147 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
150 		return sh->qd_idx + 1;  in raid6_d0()
172 	if (idx == sh->qd_idx)  in raid6_idx_to_slot()
966 	int qd_idx = sh->qd_idx;  in ops_run_compute6_1()  local
991 	if (target == qd_idx) {  in ops_run_compute6_1()
1003 			if (i == target || i == qd_idx)  in ops_run_compute6_1()
1077 			int qd_idx = sh->qd_idx;  in ops_run_compute6_2()  local
1080 			if (target == qd_idx)  in ops_run_compute6_2()
1087 				if (i == data_target || i == qd_idx)  in ops_run_compute6_2()
1209 	int qd_idx = sh->qd_idx;  in ops_complete_reconstruct()  local
1225 		if (dev->written || i == pd_idx || i == qd_idx) {  in ops_complete_reconstruct()
1324 		if (sh->pd_idx == i || sh->qd_idx == i)  in ops_run_reconstruct6()
1332 		set_bit(R5_Discard, &sh->dev[sh->qd_idx].flags);  in ops_run_reconstruct6()
1362 	int qd_idx = sh->qd_idx;  in ops_run_check_p()  local
1377 		if (i == pd_idx || i == qd_idx)  in ops_run_check_p()
1969 	int pd_idx, qd_idx;  in raid5_compute_sector()  local
1997 	pd_idx = qd_idx = -1;  in raid5_compute_sector()
2038 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2041 				qd_idx = 0;  in raid5_compute_sector()
2047 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2050 				qd_idx = 0;  in raid5_compute_sector()
2056 			qd_idx = (pd_idx + 1) % raid_disks;  in raid5_compute_sector()
2061 			qd_idx = (pd_idx + 1) % raid_disks;  in raid5_compute_sector()
2067 			qd_idx = 1;  in raid5_compute_sector()
2072 			qd_idx = data_disks + 1;  in raid5_compute_sector()
2080 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2083 				qd_idx = 0;  in raid5_compute_sector()
2096 			qd_idx = pd_idx + 1;  in raid5_compute_sector()
2099 				qd_idx = 0;  in raid5_compute_sector()
2108 			qd_idx = (pd_idx + raid_disks - 1) % raid_disks;  in raid5_compute_sector()
2118 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2125 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2131 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2137 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2143 			qd_idx = raid_disks - 1;  in raid5_compute_sector()
2154 		sh->qd_idx = qd_idx;  in raid5_compute_sector()
2213 		if (i == sh->qd_idx)  in compute_blocknr()
2278 		|| sh2.qd_idx != sh->qd_idx) {  in compute_blocknr()
2362 		int qd_idx = sh->qd_idx;  in schedule_reconstruction()  local
2363 		struct r5dev *dev = &sh->dev[qd_idx];  in schedule_reconstruction()
2797 		if (sh->qd_idx >= 0) {  in handle_stripe_clean_event()
2798 			clear_bit(R5_Discard, &sh->dev[sh->qd_idx].flags);  in handle_stripe_clean_event()
2799 			clear_bit(R5_UPTODATE, &sh->dev[sh->qd_idx].flags);  in handle_stripe_clean_event()
2897 			    i != sh->pd_idx && i != sh->qd_idx &&  in handle_stripe_dirtying()
3032 	int qd_idx = sh->qd_idx;  in handle_parity_checks6()  local
3115 			dev = &sh->dev[qd_idx];  in handle_parity_checks6()
3173 						&sh->dev[qd_idx].flags);  in handle_parity_checks6()
3174 					*target = qd_idx;  in handle_parity_checks6()
3200 		if (i != sh->pd_idx && i != sh->qd_idx) {  in handle_stripe_expansion()
3232 				    j != sh2->qd_idx &&  in handle_stripe_expansion()
3473 	       atomic_read(&sh->count), sh->pd_idx, sh->qd_idx,  in handle_stripe()
3530 		BUG_ON(sh->qd_idx >= 0 &&  in handle_stripe()
3531 		       !test_bit(R5_UPTODATE, &sh->dev[sh->qd_idx].flags) &&  in handle_stripe()
3532 		       !test_bit(R5_Discard, &sh->dev[sh->qd_idx].flags));  in handle_stripe()
3536 				(i == sh->pd_idx || i == sh->qd_idx ||  in handle_stripe()
3543 				    ((i == sh->pd_idx || i == sh->qd_idx)  &&  in handle_stripe()
3559 	qdev = &sh->dev[sh->qd_idx];  in handle_stripe()
3560 	s.q_failed = (s.failed >= 1 && s.failed_num[0] == sh->qd_idx)  in handle_stripe()
3561 		|| (s.failed >= 2 && s.failed_num[1] == sh->qd_idx)  in handle_stripe()
4203 			if (d == sh->pd_idx || d == sh->qd_idx)  in make_discard_request()
4216 			if (d == sh->pd_idx || d == sh->qd_idx)  in make_discard_request()
4555 			    j == sh->qd_idx)  in reshape_request()