ecryptfs: don't open-code kernel_read()

			struct inode *ecryptfs_inode)

{

	struct file *lower_file;

	mm_segment_t fs_save;

	ssize_t rc;

	lower_file = ecryptfs_inode_to_private(ecryptfs_inode)->lower_file;

	if (!lower_file)

		return -EIO;

	fs_save = get_fs();

	set_fs(get_ds());

	rc = vfs_read(lower_file, data, size, &offset);

	set_fs(fs_save);

	return rc;

	return kernel_read(lower_file, offset, data, size);

}

/**