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/*-
* Copyright (c) 2015-2020 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_SRCU_H_
#define _LINUX_SRCU_H_
#include <linux/compiler.h>
struct srcu_struct {
};
#define srcu_dereference(p, srcu) \
((__typeof(*(p)) *)READ_ONCE(p))
#define DEFINE_STATIC_SRCU(name) \
static struct srcu_struct name
/* prototypes */
extern int srcu_read_lock(struct srcu_struct *);
extern void srcu_read_unlock(struct srcu_struct *, int index);
extern void synchronize_srcu(struct srcu_struct *);
extern void srcu_barrier(struct srcu_struct *);
extern int init_srcu_struct(struct srcu_struct *);
extern void cleanup_srcu_struct(struct srcu_struct *);
#define synchronize_srcu_expedited(srcu) do { \
synchronize_srcu(srcu); \
} while (0)
#endif /* _LINUX_SRCU_H_ */
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