845 struct zone {  struct
858 	 * wasting several GB of ram we must reserve some of the lower zone  argument
869 	struct pglist_data	*zone_pgdat;  argument
871 	struct per_cpu_zonestat	__percpu *per_cpu_zonestats;  argument
889 	unsigned long		zone_start_pfn;  argument
892 	 * spanned_pages is the total pages spanned by the zone, including  argument
949 	 * of pageblock. Protected by zone->lock.  argument
971 	/* To be called once the last page in the zone is accepted */  argument
975 	/* zone flags, see below */  argument
976 	unsigned long		flags;
979 	spinlock_t		lock;
982 	struct llist_head	trylock_free_pages;
992 	unsigned long percpu_drift_mark;
996 	unsigned long		compact_cached_free_pfn;
998 	unsigned long		compact_cached_migrate_pfn[ASYNC_AND_SYNC];
999 	unsigned long		compact_init_migrate_pfn;
1000 	unsigned long		compact_init_free_pfn;
1010 	unsigned int		compact_considered;
1011 	unsigned int		compact_defer_shift;
1012 	int			compact_order_failed;
1040 	ZONE_BOOSTED_WATERMARK,		/* zone recently boosted watermarks.  argument
1073 static inline unsigned long zone_managed_pages(struct zone *zone)  in zone_managed_pages()
1078 static inline unsigned long zone_cma_pages(struct zone *zone)  in zone_cma_pages()
1087 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()
1092 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()
1097 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()
1102 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()
1232 static inline bool zone_intersects(struct zone *zone,  in zone_intersects()
1271 	struct zone *zone;	/* Pointer to actual zone */  member
1537 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
1540 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()
1545 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()
1557 static inline bool managed_zone(struct zone *zone)  in managed_zone()
1563 static inline bool populated_zone(struct zone *zone)  in populated_zone()
1569 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()
1574 static inline void zone_set_nid(struct zone *zone, int nid)  in zone_set_nid()
1579 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()
1584 static inline void zone_set_nid(struct zone *zone, int nid) {}  in zone_set_nid()
1606 static inline int is_highmem(struct zone *zone)  in is_highmem()
1654 #define for_each_zone(zone)			        \  argument
1659 #define for_each_populated_zone(zone)		        \  argument
1746 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1752 #define for_next_zone_zonelist_nodemask(zone, z, highidx, nodemask) \  argument
1768 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument