#include <linux/memory_hotplug.h>
extern struct mutex zonelists_mutex;
-void get_zone_counts(unsigned long *active, unsigned long *inactive,
- unsigned long *free);
void build_all_zonelists(void *data);
void wakeup_kswapd(struct zone *zone, int order);
int zone_watermark_ok(struct zone *z, int order, unsigned long mark,