From: Bob Liu <lliubbo@gmail.com>
Date: Fri, 13 Jan 2012 01:19:08 +0000 (-0800)
Subject: page_cgroup: drop multi CONFIG_MEMORY_HOTPLUG
X-Git-Tag: v3.3-rc1~81^2~48
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0efc8eb9c6a177836dac88b2cbb8815f9e4f8d5a;p=platform%2Fkernel%2Flinux-stable.git

page_cgroup: drop multi CONFIG_MEMORY_HOTPLUG

No need for two CONFIG_MEMORY_HOTPLUG blocks.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index b99d19edf8..de1616a 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -124,22 +124,6 @@ static void *__meminit alloc_page_cgroup(size_t size, int nid)
 	return addr;
 }
 
-#ifdef CONFIG_MEMORY_HOTPLUG
-static void free_page_cgroup(void *addr)
-{
-	if (is_vmalloc_addr(addr)) {
-		vfree(addr);
-	} else {
-		struct page *page = virt_to_page(addr);
-		size_t table_size =
-			sizeof(struct page_cgroup) * PAGES_PER_SECTION;
-
-		BUG_ON(PageReserved(page));
-		free_pages_exact(addr, table_size);
-	}
-}
-#endif
-
 static int __meminit init_section_page_cgroup(unsigned long pfn, int nid)
 {
 	struct mem_section *section;
@@ -176,6 +160,20 @@ static int __meminit init_section_page_cgroup(unsigned long pfn, int nid)
 	return 0;
 }
 #ifdef CONFIG_MEMORY_HOTPLUG
+static void free_page_cgroup(void *addr)
+{
+	if (is_vmalloc_addr(addr)) {
+		vfree(addr);
+	} else {
+		struct page *page = virt_to_page(addr);
+		size_t table_size =
+			sizeof(struct page_cgroup) * PAGES_PER_SECTION;
+
+		BUG_ON(PageReserved(page));
+		free_pages_exact(addr, table_size);
+	}
+}
+
 void __free_page_cgroup(unsigned long pfn)
 {
 	struct mem_section *ms;