872 struct zone {  struct
1068 static inline unsigned long wmark_pages(const struct zone *z,  in wmark_pages()
1074 static inline unsigned long min_wmark_pages(const struct zone *z)  in min_wmark_pages()
1079 static inline unsigned long low_wmark_pages(const struct zone *z)  in low_wmark_pages()
1084 static inline unsigned long high_wmark_pages(const struct zone *z)  in high_wmark_pages()
1089 static inline unsigned long promo_wmark_pages(const struct zone *z)  in promo_wmark_pages()
1094 static inline unsigned long zone_managed_pages(struct zone *zone)  in zone_managed_pages()  argument
1096 	return (unsigned long)atomic_long_read(&zone->managed_pages);  in zone_managed_pages()
1099 static inline unsigned long zone_cma_pages(struct zone *zone)  in zone_cma_pages()  argument
1102 	return zone->cma_pages;  in zone_cma_pages()
1108 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()  argument
1110 	return zone->zone_start_pfn + zone->spanned_pages;  in zone_end_pfn()
1113 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()  argument
1115 	return zone->zone_start_pfn <= pfn && pfn < zone_end_pfn(zone);  in zone_spans_pfn()
1118 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()  argument
1120 	return zone->initialized;  in zone_is_initialized()
1123 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()  argument
1125 	return zone->spanned_pages == 0;  in zone_is_empty()
1209 extern void memmap_init_zone_device(struct zone *, unsigned long,
1243 static inline bool zone_intersects(struct zone *zone,  in zone_intersects()  argument
1246 	if (zone_is_empty(zone))  in zone_intersects()
1248 	if (start_pfn >= zone_end_pfn(zone) ||  in zone_intersects()
1249 	    start_pfn + nr_pages <= zone->zone_start_pfn)  in zone_intersects()
1282 	struct zone *zone;	/* Pointer to actual zone */  member
1358 	struct zone node_zones[MAX_NR_ZONES];
1512 void wakeup_kswapd(struct zone *zone, gfp_t gfp_mask, int order,
1514 bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
1517 bool zone_watermark_ok(struct zone *z, unsigned int order,
1520 bool zone_watermark_ok_safe(struct zone *z, unsigned int order,
1531 extern void init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
1554 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
1557 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()  argument
1559 	return zone_idx(zone) == ZONE_DEVICE;  in zone_is_zone_device()
1562 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()  argument
1574 static inline bool managed_zone(struct zone *zone)  in managed_zone()  argument
1576 	return zone_managed_pages(zone);  in managed_zone()
1580 static inline bool populated_zone(struct zone *zone)  in populated_zone()  argument
1582 	return zone->present_pages;  in populated_zone()
1586 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
1588 	return zone->node;  in zone_to_nid()
1591 static inline void zone_set_nid(struct zone *zone, int nid)  in zone_set_nid()  argument
1593 	zone->node = nid;  in zone_set_nid()
1596 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
1601 static inline void zone_set_nid(struct zone *zone, int nid) {}  in zone_set_nid()  argument
1623 static inline int is_highmem(struct zone *zone)  in is_highmem()  argument
1625 	return is_highmem_idx(zone_idx(zone));  in is_highmem()
1654 extern struct zone *next_zone(struct zone *zone);
1683 #define for_each_zone(zone)			        \  argument
1684 	for (zone = (first_online_pgdat())->node_zones; \
1685 	     zone;					\
1686 	     zone = next_zone(zone))
1688 #define for_each_populated_zone(zone)		        \  argument
1689 	for (zone = (first_online_pgdat())->node_zones; \
1690 	     zone;					\
1691 	     zone = next_zone(zone))			\
1692 		if (!populated_zone(zone))		\
1696 static inline struct zone *zonelist_zone(struct zoneref *zoneref)  in zonelist_zone()
1698 	return zoneref->zone;  in zonelist_zone()
1708 	return zone_to_nid(zoneref->zone);  in zonelist_node_idx()
1775 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1776 	for (z = first_zones_zonelist(zlist, highidx, nodemask), zone = zonelist_zone(z);	\
1777 		zone;							\
1779 			zone = zonelist_zone(z))
1781 #define for_next_zone_zonelist_nodemask(zone, z, highidx, nodemask) \  argument
1782 	for (zone = zonelist_zone(z);	\
1783 		zone;							\
1785 			zone = zonelist_zone(z))
1797 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument
1798 	for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, NULL)