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-rw-r--r--include/linux/mmzone.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 34343f51e211..cf8925962b68 100644
--- a/include/linux/mmzone.h
+++ b/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