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 b99d19e..de1616a 100644 (file)
--- 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;