Merge PR #40129 into pacific

* refs/pull/40129/head:
	osd: PeeringState: implement an acting_set_writeable() function
	osd: PeeringState: fix a boolean conditional direction
	osd: PeeringState: fix stretch peering so PGs can go peered but not active
	osd: PeeringState: don't add acting-set OSDs to candidate set in stretch mode
	osd: PeeringState: fix calc_replicated_acting_stretch() syntax/logic
	osd: PeeringState: respect stretch peering constraints for async recovery
	osd: PeeringState: add a comment about using size as a proxy for activateable
	osd: check for is_stretch_pool() in stretch_set_can_peer()
	scripts: some additions to help with local testing
	script: set_up_stretch_mode: include OSDs in root=default so pg creation works

Reviewed-by: Josh Durgin <jdurgin@redhat.com>