304 	int mirror;  in find_bio_disk()  local
308 	for (mirror = 0; mirror < raid_disks * 2; mirror++)  in find_bio_disk()
309 		if (r1_bio->bios[mirror] == bio)  in find_bio_disk()
312 	BUG_ON(mirror == raid_disks * 2);  in find_bio_disk()
313 	update_head_pos(mirror, r1_bio);  in find_bio_disk()
315 	return mirror;  in find_bio_disk()
322 	int mirror;  in raid1_end_read_request()  local
325 	mirror = r1_bio->read_disk;  in raid1_end_read_request()
329 	update_head_pos(mirror, r1_bio);  in raid1_end_read_request()
342 		     test_bit(In_sync, &conf->mirrors[mirror].rdev->flags)))  in raid1_end_read_request()
349 		rdev_dec_pending(conf->mirrors[mirror].rdev, conf->mddev);  in raid1_end_read_request()
359 			bdevname(conf->mirrors[mirror].rdev->bdev,  in raid1_end_read_request()
406 	int mirror, behind = test_bit(R1BIO_BehindIO, &r1_bio->state);  in raid1_end_write_request()  local
410 	mirror = find_bio_disk(r1_bio, bio);  in raid1_end_write_request()
417 			&conf->mirrors[mirror].rdev->flags);  in raid1_end_write_request()
419 				      &conf->mirrors[mirror].rdev->flags))  in raid1_end_write_request()
438 		r1_bio->bios[mirror] = NULL;  in raid1_end_write_request()
448 		if (test_bit(In_sync, &conf->mirrors[mirror].rdev->flags) &&  in raid1_end_write_request()
449 		    !test_bit(Faulty, &conf->mirrors[mirror].rdev->flags))  in raid1_end_write_request()
453 		if (is_badblock(conf->mirrors[mirror].rdev,  in raid1_end_write_request()
456 			r1_bio->bios[mirror] = IO_MADE_GOOD;  in raid1_end_write_request()
462 		if (test_bit(WriteMostly, &conf->mirrors[mirror].rdev->flags))  in raid1_end_write_request()
485 	if (r1_bio->bios[mirror] == NULL)  in raid1_end_write_request()
486 		rdev_dec_pending(conf->mirrors[mirror].rdev,  in raid1_end_write_request()
628 			struct raid1_info *mirror = &conf->mirrors[disk];  in read_balance()  local
645 			    mirror->seq_start != MaxSector &&  in read_balance()
646 			    mirror->next_seq_sect > opt_iosize &&  in read_balance()
647 			    mirror->next_seq_sect - opt_iosize >=  in read_balance()
648 			    mirror->seq_start) {  in read_balance()
1050 	struct raid1_info *mirror;  in make_request()  local
1145 		mirror = conf->mirrors + rdisk;  in make_request()
1147 		if (test_bit(WriteMostly, &mirror->rdev->flags) &&  in make_request()
1166 			mirror->rdev->data_offset;  in make_request()
1167 		read_bio->bi_bdev = mirror->rdev->bdev;  in make_request()
1584 	int mirror = 0;  in raid1_add_disk()  local
1607 	for (mirror = first; mirror <= last; mirror++) {  in raid1_add_disk()
1608 		p = conf->mirrors+mirror;  in raid1_add_disk()
1616 			rdev->raid_disk = mirror;  in raid1_add_disk()
1631 			rdev->raid_disk = mirror;  in raid1_add_disk()
1724 	int mirror=0;  in end_sync_write()  local
1728 	mirror = find_bio_disk(r1_bio, bio);  in end_sync_write()
1742 			&conf->mirrors[mirror].rdev->flags);  in end_sync_write()
1744 				      &conf->mirrors[mirror].rdev->flags))  in end_sync_write()
1748 	} else if (is_badblock(conf->mirrors[mirror].rdev,  in end_sync_write()