diff options
author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2001-08-12 17:55:58 +0000 |
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committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2001-08-12 17:55:58 +0000 |
commit | 8d21c20fa41fdc5806c2f588b52b20bf5707af7b (patch) | |
tree | 04c991afdda1f04b2efe0884a3e14e70e80a87fd /sys/uvm/uvm_pglist.h | |
parent | 2bb320b6f41d4c75ac49a77beec037d5bdf80639 (diff) |
moce pglisth into uvm_pglist.h
Diffstat (limited to 'sys/uvm/uvm_pglist.h')
-rw-r--r-- | sys/uvm/uvm_pglist.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/sys/uvm/uvm_pglist.h b/sys/uvm/uvm_pglist.h new file mode 100644 index 00000000000..7012031d055 --- /dev/null +++ b/sys/uvm/uvm_pglist.h @@ -0,0 +1,61 @@ +/* $OpenBSD: uvm_pglist.h,v 1.1 2001/08/12 17:55:56 mickey Exp $ */ +/* $NetBSD: uvm_pglist.h,v 1.3 2001/05/02 01:22:20 thorpej Exp $ */ + +/*- + * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe. + * + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +#ifndef _PGLIST_H_ +#define _PGLIST_H_ + +/* + * This defines the type of a page queue, e.g. active list, inactive + * list, etc. + */ +TAILQ_HEAD(pglist, vm_page); + +/* + * A page free list consists of free pages of unknown contents and free + * pages of all zeros. + */ +#define PGFL_UNKNOWN 0 +#define PGFL_ZEROS 1 +#define PGFL_NQUEUES 2 + +struct pgfreelist { + struct pglist pgfl_queues[PGFL_NQUEUES]; +}; + +#endif /* _PGLIST_H_ */ |