Comment 4 for bug 1544128

The fix is present in Mitaka and downstream 9.0 branch:

rpodolyaka@rpodolyaka-pc:~/src/nova$ git branch -a --contains db7fd539f261ea53f6c005478049424b9dae1543 | grep mirantis
  remotes/mirantis/9.0/mitaka
  remotes/mirantis/master
  remotes/mirantis/stable/mitaka
rpodolyaka@rpodolyaka-pc:~/src/nova$ git show db7fd539f261ea53f6c005478049424b9dae1543
commit db7fd539f261ea53f6c005478049424b9dae1543
Author: Matthew Booth <email address hidden>
Date: Fri Mar 4 18:34:21 2016 +0000

    libvirt: Fix resize of instance with deleted glance image

    finish_migration() in the libvirt driver was attempting to resize an
    image before checking that its backing file was present. This patch
    re-orders these 2 operations. In doing so, we also have to resolve an
    overloading of the 'disk_info' variable.

    Closes-Bug: #1546778

    Change-Id: I03e08fae97416ebe5cdedcf238a06d1b90203c5d