if_dqblk
static void copy_to_if_dqblk(struct if_dqblk *dst, struct qc_dqblk *src)
struct if_dqblk idq;
copy_to_if_dqblk((struct if_dqblk *)&idq, &fdq);
static void copy_from_if_dqblk(struct qc_dqblk *dst, struct if_dqblk *src)
struct if_dqblk idq;