O_CREAT and O_RWSIZE_8 are both defined as 0100. Fix this by moving the O_RWSIZE_* flags to unused bits. This bug leads to incomplete writes when the destination file is created and mem_write is involved, for example with the memcpy command: memcpy -s /some/file -d /dev/ram0 0 0 10 In this case only 8 bytes will be copied and it will be done using 8 byte accesses which may not work properly if the destination is not sufficiently aligned, i.e.: memcpy -s /some/file -d /dev/ram0 0 1 8 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reported-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
#ifndef _ASM_GENERIC_FCNTL_H
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#define _ASM_GENERIC_FCNTL_H
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#include <linux/types.h>
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/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
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located on an ext2 file system */
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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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#define O_CREAT 00000100 /* not fcntl */
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#define O_EXCL 00000200 /* not fcntl */
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#define O_TRUNC 00001000 /* not fcntl */
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#define O_APPEND 00002000
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#define O_DIRECTORY 00200000 /* must be a directory */
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#define O_NOFOLLOW 00400000 /* don't follow links */
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/* barebox additional flags */
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#define O_RWSIZE_MASK 017000000
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#define O_RWSIZE_SHIFT 18
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#define O_RWSIZE_1 001000000
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#define O_RWSIZE_2 002000000
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#define O_RWSIZE_4 004000000
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#define O_RWSIZE_8 010000000
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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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/* for F_[GET|SET]FL */
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#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
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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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/* 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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/* for leases */
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#ifndef F_INPROGRESS
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#define F_INPROGRESS 16
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#endif
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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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#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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#define F_LINUX_SPECIFIC_BASE 1024
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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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struct flock {
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short l_type;
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short l_whence;
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off_t l_start;
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off_t l_len;
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pid_t l_pid;
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__ARCH_FLOCK_PAD
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};
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#endif
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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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#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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struct flock64 {
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short l_type;
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short l_whence;
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loff_t l_start;
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loff_t l_len;
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pid_t l_pid;
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__ARCH_FLOCK64_PAD
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};
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#endif
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#endif /* !CONFIG_64BIT */
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#endif /* _ASM_GENERIC_FCNTL_H */
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