mmap.c

/*
 * Copyright (c) 1998-2020 Erez Zadok
 * Copyright (c) 2009	   Shrikar Archak
 * Copyright (c) 2003-2020 Stony Brook University
 * Copyright (c) 2003-2020 The Research Foundation of SUNY
 * Copyright (c) 2020-2021 Barnim Dzwillo @ Strato AG
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include "wrapfs.h"

#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
static ssize_t wrapfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
#else
static ssize_t wrapfs_direct_IO(int rw, struct kiocb *iocb,
				const struct iovec *iov, loff_t offset,
				unsigned long nr_segs)
#endif
{
	/*
	 * This function should never be called directly.  We need it
	 * to exist, to get past a check in open_check_o_direct(),
	 * which is called from do_last().
	 */
	return -EINVAL;
}

const struct address_space_operations wrapfs_aops = {
	.direct_IO = wrapfs_direct_IO,
};