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-rw-r--r--include/linux/mmzone.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 1aca6cebbb78..26ef24076b76 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -806,6 +806,14 @@ extern struct zone *next_zone(struct zone *zone);
zone; \
zone = next_zone(zone))
+#define for_each_populated_zone(zone) \
+ for (zone = (first_online_pgdat())->node_zones; \
+ zone; \
+ zone = next_zone(zone)) \
+ if (!populated_zone(zone)) \
+ ; /* do nothing */ \
+ else
+
static inline struct zone *zonelist_zone(struct zoneref *zoneref)
{
return zoneref->zone;