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