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1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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 */ |