Comment 1 for bug 1670642

Reviewed: https://review.openstack.org/441989
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=d629d4e42c04756444a79e9ac15f3f2192c47b52
Submitter: Jenkins
Branch: master

commit d629d4e42c04756444a79e9ac15f3f2192c47b52
Author: Evgeny Antyshev <email address hidden>
Date: Mon Mar 6 14:27:06 2017 +0000

    get_model method missing for Ploop image

    Image.get_model is called in partition injection code,
    and now inject partition attempt fails unconditionally.
    This patch makes use of disk/api.py inject_data failure tolerance:
    it doesn't fail unless injected data is mandatory.

    Closes-Bug: 1670642
    Change-Id: I6c68693be818219f78d6fcda019b867066396b29