1 #ifndef _ASM_GENERIC_FCNTL_H
2 #define _ASM_GENERIC_FCNTL_H
4 #include <linux/types.h>
8 * FMODE_NONOTIFY is 0x1000000
9 * These cannot be used by userspace O_* until internal and external open
14 #define O_ACCMODE 00000003
15 #define O_RDONLY 00000000
16 #define O_WRONLY 00000001
17 #define O_RDWR 00000002
19 #define O_CREAT 00000100 /* not fcntl */
22 #define O_EXCL 00000200 /* not fcntl */
25 #define O_NOCTTY 00000400 /* not fcntl */
28 #define O_TRUNC 00001000 /* not fcntl */
31 #define O_APPEND 00002000
34 #define O_NONBLOCK 00004000
37 #define O_DSYNC 00010000 /* used to be O_SYNC, see below */
40 #define FASYNC 00020000 /* fcntl, for BSD compatibility */
43 #define O_DIRECT 00040000 /* direct disk access hint */
46 #define O_LARGEFILE 00100000
49 #define O_DIRECTORY 00200000 /* must be a directory */
52 #define O_NOFOLLOW 00400000 /* don't follow links */
55 #define O_NOATIME 01000000
58 #define O_CLOEXEC 02000000 /* set close_on_exec */
62 * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
63 * the O_SYNC flag. We continue to use the existing numerical value
64 * for O_DSYNC semantics now, but using the correct symbolic name for it.
65 * This new value is used to request true Posix O_SYNC semantics. It is
66 * defined in this strange way to make sure applications compiled against
67 * new headers get at least O_DSYNC semantics on older kernels.
69 * This has the nice side-effect that we can simply test for O_DSYNC
70 * wherever we do not care if O_DSYNC or O_SYNC is used.
72 * Note: __O_SYNC must never be used directly.
75 #define __O_SYNC 04000000
76 #define O_SYNC (__O_SYNC|O_DSYNC)
80 #define O_NDELAY O_NONBLOCK
83 #define F_DUPFD 0 /* dup */
84 #define F_GETFD 1 /* get close_on_exec */
85 #define F_SETFD 2 /* set/clear close_on_exec */
86 #define F_GETFL 3 /* get file->f_flags */
87 #define F_SETFL 4 /* set file->f_flags */
94 #define F_SETOWN 8 /* for sockets. */
95 #define F_GETOWN 9 /* for sockets. */
98 #define F_SETSIG 10 /* for sockets. */
99 #define F_GETSIG 11 /* for sockets. */
104 #define F_GETLK64 12 /* using 'struct flock64' */
106 #define F_SETLKW64 14
111 #define F_SETOWN_EX 15
112 #define F_GETOWN_EX 16
115 #define F_OWNER_TID 0
116 #define F_OWNER_PID 1
117 #define F_OWNER_PGRP 2
124 /* for F_[GET|SET]FL */
125 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
127 /* for posix fcntl() and lockf() */
134 /* for old implementation of bsd flock () */
136 #define F_EXLCK 4 /* or 3 */
137 #define F_SHLCK 8 /* or 4 */
142 #define F_INPROGRESS 16
145 /* operations for bsd flock(), also used by the kernel implementation */
146 #define LOCK_SH 1 /* shared lock */
147 #define LOCK_EX 2 /* exclusive lock */
148 #define LOCK_NB 4 /* or'd with one of the above to prevent
150 #define LOCK_UN 8 /* remove lock */
152 #define LOCK_MAND 32 /* This is a mandatory flock ... */
153 #define LOCK_READ 64 /* which allows concurrent read operations */
154 #define LOCK_WRITE 128 /* which allows concurrent write operations */
155 #define LOCK_RW 192 /* which allows concurrent read & write ops */
157 #define F_LINUX_SPECIFIC_BASE 1024
159 #ifndef HAVE_ARCH_STRUCT_FLOCK
160 #ifndef __ARCH_FLOCK_PAD
161 #define __ARCH_FLOCK_PAD
167 __kernel_off_t l_start;
168 __kernel_off_t l_len;
169 __kernel_pid_t l_pid;
176 #ifndef HAVE_ARCH_STRUCT_FLOCK64
177 #ifndef __ARCH_FLOCK64_PAD
178 #define __ARCH_FLOCK64_PAD
184 __kernel_loff_t l_start;
185 __kernel_loff_t l_len;
186 __kernel_pid_t l_pid;
190 #endif /* !CONFIG_64BIT */
192 #endif /* _ASM_GENERIC_FCNTL_H */