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