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Stephen Rothwell93172592005-09-06 15:17:57 -07001#ifndef _ASM_GENERIC_FCNTL_H
2#define _ASM_GENERIC_FCNTL_H
3
Stephen Rothwell5ac353f2005-09-06 15:18:00 -07004#include <linux/types.h>
5
Eric Parisecf081d2009-12-17 21:24:25 -05006/*
7 * FMODE_EXEC is 0x20
Signed-off-by: Wu Fengguang12ed2e32010-02-08 12:31:29 -05008 * FMODE_NONOTIFY is 0x1000000
Eric Parisecf081d2009-12-17 21:24:25 -05009 * These cannot be used by userspace O_* until internal and external open
10 * flags are split.
11 * -Eric Paris
12 */
13
Wu Fengguang454eedb2010-08-10 18:01:29 -070014/*
15 * When introducing new O_* bits, please check its uniqueness in fcntl_init().
16 */
17
Stephen Rothwelle64ca972005-09-06 15:17:58 -070018#define O_ACCMODE 00000003
19#define O_RDONLY 00000000
20#define O_WRONLY 00000001
21#define O_RDWR 00000002
22#ifndef O_CREAT
23#define O_CREAT 00000100 /* not fcntl */
24#endif
25#ifndef O_EXCL
26#define O_EXCL 00000200 /* not fcntl */
27#endif
28#ifndef O_NOCTTY
29#define O_NOCTTY 00000400 /* not fcntl */
30#endif
31#ifndef O_TRUNC
32#define O_TRUNC 00001000 /* not fcntl */
33#endif
34#ifndef O_APPEND
35#define O_APPEND 00002000
36#endif
37#ifndef O_NONBLOCK
38#define O_NONBLOCK 00004000
39#endif
Christoph Hellwig6b2f3d12009-10-27 11:05:28 +010040#ifndef O_DSYNC
41#define O_DSYNC 00010000 /* used to be O_SYNC, see below */
Stephen Rothwelle64ca972005-09-06 15:17:58 -070042#endif
43#ifndef FASYNC
44#define FASYNC 00020000 /* fcntl, for BSD compatibility */
45#endif
46#ifndef O_DIRECT
47#define O_DIRECT 00040000 /* direct disk access hint */
48#endif
49#ifndef O_LARGEFILE
50#define O_LARGEFILE 00100000
51#endif
52#ifndef O_DIRECTORY
53#define O_DIRECTORY 00200000 /* must be a directory */
54#endif
55#ifndef O_NOFOLLOW
56#define O_NOFOLLOW 00400000 /* don't follow links */
57#endif
58#ifndef O_NOATIME
59#define O_NOATIME 01000000
60#endif
Ulrich Drepperf23513e2007-07-15 23:40:32 -070061#ifndef O_CLOEXEC
62#define O_CLOEXEC 02000000 /* set close_on_exec */
63#endif
Christoph Hellwig6b2f3d12009-10-27 11:05:28 +010064
65/*
Christoph Hellwig76b7e002009-12-17 14:24:20 +010066 * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
Christoph Hellwig6b2f3d12009-10-27 11:05:28 +010067 * the O_SYNC flag. We continue to use the existing numerical value
68 * for O_DSYNC semantics now, but using the correct symbolic name for it.
69 * This new value is used to request true Posix O_SYNC semantics. It is
70 * defined in this strange way to make sure applications compiled against
71 * new headers get at least O_DSYNC semantics on older kernels.
72 *
73 * This has the nice side-effect that we can simply test for O_DSYNC
74 * wherever we do not care if O_DSYNC or O_SYNC is used.
75 *
76 * Note: __O_SYNC must never be used directly.
77 */
78#ifndef O_SYNC
79#define __O_SYNC 04000000
80#define O_SYNC (__O_SYNC|O_DSYNC)
81#endif
82
Al Viro1abf0c72011-03-13 03:51:11 -040083#ifndef O_PATH
84#define O_PATH 010000000
85#endif
86
Stephen Rothwelle64ca972005-09-06 15:17:58 -070087#ifndef O_NDELAY
88#define O_NDELAY O_NONBLOCK
89#endif
Stephen Rothwell93172592005-09-06 15:17:57 -070090
91#define F_DUPFD 0 /* dup */
92#define F_GETFD 1 /* get close_on_exec */
93#define F_SETFD 2 /* set/clear close_on_exec */
94#define F_GETFL 3 /* get file->f_flags */
95#define F_SETFL 4 /* set file->f_flags */
Stephen Rothwell1abf62a2005-09-06 15:17:59 -070096#ifndef F_GETLK
97#define F_GETLK 5
98#define F_SETLK 6
99#define F_SETLKW 7
100#endif
101#ifndef F_SETOWN
102#define F_SETOWN 8 /* for sockets. */
103#define F_GETOWN 9 /* for sockets. */
104#endif
105#ifndef F_SETSIG
106#define F_SETSIG 10 /* for sockets. */
107#define F_GETSIG 11 /* for sockets. */
108#endif
Peter Zijlstra71ccb832009-11-11 14:26:27 -0800109
110#ifndef CONFIG_64BIT
111#ifndef F_GETLK64
112#define F_GETLK64 12 /* using 'struct flock64' */
113#define F_SETLK64 13
114#define F_SETLKW64 14
115#endif
116#endif
117
Peter Zijlstraba0a6c92009-09-23 15:57:03 -0700118#ifndef F_SETOWN_EX
Peter Zijlstra71ccb832009-11-11 14:26:27 -0800119#define F_SETOWN_EX 15
120#define F_GETOWN_EX 16
Peter Zijlstraba0a6c92009-09-23 15:57:03 -0700121#endif
122
123#define F_OWNER_TID 0
124#define F_OWNER_PID 1
Peter Zijlstra978b4052009-11-17 14:06:24 -0800125#define F_OWNER_PGRP 2
Peter Zijlstraba0a6c92009-09-23 15:57:03 -0700126
127struct f_owner_ex {
128 int type;
Lucian Adrian Grijincu269b8fd2010-10-06 15:03:47 -0700129 __kernel_pid_t pid;
Peter Zijlstraba0a6c92009-09-23 15:57:03 -0700130};
Stephen Rothwell93172592005-09-06 15:17:57 -0700131
132/* for F_[GET|SET]FL */
133#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
134
Stephen Rothwell1abf62a2005-09-06 15:17:59 -0700135/* for posix fcntl() and lockf() */
136#ifndef F_RDLCK
137#define F_RDLCK 0
138#define F_WRLCK 1
139#define F_UNLCK 2
140#endif
141
142/* for old implementation of bsd flock () */
143#ifndef F_EXLCK
144#define F_EXLCK 4 /* or 3 */
145#define F_SHLCK 8 /* or 4 */
146#endif
147
Stephen Rothwell93172592005-09-06 15:17:57 -0700148/* operations for bsd flock(), also used by the kernel implementation */
149#define LOCK_SH 1 /* shared lock */
150#define LOCK_EX 2 /* exclusive lock */
151#define LOCK_NB 4 /* or'd with one of the above to prevent
152 blocking */
153#define LOCK_UN 8 /* remove lock */
154
155#define LOCK_MAND 32 /* This is a mandatory flock ... */
156#define LOCK_READ 64 /* which allows concurrent read operations */
157#define LOCK_WRITE 128 /* which allows concurrent write operations */
158#define LOCK_RW 192 /* which allows concurrent read & write ops */
159
160#define F_LINUX_SPECIFIC_BASE 1024
161
Stephen Rothwell5ac353f2005-09-06 15:18:00 -0700162#ifndef HAVE_ARCH_STRUCT_FLOCK
163#ifndef __ARCH_FLOCK_PAD
164#define __ARCH_FLOCK_PAD
165#endif
166
167struct flock {
168 short l_type;
169 short l_whence;
Arnd Bergmann85efde62009-02-26 00:51:39 +0100170 __kernel_off_t l_start;
171 __kernel_off_t l_len;
172 __kernel_pid_t l_pid;
Stephen Rothwell5ac353f2005-09-06 15:18:00 -0700173 __ARCH_FLOCK_PAD
174};
175#endif
176
Stephen Rothwell8d286aa2005-09-06 15:18:01 -0700177#ifndef CONFIG_64BIT
178
Stephen Rothwell8d286aa2005-09-06 15:18:01 -0700179#ifndef HAVE_ARCH_STRUCT_FLOCK64
180#ifndef __ARCH_FLOCK64_PAD
181#define __ARCH_FLOCK64_PAD
182#endif
183
184struct flock64 {
185 short l_type;
186 short l_whence;
Arnd Bergmann85efde62009-02-26 00:51:39 +0100187 __kernel_loff_t l_start;
188 __kernel_loff_t l_len;
189 __kernel_pid_t l_pid;
Stephen Rothwell8d286aa2005-09-06 15:18:01 -0700190 __ARCH_FLOCK64_PAD
191};
192#endif
193#endif /* !CONFIG_64BIT */
194
Stephen Rothwell93172592005-09-06 15:17:57 -0700195#endif /* _ASM_GENERIC_FCNTL_H */