[PATCH 1/4] ptrace: temporary revert the recent ptrace/jobctl rework

[Oleg Nesterov]

On 06/20, Kyle McMartin wrote:
>
> I don't really have an objection
> to utrace per se, as it is low impact, just the idea of reverting a
> bunch of inconvenient code to do it.

I understand. Once again, it was supposed to be a temporary solution
until fedora switches to 3.1. And the reverted code does not make the
real difference so far, the user-visible changes are minor.

OK, I won't argue. So we need to rework utrace/ptrace in 3.0, then we
should do this again in 3.1. I'll try to do something.

Oleg.