BLOCK_GROUP_FLAG_FULLY_REMAPPED
test_bit(BLOCK_GROUP_FLAG_FULLY_REMAPPED, &block_group->runtime_flags)) {
!test_bit(BLOCK_GROUP_FLAG_FULLY_REMAPPED, &bg->runtime_flags)) {
set_bit(BLOCK_GROUP_FLAG_FULLY_REMAPPED, &bg->runtime_flags);
if (!test_bit(BLOCK_GROUP_FLAG_FULLY_REMAPPED, &src_bg->runtime_flags)) {
set_bit(BLOCK_GROUP_FLAG_FULLY_REMAPPED, &src_bg->runtime_flags);