linux-kernel - [PATCH 09/16] x86: Implement cpu_to_logical_apicid() for bigsmp

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Message-Id: <1290871325-3055-10-git-send-email-tj@kernel.org>
Date:	Sat, 27 Nov 2010 16:21:58 +0100
From:	Tejun Heo <tj@...nel.org>
To:	linux-kernel@...r.kernel.org, mingo@...hat.com, tglx@...utronix.de,
	hpa@...or.com, x86@...nel.org, eric.dumazet@...il.com,
	yinghai@...nel.org, brgerst@...il.com, gorcunov@...il.com,
	penberg@...nel.org
Cc:	Tejun Heo <tj@...nel.org>
Subject: [PATCH 09/16] x86: Implement cpu_to_logical_apicid() for bigsmp_32

Signed-off-by: Tejun Heo <tj@...nel.org>
---
 arch/x86/kernel/apic/bigsmp_32.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index e4d426b..df83be7 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -47,11 +47,8 @@ static unsigned long bigsmp_check_apicid_present(int bit)
 
 static int bigsmp_cpu_to_logical_apicid(int cpu)
 {
-	/*
-	 * This is stub implementation which causes static percpu area
-	 * layout to ignore NUMA affinity.
-	 */
-	return BAD_APICID;
+	/* on bigsmp, logical apicid is the same as physical */
+	return early_per_cpu(x86_cpu_to_apicid, cpu);
 }
 
 static inline unsigned long calculate_ldr(int cpu)
-- 
1.7.1

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