1 #ifndef _ASM_GENERIC_FCNTL_H
2 #define _ASM_GENERIC_FCNTL_H
4 #include <linux/config.h>
5 #include <linux/types.h>
7 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
8 located on an ext2 file system */
9 #define O_ACCMODE 00000003
10 #define O_RDONLY 00000000
11 #define O_WRONLY 00000001
12 #define O_RDWR 00000002
14 #define O_CREAT 00000100 /* not fcntl */
17 #define O_EXCL 00000200 /* not fcntl */
20 #define O_NOCTTY 00000400 /* not fcntl */
23 #define O_TRUNC 00001000 /* not fcntl */
26 #define O_APPEND 00002000
29 #define O_NONBLOCK 00004000
32 #define O_SYNC 00010000
35 #define FASYNC 00020000 /* fcntl, for BSD compatibility */
38 #define O_DIRECT 00040000 /* direct disk access hint */
41 #define O_LARGEFILE 00100000
44 #define O_DIRECTORY 00200000 /* must be a directory */
47 #define O_NOFOLLOW 00400000 /* don't follow links */
50 #define O_NOATIME 01000000
52 #ifndef O_ATOMICLOOKUP
53 #define O_ATOMICLOOKUP 02000000 /* do atomic file lookup */
57 #define O_NDELAY O_NONBLOCK
60 #define F_DUPFD 0 /* dup */
61 #define F_GETFD 1 /* get close_on_exec */
62 #define F_SETFD 2 /* set/clear close_on_exec */
63 #define F_GETFL 3 /* get file->f_flags */
64 #define F_SETFL 4 /* set file->f_flags */
71 #define F_SETOWN 8 /* for sockets. */
72 #define F_GETOWN 9 /* for sockets. */
75 #define F_SETSIG 10 /* for sockets. */
76 #define F_GETSIG 11 /* for sockets. */
79 /* for F_[GET|SET]FL */
80 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
82 /* for posix fcntl() and lockf() */
89 /* for old implementation of bsd flock () */
91 #define F_EXLCK 4 /* or 3 */
92 #define F_SHLCK 8 /* or 4 */
97 #define F_INPROGRESS 16
100 /* operations for bsd flock(), also used by the kernel implementation */
101 #define LOCK_SH 1 /* shared lock */
102 #define LOCK_EX 2 /* exclusive lock */
103 #define LOCK_NB 4 /* or'd with one of the above to prevent
105 #define LOCK_UN 8 /* remove lock */
107 #define LOCK_MAND 32 /* This is a mandatory flock ... */
108 #define LOCK_READ 64 /* which allows concurrent read operations */
109 #define LOCK_WRITE 128 /* which allows concurrent write operations */
110 #define LOCK_RW 192 /* which allows concurrent read & write ops */
112 #define F_LINUX_SPECIFIC_BASE 1024
114 #ifndef HAVE_ARCH_STRUCT_FLOCK
115 #ifndef __ARCH_FLOCK_PAD
116 #define __ARCH_FLOCK_PAD
132 #define F_GETLK64 12 /* using 'struct flock64' */
134 #define F_SETLKW64 14
137 #ifndef HAVE_ARCH_STRUCT_FLOCK64
138 #ifndef __ARCH_FLOCK64_PAD
139 #define __ARCH_FLOCK64_PAD
151 #endif /* !CONFIG_64BIT */
153 #endif /* _ASM_GENERIC_FCNTL_H */