rcu: Remove "cpu" argument to rcu_pending()

Because rcu_pending()'s argument is guaranteed to always be the current
CPU, drop the argument and replace per_cpu_ptr() with this_cpu_ptr().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 3107811..0670ba3 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -325,7 +325,7 @@ static void force_qs_rnp(struct rcu_state *rsp,
                                  unsigned long *maxj),
                         bool *isidle, unsigned long *maxj);
 static void force_quiescent_state(struct rcu_state *rsp);
-static int rcu_pending(int cpu);
+static int rcu_pending(void);
 
 /*
  * Return the number of RCU-sched batches processed thus far for debug & stats.
@@ -2421,7 +2421,7 @@ void rcu_check_callbacks(int user)
                rcu_bh_qs();
        }
        rcu_preempt_check_callbacks(smp_processor_id());
-       if (rcu_pending(smp_processor_id()))
+       if (rcu_pending())
                invoke_rcu_core();
        if (user)
                rcu_note_voluntary_context_switch(current);
@@ -3144,12 +3144,12 @@ static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp)
  * by the current CPU, returning 1 if so.  This function is part of the
  * RCU implementation; it is -not- an exported member of the RCU API.
  */
-static int rcu_pending(int cpu)
+static int rcu_pending(void)
 {
        struct rcu_state *rsp;
 
        for_each_rcu_flavor(rsp)
-               if (__rcu_pending(rsp, per_cpu_ptr(rsp->rda, cpu)))
+               if (__rcu_pending(rsp, this_cpu_ptr(rsp->rda)))
                        return 1;
        return 0;
 }