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rcu: Add synchronous grace-period waiting for RCU-tasks

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It turns out to be easier to add the synchronous grace-period waiting
functions to RCU-tasks than to work around their absense in rcutorture,
so this commit adds them.  The key point is that the existence of
call_rcu_tasks() means that rcutorture needs an rcu_barrier_tasks().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2014-07-01 12:22:23 -07:00
parent bde6c3aa99
commit 53c6d4edf8
2 changed files with 57 additions and 0 deletions
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2
include/linux/rcupdate.h
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@ -216,6 +216,8 @@ void synchronize_sched(void);
* memory ordering guarantees.
*/
void call_rcu_tasks(struct rcu_head *head, void (*func)(struct rcu_head *head));
void synchronize_rcu_tasks(void);
void rcu_barrier_tasks(void);
#ifdef CONFIG_PREEMPT_RCU