788 static void handle_write_error(struct address_space *mapping,  in handle_write_error()  argument
792 	if (page_mapping(page) == mapping)  in handle_write_error()
793 		mapping_set_error(mapping, error);  in handle_write_error()
813 static pageout_t pageout(struct page *page, struct address_space *mapping)  in pageout()  argument
833 	if (!mapping) {  in pageout()
847 	if (mapping->a_ops->writepage == NULL)  in pageout()
849 	if (!may_write_to_inode(mapping->host))  in pageout()
863 		res = mapping->a_ops->writepage(page, &wbc);  in pageout()
865 			handle_write_error(mapping, page, res);  in pageout()
887 static int __remove_mapping(struct address_space *mapping, struct page *page,  in __remove_mapping()  argument
895 	BUG_ON(mapping != page_mapping(page));  in __remove_mapping()
897 	xa_lock_irqsave(&mapping->i_pages, flags);  in __remove_mapping()
935 		if (reclaimed && !mapping_exiting(mapping))  in __remove_mapping()
938 		xa_unlock_irqrestore(&mapping->i_pages, flags);  in __remove_mapping()
943 		freepage = mapping->a_ops->freepage;  in __remove_mapping()
961 		    !mapping_exiting(mapping) && !dax_mapping(mapping))  in __remove_mapping()
964 		xa_unlock_irqrestore(&mapping->i_pages, flags);  in __remove_mapping()
973 	xa_unlock_irqrestore(&mapping->i_pages, flags);  in __remove_mapping()
983 int remove_mapping(struct address_space *mapping, struct page *page)  in remove_mapping()  argument
985 	if (__remove_mapping(mapping, page, false, NULL)) {  in remove_mapping()
1093 	struct address_space *mapping;  in page_check_dirty_writeback()  local
1114 	mapping = page_mapping(page);  in page_check_dirty_writeback()
1115 	if (mapping && mapping->a_ops->is_dirty_writeback)  in page_check_dirty_writeback()
1116 		mapping->a_ops->is_dirty_writeback(page, dirty, writeback);  in page_check_dirty_writeback()
1138 		struct address_space *mapping;  in shrink_page_list()  local
1187 		mapping = page_mapping(page);  in shrink_page_list()
1188 		if (((dirty || writeback) && mapping &&  in shrink_page_list()
1189 		     inode_write_congested(mapping->host)) ||  in shrink_page_list()
1327 				mapping = page_mapping(page);  in shrink_page_list()
1406 			switch (pageout(page, mapping)) {  in shrink_page_list()
1427 				mapping = page_mapping(page);  in shrink_page_list()
1457 			if (!mapping && page_count(page) == 1) {  in shrink_page_list()
1487 		} else if (!mapping || !__remove_mapping(mapping, page, true,  in shrink_page_list()
1639 			struct address_space *mapping;  in __isolate_lru_page()  local
1654 			mapping = page_mapping(page);  in __isolate_lru_page()
1655 			migrate_dirty = !mapping || mapping->a_ops->migratepage;  in __isolate_lru_page()