public RegionInfo getRegionInfo() {
    return region.getRegionInfo();
  }
Services a Store needs from a Region. RegionServicesForStores class is the interface through
which memstore access services at the region level. For example, when using alternative memory
formats or due to compaction the memstore needs to take occasional lock and update size counters
at the region level.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServicesForStores.java