Comment 46 for bug 1404867

The stable/ocata changes have been dropped because the commit that introduced this bug was added in Pike:

https://github.com/openstack/nova/commit/63805735c25a54ad1b9b97e05080c1a6153d8e22

Before this, the compute would reserve the volume which means that it will be cleaned up on a normal delete. If scheduling fails, the volume won't be reserved anyways.