708 struct zone {  struct
901 static inline unsigned long zone_managed_pages(struct zone *zone)  in zone_managed_pages()  argument
903 	return (unsigned long)atomic_long_read(&zone->managed_pages);  in zone_managed_pages()
906 static inline unsigned long zone_cma_pages(struct zone *zone)  in zone_cma_pages()  argument
909 	return zone->cma_pages;  in zone_cma_pages()
915 static inline unsigned long zone_end_pfn(const struct zone *zone)  in zone_end_pfn()  argument
917 	return zone->zone_start_pfn + zone->spanned_pages;  in zone_end_pfn()
920 static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn)  in zone_spans_pfn()  argument
922 	return zone->zone_start_pfn <= pfn && pfn < zone_end_pfn(zone);  in zone_spans_pfn()
925 static inline bool zone_is_initialized(struct zone *zone)  in zone_is_initialized()  argument
927 	return zone->initialized;  in zone_is_initialized()
930 static inline bool zone_is_empty(struct zone *zone)  in zone_is_empty()  argument
932 	return zone->spanned_pages == 0;  in zone_is_empty()
939 static inline bool zone_intersects(struct zone *zone,  in zone_intersects()  argument
942 	if (zone_is_empty(zone))  in zone_intersects()
944 	if (start_pfn >= zone_end_pfn(zone) ||  in zone_intersects()
945 	    start_pfn + nr_pages <= zone->zone_start_pfn)  in zone_intersects()
978 	struct zone *zone;	/* Pointer to actual zone */  member
1029 	struct zone node_zones[MAX_NR_ZONES];
1160 void wakeup_kswapd(struct zone *zone, gfp_t gfp_mask, int order,
1162 bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
1165 bool zone_watermark_ok(struct zone *z, unsigned int order,
1168 bool zone_watermark_ok_safe(struct zone *z, unsigned int order,
1179 extern void init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
1202 #define zone_idx(zone)		((zone) - (zone)->zone_pgdat->node_zones)  argument
1205 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()  argument
1207 	return zone_idx(zone) == ZONE_DEVICE;  in zone_is_zone_device()
1210 static inline bool zone_is_zone_device(struct zone *zone)  in zone_is_zone_device()  argument
1222 static inline bool managed_zone(struct zone *zone)  in managed_zone()  argument
1224 	return zone_managed_pages(zone);  in managed_zone()
1228 static inline bool populated_zone(struct zone *zone)  in populated_zone()  argument
1230 	return zone->present_pages;  in populated_zone()
1234 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
1236 	return zone->node;  in zone_to_nid()
1239 static inline void zone_set_nid(struct zone *zone, int nid)  in zone_set_nid()  argument
1241 	zone->node = nid;  in zone_set_nid()
1244 static inline int zone_to_nid(struct zone *zone)  in zone_to_nid()  argument
1249 static inline void zone_set_nid(struct zone *zone, int nid) {}  in zone_set_nid()  argument
1280 static inline int is_highmem(struct zone *zone)  in is_highmem()  argument
1283 	return is_highmem_idx(zone_idx(zone));  in is_highmem()
1328 extern struct zone *next_zone(struct zone *zone);
1346 #define for_each_zone(zone)			        \  argument
1347 	for (zone = (first_online_pgdat())->node_zones; \
1348 	     zone;					\
1349 	     zone = next_zone(zone))
1351 #define for_each_populated_zone(zone)		        \  argument
1352 	for (zone = (first_online_pgdat())->node_zones; \
1353 	     zone;					\
1354 	     zone = next_zone(zone))			\
1355 		if (!populated_zone(zone))		\
1359 static inline struct zone *zonelist_zone(struct zoneref *zoneref)  in zonelist_zone()
1361 	return zoneref->zone;  in zonelist_zone()
1371 	return zone_to_nid(zoneref->zone);  in zonelist_node_idx()
1438 #define for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, nodemask) \  argument
1439 	for (z = first_zones_zonelist(zlist, highidx, nodemask), zone = zonelist_zone(z);	\
1440 		zone;							\
1442 			zone = zonelist_zone(z))
1444 #define for_next_zone_zonelist_nodemask(zone, z, highidx, nodemask) \  argument
1445 	for (zone = z->zone;	\
1446 		zone;							\
1448 			zone = zonelist_zone(z))
1460 #define for_each_zone_zonelist(zone, z, zlist, highidx) \  argument
1461 	for_each_zone_zonelist_nodemask(zone, z, zlist, highidx, NULL)