/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "lint.h"
#include <sys/types.h>
#include <sys/mman.h>
#include <errno.h>
/*
* SUSv3 - memory advisory information and alignment control
*
* The POSIX_MADV_* constants below are defined in <sys/mman.h>
* to have the same values as the corresponding MADV_* constants,
* also defined in <sys/mman.h>, so a direct call to madvise()
* can be made here without further ado.
*/
int
posix_madvise(void *addr, size_t len, int advice)
{
switch (advice) {
case POSIX_MADV_NORMAL:
case POSIX_MADV_SEQUENTIAL:
case POSIX_MADV_RANDOM:
case POSIX_MADV_WILLNEED:
case POSIX_MADV_DONTNEED:
break;
default:
return (EINVAL);
}
if (madvise(addr, len, advice) == 0)
return (0);
return (errno);
}