535 	if (!mddev->raid_disks && list_empty(&mddev->disks) &&  in mddev_put()
1070 	if (sb->raid_disks <= 0)  in super_90_load()
1143 	if (mddev->raid_disks == 0) {  in super_90_validate()
1154 		mddev->raid_disks = sb->raid_disks;  in super_90_validate()
1262 	int next_spare = mddev->raid_disks;  in super_90_sync()
1295 	sb->raid_disks = mddev->raid_disks;  in super_90_sync()
1379 	for (i=0 ; i < mddev->raid_disks ; i++) {  in super_90_sync()
1640 	if (mddev->raid_disks == 0) {  in super_1_validate()
1650 		mddev->raid_disks = le32_to_cpu(sb->raid_disks);  in super_1_validate()
1816 	sb->raid_disks = cpu_to_le32(mddev->raid_disks);  in super_1_sync()
2209 			choice = mddev->raid_disks;  in bind_rdev_to_array()
2343 	mddev->raid_disks = 0;  in export_array()
2429 	    (mddev->raid_disks != le32_to_cpu(sb->raid_disks)) ||  in does_sb_need_changing()
2975 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
2976 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
2997 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
2998 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
3566 			    (mddev->raid_disks - min(0, mddev->delta_disks)) &&  in analyze_sbs()
3764 		mddev->raid_disks -= mddev->delta_disks;  in level_store()
3828 		if (rdev->new_raid_disk >= mddev->raid_disks)  in level_store()
3922 	if (mddev->raid_disks == 0)  in raid_disks_show()
3926 		return sprintf(page, "%d (%d)\n", mddev->raid_disks,  in raid_disks_show()
3927 			       mddev->raid_disks - mddev->delta_disks);  in raid_disks_show()
3928 	return sprintf(page, "%d\n", mddev->raid_disks);  in raid_disks_show()
3931 static int update_raid_disks(struct mddev *mddev, int raid_disks);
3950 		int olddisks = mddev->raid_disks - mddev->delta_disks;  in raid_disks_store()
3963 		mddev->raid_disks = n;  in raid_disks_store()
3966 		mddev->raid_disks = n;  in raid_disks_store()
3972 __ATTR(raid_disks, S_IRUGO|S_IWUSR, raid_disks_show, raid_disks_store);
4140 		    mddev->raid_disks == 0 &&  in array_state_show()
5452 	if (!mddev->raid_disks) {  in md_run()
5800 	mddev->raid_disks = 0;  in md_clean()
6166 		else if (mddev->raid_disks || mddev->major_version  in autorun_devices()
6243 	info.raid_disks    = mddev->raid_disks;  in get_array_info()
6357 	if (!mddev->raid_disks) {  in add_new_disk()
6411 			    info->raid_disk < mddev->raid_disks) {  in add_new_disk()
6517 		if (info->raid_disk < mddev->raid_disks)  in add_new_disk()
6522 		if (rdev->raid_disk < mddev->raid_disks)  in add_new_disk()
6760 	if (info->raid_disks == 0) {  in set_array_info()
6788 	mddev->raid_disks    = info->raid_disks;  in set_array_info()
6884 static int update_raid_disks(struct mddev *mddev, int raid_disks)  in update_raid_disks()  argument
6893 	if (raid_disks <= 0 ||  in update_raid_disks()
6894 	    (mddev->max_disks && raid_disks >= mddev->max_disks))  in update_raid_disks()
6902 		if (mddev->raid_disks < raid_disks &&  in update_raid_disks()
6905 		if (mddev->raid_disks > raid_disks &&  in update_raid_disks()
6910 	mddev->delta_disks = raid_disks - mddev->raid_disks;  in update_raid_disks()
6957 	if (mddev->raid_disks != info->raid_disks)  in update_array_info()
6986 	if (mddev->raid_disks    != info->raid_disks)  in update_array_info()
6987 		rv = update_raid_disks(mddev, info->raid_disks);  in update_array_info()
7174 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
7181 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
7251 		if (mddev->raid_disks) {  in md_ioctl()
7269 	if ((!mddev->raid_disks && !mddev->external)  in md_ioctl()
7861 	if (mddev->pers || mddev->raid_disks || !list_empty(&mddev->disks)) {  in md_seq_show()
9228 	if (mddev->raid_disks != le32_to_cpu(sb->raid_disks))  in check_sb_changes()
9229 		update_raid_disks(mddev, le32_to_cpu(sb->raid_disks));  in check_sb_changes()