77 	struct page *backpage = monitor->back_page, *backpage2;  in cachefiles_read_reissue()  local
82 	       backpage->index, backpage->flags);  in cachefiles_read_reissue()
85 	if (backpage->mapping != bmapping) {  in cachefiles_read_reissue()
90 	backpage2 = find_get_page(bmapping, backpage->index);  in cachefiles_read_reissue()
96 	if (backpage != backpage2) {  in cachefiles_read_reissue()
107 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_reissue()
109 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
111 		if (PageError(backpage))  in cachefiles_read_reissue()
114 		if (PageUptodate(backpage))  in cachefiles_read_reissue()
118 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_reissue()
126 	if (trylock_page(backpage)) {  in cachefiles_read_reissue()
127 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_reissue()
128 		unlock_page(backpage);  in cachefiles_read_reissue()
136 	unlock_page(backpage);  in cachefiles_read_reissue()
232 	struct page *newpage, *backpage;  in cachefiles_read_backing_file_one()  local
256 		backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file_one()
257 		if (backpage)  in cachefiles_read_backing_file_one()
279 	backpage = newpage;  in cachefiles_read_backing_file_one()
282 	page_cache_get(backpage);  in cachefiles_read_backing_file_one()
283 	pagevec_add(pagevec, backpage);  in cachefiles_read_backing_file_one()
287 	ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file_one()
297 	page_cache_get(backpage);  in cachefiles_read_backing_file_one()
298 	monitor->back_page = backpage;  in cachefiles_read_backing_file_one()
299 	monitor->monitor.private = backpage;  in cachefiles_read_backing_file_one()
300 	add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file_one()
306 	if (trylock_page(backpage)) {  in cachefiles_read_backing_file_one()
307 		_debug("jumpstart %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
308 		unlock_page(backpage);  in cachefiles_read_backing_file_one()
322 	if (PageError(backpage))  in cachefiles_read_backing_file_one()
325 	if (PageUptodate(backpage))  in cachefiles_read_backing_file_one()
328 	if (!trylock_page(backpage))  in cachefiles_read_backing_file_one()
330 	_debug("read %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file_one()
341 	copy_highpage(netpage, backpage);  in cachefiles_read_backing_file_one()
349 	if (backpage)  in cachefiles_read_backing_file_one()
350 		page_cache_release(backpage);  in cachefiles_read_backing_file_one()
474 	struct page *newpage = NULL, *netpage, *_n, *backpage = NULL;  in cachefiles_read_backing_file()  local
498 			backpage = find_get_page(bmapping, netpage->index);  in cachefiles_read_backing_file()
499 			if (backpage)  in cachefiles_read_backing_file()
521 		backpage = newpage;  in cachefiles_read_backing_file()
524 		page_cache_get(backpage);  in cachefiles_read_backing_file()
525 		if (!pagevec_add(&lru_pvec, backpage))  in cachefiles_read_backing_file()
529 		ret = bmapping->a_ops->readpage(NULL, backpage);  in cachefiles_read_backing_file()
556 		page_cache_get(backpage);  in cachefiles_read_backing_file()
557 		monitor->back_page = backpage;  in cachefiles_read_backing_file()
558 		monitor->monitor.private = backpage;  in cachefiles_read_backing_file()
559 		add_page_wait_queue(backpage, &monitor->monitor);  in cachefiles_read_backing_file()
565 		if (trylock_page(backpage)) {  in cachefiles_read_backing_file()
566 			_debug("2unlock %p {%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
567 			unlock_page(backpage);  in cachefiles_read_backing_file()
570 		page_cache_release(backpage);  in cachefiles_read_backing_file()
571 		backpage = NULL;  in cachefiles_read_backing_file()
580 		_debug("- present %p", backpage);  in cachefiles_read_backing_file()
582 		if (PageError(backpage))  in cachefiles_read_backing_file()
585 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
588 		_debug("- not ready %p{%lx}", backpage, backpage->flags);  in cachefiles_read_backing_file()
590 		if (!trylock_page(backpage))  in cachefiles_read_backing_file()
593 		if (PageError(backpage)) {  in cachefiles_read_backing_file()
594 			_debug("error %lx", backpage->flags);  in cachefiles_read_backing_file()
595 			unlock_page(backpage);  in cachefiles_read_backing_file()
599 		if (PageUptodate(backpage))  in cachefiles_read_backing_file()
609 		_debug("uptodate %lx", backpage->flags);  in cachefiles_read_backing_file()
610 		unlock_page(backpage);  in cachefiles_read_backing_file()
624 		copy_highpage(netpage, backpage);  in cachefiles_read_backing_file()
626 		page_cache_release(backpage);  in cachefiles_read_backing_file()
627 		backpage = NULL;  in cachefiles_read_backing_file()
654 	if (backpage)  in cachefiles_read_backing_file()
655 		page_cache_release(backpage);  in cachefiles_read_backing_file()