623 	if (!mddev->raid_disks && list_empty(&mddev->disks) &&  in mddev_put()
1181 	if (sb->raid_disks <= 0)  in super_90_load()
1265 	if (mddev->raid_disks == 0) {  in super_90_validate()
1276 		mddev->raid_disks = sb->raid_disks;  in super_90_validate()
1386 	int next_spare = mddev->raid_disks;  in super_90_sync()
1419 	sb->raid_disks = mddev->raid_disks;  in super_90_sync()
1503 	for (i=0 ; i < mddev->raid_disks ; i++) {  in super_90_sync()
1776 	if (mddev->raid_disks == 0) {  in super_1_validate()
1786 		mddev->raid_disks = le32_to_cpu(sb->raid_disks);  in super_1_validate()
1963 	sb->raid_disks = cpu_to_le32(mddev->raid_disks);  in super_1_sync()
2391 			choice = mddev->raid_disks;  in bind_rdev_to_array()
2414 	if (mddev->raid_disks)  in bind_rdev_to_array()
2498 	mddev->raid_disks = 0;  in export_array()
2586 	    (mddev->raid_disks != le32_to_cpu(sb->raid_disks)) ||  in does_sb_need_changing()
3147 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
3148 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
3168 		if (slot >= rdev->mddev->raid_disks &&  in slot_store()
3169 		    slot >= rdev->mddev->raid_disks + rdev->mddev->delta_disks)  in slot_store()
3762 			    (mddev->raid_disks - min(0, mddev->delta_disks)) &&  in analyze_sbs()
3959 		mddev->raid_disks -= mddev->delta_disks;  in level_store()
4025 		if (rdev->new_raid_disk >= mddev->raid_disks)  in level_store()
4119 	if (mddev->raid_disks == 0)  in raid_disks_show()
4123 		return sprintf(page, "%d (%d)\n", mddev->raid_disks,  in raid_disks_show()
4124 			       mddev->raid_disks - mddev->delta_disks);  in raid_disks_show()
4125 	return sprintf(page, "%d\n", mddev->raid_disks);  in raid_disks_show()
4128 static int update_raid_disks(struct mddev *mddev, int raid_disks);
4147 		int olddisks = mddev->raid_disks - mddev->delta_disks;  in raid_disks_store()
4160 		mddev->raid_disks = n;  in raid_disks_store()
4163 		mddev->raid_disks = n;  in raid_disks_store()
4169 __ATTR(raid_disks, S_IRUGO|S_IWUSR, raid_disks_show, raid_disks_store);
4352 		    mddev->raid_disks == 0 &&  in array_state_show()
5813 	if (!mddev->raid_disks) {  in md_run()
6180 	mddev->raid_disks = 0;  in md_clean()
6548 		else if (mddev->raid_disks || mddev->major_version  in autorun_devices()
6625 	info.raid_disks    = mddev->raid_disks;  in get_array_info()
6738 	if (!mddev->raid_disks) {  in md_add_new_disk()
6792 			    info->raid_disk < mddev->raid_disks) {  in md_add_new_disk()
6897 		if (info->raid_disk < mddev->raid_disks)  in md_add_new_disk()
6902 		if (rdev->raid_disk < mddev->raid_disks)  in md_add_new_disk()
7157 	if (info->raid_disks == 0) {  in md_set_array_info()
7185 	mddev->raid_disks    = info->raid_disks;  in md_set_array_info()
7284 static int update_raid_disks(struct mddev *mddev, int raid_disks)  in update_raid_disks()  argument
7293 	if (raid_disks <= 0 ||  in update_raid_disks()
7294 	    (mddev->max_disks && raid_disks >= mddev->max_disks))  in update_raid_disks()
7303 		if (mddev->raid_disks < raid_disks &&  in update_raid_disks()
7306 		if (mddev->raid_disks > raid_disks &&  in update_raid_disks()
7311 	mddev->delta_disks = raid_disks - mddev->raid_disks;  in update_raid_disks()
7358 	if (mddev->raid_disks != info->raid_disks)  in update_array_info()
7387 	if (mddev->raid_disks    != info->raid_disks)  in update_array_info()
7388 		rv = update_raid_disks(mddev, info->raid_disks);  in update_array_info()
7543 	if (mddev->raid_disks) {  in __md_set_array_info()
7601 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
7608 		if (!mddev->raid_disks && !mddev->external)  in md_ioctl()
7666 	if ((!mddev->raid_disks && !mddev->external)  in md_ioctl()
7812 	if (!mddev->raid_disks && !mddev->external) {  in md_set_read_only()
8305 	if (mddev->pers || mddev->raid_disks || !list_empty(&mddev->disks)) {  in md_seq_show()
9504 	    mddev->degraded != mddev->raid_disks) {  in md_reap_sync_thread()
9784 	if (mddev->raid_disks != le32_to_cpu(sb->raid_disks)) {  in check_sb_changes()
9785 		ret = update_raid_disks(mddev, le32_to_cpu(sb->raid_disks));  in check_sb_changes()