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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _BCACHEFS_REPLICAS_H3#define _BCACHEFS_REPLICAS_H4 5#include "bkey.h"6#include "eytzinger.h"7#include "replicas_types.h"8 9void bch2_replicas_entry_sort(struct bch_replicas_entry_v1 *);10void bch2_replicas_entry_to_text(struct printbuf *,11 struct bch_replicas_entry_v1 *);12int bch2_replicas_entry_validate(struct bch_replicas_entry_v1 *,13 struct bch_fs *, struct printbuf *);14void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);15 16static inline struct bch_replicas_entry_v1 *17cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)18{19 return (void *) r->entries + r->entry_size * i;20}21 22int bch2_replicas_entry_idx(struct bch_fs *,23 struct bch_replicas_entry_v1 *);24 25void bch2_devlist_to_replicas(struct bch_replicas_entry_v1 *,26 enum bch_data_type,27 struct bch_devs_list);28 29bool bch2_replicas_marked_locked(struct bch_fs *,30 struct bch_replicas_entry_v1 *);31bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry_v1 *);32int bch2_mark_replicas(struct bch_fs *,33 struct bch_replicas_entry_v1 *);34 35void bch2_bkey_to_replicas(struct bch_replicas_entry_v1 *, struct bkey_s_c);36 37static inline void bch2_replicas_entry_cached(struct bch_replicas_entry_v1 *e,38 unsigned dev)39{40 e->data_type = BCH_DATA_cached;41 e->nr_devs = 1;42 e->nr_required = 1;43 e->devs[0] = dev;44}45 46bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,47 unsigned, bool);48 49unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);50unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);51 52int bch2_replicas_gc_end(struct bch_fs *, int);53int bch2_replicas_gc_start(struct bch_fs *, unsigned);54int bch2_replicas_gc2(struct bch_fs *);55 56#define for_each_cpu_replicas_entry(_r, _i) \57 for (_i = (_r)->entries; \58 (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\59 _i = (void *) (_i) + (_r)->entry_size)60 61/* iterate over superblock replicas - used by userspace tools: */62 63#define replicas_entry_next(_i) \64 ((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))65 66#define for_each_replicas_entry(_r, _i) \67 for (_i = (_r)->entries; \68 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\69 (_i) = replicas_entry_next(_i))70 71#define for_each_replicas_entry_v0(_r, _i) \72 for (_i = (_r)->entries; \73 (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\74 (_i) = replicas_entry_next(_i))75 76int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);77 78extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;79extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;80 81void bch2_fs_replicas_exit(struct bch_fs *);82 83#endif /* _BCACHEFS_REPLICAS_H */84