81 	struct page *backpage = monitor->back_page, *backpage2;  in cachefiles_read_reissue()  local
86 	       backpage->index, backpage->flags);  in cachefiles_read_reissue()
89 	if (backpage->mapping != bmapping) {  in cachefiles_read_reissue()
94 	backpage2 = find_get_page(bmapping, backpage->index);  in cachefiles_read_reissue()
100 	if (backpage != backpage2) {  in cachefiles_read_reissue()
111 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_reissue()
113 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
115 		if (PageError(backpage))  in cachefiles_read_reissue()
118 		if (PageUptodate(backpage))  in cachefiles_read_reissue()
122 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_reissue()
130 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
131 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_reissue()
132 		unlock_page(backpage);  in cachefiles_read_reissue()
140 	unlock_page(backpage);  in cachefiles_read_reissue()
236 	struct page *newpage, *backpage;  in cachefiles_read_backing_file_one()  local
258 		backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file_one()
259 		if (backpage)  in cachefiles_read_backing_file_one()
281 	backpage = newpage;  in cachefiles_read_backing_file_one()
285 	ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file_one()
295 	get_page(backpage);  in cachefiles_read_backing_file_one()
296 	monitor->back_page = backpage;  in cachefiles_read_backing_file_one()
297 	monitor->monitor.private = backpage;  in cachefiles_read_backing_file_one()
298 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file_one()
304 	if (trylock_page(backpage)) {  in cachefiles_read_backing_file_one()
305 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
306 		unlock_page(backpage);  in cachefiles_read_backing_file_one()
320 	if (PageError(backpage))  in cachefiles_read_backing_file_one()
323 	if (PageUptodate(backpage))  in cachefiles_read_backing_file_one()
326 	if (!trylock_page(backpage))  in cachefiles_read_backing_file_one()
328 	_debug("read %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
338 	copy_highpage(netpage, backpage);  in cachefiles_read_backing_file_one()
347 	if (backpage)  in cachefiles_read_backing_file_one()
348 		put_page(backpage);  in cachefiles_read_backing_file_one()
473 	struct page *newpage = NULL, *netpage, *_n, *backpage = NULL;  in cachefiles_read_backing_file()  local
495 			backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file()
496 			if (backpage)  in cachefiles_read_backing_file()
519 		backpage = newpage;  in cachefiles_read_backing_file()
523 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file()
536 				put_page(backpage);  in cachefiles_read_backing_file()
537 				backpage = NULL;  in cachefiles_read_backing_file()
550 		get_page(backpage);  in cachefiles_read_backing_file()
551 		monitor->back_page = backpage;  in cachefiles_read_backing_file()
552 		monitor->monitor.private = backpage;  in cachefiles_read_backing_file()
553 		add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file()
559 		if (trylock_page(backpage)) {  in cachefiles_read_backing_file()
560 			_debug("2unlock %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
561 			unlock_page(backpage);  in cachefiles_read_backing_file()
564 		put_page(backpage);  in cachefiles_read_backing_file()
565 		backpage = NULL;  in cachefiles_read_backing_file()
574 		_debug("- present %p", backpage);  in cachefiles_read_backing_file()
576 		if (PageError(backpage))  in cachefiles_read_backing_file()
579 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
582 		_debug("- not ready %p{%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
584 		if (!trylock_page(backpage))  in cachefiles_read_backing_file()
587 		if (PageError(backpage)) {  in cachefiles_read_backing_file()
588 			_debug("error %lx", backpage->flags);  in cachefiles_read_backing_file()
589 			unlock_page(backpage);  in cachefiles_read_backing_file()
593 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
603 		_debug("uptodate %lx", backpage->flags);  in cachefiles_read_backing_file()
604 		unlock_page(backpage);  in cachefiles_read_backing_file()
612 				put_page(backpage);  in cachefiles_read_backing_file()
613 				backpage = NULL;  in cachefiles_read_backing_file()
622 		copy_highpage(netpage, backpage);  in cachefiles_read_backing_file()
624 		put_page(backpage);  in cachefiles_read_backing_file()
625 		backpage = NULL;  in cachefiles_read_backing_file()
647 	if (backpage)  in cachefiles_read_backing_file()
648 		put_page(backpage);  in cachefiles_read_backing_file()