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/* Selective file content synch'ing.
Copyright (C) 2006-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
#ifdef __NR_sync_file_range
int
sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags)
{
if (SINGLE_THREAD_P)
return INLINE_SYSCALL (sync_file_range, 6, fd,
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
__LONG_LONG_PAIR ((long) (to >> 32), (long) to),
flags);
int result;
int oldtype = LIBC_CANCEL_ASYNC ();
result = INLINE_SYSCALL (sync_file_range, 6, fd,
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
__LONG_LONG_PAIR ((long) (to >> 32), (long) to),
flags);
LIBC_CANCEL_RESET (oldtype);
return result;
}
#elif defined __NR_sync_file_range2
int
sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags)
{
if (SINGLE_THREAD_P)
return INLINE_SYSCALL (sync_file_range2, 6, fd, flags,
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
__LONG_LONG_PAIR ((long) (to >> 32), (long) to));
int result;
int oldtype = LIBC_CANCEL_ASYNC ();
result = INLINE_SYSCALL (sync_file_range2, 6, fd, flags,
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
__LONG_LONG_PAIR ((long) (to >> 32), (long) to));
LIBC_CANCEL_RESET (oldtype);
return result;
}
#else
int
sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags)
{
__set_errno (ENOSYS);
return -1;
}
stub_warning (sync_file_range)
#endif
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