linux-master/fs/direct-io.c

100 	struct page *cur_page;		/* The page */
683  * Attempt to put the current chunk of 'cur_page' into the current BIO.  If
693 	ret = bio_add_page(sdio->bio, sdio->cur_page,
701 		dio_pin_page(dio, sdio->cur_page);
712  * Put cur_page under IO.  The section of cur_page which is described by
713  * cur_page_offset,cur_page_len is put into a BIO.  The section of cur_page
718  * The caller of this function is responsible for removing cur_page from the
804 	if (sdio->cur_page == page &&
815 	if (sdio->cur_page) {
817 		dio_unpin_page(dio, sdio->cur_page);
818 		sdio->cur_page = NULL;
824 	sdio->cur_page = page;
838 		dio_unpin_page(dio, sdio->cur_page);
839 		sdio->cur_page = NULL;
1267 	if (sdio.cur_page) {
1273 		dio_unpin_page(dio, sdio.cur_page);
1274 		sdio.cur_page = NULL;