From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: linux-mm <linux-mm@kvack.org>
Subject: [RFC] pearing off zone from physical memory layout [2/10] add helper function page_node()
Date: Fri, 03 Feb 2006 16:39:53 +0900 [thread overview]
Message-ID: <43E308C9.2020702@jp.fujitsu.com> (raw)
A helper function to access pgdat from pages.
Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Index: hogehoge/include/linux/mm.h
===================================================================
--- hogehoge.orig/include/linux/mm.h
+++ hogehoge/include/linux/mm.h
@@ -478,6 +478,12 @@ static inline unsigned long page_to_nid(
else
return page_zone(page)->zone_pgdat->node_id;
}
+
+static inline struct pglist_data *page_node(struct page *page)
+{
+ return NODE_DATA(page_to_nid(page));
+}
+
static inline unsigned long page_to_section(struct page *page)
{
return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK;
--
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reply other threads:[~2006-02-03 7:39 UTC|newest]
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