linux-kernel - [PATCH 1/3] cpu-hotadd-patch-liujiang

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Date:	Wed, 17 Jun 2015 11:37:56 +0800
From:	gongzg <gongzhaogang@...pur.com>
To:	<linux-kernel@...r.kernel.org>
CC:	songxiumiao <songxiumiao@...pur.com>
Subject: [PATCH 1/3] cpu-hotadd-patch-liujiang

From: songxiumiao <songxiumiao@...pur.com>

---
 arch/x86/kernel/acpi/boot.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index dbe76a1..b8f93b3 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -733,6 +733,10 @@ static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 
 	nid = acpi_get_node(handle);
 	if (nid != -1) {
+		if (try_online_node(nid)) {
+			pr_warn("failed to online node%d for CPU%d, use node%d instead.\n",nid, cpu, first_node(node_online_map));
+			nid = first_node(node_online_map);
+		}
 		set_apicid_to_node(physid, nid);
 		numa_set_node(cpu, nid);
 	}
-- 
1.7.1

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