68 	devpath = xenbus_read(XBT_NIL, dev->nodename, "dev", NULL);  in blkback_name()
495 	err = xenbus_printf(xbt, dev->nodename, "feature-flush-cache",  in xen_blkbk_flush_diskcache()
512 	err = xenbus_scanf(XBT_NIL, dev->nodename, "discard-enable", "%d",  in xen_blkbk_discard()
518 		err = xenbus_printf(xbt, dev->nodename,  in xen_blkbk_discard()
525 		err = xenbus_printf(xbt, dev->nodename,  in xen_blkbk_discard()
534 		err = xenbus_printf(xbt, dev->nodename,  in xen_blkbk_discard()
542 	err = xenbus_printf(xbt, dev->nodename, "feature-discard",  in xen_blkbk_discard()
553 	err = xenbus_printf(xbt, dev->nodename, "feature-barrier",  in xen_blkbk_barrier()
596 				   "%s/%s", dev->nodename, "physical-device");  in xen_blkbk_probe()
633 	err = xenbus_scanf(XBT_NIL, dev->nodename, "physical-device", "%x:%x",  in backend_changed()
655 	be->mode = xenbus_read(XBT_NIL, dev->nodename, "mode", NULL);  in backend_changed()
716 			pr_info("%s: prepare for reconnect\n", dev->nodename);  in frontend_changed()
800 	err = xenbus_printf(xbt, dev->nodename, "feature-persistent", "%u", 1);  in connect()
803 				 dev->nodename);  in connect()
806 	err = xenbus_printf(xbt, dev->nodename, "feature-max-indirect-segments", "%u",  in connect()
810 			 dev->nodename, err);  in connect()
812 	err = xenbus_printf(xbt, dev->nodename, "sectors", "%llu",  in connect()
816 				 dev->nodename);  in connect()
821 	err = xenbus_printf(xbt, dev->nodename, "info", "%u",  in connect()
826 				 dev->nodename);  in connect()
829 	err = xenbus_printf(xbt, dev->nodename, "sector-size", "%lu",  in connect()
834 				 dev->nodename);  in connect()
837 	err = xenbus_printf(xbt, dev->nodename, "physical-sector-size", "%u",  in connect()
841 				 dev->nodename);  in connect()
852 				 dev->nodename);  in connect()