1/* 2 - 3 * Copyright (c) 2010 Isilon Systems, Inc. 4 * Copyright (c) 2010 iX Systems, Inc. 5 * Copyright (c) 2010 Panasas, Inc. 6 * Copyright (c) 2013-2015 Mellanox Technologies, Ltd. 7 * Copyright (c) 2015 Fran��ois Tigeot 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice unmodified, this list of conditions, and the following 15 * disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31 */ 32#ifndef _LINUX_COMPILER_H_ 33#define _LINUX_COMPILER_H_ 34/* 35 #include <sys/cdefs.h> 36 37 #define __user 38 #define __kernel 39 #define __safe 40 */ 41#define __force 42/* 43 #define __nocast 44 #define __iomem 45 #define __chk_user_ptr(x) 0 46 #define __chk_io_ptr(x) 0 47 #define __builtin_warning(x, y...) (1) 48 #define __acquires(x) 49 #define __releases(x) 50 #define __acquire(x) 0 51 #define __release(x) 0 52 #define __cond_lock(x,c) (c) 53 #define __bitwise 54 #define __devinitdata 55 #define __init 56 #define __devinit 57 #define __devexit 58 #define __exit 59 #define __stringify(x) #x 60 #define __attribute_const__ __attribute__((__const__)) 61 */ 62#undef __always_inline 63#define __always_inline inline 64 65#define likely(x) __builtin_expect(!!(x), 1) 66#define unlikely(x) __builtin_expect(!!(x), 0) 67#define typeof(x) __typeof(x) 68 69#define uninitialized_var(x) x = x 70/* 71 #define __read_mostly __attribute__((__section__(".data.read_mostly"))) 72 #define __always_unused __unused 73 #define __must_check __result_use_check 74 75 #define __printf(a,b) __printflike(a,b) 76 77 #define barrier() __asm__ __volatile__("": : :"memory") 78 79 #define ACCESS_ONCE(x) (*(volatile __typeof(x) *)&(x)) 80 81 #define WRITE_ONCE(x,v) do { \ 82 barrier(); \ 83 ACCESS_ONCE(x) = (v); \ 84 barrier(); \ 85} while (0) 86 87 #define READ_ONCE(x) ({ \ 88 __typeof(x) __var; \ 89 barrier(); \ 90 __var = ACCESS_ONCE(x); \ 91 barrier(); \ 92 __var; \ 93}) 94 */ 95#endif /*_LINUX_COMPILER_H_ 96*/ 97