ecryptfs: switch to ->read_iter()

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

fs/ecryptfs/file.c

@@ -45,14 +45,13 @@
  * The function to be used for directory reads is ecryptfs_read.
  */
 static ssize_t ecryptfs_read_update_atime(struct kiocb *iocb,
-				const struct iovec *iov,
-				unsigned long nr_segs, loff_t pos)
+				struct iov_iter *to)
 {
 	ssize_t rc;
 	struct path *path;
 	struct file *file = iocb->ki_filp;
 
-	rc = generic_file_aio_read(iocb, iov, nr_segs, pos);
+	rc = generic_file_read_iter(iocb, to);
 	/*
 	 * Even though this is a async interface, we need to wait
 	 * for IO to finish to update atime
@@ -352,8 +351,8 @@ const struct file_operations ecryptfs_dir_fops = {
 
 const struct file_operations ecryptfs_main_fops = {
 	.llseek = generic_file_llseek,
-	.read = do_sync_read,
-	.aio_read = ecryptfs_read_update_atime,
+	.read = new_sync_read,
+	.read_iter = ecryptfs_read_update_atime,
 	.write = do_sync_write,
 	.aio_write = generic_file_aio_write,
 	.iterate = ecryptfs_readdir,