return page->private; 
return page_private(page); 
static inline unsigned long page_order(struct page *page) {	return page->private;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/4c21e2f2441dc5fbb957b030333f5a3f2d02dea7/page_alloc.c/buggy/mm/page_alloc.c