make slub.c:slab_address() static

slab_address() can become static.

Signed-off-by: Adrian Bunk <[e-mail]>
Signed-off-by: Christoph Lameter <[e-mail]>

mm/slub.c

···
 	return (unsigned long)addr & PAGE_MAPPING_ANON;
 }
 
-void *slab_address(struct page *page)
+static void *slab_address(struct page *page)
 {
 	return page->end - PAGE_MAPPING_ANON;
 }