linux-kernel - [PATCH 2/4] acpi,memory-hotplug : rename remove_memory() to offline

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Message-ID: <506C0D45.3050909@jp.fujitsu.com>
Date:	Wed, 3 Oct 2012 19:02:45 +0900
From:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
To:	<x86@...nel.org>, <linux-mm@...ck.org>,
	<linux-kernel@...r.kernel.org>, <linux-acpi@...r.kernel.org>
CC:	<rientjes@...gle.com>, <liuj97@...il.com>, <len.brown@...el.com>,
	<cl@...ux.com>, <minchan.kim@...il.com>,
	<akpm@...ux-foundation.org>, <kosaki.motohiro@...fujitsu.com>,
	<wency@...fujitsu.com>
Subject: [PATCH 2/4] acpi,memory-hotplug : rename remove_memory() to offline_memory()

From: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>

add_memory() hot adds a physical memory. But remove_memory does not
hot remove a phsical memory. It only offlines memory. The name
confuse us.

So the patch renames remove_memory() to offline_memory(). We will
use rename_memory() for hot removing memory.

CC: David Rientjes <rientjes@...gle.com>
CC: Jiang Liu <liuj97@...il.com>
CC: Len Brown <len.brown@...el.com>
CC: Christoph Lameter <cl@...ux.com>
Cc: Minchan Kim <minchan.kim@...il.com>
CC: Andrew Morton <akpm@...ux-foundation.org>
CC: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> 
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Signed-off-by: Wen Congyang <wency@...fujitsu.com>
---
 drivers/acpi/acpi_memhotplug.c |    2 +-
 include/linux/memory_hotplug.h |    2 +-
 mm/memory_hotplug.c            |    6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

Index: linux-3.6/drivers/acpi/acpi_memhotplug.c
===================================================================
--- linux-3.6.orig/drivers/acpi/acpi_memhotplug.c	2012-10-03 18:17:29.291244669 +0900
+++ linux-3.6/drivers/acpi/acpi_memhotplug.c	2012-10-03 18:17:41.494247869 +0900
@@ -316,7 +316,7 @@ acpi_memory_remove_memory(struct acpi_me
 		if (!info->enabled)
 			return -EBUSY;
 
-		result = remove_memory(info->start_addr, info->length);
+		result = offline_memory(info->start_addr, info->length);
 		if (result)
 			return result;
 
Index: linux-3.6/include/linux/memory_hotplug.h
===================================================================
--- linux-3.6.orig/include/linux/memory_hotplug.h	2012-10-03 18:17:01.863247694 +0900
+++ linux-3.6/include/linux/memory_hotplug.h	2012-10-03 18:17:41.496247872 +0900
@@ -236,7 +236,7 @@ extern int add_memory(int nid, u64 start
 extern int arch_add_memory(int nid, u64 start, u64 size);
 extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
 extern int offline_memory_block(struct memory_block *mem);
-extern int remove_memory(u64 start, u64 size);
+extern int offline_memory(u64 start, u64 size);
 extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
 								int nr_pages);
 extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms);
Index: linux-3.6/mm/memory_hotplug.c
===================================================================
--- linux-3.6.orig/mm/memory_hotplug.c	2012-10-03 18:17:01.861247692 +0900
+++ linux-3.6/mm/memory_hotplug.c	2012-10-03 18:17:41.503247876 +0900
@@ -1003,7 +1003,7 @@ int offline_pages(unsigned long start_pf
 	return __offline_pages(start_pfn, start_pfn + nr_pages, 120 * HZ);
 }
 
-int remove_memory(u64 start, u64 size)
+int offline_memory(u64 start, u64 size)
 {
 	struct memory_block *mem = NULL;
 	struct mem_section *section;
@@ -1047,9 +1047,9 @@ int offline_pages(unsigned long start_pf
 {
 	return -EINVAL;
 }
-int remove_memory(u64 start, u64 size)
+int offline_memory(u64 start, u64 size)
 {
 	return -EINVAL;
 }
 #endif /* CONFIG_MEMORY_HOTREMOVE */
-EXPORT_SYMBOL_GPL(remove_memory);
+EXPORT_SYMBOL_GPL(offline_memory);

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