/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASM_GENERIC_FCNTL_H #define _ASM_GENERIC_FCNTL_H #include <linux/types.h> /* * FMODE_EXEC is 0x20 * FMODE_NONOTIFY is 0x4000000 * These cannot be used by userspace O_* until internal and external open * flags are split. * -Eric Paris */ /* * When introducing new O_* bits, please check its uniqueness in fcntl_init(). */ #define O_ACCMODE … #define O_RDONLY … #define O_WRONLY … #define O_RDWR … #ifndef O_CREAT #define O_CREAT … #endif #ifndef O_EXCL #define O_EXCL … #endif #ifndef O_NOCTTY #define O_NOCTTY … #endif #ifndef O_TRUNC #define O_TRUNC … #endif #ifndef O_APPEND #define O_APPEND … #endif #ifndef O_NONBLOCK #define O_NONBLOCK … #endif #ifndef O_DSYNC #define O_DSYNC … #endif #ifndef FASYNC #define FASYNC … #endif #ifndef O_DIRECT #define O_DIRECT … #endif #ifndef O_LARGEFILE #define O_LARGEFILE … #endif #ifndef O_DIRECTORY #define O_DIRECTORY … #endif #ifndef O_NOFOLLOW #define O_NOFOLLOW … #endif #ifndef O_NOATIME #define O_NOATIME … #endif #ifndef O_CLOEXEC #define O_CLOEXEC … #endif /* * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using * the O_SYNC flag. We continue to use the existing numerical value * for O_DSYNC semantics now, but using the correct symbolic name for it. * This new value is used to request true Posix O_SYNC semantics. It is * defined in this strange way to make sure applications compiled against * new headers get at least O_DSYNC semantics on older kernels. * * This has the nice side-effect that we can simply test for O_DSYNC * wherever we do not care if O_DSYNC or O_SYNC is used. * * Note: __O_SYNC must never be used directly. */ #ifndef O_SYNC #define __O_SYNC … #define O_SYNC … #endif #ifndef O_PATH #define O_PATH … #endif #ifndef __O_TMPFILE #define __O_TMPFILE … #endif /* a horrid kludge trying to make sure that this will fail on old kernels */ #define O_TMPFILE … #ifndef O_NDELAY #define O_NDELAY … #endif #define F_DUPFD … #define F_GETFD … #define F_SETFD … #define F_GETFL … #define F_SETFL … #ifndef F_GETLK #define F_GETLK … #define F_SETLK … #define F_SETLKW … #endif #ifndef F_SETOWN #define F_SETOWN … #define F_GETOWN … #endif #ifndef F_SETSIG #define F_SETSIG … #define F_GETSIG … #endif #if __BITS_PER_LONG == 32 || defined(__KERNEL__) #ifndef F_GETLK64 #define F_GETLK64 … #define F_SETLK64 … #define F_SETLKW64 … #endif #endif /* __BITS_PER_LONG == 32 || defined(__KERNEL__) */ #ifndef F_SETOWN_EX #define F_SETOWN_EX … #define F_GETOWN_EX … #endif #ifndef F_GETOWNER_UIDS #define F_GETOWNER_UIDS … #endif /* * Open File Description Locks * * Usually record locks held by a process are released on *any* close and are * not inherited across a fork(). * * These cmd values will set locks that conflict with process-associated * record locks, but are "owned" by the open file description, not the * process. This means that they are inherited across fork() like BSD (flock) * locks, and they are only released automatically when the last reference to * the the open file against which they were acquired is put. */ #define F_OFD_GETLK … #define F_OFD_SETLK … #define F_OFD_SETLKW … #define F_OWNER_TID … #define F_OWNER_PID … #define F_OWNER_PGRP … struct f_owner_ex { … }; /* for F_[GET|SET]FL */ #define FD_CLOEXEC … /* for posix fcntl() and lockf() */ #ifndef F_RDLCK #define F_RDLCK … #define F_WRLCK … #define F_UNLCK … #endif /* for old implementation of bsd flock () */ #ifndef F_EXLCK #define F_EXLCK … #define F_SHLCK … #endif /* operations for bsd flock(), also used by the kernel implementation */ #define LOCK_SH … #define LOCK_EX … #define LOCK_NB … #define LOCK_UN … /* * LOCK_MAND support has been removed from the kernel. We leave the symbols * here to not break legacy builds, but these should not be used in new code. */ #define LOCK_MAND … #define LOCK_READ … #define LOCK_WRITE … #define LOCK_RW … #define F_LINUX_SPECIFIC_BASE … #ifndef HAVE_ARCH_STRUCT_FLOCK struct flock { … }; struct flock64 { … }; #endif /* HAVE_ARCH_STRUCT_FLOCK */ #endif /* _ASM_GENERIC_FCNTL_H */
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