diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 7e86130..e91dce7 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -176,6 +176,7 @@
 }
 
 extern void bust_spinlocks(int yes);
+extern void wake_up_klogd(void);
 extern int oops_in_progress;		/* If set, an oops, panic(), BUG() or die() is in progress */
 extern int panic_timeout;
 extern int panic_on_oops;