[PATCH] uml: add __raw_writeq definition

The x86_64 build requires a definition for __raw_writeq.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/asm-um/io.h

@@ -45,8 +45,13 @@ static inline void writel(unsigned int b, volatile void __iomem *addr)
 {
 	*(volatile unsigned int __force *) addr = b;
 }
+static inline void writeq(unsigned int b, volatile void __iomem *addr)
+{
+	*(volatile unsigned long long __force *) addr = b;
+}
 #define __raw_writeb writeb
 #define __raw_writew writew
 #define __raw_writel writel
+#define __raw_writeq writeq
 
 #endif