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/* Copyright (C) 2013 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sysdep.h>
#include <sys/stat.h>
#include <sys/user.h>
#include <kernel-features.h>
extern int __syscall_posix_fadvise(int fd, off_t offset, off_t len, int advice);
libc_hidden_proto (__syscall_posix_fadvise)
/* the syscall is available in 8.x since 8.3 and in 9.1 and above */
/* i.e. it is not supported in 9.0 kernel */
int
posix_fadvise(int fd, off_t offset, off_t len, int advice)
{
int rv;
rv = INLINE_SYSCALL (posix_fadvise, 4, fd, offset, len, advice);
if (rv == -1)
{
if (errno == ENOSYS) /* cheat under old kernels as successfull */
return 0;
return errno;
}
return rv;
}
weak_alias (posix_fadvise, posix_fadvise64)
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