1/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#define posix_fadvise64 __no_posix_fadvise64
19#include <errno.h>
20#include <fcntl.h>
21#include <sysdep.h>
22#undef posix_fadvise64
23
24/* Advice the system about the expected behaviour of the application with
25 respect to the file associated with FD. */
26
27int
28posix_fadvise (int fd, off_t offset, off_t len, int advise)
29{
30#ifdef __NR_fadvise64
31 INTERNAL_SYSCALL_DECL (err);
32 int ret = INTERNAL_SYSCALL (fadvise64, err, 4, fd, offset, len, advise);
33 if (INTERNAL_SYSCALL_ERROR_P (ret, err))
34 return INTERNAL_SYSCALL_ERRNO (ret, err);
35 return 0;
36#else
37 return ENOSYS;
38#endif
39}
40weak_alias (posix_fadvise, posix_fadvise64)
41