359 struct zone {  struct
370 	 * wasting several GB of ram we must reserve some of the lower zone  argument
381 	struct pglist_data	*zone_pgdat;  argument
393 	unsigned long		zone_start_pfn;  argument
396 	 * spanned_pages is the total pages spanned by the zone, including  argument
446 	 * of pageblock. Protected by zone->lock.  argument
464 	/* zone flags, see below */  argument
465 	unsigned long		flags;
468 	spinlock_t		lock;
482 	unsigned long		compact_cached_free_pfn;
484 	unsigned long		compact_cached_migrate_pfn[2];
493 	unsigned int		compact_considered;
494 	unsigned int		compact_defer_shift;
495 	int			compact_order_failed;
500 	bool			compact_blockskip_flush;
525 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()
530 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()
535 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()
540 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()
549 static inline bool zone_intersects(struct zone *zone,  in zone_intersects()
588 	struct zone *zone;	/* Pointer to actual zone */  member
728 static inline spinlock_t *zone_lru_lock(struct zone *zone)  in zone_lru_lock()
796 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
799 static inline bool is_dev_zone(const struct zone *zone)  in is_dev_zone()
804 static inline bool is_dev_zone(const struct zone *zone)  in is_dev_zone()
816 static inline bool managed_zone(struct zone *zone)  in managed_zone()
822 static inline bool populated_zone(struct zone *zone)  in populated_zone()
828 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()
833 static inline void zone_set_nid(struct zone *zone, int nid)  in zone_set_nid()
838 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()
843 static inline void zone_set_nid(struct zone *zone, int nid) {}  in zone_set_nid()
875 static inline int is_highmem(struct zone *zone)  in is_highmem()
936 #define for_each_zone(zone)			        \  argument
941 #define for_each_populated_zone(zone)		        \  argument
1024 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1030 #define for_next_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1046 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument
1326 					struct page *page, struct zone *zone)  in memmap_valid_within()