From: "Raz Ben-Jehuda(caro)" <raziebe@gmail.com>

Call the chunk_aligned_read where appropriate.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/md/raid5.c |    5 +++++
 1 file changed, 5 insertions(+)

diff -puN drivers/md/raid5.c~md-enable-bypassing-cache-for-reads drivers/md/raid5.c
--- a/drivers/md/raid5.c~md-enable-bypassing-cache-for-reads
+++ a/drivers/md/raid5.c
@@ -2808,6 +2808,11 @@ static int make_request(request_queue_t 
 	disk_stat_inc(mddev->gendisk, ios[rw]);
 	disk_stat_add(mddev->gendisk, sectors[rw], bio_sectors(bi));
 
+	if (bio_data_dir(bi) == READ &&
+	     mddev->reshape_position == MaxSector &&
+	     chunk_aligned_read(q,bi))
+            	return 0;
+
 	logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
 	last_sector = bi->bi_sector + (bi->bi_size>>9);
 	bi->bi_next = NULL;
_