1eda14cbcSMatt Macy /* 2eda14cbcSMatt Macy * Copyright (c) 2010 Isilon Systems, Inc. 3eda14cbcSMatt Macy * Copyright (c) 2010 iXsystems, Inc. 4eda14cbcSMatt Macy * Copyright (c) 2010 Panasas, Inc. 5eda14cbcSMatt Macy * Copyright (c) 2013-2016 Mellanox Technologies, Ltd. 6eda14cbcSMatt Macy * Copyright (c) 2015 François Tigeot 7eda14cbcSMatt Macy * All rights reserved. 8eda14cbcSMatt Macy * 9eda14cbcSMatt Macy * Redistribution and use in source and binary forms, with or without 10eda14cbcSMatt Macy * modification, are permitted provided that the following conditions 11eda14cbcSMatt Macy * are met: 12eda14cbcSMatt Macy * 1. Redistributions of source code must retain the above copyright 13eda14cbcSMatt Macy * notice unmodified, this list of conditions, and the following 14eda14cbcSMatt Macy * disclaimer. 15eda14cbcSMatt Macy * 2. Redistributions in binary form must reproduce the above copyright 16eda14cbcSMatt Macy * notice, this list of conditions and the following disclaimer in the 17eda14cbcSMatt Macy * documentation and/or other materials provided with the distribution. 18eda14cbcSMatt Macy * 19eda14cbcSMatt Macy * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20eda14cbcSMatt Macy * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21eda14cbcSMatt Macy * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22eda14cbcSMatt Macy * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23eda14cbcSMatt Macy * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24eda14cbcSMatt Macy * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25eda14cbcSMatt Macy * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26eda14cbcSMatt Macy * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27eda14cbcSMatt Macy * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28eda14cbcSMatt Macy * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29eda14cbcSMatt Macy * 30eda14cbcSMatt Macy * $FreeBSD$ 31eda14cbcSMatt Macy */ 32eda14cbcSMatt Macy #ifndef _LINUX_COMPILER_H_ 33eda14cbcSMatt Macy #define _LINUX_COMPILER_H_ 34eda14cbcSMatt Macy 35eda14cbcSMatt Macy #include <sys/cdefs.h> 36eda14cbcSMatt Macy 37eda14cbcSMatt Macy #define __user 38eda14cbcSMatt Macy #define __kernel 39eda14cbcSMatt Macy #define __safe 40eda14cbcSMatt Macy #define __force 41eda14cbcSMatt Macy #define __nocast 42eda14cbcSMatt Macy #define __iomem 43eda14cbcSMatt Macy #define __chk_user_ptr(x) ((void)0) 44eda14cbcSMatt Macy #define __chk_io_ptr(x) ((void)0) 45eda14cbcSMatt Macy #define __builtin_warning(x, y...) (1) 46eda14cbcSMatt Macy #define __acquires(x) 47eda14cbcSMatt Macy #define __releases(x) 48eda14cbcSMatt Macy #define __acquire(x) do { } while (0) 49eda14cbcSMatt Macy #define __release(x) do { } while (0) 50eda14cbcSMatt Macy #define __cond_lock(x, c) (c) 51eda14cbcSMatt Macy #define __bitwise 52eda14cbcSMatt Macy #define __devinitdata 53eda14cbcSMatt Macy #define __deprecated 54eda14cbcSMatt Macy #define __init 55eda14cbcSMatt Macy #define __initconst 56eda14cbcSMatt Macy #define __devinit 57eda14cbcSMatt Macy #define __devexit 58eda14cbcSMatt Macy #define __exit 59eda14cbcSMatt Macy #define __rcu 60eda14cbcSMatt Macy #define __percpu 61eda14cbcSMatt Macy #define __weak __weak_symbol 62eda14cbcSMatt Macy #define __malloc 63eda14cbcSMatt Macy #define ___stringify(...) #__VA_ARGS__ 64eda14cbcSMatt Macy #define __stringify(...) ___stringify(__VA_ARGS__) 65eda14cbcSMatt Macy #define __attribute_const__ __attribute__((__const__)) 66eda14cbcSMatt Macy #undef __always_inline 67eda14cbcSMatt Macy #define __always_inline inline 68eda14cbcSMatt Macy #define noinline __noinline 69eda14cbcSMatt Macy #define ____cacheline_aligned __aligned(CACHE_LINE_SIZE) 70c03c5b1cSMartin Matuska #define zfs_fallthrough __attribute__((__fallthrough__)) 71eda14cbcSMatt Macy 722fec3ae8SWarner Losh #if !defined(_KERNEL) && !defined(_STANDALONE) 73eda14cbcSMatt Macy #define likely(x) __builtin_expect(!!(x), 1) 74eda14cbcSMatt Macy #define unlikely(x) __builtin_expect(!!(x), 0) 75eda14cbcSMatt Macy #endif 76eda14cbcSMatt Macy #define typeof(x) __typeof(x) 77eda14cbcSMatt Macy 78eda14cbcSMatt Macy #define uninitialized_var(x) x = x 79eda14cbcSMatt Macy #define __maybe_unused __unused 80eda14cbcSMatt Macy #define __always_unused __unused 81eda14cbcSMatt Macy #define __must_check __result_use_check 82eda14cbcSMatt Macy 83eda14cbcSMatt Macy #define __printf(a, b) __printflike(a, b) 84eda14cbcSMatt Macy 85eda14cbcSMatt Macy #define barrier() __asm__ __volatile__("": : :"memory") 86eda14cbcSMatt Macy #define ___PASTE(a, b) a##b 87eda14cbcSMatt Macy #define __PASTE(a, b) ___PASTE(a, b) 88eda14cbcSMatt Macy 89eda14cbcSMatt Macy #define ACCESS_ONCE(x) (*(volatile __typeof(x) *)&(x)) 90eda14cbcSMatt Macy 91eda14cbcSMatt Macy #define WRITE_ONCE(x, v) do { \ 92eda14cbcSMatt Macy barrier(); \ 93eda14cbcSMatt Macy ACCESS_ONCE(x) = (v); \ 94eda14cbcSMatt Macy barrier(); \ 95eda14cbcSMatt Macy } while (0) 96eda14cbcSMatt Macy 97eda14cbcSMatt Macy #define lockless_dereference(p) READ_ONCE(p) 98eda14cbcSMatt Macy 99eda14cbcSMatt Macy #define _AT(T, X) ((T)(X)) 100eda14cbcSMatt Macy 101eda14cbcSMatt Macy #endif /* _LINUX_COMPILER_H_ */ 102