468 	if (!mddev->raid_disks && list_empty(&mddev->disks) &&  in mddev_put()
983 	if (sb->raid_disks <= 0)  in super_90_load()
1057 	if (mddev->raid_disks == 0) {  in super_90_validate()
1068 		mddev->raid_disks = sb->raid_disks;  in super_90_validate()
1174 	int next_spare = mddev->raid_disks;  in super_90_sync()
1207 	sb->raid_disks = mddev->raid_disks;  in super_90_sync()
1289 	for (i=0 ; i < mddev->raid_disks ; i++) {  in super_90_sync()
1545 	if (mddev->raid_disks == 0) {  in super_1_validate()
1555 		mddev->raid_disks = le32_to_cpu(sb->raid_disks);  in super_1_validate()
1710 	sb->raid_disks = cpu_to_le32(mddev->raid_disks);  in super_1_sync()
2083 			choice = mddev->raid_disks;  in bind_rdev_to_array()
2218 	mddev->raid_disks = 0;  in export_array()
2277 	    (mddev->raid_disks != le32_to_cpu(sb->raid_disks)) ||  in does_sb_need_changing()
2794 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
2795 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
2816 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
2817 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
3323 			    (mddev->raid_disks - min(0, mddev->delta_disks)) &&  in analyze_sbs()
3521 		mddev->raid_disks -= mddev->delta_disks;  in level_store()
3584 		if (rdev->new_raid_disk >= mddev->raid_disks)  in level_store()
3679 	if (mddev->raid_disks == 0)  in raid_disks_show()
3683 		return sprintf(page, "%d (%d)\n", mddev->raid_disks,  in raid_disks_show()
3684 			       mddev->raid_disks - mddev->delta_disks);  in raid_disks_show()
3685 	return sprintf(page, "%d\n", mddev->raid_disks);  in raid_disks_show()
3688 static int update_raid_disks(struct mddev *mddev, int raid_disks);
3707 		int olddisks = mddev->raid_disks - mddev->delta_disks;  in raid_disks_store()
3720 		mddev->raid_disks = n;  in raid_disks_store()
3723 		mddev->raid_disks = n;  in raid_disks_store()
3729 __ATTR(raid_disks, S_IRUGO|S_IWUSR, raid_disks_show, raid_disks_store);
3895 		    mddev->raid_disks == 0 &&  in array_state_show()
5137 	if (!mddev->raid_disks) {  in md_run()
5412 	mddev->raid_disks = 0;  in md_clean()
5781 		else if (mddev->raid_disks || mddev->major_version  in autorun_devices()
5856 	info.raid_disks    = mddev->raid_disks;  in get_array_info()
5968 	if (!mddev->raid_disks) {  in add_new_disk()
6026 			    info->raid_disk < mddev->raid_disks) {  in add_new_disk()
6110 		if (info->raid_disk < mddev->raid_disks)  in add_new_disk()
6115 		if (rdev->raid_disk < mddev->raid_disks)  in add_new_disk()
6349 	if (info->raid_disks == 0) {  in set_array_info()
6378 	mddev->raid_disks    = info->raid_disks;  in set_array_info()
6466 static int update_raid_disks(struct mddev *mddev, int raid_disks)  in update_raid_disks()  argument
6475 	if (raid_disks <= 0 ||  in update_raid_disks()
6476 	    (mddev->max_disks && raid_disks >= mddev->max_disks))  in update_raid_disks()
6484 		if (mddev->raid_disks < raid_disks &&  in update_raid_disks()
6487 		if (mddev->raid_disks > raid_disks &&  in update_raid_disks()
6492 	mddev->delta_disks = raid_disks - mddev->raid_disks;  in update_raid_disks()
6539 	if (mddev->raid_disks != info->raid_disks)  in update_array_info()
6568 	if (mddev->raid_disks    != info->raid_disks)  in update_array_info()
6569 		rv = update_raid_disks(mddev, info->raid_disks);  in update_array_info()
6743 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
6750 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
6822 		if (mddev->raid_disks) {  in md_ioctl()
6843 	if ((!mddev->raid_disks && !mddev->external)  in md_ioctl()
7405 	if (mddev->pers || mddev->raid_disks || !list_empty(&mddev->disks)) {  in md_seq_show()
9124 	if (mddev->raid_disks != le32_to_cpu(sb->raid_disks))  in check_sb_changes()
9125 		update_raid_disks(mddev, le32_to_cpu(sb->raid_disks));  in check_sb_changes()