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()
235 	struct page *newpage, *backpage;  in cachefiles_read_backing_file_one()  local
257 		backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file_one()
258 		if (backpage)  in cachefiles_read_backing_file_one()
280 	backpage = newpage;  in cachefiles_read_backing_file_one()
284 	ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file_one()
294 	get_page(backpage);  in cachefiles_read_backing_file_one()
295 	monitor->back_page = backpage;  in cachefiles_read_backing_file_one()
296 	monitor->monitor.private = backpage;  in cachefiles_read_backing_file_one()
297 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file_one()
303 	if (trylock_page(backpage)) {  in cachefiles_read_backing_file_one()
304 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
305 		unlock_page(backpage);  in cachefiles_read_backing_file_one()
319 	if (PageError(backpage))  in cachefiles_read_backing_file_one()
322 	if (PageUptodate(backpage))  in cachefiles_read_backing_file_one()
325 	if (!trylock_page(backpage))  in cachefiles_read_backing_file_one()
327 	_debug("read %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
337 	copy_highpage(netpage, backpage);  in cachefiles_read_backing_file_one()
346 	if (backpage)  in cachefiles_read_backing_file_one()
347 		put_page(backpage);  in cachefiles_read_backing_file_one()
471 	struct page *newpage = NULL, *netpage, *_n, *backpage = NULL;  in cachefiles_read_backing_file()  local
493 			backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file()
494 			if (backpage)  in cachefiles_read_backing_file()
517 		backpage = newpage;  in cachefiles_read_backing_file()
521 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file()
534 				put_page(backpage);  in cachefiles_read_backing_file()
535 				backpage = NULL;  in cachefiles_read_backing_file()
548 		get_page(backpage);  in cachefiles_read_backing_file()
549 		monitor->back_page = backpage;  in cachefiles_read_backing_file()
550 		monitor->monitor.private = backpage;  in cachefiles_read_backing_file()
551 		add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file()
557 		if (trylock_page(backpage)) {  in cachefiles_read_backing_file()
558 			_debug("2unlock %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
559 			unlock_page(backpage);  in cachefiles_read_backing_file()
562 		put_page(backpage);  in cachefiles_read_backing_file()
563 		backpage = NULL;  in cachefiles_read_backing_file()
572 		_debug("- present %p", backpage);  in cachefiles_read_backing_file()
574 		if (PageError(backpage))  in cachefiles_read_backing_file()
577 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
580 		_debug("- not ready %p{%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
582 		if (!trylock_page(backpage))  in cachefiles_read_backing_file()
585 		if (PageError(backpage)) {  in cachefiles_read_backing_file()
586 			_debug("error %lx", backpage->flags);  in cachefiles_read_backing_file()
587 			unlock_page(backpage);  in cachefiles_read_backing_file()
591 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
601 		_debug("uptodate %lx", backpage->flags);  in cachefiles_read_backing_file()
602 		unlock_page(backpage);  in cachefiles_read_backing_file()
610 				put_page(backpage);  in cachefiles_read_backing_file()
611 				backpage = NULL;  in cachefiles_read_backing_file()
620 		copy_highpage(netpage, backpage);  in cachefiles_read_backing_file()
622 		put_page(backpage);  in cachefiles_read_backing_file()
623 		backpage = NULL;  in cachefiles_read_backing_file()
645 	if (backpage)  in cachefiles_read_backing_file()
646 		put_page(backpage);  in cachefiles_read_backing_file()