DPRINTK
DPRINTK("blkfront.c:connect:%s.\n", xenbus_get_otherend_path(dev));
DPRINTK("xbd_closing: %s removed\n", xenbus_get_node(dev));
DPRINTK("%s: %s removed\n", __func__, xenbus_get_node(dev));
DPRINTK("xbd_resume: %s\n", xenbus_get_node(dev));
DPRINTK("backend_state=%d\n", backend_state);
DPRINTK("newstate=%d\n", newstate);
DPRINTK("rx->status=%hd rx->offset=%hu frags=%u\n",
DPRINTK("%s\n", xenbus_get_node(dev));