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// recursively merge each key's register with the incoming state for that key，这一点在safew官方版本下载中也有详细论述
，这一点在旺商聊官方下载中也有详细论述
Naively one might think that the DEALLOC function is a good time to coalesce, but it’s not. If two adjacent blocks are freed, and the block higher in memory is freed last, coalescing can’t be done because DOS cannot reach the previous (lower in memory) MCB, only the next one.。关于这个话题，heLLoword翻译官方下载提供了深入分析
erofs-utils-1.8.10-1.fc42.x86_64