linux-kernel - [PATCH tip/core/rcu] rcu: mark init-time-only rcu_bootup_announce() as _

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Date:	Wed, 11 Nov 2009 11:28:06 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, dvhltc@...ibm.com, niv@...ibm.com,
	tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
	Valdis.Kletnieks@...edu, dhowells@...hat.com
Subject: [PATCH tip/core/rcu] rcu: mark init-time-only
	rcu_bootup_announce() as __init

Because rcu_bootup_announce() is used only at boot time, mark it as
__init, presumably so that its memory can be reclaimed.

Suggested-by: Joe Perches <joe@...ches.com>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 kernel/rcutree_plugin.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index b7dc0c2..a1cf16d 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -33,7 +33,7 @@ DEFINE_PER_CPU(struct rcu_data, rcu_preempt_data);
 /*
  * Tell them what RCU they are running.
  */
-static void rcu_bootup_announce(void)
+static void __init rcu_bootup_announce(void)
 {
 	printk(KERN_INFO
 	       "Experimental preemptable hierarchical RCU implementation.\n");
@@ -475,7 +475,7 @@ void exit_rcu(void)
 /*
  * Tell them what RCU they are running.
  */
-static void rcu_bootup_announce(void)
+static void __init rcu_bootup_announce(void)
 {
 	printk(KERN_INFO "Hierarchical RCU implementation.\n");
 }
-- 
1.5.2.5

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