Comment 9 for bug 1235358

Reviewed: https://review.openstack.org/52463
Committed: http://github.com/openstack/cinder/commit/6e287c0f2bb7d4994d50f1763f412277e4dac6f7
Submitter: Jenkins
Branch: master

commit 6e287c0f2bb7d4994d50f1763f412277e4dac6f7
Author: Xavier Queralt <email address hidden>
Date: Tue Oct 22 20:37:53 2013 +0200

    Fail when image is bigger than the volume

    When creating a new volume from a qcow2 image stored in glance, we will
    be given the physical size of the image instead of the virtual size.
    Most drivers will convert that image to raw after downloading for
    resizing it to the requested volume size afterwards.

    If the virtual size of the image is bigger than the requested one, the
    resulting volume might end up being unusable after the resize even
    though the creation went good.

    This patch will make the volume creation fail if the virtual size of
    the image exceeds the one of the requested volume.

    Closes-Bug: #1235358
    Change-Id: I254cd9e3acf5d9eb7eb913b37d27a14e97568dec