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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_SCHED_RCUPDATE_WAIT_H
#define _LINUX_SCHED_RCUPDATE_WAIT_H

/*
 * RCU synchronization types and methods:
 */

#include <linux/rcupdate.h>
#include <linux/completion.h>

/*
 * Structure allowing asynchronous waiting on RCU.
 */
struct rcu_synchronize {
	struct rcu_head head;
	struct completion completion;
};
void wakeme_after_rcu(struct rcu_head *head);

void __wait_rcu_gp(bool checktiny, int n, call_rcu_func_t *crcu_array,
		   struct rcu_synchronize *rs_array);

#define _wait_rcu_gp(checktiny, ...) \
do {									\
	call_rcu_func_t __crcu_array[] = { __VA_ARGS__ };		\
	struct rcu_synchronize __rs_array[ARRAY_SIZE(__crcu_array)];	\
	__wait_rcu_gp(checktiny, ARRAY_SIZE(__crcu_array),		\
			__crcu_array, __rs_array);			\
} while (0)

#define wait_rcu_gp(...) _wait_rcu_gp(false, __VA_ARGS__)

#endif /* _LINUX_SCHED_RCUPDATE_WAIT_H */