Messages in this thread Patch in this message | | | From | Cody P Schafer <> | Subject | [RFC PATCH v2 06/25] mm: add nid_zone() helper | Date | Thu, 11 Apr 2013 18:13:38 -0700 |
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Add nid_zone(), which returns the zone corresponding to a given nid & zonenum.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> --- include/linux/mm.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h index 9ddae00..1b6abae 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -708,9 +708,14 @@ static inline void page_nid_reset_last(struct page *page) } #endif +static inline struct zone *nid_zone(int nid, enum zone_type zonenum) +{ + return &NODE_DATA(nid)->node_zones[zonenum]; +} + static inline struct zone *page_zone(const struct page *page) { - return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)]; + return nid_zone(page_to_nid(page), page_zonenum(page)); } #ifdef SECTION_IN_PAGE_FLAGS -- 1.8.2.1
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