linux-kernel - [PATCH RFC tip/core/rcu 7/7] rcu: Move early boot callback tests earlier

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Message-Id: <1421834900-23987-7-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Wed, 21 Jan 2015 02:08:20 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, laijs@...fujitsu.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,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH RFC tip/core/rcu 7/7] rcu: Move early boot callback tests earlier

From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>

Because callbacks can now be posted quite early in boot, move the
early boot callback tests to precede RCU initialization.

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 kernel/rcu/tree.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index c5241cdd4daf..21f3d5007d77 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3920,6 +3920,8 @@ void __init rcu_init(void)
 {
 	int cpu;
 
+	rcu_early_boot_tests();
+
 	rcu_bootup_announce();
 	rcu_init_geometry();
 	rcu_init_one(&rcu_bh_state, &rcu_bh_data);
@@ -3936,8 +3938,6 @@ void __init rcu_init(void)
 	pm_notifier(rcu_pm_notify, 0);
 	for_each_online_cpu(cpu)
 		rcu_cpu_notify(NULL, CPU_UP_PREPARE, (void *)(long)cpu);
-
-	rcu_early_boot_tests();
 }
 
 #include "tree_plugin.h"
-- 
1.8.1.5

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