1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 423f4ca7d712..80cf8add46ff 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -488,6 +488,12 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
         bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
         iov_iter_bvec(&iter, ITER_BVEC | rw, bvec,
                       bio_segments(bio), blk_rq_bytes(cmd->rq));
+        /*
+         * This bio may be started from the middle of the 'bvec'
+         * because of bio splitting, so offset from the bvec must
+         * be passed to iov iterator
+         */
+        iter.iov_offset = bio->bi_iter.bi_bvec_done;
 
         cmd->iocb.ki_pos = pos;
         cmd->iocb.ki_filp = file;