220 	struct zone *zone;  member
331 struct zone {  struct
342 	 * wasting several GB of ram we must reserve some of the lower zone  argument
356 	 * this zone's LRU.  Maintained by the pageout code.  argument
360 	struct pglist_data	*zone_pgdat;  argument
364 	 * This is a per-zone reserve of pages that should not be  argument
379 	 * zone reclaim becomes active if more unmapped pages exist.  argument
386 	unsigned long		zone_start_pfn;  argument
389 	 * spanned_pages is the total pages spanned by the zone, including  argument
439 	 * of pageblock. Protected by zone->lock.  argument
441 	unsigned long		nr_isolate_pageblock;
446 	seqlock_t		span_seqlock;
481 	/* zone flags, see below */  argument
482 	unsigned long		flags;
485 	spinlock_t		lock;
493 	struct lruvec		lruvec;
496 	atomic_long_t		inactive_age;
503 	unsigned long percpu_drift_mark;
507 	unsigned long		compact_cached_free_pfn;
509 	unsigned long		compact_cached_migrate_pfn[2];
535 	ZONE_OOM_LOCKED,		/* zone is in OOM killer zonelist */  argument
549 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()
554 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()
559 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()
564 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()
598 	struct zone *zone;	/* Pointer to actual zone */  member
716 static inline int zone_id(const struct zone *zone)  in zone_id()
724 static inline bool is_dev_zone(const struct zone *zone)  in is_dev_zone()
729 static inline bool is_dev_zone(const struct zone *zone)  in is_dev_zone()
781 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
783 static inline int populated_zone(struct zone *zone)  in populated_zone()
817 static inline int is_highmem(struct zone *zone)  in is_highmem()
879 #define for_each_zone(zone)			        \  argument
884 #define for_each_populated_zone(zone)		        \  argument
943 					struct zone **zone)  in first_zones_zonelist()
962 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
977 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument
1214 					struct page *page, struct zone *zone)  in memmap_valid_within()