From: "Joel Fernandes (Google)" <joel@xxxxxxxxxxxxxxxxx>
call_rcu() changes to save power will slow down rcu sync. Use the
call_rcu_flush() API instead which reverts to the old behavior.
Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
kernel/rcu/sync.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/sync.c b/kernel/rcu/sync.c
index 5cefc702158fe..bdce3b5d7f714 100644
--- a/kernel/rcu/sync.c
+++ b/kernel/rcu/sync.c
@@ -44,7 +44,7 @@ static void rcu_sync_func(struct rcu_head *rhp);
static void rcu_sync_call(struct rcu_sync *rsp)
{
- call_rcu(&rsp->cb_head, rcu_sync_func);
+ call_rcu_flush(&rsp->cb_head, rcu_sync_func);
}
/**
--
2.31.1.189.g2e36527f23
