1 diff -pur linux-2.6.18-53.orig/drivers/md/raid5.c linux-2.6.18-53/drivers/md/raid5.c
2 --- linux-2.6.18-53.orig/drivers/md/raid5.c 2007-12-06 17:26:27.000000000 +0800
3 +++ linux-2.6.18-53/drivers/md/raid5.c 2007-12-06 17:26:55.000000000 +0800
4 @@ -3340,6 +3340,11 @@ static int run(mddev_t *mddev)
5 mddev->array_size = mddev->size * (conf->previous_raid_disks -
8 + /* in order to support large I/Os */
9 + blk_queue_max_sectors(mddev->queue, conf->chunk_size * conf->previous_raid_disks >> 9);
10 + mddev->queue->max_phys_segments = conf->chunk_size * conf->previous_raid_disks >> PAGE_SHIFT;
11 + mddev->queue->max_hw_segments = conf->chunk_size * conf->previous_raid_disks >> PAGE_SHIFT;;