ll_rw_kio error msgs

[tes@xxxxxxxxxxxxxxxxxxxxxxx (Timothy Shimmin)]

Hi,

I p_tupdate today and built the xfs kernel and am now
getting heaps of
"ll_rw_kio: Unexpected device [08:07] queueing function encountered"
messages.

Presumably comes from:
        if (q->make_request_fn) {
                printk(KERN_ERR
        "ll_rw_kio: Unexpected device [%s] queueing function encountered\n",
                kdevname(dev));
                *error = -ENOSYS;
                goto end_io;
        }

Is this a known thing or have I stuffed something up ?

Thanks,
Tim.