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drbd: remove dead code in device_to_statistics

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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: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-09-24 08:51:29 +02:00 committed by Jens Axboe
parent 402dd2cf46
commit b807a2c5e0
1 changed files with 0 additions and 6 deletions
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6
drivers/block/drbd/drbd_nl.c
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@ -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);