1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_SCHED_RCUPDATE_WAIT_H
3#define _LINUX_SCHED_RCUPDATE_WAIT_H
4
5/*
6 * RCU synchronization types and methods:
7 */
8
9#include <linux/rcupdate.h>
10#include <linux/completion.h>
11
12/*
13 * Structure allowing asynchronous waiting on RCU.
14 */
15struct rcu_synchronize {
16 struct rcu_head head;
17 struct completion completion;
18};
19void wakeme_after_rcu(struct rcu_head *head);
20
21void __wait_rcu_gp(bool checktiny, int n, call_rcu_func_t *crcu_array,
22 struct rcu_synchronize *rs_array);
23
24#define _wait_rcu_gp(checktiny, ...) \
25do { \
26 call_rcu_func_t __crcu_array[] = { __VA_ARGS__ }; \
27 struct rcu_synchronize __rs_array[ARRAY_SIZE(__crcu_array)]; \
28 __wait_rcu_gp(checktiny, ARRAY_SIZE(__crcu_array), \
29 __crcu_array, __rs_array); \
30} while (0)
31
32#define wait_rcu_gp(...) _wait_rcu_gp(false, __VA_ARGS__)
33
34#endif /* _LINUX_SCHED_RCUPDATE_WAIT_H */
35