MF_DEFER
bitset(MF_DEFER, map->map_mflags))
map->map_mflags |= MF_DEFER;
map->map_mflags |= MF_DEFER;
map->map_mflags |= MF_DEFER;
map->map_mflags |= MF_DEFER;
bitset(MF_DEFER, map->map_mflags))
map->map_mflags &= ~MF_DEFER;
map->map_mflags |= MF_DEFER;
map->map_mflags |= MF_DEFER;
map->map_mflags |= MF_DEFER;
bitset(MF_DEFER, map->map_mflags))
map->map_mflags |= MF_DEFER;