From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754274AbcHXHqk (ORCPT ); Wed, 24 Aug 2016 03:46:40 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:9261 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754209AbcHXHqi (ORCPT ); Wed, 24 Aug 2016 03:46:38 -0400 From: Zhen Lei To: Catalin Marinas , Will Deacon , linux-arm-kernel , linux-kernel , Rob Herring , "Frank Rowand" , devicetree CC: Zefan Li , Xinwei Hu , "Tianhong Ding" , Hanjun Guo , Zhen Lei Subject: [PATCH v7 12/14] arm64/numa: remove the limitation that cpu0 must bind to node0 Date: Wed, 24 Aug 2016 15:44:51 +0800 Message-ID: <1472024693-12912-13-git-send-email-thunder.leizhen@huawei.com> X-Mailer: git-send-email 1.9.5.msysgit.1 In-Reply-To: <1472024693-12912-1-git-send-email-thunder.leizhen@huawei.com> References: <1472024693-12912-1-git-send-email-thunder.leizhen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.177.23.164] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020202.57BD50DB.00E8,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 87b4777859987c68a7030ca30151f1a6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 1. Currently only cpu0 set on cpu_possible_mask and percpu areas have not been initialized. 2. No reason to limit cpu0 must belongs to node0. Signed-off-by: Zhen Lei --- arch/arm64/mm/numa.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c index 114180f..07a1978 100644 --- a/arch/arm64/mm/numa.c +++ b/arch/arm64/mm/numa.c @@ -94,7 +94,6 @@ void numa_clear_node(unsigned int cpu) */ static void __init setup_node_to_cpumask_map(void) { - unsigned int cpu; int node; /* setup nr_node_ids if not done yet */ @@ -107,9 +106,6 @@ static void __init setup_node_to_cpumask_map(void) cpumask_clear(node_to_cpumask_map[node]); } - for_each_possible_cpu(cpu) - set_cpu_numa_node(cpu, NUMA_NO_NODE); - /* cpumask_of_node() will now work */ pr_debug("Node to cpumask map for %d nodes\n", nr_node_ids); } @@ -119,13 +115,13 @@ static void __init setup_node_to_cpumask_map(void) */ void numa_store_cpu_info(unsigned int cpu) { - map_cpu_to_node(cpu, numa_off ? 0 : cpu_to_node_map[cpu]); + map_cpu_to_node(cpu, cpu_to_node_map[cpu]); } void __init early_map_cpu_to_node(unsigned int cpu, int nid) { /* fallback to node 0 */ - if (nid < 0 || nid >= MAX_NUMNODES) + if (nid < 0 || nid >= MAX_NUMNODES || numa_off) nid = 0; cpu_to_node_map[cpu] = nid; @@ -375,10 +371,6 @@ static int __init numa_init(int (*init_func)(void)) setup_node_to_cpumask_map(); - /* init boot processor */ - cpu_to_node_map[0] = 0; - map_cpu_to_node(0, 0); - return 0; } -- 2.5.0