130 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
236 		for (i = sh->disks; i--; )  in do_release_stripe()
505 init_stripe_shared_pages(struct stripe_head *sh, struct r5conf *conf, int disks)  in init_stripe_shared_pages()  argument
514 	nr_pages = (disks + cnt - 1) / cnt;  in init_stripe_shared_pages()
595 	sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in init_stripe()
600 	for (i = sh->disks; i--; ) {  in init_stripe()
702 		struct md_rdev *rdev = READ_ONCE(conf->disks[i].rdev);  in raid5_calc_degraded()
705 			rdev = READ_ONCE(conf->disks[i].replacement);  in raid5_calc_degraded()
727 		struct md_rdev *rdev = READ_ONCE(conf->disks[i].rdev);  in raid5_calc_degraded()
730 			rdev = READ_ONCE(conf->disks[i].replacement);  in raid5_calc_degraded()
880 	BUG_ON(sh->overwrite_disks > (sh->disks - sh->raid_conf->max_degraded));  in is_full_stripe_write()
881 	return sh->overwrite_disks == (sh->disks - sh->raid_conf->max_degraded);  in is_full_stripe_write()
1145 	int i, disks = sh->disks;  in ops_run_io()  local
1158 	for (i = disks; i--; ) {  in ops_run_io()
1188 		rdev = conf->disks[i].rdev;  in ops_run_io()
1189 		rrdev = conf->disks[i].replacement;  in ops_run_io()
1436 	for (i = sh->disks; i--; ) {  in ops_complete_biofill()
1475 	for (i = sh->disks; i--; ) {  in ops_run_biofill()
1539 	return (void *) (to_addr_page(percpu, i) + sh->disks + 2);  in to_addr_conv()
1548 	return (unsigned int *) (to_addr_conv(sh, percpu, 0) + sh->disks + 2);  in to_addr_offs()
1554 	int disks = sh->disks;  in ops_run_compute5()  local
1572 	for (i = disks; i--; ) {  in ops_run_compute5()
1608 	int disks = sh->disks;  in set_syndrome_sources()  local
1609 	int syndrome_disks = sh->ddf_layout ? disks : (disks - 2);  in set_syndrome_sources()
1614 	for (i = 0; i < disks; i++)  in set_syndrome_sources()
1642 		i = raid6_next_disk(i, disks);  in set_syndrome_sources()
1651 	int disks = sh->disks;  in ops_run_compute6_1()  local
1695 		for (i = disks; i-- ; ) {  in ops_run_compute6_1()
1715 	int i, count, disks = sh->disks;  in ops_run_compute6_2()  local
1716 	int syndrome_disks = sh->ddf_layout ? disks : disks-2;  in ops_run_compute6_2()
1738 	for (i = 0; i < disks ; i++) {  in ops_run_compute6_2()
1754 		i = raid6_next_disk(i, disks);  in ops_run_compute6_2()
1788 			for (i = disks; i-- ; ) {  in ops_run_compute6_2()
1851 	int disks = sh->disks;  in ops_run_prexor5()  local
1865 	for (i = disks; i--; ) {  in ops_run_prexor5()
1915 	int disks = sh->disks;  in ops_run_biodrain()  local
1922 	for (i = disks; i--; ) {  in ops_run_biodrain()
1986 	int disks = sh->disks;  in ops_complete_reconstruct()  local
1995 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
2001 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
2034 	int disks = sh->disks;  in ops_run_reconstruct5()  local
2050 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct5()
2056 	if (i >= sh->disks) {  in ops_run_reconstruct5()
2073 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2084 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2143 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct6()
2149 	if (i >= sh->disks) {  in ops_run_reconstruct6()
2205 	int disks = sh->disks;  in ops_run_check_p()  local
2226 	for (i = disks; i--; ) {  in ops_run_check_p()
2269 	int overlap_clear = 0, i, disks = sh->disks;  in raid_run_ops()  local
2330 		for (i = disks; i--; ) {  in raid_run_ops()
2350 	int disks, struct r5conf *conf)  in alloc_stripe()  argument
2374 		if (init_stripe_shared_pages(sh, conf, disks)) {  in alloc_stripe()
2616 			ndisks[i] = conf->disks[i];  in resize_stripes()
2630 			kfree(conf->disks);  in resize_stripes()
2631 			conf->disks = ndisks;  in resize_stripes()
2714 	int disks = sh->disks, i;  in raid5_end_read_request()  local
2718 	for (i=0 ; i<disks; i++)  in raid5_end_read_request()
2725 	if (i == disks) {  in raid5_end_read_request()
2735 		rdev = conf->disks[i].replacement;  in raid5_end_read_request()
2737 		rdev = conf->disks[i].rdev;  in raid5_end_read_request()
2840 	int disks = sh->disks, i;  in raid5_end_write_request()  local
2844 	for (i = 0 ; i < disks; i++) {  in raid5_end_write_request()
2846 			rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2850 			rdev = conf->disks[i].replacement;  in raid5_end_write_request()
2858 				rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2865 	if (i == disks) {  in raid5_end_write_request()
3151 	int raid_disks = sh->disks;  in raid5_compute_blocknr()
3328 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3341 		for (i = disks; i--; ) {  in schedule_reconstruction()
3370 		if (s->locked + conf->max_degraded == disks)  in schedule_reconstruction()
3380 		for (i = disks; i--; ) {  in schedule_reconstruction()
3474 		for (i = 0; i < sh->disks; i++) {  in stripe_bio_overlaps()
3576 	int disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in stripe_set_idx()  local
3579 			     stripe * (disks - conf->max_degraded)  in stripe_set_idx()
3587 		     struct stripe_head_state *s, int disks)  in handle_failed_stripe()  argument
3591 	for (i = disks; i--; ) {  in handle_failed_stripe()
3595 			struct md_rdev *rdev = conf->disks[i].rdev;  in handle_failed_stripe()
3709 			struct md_rdev *rdev = conf->disks[i].rdev;  in handle_failed_sync()
3717 			rdev = conf->disks[i].replacement;  in handle_failed_sync()
3738 	rdev = sh->raid_conf->disks[disk_idx].replacement;  in want_replace()
3749 			   int disk_idx, int disks)  in need_this_block()  argument
3861 		       int disk_idx, int disks)  in fetch_block()  argument
3866 	if (need_this_block(sh, s, disk_idx, disks)) {  in fetch_block()
3883 		if ((s->uptodate == disks - 1) &&  in fetch_block()
3906 		} else if (s->uptodate == disks-2 && s->failed >= 2) {  in fetch_block()
3911 			for (other = disks; other--; ) {  in fetch_block()
3950 			       int disks)  in handle_stripe_fill()  argument
3974 		for (i = disks; i--; )  in handle_stripe_fill()
3975 			if (fetch_block(sh, s, i, disks))  in handle_stripe_fill()
3990 	struct stripe_head *sh, int disks)  in handle_stripe_clean_event()  argument
3998 	for (i = disks; i--; )  in handle_stripe_clean_event()
4104 				  int disks)  in handle_stripe_dirtying()  argument
4133 	} else for (i = disks; i--; ) {  in handle_stripe_dirtying()
4145 				rmw += 2*disks;  /* cannot read it */  in handle_stripe_dirtying()
4156 				rcw += 2*disks;  in handle_stripe_dirtying()
4168 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4198 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4223 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4251 	if (rcw > disks && rmw > disks &&  in handle_stripe_dirtying()
4273 				struct stripe_head_state *s, int disks)  in handle_parity_checks5()  argument
4284 			BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4304 		BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4366 				  int disks)  in handle_parity_checks6()  argument
4550 	for (i = 0; i < sh->disks; i++)  in handle_stripe_expansion()
4602 	int disks = sh->disks;  in analyse_stripe()  local
4616 	for (i=disks; i--; ) {  in analyse_stripe()
4658 		rdev = conf->disks[i].replacement;  in analyse_stripe()
4669 			rdev = conf->disks[i].rdev;  in analyse_stripe()
4726 			struct md_rdev *rdev2 = conf->disks[i].rdev;  in analyse_stripe()
4739 			struct md_rdev *rdev2 = conf->disks[i].rdev;  in analyse_stripe()
4748 			struct md_rdev *rdev2 = conf->disks[i].replacement;  in analyse_stripe()
4770 				rdev = conf->disks[i].replacement;  in analyse_stripe()
4871 		for (i = 0; i < sh->disks; i++) {  in break_stripe_batch_list()
4885 	for (i = 0; i < head_sh->disks; i++)  in break_stripe_batch_list()
4910 	int disks = sh->disks;  in handle_stripe()  local
5003 			handle_failed_stripe(conf, sh, &s, disks);  in handle_stripe()
5026 		for (i = disks; i--; ) {  in handle_stripe()
5069 		handle_stripe_clean_event(conf, sh, disks);  in handle_stripe()
5072 		r5c_handle_cached_data_endio(conf, sh, disks);  in handle_stripe()
5081 	    || (s.syncing && (s.uptodate + s.compute < disks))  in handle_stripe()
5084 		handle_stripe_fill(sh, &s, disks);  in handle_stripe()
5105 				handle_stripe_dirtying(conf, sh, &s, disks);  in handle_stripe()
5112 							    disks);  in handle_stripe()
5125 							     disks);  in handle_stripe()
5142 			handle_parity_checks6(conf, sh, &s, disks);  in handle_stripe()
5144 			handle_parity_checks5(conf, sh, &s, disks);  in handle_stripe()
5225 		sh->disks = conf->raid_disks;  in handle_stripe()
5255 		for (i = disks; i--; ) {  in handle_stripe()
5260 				rdev = conf->disks[i].rdev;  in handle_stripe()
5266 				rdev = conf->disks[i].rdev;  in handle_stripe()
5272 				rdev = conf->disks[i].replacement;  in handle_stripe()
5275 					rdev = conf->disks[i].rdev;  in handle_stripe()
5437 	rdev = conf->disks[dd_idx].replacement;  in raid5_read_one_chunk()
5440 		rdev = conf->disks[dd_idx].rdev;  in raid5_read_one_chunk()
5793 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in stripe_ahead_of_reshape()
5821 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in add_all_stripe_bios()
5846 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in add_all_stripe_bios()
6411 		for (j=sh->disks; j--;) {  in reshape_request()
6590 		struct md_rdev *rdev = conf->disks[i].rdev;  in raid5_sync_request()
7393 		if (conf->disks[i].extra_page)  in free_conf()
7394 			put_page(conf->disks[i].extra_page);  in free_conf()
7395 	kfree(conf->disks);  in free_conf()
7569 	conf->disks = kzalloc_objs(struct disk_info, max_disks);  in setup_conf()
7571 	if (!conf->disks)  in setup_conf()
7575 		conf->disks[i].extra_page = alloc_page(GFP_KERNEL);  in setup_conf()
7576 		if (!conf->disks[i].extra_page)  in setup_conf()
7626 		disk = conf->disks + raid_disk;  in setup_conf()
8001 		rdev = conf->disks[i].rdev;  in raid5_run()
8004 		if (conf->disks[i].replacement &&  in raid5_run()
8139 		struct md_rdev *rdev = READ_ONCE(conf->disks[i].rdev);  in raid5_status()
8161 		rdev = conf->disks[i].rdev;  in print_raid5_conf()
8178 		rdev = conf->disks[i].rdev;  in raid5_spare_active()
8179 		replacement = conf->disks[i].replacement;  in raid5_spare_active()
8240 	p = conf->disks + number;  in raid5_remove_disk()
8335 	    conf->disks[rdev->saved_raid_disk].rdev == NULL)  in raid5_add_disk()
8339 		p = conf->disks + disk;  in raid5_add_disk()
8353 		p = conf->disks + disk;  in raid5_add_disk()
8499 		if (conf->disks[i].replacement)  in raid5_start_reshape()
8649 				rdev = conf->disks[d].rdev;  in raid5_finish_reshape()
8652 				rdev = conf->disks[d].replacement;  in raid5_finish_reshape()