Comment 4 for bug 1833902

Reviewed: https://review.opendev.org/667035
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=83a5429db447b17110a7fc192a61879e84f5e5a2
Submitter: Zuul
Branch: master

commit 83a5429db447b17110a7fc192a61879e84f5e5a2
Author: Slawek Kaplonski <email address hidden>
Date: Mon Jun 24 07:50:37 2019 +0000

    Revert "Revert resize: wait for events according to hybrid plug"

    This reverts commit 19f9b37721d9bc13bc1ed35a4f368b1d21b10a5b.

    Commit 19f9b37721d9bc13bc1ed35a4f368b1d21b10a5b introduced
    a regression and caused errors on Neutron CI jobs which run
    on a single node with iptables_hybrid firewall driver.
    This is because the nova change made the resize revert flow
    wait for neutron-vif-plugged events in the ComputeManager
    when the port's host binding changes for iptables_hybrid
    ports but for those types of ports, Neutron does not send
    the event if the host does not change - which is the case
    for a same-host resize being reverted.

    Change-Id: I77b3639435c671bacca9cdfc1aa203e44a2fb042
    Closes-Bug: #1833902