1 #ifndef _ASM_GENERIC_FCNTL_H
2 #define _ASM_GENERIC_FCNTL_H
4 #include <linux/types.h>
6 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
7 located on an ext2 file system */
8 #define O_ACCMODE 00000003
9 #define O_RDONLY 00000000
10 #define O_WRONLY 00000001
11 #define O_RDWR 00000002
13 #define O_CREAT 00000100 /* not fcntl */
16 #define O_EXCL 00000200 /* not fcntl */
19 #define O_NOCTTY 00000400 /* not fcntl */
22 #define O_TRUNC 00001000 /* not fcntl */
25 #define O_APPEND 00002000
28 #define O_NONBLOCK 00004000
31 #define O_SYNC 00010000
34 #define FASYNC 00020000 /* fcntl, for BSD compatibility */
37 #define O_DIRECT 00040000 /* direct disk access hint */
40 #define O_LARGEFILE 00100000
43 #define O_DIRECTORY 00200000 /* must be a directory */
46 #define O_NOFOLLOW 00400000 /* don't follow links */
49 #define O_NOATIME 01000000
51 #ifndef O_ATOMICLOOKUP
52 #define O_ATOMICLOOKUP 02000000 /* do atomic file lookup */
56 #define O_NDELAY O_NONBLOCK
59 #define F_DUPFD 0 /* dup */
60 #define F_GETFD 1 /* get close_on_exec */
61 #define F_SETFD 2 /* set/clear close_on_exec */
62 #define F_GETFL 3 /* get file->f_flags */
63 #define F_SETFL 4 /* set file->f_flags */
70 #define F_SETOWN 8 /* for sockets. */
71 #define F_GETOWN 9 /* for sockets. */
74 #define F_SETSIG 10 /* for sockets. */
75 #define F_GETSIG 11 /* for sockets. */
78 /* for F_[GET|SET]FL */
79 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
81 /* for posix fcntl() and lockf() */
88 /* for old implementation of bsd flock () */
90 #define F_EXLCK 4 /* or 3 */
91 #define F_SHLCK 8 /* or 4 */
96 #define F_INPROGRESS 16
99 /* operations for bsd flock(), also used by the kernel implementation */
100 #define LOCK_SH 1 /* shared lock */
101 #define LOCK_EX 2 /* exclusive lock */
102 #define LOCK_NB 4 /* or'd with one of the above to prevent
104 #define LOCK_UN 8 /* remove lock */
106 #define LOCK_MAND 32 /* This is a mandatory flock ... */
107 #define LOCK_READ 64 /* which allows concurrent read operations */
108 #define LOCK_WRITE 128 /* which allows concurrent write operations */
109 #define LOCK_RW 192 /* which allows concurrent read & write ops */
111 #define F_LINUX_SPECIFIC_BASE 1024
113 #ifndef HAVE_ARCH_STRUCT_FLOCK
114 #ifndef __ARCH_FLOCK_PAD
115 #define __ARCH_FLOCK_PAD
131 #define F_GETLK64 12 /* using 'struct flock64' */
133 #define F_SETLKW64 14
136 #ifndef HAVE_ARCH_STRUCT_FLOCK64
137 #ifndef __ARCH_FLOCK64_PAD
138 #define __ARCH_FLOCK64_PAD
150 #endif /* !CONFIG_64BIT */
152 #endif /* _ASM_GENERIC_FCNTL_H */