diff --git a/[refs] b/[refs]
index aec53802f4ce..8c3ec6a5ddeb 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 108bcc96ef7047c02cad4d229f04da38186a3f3f
+refs/heads/master: 2a6e3ebee2edcade56f836390a5f0c7b76ff5f9e
diff --git a/trunk/include/linux/mmzone.h b/trunk/include/linux/mmzone.h
index 34343f51e211..cf8925962b68 100644
--- a/trunk/include/linux/mmzone.h
+++ b/trunk/include/linux/mmzone.h
@@ -537,6 +537,16 @@ static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)
 	return zone->zone_start_pfn <= pfn && pfn < zone_end_pfn(zone);
 }
 
+static inline bool zone_is_initialized(struct zone *zone)
+{
+	return !!zone->wait_table;
+}
+
+static inline bool zone_is_empty(struct zone *zone)
+{
+	return zone->spanned_pages == 0;
+}
+
 /*
  * The "priority" of VM scanning is how much of the queues we will scan in one
  * go. A value of 12 for DEF_PRIORITY implies that we will scan 1/4096th of the