LCOM1920-T02G10

/*        $NetBSD: vadvise.h,v 1.10 2005/12/11 12:25:21 christos Exp $        */

/*-

 * Copyright (c) 1982, 1986, 1993

 *        The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *        @(#)vadvise.h        8.1 (Berkeley) 6/2/93

 */

#ifndef _SYS_VADVISE_H_

#define _SYS_VADVISE_H_

/*

 * Parameters to vadvise() to tell system of particular paging

 * behaviour:

 *        VA_NORM                Normal strategy

 *        VA_ANOM                Sampling page behaviour is not a win, don't bother

 *                        Suitable during GCs in LISP, or sequential or random

 *                        page referencing.

 *        VA_SEQL                Sequential behaviour expected.

 *        VA_FLUSH        Invalidate all page table entries.

 */

#define        VA_NORM                0

#define        VA_ANOM                1

#define        VA_SEQL                2

#define        VA_FLUSH         3

#ifndef _KERNEL

__BEGIN_DECLS

int vadvise(int);

__END_DECLS

#endif

#endif /* !_SYS_VADVISE_H_ */