89 				       u64 len, u64 orig_start, u64 block_start,
947 		if (em->block_start >= EXTENT_MAP_LAST_BYTE) {  in get_extent_allocation_hint()
950 			if (em && em->block_start < EXTENT_MAP_LAST_BYTE)  in get_extent_allocation_hint()
951 				alloc_hint = em->block_start;  in get_extent_allocation_hint()
955 			alloc_hint = em->block_start;  in get_extent_allocation_hint()
2273 		if (em->block_start != EXTENT_MAP_HOLE)  in btrfs_find_new_delalloc_bytes()
4588 	u64 block_start;  in btrfs_truncate_block()  local
4595 	block_start = round_down(from, blocksize);  in btrfs_truncate_block()
4596 	block_end = block_start + blocksize - 1;  in btrfs_truncate_block()
4599 					  block_start, blocksize);  in btrfs_truncate_block()
4601 		if (btrfs_check_nocow_lock(BTRFS_I(inode), block_start,  in btrfs_truncate_block()
4613 					data_reserved, block_start, blocksize);  in btrfs_truncate_block()
4620 					     block_start, blocksize, true);  in btrfs_truncate_block()
4641 	lock_extent_bits(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
4644 	ordered = btrfs_lookup_ordered_extent(BTRFS_I(inode), block_start);  in btrfs_truncate_block()
4646 		unlock_extent_cached(io_tree, block_start, block_end,  in btrfs_truncate_block()
4655 	clear_extent_bit(&BTRFS_I(inode)->io_tree, block_start, block_end,  in btrfs_truncate_block()
4659 	ret = btrfs_set_extent_delalloc(BTRFS_I(inode), block_start, block_end, 0,  in btrfs_truncate_block()
4662 		unlock_extent_cached(io_tree, block_start, block_end,  in btrfs_truncate_block()
4672 			memset(kaddr + (block_start - page_offset(page)),  in btrfs_truncate_block()
4675 			memset(kaddr + (block_start - page_offset(page)) +  offset,  in btrfs_truncate_block()
4682 	unlock_extent_cached(io_tree, block_start, block_end, &cached_state);  in btrfs_truncate_block()
4685 		set_extent_bit(&BTRFS_I(inode)->io_tree, block_start,  in btrfs_truncate_block()
4696 					block_start, blocksize, true);  in btrfs_truncate_block()
4825 			hole_em->block_start = EXTENT_MAP_HOLE;  in btrfs_cont_expand()
6618 		else if (em->block_start == EXTENT_MAP_INLINE && page)  in btrfs_get_extent()
6721 		em->block_start = EXTENT_MAP_HOLE;  in btrfs_get_extent()
6779 	em->block_start = EXTENT_MAP_HOLE;  in btrfs_get_extent()
6826 	if (em->block_start != EXTENT_MAP_HOLE &&  in btrfs_get_extent_fiemap()
6905 			em->block_start = hole_em->block_start;  in btrfs_get_extent_fiemap()
6917 			em->block_start = EXTENT_MAP_DELALLOC;  in btrfs_get_extent_fiemap()
6937 						  const u64 block_start,  in btrfs_create_dio_extent()  argument
6947 		em = create_io_em(inode, start, len, orig_start, block_start,  in btrfs_create_dio_extent()
6954 	ret = btrfs_add_ordered_extent_dio(inode, start, block_start, len,  in btrfs_create_dio_extent()
7246 				       u64 len, u64 orig_start, u64 block_start,  in create_io_em()  argument
7269 	em->block_start = block_start;  in create_io_em()
7323 	     em->block_start != EXTENT_MAP_HOLE)) {  in btrfs_get_blocks_direct_write()
7325 		u64 block_start, orig_start, orig_block_len, ram_bytes;  in btrfs_get_blocks_direct_write()  local
7332 		block_start = em->block_start + (start - em->start);  in btrfs_get_blocks_direct_write()
7336 		    btrfs_inc_nocow_writers(fs_info, block_start)) {  in btrfs_get_blocks_direct_write()
7340 						      orig_start, block_start,  in btrfs_get_blocks_direct_write()
7343 			btrfs_dec_nocow_writers(fs_info, block_start);  in btrfs_get_blocks_direct_write()
7481 	    em->block_start == EXTENT_MAP_INLINE) {  in btrfs_dio_iomap_begin()
7529 	if ((em->block_start == EXTENT_MAP_HOLE) ||  in btrfs_dio_iomap_begin()
7534 		iomap->addr = em->block_start + (start - em->start);  in btrfs_dio_iomap_begin()
9853 		em->block_start = ins.objectid;  in __btrfs_prealloc_file_range()
10103 	u64 block_start;  member
10128 	first_ppage = ALIGN(bsi->block_start, PAGE_SIZE) >> PAGE_SHIFT;  in btrfs_add_swap_extent()
10129 	next_ppage = ALIGN_DOWN(bsi->block_start + bsi->block_len,  in btrfs_add_swap_extent()
10269 		if (em->block_start == EXTENT_MAP_HOLE) {  in btrfs_swap_activate()
10274 		if (em->block_start == EXTENT_MAP_INLINE) {  in btrfs_swap_activate()
10292 		logical_block_start = em->block_start + (start - em->start);  in btrfs_swap_activate()
10370 		    bsi.block_start + bsi.block_len == physical_block_start) {  in btrfs_swap_activate()
10379 			bsi.block_start = physical_block_start;  in btrfs_swap_activate()