linux-kernel - [PATCH] x86, smpboot: Fix cores per node printing on boot

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Date:	Tue, 1 Jun 2010 21:04:55 +0200
From:	Borislav Petkov <borislav.petkov@....com>
To:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
CC:	x86 <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86, smpboot: Fix cores per node printing on boot

Percpu initialization happens now after booting the cores on the machine
and this causes them all to be displayed as belonging to node 0:

Jun  8 05:57:21 kepek kernel: [    0.106999] Booting Node   0, Processors  #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23 Ok.

Use early_cpu_to_node() to get the correct node of each core instead.

Signed-off-by: Borislav Petkov <borislav.petkov@....com>
---
 arch/x86/kernel/smpboot.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 37462f1..c4f33b2 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -686,7 +686,7 @@ static void __cpuinit do_fork_idle(struct work_struct *work)
 static void __cpuinit announce_cpu(int cpu, int apicid)
 {
 	static int current_node = -1;
-	int node = cpu_to_node(cpu);
+	int node = early_cpu_to_node(cpu);
 
 	if (system_state == SYSTEM_BOOTING) {
 		if (node != current_node) {
-- 
1.6.4.4


-- 
Regards/Gruss,
Boris.

Operating Systems Research Center
Advanced Micro Devices, Inc.

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