78 	struct page *backpage = monitor->back_page, *backpage2;  in cachefiles_read_reissue()  local
83 	       backpage->index, backpage->flags);  in cachefiles_read_reissue()
86 	if (backpage->mapping != bmapping) {  in cachefiles_read_reissue()
91 	backpage2 = find_get_page(bmapping, backpage->index);  in cachefiles_read_reissue()
97 	if (backpage != backpage2) {  in cachefiles_read_reissue()
108 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_reissue()
110 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
112 		if (PageError(backpage))  in cachefiles_read_reissue()
115 		if (PageUptodate(backpage))  in cachefiles_read_reissue()
119 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_reissue()
127 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
128 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_reissue()
129 		unlock_page(backpage);  in cachefiles_read_reissue()
137 	unlock_page(backpage);  in cachefiles_read_reissue()
232 	struct page *newpage, *backpage;  in cachefiles_read_backing_file_one()  local
254 		backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file_one()
255 		if (backpage)  in cachefiles_read_backing_file_one()
278 	backpage = newpage;  in cachefiles_read_backing_file_one()
282 	ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file_one()
292 	page_cache_get(backpage);  in cachefiles_read_backing_file_one()
293 	monitor->back_page = backpage;  in cachefiles_read_backing_file_one()
294 	monitor->monitor.private = backpage;  in cachefiles_read_backing_file_one()
295 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file_one()
301 	if (trylock_page(backpage)) {  in cachefiles_read_backing_file_one()
302 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
303 		unlock_page(backpage);  in cachefiles_read_backing_file_one()
317 	if (PageError(backpage))  in cachefiles_read_backing_file_one()
320 	if (PageUptodate(backpage))  in cachefiles_read_backing_file_one()
323 	if (!trylock_page(backpage))  in cachefiles_read_backing_file_one()
325 	_debug("read %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
335 	copy_highpage(netpage, backpage);  in cachefiles_read_backing_file_one()
344 	if (backpage)  in cachefiles_read_backing_file_one()
345 		page_cache_release(backpage);  in cachefiles_read_backing_file_one()
472 	struct page *newpage = NULL, *netpage, *_n, *backpage = NULL;  in cachefiles_read_backing_file()  local
494 			backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file()
495 			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()
547 		page_cache_get(backpage);  in cachefiles_read_backing_file()
548 		monitor->back_page = backpage;  in cachefiles_read_backing_file()
549 		monitor->monitor.private = backpage;  in cachefiles_read_backing_file()
550 		add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file()
556 		if (trylock_page(backpage)) {  in cachefiles_read_backing_file()
557 			_debug("2unlock %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
558 			unlock_page(backpage);  in cachefiles_read_backing_file()
561 		page_cache_release(backpage);  in cachefiles_read_backing_file()
562 		backpage = NULL;  in cachefiles_read_backing_file()
571 		_debug("- present %p", backpage);  in cachefiles_read_backing_file()
573 		if (PageError(backpage))  in cachefiles_read_backing_file()
576 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
579 		_debug("- not ready %p{%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
581 		if (!trylock_page(backpage))  in cachefiles_read_backing_file()
584 		if (PageError(backpage)) {  in cachefiles_read_backing_file()
585 			_debug("error %lx", backpage->flags);  in cachefiles_read_backing_file()
586 			unlock_page(backpage);  in cachefiles_read_backing_file()
590 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
600 		_debug("uptodate %lx", backpage->flags);  in cachefiles_read_backing_file()
601 		unlock_page(backpage);  in cachefiles_read_backing_file()
616 		copy_highpage(netpage, backpage);  in cachefiles_read_backing_file()
618 		page_cache_release(backpage);  in cachefiles_read_backing_file()
619 		backpage = NULL;  in cachefiles_read_backing_file()
641 	if (backpage)  in cachefiles_read_backing_file()
642 		page_cache_release(backpage);  in cachefiles_read_backing_file()