Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/21591

Log:
commit 7bcbe1cacb9326b8d2ad3c3ac0952599e87623f1
Author: Rafi Khardalian <rafi at metacloud.com>
Date:   Sun Feb 10 03:53:43 2013 +0000

    Libvirt: Implement snapshots for LVM-backed roots
    
    Uses the built-in LVM snapshotting mechanism to create a new
    snapshot, use qemu-img to extract the full root into an image file,
    then delete the snapshot volume. Although we typically zero deleted
    LVM volumes manually, this is not necessary for snapshots, as LVM
    handles it for us (per the documentation).
    
    Change-Id: I82f21488671ffa3be3d0feba73ff631fa2a51ec0
    Fixes: Bug 1120809
    Flags: DocImpact