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. */
10enum 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 WRITE_LIFE_HINT_NR,
18} __packed;
19
20/* Sparse ignores __packed annotations on enums, hence the #ifndef below. */
21#ifndef __CHECKER__
22static_assert(sizeof(enum rw_hint) == 1);
23#endif
24
25#endif /* _LINUX_RW_HINT_H */
26