mm: remove dependency on CONFIG_FLATMEM from online_page()

dkiper · torvalds · commit a3bc42f584cf · 2011-05-25T08:39:28.000-07:00
online_pages() is only compiled for CONFIG_MEMORY_HOTPLUG_SPARSE, so there
is no need to support CONFIG_FLATMEM code within it.

This patch removes code that is never used.

Signed-off-by: Daniel Kiper &lt;dkiper@net-space.pl&gt;
Acked-by: Dave Hansen &lt;dave@linux.vnet.ibm.com&gt;
Acked-by: David Rientjes &lt;rientjes@google.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
@@ -374,10 +374,6 @@ void online_page(struct page *page)
 		totalhigh_pages++;
 #endif
 
-#ifdef CONFIG_FLATMEM
-	max_mapnr = max(pfn, max_mapnr);
-#endif
-
 	ClearPageReserved(page);
 	init_page_count(page);
 	__free_page(page);
