418 struct zone {  struct
587 static inline unsigned long zone_managed_pages(struct zone *zone)  in zone_managed_pages()  argument
589 	return (unsigned long)atomic_long_read(&zone->managed_pages);  in zone_managed_pages()
592 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()  argument
594 	return zone->zone_start_pfn + zone->spanned_pages;  in zone_end_pfn()
597 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()  argument
599 	return zone->zone_start_pfn <= pfn && pfn < zone_end_pfn(zone);  in zone_spans_pfn()
602 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()  argument
604 	return zone->initialized;  in zone_is_initialized()
607 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()  argument
609 	return zone->spanned_pages == 0;  in zone_is_empty()
616 static inline bool zone_intersects(struct zone *zone,  in zone_intersects()  argument
619 	if (zone_is_empty(zone))  in zone_intersects()
621 	if (start_pfn >= zone_end_pfn(zone) ||  in zone_intersects()
622 	    start_pfn + nr_pages <= zone->zone_start_pfn)  in zone_intersects()
655 	struct zone *zone;	/* Pointer to actual zone */  member
700 	struct zone node_zones[MAX_NR_ZONES];
814 void wakeup_kswapd(struct zone *zone, gfp_t gfp_mask, int order,
816 bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
819 bool zone_watermark_ok(struct zone *z, unsigned int order,
822 bool zone_watermark_ok_safe(struct zone *z, unsigned int order,
828 extern void init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
865 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
873 static inline bool managed_zone(struct zone *zone)  in managed_zone()  argument
875 	return zone_managed_pages(zone);  in managed_zone()
879 static inline bool populated_zone(struct zone *zone)  in populated_zone()  argument
881 	return zone->present_pages;  in populated_zone()
885 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
887 	return zone->node;  in zone_to_nid()
890 static inline void zone_set_nid(struct zone *zone, int nid)  in zone_set_nid()  argument
892 	zone->node = nid;  in zone_set_nid()
895 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
900 static inline void zone_set_nid(struct zone *zone, int nid) {}  in zone_set_nid()  argument
932 static inline int is_highmem(struct zone *zone)  in is_highmem()  argument
935 	return is_highmem_idx(zone_idx(zone));  in is_highmem()
978 extern struct zone *next_zone(struct zone *zone);
995 #define for_each_zone(zone)			        \  argument
996 	for (zone = (first_online_pgdat())->node_zones; \
997 	     zone;					\
998 	     zone = next_zone(zone))
1000 #define for_each_populated_zone(zone)		        \  argument
1001 	for (zone = (first_online_pgdat())->node_zones; \
1002 	     zone;					\
1003 	     zone = next_zone(zone))			\
1004 		if (!populated_zone(zone))		\
1008 static inline struct zone *zonelist_zone(struct zoneref *zoneref)  in zonelist_zone()
1010 	return zoneref->zone;  in zonelist_zone()
1020 	return zone_to_nid(zoneref->zone);  in zonelist_node_idx()
1083 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1084 	for (z = first_zones_zonelist(zlist, highidx, nodemask), zone = zonelist_zone(z);	\
1085 		zone;							\
1087 			zone = zonelist_zone(z))
1089 #define for_next_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1090 	for (zone = z->zone;	\
1091 		zone;							\
1093 			zone = zonelist_zone(z))
1105 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument
1106 	for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, NULL)
1445 					struct page *page, struct zone *zone);
1448 					struct page *page, struct zone *zone)  in memmap_valid_within()  argument