69 	devpath = xenbus_read(XBT_NIL, dev->nodename, "dev", NULL);  in blkback_name()
459 	err = xenbus_printf(xbt, dev->nodename, "feature-flush-cache",  in xen_blkbk_flush_diskcache()
476 	err = xenbus_scanf(XBT_NIL, dev->nodename, "discard-enable", "%d",  in xen_blkbk_discard()
482 		err = xenbus_printf(xbt, dev->nodename,  in xen_blkbk_discard()
489 		err = xenbus_printf(xbt, dev->nodename,  in xen_blkbk_discard()
498 		err = xenbus_printf(xbt, dev->nodename,  in xen_blkbk_discard()
506 	err = xenbus_printf(xbt, dev->nodename, "feature-discard",  in xen_blkbk_discard()
517 	err = xenbus_printf(xbt, dev->nodename, "feature-barrier",  in xen_blkbk_barrier()
560 				   "%s/%s", dev->nodename, "physical-device");  in xen_blkbk_probe()
564 	err = xenbus_printf(XBT_NIL, dev->nodename, "max-ring-page-order", "%u",  in xen_blkbk_probe()
602 	err = xenbus_scanf(XBT_NIL, dev->nodename, "physical-device", "%x:%x",  in backend_changed()
624 	be->mode = xenbus_read(XBT_NIL, dev->nodename, "mode", NULL);  in backend_changed()
685 			pr_info("%s: prepare for reconnect\n", dev->nodename);  in frontend_changed()
769 	err = xenbus_printf(xbt, dev->nodename, "feature-persistent", "%u", 1);  in connect()
772 				 dev->nodename);  in connect()
775 	err = xenbus_printf(xbt, dev->nodename, "feature-max-indirect-segments", "%u",  in connect()
779 			 dev->nodename, err);  in connect()
781 	err = xenbus_printf(xbt, dev->nodename, "sectors", "%llu",  in connect()
785 				 dev->nodename);  in connect()
790 	err = xenbus_printf(xbt, dev->nodename, "info", "%u",  in connect()
795 				 dev->nodename);  in connect()
798 	err = xenbus_printf(xbt, dev->nodename, "sector-size", "%lu",  in connect()
803 				 dev->nodename);  in connect()
806 	err = xenbus_printf(xbt, dev->nodename, "physical-sector-size", "%u",  in connect()
810 				 dev->nodename);  in connect()
821 				 dev->nodename);  in connect()