Merge PR #33194 into master

* refs/pull/33194/head:
	qa: add tests for mds_join_fs cluster affinity
	qa: update cluster warning message for removed MDS
	doc: add section on new mds_join_fs behavior
	mon/MDSMonitor: enforce mds_join_fs cluster affinity
	mon/MDSMonitor: use type of info.rank or mds_rank_t
	qa: accept operation on current fs status
	qa: add method to enable multifs
	qa: fix nested generator use
	qa: manage config changes through mons

Reviewed-by: Sage Weil <sage@redhat.com>
Reviewed-by: Kefu Chai <kchai@redhat.com>