385 	if (!ext4_inode_block_valid(inode, map->m_pblk, map->m_len)) {  in __check_block_validity()
389 				 map->m_pblk, map->m_len);  in __check_block_validity()
448 		       inode->i_ino, es_map->m_lblk, es_map->m_len,  in ext4_map_blocks_es_recheck()
450 		       map->m_len, map->m_pblk, map->m_flags,  in ext4_map_blocks_es_recheck()
470 	if (unlikely(retval != map->m_len)) {  in ext4_map_query_blocks()
474 			     inode->i_ino, retval, map->m_len);  in ext4_map_query_blocks()
480 	ext4_es_insert_extent(inode, map->m_lblk, map->m_len,  in ext4_map_query_blocks()
521 		  flags, map->m_len, (unsigned long) map->m_lblk);  in ext4_map_blocks()
526 	if (unlikely(map->m_len > INT_MAX))  in ext4_map_blocks()
527 		map->m_len = INT_MAX;  in ext4_map_blocks()
542 			if (retval > map->m_len)  in ext4_map_blocks()
543 				retval = map->m_len;  in ext4_map_blocks()
544 			map->m_len = retval;  in ext4_map_blocks()
548 			if (retval > map->m_len)  in ext4_map_blocks()
549 				retval = map->m_len;  in ext4_map_blocks()
550 			map->m_len = retval;  in ext4_map_blocks()
584 		if (unlikely(retval != map->m_len)) {  in ext4_map_blocks()
588 				     inode->i_ino, retval, map->m_len);  in ext4_map_blocks()
597 				       map->m_lblk + map->m_len - 1))  in ext4_map_blocks()
599 		ext4_es_insert_extent(inode, map->m_lblk, map->m_len,  in ext4_map_blocks()
667 		if (unlikely(retval != map->m_len)) {  in ext4_map_blocks()
671 				     inode->i_ino, retval, map->m_len);  in ext4_map_blocks()
686 						 map->m_pblk, map->m_len);  in ext4_map_blocks()
707 				       map->m_lblk + map->m_len - 1))  in ext4_map_blocks()
709 		ext4_es_insert_extent(inode, map->m_lblk, map->m_len,  in ext4_map_blocks()
732 			loff_t length = (loff_t)map->m_len << inode->i_blkbits;  in ext4_map_blocks()
747 					map->m_lblk + map->m_len - 1);  in ext4_map_blocks()
790 	map.m_len = bh->b_size >> inode->i_blkbits;  in _ext4_get_block()
797 		bh->b_size = inode->i_sb->s_blocksize * map.m_len;  in _ext4_get_block()
801 		bh->b_size = inode->i_sb->s_blocksize * map.m_len;  in _ext4_get_block()
859 	map.m_len = 1;  in ext4_getblk()
1736 	ext_debug(inode, "max_blocks %u, logical block %lu\n", map->m_len,  in ext4_da_map_blocks()
1758 		if (retval > map->m_len)  in ext4_da_map_blocks()
1759 			retval = map->m_len;  in ext4_da_map_blocks()
1760 		map->m_len = retval;  in ext4_da_map_blocks()
1842 	map.m_len = 1;  in ext4_da_get_block_prep()
1940 		if (map->m_len == 0)  in mpage_add_bh_to_extent()
1946 	if (map->m_len == 0) {  in mpage_add_bh_to_extent()
1951 		map->m_len = 1;  in mpage_add_bh_to_extent()
1957 	if (map->m_len >= MAX_WRITEPAGES_EXTENT_LEN)  in mpage_add_bh_to_extent()
1961 	if (lblk == map->m_lblk + map->m_len &&  in mpage_add_bh_to_extent()
1963 		map->m_len++;  in mpage_add_bh_to_extent()
2003 			if (mpd->map.m_len)  in mpage_process_page_bufs()
2013 	if (mpd->map.m_len == 0) {  in mpage_process_page_bufs()
2059 		if (lblk >= mpd->map.m_lblk + mpd->map.m_len) {  in mpage_process_folio()
2064 			mpd->map.m_len = 0;  in mpage_process_folio()
2071 			if (!err && mpd->map.m_len && mpd->map.m_lblk > lblk) {  in mpage_process_folio()
2125 	end = (mpd->map.m_lblk + mpd->map.m_len - 1) >> bpp_bits;  in mpage_map_and_submit_buffers()
2155 	mpd->map.m_len = 0;  in mpage_map_and_submit_buffers()
2207 	BUG_ON(map->m_len == 0);  in mpage_map_one_extent()
2271 				 (unsigned)map->m_len, -err);  in mpage_map_and_submit_extent()
2289 	} while (map->m_len);  in mpage_map_and_submit_extent()
2414 	mpd->map.m_len = 0;  in mpage_prepare_extent_to_map()
2442 			    mpd->map.m_len >> (PAGE_SHIFT - blkbits))  in mpage_prepare_extent_to_map()
2446 			if (mpd->map.m_len > 0 && mpd->next_page != folio->index)  in mpage_prepare_extent_to_map()
2491 			if (mpd->map.m_len == 0)  in mpage_prepare_extent_to_map()
2710 		if (!ret && mpd->map.m_len)  in ext4_do_writepages()
3278 	iomap->length = (u64) map->m_len << blkbits;  in ext4_set_iomap()
3320 	if (map->m_len > DIO_MAX_BLOCKS)  in ext4_iomap_alloc()
3321 		map->m_len = DIO_MAX_BLOCKS;  in ext4_iomap_alloc()
3322 	dio_credits = ext4_chunk_trans_blocks(inode, map->m_len);  in ext4_iomap_alloc()
3388 	map.m_len = min_t(loff_t, (offset + length - 1) >> blkbits,  in ext4_iomap_begin()
3416 	map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len);  in ext4_iomap_begin()
3469 	ext4_lblk_t offset = 0, end = map->m_lblk + map->m_len - 1;  in ext4_iomap_is_delalloc()
3478 		map->m_len = es.es_lblk - map->m_lblk;  in ext4_iomap_is_delalloc()
3483 	map->m_len = es.es_len - offset;  in ext4_iomap_is_delalloc()
3513 	map.m_len = min_t(loff_t, (offset + length - 1) >> blkbits,  in ext4_iomap_begin_report()