Re: [RFC][PATCH 4/6][v3] Define siginfo_from_ancestor_ns()

[Oleg Nesterov]

On 12/22, Oleg Nesterov wrote:
>
> On 12/20, Sukadev Bhattiprolu wrote:
> >
> > + * TODO:
> > + * 	  Making SI_ASYNCIO a kernel signal could make this less hacky.
> > + */
> > +#ifdef CONFIG_PID_NS
> > +static inline int siginfo_from_user(siginfo_t *info)
> > +{
> > +	if (!is_si_special(info) && SI_FROMUSER(info) &&
>
> OK, if we can trust SI_FROMUSER(), then it is better, i agree.

Aaah, forgot to mention...

But could you explain how are you going to fix another problem,
.si_pid mangling? This was another reason for (yes, ugly, agreed)
SIG_FROM_USER in .si_signo.

Oleg.

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