diff -purN --exclude-from=/export/public/clemep/tmp/dontdiff linux-orig/block/ll_rw_blk.c linux-2.6.18-128.1.6.el5.xs5.5.0.496.1012xen/block/ll_rw_blk.c
--- linux-orig/block/ll_rw_blk.c	2009-05-29 07:29:54.000000000 -0400
+++ linux-2.6.18-128.1.6.el5.xs5.5.0.496.1012xen/block/ll_rw_blk.c	2009-07-28 13:36:19.000000000 -0400
@@ -1374,6 +1374,7 @@ new_hw_segment:
 	bio->bi_flags |= (1 << BIO_SEG_VALID);
 }
 
+EXPORT_SYMBOL(blk_recount_segments);
 
 static int blk_phys_contig_segment(request_queue_t *q, struct bio *bio,
 				   struct bio *nxt)
diff -purN --exclude-from=/export/public/clemep/tmp/dontdiff linux-orig/drivers/md/raid1.c linux-2.6.18-128.1.6.el5.xs5.5.0.496.1012xen/drivers/md/raid1.c
--- linux-orig/drivers/md/raid1.c	2009-05-29 07:29:54.000000000 -0400
+++ linux-2.6.18-128.1.6.el5.xs5.5.0.496.1012xen/drivers/md/raid1.c	2009-07-28 13:35:36.000000000 -0400
@@ -900,6 +900,7 @@ static int make_request(request_queue_t 
 			 */
 			__bio_for_each_segment(bvec, mbio, j, 0)
 				bvec->bv_page = behind_pages[j];
+			blk_recount_segments(q, mbio);
 			if (test_bit(WriteMostly, &conf->mirrors[i].rdev->flags))
 				atomic_inc(&r1_bio->behind_remaining);
 		}