[PATCH] rename page_to_nodenum()

From: "Martin J. Bligh" <mbligh@aracnet.com>

I'd prefer we renamed this to page_to_nid() before anyone starts using it. 
This fits with the naming convention of everything else (pfn_to_nid, etc). 
Nobody uses it right now - I grepped the whole tree.

include/linux/mm.h

@@ -351,7 +351,7 @@ static inline unsigned long page_zonenum(struct page *page)
 {
 	return (page->flags >> NODEZONE_SHIFT) & (~(~0UL << ZONES_SHIFT));
 }
-static inline unsigned long page_nodenum(struct page *page)
+static inline unsigned long page_to_nid(struct page *page)
 {
 	return (page->flags >> (NODEZONE_SHIFT + ZONES_SHIFT));
 }