Comment 3 for bug 967845

Reviewed: https://review.openstack.org/6024
Committed: http://github.com/openstack/nova/commit/cd83d0a2f4e7f170c4042ff3ac39fa27f6a7d46a
Submitter: Jenkins
Branch: milestone-proposed

commit cd83d0a2f4e7f170c4042ff3ac39fa27f6a7d46a
Author: Michael Still <email address hidden>
Date: Wed Mar 28 21:13:26 2012 +1100

    Touch in use image files when they're checked.

    It was intended that FLAGS.remove_unused_resized_minimum_age_seconds
    would indicate the number of seconds a base file was unused before it
    was removed. This however isn't true at the moment. Because instances
    are COW mostly, this will be the time since the resize occurred,
    which is normally instantly true once the image isn't being used any
    more. This small patch corrects that by touching the base image during
    check cycles which find it in use. Resolves bug 967845.

    Change-Id: I75bf06cf758c9a2d7a8bde5ce67c789d7e299174