[PATCH tip/core/rcu 2/4] rcu: enable synchronize_sched_expedited() fastpath

[Paul E. McKenney]

From: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

This patch adds a counter increment to enable tasks to actually take
the synchronize_sched_expedited() function's fastpath.

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
 kernel/sched.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 76c0e96..e69fee4 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -10865,6 +10865,7 @@ void synchronize_sched_expedited(void)
 		spin_unlock_irqrestore(&rq->lock, flags);
 	}
 	rcu_expedited_state = RCU_EXPEDITED_STATE_IDLE;
+	synchronize_sched_expedited_count++;
 	mutex_unlock(&rcu_sched_expedited_mutex);
 	put_online_cpus();
 	if (need_full_sync)
-- 
1.5.2.5

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