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Commit 792363d2 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

x86: Don't copy per_cpu cpuinfo for BSP two times 



smp_store_cpu_info(0) will do that.

Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
LKML-Reference: <4D3A16F2.5090902@kernel.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent b3d7336d

arch/x86/kernel/smpboot.c

+3 −3
Original line number Diff line number Diff line
@@ -1071,13 +1071,13 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus) 


	preempt_disable();

	smp_cpu_index_default();

	memcpy(__this_cpu_ptr(&cpu_info), &boot_cpu_data, sizeof(cpu_info));

	cpumask_copy(cpu_callin_mask, cpumask_of(0));

	mb();



	/*

	 * Setup boot CPU information

	 */

	smp_store_cpu_info(0); /* Final full version of the data */

	cpumask_copy(cpu_callin_mask, cpumask_of(0));

	mb();

#ifdef CONFIG_X86_32

	boot_cpu_logical_apicid = logical_smp_processor_id();

#endif