xchk_dquot_iter
while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
int xchk_dquot_iter(struct xchk_dqiter *cursor, struct xfs_dquot **dqpp);
while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
DEFINE_SCRUB_DQITER_EVENT(xchk_dquot_iter);