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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2012 Red Hat, Inc.4 *5 * This file is released under the GPL.6 */7 8#ifndef DM_CACHE_BLOCK_TYPES_H9#define DM_CACHE_BLOCK_TYPES_H10 11#include "persistent-data/dm-block-manager.h"12 13/*----------------------------------------------------------------*/14 15/*16 * It's helpful to get sparse to differentiate between indexes into the17 * origin device, indexes into the cache device, and indexes into the18 * discard bitset.19 */20 21typedef dm_block_t __bitwise dm_oblock_t;22typedef uint32_t __bitwise dm_cblock_t;23typedef dm_block_t __bitwise dm_dblock_t;24 25static inline dm_oblock_t to_oblock(dm_block_t b)26{27 return (__force dm_oblock_t) b;28}29 30static inline dm_block_t from_oblock(dm_oblock_t b)31{32 return (__force dm_block_t) b;33}34 35static inline dm_cblock_t to_cblock(uint32_t b)36{37 return (__force dm_cblock_t) b;38}39 40static inline uint32_t from_cblock(dm_cblock_t b)41{42 return (__force uint32_t) b;43}44 45static inline dm_dblock_t to_dblock(dm_block_t b)46{47 return (__force dm_dblock_t) b;48}49 50static inline dm_block_t from_dblock(dm_dblock_t b)51{52 return (__force dm_block_t) b;53}54 55#endif /* DM_CACHE_BLOCK_TYPES_H */56