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linux/drivers/md/dm-vdo/indexer/index-layout.h
Mike Snitzer 17b1a73fea dm vdo: move indexer files into sub-directory
The goal is to assist high-level understanding of which code is
conceptually specific to VDO's indexer.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04 15:07:55 -05:00

44 lines
1.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2023 Red Hat
*/
#ifndef UDS_INDEX_LAYOUT_H
#define UDS_INDEX_LAYOUT_H
#include "config.h"
#include "indexer.h"
#include "io-factory.h"
/*
* The index layout describes the format of the index on the underlying storage, and is responsible
* for creating those structures when the index is first created. It also validates the index data
* when loading a saved index, and updates it when saving the index.
*/
struct index_layout;
int __must_check uds_make_index_layout(struct uds_configuration *config, bool new_layout,
struct index_layout **layout_ptr);
void uds_free_index_layout(struct index_layout *layout);
int __must_check uds_replace_index_layout_storage(struct index_layout *layout,
struct block_device *bdev);
int __must_check uds_load_index_state(struct index_layout *layout,
struct uds_index *index);
int __must_check uds_save_index_state(struct index_layout *layout,
struct uds_index *index);
int __must_check uds_discard_open_chapter(struct index_layout *layout);
u64 __must_check uds_get_volume_nonce(struct index_layout *layout);
int __must_check uds_open_volume_bufio(struct index_layout *layout, size_t block_size,
unsigned int reserved_buffers,
struct dm_bufio_client **client_ptr);
#endif /* UDS_INDEX_LAYOUT_H */