qnx6_mmi_super_block
struct qnx6_mmi_super_block *sb)
struct qnx6_mmi_super_block *sb1, *sb2;
sb1 = (struct qnx6_mmi_super_block *)bh1->b_data;
sb1 = (struct qnx6_mmi_super_block *)bh1->b_data;
sb2 = (struct qnx6_mmi_super_block *)bh2->b_data;