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