Comment 10 for bug 1946059

Reviewed: https://review.opendev.org/c/openstack/cinder/+/859841
Committed: https://opendev.org/openstack/cinder/commit/ebc27d371450dccbba49443ab9094484a4f9905c
Submitter: "Zuul (22348)"
Branch: stable/wallaby

commit ebc27d371450dccbba49443ab9094484a4f9905c
Author: whoami-rajat <email address hidden>
Date: Tue Oct 5 01:43:18 2021 -0400

    NFS: Fix generic revert to snapshot flow

    While reverting to a snapshot with generic flow, we create a
    temporary volume from snapshot and copy data from temporary to the
    original volume.
    While creating this temporary volume, the snapshot is in 'restoring'
    state whereas the remotefs driver only accepts 'available' and
    'backing-up' states for this operation.
    This patch adds the 'restoring' state to the list of acceptable states.

    Closes-Bug: 1946059

    Change-Id: Id1e40fd42b88c63dbbba2aaae77c40660ddac4c7
    (cherry picked from commit 862edca0deb366ea980485359216fea020a03c9e)
    (cherry picked from commit 1dc950b826acdab740cbcfbe119c0c31a9833a07)
    (cherry picked from commit d941ad28f5834bdb3c1413ca03046ac7bcf2c5fd)