FMR_OF_EXTENT_MAP
if (low_key->fmr_flags & (FMR_OF_SPECIAL_OWNER | FMR_OF_EXTENT_MAP)) {
FMR_OF_EXTENT_MAP))) {
fmr.fmr_flags |= FMR_OF_EXTENT_MAP;
if (fmr->fmr_flags & FMR_OF_EXTENT_MAP)