nfs/localio: remove 61 byte hole from needless ____cacheline_aligned

struct nfs_local_kiocb used ____cacheline_aligned on its iters[] array
and as the structure evolved it caused a 61 byte hole to form.  Fix
this by removing ____cacheline_aligned and reordering iters[] before
iter_is_dio_aligned[].

Fixes: 6a218b9 ("nfs/localio: do not issue misaligned DIO out-of-order")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

Author: Mike Snitzer

fs/nfs/localio.c

@@ -43,8 +43,8 @@ struct nfs_local_kiocb {
 	size_t                  end_len;
 	short int		end_iter_index;
 	atomic_t		n_iters;
+	struct iov_iter		iters[NFSLOCAL_MAX_IOS];
 	bool			iter_is_dio_aligned[NFSLOCAL_MAX_IOS];
-	struct iov_iter		iters[NFSLOCAL_MAX_IOS] ____cacheline_aligned;
 	/* End mostly DIO-specific members */
 };