118 	if (sh->qd_idx == sh->disks - 1)  in raid6_d0()
222 		for (i = sh->disks; i--; )  in do_release_stripe()
490 init_stripe_shared_pages(struct stripe_head *sh, struct r5conf *conf, int disks)  in init_stripe_shared_pages()  argument
499 	nr_pages = (disks + cnt - 1) / cnt;  in init_stripe_shared_pages()
580 	sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in init_stripe()
585 	for (i = sh->disks; i--; ) {  in init_stripe()
641 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
643 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
667 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_calc_degraded()
669 			rdev = rcu_dereference(conf->disks[i].replacement);  in raid5_calc_degraded()
778 	BUG_ON(sh->overwrite_disks > (sh->disks - sh->raid_conf->max_degraded));  in is_full_stripe_write()
779 	return sh->overwrite_disks == (sh->disks - sh->raid_conf->max_degraded);  in is_full_stripe_write()
1060 	int i, disks = sh->disks;  in ops_run_io()  local
1072 	for (i = disks; i--; ) {  in ops_run_io()
1101 		rrdev = rcu_dereference(conf->disks[i].replacement);  in ops_run_io()
1103 		rdev = rcu_dereference(conf->disks[i].rdev);  in ops_run_io()
1380 	for (i = sh->disks; i--; ) {  in ops_complete_biofill()
1419 	for (i = sh->disks; i--; ) {  in ops_run_biofill()
1483 	return (void *) (to_addr_page(percpu, i) + sh->disks + 2);  in to_addr_conv()
1492 	return (unsigned int *) (to_addr_conv(sh, percpu, 0) + sh->disks + 2);  in to_addr_offs()
1498 	int disks = sh->disks;  in ops_run_compute5()  local
1516 	for (i = disks; i--; ) {  in ops_run_compute5()
1552 	int disks = sh->disks;  in set_syndrome_sources()  local
1553 	int syndrome_disks = sh->ddf_layout ? disks : (disks - 2);  in set_syndrome_sources()
1558 	for (i = 0; i < disks; i++)  in set_syndrome_sources()
1586 		i = raid6_next_disk(i, disks);  in set_syndrome_sources()
1595 	int disks = sh->disks;  in ops_run_compute6_1()  local
1639 		for (i = disks; i-- ; ) {  in ops_run_compute6_1()
1659 	int i, count, disks = sh->disks;  in ops_run_compute6_2()  local
1660 	int syndrome_disks = sh->ddf_layout ? disks : disks-2;  in ops_run_compute6_2()
1682 	for (i = 0; i < disks ; i++) {  in ops_run_compute6_2()
1698 		i = raid6_next_disk(i, disks);  in ops_run_compute6_2()
1732 			for (i = disks; i-- ; ) {  in ops_run_compute6_2()
1795 	int disks = sh->disks;  in ops_run_prexor5()  local
1809 	for (i = disks; i--; ) {  in ops_run_prexor5()
1859 	int disks = sh->disks;  in ops_run_biodrain()  local
1866 	for (i = disks; i--; ) {  in ops_run_biodrain()
1930 	int disks = sh->disks;  in ops_complete_reconstruct()  local
1939 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
1945 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
1978 	int disks = sh->disks;  in ops_run_reconstruct5()  local
1994 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct5()
2000 	if (i >= sh->disks) {  in ops_run_reconstruct5()
2017 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2028 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2087 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct6()
2093 	if (i >= sh->disks) {  in ops_run_reconstruct6()
2149 	int disks = sh->disks;  in ops_run_check_p()  local
2170 	for (i = disks; i--; ) {  in ops_run_check_p()
2213 	int overlap_clear = 0, i, disks = sh->disks;  in raid_run_ops()  local
2275 		for (i = disks; i--; ) {  in raid_run_ops()
2294 	int disks, struct r5conf *conf)  in alloc_stripe()  argument
2310 		for (i = 0; i < disks; i++) {  in alloc_stripe()
2325 		if (init_stripe_shared_pages(sh, conf, disks)) {  in alloc_stripe()
2569 			ndisks[i] = conf->disks[i];  in resize_stripes()
2583 			kfree(conf->disks);  in resize_stripes()
2584 			conf->disks = ndisks;  in resize_stripes()
2667 	int disks = sh->disks, i;  in raid5_end_read_request()  local
2672 	for (i=0 ; i<disks; i++)  in raid5_end_read_request()
2679 	if (i == disks) {  in raid5_end_read_request()
2690 		rdev = conf->disks[i].replacement;  in raid5_end_read_request()
2692 		rdev = conf->disks[i].rdev;  in raid5_end_read_request()
2798 	int disks = sh->disks, i;  in raid5_end_write_request()  local
2804 	for (i = 0 ; i < disks; i++) {  in raid5_end_write_request()
2806 			rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2810 			rdev = conf->disks[i].replacement;  in raid5_end_write_request()
2818 				rdev = conf->disks[i].rdev;  in raid5_end_write_request()
2825 	if (i == disks) {  in raid5_end_write_request()
3120 	int raid_disks = sh->disks;  in raid5_compute_blocknr()
3297 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3310 		for (i = disks; i--; ) {  in schedule_reconstruction()
3339 		if (s->locked + conf->max_degraded == disks)  in schedule_reconstruction()
3349 		for (i = disks; i--; ) {  in schedule_reconstruction()
3451 		for (i = 0; i < sh->disks; i++) {  in add_stripe_bio()
3541 	int disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in stripe_set_idx()  local
3544 			     stripe * (disks - conf->max_degraded)  in stripe_set_idx()
3552 		     struct stripe_head_state *s, int disks)  in handle_failed_stripe()  argument
3556 	for (i = disks; i--; ) {  in handle_failed_stripe()
3563 			rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_stripe()
3689 			struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_sync()
3696 			rdev = rcu_dereference(conf->disks[i].replacement);  in handle_failed_sync()
3718 	rdev = rcu_dereference(sh->raid_conf->disks[disk_idx].replacement);  in want_replace()
3730 			   int disk_idx, int disks)  in need_this_block()  argument
3837 		       int disk_idx, int disks)  in fetch_block()  argument
3842 	if (need_this_block(sh, s, disk_idx, disks)) {  in fetch_block()
3859 		if ((s->uptodate == disks - 1) &&  in fetch_block()
3882 		} else if (s->uptodate == disks-2 && s->failed >= 2) {  in fetch_block()
3887 			for (other = disks; other--; ) {  in fetch_block()
3924 			       int disks)  in handle_stripe_fill()  argument
3948 		for (i = disks; i--; )  in handle_stripe_fill()
3949 			if (fetch_block(sh, s, i, disks))  in handle_stripe_fill()
3964 	struct stripe_head *sh, int disks)  in handle_stripe_clean_event()  argument
3972 	for (i = disks; i--; )  in handle_stripe_clean_event()
4081 				  int disks)  in handle_stripe_dirtying()  argument
4103 	} else for (i = disks; i--; ) {  in handle_stripe_dirtying()
4115 				rmw += 2*disks;  /* cannot read it */  in handle_stripe_dirtying()
4126 				rcw += 2*disks;  in handle_stripe_dirtying()
4139 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4169 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4194 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4221 	if (rcw > disks && rmw > disks &&  in handle_stripe_dirtying()
4243 				struct stripe_head_state *s, int disks)  in handle_parity_checks5()  argument
4254 			BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4274 		BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4337 				  int disks)  in handle_parity_checks6()  argument
4522 	for (i = 0; i < sh->disks; i++)  in handle_stripe_expansion()
4587 	int disks = sh->disks;  in analyse_stripe()  local
4602 	for (i=disks; i--; ) {  in analyse_stripe()
4646 		rdev = rcu_dereference(conf->disks[i].replacement);  in analyse_stripe()
4657 			rdev = rcu_dereference(conf->disks[i].rdev);  in analyse_stripe()
4705 				conf->disks[i].rdev);  in analyse_stripe()
4718 				conf->disks[i].rdev);  in analyse_stripe()
4727 				conf->disks[i].replacement);  in analyse_stripe()
4749 				    conf->disks[i].replacement);  in analyse_stripe()
4854 		for (i = 0; i < sh->disks; i++) {  in break_stripe_batch_list()
4868 	for (i = 0; i < head_sh->disks; i++)  in break_stripe_batch_list()
4884 	int disks = sh->disks;  in handle_stripe()  local
4976 			handle_failed_stripe(conf, sh, &s, disks);  in handle_stripe()
4999 		for (i = disks; i--; ) {  in handle_stripe()
5042 		handle_stripe_clean_event(conf, sh, disks);  in handle_stripe()
5045 		r5c_handle_cached_data_endio(conf, sh, disks);  in handle_stripe()
5054 	    || (s.syncing && (s.uptodate + s.compute < disks))  in handle_stripe()
5057 		handle_stripe_fill(sh, &s, disks);  in handle_stripe()
5078 				handle_stripe_dirtying(conf, sh, &s, disks);  in handle_stripe()
5085 							    disks);  in handle_stripe()
5098 							     disks);  in handle_stripe()
5115 			handle_parity_checks6(conf, sh, &s, disks);  in handle_stripe()
5117 			handle_parity_checks5(conf, sh, &s, disks);  in handle_stripe()
5196 		sh->disks = conf->raid_disks;  in handle_stripe()
5226 		for (i = disks; i--; ) {  in handle_stripe()
5231 				rdev = conf->disks[i].rdev;  in handle_stripe()
5238 				rdev = conf->disks[i].rdev;  in handle_stripe()
5244 				rdev = conf->disks[i].replacement;  in handle_stripe()
5247 					rdev = conf->disks[i].rdev;  in handle_stripe()
5419 	rdev = rcu_dereference(conf->disks[dd_idx].replacement);  in raid5_read_one_chunk()
5422 		rdev = rcu_dereference(conf->disks[dd_idx].rdev);  in raid5_read_one_chunk()
6114 		for (j=sh->disks; j--;) {  in reshape_request()
6291 		struct md_rdev *rdev = READ_ONCE(conf->disks[i].rdev);  in raid5_sync_request()
7086 		if (conf->disks[i].extra_page)  in free_conf()
7087 			put_page(conf->disks[i].extra_page);  in free_conf()
7088 	kfree(conf->disks);  in free_conf()
7260 	conf->disks = kcalloc(max_disks, sizeof(struct disk_info),  in setup_conf()
7263 	if (!conf->disks)  in setup_conf()
7267 		conf->disks[i].extra_page = alloc_page(GFP_KERNEL);  in setup_conf()
7268 		if (!conf->disks[i].extra_page)  in setup_conf()
7314 		disk = conf->disks + raid_disk;  in setup_conf()
7608 		rdev = conf->disks[i].rdev;  in raid5_run()
7609 		if (!rdev && conf->disks[i].replacement) {  in raid5_run()
7611 			rdev = conf->disks[i].replacement;  in raid5_run()
7612 			conf->disks[i].replacement = NULL;  in raid5_run()
7614 			conf->disks[i].rdev = rdev;  in raid5_run()
7618 		if (conf->disks[i].replacement &&  in raid5_run()
7810 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_status()
7833 		tmp = conf->disks + i;  in print_raid5_conf()
7850 		tmp = conf->disks + i;  in raid5_spare_active()
7890 	struct disk_info *p = conf->disks + number;  in raid5_remove_disk()
8013 	    conf->disks[rdev->saved_raid_disk].rdev == NULL)  in raid5_add_disk()
8017 		p = conf->disks + disk;  in raid5_add_disk()
8031 		p = conf->disks + disk;  in raid5_add_disk()
8334 				struct md_rdev *rdev = conf->disks[d].rdev;  in raid5_finish_reshape()
8337 				rdev = conf->disks[d].replacement;  in raid5_finish_reshape()