235 	int delta_disks;  member
728 	mddev->delta_disks = 0;  in rs_set_new()
751 	rs->delta_disks = 0;  in raid_set_alloc()
761 	rs->md.delta_disks = 0;  in raid_set_alloc()
1391 			rs->delta_disks = value;  in parse_raid_params()
1620 	int delta_disks;  in rs_set_dev_and_array_sectors()  local
1627 		delta_disks = mddev->delta_disks;  in rs_set_dev_and_array_sectors()
1630 		delta_disks = rs->delta_disks;  in rs_set_dev_and_array_sectors()
1639 		    delta_disks < 0) {  in rs_set_dev_and_array_sectors()
1648 		array_sectors = (data_stripes + delta_disks) * dev_sectors;  in rs_set_dev_and_array_sectors()
1657 		array_sectors = (data_stripes + delta_disks) * dev_sectors;  in rs_set_dev_and_array_sectors()
1784 				mddev->delta_disks = mddev->raid_disks;  in rs_check_takeover()
1909 		 rs->delta_disks;  in rs_reshape_requested()
1913 		if (rs->delta_disks)  in rs_reshape_requested()
1914 			return !!rs->delta_disks;  in rs_reshape_requested()
1923 		       rs->delta_disks >= 0;  in rs_reshape_requested()
1990 	__le32 delta_disks;  member
2147 	sb->delta_disks = cpu_to_le32(mddev->delta_disks);  in super_sync()
2155 		if (mddev->delta_disks < 0 || mddev->reshape_backwards)  in super_sync()
2259 		mddev->delta_disks = le32_to_cpu(sb->delta_disks);  in super_init_validation()
2269 			if (mddev->delta_disks < 0 ||  in super_init_validation()
2270 			    (!mddev->delta_disks && (le32_to_cpu(sb->flags) & SB_FLAG_RESHAPE_BACKWARDS)))  in super_init_validation()
2306 			if (rs->delta_disks)  in super_init_validation()
2308 				      mddev->raid_disks, mddev->raid_disks + rs->delta_disks);  in super_init_validation()
2363 		if (new_devs == 1 && !rs->delta_disks)  in super_init_validation()
2369 			   new_devs != rs->delta_disks) {  in super_init_validation()
2632 	if (rs->delta_disks < 0) {  in rs_adjust_data_offsets()
2644 	} else if (rs->delta_disks > 0) {  in rs_adjust_data_offsets()
2804 		if (rs->delta_disks) {  in rs_prepare_reshape()
2806 			mddev->degraded = rs->delta_disks < 0 ? -rs->delta_disks : rs->delta_disks;  in rs_prepare_reshape()
2860 	mddev->delta_disks = rs->delta_disks;  in rs_setup_reshape()
2864 	if (mddev->delta_disks &&  in rs_setup_reshape()
2866 		DMINFO("Ignoring invalid layout change with delta_disks=%d", rs->delta_disks);  in rs_setup_reshape()
2893 	if (rs->delta_disks > 0) {  in rs_setup_reshape()
2913 	} else if (rs->delta_disks < 0) {  in rs_setup_reshape()
3657 					 max(rs->delta_disks, mddev->delta_disks));  in raid_status()
4003 		if (mddev->delta_disks < 0)  in raid_resume()