diff -r 000000000000 -r 96e5fb8b040d userlibandfileserver/fileserver/smassstorage/massstorageutil.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/smassstorage/massstorageutil.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,62 @@
+// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Utility functions for the Mass Storage file system.
+// 
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#include <e32std.h>
+#include <e32std_private.h>
+
+/**
+Returns ETrue if aNum is a power of two
+*/
+GLDEF_C TBool IsPowerOfTwo(TInt aNum)
+	{
+
+	if (aNum==0)
+		return(EFalse);
+
+	while(aNum)
+		{
+		if (aNum & 0x01)
+			{
+			if (aNum>>1) 
+				return EFalse;
+			break;
+			}
+		aNum>>=1;
+		}
+	return ETrue;
+	}
+
+/**
+Returns the position of the highest bit in aNum or -1 if aNum == 0
+*/
+GLDEF_C TInt Log2(TInt aNum)
+	{
+
+	TInt res=-1;
+	while(aNum)
+		{
+		res++;
+		aNum>>=1;
+		}
+	return(res);
+	}
+