85 	struct page *backpage = monitor->back_page, *backpage2;  in cachefiles_read_reissue()  local
90 	       backpage->index, backpage->flags);  in cachefiles_read_reissue()
93 	if (backpage->mapping != bmapping) {  in cachefiles_read_reissue()
98 	backpage2 = find_get_page(bmapping, backpage->index);  in cachefiles_read_reissue()
104 	if (backpage != backpage2) {  in cachefiles_read_reissue()
115 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_reissue()
117 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
119 		if (PageError(backpage))  in cachefiles_read_reissue()
122 		if (PageUptodate(backpage))  in cachefiles_read_reissue()
126 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_reissue()
134 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
135 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_reissue()
136 		unlock_page(backpage);  in cachefiles_read_reissue()
144 	unlock_page(backpage);  in cachefiles_read_reissue()
239 	struct page *newpage, *backpage;  in cachefiles_read_backing_file_one()  local
261 		backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file_one()
262 		if (backpage)  in cachefiles_read_backing_file_one()
284 	backpage = newpage;  in cachefiles_read_backing_file_one()
288 	ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file_one()
298 	get_page(backpage);  in cachefiles_read_backing_file_one()
299 	monitor->back_page = backpage;  in cachefiles_read_backing_file_one()
300 	monitor->monitor.private = backpage;  in cachefiles_read_backing_file_one()
301 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file_one()
307 	if (trylock_page(backpage)) {  in cachefiles_read_backing_file_one()
308 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
309 		unlock_page(backpage);  in cachefiles_read_backing_file_one()
323 	if (PageError(backpage))  in cachefiles_read_backing_file_one()
326 	if (PageUptodate(backpage))  in cachefiles_read_backing_file_one()
329 	if (!trylock_page(backpage))  in cachefiles_read_backing_file_one()
331 	_debug("read %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
341 	copy_highpage(netpage, backpage);  in cachefiles_read_backing_file_one()
350 	if (backpage)  in cachefiles_read_backing_file_one()
351 		put_page(backpage);  in cachefiles_read_backing_file_one()
475 	struct page *newpage = NULL, *netpage, *_n, *backpage = NULL;  in cachefiles_read_backing_file()  local
497 			backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file()
498 			if (backpage)  in cachefiles_read_backing_file()
521 		backpage = newpage;  in cachefiles_read_backing_file()
525 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file()
549 		get_page(backpage);  in cachefiles_read_backing_file()
550 		monitor->back_page = backpage;  in cachefiles_read_backing_file()
551 		monitor->monitor.private = backpage;  in cachefiles_read_backing_file()
552 		add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file()
558 		if (trylock_page(backpage)) {  in cachefiles_read_backing_file()
559 			_debug("2unlock %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
560 			unlock_page(backpage);  in cachefiles_read_backing_file()
563 		put_page(backpage);  in cachefiles_read_backing_file()
564 		backpage = NULL;  in cachefiles_read_backing_file()
573 		_debug("- present %p", backpage);  in cachefiles_read_backing_file()
575 		if (PageError(backpage))  in cachefiles_read_backing_file()
578 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
581 		_debug("- not ready %p{%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
583 		if (!trylock_page(backpage))  in cachefiles_read_backing_file()
586 		if (PageError(backpage)) {  in cachefiles_read_backing_file()
587 			_debug("error %lx", backpage->flags);  in cachefiles_read_backing_file()
588 			unlock_page(backpage);  in cachefiles_read_backing_file()
592 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
602 		_debug("uptodate %lx", backpage->flags);  in cachefiles_read_backing_file()
603 		unlock_page(backpage);  in cachefiles_read_backing_file()
618 		copy_highpage(netpage, backpage);  in cachefiles_read_backing_file()
620 		put_page(backpage);  in cachefiles_read_backing_file()
621 		backpage = NULL;  in cachefiles_read_backing_file()
643 	if (backpage)  in cachefiles_read_backing_file()
644 		put_page(backpage);  in cachefiles_read_backing_file()