rcu: Remove rcu_preempt_process_callbacks()

With the removal of CONFIG_TINY_PREEMPT_RCU, rcu_preempt_process_callbacks()
is now an empty function.  This commit therefore eliminates it by
inlining it.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

2 files changed, 0 insertions, 9 deletions

diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index 6f5a2a6cc63f..7fc2339b0859 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -314,7 +314,6 @@ static void rcu_process_callbacks(struct softirq_action *unused)
 {
         __rcu_process_callbacks(&rcu_sched_ctrlblk);
         __rcu_process_callbacks(&rcu_bh_ctrlblk);
-        rcu_preempt_process_callbacks();
 }
 
 /*
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index 8b835b98114c..bfe992407803 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -102,14 +102,6 @@ static void check_cpu_stalls(void)
         RCU_TRACE(check_cpu_stall_preempt());
 }
 
-/*
- * Because preemptible RCU does not exist, it never has any callbacks
- * to process.
- */
-static void rcu_preempt_process_callbacks(void)
-{
-}
-
 /* Hold off callback invocation until early_initcall() time. */
 static int rcu_scheduler_fully_active __read_mostly;