119 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
122 		return sh->qd_idx + 1;  in raid6_d0()
144 	if (idx == sh->qd_idx)  in raid6_idx_to_slot()
871 	while (dd_idx == sh->pd_idx || dd_idx == sh->qd_idx)  in stripe_add_to_batch_list()
1567 		if (i == sh->qd_idx || i == sh->pd_idx ||  in set_syndrome_sources()
1599 	int qd_idx = sh->qd_idx;  in ops_run_compute6_1()  local
1627 	if (target == qd_idx) {  in ops_run_compute6_1()
1640 			if (i == target || i == qd_idx)  in ops_run_compute6_1()
1723 			int qd_idx = sh->qd_idx;  in ops_run_compute6_2()  local
1726 			if (target == qd_idx)  in ops_run_compute6_2()
1733 				if (i == data_target || i == qd_idx)  in ops_run_compute6_2()
1932 	int qd_idx = sh->qd_idx;  in ops_complete_reconstruct()  local
1948 		if (dev->written || i == pd_idx || i == qd_idx) {  in ops_complete_reconstruct()
2088 		if (sh->pd_idx == i || sh->qd_idx == i)  in ops_run_reconstruct6()
2096 		set_bit(R5_Discard, &sh->dev[sh->qd_idx].flags);  in ops_run_reconstruct6()
2151 	int qd_idx = sh->qd_idx;  in ops_run_check_p()  local
2171 		if (i == pd_idx || i == qd_idx)  in ops_run_check_p()
2770 			if (sh->qd_idx >= 0 && sh->pd_idx == i)  in raid5_end_read_request()
2919 	int pd_idx, qd_idx;  in raid5_compute_sector()  local
2947 	pd_idx = qd_idx = -1;  in raid5_compute_sector()
2988 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2991 				qd_idx = 0;  in raid5_compute_sector()
2997 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
3000 				qd_idx = 0;  in raid5_compute_sector()
3006 			qd_idx = (pd_idx + 1) % raid_disks;  in raid5_compute_sector()
3011 			qd_idx = (pd_idx + 1) % raid_disks;  in raid5_compute_sector()
3017 			qd_idx = 1;  in raid5_compute_sector()
3022 			qd_idx = data_disks + 1;  in raid5_compute_sector()
3030 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
3033 				qd_idx = 0;  in raid5_compute_sector()
3046 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
3049 				qd_idx = 0;  in raid5_compute_sector()
3058 			qd_idx = (pd_idx + raid_disks - 1) % raid_disks;  in raid5_compute_sector()
3068 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
3075 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
3081 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
3087 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
3093 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
3104 		sh->qd_idx = qd_idx;  in raid5_compute_sector()
3161 		if (i == sh->qd_idx)  in raid5_compute_blocknr()
3226 		|| sh2.qd_idx != sh->qd_idx) {  in raid5_compute_blocknr()
3294 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3343 			(!(test_bit(R5_UPTODATE, &sh->dev[qd_idx].flags) ||  in schedule_reconstruction()
3344 			   test_bit(R5_Wantcompute, &sh->dev[qd_idx].flags))));  in schedule_reconstruction()
3348 			if (i == pd_idx || i == qd_idx)  in schedule_reconstruction()
3380 		int qd_idx = sh->qd_idx;  in schedule_reconstruction()  local
3381 		struct r5dev *dev = &sh->dev[qd_idx];  in schedule_reconstruction()
3796 		     s->failed_num[i] == sh->qd_idx) &&  in need_this_block()
3818 		    s->failed_num[i] != sh->qd_idx &&  in need_this_block()
3857 		    ((sh->qd_idx >= 0 && sh->pd_idx == disk_idx) ||  in fetch_block()
4023 		if (sh->qd_idx >= 0) {  in handle_stripe_clean_event()
4024 			clear_bit(R5_Discard, &sh->dev[sh->qd_idx].flags);  in handle_stripe_clean_event()
4025 			clear_bit(R5_UPTODATE, &sh->dev[sh->qd_idx].flags);  in handle_stripe_clean_event()
4104 		     i == sh->pd_idx || i == sh->qd_idx ||  in handle_stripe_dirtying()
4116 		    i != sh->pd_idx && i != sh->qd_idx &&  in handle_stripe_dirtying()
4169 			     i == sh->pd_idx || i == sh->qd_idx ||  in handle_stripe_dirtying()
4194 			    i != sh->pd_idx && i != sh->qd_idx &&  in handle_stripe_dirtying()
4337 	int qd_idx = sh->qd_idx;  in handle_parity_checks6()  local
4421 			dev = &sh->dev[qd_idx];  in handle_parity_checks6()
4492 						&sh->dev[qd_idx].flags);  in handle_parity_checks6()
4493 					*target = qd_idx;  in handle_parity_checks6()
4520 		if (i != sh->pd_idx && i != sh->qd_idx) {  in handle_stripe_expansion()
4553 				    j != sh2->qd_idx &&  in handle_stripe_expansion()
4926 	       atomic_read(&sh->count), sh->pd_idx, sh->qd_idx,  in handle_stripe()
4993 		BUG_ON(sh->qd_idx >= 0 &&  in handle_stripe()
4994 		       !test_bit(R5_UPTODATE, &sh->dev[sh->qd_idx].flags) &&  in handle_stripe()
4995 		       !test_bit(R5_Discard, &sh->dev[sh->qd_idx].flags));  in handle_stripe()
4999 				(i == sh->pd_idx || i == sh->qd_idx ||  in handle_stripe()
5009 				    ((i == sh->pd_idx || i == sh->qd_idx)  &&  in handle_stripe()
5025 	qdev = &sh->dev[sh->qd_idx];  in handle_stripe()
5026 	s.q_failed = (s.failed >= 1 && s.failed_num[0] == sh->qd_idx)  in handle_stripe()
5027 		|| (s.failed >= 2 && s.failed_num[1] == sh->qd_idx)  in handle_stripe()
5719 			if (d == sh->pd_idx || d == sh->qd_idx)  in make_discard_request()
5733 			if (d == sh->pd_idx || d == sh->qd_idx)  in make_discard_request()
6113 			    j == sh->qd_idx)  in reshape_request()