818 struct zone {  struct
1014 static inline unsigned long wmark_pages(const struct zone *z,  in wmark_pages()
1020 static inline unsigned long min_wmark_pages(const struct zone *z)  in min_wmark_pages()
1025 static inline unsigned long low_wmark_pages(const struct zone *z)  in low_wmark_pages()
1030 static inline unsigned long high_wmark_pages(const struct zone *z)  in high_wmark_pages()
1035 static inline unsigned long promo_wmark_pages(const struct zone *z)  in promo_wmark_pages()
1040 static inline unsigned long zone_managed_pages(struct zone *zone)  in zone_managed_pages()  argument
1042 	return (unsigned long)atomic_long_read(&zone->managed_pages);  in zone_managed_pages()
1045 static inline unsigned long zone_cma_pages(struct zone *zone)  in zone_cma_pages()  argument
1048 	return zone->cma_pages;  in zone_cma_pages()
1054 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()  argument
1056 	return zone->zone_start_pfn + zone->spanned_pages;  in zone_end_pfn()
1059 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()  argument
1061 	return zone->zone_start_pfn <= pfn && pfn < zone_end_pfn(zone);  in zone_spans_pfn()
1064 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()  argument
1066 	return zone->initialized;  in zone_is_initialized()
1069 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()  argument
1071 	return zone->spanned_pages == 0;  in zone_is_empty()
1155 extern void memmap_init_zone_device(struct zone *, unsigned long,
1189 static inline bool zone_intersects(struct zone *zone,  in zone_intersects()  argument
1192 	if (zone_is_empty(zone))  in zone_intersects()
1194 	if (start_pfn >= zone_end_pfn(zone) ||  in zone_intersects()
1195 	    start_pfn + nr_pages <= zone->zone_start_pfn)  in zone_intersects()
1228 	struct zone *zone;	/* Pointer to actual zone */  member
1304 	struct zone node_zones[MAX_NR_ZONES];
1454 void wakeup_kswapd(struct zone *zone, gfp_t gfp_mask, int order,
1456 bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
1459 bool zone_watermark_ok(struct zone *z, unsigned int order,
1462 bool zone_watermark_ok_safe(struct zone *z, unsigned int order,
1473 extern void init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
1496 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
1499 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()  argument
1501 	return zone_idx(zone) == ZONE_DEVICE;  in zone_is_zone_device()
1504 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()  argument
1516 static inline bool managed_zone(struct zone *zone)  in managed_zone()  argument
1518 	return zone_managed_pages(zone);  in managed_zone()
1522 static inline bool populated_zone(struct zone *zone)  in populated_zone()  argument
1524 	return zone->present_pages;  in populated_zone()
1528 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
1530 	return zone->node;  in zone_to_nid()
1533 static inline void zone_set_nid(struct zone *zone, int nid)  in zone_set_nid()  argument
1535 	zone->node = nid;  in zone_set_nid()
1538 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
1543 static inline void zone_set_nid(struct zone *zone, int nid) {}  in zone_set_nid()  argument
1565 static inline int is_highmem(struct zone *zone)  in is_highmem()  argument
1567 	return is_highmem_idx(zone_idx(zone));  in is_highmem()
1596 extern struct zone *next_zone(struct zone *zone);
1613 #define for_each_zone(zone)			        \  argument
1614 	for (zone = (first_online_pgdat())->node_zones; \
1615 	     zone;					\
1616 	     zone = next_zone(zone))
1618 #define for_each_populated_zone(zone)		        \  argument
1619 	for (zone = (first_online_pgdat())->node_zones; \
1620 	     zone;					\
1621 	     zone = next_zone(zone))			\
1622 		if (!populated_zone(zone))		\
1626 static inline struct zone *zonelist_zone(struct zoneref *zoneref)  in zonelist_zone()
1628 	return zoneref->zone;  in zonelist_zone()
1638 	return zone_to_nid(zoneref->zone);  in zonelist_node_idx()
1705 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1706 	for (z = first_zones_zonelist(zlist, highidx, nodemask), zone = zonelist_zone(z);	\
1707 		zone;							\
1709 			zone = zonelist_zone(z))
1711 #define for_next_zone_zonelist_nodemask(zone, z, highidx, nodemask) \  argument
1712 	for (zone = zonelist_zone(z);	\
1713 		zone;							\
1715 			zone = zonelist_zone(z))
1727 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument
1728 	for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, NULL)