127 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
130 		return sh->qd_idx + 1;  in raid6_d0()
152 	if (idx == sh->qd_idx)  in raid6_idx_to_slot()
798 	while (dd_idx == sh->pd_idx || dd_idx == sh->qd_idx)  in stripe_add_to_batch_list()
1478 		if (i == sh->qd_idx || i == sh->pd_idx ||  in set_syndrome_sources()
1503 	int qd_idx = sh->qd_idx;  in ops_run_compute6_1()  local
1529 	if (target == qd_idx) {  in ops_run_compute6_1()
1541 			if (i == target || i == qd_idx)  in ops_run_compute6_1()
1616 			int qd_idx = sh->qd_idx;  in ops_run_compute6_2()  local
1619 			if (target == qd_idx)  in ops_run_compute6_2()
1626 				if (i == data_target || i == qd_idx)  in ops_run_compute6_2()
1806 	int qd_idx = sh->qd_idx;  in ops_complete_reconstruct()  local
1822 		if (dev->written || i == pd_idx || i == qd_idx) {  in ops_complete_reconstruct()
1950 		if (sh->pd_idx == i || sh->qd_idx == i)  in ops_run_reconstruct6()
1958 		set_bit(R5_Discard, &sh->dev[sh->qd_idx].flags);  in ops_run_reconstruct6()
2011 	int qd_idx = sh->qd_idx;  in ops_run_check_p()  local
2027 		if (i == pd_idx || i == qd_idx)  in ops_run_check_p()
2713 	int pd_idx, qd_idx;  in raid5_compute_sector()  local
2741 	pd_idx = qd_idx = -1;  in raid5_compute_sector()
2782 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2785 				qd_idx = 0;  in raid5_compute_sector()
2791 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2794 				qd_idx = 0;  in raid5_compute_sector()
2800 			qd_idx = (pd_idx + 1) % raid_disks;  in raid5_compute_sector()
2805 			qd_idx = (pd_idx + 1) % raid_disks;  in raid5_compute_sector()
2811 			qd_idx = 1;  in raid5_compute_sector()
2816 			qd_idx = data_disks + 1;  in raid5_compute_sector()
2824 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2827 				qd_idx = 0;  in raid5_compute_sector()
2840 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2843 				qd_idx = 0;  in raid5_compute_sector()
2852 			qd_idx = (pd_idx + raid_disks - 1) % raid_disks;  in raid5_compute_sector()
2862 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2869 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2875 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2881 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2887 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2898 		sh->qd_idx = qd_idx;  in raid5_compute_sector()
2955 		if (i == sh->qd_idx)  in raid5_compute_blocknr()
3020 		|| sh2.qd_idx != sh->qd_idx) {  in raid5_compute_blocknr()
3088 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3137 			(!(test_bit(R5_UPTODATE, &sh->dev[qd_idx].flags) ||  in schedule_reconstruction()
3138 			   test_bit(R5_Wantcompute, &sh->dev[qd_idx].flags))));  in schedule_reconstruction()
3142 			if (i == pd_idx || i == qd_idx)  in schedule_reconstruction()
3174 		int qd_idx = sh->qd_idx;  in schedule_reconstruction()  local
3175 		struct r5dev *dev = &sh->dev[qd_idx];  in schedule_reconstruction()
3601 		    s->failed_num[i] != sh->qd_idx &&  in need_this_block()
3640 		    ((sh->qd_idx >= 0 && sh->pd_idx == disk_idx) ||  in fetch_block()
3806 		if (sh->qd_idx >= 0) {  in handle_stripe_clean_event()
3807 			clear_bit(R5_Discard, &sh->dev[sh->qd_idx].flags);  in handle_stripe_clean_event()
3808 			clear_bit(R5_UPTODATE, &sh->dev[sh->qd_idx].flags);  in handle_stripe_clean_event()
3887 		     i == sh->pd_idx || i == sh->qd_idx ||  in handle_stripe_dirtying()
3899 		    i != sh->pd_idx && i != sh->qd_idx &&  in handle_stripe_dirtying()
3952 			     i == sh->pd_idx || i == sh->qd_idx ||  in handle_stripe_dirtying()
3979 			    i != sh->pd_idx && i != sh->qd_idx &&  in handle_stripe_dirtying()
4124 	int qd_idx = sh->qd_idx;  in handle_parity_checks6()  local
4208 			dev = &sh->dev[qd_idx];  in handle_parity_checks6()
4271 						&sh->dev[qd_idx].flags);  in handle_parity_checks6()
4272 					*target = qd_idx;  in handle_parity_checks6()
4299 		if (i != sh->pd_idx && i != sh->qd_idx) {  in handle_stripe_expansion()
4331 				    j != sh2->qd_idx &&  in handle_stripe_expansion()
4700 	       atomic_read(&sh->count), sh->pd_idx, sh->qd_idx,  in handle_stripe()
4767 		BUG_ON(sh->qd_idx >= 0 &&  in handle_stripe()
4768 		       !test_bit(R5_UPTODATE, &sh->dev[sh->qd_idx].flags) &&  in handle_stripe()
4769 		       !test_bit(R5_Discard, &sh->dev[sh->qd_idx].flags));  in handle_stripe()
4773 				(i == sh->pd_idx || i == sh->qd_idx ||  in handle_stripe()
4783 				    ((i == sh->pd_idx || i == sh->qd_idx)  &&  in handle_stripe()
4799 	qdev = &sh->dev[sh->qd_idx];  in handle_stripe()
4800 	s.q_failed = (s.failed >= 1 && s.failed_num[0] == sh->qd_idx)  in handle_stripe()
4801 		|| (s.failed >= 2 && s.failed_num[1] == sh->qd_idx)  in handle_stripe()
5519 			if (d == sh->pd_idx || d == sh->qd_idx)  in make_discard_request()
5533 			if (d == sh->pd_idx || d == sh->qd_idx)  in make_discard_request()
5913 			    j == sh->qd_idx)  in reshape_request()