linux-kernel - [PATCH v3 tip/core/rcu 17/34] rcu-tasks: Move #ifdef into tasks.h

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Date:   Fri, 27 Mar 2020 15:24:39 -0700
From:   paulmck@...nel.org
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH v3 tip/core/rcu 17/34] rcu-tasks: Move #ifdef into tasks.h

From: "Paul E. McKenney" <paulmck@...nel.org>

This commit pushes the #ifdef CONFIG_TASKS_RCU_GENERIC from
kernel/rcu/update.c to kernel/rcu/tasks.h in order to improve
readability as more APIs are added.

Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 kernel/rcu/tasks.h  | 5 +++++
 kernel/rcu/update.c | 4 ----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h
index fc7f116..b52a640 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -5,6 +5,7 @@
  * Copyright (C) 2020 Paul E. McKenney
  */
 
+#ifdef CONFIG_TASKS_RCU_GENERIC
 
 ////////////////////////////////////////////////////////////////////////
 //
@@ -980,3 +981,7 @@ core_initcall(rcu_spawn_tasks_trace_kthread);
 #else /* #ifdef CONFIG_TASKS_TRACE_RCU */
 void exit_tasks_rcu_finish_trace(struct task_struct *t) { }
 #endif /* #else #ifdef CONFIG_TASKS_TRACE_RCU */
+
+#else /* #ifdef CONFIG_TASKS_RCU_GENERIC */
+static inline void rcu_tasks_bootup_oddness(void) {}
+#endif /* #else #ifdef CONFIG_TASKS_RCU_GENERIC */
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 16058a5..0fb2a9e 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -559,11 +559,7 @@ late_initcall(rcu_verify_early_boot_tests);
 void rcu_early_boot_tests(void) {}
 #endif /* CONFIG_PROVE_RCU */
 
-#ifdef CONFIG_TASKS_RCU_GENERIC
 #include "tasks.h"
-#else /* #ifdef CONFIG_TASKS_RCU_GENERIC */
-static inline void rcu_tasks_bootup_oddness(void) {}
-#endif /* #else #ifdef CONFIG_TASKS_RCU_GENERIC */
 
 #ifndef CONFIG_TINY_RCU
 
-- 
2.9.5