find_uquot
struct uquot * find_uquot(struct uquot_hash *, uint32_t, int);
uq = find_uquot(a->uquot_hash, uid, 0);
uq_u = find_uquot(uquot_user_hash, uid, 1);
uq_g = find_uquot(uquot_group_hash, gid, 1);