--- exmap-0.10/kernel/exmap.c~	2006-09-28 18:52:25.000000000 +0200
+++ exmap-0.10/kernel/exmap.c	2007-02-10 16:53:48.716000000 +0100
@@ -34,6 +34,7 @@
 #include <linux/vmalloc.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
+#include <linux/vs_pid.h>
 
 /* Allow compilation on some kernels prior to 2.6.11 */