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+#ifndef _ASM_GENERIC_FCNTL_H
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+#define _ASM_GENERIC_FCNTL_H
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+
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+#include <linux/types.h>
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+
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+/*
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+ * FMODE_EXEC is 0x20
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+ * FMODE_NONOTIFY is 0x4000000
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+ * These cannot be used by userspace O_* until internal and external open
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+ * flags are split.
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+ * -Eric Paris
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+ */
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+
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+/*
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+ * When introducing new O_* bits, please check its uniqueness in fcntl_init().
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+ */
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+
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+#define O_ACCMODE 00000003
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+#define O_RDONLY 00000000
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+#define O_WRONLY 00000001
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+#define O_RDWR 00000002
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+#ifndef O_CREAT
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+#define O_CREAT 00000100 /* not fcntl */
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+#endif
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+#ifndef O_EXCL
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+#define O_EXCL 00000200 /* not fcntl */
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+#endif
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+#ifndef O_NOCTTY
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+#define O_NOCTTY 00000400 /* not fcntl */
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+#endif
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+#ifndef O_TRUNC
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+#define O_TRUNC 00001000 /* not fcntl */
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+#endif
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+#ifndef O_APPEND
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+#define O_APPEND 00002000
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+#endif
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+#ifndef O_NONBLOCK
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+#define O_NONBLOCK 00004000
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+#endif
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+#ifndef O_DSYNC
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+#define O_DSYNC 00010000 /* used to be O_SYNC, see below */
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+#endif
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+#ifndef FASYNC
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+#define FASYNC 00020000 /* fcntl, for BSD compatibility */
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+#endif
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+#ifndef O_DIRECT
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+#define O_DIRECT 00040000 /* direct disk access hint */
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+#endif
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+#ifndef O_LARGEFILE
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+#define O_LARGEFILE 00100000
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+#endif
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+#ifndef O_DIRECTORY
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+#define O_DIRECTORY 00200000 /* must be a directory */
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+#endif
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+#ifndef O_NOFOLLOW
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+#define O_NOFOLLOW 00400000 /* don't follow links */
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+#endif
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+#ifndef O_NOATIME
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+#define O_NOATIME 01000000
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+#endif
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+#ifndef O_CLOEXEC
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+#define O_CLOEXEC 02000000 /* set close_on_exec */
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+#endif
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+
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+/*
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+ * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
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+ * the O_SYNC flag. We continue to use the existing numerical value
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+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
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+ * This new value is used to request true Posix O_SYNC semantics. It is
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+ * defined in this strange way to make sure applications compiled against
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+ * new headers get at least O_DSYNC semantics on older kernels.
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+ *
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+ * This has the nice side-effect that we can simply test for O_DSYNC
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+ * wherever we do not care if O_DSYNC or O_SYNC is used.
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+ *
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+ * Note: __O_SYNC must never be used directly.
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+ */
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+#ifndef O_SYNC
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+#define __O_SYNC 04000000
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+#define O_SYNC (__O_SYNC|O_DSYNC)
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+#endif
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+
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+#ifndef O_PATH
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+#define O_PATH 010000000
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+#endif
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+
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+#ifndef __O_TMPFILE
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+#define __O_TMPFILE 020000000
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+#endif
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+
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+/* a horrid kludge trying to make sure that this will fail on old kernels */
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+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
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+#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT)
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+
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+#ifndef O_NDELAY
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+#define O_NDELAY O_NONBLOCK
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+#endif
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+
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+#define F_DUPFD 0 /* dup */
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+#define F_GETFD 1 /* get close_on_exec */
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+#define F_SETFD 2 /* set/clear close_on_exec */
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+#define F_GETFL 3 /* get file->f_flags */
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+#define F_SETFL 4 /* set file->f_flags */
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+#ifndef F_GETLK
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+#define F_GETLK 5
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+#define F_SETLK 6
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+#define F_SETLKW 7
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+#endif
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+#ifndef F_SETOWN
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+#define F_SETOWN 8 /* for sockets. */
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+#define F_GETOWN 9 /* for sockets. */
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+#endif
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+#ifndef F_SETSIG
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+#define F_SETSIG 10 /* for sockets. */
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+#define F_GETSIG 11 /* for sockets. */
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+#endif
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+
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+#ifndef CONFIG_64BIT
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+#ifndef F_GETLK64
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+#define F_GETLK64 12 /* using 'struct flock64' */
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+#define F_SETLK64 13
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+#define F_SETLKW64 14
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+#endif
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+#endif
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+
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+#ifndef F_SETOWN_EX
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+#define F_SETOWN_EX 15
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+#define F_GETOWN_EX 16
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+#endif
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+
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+#ifndef F_GETOWNER_UIDS
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+#define F_GETOWNER_UIDS 17
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+#endif
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+
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+/*
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+ * Open File Description Locks
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+ *
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+ * Usually record locks held by a process are released on *any* close and are
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+ * not inherited across a fork().
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+ *
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+ * These cmd values will set locks that conflict with process-associated
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+ * record locks, but are "owned" by the open file description, not the
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+ * process. This means that they are inherited across fork() like BSD (flock)
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+ * locks, and they are only released automatically when the last reference to
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+ * the the open file against which they were acquired is put.
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+ */
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+#define F_OFD_GETLK 36
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+#define F_OFD_SETLK 37
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+#define F_OFD_SETLKW 38
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+
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+#define F_OWNER_TID 0
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+#define F_OWNER_PID 1
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+#define F_OWNER_PGRP 2
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+
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+struct f_owner_ex {
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+ int type;
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+ __kernel_pid_t pid;
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+};
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+
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+/* for F_[GET|SET]FL */
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+#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
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+
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+/* for posix fcntl() and lockf() */
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+#ifndef F_RDLCK
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+#define F_RDLCK 0
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+#define F_WRLCK 1
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+#define F_UNLCK 2
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+#endif
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+
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+/* for old implementation of bsd flock () */
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+#ifndef F_EXLCK
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+#define F_EXLCK 4 /* or 3 */
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+#define F_SHLCK 8 /* or 4 */
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+#endif
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+
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+/* operations for bsd flock(), also used by the kernel implementation */
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+#define LOCK_SH 1 /* shared lock */
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+#define LOCK_EX 2 /* exclusive lock */
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+#define LOCK_NB 4 /* or'd with one of the above to prevent
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+ blocking */
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+#define LOCK_UN 8 /* remove lock */
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+
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+#define LOCK_MAND 32 /* This is a mandatory flock ... */
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+#define LOCK_READ 64 /* which allows concurrent read operations */
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+#define LOCK_WRITE 128 /* which allows concurrent write operations */
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+#define LOCK_RW 192 /* which allows concurrent read & write ops */
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+
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+#define F_LINUX_SPECIFIC_BASE 1024
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+
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+#ifndef HAVE_ARCH_STRUCT_FLOCK
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+#ifndef __ARCH_FLOCK_PAD
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+#define __ARCH_FLOCK_PAD
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+#endif
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+
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+struct flock {
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+ short l_type;
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+ short l_whence;
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+ __kernel_off_t l_start;
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+ __kernel_off_t l_len;
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+ __kernel_pid_t l_pid;
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+ __ARCH_FLOCK_PAD
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+};
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+#endif
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+
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+#ifndef HAVE_ARCH_STRUCT_FLOCK64
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+#ifndef __ARCH_FLOCK64_PAD
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+#define __ARCH_FLOCK64_PAD
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+#endif
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+
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+struct flock64 {
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+ short l_type;
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+ short l_whence;
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+ __kernel_loff_t l_start;
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+ __kernel_loff_t l_len;
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+ __kernel_pid_t l_pid;
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+ __ARCH_FLOCK64_PAD
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+};
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+#endif
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+
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+#endif /* _ASM_GENERIC_FCNTL_H */
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