page->private = (unsigned long)mp; 
set_page_private(page, (unsigned long)mp); 
static inline int insert_metapage(struct page *page, struct metapage *mp){	if (mp) {		page->private = (unsigned long)mp;		SetPagePrivate(page);		kmap(page);	}	return 0;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/4c21e2f2441dc5fbb957b030333f5a3f2d02dea7/jfs_metapage.c/buggy/fs/jfs/jfs_metapage.c