diff -ruN -X linux-2.6.20.2/Documentation/dontdiff linux-2.6.20.2/include/linux/raid/raid5.h linux-2.6.20.2-raid/include/linux/raid/raid5.h
--- linux-2.6.20.2/include/linux/raid/raid5.h	2007-03-09 20:58:04.000000000 +0200
+++ linux-2.6.20.2-raid/include/linux/raid/raid5.h	2007-03-30 00:25:38.000000000 +0200
@@ -136,6 +136,7 @@
 	spinlock_t		lock;
 	int			bm_seq;	/* sequence number for bitmap flushes */
 	int			disks;			/* disks in stripe */
+	unsigned long   	active_preread_jiffies;
 	struct r5dev {
 		struct bio	req;
 		struct bio_vec	vec;
@@ -254,6 +255,7 @@
 	 * Free stripes pool
 	 */
 	atomic_t		active_stripes;
+	atomic_t        	deadline_ms;
 	struct list_head	inactive_list;
 	wait_queue_head_t	wait_for_stripe;
 	wait_queue_head_t	wait_for_overlap;