Comment 1 for bug 690401

Also note that if there are locks remaining in /var/lib/nfs/sm/... and this race occurs, sm-notify will fail to notify the nfs server about locks, but exit 0 anyway. backup_hosts() will attempt to move the files into sm.bak and, that having failed (non-fatally) due to a readonly filesystem, get_hosts() will decide there are no hosts to notify and exit 0.