1#ifndef _LINUX_FCNTL_H 2#define _LINUX_FCNTL_H 3 4#include <asm/fcntl.h> 5 6#define F_SETLEASE (F_LINUX_SPECIFIC_BASE + 0) 7#define F_GETLEASE (F_LINUX_SPECIFIC_BASE + 1) 8 9/* 10 * Cancel a blocking posix lock; internal use only until we expose an 11 * asynchronous lock api to userspace: 12 */ 13#define F_CANCELLK (F_LINUX_SPECIFIC_BASE + 5) 14 15/* Create a file descriptor with FD_CLOEXEC set. */ 16#define F_DUPFD_CLOEXEC (F_LINUX_SPECIFIC_BASE + 6) 17 18/* 19 * Request nofications on a directory. 20 * See below for events that may be notified. 21 */ 22#define F_NOTIFY (F_LINUX_SPECIFIC_BASE+2) 23 24/* 25 * Types of directory notifications that may be requested. 26 */ 27#define DN_ACCESS 0x00000001 /* File accessed */ 28#define DN_MODIFY 0x00000002 /* File modified */ 29#define DN_CREATE 0x00000004 /* File created */ 30#define DN_DELETE 0x00000008 /* File removed */ 31#define DN_RENAME 0x00000010 /* File renamed */ 32#define DN_ATTRIB 0x00000020 /* File changed attibutes */ 33#define DN_MULTISHOT 0x80000000 /* Don't remove notifier */ 34 35#define AT_FDCWD -100 /* Special value used to indicate 36 openat should use the current 37 working directory. */ 38#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */ 39#define AT_REMOVEDIR 0x200 /* Remove directory instead of 40 unlinking file. */ 41#define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */ 42 43#ifdef __KERNEL__ 44 45#ifndef force_o_largefile 46#define force_o_largefile() (BITS_PER_LONG != 32) 47#endif 48 49#if BITS_PER_LONG == 32 50#define IS_GETLK32(cmd) ((cmd) == F_GETLK) 51#define IS_SETLK32(cmd) ((cmd) == F_SETLK) 52#define IS_SETLKW32(cmd) ((cmd) == F_SETLKW) 53#define IS_GETLK64(cmd) ((cmd) == F_GETLK64) 54#define IS_SETLK64(cmd) ((cmd) == F_SETLK64) 55#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW64) 56#else 57#define IS_GETLK32(cmd) (0) 58#define IS_SETLK32(cmd) (0) 59#define IS_SETLKW32(cmd) (0) 60#define IS_GETLK64(cmd) ((cmd) == F_GETLK) 61#define IS_SETLK64(cmd) ((cmd) == F_SETLK) 62#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW) 63#endif /* BITS_PER_LONG == 32 */ 64 65#define IS_GETLK(cmd) (IS_GETLK32(cmd) || IS_GETLK64(cmd)) 66#define IS_SETLK(cmd) (IS_SETLK32(cmd) || IS_SETLK64(cmd)) 67#define IS_SETLKW(cmd) (IS_SETLKW32(cmd) || IS_SETLKW64(cmd)) 68 69#endif /* __KERNEL__ */ 70 71#endif 72