Index: linux-2.6.23-rc9-rt2/kernel/sched.c
===================================================================
--- linux-2.6.23-rc9-rt2.orig/kernel/sched.c
+++ linux-2.6.23-rc9-rt2/kernel/sched.c
@@ -64,6 +64,7 @@
 #include <linux/delayacct.h>
 #include <linux/reciprocal_div.h>
 #include <linux/unistd.h>
+#include <linux/logdev.h>
 
 #include <asm/tlb.h>
 
@@ -2394,6 +2395,8 @@ context_switch(struct rq *rq, struct tas
 	*current_ptr = next;
 	*current_ti_ptr = next->thread_info;
 #endif
+	logdev_record_switch(prev, next);
+
 	/* Here we just switch the register state and the stack. */
 	switch_to(prev, next, prev);