88 				       u64 orig_start, u64 block_start,
934 		if (em->block_start >= EXTENT_MAP_LAST_BYTE) {  in get_extent_allocation_hint()
937 			if (em && em->block_start < EXTENT_MAP_LAST_BYTE)  in get_extent_allocation_hint()
938 				alloc_hint = em->block_start;  in get_extent_allocation_hint()
942 			alloc_hint = em->block_start;  in get_extent_allocation_hint()
4947 	u64 block_start;  in btrfs_truncate_block()  local
4954 	block_start = round_down(from, blocksize);  in btrfs_truncate_block()
4955 	block_end = block_start + blocksize - 1;  in btrfs_truncate_block()
4958 					   block_start, blocksize);  in btrfs_truncate_block()
4966 					     block_start, blocksize, true);  in btrfs_truncate_block()
4987 	lock_extent_bits(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
4990 	ordered = btrfs_lookup_ordered_extent(inode, block_start);  in btrfs_truncate_block()
4992 		unlock_extent_cached(io_tree, block_start, block_end,  in btrfs_truncate_block()
5001 	clear_extent_bit(&BTRFS_I(inode)->io_tree, block_start, block_end,  in btrfs_truncate_block()
5005 	ret = btrfs_set_extent_delalloc(inode, block_start, block_end, 0,  in btrfs_truncate_block()
5008 		unlock_extent_cached(io_tree, block_start, block_end,  in btrfs_truncate_block()
5018 			memset(kaddr + (block_start - page_offset(page)),  in btrfs_truncate_block()
5021 			memset(kaddr + (block_start - page_offset(page)) +  offset,  in btrfs_truncate_block()
5028 	unlock_extent_cached(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
5032 		btrfs_delalloc_release_space(inode, data_reserved, block_start,  in btrfs_truncate_block()
5152 			hole_em->block_start = EXTENT_MAP_HOLE;  in btrfs_cont_expand()
6941 		else if (em->block_start == EXTENT_MAP_INLINE && page)  in btrfs_get_extent()
7052 		em->block_start = EXTENT_MAP_HOLE;  in btrfs_get_extent()
7113 	em->block_start = EXTENT_MAP_HOLE;  in btrfs_get_extent()
7161 	if (em->block_start != EXTENT_MAP_HOLE &&  in btrfs_get_extent_fiemap()
7241 			em->block_start = hole_em->block_start;  in btrfs_get_extent_fiemap()
7253 			em->block_start = EXTENT_MAP_DELALLOC;  in btrfs_get_extent_fiemap()
7273 						  const u64 block_start,  in btrfs_create_dio_extent()  argument
7284 				  block_start, block_len, orig_block_len,  in btrfs_create_dio_extent()
7291 	ret = btrfs_add_ordered_extent_dio(inode, start, block_start,  in btrfs_create_dio_extent()
7563 				       u64 orig_start, u64 block_start,  in create_io_em()  argument
7587 	em->block_start = block_start;  in create_io_em()
7627 	if (em->block_start == EXTENT_MAP_HOLE ||  in btrfs_get_blocks_direct_read()
7633 	bh_result->b_blocknr = (em->block_start + (start - em->start)) >>  in btrfs_get_blocks_direct_read()
7663 	     em->block_start != EXTENT_MAP_HOLE)) {  in btrfs_get_blocks_direct_write()
7665 		u64 block_start, orig_start, orig_block_len, ram_bytes;  in btrfs_get_blocks_direct_write()  local
7672 		block_start = em->block_start + (start - em->start);  in btrfs_get_blocks_direct_write()
7676 		    btrfs_inc_nocow_writers(fs_info, block_start)) {  in btrfs_get_blocks_direct_write()
7680 						      orig_start, block_start,  in btrfs_get_blocks_direct_write()
7683 			btrfs_dec_nocow_writers(fs_info, block_start);  in btrfs_get_blocks_direct_write()
7716 	bh_result->b_blocknr = (em->block_start + (start - em->start)) >>  in btrfs_get_blocks_direct_write()
7799 	    em->block_start == EXTENT_MAP_INLINE) {  in btrfs_get_blocks_direct()
10449 		em->block_start = ins.objectid;  in __btrfs_prealloc_file_range()
10693 	u64 block_start;  member
10708 	first_ppage = ALIGN(bsi->block_start, PAGE_SIZE) >> PAGE_SHIFT;  in btrfs_add_swap_extent()
10709 	next_ppage = ALIGN_DOWN(bsi->block_start + bsi->block_len,  in btrfs_add_swap_extent()
10818 		if (em->block_start == EXTENT_MAP_HOLE) {  in btrfs_swap_activate()
10823 		if (em->block_start == EXTENT_MAP_INLINE) {  in btrfs_swap_activate()
10841 		logical_block_start = em->block_start + (start - em->start);  in btrfs_swap_activate()
10908 		    bsi.block_start + bsi.block_len == physical_block_start) {  in btrfs_swap_activate()
10917 			bsi.block_start = physical_block_start;  in btrfs_swap_activate()