Merge PR #18384 into master

* refs/pull/18384/head:
	mds: disable early reply for dir layout and quota related requests
	mds: make mksnap/setlayout wait for unsafe requests on other mds
	mds: don't rdlock locks in replica object while auth mds is recovering
	mds: move ScatterLock::state_flags into SimpleLock

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>