407 	if (!ext4_inode_block_valid(inode, map->m_pblk, map->m_len)) {  in __check_block_validity()
411 				 map->m_pblk, map->m_len);  in __check_block_validity()
470 		       inode->i_ino, es_map->m_lblk, es_map->m_len,  in ext4_map_blocks_es_recheck()
472 		       map->m_len, map->m_pblk, map->m_flags,  in ext4_map_blocks_es_recheck()
514 		  flags, map->m_len, (unsigned long) map->m_lblk);  in ext4_map_blocks()
519 	if (unlikely(map->m_len > INT_MAX))  in ext4_map_blocks()
520 		map->m_len = INT_MAX;  in ext4_map_blocks()
535 			if (retval > map->m_len)  in ext4_map_blocks()
536 				retval = map->m_len;  in ext4_map_blocks()
537 			map->m_len = retval;  in ext4_map_blocks()
541 			if (retval > map->m_len)  in ext4_map_blocks()
542 				retval = map->m_len;  in ext4_map_blocks()
543 			map->m_len = retval;  in ext4_map_blocks()
577 		if (unlikely(retval != map->m_len)) {  in ext4_map_blocks()
581 				     inode->i_ino, retval, map->m_len);  in ext4_map_blocks()
590 				       map->m_lblk + map->m_len - 1))  in ext4_map_blocks()
593 					    map->m_len, map->m_pblk, status);  in ext4_map_blocks()
672 		if (unlikely(retval != map->m_len)) {  in ext4_map_blocks()
676 				     inode->i_ino, retval, map->m_len);  in ext4_map_blocks()
691 						 map->m_pblk, map->m_len);  in ext4_map_blocks()
712 				       map->m_lblk + map->m_len - 1))  in ext4_map_blocks()
714 		ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len,  in ext4_map_blocks()
741 			loff_t length = (loff_t)map->m_len << inode->i_blkbits;  in ext4_map_blocks()
756 					map->m_lblk + map->m_len - 1);  in ext4_map_blocks()
800 	map.m_len = bh->b_size >> inode->i_blkbits;  in _ext4_get_block()
807 		bh->b_size = inode->i_sb->s_blocksize * map.m_len;  in _ext4_get_block()
811 		bh->b_size = inode->i_sb->s_blocksize * map.m_len;  in _ext4_get_block()
857 	map.m_len = 1;  in ext4_getblk()
1735 	ext_debug(inode, "max_blocks %u, logical block %lu\n", map->m_len,  in ext4_da_map_blocks()
1759 		if (retval > map->m_len)  in ext4_da_map_blocks()
1760 			retval = map->m_len;  in ext4_da_map_blocks()
1761 		map->m_len = retval;  in ext4_da_map_blocks()
1809 		if (unlikely(retval != map->m_len)) {  in ext4_da_map_blocks()
1813 				     inode->i_ino, retval, map->m_len);  in ext4_da_map_blocks()
1819 		ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len,  in ext4_da_map_blocks()
1853 	map.m_len = 1;  in ext4_da_get_block_prep()
2161 		if (map->m_len == 0)  in mpage_add_bh_to_extent()
2167 	if (map->m_len == 0) {  in mpage_add_bh_to_extent()
2172 		map->m_len = 1;  in mpage_add_bh_to_extent()
2178 	if (map->m_len >= MAX_WRITEPAGES_EXTENT_LEN)  in mpage_add_bh_to_extent()
2182 	if (lblk == map->m_lblk + map->m_len &&  in mpage_add_bh_to_extent()
2184 		map->m_len++;  in mpage_add_bh_to_extent()
2224 			if (mpd->map.m_len)  in mpage_process_page_bufs()
2234 	if (mpd->map.m_len == 0) {  in mpage_process_page_bufs()
2278 		if (lblk >= mpd->map.m_lblk + mpd->map.m_len) {  in mpage_process_page()
2283 			mpd->map.m_len = 0;  in mpage_process_page()
2290 			if (!err && mpd->map.m_len && mpd->map.m_lblk > lblk) {  in mpage_process_page()
2344 	end = (mpd->map.m_lblk + mpd->map.m_len - 1) >> bpp_bits;  in mpage_map_and_submit_buffers()
2373 	mpd->map.m_len = 0;  in mpage_map_and_submit_buffers()
2425 	BUG_ON(map->m_len == 0);  in mpage_map_one_extent()
2490 				 (unsigned)map->m_len, -err);  in mpage_map_and_submit_extent()
2508 	} while (map->m_len);  in mpage_map_and_submit_extent()
2592 	mpd->map.m_len = 0;  in mpage_prepare_extent_to_map()
2615 			if (mpd->map.m_len > 0 && mpd->next_page != page->index)  in mpage_prepare_extent_to_map()
2653 			if (mpd->map.m_len == 0)  in mpage_prepare_extent_to_map()
2833 		if (!ret && mpd.map.m_len)  in ext4_writepages()
3339 	iomap->length = (u64) map->m_len << blkbits;  in ext4_set_iomap()
3381 	if (map->m_len > DIO_MAX_BLOCKS)  in ext4_iomap_alloc()
3382 		map->m_len = DIO_MAX_BLOCKS;  in ext4_iomap_alloc()
3383 	dio_credits = ext4_chunk_trans_blocks(inode, map->m_len);  in ext4_iomap_alloc()
3449 	map.m_len = min_t(loff_t, (offset + length - 1) >> blkbits,  in ext4_iomap_begin()
3477 	map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len);  in ext4_iomap_begin()
3530 	ext4_lblk_t offset = 0, end = map->m_lblk + map->m_len - 1;  in ext4_iomap_is_delalloc()
3539 		map->m_len = es.es_lblk - map->m_lblk;  in ext4_iomap_is_delalloc()
3544 	map->m_len = es.es_len - offset;  in ext4_iomap_is_delalloc()
3574 	map.m_len = min_t(loff_t, (offset + length - 1) >> blkbits,  in ext4_iomap_begin_report()