From e54def4ad8144ab15f826416e2e0f290ef1901b4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 19 Jun 2024 23:00:30 +0200 Subject: Adding upstream version 6.9.2. Signed-off-by: Daniel Baumann --- drivers/md/dm-vdo/indexer/index-layout.h | 43 ++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 drivers/md/dm-vdo/indexer/index-layout.h (limited to 'drivers/md/dm-vdo/indexer/index-layout.h') diff --git a/drivers/md/dm-vdo/indexer/index-layout.h b/drivers/md/dm-vdo/indexer/index-layout.h new file mode 100644 index 0000000000..e9ac6f4302 --- /dev/null +++ b/drivers/md/dm-vdo/indexer/index-layout.h @@ -0,0 +1,43 @@ +/* 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 */ -- cgit v1.2.3