_fs *);
94 #endif /* _BCACHEFS_REPLICAS_H */