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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (C) 2018 Lawrence Livermore National Security, LLC.
*/
#ifndef _ZFS_COMPILER_COMPAT_H
#define _ZFS_COMPILER_COMPAT_H
#include <linux/compiler.h>
#if !defined(fallthrough)
#if defined(HAVE_IMPLICIT_FALLTHROUGH)
#define fallthrough __attribute__((__fallthrough__))
#else
#define fallthrough ((void)0)
#endif
#endif
#if !defined(READ_ONCE)
#define READ_ONCE(x) ACCESS_ONCE(x)
#endif
#endif /* _ZFS_COMPILER_COMPAT_H */