Merge PR #25254 into master

* refs/pull/25254/head:
	mds: optimize resuming stale caps
	client: avoid unnecessary wakeup when handling RENEWCAPS
	client: set cap->wanted when adding new cap
	client: don't wakeup cap waiters twice when mds recovered
	mds: optimize revoking stale caps
	mds: put notable caps at the front of session's caps list
	mds: track if client has writeable range in Capability
	mds: add session pointer to Capability
	client: skip updating 'wanted' caps if caps are already issued
	client: sync 'retain caps' logical from kernel client

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/mds/CInode.cc
Simple merge

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

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

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

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

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