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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_REPLICAS_H
#define _BCACHEFS_REPLICAS_H
#include "eytzinger.h"
#include "replicas_types.h"
void bch2_replicas_entry_sort(struct bch_replicas_entry *);
void bch2_replicas_entry_to_text(struct printbuf *,
struct bch_replicas_entry *);
void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
static inline struct bch_replicas_entry *
cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
{
return (void *) r->entries + r->entry_size * i;
}
int bch2_replicas_entry_idx(struct bch_fs *,
struct bch_replicas_entry *);
void bch2_devlist_to_replicas(struct bch_replicas_entry *,
enum bch_data_type,
struct bch_devs_list);
bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry *);
int bch2_mark_replicas(struct bch_fs *,
struct bch_replicas_entry *);
struct replicas_delta {
s64 delta;
struct bch_replicas_entry r;
} __packed;
struct replicas_delta_list {
unsigned size;
unsigned used;
struct {} memset_start;
u64 nr_inodes;
u64 persistent_reserved[BCH_REPLICAS_MAX];
struct {} memset_end;
struct replicas_delta d[0];
};
static inline struct replicas_delta *
replicas_delta_next(struct replicas_delta *d)
{
return (void *) d + replicas_entry_bytes(&d->r) + 8;
}
int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
unsigned dev)
{
e->data_type = BCH_DATA_cached;
e->nr_devs = 1;
e->nr_required = 1;
e->devs[0] = dev;
}
bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
unsigned, bool);
unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
int bch2_replicas_gc_end(struct bch_fs *, int);
int bch2_replicas_gc_start(struct bch_fs *, unsigned);
int bch2_replicas_gc2(struct bch_fs *);
int bch2_replicas_set_usage(struct bch_fs *,
struct bch_replicas_entry *,
u64);
#define for_each_cpu_replicas_entry(_r, _i) \
for (_i = (_r)->entries; \
(void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
_i = (void *) (_i) + (_r)->entry_size)
/* iterate over superblock replicas - used by userspace tools: */
#define replicas_entry_next(_i) \
((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
#define for_each_replicas_entry(_r, _i) \
for (_i = (_r)->entries; \
(void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
(_i) = replicas_entry_next(_i))
#define for_each_replicas_entry_v0(_r, _i) \
for (_i = (_r)->entries; \
(void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
(_i) = replicas_entry_next(_i))
int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
void bch2_fs_replicas_exit(struct bch_fs *);
int bch2_fs_replicas_init(struct bch_fs *);
#endif /* _BCACHEFS_REPLICAS_H */
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