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Message-id: <200801271827.17992.yinghai.lu@sun.com>
Date: Sun, 27 Jan 2008 18:27:17 -0800
From: Yinghai Lu <Yinghai.Lu@....COM>
To: Ingo Molnar <mingo@...e.hu>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86_64: not set boot cpu in cpu_present_map again
[PATCH] x86_64: not set boot cpu in cpu_present_map again
in init/main.c boot_cpu_init() already does that before setup_arch
Signed-off-by: Yinghai Lu <yinghai.lu@....com>
Index: linux-2.6/arch/x86/kernel/setup_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup_64.c
+++ linux-2.6/arch/x86/kernel/setup_64.c
@@ -446,12 +446,6 @@ void __init setup_arch(char **cmdline_p)
early_quirks();
- /*
- * set this early, so we dont allocate cpu0
- * if MADT list doesnt list BSP first
- * mpparse.c/MP_processor_info() allocates logical cpu numbers.
- */
- cpu_set(0, cpu_present_map);
#ifdef CONFIG_ACPI
/*
* Read APIC and some other early information from ACPI tables.
--
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