1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_FCNTL_H 3#define _LINUX_FCNTL_H 4 5#include <linux/stat.h> 6#include <uapi/linux/fcntl.h> 7 8/* List of all valid flags for the open/openat flags argument: */ 9#define VALID_OPEN_FLAGS \ 10 (O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \ 11 O_APPEND | O_NDELAY | O_NONBLOCK | O_NDELAY | __O_SYNC | O_DSYNC | \ 12 FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \ 13 O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE) 14 15/* List of all valid flags for the how->upgrade_mask argument: */ 16#define VALID_UPGRADE_FLAGS \ 17 (UPGRADE_NOWRITE | UPGRADE_NOREAD) 18 19/* List of all valid flags for the how->resolve argument: */ 20#define VALID_RESOLVE_FLAGS \ 21 (RESOLVE_NO_XDEV | RESOLVE_NO_MAGICLINKS | RESOLVE_NO_SYMLINKS | \ 22 RESOLVE_BENEATH | RESOLVE_IN_ROOT) 23 24/* List of all open_how "versions". */ 25#define OPEN_HOW_SIZE_VER0 24 /* sizeof first published struct */ 26#define OPEN_HOW_SIZE_LATEST OPEN_HOW_SIZE_VER0 27 28#ifndef force_o_largefile 29#define force_o_largefile() (!IS_ENABLED(CONFIG_ARCH_32BIT_OFF_T)) 30#endif 31 32#if BITS_PER_LONG == 32 33#define IS_GETLK32(cmd) ((cmd) == F_GETLK) 34#define IS_SETLK32(cmd) ((cmd) == F_SETLK) 35#define IS_SETLKW32(cmd) ((cmd) == F_SETLKW) 36#define IS_GETLK64(cmd) ((cmd) == F_GETLK64) 37#define IS_SETLK64(cmd) ((cmd) == F_SETLK64) 38#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW64) 39#else 40#define IS_GETLK32(cmd) (0) 41#define IS_SETLK32(cmd) (0) 42#define IS_SETLKW32(cmd) (0) 43#define IS_GETLK64(cmd) ((cmd) == F_GETLK) 44#define IS_SETLK64(cmd) ((cmd) == F_SETLK) 45#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW) 46#endif /* BITS_PER_LONG == 32 */ 47 48#define IS_GETLK(cmd) (IS_GETLK32(cmd) || IS_GETLK64(cmd)) 49#define IS_SETLK(cmd) (IS_SETLK32(cmd) || IS_SETLK64(cmd)) 50#define IS_SETLKW(cmd) (IS_SETLKW32(cmd) || IS_SETLKW64(cmd)) 51 52#endif 53