srcu.h revision 328653
1292538Shselasky/*- 2328653Shselasky * Copyright (c) 2015-2017 Mellanox Technologies, Ltd. 3292538Shselasky * All rights reserved. 4292538Shselasky * 5292538Shselasky * Redistribution and use in source and binary forms, with or without 6292538Shselasky * modification, are permitted provided that the following conditions 7292538Shselasky * are met: 8292538Shselasky * 1. Redistributions of source code must retain the above copyright 9292538Shselasky * notice unmodified, this list of conditions, and the following 10292538Shselasky * disclaimer. 11292538Shselasky * 2. Redistributions in binary form must reproduce the above copyright 12292538Shselasky * notice, this list of conditions and the following disclaimer in the 13292538Shselasky * documentation and/or other materials provided with the distribution. 14292538Shselasky * 15292538Shselasky * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16292538Shselasky * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17292538Shselasky * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18292538Shselasky * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19292538Shselasky * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20292538Shselasky * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21292538Shselasky * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22292538Shselasky * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23292538Shselasky * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24292538Shselasky * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25292538Shselasky * 26292538Shselasky * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/linux/srcu.h 328653 2018-02-01 13:01:44Z hselasky $ 27292538Shselasky */ 28328653Shselasky 29292538Shselasky#ifndef _LINUX_SRCU_H_ 30292538Shselasky#define _LINUX_SRCU_H_ 31292538Shselasky 32292538Shselaskystruct srcu_struct { 33292538Shselasky}; 34292538Shselasky 35328653Shselasky#define srcu_dereference(ptr,srcu) ((__typeof(*(ptr)) *)(ptr)) 36292538Shselasky 37328653Shselasky/* prototypes */ 38292538Shselasky 39328653Shselaskyextern int srcu_read_lock(struct srcu_struct *); 40328653Shselaskyextern void srcu_read_unlock(struct srcu_struct *, int index); 41328653Shselaskyextern void synchronize_srcu(struct srcu_struct *); 42328653Shselaskyextern void srcu_barrier(struct srcu_struct *); 43328653Shselaskyextern int init_srcu_struct(struct srcu_struct *); 44328653Shselaskyextern void cleanup_srcu_struct(struct srcu_struct *); 45292538Shselasky 46292538Shselasky#endif /* _LINUX_SRCU_H_ */ 47