md: have raid0 compile with MD_DEBUG on

Because of the removal of the device list from
the strips raid0 did not compile with MD_DEBUG flag on
Signed-off-by: NeilBrown <neilb@suse.de>

drivers/md/raid0.c

@@ -400,7 +400,7 @@ static int raid0_make_request (struct request_queue *q, struct bio *bio)
 	return 0;
 }
 
-static void raid0_status (struct seq_file *seq, mddev_t *mddev)
+static void raid0_status(struct seq_file *seq, mddev_t *mddev)
 {
 #undef MD_DEBUG
 #ifdef MD_DEBUG
@@ -408,18 +408,24 @@ static void raid0_status (struct seq_file *seq, mddev_t *mddev)
 	char b[BDEVNAME_SIZE];
 	raid0_conf_t *conf = mddev->private;
 
+	sector_t zone_size;
+	sector_t zone_start = 0;
 	h = 0;
+
 	for (j = 0; j < conf->nr_strip_zones; j++) {
 		seq_printf(seq, "      z%d", j);
 		seq_printf(seq, "=[");
 		for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
 			seq_printf(seq, "%s/", bdevname(
-				conf->strip_zone[j].dev[k]->bdev,b));
-
-		seq_printf(seq, "] ze=%d ds=%d s=%d\n",
-				conf->strip_zone[j].zone_end,
-				conf->strip_zone[j].dev_start,
-				conf->strip_zone[j].sectors);
+				conf->devlist[j*mddev->raid_disks + k]
+						->bdev, b));
+
+		zone_size  = conf->strip_zone[j].zone_end - zone_start;
+		seq_printf(seq, "] ze=%lld ds=%lld s=%lld\n",
+			(unsigned long long)zone_start>>1,
+			(unsigned long long)conf->strip_zone[j].dev_start>>1,
+			(unsigned long long)zone_size>>1);
+		zone_start = conf->strip_zone[j].zone_end;
 	}
 #endif
 	seq_printf(seq, " %dk chunks", mddev->chunk_size/1024);