Index: /trunk/src/VBox/Runtime/r0drv/linux/the-linux-kernel.h
===================================================================
--- /trunk/src/VBox/Runtime/r0drv/linux/the-linux-kernel.h	(revision 23716)
+++ /trunk/src/VBox/Runtime/r0drv/linux/the-linux-kernel.h	(revision 23717)
@@ -82,4 +82,5 @@
 #include <linux/slab.h>
 #include <linux/time.h>
+#include <linux/sched.h>
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 7)
 # include <linux/jiffies.h>