switch simple generic_file_aio_read() users to ->read_iter()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 5be1f99..c57a9b1 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -888,9 +888,9 @@
 };
 
 const struct file_operations cifs_file_ops = {
-	.read = do_sync_read,
+	.read = new_sync_read,
 	.write = do_sync_write,
-	.aio_read = generic_file_aio_read,
+	.read_iter = generic_file_read_iter,
 	.aio_write = cifs_file_aio_write,
 	.open = cifs_open,
 	.release = cifs_close,
@@ -946,9 +946,9 @@
 };
 
 const struct file_operations cifs_file_nobrl_ops = {
-	.read = do_sync_read,
+	.read = new_sync_read,
 	.write = do_sync_write,
-	.aio_read = generic_file_aio_read,
+	.read_iter = generic_file_read_iter,
 	.aio_write = cifs_file_aio_write,
 	.open = cifs_open,
 	.release = cifs_close,