633 			   struct buffer_head *map_bh)  in get_more_blocks()  argument
655 		map_bh->b_state = 0;  in get_more_blocks()
656 		map_bh->b_size = fs_count << i_blkbits;  in get_more_blocks()
677 						map_bh, create);  in get_more_blocks()
680 		dio->private = map_bh->b_private;  in get_more_blocks()
682 		if (ret == 0 && buffer_defer_completion(map_bh))  in get_more_blocks()
692 		sector_t start_sector, struct buffer_head *map_bh)  in dio_new_bio()  argument
703 	dio_bio_alloc(dio, sdio, map_bh->b_bdev, sector, nr_pages);  in dio_new_bio()
749 		struct buffer_head *map_bh)  in dio_send_cur_page()  argument
786 		ret = dio_new_bio(dio, sdio, sdio->cur_page_block, map_bh);  in dio_send_cur_page()
793 		ret = dio_new_bio(dio, sdio, sdio->cur_page_block, map_bh);  in dio_send_cur_page()
823 		    struct buffer_head *map_bh)  in submit_page_section()  argument
850 		ret = dio_send_cur_page(dio, sdio, map_bh);  in submit_page_section()
869 		ret = dio_send_cur_page(dio, sdio, map_bh);  in submit_page_section()
888 		int end, struct buffer_head *map_bh)  in dio_zero_block()  argument
896 	if (!sdio->blkfactor || !buffer_new(map_bh))  in dio_zero_block()
916 				sdio->next_block_for_io, map_bh))  in dio_zero_block()
939 			struct buffer_head *map_bh)  in do_direct_IO()  argument
970 				ret = get_more_blocks(dio, sdio, map_bh);  in do_direct_IO()
975 				if (!buffer_mapped(map_bh))  in do_direct_IO()
979 						map_bh->b_size >> blkbits;  in do_direct_IO()
981 					map_bh->b_blocknr << sdio->blkfactor;  in do_direct_IO()
982 				if (buffer_new(map_bh)) {  in do_direct_IO()
984 						map_bh->b_bdev,  in do_direct_IO()
985 						map_bh->b_blocknr,  in do_direct_IO()
986 						map_bh->b_size >> i_blkbits);  in do_direct_IO()
1006 				if (!buffer_new(map_bh))  in do_direct_IO()
1012 			if (!buffer_mapped(map_bh)) {  in do_direct_IO()
1046 				dio_zero_block(dio, sdio, 0, map_bh);  in do_direct_IO()
1063 				sdio->boundary = buffer_boundary(map_bh);  in do_direct_IO()
1068 						  map_bh);  in do_direct_IO()
1154 	struct buffer_head map_bh = { 0, };  in do_blockdev_direct_IO()  local
1287 	retval = do_direct_IO(dio, &sdio, &map_bh);  in do_blockdev_direct_IO()
1302 	dio_zero_block(dio, &sdio, 1, &map_bh);  in do_blockdev_direct_IO()
1307 		ret2 = dio_send_cur_page(dio, &sdio, &map_bh);  in do_blockdev_direct_IO()