[q] how to make sure a process is not on CPU?

[Coywolf Qi Hunt]

Hello,

I'm trying to manipulate a process, I must make sure not only the
process won't go away under me, also it is not on CPU, and it'll
return from schedule() at lease once.

Any thoughts?
--
Coywolf Qi Hunt
http://sosdg.org/~coywolf/
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