345 	conf->mirrors[r10_bio->devs[slot].devnum].head_position =  in update_head_pos()
467 		rdev = conf->mirrors[dev].replacement;  in raid10_end_write_request()
471 		rdev = conf->mirrors[dev].rdev;  in raid10_end_write_request()
711  * If there are 2 mirrors in the same 2 devices, performance degrades
760 		rdev = conf->mirrors[disk].replacement;  in read_balance()
764 			rdev = conf->mirrors[disk].rdev;  in read_balance()
831 					   conf->mirrors[disk].head_position);  in read_balance()
1175 		err_rdev = conf->mirrors[disk].rdev;  in raid10_read_request()
1259 	rdev = replacement ? conf->mirrors[devnum].replacement :  in raid10_write_one_disk()
1260 			     conf->mirrors[devnum].rdev;  in raid10_write_one_disk()
1273 				     &conf->mirrors[devnum].rdev->flags)  in raid10_write_one_disk()
1302 		rdev = conf->mirrors[i].rdev;  in wait_blocked_dev()
1327 		rrdev = conf->mirrors[i].replacement;  in wait_blocked_dev()
1428 		rdev = conf->mirrors[d].rdev;  in raid10_write_request()
1429 		rrdev = conf->mirrors[d].replacement;  in raid10_write_request()
1464 				 * atomically write other mirrors, but the  in raid10_write_request()
1521 		struct md_rdev *rdev = conf->mirrors[d].rdev;  in raid10_write_request()
1522 		struct md_rdev *rrdev = conf->mirrors[d].replacement;  in raid10_write_request()
1599 	rdev = repl ? conf->mirrors[dev].replacement :  in raid10_end_discard_request()
1600 		      conf->mirrors[dev].rdev;  in raid10_end_discard_request()
1763 		rdev = conf->mirrors[disk].rdev;  in raid10_handle_discard()
1764 		rrdev = conf->mirrors[disk].replacement;  in raid10_handle_discard()
1823 			struct md_rdev *rdev = conf->mirrors[disk].rdev;  in raid10_handle_discard()
1837 			struct md_rdev *rrdev = conf->mirrors[disk].replacement;  in raid10_handle_discard()
1929 		struct md_rdev *rdev = READ_ONCE(conf->mirrors[i].rdev);  in raid10_status()
1961 			    (rdev = conf->mirrors[this].rdev) &&  in _enough()
2046 		rdev = conf->mirrors[i].rdev;  in print_conf()
2076 		tmp = conf->mirrors + i;  in raid10_spare_active()
2133 	    conf->mirrors[rdev->saved_raid_disk].rdev == NULL)  in raid10_add_disk()
2138 		p = &conf->mirrors[mirror];  in raid10_add_disk()
2162 		p = &conf->mirrors[repl_slot];  in raid10_add_disk()
2188 	p = conf->mirrors + number;  in raid10_remove_disk()
2240 			   &conf->mirrors[d].rdev->corrected_errors);  in __end_sync_read()
2245 	rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev);  in __end_sync_read()
2311 		rdev = conf->mirrors[d].replacement;  in end_sync_write()
2313 		rdev = conf->mirrors[d].rdev;  in end_sync_write()
2391 		rdev = conf->mirrors[d].rdev;  in sync_request_write()
2425 		bio_reset(tbio, conf->mirrors[d].rdev->bdev, REQ_OP_WRITE);  in sync_request_write()
2436 		atomic_inc(&conf->mirrors[d].rdev->nr_pending);  in sync_request_write()
2439 		if (test_bit(FailFast, &conf->mirrors[d].rdev->flags))  in sync_request_write()
2441 		tbio->bi_iter.bi_sector += conf->mirrors[d].rdev->data_offset;  in sync_request_write()
2504 		rdev = conf->mirrors[dr].rdev;  in fix_recovery_read_error()
2512 			rdev = conf->mirrors[dw].rdev;  in fix_recovery_read_error()
2534 			if (rdev != conf->mirrors[dw].rdev) {  in fix_recovery_read_error()
2536 				struct md_rdev *rdev2 = conf->mirrors[dw].rdev;  in fix_recovery_read_error()
2544 					conf->mirrors[dw].recovery_disabled  in fix_recovery_read_error()
2588 		atomic_inc(&conf->mirrors[d].rdev->nr_pending);  in recovery_request_write()
2592 		atomic_inc(&conf->mirrors[d].replacement->nr_pending);  in recovery_request_write()
2621  *	1.	Retries failed read operations on working mirrors.
2636 	rdev = conf->mirrors[d].rdev;  in fix_read_error()
2659 			rdev = conf->mirrors[d].rdev;  in fix_read_error()
2688 			rdev = conf->mirrors[dn].rdev;  in fix_read_error()
2709 			rdev = conf->mirrors[d].rdev;  in fix_read_error()
2741 			rdev = conf->mirrors[d].rdev;  in fix_read_error()
2787 	struct md_rdev *rdev = conf->mirrors[r10_bio->devs[i].devnum].rdev;  in narrow_write_error()
2896 			rdev = conf->mirrors[dev].rdev;  in handle_write_completed()
2912 			rdev = conf->mirrors[dev].replacement;  in handle_write_completed()
2936 			rdev = conf->mirrors[dev].rdev;  in handle_write_completed()
2950 			rdev = conf->mirrors[dev].replacement;  in handle_write_completed()
3059 		if (conf->mirrors[i].replacement)  in init_resync()
3244 						conf->mirrors[i].replacement;  in raid10_sync_request()
3267 			 * recovery fails, set mirrors.recovery_disabled,  in raid10_sync_request()
3270 			conf->mirrors[error_disk].recovery_disabled =  in raid10_sync_request()
3326 			struct raid10_info *mirror = &conf->mirrors[i];  in raid10_sync_request()
3391 				struct md_rdev *rdev = conf->mirrors[j].rdev;  in raid10_sync_request()
3407 				struct md_rdev *rdev = conf->mirrors[d].rdev;  in raid10_sync_request()
3543 					if (conf->mirrors[d].rdev &&  in raid10_sync_request()
3545 						      &conf->mirrors[d].rdev->flags))  in raid10_sync_request()
3613 			rdev = conf->mirrors[d].rdev;  in raid10_sync_request()
3641 			rdev = conf->mirrors[d].replacement;  in raid10_sync_request()
3667 					rdev_dec_pending(conf->mirrors[d].rdev,  in raid10_sync_request()
3672 						conf->mirrors[d].replacement,  in raid10_sync_request()
3899 	kfree(conf->mirrors);  in raid10_free_conf()
3934 	conf->mirrors = kcalloc(mddev->raid_disks + max(0, -mddev->delta_disks),  in setup_conf()
3937 	if (!conf->mirrors)  in setup_conf()
4066 		disk = conf->mirrors + disk_idx;  in raid10_run()
4100 		pr_err("md/raid10:%s: not enough operational mirrors.\n",  in raid10_run()
4121 		disk = conf->mirrors + i;  in raid10_run()
4354 		/* allocate new 'mirrors' list */  in raid10_check_reshape()
4386 		struct md_rdev *rdev = conf->mirrors[i].rdev;  in calc_degraded()
4401 		struct md_rdev *rdev = conf->mirrors[i].rdev;  in calc_degraded()
4478 		memcpy(conf->mirrors_new, conf->mirrors,  in raid10_start_reshape()
4482 		conf->mirrors_old = conf->mirrors;  in raid10_start_reshape()
4483 		conf->mirrors = conf->mirrors_new;  in raid10_start_reshape()
4843 			rdev2 = conf->mirrors[d].replacement;  in reshape_request()
4846 			rdev2 = conf->mirrors[d].rdev;  in reshape_request()
4932 			rdev = conf->mirrors[d].replacement;  in reshape_request_write()
4935 			rdev = conf->mirrors[d].rdev;  in reshape_request_write()
5012 			struct md_rdev *rdev = conf->mirrors[d].rdev;  in handle_reshape_read_error()
5061 	rdev = repl ? conf->mirrors[d].replacement :  in end_reshape_write()
5062 		      conf->mirrors[d].rdev;  in end_reshape_write()
5100 			struct md_rdev *rdev = conf->mirrors[d].rdev;  in raid10_finish_reshape()
5103 			rdev = conf->mirrors[d].replacement;  in raid10_finish_reshape()