BUG_ON(PageReserved(page)); 
int try_to_unmap(struct page *page){	int ret;	BUG_ON(PageReserved(page));	BUG_ON(!PageLocked(page));	if (PageAnon(page))		ret = try_to_unmap_anon(page);	else		ret = try_to_unmap_file(page);	if (!page_mapped(page))		ret = SWAP_SUCCESS;	return ret;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/b5810039a54e5babf428e9a1e89fc1940fabff11/rmap.c/buggy/mm/rmap.c