olddisks         4069 drivers/md/md.c 		int olddisks = mddev->raid_disks - mddev->delta_disks;
olddisks         4073 drivers/md/md.c 			if (olddisks < n &&
olddisks         4076 drivers/md/md.c 			if (olddisks > n &&
olddisks         4081 drivers/md/md.c 		mddev->delta_disks = n - olddisks;