--- kernel/drivers/md/dm-raid1.c.orig	2005-06-16 07:13:50.610325768 -0400
+++ kernel/drivers/md/dm-raid1.c	2005-06-16 10:34:12.510719112 -0400
@@ -269,9 +269,12 @@ static inline struct region *__rh_find(s
 {
 	struct region *reg;
 
+retry:
 	reg = __rh_lookup(rh, region);
-	if (!reg)
+	if (!reg) {
 		reg = __rh_alloc(rh, region);
+		goto retry;
+	}
 
 	return reg;
 }