Messages in this thread Patch in this message |  | | From | Cody P Schafer <> | Subject | [PATCH 5/9] mmzone: add pgdat_{end_pfn,is_empty}() helpers & consolidate. | Date | Thu, 17 Jan 2013 14:52:57 -0800 |
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From: Cody P Schafer <jmesmon@gmail.com>
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> --- include/linux/mmzone.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 696cb7c..d7abff0 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -772,11 +772,17 @@ 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> -- 1.8.0.3
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