drbd: attach on connected diskless peer must not shrink a consistent device

		if (device->state.conn == C_WF_REPORT_PARAMS)

			p_usize = min_not_zero(my_usize, p_usize);

		/* Never shrink a device with usable data during connect.

		   But allow online shrinking if we are connected. */

		/* Never shrink a device with usable data during connect,

		 * or "attach" on the peer.

		 * But allow online shrinking if we are connected. */

		new_size = drbd_new_dev_size(device, device->ldev, p_usize, 0);

		if (new_size < cur_size &&

		    device->state.disk >= D_OUTDATED &&

		    device->state.conn < C_CONNECTED) {

		    (device->state.conn < C_CONNECTED || device->state.pdsk == D_DISKLESS)) {

			drbd_err(device, "The peer's disk size is too small! (%llu < %llu sectors)\n",

					(unsigned long long)new_size, (unsigned long long)cur_size);

			conn_request_state(peer_device->connection, NS(conn, C_DISCONNECTING), CS_HARD);

			synchronize_rcu();

			kfree(old_disk_conf);

			drbd_info(device, "Peer sets u_size to %lu sectors\n",

				 (unsigned long)my_usize);

			drbd_info(device, "Peer sets u_size to %lu sectors (old: %lu)\n",

				 (unsigned long)p_usize, (unsigned long)my_usize);

		}

		put_ldev(device);