slub: Move NUMA-related functions under CONFIG_NUMA

Make kmalloc_cache_alloc_node_notrace(), kmalloc_large_node()
and __kmalloc_node_track_caller() to be compiled only when
CONFIG_NUMA is selected.
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

mm/slub.c

@@ -1792,7 +1792,6 @@ void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
 	return ret;
 }
 EXPORT_SYMBOL(kmem_cache_alloc_node);
-#endif
 
 #ifdef CONFIG_TRACING
 void *kmem_cache_alloc_node_notrace(struct kmem_cache *s,
@@ -1803,6 +1802,7 @@ void *kmem_cache_alloc_node_notrace(struct kmem_cache *s,
 }
 EXPORT_SYMBOL(kmem_cache_alloc_node_notrace);
 #endif
+#endif
 
 /*
  * Slow patch handling. This may still be called frequently since objects
@@ -2673,6 +2673,7 @@ void *__kmalloc(size_t size, gfp_t flags)
 }
 EXPORT_SYMBOL(__kmalloc);
 
+#ifdef CONFIG_NUMA
 static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
 {
 	struct page *page;
@@ -2687,7 +2688,6 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
 	return ptr;
 }
 
-#ifdef CONFIG_NUMA
 void *__kmalloc_node(size_t size, gfp_t flags, int node)
 {
 	struct kmem_cache *s;
@@ -3342,6 +3342,7 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
 	return ret;
 }
 
+#ifdef CONFIG_NUMA
 void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
 					int node, unsigned long caller)
 {
@@ -3370,6 +3371,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
 
 	return ret;
 }
+#endif
 
 #ifdef CONFIG_SLUB_DEBUG
 static int count_inuse(struct page *page)