Merge pull request #22812 from smithfarm/wip-24705-mimic

mimic: cephfs: allow prohibiting user snapshots in CephFS

Reviewed-by: Nathan Cutler <ncutler@suse.com>

diff --cc src/mds/CDir.cc
Simple merge

diff --cc src/mds/CInode.cc
Simple merge

diff --cc src/mds/MDCache.cc
Simple merge

diff --cc src/mon/AuthMonitor.cc
Simple merge