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
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