We give most of the trees away at the freetree days organized throughout the city.
我们给了大部分的树木以外，在自由树天内有组织整个城市。
2
First, the node from the freetree with the lowest address (which is greater than or equal to the requested block size) is removed.
首先，删除空闲树中(大于或等于请求的块大小的)地址最低的节点。
3
If the size of the reallocated block is smaller than the original block, the block is split and the extra block is returned to the freetree with the required size block being returned to the caller.