Comment 12 for bug 1960206

Reviewed: https://review.opendev.org/c/openstack/cinder/+/876474
Committed: https://opendev.org/openstack/cinder/commit/84693e0207cfc34a6b99c50066f3d1846bd4050a
Submitter: "Zuul (22348)"
Branch: stable/xena

commit 84693e0207cfc34a6b99c50066f3d1846bd4050a
Author: Gorka Eguileor <email address hidden>
Date: Wed Feb 16 17:03:41 2022 +0100

    RBD: Fix total_capacity

    Ceph has changed the meaning of the ``bytes_used`` column in the pools
    reported by the ``df`` command, which means that in some deployments the
    rbd driver is not reporting the expected information ot the schedulers.

    The information we should be used for the calculations is returned in
    the ``stored`` field in those systems.

    This patch uses ``stored`` when present and fallbacks to ``bytes_used``
    if not.

    Closes-Bug: #1960206
    Change-Id: I0ca25789a0b279d82f766091235f24f429405da6
    (cherry picked from commit 86d9ec5d5932557ade18e7893cc2b8f564b5b2d8)
    (cherry picked from commit 97926fb888a6cdb96640ebe4e06785e6ce198226)
    (cherry picked from commit 2f798cb06a34a669459f2de6ab55d06aa985d221)