Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/16435

Log:
commit 97542c9ead202e658406341a35ef4a15e0c93fe6
Author: Michael Still <mikal at stillhq.com>
Date:   Mon Nov 5 12:55:36 2012 +1100

    Don't verify image hashes if checksumming is disabled.
    
    There was a bug where we were checking base image checksums, even
    if checksumming was disabled, if there was already a cached checksum
    for the image. This resolves bug 1075017.
    
    DocImpact
    
    Change-Id: I38f5914cd9d6326fdf5e5d7f0f57885ff8b5ff32
    (cherry picked from commit 1442177d5d1c388d75e7d7f0316e2c2891f5b779)