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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>
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@ -756,11 +756,17 @@ typedef struct pglist_data {
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#define nid_page_nr(nid, pagenr) pgdat_page_nr(NODE_DATA(nid),(pagenr))
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#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
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#define node_end_pfn(nid) pgdat_end_pfn(NODE_DATA(nid))
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#define node_end_pfn(nid) ({\
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pg_data_t *__pgdat = NODE_DATA(nid);\
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__pgdat->node_start_pfn + __pgdat->node_spanned_pages;\
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})
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static inline unsigned long pgdat_end_pfn(pg_data_t *pgdat)
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{
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return pgdat->node_start_pfn + pgdat->node_spanned_pages;
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}
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static inline bool pgdat_is_empty(pg_data_t *pgdat)
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{
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return !pgdat->node_start_pfn && !pgdat->node_spanned_pages;
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}
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#include <linux/memory_hotplug.h>
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