diff --git a/[refs] b/[refs]
index 75b41b9e30d6..6fee49ee11be 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2dd9c257fbc243aa76ee6db0bb8371f9f74fad2d
+refs/heads/master: 6efd6e83092cd4a7532270bc843de90bb93f6683
diff --git a/trunk/drivers/md/dm-thin.c b/trunk/drivers/md/dm-thin.c
index 2d9e75586d60..7ca2bf2aafaa 100644
--- a/trunk/drivers/md/dm-thin.c
+++ b/trunk/drivers/md/dm-thin.c
@@ -2389,7 +2389,7 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
 static int thin_map(struct dm_target *ti, struct bio *bio,
 		    union map_info *map_context)
 {
-	bio->bi_sector -= ti->begin;
+	bio->bi_sector = dm_target_offset(ti, bio->bi_sector);
 
 	return thin_bio_map(ti, bio, map_context);
 }