__page_file_index 1374 include/linux/mm.h extern pgoff_t __page_file_index(struct page *page);
__page_file_index 1383 include/linux/mm.h 		return __page_file_index(page);
__page_file_index  265 mm/page_io.c   	return (sector_t)__page_file_index(page) << (PAGE_SHIFT - 9);
__page_file_index 3504 mm/swapfile.c  EXPORT_SYMBOL_GPL(__page_file_index);