Re: [patch] possible SMP races all over the place in wait_event

[Alan Cox]

> Actually, as you can never set the state of another process, it would be
> fine to just have
> 
>       set_state(TASK_INTERRUPTIBLE);
> 
> instead.
> 
> However, often the mb()'s really aren't needed due to being implicit in
> something else you do, so I don't know..

        _set_state(blah)

as well then. That also means in future actual code can get into state
changes should it ever become useful for a scheduler change

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