OVS cleanup utility does not clean up veth pair

[Akihiro Motoki]

OVS interface driver with ovs_use_veth = True creates veth pair and adds an end of veth pair to OVS bridge.
It would be better that OVS cleanup utility cleans up these veth devices.

It is useful when ovs cleanup utility is called in stack.sh.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/18758

[Akihiro Motoki (amotoki)]

This is a wishlist rather an actual bug since it is just useful in devstack or similar environment to clean up veth paris and it is not related to the original bug that OVS ports remain across reboot.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/18758
Committed: http://github.com/openstack/quantum/commit/1b5730b42c6306e26ec5e803f3e349b203756ba8
Submitter: Jenkins
Branch: master

commit 1b5730b42c6306e26ec5e803f3e349b203756ba8
Author: Akihiro MOTOKI <email address hidden>
Date: Sun Dec 30 05:37:13 2012 +0900

    OVS cleanup utility removes veth pairs

    Fixes bug 1094185

    OVSInterfaceDriver plug() creates a veth pair and add it to an OVS
    bridge when ovs_use_veth=True. It is useful that OVS cleanup utility
    removes such veth paris in addition to removing OVS ports.

    Veth pairs to be removed are veth devices corresponding to ports
    removed when all_ovs_port==False. Veth pairs created to connect
    the integration bridge and physical bridges are not removed.

    Change-Id: Ia87f0464e69a45dd0bdfd907ac71a003df9fc23f

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/folsom
Review: https://review.openstack.org/27292