1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 74136262d654..7c081bcbc3cf 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -445,7 +445,7 @@ static sector_t map_sector(struct mirror *m, struct bio *bio)
 {
         if (unlikely(!bio->bi_size))
                 return 0;
-        return m->offset + (bio->bi_sector - m->ms->ti->begin);
+        return m->offset + dm_target_offset(m->ms->ti, bio->bi_sector);
 }
 
 static void map_bio(struct mirror *m, struct bio *bio)