linux-kernel - [PATCH] memory-hotplug: mm/Kconfig: move auto selects from MEMORY_HOTPLUG to MEMORY

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Date:	Fri, 18 Jan 2013 15:54:36 +0800
From:	Lin Feng <linfeng@...fujitsu.com>
To:	akpm@...ux-foundation.org, kamezawa.hiroyu@...fujitsu.com
Cc:	mhocko@...e.cz, mel@....ul.ie, minchan@...nel.org,
	aquini@...hat.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, wency@...fujitsu.com,
	tangchen@...fujitsu.com, laijs@...fujitsu.com,
	Lin Feng <linfeng@...fujitsu.com>
Subject: [PATCH] memory-hotplug: mm/Kconfig: move auto selects from MEMORY_HOTPLUG to MEMORY_HOTREMOVE as needed

Since we have 2 config options called MEMORY_HOTPLUG and MEMORY_HOTREMOVE
used for memory hot-add and hot-remove separately, and codes in function
register_page_bootmem_info_node() are only used for collecting infomation
for hot-remove(commit 04753278), so move it to MEMORY_HOTREMOVE.

Besides page_isolation.c selected by MEMORY_ISOLATION under MEMORY_HOTPLUG
is also such case, move it too.

Signed-off-by: Lin Feng <linfeng@...fujitsu.com>
---
 mm/Kconfig |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index f8c5799..a96c010 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -172,8 +172,6 @@ config HAVE_BOOTMEM_INFO_NODE
 # eventually, we can have this option just 'select SPARSEMEM'
 config MEMORY_HOTPLUG
 	bool "Allow for memory hot-add"
-	select MEMORY_ISOLATION
-	select HAVE_BOOTMEM_INFO_NODE if X86_64
 	depends on SPARSEMEM || X86_64_ACPI_NUMA
 	depends on HOTPLUG && ARCH_ENABLE_MEMORY_HOTPLUG
 	depends on (IA64 || X86 || PPC_BOOK3S_64 || SUPERH || S390)
@@ -184,6 +182,8 @@ config MEMORY_HOTPLUG_SPARSE
 
 config MEMORY_HOTREMOVE
 	bool "Allow for memory hot remove"
+	select MEMORY_ISOLATION
+	select HAVE_BOOTMEM_INFO_NODE if X86_64
 	depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE
 	depends on MIGRATION
 
-- 
1.7.1

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