linux-kernel - [Part2 PATCH v4 10/15] x86, numa: Move memory_add_physaddr_to_nid() to CONFIG

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Message-Id: <1371128619-8987-11-git-send-email-tangchen@cn.fujitsu.com>
Date:	Thu, 13 Jun 2013 21:03:34 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	tglx@...utronix.de, mingo@...e.hu, hpa@...or.com,
	akpm@...ux-foundation.org, tj@...nel.org, trenn@...e.de,
	yinghai@...nel.org, jiang.liu@...wei.com, wency@...fujitsu.com,
	laijs@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	mgorman@...e.de, minchan@...nel.org, mina86@...a86.com,
	gong.chen@...ux.intel.com, vasilis.liaskovitis@...fitbricks.com,
	lwoodman@...hat.com, riel@...hat.com, jweiner@...hat.com,
	prarit@...hat.com
Cc:	x86@...nel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: [Part2 PATCH v4 10/15] x86, numa: Move memory_add_physaddr_to_nid() to CONFIG_NUMA.

memory_add_physaddr_to_nid() is declared in include/linux/memory_hotplug.h,
protected by CONFIG_NUMA. And in x86, the definitions are protected by
CONFIG_MEMORY_HOTPLUG.

memory_add_physaddr_to_nid() uses numa_meminfo to find the physical address's
nid. It has nothing to do with memory hotplug. And also, it can be used by
alloc_low_pages() to obtain nid of the allocated memory.

So in x86, also use CONFIG_NUMA to protect it.

Signed-off-by: Tang Chen <tangchen@...fujitsu.com>
---
 arch/x86/mm/numa.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 1242190..2b5057f 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -1009,7 +1009,7 @@ EXPORT_SYMBOL(cpumask_of_node);
 
 #endif	/* !CONFIG_DEBUG_PER_CPU_MAPS */
 
-#ifdef CONFIG_MEMORY_HOTPLUG
+#ifdef CONFIG_NUMA
 int memory_add_physaddr_to_nid(u64 start)
 {
 	struct numa_meminfo *mi = &numa_meminfo;
-- 
1.7.1

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