Merge pull request #28373 from xiexingguo/wip-40104

mon, osd: parallel clean_pg_upmaps

Reviewed-by: Sage Weil <sage@redhat.com>

diff --cc src/mon/OSDMonitor.cc
Simple merge

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

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

diff --cc src/test/osd/TestOSDMap.cc
Simple merge