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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright 2023 Red Hat4 */5 6#ifndef UDS_INDEX_LAYOUT_H7#define UDS_INDEX_LAYOUT_H8 9#include "config.h"10#include "indexer.h"11#include "io-factory.h"12 13/*14 * The index layout describes the format of the index on the underlying storage, and is responsible15 * for creating those structures when the index is first created. It also validates the index data16 * when loading a saved index, and updates it when saving the index.17 */18 19struct index_layout;20 21int __must_check uds_make_index_layout(struct uds_configuration *config, bool new_layout,22 struct index_layout **layout_ptr);23 24void uds_free_index_layout(struct index_layout *layout);25 26int __must_check uds_replace_index_layout_storage(struct index_layout *layout,27 struct block_device *bdev);28 29int __must_check uds_load_index_state(struct index_layout *layout,30 struct uds_index *index);31 32int __must_check uds_save_index_state(struct index_layout *layout,33 struct uds_index *index);34 35int __must_check uds_discard_open_chapter(struct index_layout *layout);36 37u64 __must_check uds_get_volume_nonce(struct index_layout *layout);38 39int __must_check uds_open_volume_bufio(struct index_layout *layout, size_t block_size,40 unsigned int reserved_buffers,41 struct dm_bufio_client **client_ptr);42 43#endif /* UDS_INDEX_LAYOUT_H */44