Merge PR #31817 into master

* refs/pull/31817/head:
	mds: send delegated_inos in openc response
	mds: make take_ino just return 0 if it can't find one
	mds: add infrastructure for delegating inos from the prealloc set
	mds: fix dump of prealloc and used inos
	mds: don't warn when inodes are not allocated out sequentially
	mds: fix decoding version for EMetaBlob
	mds: remove MDRequestImpl::did_ino_allocation()
	mds: add a comment explaining what session_info_t is
	doc: fix awkward phrasing in caching.txt

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

diff --cc src/client/Client.cc
Simple merge

diff --cc src/client/Client.h
Simple merge

diff --cc src/common/options.cc
Simple merge

diff --cc src/mds/Server.cc
Simple merge

diff --cc src/mds/mdstypes.cc
Simple merge

diff --cc src/mds/mdstypes.h
Simple merge