rcu: Eliminate unused rcu_init_one() argument

Now that the rcu_state structure's ->rda field is compile-time initialized,
there is no need to pass the per-CPU rcu_data structure into rcu_init_one().
This commit therefore eliminates this now-unused parameter.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 93941d3..9a4c8c0 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -4351,8 +4351,7 @@ static void __init rcu_init_levelspread(int *levelspread, const int *levelcnt)
 /*
  * Helper function for rcu_init() that initializes one rcu_state structure.
  */
-static void __init rcu_init_one(struct rcu_state *rsp,
-               struct rcu_data __percpu *rda)
+static void __init rcu_init_one(struct rcu_state *rsp)
 {
        static const char * const buf[] = RCU_NODE_NAME_INIT;
        static const char * const fqs[] = RCU_FQS_NAME_INIT;
@@ -4545,8 +4544,8 @@ void __init rcu_init(void)
 
        rcu_bootup_announce();
        rcu_init_geometry();
-       rcu_init_one(&rcu_bh_state, &rcu_bh_data);
-       rcu_init_one(&rcu_sched_state, &rcu_sched_data);
+       rcu_init_one(&rcu_bh_state);
+       rcu_init_one(&rcu_sched_state);
        if (dump_tree)
                rcu_dump_rcu_node_tree(&rcu_sched_state);
        __rcu_init_preempt();

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index e6da888..fccef5d 100644 (file)
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -777,7 +777,7 @@ EXPORT_SYMBOL_GPL(rcu_barrier);
  */
 static void __init __rcu_init_preempt(void)
 {
-       rcu_init_one(rcu_state_p, rcu_data_p);
+       rcu_init_one(rcu_state_p);
 }
 
 /*