_vm_radix.h revision 246423
1251881Speter/* 2251881Speter * Copyright (c) 2011 Jeffrey Roberson <jeff@freebsd.org> 3251881Speter * Copyright (c) 2008 Mayur Shardul <mayur.shardul@gmail.com> 4251881Speter * All rights reserved. 5251881Speter * 6251881Speter * Redistribution and use in source and binary forms, with or without 7251881Speter * modification, are permitted provided that the following conditions 8251881Speter * are met: 9251881Speter * 1. Redistributions of source code must retain the above copyright 10251881Speter * notice, this list of conditions and the following disclaimer. 11251881Speter * 2. Redistributions in binary form must reproduce the above copyright 12251881Speter * notice, this list of conditions and the following disclaimer in the 13251881Speter * documentation and/or other materials provided with the distribution. 14251881Speter * 15251881Speter * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16251881Speter * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17251881Speter * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18251881Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19251881Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20251881Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21251881Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22251881Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23251881Speter * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24251881Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25251881Speter * SUCH DAMAGE. 26251881Speter * 27251881Speter */ 28251881Speter 29251881Speter#ifndef __VM_RADIX_H_ 30251881Speter#define __VM_RADIX_H_ 31251881Speter 32251881Speter/* 33251881Speter * Radix tree root. The height and pointer are set together to permit 34251881Speter * coherent lookups while the root is modified. 35251881Speter */ 36251881Speterstruct vm_radix { 37251881Speter uintptr_t rt_root; /* root + height */ 38251881Speter}; 39251881Speter 40251881Speter#endif /* !__VM_RADIX_H_ */ 41251881Speter