125 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
231 		for (i = sh->disks; i--; )  in do_release_stripe()
500 init_stripe_shared_pages(struct stripe_head *sh, struct r5conf *conf, int disks)  in init_stripe_shared_pages()  argument
509 	nr_pages = (disks + cnt - 1) / cnt;  in init_stripe_shared_pages()
590 	sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in init_stripe()
595 	for (i = sh->disks; i--; ) {  in init_stripe()
698 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
700 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
724 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
726 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
876 	BUG_ON(sh->overwrite_disks > (sh->disks - sh->raid_conf->max_degraded));  in is_full_stripe_write()
877 	return sh->overwrite_disks == (sh->disks - sh->raid_conf->max_degraded);  in is_full_stripe_write()
1142 	int i, disks = sh->disks;  in ops_run_io()  local
1155 	for (i = disks; i--; ) {  in ops_run_io()
1186 		rrdev = rcu_dereference(conf->disks[i].replacement);  in ops_run_io()
1188 		rdev = rcu_dereference(conf->disks[i].rdev);  in ops_run_io()
1458 	for (i = sh->disks; i--; ) {  in ops_complete_biofill()
1497 	for (i = sh->disks; i--; ) {  in ops_run_biofill()
1561 	return (void *) (to_addr_page(percpu, i) + sh->disks + 2);  in to_addr_conv()
1570 	return (unsigned int *) (to_addr_conv(sh, percpu, 0) + sh->disks + 2);  in to_addr_offs()
1576 	int disks = sh->disks;  in ops_run_compute5()  local
1594 	for (i = disks; i--; ) {  in ops_run_compute5()
1630 	int disks = sh->disks;  in set_syndrome_sources()  local
1631 	int syndrome_disks = sh->ddf_layout ? disks : (disks - 2);  in set_syndrome_sources()
1636 	for (i = 0; i < disks; i++)  in set_syndrome_sources()
1664 		i = raid6_next_disk(i, disks);  in set_syndrome_sources()
1673 	int disks = sh->disks;  in ops_run_compute6_1()  local
1717 		for (i = disks; i-- ; ) {  in ops_run_compute6_1()
1737 	int i, count, disks = sh->disks;  in ops_run_compute6_2()  local
1738 	int syndrome_disks = sh->ddf_layout ? disks : disks-2;  in ops_run_compute6_2()
1760 	for (i = 0; i < disks ; i++) {  in ops_run_compute6_2()
1776 		i = raid6_next_disk(i, disks);  in ops_run_compute6_2()
1810 			for (i = disks; i-- ; ) {  in ops_run_compute6_2()
1873 	int disks = sh->disks;  in ops_run_prexor5()  local
1887 	for (i = disks; i--; ) {  in ops_run_prexor5()
1937 	int disks = sh->disks;  in ops_run_biodrain()  local
1944 	for (i = disks; i--; ) {  in ops_run_biodrain()
2008 	int disks = sh->disks;  in ops_complete_reconstruct()  local
2017 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
2023 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
2056 	int disks = sh->disks;  in ops_run_reconstruct5()  local
2072 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct5()
2078 	if (i >= sh->disks) {  in ops_run_reconstruct5()
2095 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2106 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2165 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct6()
2171 	if (i >= sh->disks) {  in ops_run_reconstruct6()
2227 	int disks = sh->disks;  in ops_run_check_p()  local
2248 	for (i = disks; i--; ) {  in ops_run_check_p()
2291 	int overlap_clear = 0, i, disks = sh->disks;  in raid_run_ops()  local
2352 		for (i = disks; i--; ) {  in raid_run_ops()
2372 	int disks, struct r5conf *conf)  in alloc_stripe()  argument
2396 		if (init_stripe_shared_pages(sh, conf, disks)) {  in alloc_stripe()
2640 			ndisks[i] = conf->disks[i];  in resize_stripes()
2654 			kfree(conf->disks);  in resize_stripes()
2655 			conf->disks = ndisks;  in resize_stripes()
2760 	int disks = sh->disks, i;  in raid5_end_read_request()  local
2764 	for (i=0 ; i<disks; i++)  in raid5_end_read_request()
2771 	if (i == disks) {  in raid5_end_read_request()
2781 		rdev = rdev_pend_deref(conf->disks[i].replacement);  in raid5_end_read_request()
2783 		rdev = rdev_pend_deref(conf->disks[i].rdev);  in raid5_end_read_request()
2888 	int disks = sh->disks, i;  in raid5_end_write_request()  local
2894 	for (i = 0 ; i < disks; i++) {  in raid5_end_write_request()
2896 			rdev = rdev_pend_deref(conf->disks[i].rdev);  in raid5_end_write_request()
2900 			rdev = rdev_pend_deref(conf->disks[i].replacement);  in raid5_end_write_request()
2908 				rdev = rdev_pend_deref(conf->disks[i].rdev);  in raid5_end_write_request()
2915 	if (i == disks) {  in raid5_end_write_request()
3205 	int raid_disks = sh->disks;  in raid5_compute_blocknr()
3382 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3395 		for (i = disks; i--; ) {  in schedule_reconstruction()
3424 		if (s->locked + conf->max_degraded == disks)  in schedule_reconstruction()
3434 		for (i = disks; i--; ) {  in schedule_reconstruction()
3528 		for (i = 0; i < sh->disks; i++) {  in stripe_bio_overlaps()
3650 	int disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in stripe_set_idx()  local
3653 			     stripe * (disks - conf->max_degraded)  in stripe_set_idx()
3661 		     struct stripe_head_state *s, int disks)  in handle_failed_stripe()  argument
3665 	for (i = disks; i--; ) {  in handle_failed_stripe()
3672 			rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_stripe()
3798 			struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_sync()
3805 			rdev = rcu_dereference(conf->disks[i].replacement);  in handle_failed_sync()
3827 	rdev = rcu_dereference(sh->raid_conf->disks[disk_idx].replacement);  in want_replace()
3839 			   int disk_idx, int disks)  in need_this_block()  argument
3946 		       int disk_idx, int disks)  in fetch_block()  argument
3951 	if (need_this_block(sh, s, disk_idx, disks)) {  in fetch_block()
3968 		if ((s->uptodate == disks - 1) &&  in fetch_block()
3991 		} else if (s->uptodate == disks-2 && s->failed >= 2) {  in fetch_block()
3996 			for (other = disks; other--; ) {  in fetch_block()
4033 			       int disks)  in handle_stripe_fill()  argument
4057 		for (i = disks; i--; )  in handle_stripe_fill()
4058 			if (fetch_block(sh, s, i, disks))  in handle_stripe_fill()
4073 	struct stripe_head *sh, int disks)  in handle_stripe_clean_event()  argument
4081 	for (i = disks; i--; )  in handle_stripe_clean_event()
4190 				  int disks)  in handle_stripe_dirtying()  argument
4212 	} else for (i = disks; i--; ) {  in handle_stripe_dirtying()
4224 				rmw += 2*disks;  /* cannot read it */  in handle_stripe_dirtying()
4235 				rcw += 2*disks;  in handle_stripe_dirtying()
4248 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4278 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4303 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4330 	if (rcw > disks && rmw > disks &&  in handle_stripe_dirtying()
4352 				struct stripe_head_state *s, int disks)  in handle_parity_checks5()  argument
4363 			BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4383 		BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4446 				  int disks)  in handle_parity_checks6()  argument
4631 	for (i = 0; i < sh->disks; i++)  in handle_stripe_expansion()
4697 	int disks = sh->disks;  in analyse_stripe()  local
4712 	for (i=disks; i--; ) {  in analyse_stripe()
4756 		rdev = rcu_dereference(conf->disks[i].replacement);  in analyse_stripe()
4767 			rdev = rcu_dereference(conf->disks[i].rdev);  in analyse_stripe()
4815 				conf->disks[i].rdev);  in analyse_stripe()
4828 				conf->disks[i].rdev);  in analyse_stripe()
4837 				conf->disks[i].replacement);  in analyse_stripe()
4859 				    conf->disks[i].replacement);  in analyse_stripe()
4964 		for (i = 0; i < sh->disks; i++) {  in break_stripe_batch_list()
4978 	for (i = 0; i < head_sh->disks; i++)  in break_stripe_batch_list()
4994 	int disks = sh->disks;  in handle_stripe()  local
5086 			handle_failed_stripe(conf, sh, &s, disks);  in handle_stripe()
5109 		for (i = disks; i--; ) {  in handle_stripe()
5152 		handle_stripe_clean_event(conf, sh, disks);  in handle_stripe()
5155 		r5c_handle_cached_data_endio(conf, sh, disks);  in handle_stripe()
5164 	    || (s.syncing && (s.uptodate + s.compute < disks))  in handle_stripe()
5167 		handle_stripe_fill(sh, &s, disks);  in handle_stripe()
5188 				handle_stripe_dirtying(conf, sh, &s, disks);  in handle_stripe()
5195 							    disks);  in handle_stripe()
5208 							     disks);  in handle_stripe()
5225 			handle_parity_checks6(conf, sh, &s, disks);  in handle_stripe()
5227 			handle_parity_checks5(conf, sh, &s, disks);  in handle_stripe()
5308 		sh->disks = conf->raid_disks;  in handle_stripe()
5338 		for (i = disks; i--; ) {  in handle_stripe()
5343 				rdev = rdev_pend_deref(conf->disks[i].rdev);  in handle_stripe()
5350 				rdev = rdev_pend_deref(conf->disks[i].rdev);  in handle_stripe()
5356 				rdev = rdev_pend_deref(conf->disks[i].replacement);  in handle_stripe()
5359 					rdev = rdev_pend_deref(conf->disks[i].rdev);  in handle_stripe()
5522 	rdev = rcu_dereference(conf->disks[dd_idx].replacement);  in raid5_read_one_chunk()
5525 		rdev = rcu_dereference(conf->disks[dd_idx].rdev);  in raid5_read_one_chunk()
5894 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in stripe_ahead_of_reshape()
5923 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in add_all_stripe_bios()
5943 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in add_all_stripe_bios()
6431 		for (j=sh->disks; j--;) {  in reshape_request()
6610 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_sync_request()
7416 		if (conf->disks[i].extra_page)  in free_conf()
7417 			put_page(conf->disks[i].extra_page);  in free_conf()
7418 	kfree(conf->disks);  in free_conf()
7591 	conf->disks = kcalloc(max_disks, sizeof(struct disk_info),  in setup_conf()
7594 	if (!conf->disks)  in setup_conf()
7598 		conf->disks[i].extra_page = alloc_page(GFP_KERNEL);  in setup_conf()
7599 		if (!conf->disks[i].extra_page)  in setup_conf()
7649 		disk = conf->disks + raid_disk;  in setup_conf()
7943 		rdev = rdev_mdlock_deref(mddev, conf->disks[i].rdev);  in raid5_run()
7944 		if (!rdev && conf->disks[i].replacement) {  in raid5_run()
7947 						 conf->disks[i].replacement);  in raid5_run()
7948 			conf->disks[i].replacement = NULL;  in raid5_run()
7950 			rcu_assign_pointer(conf->disks[i].rdev, rdev);  in raid5_run()
7954 		if (rcu_access_pointer(conf->disks[i].replacement) &&  in raid5_run()
8143 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_status()
8166 		rdev = rcu_dereference(conf->disks[i].rdev);  in print_raid5_conf()
8184 		rdev = rdev_mdlock_deref(mddev, conf->disks[i].rdev);  in raid5_spare_active()
8186 						conf->disks[i].replacement);  in raid5_spare_active()
8247 	p = conf->disks + number;  in raid5_remove_disk()
8358 	    conf->disks[rdev->saved_raid_disk].rdev == NULL)  in raid5_add_disk()
8362 		p = conf->disks + disk;  in raid5_add_disk()
8376 		p = conf->disks + disk;  in raid5_add_disk()
8519 		if (rdev_mdlock_deref(mddev, conf->disks[i].replacement))  in raid5_start_reshape()
8691 							 conf->disks[d].rdev);  in raid5_finish_reshape()
8695 						conf->disks[d].replacement);  in raid5_finish_reshape()