rcu/sync: Use call_rcu_hurry() instead of call_rcu

call_rcu() changes to save power will slow down rcu sync. Use the
call_rcu_hurry() API instead which reverts to the old behavior.

[ paulmck: Apply s/call_rcu_flush/call_rcu_hurry/ feedback from Tejun Heo. ]

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/kernel/rcu/sync.c b/kernel/rcu/sync.c
index 5cefc702158fefe6c0d8e1d1dba054501cd89183..e550f97779b8dc82c950bcf92e0676339688c26e 100644 (file)
--- 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_hurry(&rsp->cb_head, rcu_sync_func);
 }
 
 /**