127 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
231 		for (i = sh->disks; i--; )  in do_release_stripe()
512 	sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in init_stripe()
517 	for (i = sh->disks; i--; ) {  in init_stripe()
573 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
575 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
599 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
601 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
710 	BUG_ON(sh->overwrite_disks > (sh->disks - sh->raid_conf->max_degraded));  in is_full_stripe_write()
711 	return sh->overwrite_disks == (sh->disks - sh->raid_conf->max_degraded);  in is_full_stripe_write()
987 	int i, disks = sh->disks;  in ops_run_io()  local
999 	for (i = disks; i--; ) {  in ops_run_io()
1028 		rrdev = rcu_dereference(conf->disks[i].replacement);  in ops_run_io()
1030 		rdev = rcu_dereference(conf->disks[i].rdev);  in ops_run_io()
1305 	for (i = sh->disks; i--; ) {  in ops_complete_biofill()
1343 	for (i = sh->disks; i--; ) {  in ops_run_biofill()
1403 	return addr + sizeof(struct page *) * (sh->disks + 2);  in to_addr_conv()
1418 	int disks = sh->disks;  in ops_run_compute5()  local
1434 	for (i = disks; i--; )  in ops_run_compute5()
1463 	int disks = sh->disks;  in set_syndrome_sources()  local
1464 	int syndrome_disks = sh->ddf_layout ? disks : (disks - 2);  in set_syndrome_sources()
1469 	for (i = 0; i < disks; i++)  in set_syndrome_sources()
1491 		i = raid6_next_disk(i, disks);  in set_syndrome_sources()
1500 	int disks = sh->disks;  in ops_run_compute6_1()  local
1540 		for (i = disks; i-- ; ) {  in ops_run_compute6_1()
1558 	int i, count, disks = sh->disks;  in ops_run_compute6_2()  local
1559 	int syndrome_disks = sh->ddf_layout ? disks : disks-2;  in ops_run_compute6_2()
1580 	for (i = 0; i < disks ; i++)  in ops_run_compute6_2()
1593 		i = raid6_next_disk(i, disks);  in ops_run_compute6_2()
1625 			for (i = disks; i-- ; ) {  in ops_run_compute6_2()
1682 	int disks = sh->disks;  in ops_run_prexor5()  local
1694 	for (i = disks; i--; ) {  in ops_run_prexor5()
1734 	int disks = sh->disks;  in ops_run_biodrain()  local
1741 	for (i = disks; i--; ) {  in ops_run_biodrain()
1804 	int disks = sh->disks;  in ops_complete_reconstruct()  local
1813 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
1819 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
1852 	int disks = sh->disks;  in ops_run_reconstruct5()  local
1866 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct5()
1872 	if (i >= sh->disks) {  in ops_run_reconstruct5()
1887 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
1895 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
1949 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct6()
1955 	if (i >= sh->disks) {  in ops_run_reconstruct6()
2009 	int disks = sh->disks;  in ops_run_check_p()  local
2026 	for (i = disks; i--; ) {  in ops_run_check_p()
2065 	int overlap_clear = 0, i, disks = sh->disks;  in raid_run_ops()  local
2127 		for (i = disks; i--; ) {  in raid_run_ops()
2143 	int disks, struct r5conf *conf)  in alloc_stripe()  argument
2159 		for (i = 0; i < disks; i++) {  in alloc_stripe()
2400 			ndisks[i] = conf->disks[i];  in resize_stripes()
2414 			kfree(conf->disks);  in resize_stripes()
2415 			conf->disks = ndisks;  in resize_stripes()
2479 	int disks = sh->disks, i;  in raid5_end_read_request()  local
2484 	for (i=0 ; i<disks; i++)  in raid5_end_read_request()
2491 	if (i == disks) {  in raid5_end_read_request()
2502 		rdev = conf->disks[i].replacement;  in raid5_end_read_request()
2504 		rdev = conf->disks[i].rdev;  in raid5_end_read_request()
2601 	int disks = sh->disks, i;  in raid5_end_write_request()  local
2607 	for (i = 0 ; i < disks; i++) {  in raid5_end_write_request()
2609 			rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2613 			rdev = conf->disks[i].replacement;  in raid5_end_write_request()
2621 				rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2628 	if (i == disks) {  in raid5_end_write_request()
2911 	int raid_disks = sh->disks;  in raid5_compute_blocknr()
3088 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3101 		for (i = disks; i--; ) {  in schedule_reconstruction()
3130 		if (s->locked + conf->max_degraded == disks)  in schedule_reconstruction()
3140 		for (i = disks; i--; ) {  in schedule_reconstruction()
3242 		for (i = 0; i < sh->disks; i++) {  in add_stripe_bio()
3332 	int disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in stripe_set_idx()  local
3335 			     stripe * (disks - conf->max_degraded)  in stripe_set_idx()
3343 		     struct stripe_head_state *s, int disks)  in handle_failed_stripe()  argument
3347 	for (i = disks; i--; ) {  in handle_failed_stripe()
3354 			rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_stripe()
3480 			struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_sync()
3487 			rdev = rcu_dereference(conf->disks[i].replacement);  in handle_failed_sync()
3509 	rdev = rcu_dereference(sh->raid_conf->disks[disk_idx].replacement);  in want_replace()
3521 			   int disk_idx, int disks)  in need_this_block()  argument
3617 		       int disk_idx, int disks)  in fetch_block()  argument
3622 	if (need_this_block(sh, s, disk_idx, disks)) {  in fetch_block()
3639 		if ((s->uptodate == disks - 1) &&  in fetch_block()
3662 		} else if (s->uptodate == disks-2 && s->failed >= 2) {  in fetch_block()
3667 			for (other = disks; other--; ) {  in fetch_block()
3704 			       int disks)  in handle_stripe_fill()  argument
3728 		for (i = disks; i--; )  in handle_stripe_fill()
3729 			if (fetch_block(sh, s, i, disks))  in handle_stripe_fill()
3744 	struct stripe_head *sh, int disks)  in handle_stripe_clean_event()  argument
3752 	for (i = disks; i--; )  in handle_stripe_clean_event()
3861 				  int disks)  in handle_stripe_dirtying()  argument
3883 	} else for (i = disks; i--; ) {  in handle_stripe_dirtying()
3895 				rmw += 2*disks;  /* cannot read it */  in handle_stripe_dirtying()
3906 				rcw += 2*disks;  in handle_stripe_dirtying()
3919 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
3949 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
3976 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4005 	if (rcw > disks && rmw > disks &&  in handle_stripe_dirtying()
4027 				struct stripe_head_state *s, int disks)  in handle_parity_checks5()  argument
4038 			BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4058 		BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4121 				  int disks)  in handle_parity_checks6()  argument
4188 		BUG_ON(s->uptodate < disks - 1); /* We don't need Q to recover */  in handle_parity_checks6()
4298 	for (i = 0; i < sh->disks; i++)  in handle_stripe_expansion()
4362 	int disks = sh->disks;  in analyse_stripe()  local
4377 	for (i=disks; i--; ) {  in analyse_stripe()
4421 		rdev = rcu_dereference(conf->disks[i].replacement);  in analyse_stripe()
4432 			rdev = rcu_dereference(conf->disks[i].rdev);  in analyse_stripe()
4480 				conf->disks[i].rdev);  in analyse_stripe()
4493 				conf->disks[i].rdev);  in analyse_stripe()
4502 				conf->disks[i].replacement);  in analyse_stripe()
4524 				    conf->disks[i].replacement);  in analyse_stripe()
4630 		for (i = 0; i < sh->disks; i++) {  in break_stripe_batch_list()
4644 	for (i = 0; i < head_sh->disks; i++)  in break_stripe_batch_list()
4660 	int disks = sh->disks;  in handle_stripe()  local
4747 			handle_failed_stripe(conf, sh, &s, disks);  in handle_stripe()
4770 		for (i = disks; i--; ) {  in handle_stripe()
4813 		handle_stripe_clean_event(conf, sh, disks);  in handle_stripe()
4816 		r5c_handle_cached_data_endio(conf, sh, disks);  in handle_stripe()
4825 	    || (s.syncing && (s.uptodate + s.compute < disks))  in handle_stripe()
4828 		handle_stripe_fill(sh, &s, disks);  in handle_stripe()
4849 				handle_stripe_dirtying(conf, sh, &s, disks);  in handle_stripe()
4856 							    disks);  in handle_stripe()
4869 							     disks);  in handle_stripe()
4886 			handle_parity_checks6(conf, sh, &s, disks);  in handle_stripe()
4888 			handle_parity_checks5(conf, sh, &s, disks);  in handle_stripe()
4970 		sh->disks = conf->raid_disks;  in handle_stripe()
5000 		for (i = disks; i--; ) {  in handle_stripe()
5005 				rdev = conf->disks[i].rdev;  in handle_stripe()
5012 				rdev = conf->disks[i].rdev;  in handle_stripe()
5018 				rdev = conf->disks[i].replacement;  in handle_stripe()
5021 					rdev = conf->disks[i].rdev;  in handle_stripe()
5223 	rdev = rcu_dereference(conf->disks[dd_idx].replacement);  in raid5_read_one_chunk()
5226 		rdev = rcu_dereference(conf->disks[dd_idx].rdev);  in raid5_read_one_chunk()
5908 		for (j=sh->disks; j--;) {  in reshape_request()
6084 		struct md_rdev *rdev = READ_ONCE(conf->disks[i].rdev);  in raid5_sync_request()
6783 		if (conf->disks[i].extra_page)  in free_conf()
6784 			put_page(conf->disks[i].extra_page);  in free_conf()
6785 	kfree(conf->disks);  in free_conf()
6952 	conf->disks = kcalloc(max_disks, sizeof(struct disk_info),  in setup_conf()
6955 	if (!conf->disks)  in setup_conf()
6959 		conf->disks[i].extra_page = alloc_page(GFP_KERNEL);  in setup_conf()
6960 		if (!conf->disks[i].extra_page)  in setup_conf()
7006 		disk = conf->disks + raid_disk;  in setup_conf()
7294 		rdev = conf->disks[i].rdev;  in raid5_run()
7295 		if (!rdev && conf->disks[i].replacement) {  in raid5_run()
7297 			rdev = conf->disks[i].replacement;  in raid5_run()
7298 			conf->disks[i].replacement = NULL;  in raid5_run()
7300 			conf->disks[i].rdev = rdev;  in raid5_run()
7304 		if (conf->disks[i].replacement &&  in raid5_run()
7497 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_status()
7520 		tmp = conf->disks + i;  in print_raid5_conf()
7537 		tmp = conf->disks + i;  in raid5_spare_active()
7577 	struct disk_info *p = conf->disks + number;  in raid5_remove_disk()
7693 	    conf->disks[rdev->saved_raid_disk].rdev == NULL)  in raid5_add_disk()
7697 		p = conf->disks + disk;  in raid5_add_disk()
7711 		p = conf->disks + disk;  in raid5_add_disk()
8022 				struct md_rdev *rdev = conf->disks[d].rdev;  in raid5_finish_reshape()
8025 				rdev = conf->disks[d].replacement;  in raid5_finish_reshape()