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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: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Hansen <dave@linux.vnet.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Cody P Schafer 2013-02-22 16:35:27 -08:00 committed by Linus Torvalds
parent d29bb9782d
commit da3649e133
1 changed files with 10 additions and 4 deletions
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14
include/linux/mmzone.h
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@ -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>