Comment 29 for bug 1713490

@Norman - Not a bad idea. The content is synced from the source already, just the size allocation is what can mismatch - it happens so early that it is local. It was suggested like 3 times (I'm sure you could find them on the ML-archive somewhere) or so to transfer the source-size as part of the initial migration meta-data (that would then need a new arg to qemu to specify the size, so it would be qemu arg + libvirt migration data + libvirt rendering that arg accordingly + capability checks for the same). But so far no one ever (neither upstream nor any distro) found the time to implement this feature.