rw_hint.h

 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 */