xen_blkbk_xenbus 536 drivers/block/xen-blkback/blkback.c struct xenbus_device *dev = xen_blkbk_xenbus(blkif->be); xen_blkbk_xenbus 392 drivers/block/xen-blkback/common.h struct xenbus_device *xen_blkbk_xenbus(struct backend_info *be);