linux-kernel - [RFC PATCH v3 1/13] memory-hotplug : rename remove_memory to offline

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Message-ID: <4FFAB10F.9070701@jp.fujitsu.com>
Date:	Mon, 9 Jul 2012 19:23:11 +0900
From:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
To:	<linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
	<linuxppc-dev@...ts.ozlabs.org>, <linux-acpi@...r.kernel.org>
CC:	<rientjes@...gle.com>, <liuj97@...il.com>, <len.brown@...el.com>,
	<benh@...nel.crashing.org>, <paulus@...ba.org>, <cl@...ux.com>,
	<minchan.kim@...il.com>, <akpm@...ux-foundation.org>,
	<kosaki.motohiro@...fujitsu.com>, <wency@...fujitsu.com>
Subject: [RFC PATCH v3 1/13] memory-hotplug : rename remove_memory to offline_memory

remove_memory() does not remove memory but just offlines memory. The patch
changes name of it to offline_memory().

CC: David Rientjes <rientjes@...gle.com>
CC: Jiang Liu <liuj97@...il.com>
CC: Len Brown <len.brown@...el.com>
CC: Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC: Paul Mackerras <paulus@...ba.org>
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>
CC: Wen Congyang <wency@...fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>

---
 drivers/acpi/acpi_memhotplug.c |    2 +-
 drivers/base/memory.c          |    4 ++--
 include/linux/memory_hotplug.h |    2 +-
 mm/memory_hotplug.c            |    6 +++---
 4 files changed, 7 insertions(+), 7 deletions(-)

Index: linux-3.5-rc4/drivers/acpi/acpi_memhotplug.c
===================================================================
--- linux-3.5-rc4.orig/drivers/acpi/acpi_memhotplug.c	2012-07-03 14:21:46.102416917 +0900
+++ linux-3.5-rc4/drivers/acpi/acpi_memhotplug.c	2012-07-03 14:21:49.458374960 +0900
@@ -318,7 +318,7 @@ static int acpi_memory_disable_device(st
 	 */
 	list_for_each_entry_safe(info, n, &mem_device->res_list, list) {
 		if (info->enabled) {
-			result = remove_memory(info->start_addr, info->length);
+			result = offline_memory(info->start_addr, info->length);
 			if (result)
 				return result;
 		}
Index: linux-3.5-rc4/drivers/base/memory.c
===================================================================
--- linux-3.5-rc4.orig/drivers/base/memory.c	2012-07-03 14:21:46.095417003 +0900
+++ linux-3.5-rc4/drivers/base/memory.c	2012-07-03 14:21:49.459374948 +0900
@@ -266,8 +266,8 @@ memory_block_action(unsigned long phys_i
 			break;
 		case MEM_OFFLINE:
 			start_paddr = page_to_pfn(first_page) << PAGE_SHIFT;
-			ret = remove_memory(start_paddr,
-					    nr_pages << PAGE_SHIFT);
+			ret = offline_memory(start_paddr,
+					     nr_pages << PAGE_SHIFT);
 			break;
 		default:
 			WARN(1, KERN_WARNING "%s(%ld, %ld) unknown action: "
Index: linux-3.5-rc4/mm/memory_hotplug.c
===================================================================
--- linux-3.5-rc4.orig/mm/memory_hotplug.c	2012-07-03 14:21:46.102416917 +0900
+++ linux-3.5-rc4/mm/memory_hotplug.c	2012-07-03 14:21:49.466374860 +0900
@@ -990,7 +990,7 @@ out:
 	return ret;
 }

-int remove_memory(u64 start, u64 size)
+int offline_memory(u64 start, u64 size)
 {
 	unsigned long start_pfn, end_pfn;

@@ -999,9 +999,9 @@ int remove_memory(u64 start, u64 size)
 	return offline_pages(start_pfn, end_pfn, 120 * HZ);
 }
 #else
-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);
Index: linux-3.5-rc4/include/linux/memory_hotplug.h
===================================================================
--- linux-3.5-rc4.orig/include/linux/memory_hotplug.h	2012-07-03 14:21:46.102416917 +0900
+++ linux-3.5-rc4/include/linux/memory_hotplug.h	2012-07-03 14:21:49.471374796 +0900
@@ -233,7 +233,7 @@ static inline int is_mem_section_removab
 extern int mem_online_node(int nid);
 extern int add_memory(int nid, u64 start, u64 size);
 extern int arch_add_memory(int nid, u64 start, u64 size);
-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);

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