418 struct zone {  struct
430 	 * wasting several GB of ram we must reserve some of the lower zone  argument
441 	struct pglist_data	*zone_pgdat;  argument
453 	unsigned long		zone_start_pfn;  argument
456 	 * spanned_pages is the total pages spanned by the zone, including  argument
500 	 * of pageblock. Protected by zone->lock.  argument
518 	/* zone flags, see below */  argument
519 	unsigned long		flags;
522 	spinlock_t		lock;
536 	unsigned long		compact_cached_free_pfn;
538 	unsigned long		compact_cached_migrate_pfn[2];
539 	unsigned long		compact_init_migrate_pfn;
540 	unsigned long		compact_init_free_pfn;
549 	unsigned int		compact_considered;
550 	unsigned int		compact_defer_shift;
551 	int			compact_order_failed;
556 	bool			compact_blockskip_flush;
582 	ZONE_BOOSTED_WATERMARK,		/* zone recently boosted watermarks.  argument
587 static inline unsigned long zone_managed_pages(struct zone *zone)  in zone_managed_pages()
592 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()
597 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()
602 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()
607 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()
616 static inline bool zone_intersects(struct zone *zone,  in zone_intersects()
655 	struct zone *zone;	/* Pointer to actual zone */  member
865 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
873 static inline bool managed_zone(struct zone *zone)  in managed_zone()
879 static inline bool populated_zone(struct zone *zone)  in populated_zone()
885 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()
890 static inline void zone_set_nid(struct zone *zone, int nid)  in zone_set_nid()
895 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()
900 static inline void zone_set_nid(struct zone *zone, int nid) {}  in zone_set_nid()
932 static inline int is_highmem(struct zone *zone)  in is_highmem()
995 #define for_each_zone(zone)			        \  argument
1000 #define for_each_populated_zone(zone)		        \  argument
1083 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1089 #define for_next_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1105 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument
1448 					struct page *page, struct zone *zone)  in memmap_valid_within()