前面的感觉容易理解,就是zcache已经废弃,Bob Liu重写了他并提交到 main -mm tree(mm模块的代码树?),zcache is obsolete and not used anymore, Bob Liu has rewritten it and is submitting it for inclusion through the main -mm tree, as it should have been done in the first place...
但后面的"as it should have been done in the first place",不明白是什么意思...
意思是这次修改的优先级排在第一位?