Re: [PATCH 6/8] job control: Job control stop notifications shouldalways go to the real parent

[Oleg Nesterov]

On 03/08, Tejun Heo wrote:
>
> The stopped notifications in do_signal_stop() and exit_signals() are
> always for the completion of job control.  The one in do_signal_stop()
> may be delivered to the ptracer if PTRACE_ATTACH races with
> notification and the one in exit_signals() if task exits while
> ptraced.
>
> In both cases, the notifications are meaningless and confusing to the
> ptracer as it never accesses the group stop state while the real
> parent would miss notifications for the events it is watching.
>
> Make sure these notifications always go to the real parent by calling
> do_notify_parent_cld_stop() with %false @for_ptrace.

Yes, looks correct.

Oleg.

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