441 	struct extent_buffer *leaf;  in create_subvol()  local
490 	leaf = btrfs_alloc_tree_block(trans, root, 0, objectid, NULL, 0, 0, 0);  in create_subvol()
491 	if (IS_ERR(leaf)) {  in create_subvol()
492 		ret = PTR_ERR(leaf);  in create_subvol()
496 	memset_extent_buffer(leaf, 0, 0, sizeof(struct btrfs_header));  in create_subvol()
497 	btrfs_set_header_bytenr(leaf, leaf->start);  in create_subvol()
498 	btrfs_set_header_generation(leaf, trans->transid);  in create_subvol()
499 	btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);  in create_subvol()
500 	btrfs_set_header_owner(leaf, objectid);  in create_subvol()
502 	write_extent_buffer(leaf, root->fs_info->fsid, btrfs_header_fsid(),  in create_subvol()
504 	write_extent_buffer(leaf, root->fs_info->chunk_tree_uuid,  in create_subvol()
505 			    btrfs_header_chunk_tree_uuid(leaf),  in create_subvol()
507 	btrfs_mark_buffer_dirty(leaf);  in create_subvol()
522 	btrfs_set_root_bytenr(&root_item, leaf->start);  in create_subvol()
526 	btrfs_set_root_used(&root_item, leaf->len);  in create_subvol()
539 	btrfs_tree_unlock(leaf);  in create_subvol()
540 	free_extent_buffer(leaf);  in create_subvol()
541 	leaf = NULL;  in create_subvol()
924 	struct extent_buffer *leaf;  in find_new_extents()  local
948 		leaf = path->nodes[0];  in find_new_extents()
949 		extent = btrfs_item_ptr(leaf, path->slots[0],  in find_new_extents()
952 		type = btrfs_file_extent_type(leaf, extent);  in find_new_extents()
954 		    btrfs_file_extent_num_bytes(leaf, extent) < thresh &&  in find_new_extents()
962 		if (path->slots[0] < btrfs_header_nritems(leaf)) {  in find_new_extents()
963 			btrfs_item_key_to_cpu(leaf, &min_key, path->slots[0]);  in find_new_extents()
1937 	struct extent_buffer *leaf;  in copy_to_sk()  local
1946 	leaf = path->nodes[0];  in copy_to_sk()
1948 	nritems = btrfs_header_nritems(leaf);  in copy_to_sk()
1950 	if (btrfs_header_generation(leaf) > sk->max_transid) {  in copy_to_sk()
1954 	found_transid = btrfs_header_generation(leaf);  in copy_to_sk()
1957 		item_off = btrfs_item_ptr_offset(leaf, i);  in copy_to_sk()
1958 		item_len = btrfs_item_size_nr(leaf, i);  in copy_to_sk()
1960 		btrfs_item_key_to_cpu(leaf, key, i);  in copy_to_sk()
2002 			if (read_extent_buffer_to_user(leaf, up,  in copy_to_sk()
3334 	struct extent_buffer *leaf;  in btrfs_clone()  local
3398 		leaf = path->nodes[0];  in btrfs_clone()
3401 		btrfs_item_key_to_cpu(leaf, &key, slot);  in btrfs_clone()
3416 			extent = btrfs_item_ptr(leaf, slot,  in btrfs_clone()
3418 			comp = btrfs_file_extent_compression(leaf, extent);  in btrfs_clone()
3419 			type = btrfs_file_extent_type(leaf, extent);  in btrfs_clone()
3422 				disko = btrfs_file_extent_disk_bytenr(leaf,  in btrfs_clone()
3424 				diskl = btrfs_file_extent_disk_num_bytes(leaf,  in btrfs_clone()
3426 				datao = btrfs_file_extent_offset(leaf, extent);  in btrfs_clone()
3427 				datal = btrfs_file_extent_num_bytes(leaf,  in btrfs_clone()
3431 				datal = btrfs_file_extent_ram_bytes(leaf,  in btrfs_clone()
3447 			size = btrfs_item_size_nr(leaf, slot);  in btrfs_clone()
3448 			read_extent_buffer(leaf, buf,  in btrfs_clone()
3449 					   btrfs_item_ptr_offset(leaf, slot),  in btrfs_clone()
3523 				leaf = path->nodes[0];  in btrfs_clone()
3525 				write_extent_buffer(leaf, buf,  in btrfs_clone()
3526 					    btrfs_item_ptr_offset(leaf, slot),  in btrfs_clone()
3529 				extent = btrfs_item_ptr(leaf, slot,  in btrfs_clone()
3536 				btrfs_set_file_extent_offset(leaf, extent,  in btrfs_clone()
3538 				btrfs_set_file_extent_num_bytes(leaf, extent,  in btrfs_clone()
3614 				leaf = path->nodes[0];  in btrfs_clone()
3626 			btrfs_mark_buffer_dirty(leaf);  in btrfs_clone()