[libvirt] [PATCH 2/8] qemu: migration: Properly export backend for NBD storage migration

[Eric Blake]

On 12/6/19 12:09 PM, Peter Krempa wrote:
> With -blockdev we must use the nodename as the export but we must keep
> the name of the export as it was before to ensure compatiblity.

compatibility

Makes sense - this is code on the destination, but we may be migrating 
storage from an older libvirt that wasn't using blockdev, so we must 
export the same name as expected by that older client (our goal is to 
allow migration as a way to upgrade from a -device command line to a 
-blockdev command line, without any guest downtime)

Reviewed-by: Eric Blake <eblake at redhat.com>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org