Re: [RFC/RFT PATCH v3] sched: automated per tty task groups

[Oleg Nesterov]

On 11/11, Linus Torvalds wrote:
>
> Well, it cuts both ways. Maybe your approach is simpler and avoids
> overhead at scheduling time. And "tsk->signal" may not be reliable due
> to races with exit etc, so it may well be that going through the
> signal struct could end up being a source of nasty races. I didn't
> look whether the scheduler already derefenced ->signal for some other
> reason, for example.

Just in case, starting from 2.6.35 tsk->signal is reliable.

Oleg.

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