238 	int delta_disks;  member
732 	mddev->delta_disks = 0;  in rs_set_new()
755 	rs->delta_disks = 0;  in raid_set_alloc()
765 	rs->md.delta_disks = 0;  in raid_set_alloc()
1395 			rs->delta_disks = value;  in parse_raid_params()
1624 	int delta_disks;  in rs_set_dev_and_array_sectors()  local
1630 		delta_disks = mddev->delta_disks;  in rs_set_dev_and_array_sectors()
1633 		delta_disks = rs->delta_disks;  in rs_set_dev_and_array_sectors()
1642 		    delta_disks < 0) {  in rs_set_dev_and_array_sectors()
1651 		array_sectors = (data_stripes + delta_disks) * dev_sectors;  in rs_set_dev_and_array_sectors()
1660 		array_sectors = (data_stripes + delta_disks) * dev_sectors;  in rs_set_dev_and_array_sectors()
1761 				mddev->delta_disks = mddev->raid_disks;  in rs_check_takeover()
1886 		 rs->delta_disks;  in rs_reshape_requested()
1890 		if (rs->delta_disks)  in rs_reshape_requested()
1891 			return !!rs->delta_disks;  in rs_reshape_requested()
1900 		       rs->delta_disks >= 0;  in rs_reshape_requested()
1967 	__le32 delta_disks;  member
2124 	sb->delta_disks = cpu_to_le32(mddev->delta_disks);  in super_sync()
2132 		if (mddev->delta_disks < 0 || mddev->reshape_backwards)  in super_sync()
2236 		mddev->delta_disks = le32_to_cpu(sb->delta_disks);  in super_init_validation()
2246 			if (mddev->delta_disks < 0 ||  in super_init_validation()
2247 			    (!mddev->delta_disks && (le32_to_cpu(sb->flags) & SB_FLAG_RESHAPE_BACKWARDS)))  in super_init_validation()
2283 			if (rs->delta_disks)  in super_init_validation()
2285 				      mddev->raid_disks, mddev->raid_disks + rs->delta_disks);  in super_init_validation()
2344 			   new_devs != rs->delta_disks) {  in super_init_validation()
2607 	if (rs->delta_disks < 0) {  in rs_adjust_data_offsets()
2619 	} else if (rs->delta_disks > 0) {  in rs_adjust_data_offsets()
2779 		if (rs->delta_disks) {  in rs_prepare_reshape()
2781 			mddev->degraded = rs->delta_disks < 0 ? -rs->delta_disks : rs->delta_disks;  in rs_prepare_reshape()
2835 	mddev->delta_disks = rs->delta_disks;  in rs_setup_reshape()
2839 	if (mddev->delta_disks &&  in rs_setup_reshape()
2841 		DMINFO("Ignoring invalid layout change with delta_disks=%d", rs->delta_disks);  in rs_setup_reshape()
2868 	if (rs->delta_disks > 0) {  in rs_setup_reshape()
2888 	} else if (rs->delta_disks < 0) {  in rs_setup_reshape()
3638 					 max(rs->delta_disks, mddev->delta_disks));  in raid_status()
4007 		if (mddev->delta_disks < 0)  in raid_resume()