Report to the user what are the raid zones
raid0.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
Signed-off-by: raziebe@xxxxxxxxx
---
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 8049a92..0a6d0fa 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -52,6 +52,38 @@ static int raid0_congested(void *data, int bits)
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 *********",
+ mdname(mddev));
+ h = 0;
+ for (j = 0; j < conf->nr_strip_zones; j++) {
+ printk("\nzone%d", j);
+ printk("=[");
+ for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
+ printk("%s/",
+ bdevname(conf->devlist[j*mddev->raid_disks
+ + k]->bdev, b));
+
+ zone_size = conf->strip_zone[j].zone_end - zone_start;
+ printk("]\n\t 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;
@@ -291,6 +323,7 @@ static int raid0_run(mddev_t *mddev)
}
blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec);
+ dump_zones(mddev);
return 0;
}
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