484 	if (!mddev->raid_disks && list_empty(&mddev->disks) &&  in mddev_put()
998 	if (sb->raid_disks <= 0)  in super_90_load()
1072 	if (mddev->raid_disks == 0) {  in super_90_validate()
1083 		mddev->raid_disks = sb->raid_disks;  in super_90_validate()
1189 	int next_spare = mddev->raid_disks;  in super_90_sync()
1222 	sb->raid_disks = mddev->raid_disks;  in super_90_sync()
1304 	for (i=0 ; i < mddev->raid_disks ; i++) {  in super_90_sync()
1560 	if (mddev->raid_disks == 0) {  in super_1_validate()
1570 		mddev->raid_disks = le32_to_cpu(sb->raid_disks);  in super_1_validate()
1707 	sb->raid_disks = cpu_to_le32(mddev->raid_disks);  in super_1_sync()
2058 			choice = mddev->raid_disks;  in bind_rdev_to_array()
2194 	mddev->raid_disks = 0;  in export_array()
2698 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
2699 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
2720 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
2721 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
3232 		} else if (rdev->raid_disk >= (mddev->raid_disks - min(0, mddev->delta_disks))) {  in analyze_sbs()
3426 		mddev->raid_disks -= mddev->delta_disks;  in level_store()
3489 		if (rdev->new_raid_disk >= mddev->raid_disks)  in level_store()
3584 	if (mddev->raid_disks == 0)  in raid_disks_show()
3588 		return sprintf(page, "%d (%d)\n", mddev->raid_disks,  in raid_disks_show()
3589 			       mddev->raid_disks - mddev->delta_disks);  in raid_disks_show()
3590 	return sprintf(page, "%d\n", mddev->raid_disks);  in raid_disks_show()
3593 static int update_raid_disks(struct mddev *mddev, int raid_disks);
3612 		int olddisks = mddev->raid_disks - mddev->delta_disks;  in raid_disks_store()
3625 		mddev->raid_disks = n;  in raid_disks_store()
3628 		mddev->raid_disks = n;  in raid_disks_store()
3634 __ATTR(raid_disks, S_IRUGO|S_IWUSR, raid_disks_show, raid_disks_store);
3795 		    mddev->raid_disks == 0 &&  in array_state_show()
5022 	if (!mddev->raid_disks) {  in md_run()
5270 	mddev->raid_disks = 0;  in md_clean()
5640 		else if (mddev->raid_disks || mddev->major_version  in autorun_devices()
5715 	info.raid_disks    = mddev->raid_disks;  in get_array_info()
5825 	if (!mddev->raid_disks) {  in add_new_disk()
5883 			    info->raid_disk < mddev->raid_disks) {  in add_new_disk()
5962 		if (info->raid_disk < mddev->raid_disks)  in add_new_disk()
5967 		if (rdev->raid_disk < mddev->raid_disks)  in add_new_disk()
6206 	if (info->raid_disks == 0) {  in set_array_info()
6235 	mddev->raid_disks    = info->raid_disks;  in set_array_info()
6323 static int update_raid_disks(struct mddev *mddev, int raid_disks)  in update_raid_disks()  argument
6332 	if (raid_disks <= 0 ||  in update_raid_disks()
6333 	    (mddev->max_disks && raid_disks >= mddev->max_disks))  in update_raid_disks()
6341 		if (mddev->raid_disks < raid_disks &&  in update_raid_disks()
6344 		if (mddev->raid_disks > raid_disks &&  in update_raid_disks()
6349 	mddev->delta_disks = raid_disks - mddev->raid_disks;  in update_raid_disks()
6396 	if (mddev->raid_disks != info->raid_disks)  in update_array_info()
6427 	if (mddev->raid_disks    != info->raid_disks)  in update_array_info()
6428 		rv = update_raid_disks(mddev, info->raid_disks);  in update_array_info()
6606 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
6613 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
6685 		if (mddev->raid_disks) {  in md_ioctl()
6706 	if ((!mddev->raid_disks && !mddev->external)  in md_ioctl()
7253 	if (mddev->pers || mddev->raid_disks || !list_empty(&mddev->disks)) {  in md_seq_show()
8901 	mddev->raid_disks = 0;  in md_reload_sb()