1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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2 | #ifndef _LINUX_RW_HINT_H |
3 | #define _LINUX_RW_HINT_H |
4 | |
5 | #include <linux/build_bug.h> |
6 | #include <linux/compiler_attributes.h> |
7 | #include <uapi/linux/fcntl.h> |
8 | |
9 | /* Block storage write lifetime hint values. */ |
10 | enum rw_hint { |
11 | WRITE_LIFE_NOT_SET = RWH_WRITE_LIFE_NOT_SET, |
12 | WRITE_LIFE_NONE = RWH_WRITE_LIFE_NONE, |
13 | WRITE_LIFE_SHORT = RWH_WRITE_LIFE_SHORT, |
14 | WRITE_LIFE_MEDIUM = RWH_WRITE_LIFE_MEDIUM, |
15 | WRITE_LIFE_LONG = RWH_WRITE_LIFE_LONG, |
16 | WRITE_LIFE_EXTREME = RWH_WRITE_LIFE_EXTREME, |
17 | } __packed; |
18 | |
19 | /* Sparse ignores __packed annotations on enums, hence the #ifndef below. */ |
20 | #ifndef __CHECKER__ |
21 | static_assert(sizeof(enum rw_hint) == 1); |
22 | #endif |
23 | |
24 | #endif /* _LINUX_RW_HINT_H */ |
25 |