rcu: Remove "cpu" argument to rcu_cleanup_after_idle()

The "cpu" argument to rcu_cleanup_after_idle() is always the current
CPU, so drop it.  This moves the smp_processor_id() from the caller to
rcu_cleanup_after_idle(), saving argument-passing overhead.  Again,
the anticipated cross-CPU uses of these functions has been replaced
by NO_HZ_FULL.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 8251938fb4ae..fa76fd3c219c 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -661,7 +661,7 @@ static void rcu_eqs_exit_common(long long oldval, int user)
         /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
         smp_mb__after_atomic();  /* See above. */
         WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
-        rcu_cleanup_after_idle(smp_processor_id());
+        rcu_cleanup_after_idle();
         trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
         if (!user && !is_idle_task(current)) {
                 struct task_struct *idle __maybe_unused =