123 				       u64 len, u64 orig_start, u64 block_start,
1119 		if (em->block_start >= EXTENT_MAP_LAST_BYTE) {  in get_extent_allocation_hint()
1122 			if (em && em->block_start < EXTENT_MAP_LAST_BYTE)  in get_extent_allocation_hint()
1123 				alloc_hint = em->block_start;  in get_extent_allocation_hint()
1127 			alloc_hint = em->block_start;  in get_extent_allocation_hint()
2564 	ASSERT(em->block_start < EXTENT_MAP_LAST_BYTE);  in split_zoned_em()
2576 	split_pre->block_start = em->block_start;  in split_zoned_em()
2597 		split_mid->block_start = em->block_start + pre;  in split_zoned_em()
2611 		split_post->block_start = em->block_start + em->len - post;  in split_zoned_em()
2810 		if (em->block_start != EXTENT_MAP_HOLE)  in btrfs_find_new_delalloc_bytes()
4932 	u64 block_start;  in btrfs_truncate_block()  local
4939 	block_start = round_down(from, blocksize);  in btrfs_truncate_block()
4940 	block_end = block_start + blocksize - 1;  in btrfs_truncate_block()
4942 	ret = btrfs_check_data_free_space(inode, &data_reserved, block_start,  in btrfs_truncate_block()
4945 		if (btrfs_check_nocow_lock(inode, block_start, &write_bytes, false) > 0) {  in btrfs_truncate_block()
4956 						       block_start, blocksize);  in btrfs_truncate_block()
4962 		btrfs_delalloc_release_space(inode, data_reserved, block_start,  in btrfs_truncate_block()
4995 	lock_extent(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
4997 	ordered = btrfs_lookup_ordered_extent(inode, block_start);  in btrfs_truncate_block()
4999 		unlock_extent(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
5007 	clear_extent_bit(&inode->io_tree, block_start, block_end,  in btrfs_truncate_block()
5011 	ret = btrfs_set_extent_delalloc(inode, block_start, block_end, 0,  in btrfs_truncate_block()
5014 		unlock_extent(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
5022 			memzero_page(page, (block_start - page_offset(page)),  in btrfs_truncate_block()
5025 			memzero_page(page, (block_start - page_offset(page)) + offset,  in btrfs_truncate_block()
5028 	btrfs_page_clear_checked(fs_info, page, block_start,  in btrfs_truncate_block()
5029 				 block_end + 1 - block_start);  in btrfs_truncate_block()
5030 	btrfs_page_set_dirty(fs_info, page, block_start, block_end + 1 - block_start);  in btrfs_truncate_block()
5031 	unlock_extent(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
5034 		set_extent_bit(&inode->io_tree, block_start, block_end,  in btrfs_truncate_block()
5043 					block_start, blocksize, true);  in btrfs_truncate_block()
5175 			hole_em->block_start = EXTENT_MAP_HOLE;  in btrfs_cont_expand()
6995 		else if (em->block_start == EXTENT_MAP_INLINE && page)  in btrfs_get_extent()
7100 		em->block_start = EXTENT_MAP_HOLE;  in btrfs_get_extent()
7155 	em->block_start = EXTENT_MAP_HOLE;  in btrfs_get_extent()
7186 						  const u64 block_start,  in btrfs_create_dio_extent()  argument
7196 		em = create_io_em(inode, start, len, orig_start, block_start,  in btrfs_create_dio_extent()
7203 	ret = btrfs_add_ordered_extent(inode, start, len, len, block_start,  in btrfs_create_dio_extent()
7482 				       u64 len, u64 orig_start, u64 block_start,  in create_io_em()  argument
7503 	em->block_start = block_start;  in create_io_em()
7536 	u64 block_start, orig_start, orig_block_len, ram_bytes;  in btrfs_get_blocks_direct_write()  local
7555 	     em->block_start != EXTENT_MAP_HOLE)) {  in btrfs_get_blocks_direct_write()
7561 		block_start = em->block_start + (start - em->start);  in btrfs_get_blocks_direct_write()
7565 			bg = btrfs_inc_nocow_writers(fs_info, block_start);  in btrfs_get_blocks_direct_write()
7590 					      orig_start, block_start,  in btrfs_get_blocks_direct_write()
7792 	    em->block_start == EXTENT_MAP_INLINE) {  in btrfs_dio_iomap_begin()
7886 	if ((em->block_start == EXTENT_MAP_HOLE) ||  in btrfs_dio_iomap_begin()
7891 		iomap->addr = em->block_start + (start - em->start);  in btrfs_dio_iomap_begin()
7898 	if (write && btrfs_use_zone_append(BTRFS_I(inode), em->block_start))  in btrfs_dio_iomap_begin()
10105 		em->block_start = ins.objectid;  in __btrfs_prealloc_file_range()
10655 	if (em->block_start == EXTENT_MAP_INLINE) {  in btrfs_encoded_read()
10676 	if (em->block_start == EXTENT_MAP_HOLE ||  in btrfs_encoded_read()
10683 		disk_bytenr = em->block_start;  in btrfs_encoded_read()
10702 		disk_bytenr = em->block_start + (start - em->start);  in btrfs_encoded_read()
11073 	u64 block_start;  member
11098 	first_ppage = ALIGN(bsi->block_start, PAGE_SIZE) >> PAGE_SHIFT;  in btrfs_add_swap_extent()
11099 	next_ppage = ALIGN_DOWN(bsi->block_start + bsi->block_len,  in btrfs_add_swap_extent()
11239 		if (em->block_start == EXTENT_MAP_HOLE) {  in btrfs_swap_activate()
11244 		if (em->block_start == EXTENT_MAP_INLINE) {  in btrfs_swap_activate()
11262 		logical_block_start = em->block_start + (start - em->start);  in btrfs_swap_activate()
11340 		    bsi.block_start + bsi.block_len == physical_block_start) {  in btrfs_swap_activate()
11349 			bsi.block_start = physical_block_start;  in btrfs_swap_activate()