Commit da3649e1 authored by Cody P Schafer's avatar Cody P Schafer Committed by Linus Torvalds

mmzone: add pgdat_{end_pfn,is_empty}() helpers & consolidate.

Add pgdat_end_pfn() and pgdat_is_empty() helpers which match the similar
zone_*() functions.

Change node_end_pfn() to be a wrapper of pgdat_end_pfn().
Signed-off-by: default avatarCody P Schafer <>
Cc: David Hansen <>
Cc: Catalin Marinas <>
Cc: Johannes Weiner <>
Cc: Mel Gorman <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent d29bb978
......@@ -756,11 +756,17 @@ typedef struct pglist_data {
#define nid_page_nr(nid, pagenr) pgdat_page_nr(NODE_DATA(nid),(pagenr))
#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
#define node_end_pfn(nid) pgdat_end_pfn(NODE_DATA(nid))
#define node_end_pfn(nid) ({\
pg_data_t *__pgdat = NODE_DATA(nid);\
__pgdat->node_start_pfn + __pgdat->node_spanned_pages;\
static inline unsigned long pgdat_end_pfn(pg_data_t *pgdat)
return pgdat->node_start_pfn + pgdat->node_spanned_pages;
static inline bool pgdat_is_empty(pg_data_t *pgdat)
return !pgdat->node_start_pfn && !pgdat->node_spanned_pages;
#include <linux/memory_hotplug.h>
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