Comment 4 for bug 1499615

Reviewed: https://review.openstack.org/256262
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=07e8c6728b5543dcec80ffad0c18972a7a6d2223
Submitter: Jenkins
Branch: stable/liberty

commit 07e8c6728b5543dcec80ffad0c18972a7a6d2223
Author: peter_wang <email address hidden>
Date: Tue Dec 8 03:18:31 2015 -0500

    VNX: Fix issue in deleting cg/cgsnapshot

    If user deletes a cg/cgsnapshot quickly after its creation,
    driver would report 'not found' warning, and return success
    for the deletion, but actually, the object underlying the VNX
    is not deleted.

    This fix tries to wait the cg and cg snapshot to be available
    to make sure it's eligible for deletion.

    liberty-backport-potential
    Closes-Bug: 1499615
    (cherry picked from commit f7b5655d188bfde96333760bbe634f45d4a16395)

    Change-Id: Ifae57b9e95e01b1789a37ac7c03e9aad65cd50f7