Comment 4 for bug 1833079

The linked patch has actually been reverted upstream (my fault for not spotting that) and the following patch appears to be the one we actually want - https://github.com/ceph/ceph/commit/005f19eff0b4a92647e5847e306718be76704432

This new patch has a much narrower scope (just fixes get_fsid) but since that is the only problem we area currently observing I think its sufficient for requirements.