Re: [PATCH 1/3] ptrace: ptrace_reparented() should checksame_thread_group()

[Oleg Nesterov]

On 06/25, Tejun Heo wrote:
>
> This patch involves very subtle behavior change when the tracer is
> multi-threaded && real parent of the tracee.  Slightly worrisome

Agreed. That is why, despite the fact the change itself is trivial,
the changelog is so long.

I am almost sure nobody will ever notice this change, but still this
is the user-visible change.

> but
> it is a bug fix and extremely fringe, so...

Agreed. Even if very minor, this looks like a bug, imho makes sense
to fix.

>  Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

Oleg.

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