page->private = 0; 
set_page_private(page, 0); 
static inline void rmv_page_order(struct page *page){	__ClearPagePrivate(page);	page->private = 0;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/4c21e2f2441dc5fbb957b030333f5a3f2d02dea7/page_alloc.c/clean/mm/page_alloc.c