Commit | Line | Data |
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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 | ||
20 | typedef dm_block_t __bitwise__ dm_oblock_t; | |
21 | typedef uint32_t __bitwise__ dm_cblock_t; | |
c6b4fcba JT |
22 | |
23 | static inline dm_oblock_t to_oblock(dm_block_t b) | |
24 | { | |
25 | return (__force dm_oblock_t) b; | |
26 | } | |
27 | ||
28 | static inline dm_block_t from_oblock(dm_oblock_t b) | |
29 | { | |
30 | return (__force dm_block_t) b; | |
31 | } | |
32 | ||
33 | static inline dm_cblock_t to_cblock(uint32_t b) | |
34 | { | |
35 | return (__force dm_cblock_t) b; | |
36 | } | |
37 | ||
38 | static inline uint32_t from_cblock(dm_cblock_t b) | |
39 | { | |
40 | return (__force uint32_t) b; | |
41 | } | |
42 | ||
c6b4fcba | 43 | #endif /* DM_CACHE_BLOCK_TYPES_H */ |