linux-kernel - [PATCH 01/26] x86-64, NUMA: Make dummy node initialization path similar to non-dummy ones

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Message-Id: <1297530663-26234-2-git-send-email-tj@kernel.org>
Date:	Sat, 12 Feb 2011 18:10:38 +0100
From:	Tejun Heo <tj@...nel.org>
To:	linux-kernel@...r.kernel.org, x86@...nel.org, yinghai@...nel.org,
	brgerst@...il.com, gorcunov@...il.com, shaohui.zheng@...el.com,
	rientjes@...gle.com, mingo@...e.hu, hpa@...ux.intel.com
Cc:	Tejun Heo <tj@...nel.org>
Subject: [PATCH 01/26] x86-64, NUMA: Make dummy node initialization path similar to non-dummy ones

Dummy node initialization in initmem_init() didn't initialize apicid
to node mapping and set cpu to node mapping directly by caling
numa_set_node(), which is different from non-dummy init paths.

Update it such that they behave similarly.  Initialize apicid to node
mapping and call numa_init_array().  The actual cpu to node mapping is
handled by init_cpu_to_node() later.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Cyrill Gorcunov <gorcunov@...il.com>
Cc: Shaohui Zheng <shaohui.zheng@...el.com>
Cc: David Rientjes <rientjes@...gle.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: H. Peter Anvin <hpa@...ux.intel.com>
---
 arch/x86/mm/numa_64.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index f548fbf..ea5dd48 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -623,10 +623,11 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn,
 	memnodemap[0] = 0;
 	node_set_online(0);
 	node_set(0, node_possible_map);
-	for (i = 0; i < nr_cpu_ids; i++)
-		numa_set_node(i, 0);
+	for (i = 0; i < MAX_LOCAL_APIC; i++)
+		set_apicid_to_node(i, NUMA_NO_NODE);
 	memblock_x86_register_active_regions(0, start_pfn, last_pfn);
 	setup_node_bootmem(0, start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT);
+	numa_init_array();
 }
 
 unsigned long __init numa_free_all_bootmem(void)
-- 
1.7.1

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