Index: generic/include/adt/bitmap.h
===================================================================
--- generic/include/adt/bitmap.h	(revision 9fa16b204b1d07e1406cbdc9803f00547dcadfa8)
+++ generic/include/adt/bitmap.h	(revision 9fa16b204b1d07e1406cbdc9803f00547dcadfa8)
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2006 Jakub Jermar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - 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.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 __BITMAP_H__
+#define __BITMAP_H__
+
+#include <arch/types.h>
+#include <typedefs.h>
+
+#define BITS2BYTES(bits)	((((bits)-1)>>3)+1)
+
+typedef struct {
+	__u8 *map;
+	count_t bits;
+} bitmap_t;
+
+extern void bitmap_initialize(bitmap_t *bitmap, __u8 *map, count_t bits);
+extern void bitmap_set_range(bitmap_t *bitmap, index_t start, count_t bits);
+extern void bitmap_clear_range(bitmap_t *bitmap, index_t start, count_t bits);
+extern void bitmap_copy(bitmap_t *dst, bitmap_t *src, count_t bits);
+
+#endif