Merge pull request #29283 from myoungwon/wip-refcount-snap

osd: refcounting chunks for snapshotted manifest object

Reviewed-by: Samuel Just <sjust@redhat.com>
Reviewed-by: Greg Farnum <gfarnum@redhat.com> (portions Sam wrote)

diff --cc src/include/rados/librados.hpp
Simple merge

diff --cc src/librados/librados_cxx.cc
Simple merge

diff --cc src/osd/PrimaryLogPG.cc
Simple merge

diff --cc src/osd/PrimaryLogPG.h
Simple merge

diff --cc src/osd/osd_types.h
Simple merge

diff --cc src/tools/rados/rados.cc
Simple merge