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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>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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lliubbo authored and Michal Hocko committed Dec 22, 2011
1 parent a3ddd7f commit 95a1efa923f48e7a4891b4269b7173e15d9e01b7
Showing with 14 additions and 16 deletions.
  1. +14 −16 mm/page_cgroup.c
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@@ -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;

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