vfs: Implement proper O_SYNC semantics
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / alpha / include / asm / fcntl.h
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1#ifndef _ALPHA_FCNTL_H
2#define _ALPHA_FCNTL_H
3
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4#define O_CREAT 01000 /* not fcntl */
5#define O_TRUNC 02000 /* not fcntl */
6#define O_EXCL 04000 /* not fcntl */
7#define O_NOCTTY 010000 /* not fcntl */
8
9#define O_NONBLOCK 00004
10#define O_APPEND 00010
6b2f3d1f 11#define O_DSYNC 040000 /* used to be O_SYNC, see below */
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12#define O_DIRECTORY 0100000 /* must be a directory */
13#define O_NOFOLLOW 0200000 /* don't follow links */
14#define O_LARGEFILE 0400000 /* will be set by the kernel on every open */
15#define O_DIRECT 02000000 /* direct disk access - should check with OSF/1 */
16#define O_NOATIME 04000000
620b5e68 17#define O_CLOEXEC 010000000 /* set close_on_exec */
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18/*
19 * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
20 * the O_SYNC flag. We continue to use the existing numerical value
21 * for O_DSYNC semantics now, but using the correct symbolic name for it.
22 * This new value is used to request true Posix O_SYNC semantics. It is
23 * defined in this strange way to make sure applications compiled against
24 * new headers get at least O_DSYNC semantics on older kernels.
25 *
26 * This has the nice side-effect that we can simply test for O_DSYNC
27 * wherever we do not care if O_DSYNC or O_SYNC is used.
28 *
29 * Note: __O_SYNC must never be used directly.
30 */
31#define __O_SYNC 020000000
32#define O_SYNC (__O_SYNC|O_DSYNC)
1da177e4 33
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34#define F_GETLK 7
35#define F_SETLK 8
36#define F_SETLKW 9
37
38#define F_SETOWN 5 /* for sockets. */
39#define F_GETOWN 6 /* for sockets. */
40#define F_SETSIG 10 /* for sockets. */
41#define F_GETSIG 11 /* for sockets. */
42
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43/* for posix fcntl() and lockf() */
44#define F_RDLCK 1
45#define F_WRLCK 2
46#define F_UNLCK 8
47
48/* for old implementation of bsd flock () */
49#define F_EXLCK 16 /* or 3 */
50#define F_SHLCK 32 /* or 4 */
51
52#define F_INPROGRESS 64
53
9317259e 54#include <asm-generic/fcntl.h>
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55
56#endif