datapath: Remove redundant synchronize_rcu() call.

There is no benefit to synchronizing twice, and it might cost us a lot of
time.

diff --git a/datapath/datapath.c b/datapath/datapath.c
index fc73cac..6df0843 100644 (file)
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -284,7 +284,6 @@ static void do_destroy_dp(struct datapath *dp, struct list_head *dp_devs)
                dp_del_port(p, dp_devs);
 
        rcu_assign_pointer(dps[dp->dp_idx], NULL);
-       synchronize_rcu();
 
        /* Wait until no longer in use, then destroy it. */
        synchronize_rcu();