118 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
222 		for (i = sh->disks; i--; )  in do_release_stripe()
503 	sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in init_stripe()
508 	for (i = sh->disks; i--; ) {  in init_stripe()
564 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
566 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
590 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
592 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
701 	BUG_ON(sh->overwrite_disks > (sh->disks - sh->raid_conf->max_degraded));  in is_full_stripe_write()
702 	return sh->overwrite_disks == (sh->disks - sh->raid_conf->max_degraded);  in is_full_stripe_write()
982 	int i, disks = sh->disks;  in ops_run_io()  local
994 	for (i = disks; i--; ) {  in ops_run_io()
1023 		rrdev = rcu_dereference(conf->disks[i].replacement);  in ops_run_io()
1025 		rdev = rcu_dereference(conf->disks[i].rdev);  in ops_run_io()
1300 	for (i = sh->disks; i--; ) {  in ops_complete_biofill()
1338 	for (i = sh->disks; i--; ) {  in ops_run_biofill()
1401 	return (void *) (to_addr_page(percpu, i) + sh->disks + 2);  in to_addr_conv()
1407 	int disks = sh->disks;  in ops_run_compute5()  local
1423 	for (i = disks; i--; )  in ops_run_compute5()
1452 	int disks = sh->disks;  in set_syndrome_sources()  local
1453 	int syndrome_disks = sh->ddf_layout ? disks : (disks - 2);  in set_syndrome_sources()
1458 	for (i = 0; i < disks; i++)  in set_syndrome_sources()
1480 		i = raid6_next_disk(i, disks);  in set_syndrome_sources()
1489 	int disks = sh->disks;  in ops_run_compute6_1()  local
1529 		for (i = disks; i-- ; ) {  in ops_run_compute6_1()
1547 	int i, count, disks = sh->disks;  in ops_run_compute6_2()  local
1548 	int syndrome_disks = sh->ddf_layout ? disks : disks-2;  in ops_run_compute6_2()
1569 	for (i = 0; i < disks ; i++)  in ops_run_compute6_2()
1582 		i = raid6_next_disk(i, disks);  in ops_run_compute6_2()
1614 			for (i = disks; i-- ; ) {  in ops_run_compute6_2()
1671 	int disks = sh->disks;  in ops_run_prexor5()  local
1683 	for (i = disks; i--; ) {  in ops_run_prexor5()
1723 	int disks = sh->disks;  in ops_run_biodrain()  local
1730 	for (i = disks; i--; ) {  in ops_run_biodrain()
1793 	int disks = sh->disks;  in ops_complete_reconstruct()  local
1802 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
1808 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
1841 	int disks = sh->disks;  in ops_run_reconstruct5()  local
1855 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct5()
1861 	if (i >= sh->disks) {  in ops_run_reconstruct5()
1876 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
1884 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
1938 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct6()
1944 	if (i >= sh->disks) {  in ops_run_reconstruct6()
1998 	int disks = sh->disks;  in ops_run_check_p()  local
2015 	for (i = disks; i--; ) {  in ops_run_check_p()
2054 	int overlap_clear = 0, i, disks = sh->disks;  in raid_run_ops()  local
2116 		for (i = disks; i--; ) {  in raid_run_ops()
2132 	int disks, struct r5conf *conf)  in alloc_stripe()  argument
2148 		for (i = 0; i < disks; i++) {  in alloc_stripe()
2386 			ndisks[i] = conf->disks[i];  in resize_stripes()
2400 			kfree(conf->disks);  in resize_stripes()
2401 			conf->disks = ndisks;  in resize_stripes()
2465 	int disks = sh->disks, i;  in raid5_end_read_request()  local
2470 	for (i=0 ; i<disks; i++)  in raid5_end_read_request()
2477 	if (i == disks) {  in raid5_end_read_request()
2488 		rdev = conf->disks[i].replacement;  in raid5_end_read_request()
2490 		rdev = conf->disks[i].rdev;  in raid5_end_read_request()
2596 	int disks = sh->disks, i;  in raid5_end_write_request()  local
2602 	for (i = 0 ; i < disks; i++) {  in raid5_end_write_request()
2604 			rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2608 			rdev = conf->disks[i].replacement;  in raid5_end_write_request()
2616 				rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2623 	if (i == disks) {  in raid5_end_write_request()
2918 	int raid_disks = sh->disks;  in raid5_compute_blocknr()
3095 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3108 		for (i = disks; i--; ) {  in schedule_reconstruction()
3137 		if (s->locked + conf->max_degraded == disks)  in schedule_reconstruction()
3147 		for (i = disks; i--; ) {  in schedule_reconstruction()
3249 		for (i = 0; i < sh->disks; i++) {  in add_stripe_bio()
3339 	int disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in stripe_set_idx()  local
3342 			     stripe * (disks - conf->max_degraded)  in stripe_set_idx()
3350 		     struct stripe_head_state *s, int disks)  in handle_failed_stripe()  argument
3354 	for (i = disks; i--; ) {  in handle_failed_stripe()
3361 			rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_stripe()
3487 			struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_sync()
3494 			rdev = rcu_dereference(conf->disks[i].replacement);  in handle_failed_sync()
3516 	rdev = rcu_dereference(sh->raid_conf->disks[disk_idx].replacement);  in want_replace()
3528 			   int disk_idx, int disks)  in need_this_block()  argument
3624 		       int disk_idx, int disks)  in fetch_block()  argument
3629 	if (need_this_block(sh, s, disk_idx, disks)) {  in fetch_block()
3646 		if ((s->uptodate == disks - 1) &&  in fetch_block()
3669 		} else if (s->uptodate == disks-2 && s->failed >= 2) {  in fetch_block()
3674 			for (other = disks; other--; ) {  in fetch_block()
3711 			       int disks)  in handle_stripe_fill()  argument
3735 		for (i = disks; i--; )  in handle_stripe_fill()
3736 			if (fetch_block(sh, s, i, disks))  in handle_stripe_fill()
3751 	struct stripe_head *sh, int disks)  in handle_stripe_clean_event()  argument
3759 	for (i = disks; i--; )  in handle_stripe_clean_event()
3868 				  int disks)  in handle_stripe_dirtying()  argument
3890 	} else for (i = disks; i--; ) {  in handle_stripe_dirtying()
3902 				rmw += 2*disks;  /* cannot read it */  in handle_stripe_dirtying()
3913 				rcw += 2*disks;  in handle_stripe_dirtying()
3926 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
3956 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
3983 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4012 	if (rcw > disks && rmw > disks &&  in handle_stripe_dirtying()
4034 				struct stripe_head_state *s, int disks)  in handle_parity_checks5()  argument
4045 			BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4065 		BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4128 				  int disks)  in handle_parity_checks6()  argument
4313 	for (i = 0; i < sh->disks; i++)  in handle_stripe_expansion()
4377 	int disks = sh->disks;  in analyse_stripe()  local
4392 	for (i=disks; i--; ) {  in analyse_stripe()
4436 		rdev = rcu_dereference(conf->disks[i].replacement);  in analyse_stripe()
4447 			rdev = rcu_dereference(conf->disks[i].rdev);  in analyse_stripe()
4495 				conf->disks[i].rdev);  in analyse_stripe()
4508 				conf->disks[i].rdev);  in analyse_stripe()
4517 				conf->disks[i].replacement);  in analyse_stripe()
4539 				    conf->disks[i].replacement);  in analyse_stripe()
4644 		for (i = 0; i < sh->disks; i++) {  in break_stripe_batch_list()
4658 	for (i = 0; i < head_sh->disks; i++)  in break_stripe_batch_list()
4674 	int disks = sh->disks;  in handle_stripe()  local
4761 			handle_failed_stripe(conf, sh, &s, disks);  in handle_stripe()
4784 		for (i = disks; i--; ) {  in handle_stripe()
4827 		handle_stripe_clean_event(conf, sh, disks);  in handle_stripe()
4830 		r5c_handle_cached_data_endio(conf, sh, disks);  in handle_stripe()
4839 	    || (s.syncing && (s.uptodate + s.compute < disks))  in handle_stripe()
4842 		handle_stripe_fill(sh, &s, disks);  in handle_stripe()
4863 				handle_stripe_dirtying(conf, sh, &s, disks);  in handle_stripe()
4870 							    disks);  in handle_stripe()
4883 							     disks);  in handle_stripe()
4900 			handle_parity_checks6(conf, sh, &s, disks);  in handle_stripe()
4902 			handle_parity_checks5(conf, sh, &s, disks);  in handle_stripe()
4984 		sh->disks = conf->raid_disks;  in handle_stripe()
5014 		for (i = disks; i--; ) {  in handle_stripe()
5019 				rdev = conf->disks[i].rdev;  in handle_stripe()
5026 				rdev = conf->disks[i].rdev;  in handle_stripe()
5032 				rdev = conf->disks[i].replacement;  in handle_stripe()
5035 					rdev = conf->disks[i].rdev;  in handle_stripe()
5237 	rdev = rcu_dereference(conf->disks[dd_idx].replacement);  in raid5_read_one_chunk()
5240 		rdev = rcu_dereference(conf->disks[dd_idx].rdev);  in raid5_read_one_chunk()
5922 		for (j=sh->disks; j--;) {  in reshape_request()
6098 		struct md_rdev *rdev = READ_ONCE(conf->disks[i].rdev);  in raid5_sync_request()
6805 		if (conf->disks[i].extra_page)  in free_conf()
6806 			put_page(conf->disks[i].extra_page);  in free_conf()
6807 	kfree(conf->disks);  in free_conf()
6974 	conf->disks = kcalloc(max_disks, sizeof(struct disk_info),  in setup_conf()
6977 	if (!conf->disks)  in setup_conf()
6981 		conf->disks[i].extra_page = alloc_page(GFP_KERNEL);  in setup_conf()
6982 		if (!conf->disks[i].extra_page)  in setup_conf()
7028 		disk = conf->disks + raid_disk;  in setup_conf()
7316 		rdev = conf->disks[i].rdev;  in raid5_run()
7317 		if (!rdev && conf->disks[i].replacement) {  in raid5_run()
7319 			rdev = conf->disks[i].replacement;  in raid5_run()
7320 			conf->disks[i].replacement = NULL;  in raid5_run()
7322 			conf->disks[i].rdev = rdev;  in raid5_run()
7326 		if (conf->disks[i].replacement &&  in raid5_run()
7521 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_status()
7544 		tmp = conf->disks + i;  in print_raid5_conf()
7561 		tmp = conf->disks + i;  in raid5_spare_active()
7601 	struct disk_info *p = conf->disks + number;  in raid5_remove_disk()
7724 	    conf->disks[rdev->saved_raid_disk].rdev == NULL)  in raid5_add_disk()
7728 		p = conf->disks + disk;  in raid5_add_disk()
7742 		p = conf->disks + disk;  in raid5_add_disk()
8053 				struct md_rdev *rdev = conf->disks[d].rdev;  in raid5_finish_reshape()
8056 				rdev = conf->disks[d].replacement;  in raid5_finish_reshape()