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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _BCACHEFS_REPLICAS_FORMAT_H3#define _BCACHEFS_REPLICAS_FORMAT_H4 5struct bch_replicas_entry_v0 {6 __u8 data_type;7 __u8 nr_devs;8 __u8 devs[] __counted_by(nr_devs);9} __packed;10 11struct bch_sb_field_replicas_v0 {12 struct bch_sb_field field;13 struct bch_replicas_entry_v0 entries[];14} __packed __aligned(8);15 16struct bch_replicas_entry_v1 {17 __u8 data_type;18 __u8 nr_devs;19 __u8 nr_required;20 __u8 devs[] __counted_by(nr_devs);21} __packed;22 23struct bch_sb_field_replicas {24 struct bch_sb_field field;25 struct bch_replicas_entry_v1 entries[];26} __packed __aligned(8);27 28#define replicas_entry_bytes(_i) \29 (offsetof(typeof(*(_i)), devs) + (_i)->nr_devs)30 31#define replicas_entry_add_dev(e, d) ({ \32 (e)->nr_devs++; \33 (e)->devs[(e)->nr_devs - 1] = (d); \34})35 36#endif /* _BCACHEFS_REPLICAS_FORMAT_H */37