This gets rid of a usually needless call to iov_iter_advance(). Signed-off-by: Kent Overstreet <k...@daterainc.com> Cc: Alexander Viro <v...@zeniv.linux.org.uk> Cc: Jens Axboe <ax...@kernel.dk> Cc: Chris Mason <c...@fb.com> Cc: linux-bt...@vger.kernel.org Cc: Steve...