1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2023 Red Hat 4 */ 5 6 #ifndef UDS_INDEX_LAYOUT_H 7 #define UDS_INDEX_LAYOUT_H 8 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 responsible 15 * for creating those structures when the index is first created. It also validates the index data 16 * when loading a saved index, and updates it when saving the index. 17 */ 18 19 struct index_layout; 20 21 int __must_check uds_make_index_layout(struct uds_configuration *config, bool new_layout, 22 struct index_layout **layout_ptr); 23 24 void uds_free_index_layout(struct index_layout *layout); 25 26 int __must_check uds_replace_index_layout_storage(struct index_layout *layout, 27 struct block_device *bdev); 28 29 int __must_check uds_load_index_state(struct index_layout *layout, 30 struct uds_index *index); 31 32 int __must_check uds_save_index_state(struct index_layout *layout, 33 struct uds_index *index); 34 35 int __must_check uds_discard_open_chapter(struct index_layout *layout); 36 37 u64 __must_check uds_get_volume_nonce(struct index_layout *layout); 38 39 int __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