NUMA topology checking will not check if instance can fit properly.

[Nikola Đipanov]

When testing weather the instance can fit into the host topology will currently not take into account the number of cells hte instance has, and will only claim matching cells and pass an instance if the matching cells fit.

So for example a 4 NUMA cell isntance would pass the claims test on a 2 NUMA cell host, as long as the first 2 cells fit, without considering that the whole instance will not actually fit.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/121843

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/121843
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=903ebc2b71bbfafc29fb42eebbd87ce7e04605f4
Submitter: Jenkins
Branch: master

commit 903ebc2b71bbfafc29fb42eebbd87ce7e04605f4
Author: Nikola Dipanov <email address hidden>
Date: Tue Sep 16 16:08:00 2014 +0200

    Fix NUMA fit testing in claims and filter class

    This patch makes sure that the overall topology is considered when
    checking wather a NUMA instance can fit on a NUMA host, as previously we
    would only check the corresponding cells without considering the overall
    topology.

    It adds a method for checking it on the VirtNUMAHostTopology class and
    make sure it's called when checking for placement in the scheduler and
    confirming claims on compute hosts.

    We also split out the method for getting the topology from a host
    as it can be reused in the scheduler now.

    Change-Id: I038c81a5241bf1fd2ce37f7eff69f89ecedf59ef
    Closes-bug: #1369984