madvise.c revision 5d54f3d8999eac1762fe0a8c7177d20f1f201fae
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1988 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/mman.h>
#include <errno.h>
/*
* Function to provide advise to vm system to optimize it's
* characteristics for a particular application
*/
/*LINTLIBRARY*/
int
madvise(caddr_t addr, u_int len, int advice)
{
if (len == 0) {
errno = EINVAL;
return (-1);
}
return (mctl(addr, len, MC_ADVISE, advice));
}
/*
* This is only here so programs that use vadvise will not fail
* because it is not in the bcp libc.
*/
int
vadvise(int param)
{
return (0);
}