md: have raid0 report its formation
Report to the user what are the raid zones
Signed-off-by: raziebe@gmail.com
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index d8692fc..62fde23 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -52,6 +52,38 @@
return ret;
}
+/*
+ * inform the user of the raid configuration
+*/
+static void dump_zones(mddev_t *mddev)
+{
+ int j, k, h;
+ sector_t zone_size = 0;
+ sector_t zone_start = 0;
+ char b[BDEVNAME_SIZE];
+ raid0_conf_t *conf = mddev->private;
+ printk(KERN_INFO "******* %s configuration *********\n",
+ mdname(mddev));
+ h = 0;
+ for (j = 0; j < conf->nr_strip_zones; j++) {
+ printk(KERN_INFO "zone%d=[", j);
+ for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
+ printk("%s/",
+ bdevname(conf->devlist[j*mddev->raid_disks
+ + k]->bdev, b));
+ printk("]\n");
+
+ zone_size = conf->strip_zone[j].zone_end - zone_start;
+ printk(KERN_INFO " zone offset=%llukb "
+ "device offset=%llukb size=%llukb\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;
+ }
+ printk(KERN_INFO "**********************************\n\n");
+}
+
static int create_strip_zones(mddev_t *mddev)
{
int i, c, j, err;
@@ -289,6 +321,7 @@
}
blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec);
+ dump_zones(mddev);
return 0;
}