Comment 8 for bug 1235435

Reviewed: https://review.openstack.org/56504
Committed: http://github.com/openstack/nova/commit/651fac3d5d250d42e640c3ac113084bf0d2fa3b4
Submitter: Jenkins
Branch: master

commit 651fac3d5d250d42e640c3ac113084bf0d2fa3b4
Author: armando-migliaccio <email address hidden>
Date: Thu Nov 14 18:59:20 2013 -0800

    Remove reduntant call to update_instance_info_cache

    get_instance_nw_info calls _get_instance_nw_info,
    which is decorated with @refresh_cache. This in
    turn calls update_instance_info_cache, again. This
    is both expensive and more importantly dangerous because
    the method update_instance_info_cache may call
    _get_instance_nw_info itself, thus causing an infinite
    loop.

    Change-Id: Id8f0241d1c6609cf4e064ee6855228ae7de250e2
    Partial-bug: 1235435