mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
![Paul E. McKenney](/assets/img/avatar_default.png)
Now that synchronize_rcu() waits for both RCU read-side critical sections and preempt-disabled regions of code, the sole caller of synchronize_rcu_mult() can be replaced by synchronize_rcu(). This patch makes this change and removes synchronize_rcu_mult(). Note that _wait_rcu_gp() still supports synchronize_rcu_mult(), and thus might be simplified in the future to take only take a single call_rcu() function rather than the current list of them. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
34 lines
897 B
C
34 lines
897 B
C
/* 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 */
|