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+/*
+ * Copyright (c) 2013 EMC Corp.
+ * Copyright (c) 2011 Jeffrey Roberson <jeff@freebsd.org>
+ * Copyright (c) 2008 Mayur Shardul <mayur.shardul@gmail.com>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 _VM_RADIX_H_
+#define _VM_RADIX_H_
+
+#include <vm/_vm_radix.h>
+
+#ifdef _KERNEL
+
+void vm_radix_init(void);
+void vm_radix_insert(struct vm_radix *rtree, vm_page_t page);
+vm_page_t vm_radix_lookup(struct vm_radix *rtree, vm_pindex_t index);
+vm_page_t vm_radix_lookup_ge(struct vm_radix *rtree, vm_pindex_t index);
+vm_page_t vm_radix_lookup_le(struct vm_radix *rtree, vm_pindex_t index);
+void vm_radix_reclaim_allnodes(struct vm_radix *rtree);
+void vm_radix_remove(struct vm_radix *rtree, vm_pindex_t index);
+
+#endif /* _KERNEL */
+#endif /* !_VM_RADIX_H_ */
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