Comment 4 for bug 1358960

Reviewed: https://review.openstack.org/115726
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=36406c9bb0bac99b5daf1b8194df73685cbe49ea
Submitter: Jenkins
Branch: stable/icehouse

commit 36406c9bb0bac99b5daf1b8194df73685cbe49ea
Author: Vishvananda Ishaya <email address hidden>
Date: Tue Aug 19 16:59:02 2014 -0700

    Cache snapshots in request for extension

    The extended snapshots extension makes a separate db request for
    snapshots which is horribly inefficent. In addition it causes an
    issue when using all_tenants=1, because the second request doesn't
    pass in the filter. Fix this by caching the snapshot in the request
    object like we do for volumes and retrieve the cached object in the
    extension.

    Change-Id: Ia943438c8d48accb7f62c43f07642c3da2fe34ab
    Resolves-bug: #1358960
    (cherry picked from commit 4f0d1d36136bcb33f578b2999812f36cadd71cec)

    Conflicts:
     cinder/api/contrib/extended_snapshot_attributes.py

    Change-Id: Ia943438c8d48accb7f62c43f07642c3da2fe34ab