/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * This program is free software and is provided to you under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation, and any use by you of this program is subject to the terms
 * of such GNU licence.
 *
 * A copy of the licence is included with the program, and can also be obtained
 * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 */

#include <linux/version.h>

#if (KERNEL_VERSION(4, 20, 0) > LINUX_VERSION_CODE)

#include <linux/mm.h>

static inline vm_fault_t vmf_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr,
					     unsigned long pfn, pgprot_t pgprot)
{
	int err = vm_insert_pfn_prot(vma, addr, pfn, pgprot);

	if (unlikely(err == -ENOMEM))
		return VM_FAULT_OOM;
	if (unlikely(err < 0 && err != -EBUSY))
		return VM_FAULT_SIGBUS;

	return VM_FAULT_NOPAGE;
}
#endif