moce pglisth into uvm_pglist.h

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_ */