471 		rdev = conf->mirrors[dev].replacement;  in raid10_end_write_request()
482 			/* Never record new bad blocks to replacement,  in raid10_end_write_request()
780 		rdev = rcu_dereference(conf->mirrors[disk].replacement);  in read_balance()
1271 				  struct bio *bio, bool replacement,  in raid10_write_one_disk()  argument
1285 	if (replacement) {  in raid10_write_one_disk()
1286 		rdev = conf->mirrors[devnum].replacement;  in raid10_write_one_disk()
1288 			/* Replacement just got moved to main 'rdev' */  in raid10_write_one_disk()
1296 	if (replacement)  in raid10_write_one_disk()
1305 	if (!replacement && test_bit(FailFast,  in raid10_write_one_disk()
1346 			conf->mirrors[i].replacement);  in wait_blocked_dev()
1477 			conf->mirrors[d].replacement);  in raid10_write_request()
1624 		rdev = conf->mirrors[dev].replacement;  in raid10_end_discard_request()
1628 		 * replacement before setting replacement to NULL. It can read  in raid10_end_discard_request()
1787 			conf->mirrors[disk].replacement);  in raid10_handle_discard()
1862 			struct md_rdev *rrdev = conf->mirrors[disk].replacement;  in raid10_handle_discard()
2105 		if (tmp->replacement  in raid10_spare_active()
2106 		    && tmp->replacement->recovery_offset == MaxSector  in raid10_spare_active()
2107 		    && !test_bit(Faulty, &tmp->replacement->flags)  in raid10_spare_active()
2108 		    && !test_and_set_bit(In_sync, &tmp->replacement->flags)) {  in raid10_spare_active()
2109 			/* Replacement has just become active */  in raid10_spare_active()
2122 			sysfs_notify_dirent_safe(tmp->replacement->sysfs_state);  in raid10_spare_active()
2173 			    p->replacement != NULL)  in raid10_add_disk()
2176 			set_bit(Replacement, &rdev->flags);  in raid10_add_disk()
2183 			rcu_assign_pointer(p->replacement, rdev);  in raid10_add_disk()
2219 	else if (rdev == p->replacement)  in raid10_remove_disk()
2220 		rdevp = &p->replacement;  in raid10_remove_disk()
2234 	    (!p->replacement || p->replacement == rdev) &&  in raid10_remove_disk()
2250 	if (p->replacement) {  in raid10_remove_disk()
2252 		p->rdev = p->replacement;  in raid10_remove_disk()
2253 		clear_bit(Replacement, &p->replacement->flags);  in raid10_remove_disk()
2257 		p->replacement = NULL;  in raid10_remove_disk()
2353 		rdev = conf->mirrors[d].replacement;  in end_sync_write()
2489 	/* Now write out to any replacement devices  in sync_request_write()
2503 		md_sync_acct(conf->mirrors[d].replacement->bdev,  in sync_request_write()
2639 		atomic_inc(&conf->mirrors[d].replacement->nr_pending);  in recovery_request_write()
2640 		md_sync_acct(conf->mirrors[d].replacement->bdev,  in recovery_request_write()
3017 			rdev = conf->mirrors[dev].replacement;  in handle_write_completed()
3058 			rdev = conf->mirrors[dev].replacement;  in handle_write_completed()
3169 		if (conf->mirrors[i].replacement)  in init_resync()
3356 						rcu_dereference(conf->mirrors[i].replacement);  in raid10_sync_request()
3432 			mreplace = rcu_dereference(mirror->replacement);  in raid10_sync_request()
3460 			/* Unless we are doing a full sync, or a replacement  in raid10_sync_request()
3578 				/* and maybe write to replacement */  in raid10_sync_request()
3752 			rdev = rcu_dereference(conf->mirrors[d].replacement);  in raid10_sync_request()
3759 			/* Need to set up for writing to the replacement */  in raid10_sync_request()
3785 						conf->mirrors[d].replacement,  in raid10_sync_request()
4166 		if (test_bit(Replacement, &rdev->flags)) {  in raid10_run()
4167 			if (disk->replacement)  in raid10_run()
4169 			disk->replacement = rdev;  in raid10_run()
4216 		if (!disk->rdev && disk->replacement) {  in raid10_run()
4217 			/* The replacement is all we have - use it */  in raid10_run()
4218 			disk->rdev = disk->replacement;  in raid10_run()
4219 			disk->replacement = NULL;  in raid10_run()
4220 			clear_bit(Replacement, &disk->rdev->flags);  in raid10_run()
4232 		if (disk->replacement &&  in raid10_run()
4233 		    !test_bit(In_sync, &disk->replacement->flags) &&  in raid10_run()
4234 		    disk->replacement->saved_raid_disk < 0) {  in raid10_run()
4962 			rdev2 = rcu_dereference(conf->mirrors[d].replacement);  in reshape_request()
5054 			rdev = rcu_dereference(conf->mirrors[d].replacement);  in reshape_request_write()
5192 		rdev = conf->mirrors[d].replacement;  in end_reshape_write()
5238 			rdev = rcu_dereference(conf->mirrors[d].replacement);  in raid10_finish_reshape()