Merge PR #47891 into pacific

Merge PR #47891 into pacific

* refs/pull/47891/head:
	qa: add a upgrade test suite from nautilus and test the new getvxattr op
	qa: make filesystem to be compatible with nautilus for blocklist
	qa: make filesystem to be compatible with nautilus when creating pools
	test/libcephfs: add newops test case
	client: fail the request if the peer MDS doesn't support getvxattr op
	mds: add CEPHFS_FEATURE_OP_GETVXATTR feature bit support
	mds: notify clients if the session has already opened
	Rename/re-symlink whitelist_*.yaml

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