From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 19 Mar 2008 17:25:39 +0000 (-0300)
Subject: x86: don't initialize sibling and core maps during preparation
X-Git-Tag: v2.6.26-rc1~1154^2~357
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e7f8b14e028f7a2f9e5c83c17164aeeeb9c61f17;p=linux-2.6

x86: don't initialize sibling and core maps during preparation

it is redundant, since it is already done by set_cpu_sibling_map()

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index a35055361b..5cae17f3eb 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -855,18 +855,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 			++kicked;
 	}
 
-	/*
-	 * construct cpu_sibling_map, so that we can tell sibling CPUs
-	 * efficiently.
-	 */
-	for_each_possible_cpu(cpu) {
-		cpus_clear(per_cpu(cpu_sibling_map, cpu));
-		cpus_clear(per_cpu(cpu_core_map, cpu));
-	}
-
-	cpu_set(0, per_cpu(cpu_sibling_map, 0));
-	cpu_set(0, per_cpu(cpu_core_map, 0));
-
 	smpboot_setup_io_apic();
 
 	setup_boot_clock();