Merge pull request #24405 from dillaman/wip-36143-luminous

luminous: librbd: blacklisted client might not notice it lost the lock

Reviewed-by: Mykola Golub <mgolub@mirantis.com>

diff --cc src/librbd/Operations.cc
Simple merge

diff --cc src/test/rbd_mirror/image_sync/test_mock_ObjectCopyRequest.cc
Simple merge

diff --cc src/tools/rbd_mirror/image_sync/ObjectCopyRequest.cc
Simple merge