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()
869 	BUG_ON(sh->overwrite_disks > (sh->disks - sh->raid_conf->max_degraded));  in is_full_stripe_write()
870 	return sh->overwrite_disks == (sh->disks - sh->raid_conf->max_degraded);  in is_full_stripe_write()
1135 	int i, disks = sh->disks;  in ops_run_io()  local
1148 	for (i = disks; i--; ) {  in ops_run_io()
1179 		rrdev = rcu_dereference(conf->disks[i].replacement);  in ops_run_io()
1181 		rdev = rcu_dereference(conf->disks[i].rdev);  in ops_run_io()
1451 	for (i = sh->disks; i--; ) {  in ops_complete_biofill()
1490 	for (i = sh->disks; i--; ) {  in ops_run_biofill()
1554 	return (void *) (to_addr_page(percpu, i) + sh->disks + 2);  in to_addr_conv()
1563 	return (unsigned int *) (to_addr_conv(sh, percpu, 0) + sh->disks + 2);  in to_addr_offs()
1569 	int disks = sh->disks;  in ops_run_compute5()  local
1587 	for (i = disks; i--; ) {  in ops_run_compute5()
1623 	int disks = sh->disks;  in set_syndrome_sources()  local
1624 	int syndrome_disks = sh->ddf_layout ? disks : (disks - 2);  in set_syndrome_sources()
1629 	for (i = 0; i < disks; i++)  in set_syndrome_sources()
1657 		i = raid6_next_disk(i, disks);  in set_syndrome_sources()
1666 	int disks = sh->disks;  in ops_run_compute6_1()  local
1710 		for (i = disks; i-- ; ) {  in ops_run_compute6_1()
1730 	int i, count, disks = sh->disks;  in ops_run_compute6_2()  local
1731 	int syndrome_disks = sh->ddf_layout ? disks : disks-2;  in ops_run_compute6_2()
1753 	for (i = 0; i < disks ; i++) {  in ops_run_compute6_2()
1769 		i = raid6_next_disk(i, disks);  in ops_run_compute6_2()
1803 			for (i = disks; i-- ; ) {  in ops_run_compute6_2()
1866 	int disks = sh->disks;  in ops_run_prexor5()  local
1880 	for (i = disks; i--; ) {  in ops_run_prexor5()
1930 	int disks = sh->disks;  in ops_run_biodrain()  local
1937 	for (i = disks; i--; ) {  in ops_run_biodrain()
2001 	int disks = sh->disks;  in ops_complete_reconstruct()  local
2010 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
2016 	for (i = disks; i--; ) {  in ops_complete_reconstruct()
2049 	int disks = sh->disks;  in ops_run_reconstruct5()  local
2065 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct5()
2071 	if (i >= sh->disks) {  in ops_run_reconstruct5()
2088 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2099 		for (i = disks; i--; ) {  in ops_run_reconstruct5()
2158 	for (i = 0; i < sh->disks; i++) {  in ops_run_reconstruct6()
2164 	if (i >= sh->disks) {  in ops_run_reconstruct6()
2220 	int disks = sh->disks;  in ops_run_check_p()  local
2241 	for (i = disks; i--; ) {  in ops_run_check_p()
2284 	int overlap_clear = 0, i, disks = sh->disks;  in raid_run_ops()  local
2345 		for (i = disks; i--; ) {  in raid_run_ops()
2365 	int disks, struct r5conf *conf)  in alloc_stripe()  argument
2389 		if (init_stripe_shared_pages(sh, conf, disks)) {  in alloc_stripe()
2633 			ndisks[i] = conf->disks[i];  in resize_stripes()
2647 			kfree(conf->disks);  in resize_stripes()
2648 			conf->disks = ndisks;  in resize_stripes()
2753 	int disks = sh->disks, i;  in raid5_end_read_request()  local
2757 	for (i=0 ; i<disks; i++)  in raid5_end_read_request()
2764 	if (i == disks) {  in raid5_end_read_request()
2774 		rdev = rdev_pend_deref(conf->disks[i].replacement);  in raid5_end_read_request()
2776 		rdev = rdev_pend_deref(conf->disks[i].rdev);  in raid5_end_read_request()
2881 	int disks = sh->disks, i;  in raid5_end_write_request()  local
2887 	for (i = 0 ; i < disks; i++) {  in raid5_end_write_request()
2889 			rdev = rdev_pend_deref(conf->disks[i].rdev);  in raid5_end_write_request()
2893 			rdev = rdev_pend_deref(conf->disks[i].replacement);  in raid5_end_write_request()
2901 				rdev = rdev_pend_deref(conf->disks[i].rdev);  in raid5_end_write_request()
2908 	if (i == disks) {  in raid5_end_write_request()
3198 	int raid_disks = sh->disks;  in raid5_compute_blocknr()
3375 	int i, pd_idx = sh->pd_idx, qd_idx = sh->qd_idx, disks = sh->disks;  in schedule_reconstruction()  local
3388 		for (i = disks; i--; ) {  in schedule_reconstruction()
3417 		if (s->locked + conf->max_degraded == disks)  in schedule_reconstruction()
3427 		for (i = disks; i--; ) {  in schedule_reconstruction()
3521 		for (i = 0; i < sh->disks; i++) {  in stripe_bio_overlaps()
3643 	int disks = previous ? conf->previous_raid_disks : conf->raid_disks;  in stripe_set_idx()  local
3646 			     stripe * (disks - conf->max_degraded)  in stripe_set_idx()
3654 		     struct stripe_head_state *s, int disks)  in handle_failed_stripe()  argument
3658 	for (i = disks; i--; ) {  in handle_failed_stripe()
3665 			rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_stripe()
3791 			struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in handle_failed_sync()
3798 			rdev = rcu_dereference(conf->disks[i].replacement);  in handle_failed_sync()
3820 	rdev = rcu_dereference(sh->raid_conf->disks[disk_idx].replacement);  in want_replace()
3832 			   int disk_idx, int disks)  in need_this_block()  argument
3939 		       int disk_idx, int disks)  in fetch_block()  argument
3944 	if (need_this_block(sh, s, disk_idx, disks)) {  in fetch_block()
3961 		if ((s->uptodate == disks - 1) &&  in fetch_block()
3984 		} else if (s->uptodate == disks-2 && s->failed >= 2) {  in fetch_block()
3989 			for (other = disks; other--; ) {  in fetch_block()
4026 			       int disks)  in handle_stripe_fill()  argument
4050 		for (i = disks; i--; )  in handle_stripe_fill()
4051 			if (fetch_block(sh, s, i, disks))  in handle_stripe_fill()
4066 	struct stripe_head *sh, int disks)  in handle_stripe_clean_event()  argument
4074 	for (i = disks; i--; )  in handle_stripe_clean_event()
4183 				  int disks)  in handle_stripe_dirtying()  argument
4205 	} else for (i = disks; i--; ) {  in handle_stripe_dirtying()
4217 				rmw += 2*disks;  /* cannot read it */  in handle_stripe_dirtying()
4228 				rcw += 2*disks;  in handle_stripe_dirtying()
4241 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4271 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4296 		for (i = disks; i--; ) {  in handle_stripe_dirtying()
4323 	if (rcw > disks && rmw > disks &&  in handle_stripe_dirtying()
4345 				struct stripe_head_state *s, int disks)  in handle_parity_checks5()  argument
4356 			BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4376 		BUG_ON(s->uptodate != disks);  in handle_parity_checks5()
4439 				  int disks)  in handle_parity_checks6()  argument
4624 	for (i = 0; i < sh->disks; i++)  in handle_stripe_expansion()
4690 	int disks = sh->disks;  in analyse_stripe()  local
4705 	for (i=disks; i--; ) {  in analyse_stripe()
4749 		rdev = rcu_dereference(conf->disks[i].replacement);  in analyse_stripe()
4760 			rdev = rcu_dereference(conf->disks[i].rdev);  in analyse_stripe()
4808 				conf->disks[i].rdev);  in analyse_stripe()
4821 				conf->disks[i].rdev);  in analyse_stripe()
4830 				conf->disks[i].replacement);  in analyse_stripe()
4852 				    conf->disks[i].replacement);  in analyse_stripe()
4957 		for (i = 0; i < sh->disks; i++) {  in break_stripe_batch_list()
4971 	for (i = 0; i < head_sh->disks; i++)  in break_stripe_batch_list()
4987 	int disks = sh->disks;  in handle_stripe()  local
5079 			handle_failed_stripe(conf, sh, &s, disks);  in handle_stripe()
5102 		for (i = disks; i--; ) {  in handle_stripe()
5145 		handle_stripe_clean_event(conf, sh, disks);  in handle_stripe()
5148 		r5c_handle_cached_data_endio(conf, sh, disks);  in handle_stripe()
5157 	    || (s.syncing && (s.uptodate + s.compute < disks))  in handle_stripe()
5160 		handle_stripe_fill(sh, &s, disks);  in handle_stripe()
5181 				handle_stripe_dirtying(conf, sh, &s, disks);  in handle_stripe()
5188 							    disks);  in handle_stripe()
5201 							     disks);  in handle_stripe()
5218 			handle_parity_checks6(conf, sh, &s, disks);  in handle_stripe()
5220 			handle_parity_checks5(conf, sh, &s, disks);  in handle_stripe()
5301 		sh->disks = conf->raid_disks;  in handle_stripe()
5331 		for (i = disks; i--; ) {  in handle_stripe()
5336 				rdev = rdev_pend_deref(conf->disks[i].rdev);  in handle_stripe()
5343 				rdev = rdev_pend_deref(conf->disks[i].rdev);  in handle_stripe()
5349 				rdev = rdev_pend_deref(conf->disks[i].replacement);  in handle_stripe()
5352 					rdev = rdev_pend_deref(conf->disks[i].rdev);  in handle_stripe()
5525 	rdev = rcu_dereference(conf->disks[dd_idx].replacement);  in raid5_read_one_chunk()
5528 		rdev = rcu_dereference(conf->disks[dd_idx].rdev);  in raid5_read_one_chunk()
5900 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in stripe_ahead_of_reshape()
5929 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in add_all_stripe_bios()
5949 	for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {  in add_all_stripe_bios()
6371 		for (j=sh->disks; j--;) {  in reshape_request()
6550 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_sync_request()
7356 		if (conf->disks[i].extra_page)  in free_conf()
7357 			put_page(conf->disks[i].extra_page);  in free_conf()
7358 	kfree(conf->disks);  in free_conf()
7531 	conf->disks = kcalloc(max_disks, sizeof(struct disk_info),  in setup_conf()
7534 	if (!conf->disks)  in setup_conf()
7538 		conf->disks[i].extra_page = alloc_page(GFP_KERNEL);  in setup_conf()
7539 		if (!conf->disks[i].extra_page)  in setup_conf()
7589 		disk = conf->disks + raid_disk;  in setup_conf()
7898 		rdev = rdev_mdlock_deref(mddev, conf->disks[i].rdev);  in raid5_run()
7899 		if (!rdev && conf->disks[i].replacement) {  in raid5_run()
7902 						 conf->disks[i].replacement);  in raid5_run()
7903 			conf->disks[i].replacement = NULL;  in raid5_run()
7905 			rcu_assign_pointer(conf->disks[i].rdev, rdev);  in raid5_run()
7909 		if (rcu_access_pointer(conf->disks[i].replacement) &&  in raid5_run()
8104 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);  in raid5_status()
8127 		rdev = rcu_dereference(conf->disks[i].rdev);  in print_raid5_conf()
8145 		rdev = rdev_mdlock_deref(mddev, conf->disks[i].rdev);  in raid5_spare_active()
8147 						conf->disks[i].replacement);  in raid5_spare_active()
8208 	p = conf->disks + number;  in raid5_remove_disk()
8319 	    conf->disks[rdev->saved_raid_disk].rdev == NULL)  in raid5_add_disk()
8323 		p = conf->disks + disk;  in raid5_add_disk()
8337 		p = conf->disks + disk;  in raid5_add_disk()
8643 							 conf->disks[d].rdev);  in raid5_finish_reshape()
8647 						conf->disks[d].replacement);  in raid5_finish_reshape()