Merge pull request #9651 from renhwztetecs/renhw-wip-mdcache

mds: fix mdsmap->get_metadata_pool() return to int64_t

Reviewed-by: John Spray <john.spray@redhat.com>

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

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

diff --cc src/tools/cephfs/DataScan.cc
Simple merge

diff --cc src/tools/cephfs/JournalTool.cc
Simple merge

diff --cc src/tools/cephfs/Resetter.cc
Simple merge

diff --cc src/tools/cephfs/TableTool.cc
Simple merge