dm raid: remove WARN_ON() in raid10_md_layout_to_format()

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
mariux64 · Jul 25, 2017 · bbac1e0 · bbac1e0
1 parent edc11d4
commit bbac1e0
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
@@ -564,9 +564,10 @@ static const char *raid10_md_layout_to_format(int layout)
 	if (__raid10_near_copies(layout) > 1)
 		return "near";
 
-	WARN_ON(__raid10_far_copies(layout) < 2);
+	if (__raid10_far_copies(layout) > 1)
+		return "far";
 
-	return "far";
+	return "unknown";
 }
 
 /* Return md raid10 algorithm for @name */