1 Index: linux-2.6.22.14/drivers/md/raid5.c
2 ===================================================================
3 --- linux-2.6.22.14.orig/drivers/md/raid5.c
4 +++ linux-2.6.22.14/drivers/md/raid5.c
5 @@ -1268,6 +1268,8 @@ static int add_stripe_bio(struct stripe_
8 bi->bi_phys_segments ++;
9 + if (bio_sync(bi) && !forwrite)
10 + clear_bit(R5_UPTODATE, &sh->dev[dd_idx].flags); /* force to read from disk. */
11 spin_unlock_irq(&conf->device_lock);
12 spin_unlock(&sh->lock);
14 @@ -2972,6 +2974,8 @@ static int make_request(request_queue_t
15 test_bit(BIO_UPTODATE, &bi->bi_flags)
19 + raid5_unplug_device(q);