581 static void handle_write_error(struct address_space *mapping,  in handle_write_error()  argument
585 	if (page_mapping(page) == mapping)  in handle_write_error()
586 		mapping_set_error(mapping, error);  in handle_write_error()
606 static pageout_t pageout(struct page *page, struct address_space *mapping,  in pageout()  argument
627 	if (!mapping) {  in pageout()
641 	if (mapping->a_ops->writepage == NULL)  in pageout()
643 	if (!may_write_to_inode(mapping->host, sc))  in pageout()
657 		res = mapping->a_ops->writepage(page, &wbc);  in pageout()
659 			handle_write_error(mapping, page, res);  in pageout()
681 static int __remove_mapping(struct address_space *mapping, struct page *page,  in __remove_mapping()  argument
688 	BUG_ON(mapping != page_mapping(page));  in __remove_mapping()
690 	spin_lock_irqsave(&mapping->tree_lock, flags);  in __remove_mapping()
732 		spin_unlock_irqrestore(&mapping->tree_lock, flags);  in __remove_mapping()
738 		freepage = mapping->a_ops->freepage;  in __remove_mapping()
756 		    !mapping_exiting(mapping) && !dax_mapping(mapping))  in __remove_mapping()
757 			shadow = workingset_eviction(mapping, page);  in __remove_mapping()
759 		spin_unlock_irqrestore(&mapping->tree_lock, flags);  in __remove_mapping()
768 	spin_unlock_irqrestore(&mapping->tree_lock, flags);  in __remove_mapping()
778 int remove_mapping(struct address_space *mapping, struct page *page)  in remove_mapping()  argument
780 	if (__remove_mapping(mapping, page, false)) {  in remove_mapping()
930 	struct address_space *mapping;  in page_check_dirty_writeback()  local
951 	mapping = page_mapping(page);  in page_check_dirty_writeback()
952 	if (mapping && mapping->a_ops->is_dirty_writeback)  in page_check_dirty_writeback()
953 		mapping->a_ops->is_dirty_writeback(page, dirty, writeback);  in page_check_dirty_writeback()
992 		struct address_space *mapping;  in shrink_page_list()  local
1043 		mapping = page_mapping(page);  in shrink_page_list()
1044 		if (((dirty || writeback) && mapping &&  in shrink_page_list()
1045 		     inode_write_congested(mapping->host)) ||  in shrink_page_list()
1181 				mapping = page_mapping(page);  in shrink_page_list()
1243 			switch (pageout(page, mapping, sc)) {  in shrink_page_list()
1262 				mapping = page_mapping(page);  in shrink_page_list()
1292 			if (!mapping && page_count(page) == 1) {  in shrink_page_list()
1321 		} else if (!mapping || !__remove_mapping(mapping, page, true))  in shrink_page_list()
1448 			struct address_space *mapping;  in __isolate_lru_page()  local
1463 			mapping = page_mapping(page);  in __isolate_lru_page()
1464 			migrate_dirty = !mapping || mapping->a_ops->migratepage;  in __isolate_lru_page()