projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| c6b4fcba JT |
1 | /* |
| 2 | * Copyright (C) 2012 Red Hat, Inc. | |
| 3 | * | |
| 4 | * This file is released under the GPL. | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef DM_CACHE_BLOCK_TYPES_H | |
| 8 | #define DM_CACHE_BLOCK_TYPES_H | |
| 9 | ||
| 10 | #include "persistent-data/dm-block-manager.h" | |
| 11 | ||
| 12 | /*----------------------------------------------------------------*/ | |
| 13 | ||
| 14 | /* | |
| 15 | * It's helpful to get sparse to differentiate between indexes into the | |
| 16 | * origin device, indexes into the cache device, and indexes into the | |
| 17 | * discard bitset. | |
| 18 | */ | |
| 19 | ||
| 9efeccac MT |
20 | typedef dm_block_t __bitwise dm_oblock_t; |
| 21 | typedef uint32_t __bitwise dm_cblock_t; | |
| 22 | typedef dm_block_t __bitwise dm_dblock_t; | |
| c6b4fcba JT |
23 | |
| 24 | static inline dm_oblock_t to_oblock(dm_block_t b) | |
| 25 | { | |
| 26 | return (__force dm_oblock_t) b; | |
| 27 | } | |
| 28 | ||
| 29 | static inline dm_block_t from_oblock(dm_oblock_t b) | |
| 30 | { | |
| 31 | return (__force dm_block_t) b; | |
| 32 | } | |
| 33 | ||
| 34 | static inline dm_cblock_t to_cblock(uint32_t b) | |
| 35 | { | |
| 36 | return (__force dm_cblock_t) b; | |
| 37 | } | |
| 38 | ||
| 39 | static inline uint32_t from_cblock(dm_cblock_t b) | |
| 40 | { | |
| 41 | return (__force uint32_t) b; | |
| 42 | } | |
| 43 | ||
| 1bad9bc4 JT |
44 | static inline dm_dblock_t to_dblock(dm_block_t b) |
| 45 | { | |
| 46 | return (__force dm_dblock_t) b; | |
| 47 | } | |
| 48 | ||
| 49 | static inline dm_block_t from_dblock(dm_dblock_t b) | |
| 50 | { | |
| 51 | return (__force dm_block_t) b; | |
| 52 | } | |
| 53 | ||
| c6b4fcba | 54 | #endif /* DM_CACHE_BLOCK_TYPES_H */ |