Commit b807a2c5 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

drbd: remove dead code in device_to_statistics 



Ever since the switch to blk-mq, a lower device not used for VM
writeback will not be marked congested, so the check will never
trigger.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 402dd2cf

drivers/block/drbd/drbd_nl.c

+0 −6
Original line number Diff line number Diff line
@@ -3370,7 +3370,6 @@ static void device_to_statistics(struct device_statistics *s, 
	if (get_ldev(device)) {

		struct drbd_md *md = &device->ldev->md;

		u64 *history_uuids = (u64 *)s->history_uuids;

		struct request_queue *q;

		int n;



		spin_lock_irq(&md->uuid_lock);
@@ -3384,11 +3383,6 @@ static void device_to_statistics(struct device_statistics *s, 
		spin_unlock_irq(&md->uuid_lock);



		s->dev_disk_flags = md->flags;

		q = bdev_get_queue(device->ldev->backing_bdev);

		s->dev_lower_blocked =

			bdi_congested(q->backing_dev_info,

				      (1 << WB_async_congested) |

				      (1 << WB_sync_congested));

		put_ldev(device);

	}

	s->dev_size = drbd_get_capacity(device->this_bdev);