1eda14cbcSMatt Macy /* 2eda14cbcSMatt Macy * CDDL HEADER START 3eda14cbcSMatt Macy * 4eda14cbcSMatt Macy * The contents of this file are subject to the terms of the 5eda14cbcSMatt Macy * Common Development and Distribution License (the "License"). 6eda14cbcSMatt Macy * You may not use this file except in compliance with the License. 7eda14cbcSMatt Macy * 8eda14cbcSMatt Macy * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*271171e0SMartin Matuska * or https://opensource.org/licenses/CDDL-1.0. 10eda14cbcSMatt Macy * See the License for the specific language governing permissions 11eda14cbcSMatt Macy * and limitations under the License. 12eda14cbcSMatt Macy * 13eda14cbcSMatt Macy * When distributing Covered Code, include this CDDL HEADER in each 14eda14cbcSMatt Macy * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15eda14cbcSMatt Macy * If applicable, add the following below this CDDL HEADER, with the 16eda14cbcSMatt Macy * fields enclosed by brackets "[]" replaced with your own identifying 17eda14cbcSMatt Macy * information: Portions Copyright [yyyy] [name of copyright owner] 18eda14cbcSMatt Macy * 19eda14cbcSMatt Macy * CDDL HEADER END 20eda14cbcSMatt Macy */ 21eda14cbcSMatt Macy 22eda14cbcSMatt Macy /* 23eda14cbcSMatt Macy * Copyright (C) 2018 Lawrence Livermore National Security, LLC. 24eda14cbcSMatt Macy */ 25eda14cbcSMatt Macy 26eda14cbcSMatt Macy #ifndef _ZFS_COMPILER_COMPAT_H 27eda14cbcSMatt Macy #define _ZFS_COMPILER_COMPAT_H 28eda14cbcSMatt Macy 29eda14cbcSMatt Macy #include <linux/compiler.h> 30eda14cbcSMatt Macy 31c03c5b1cSMartin Matuska #if !defined(zfs_fallthrough) 3253b70c86SMartin Matuska #if defined(HAVE_IMPLICIT_FALLTHROUGH) 33c03c5b1cSMartin Matuska #define zfs_fallthrough __attribute__((__fallthrough__)) 3453b70c86SMartin Matuska #else 35c03c5b1cSMartin Matuska #define zfs_fallthrough ((void)0) 3653b70c86SMartin Matuska #endif 3753b70c86SMartin Matuska #endif 3853b70c86SMartin Matuska 39eda14cbcSMatt Macy #if !defined(READ_ONCE) 40eda14cbcSMatt Macy #define READ_ONCE(x) ACCESS_ONCE(x) 41eda14cbcSMatt Macy #endif 42eda14cbcSMatt Macy 43eda14cbcSMatt Macy #endif /* _ZFS_COMPILER_COMPAT_H */ 44