I think ganesha needs this patch: https://github.com/nfs-ganesha/nfs-ganesha/commit/101cfb8b9df3582a7d252ef28ce42240dc8aa41a
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Red Hat Ceph Storage 5.0 bug fix and enhancement), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:3294