[PATCH 54] PTRACE_SINGLESTEP shouldn't bypass SYSCALL_EXIT

[Oleg Nesterov]

On 09/23, Roland McGrath wrote:
>
> > However, the current behaviour is that PTRACE_SINGLESTEP acts like
> > PTRACE_SYSCALL (but see below), if the tracee is not going to return
> > to user-mode yet. Say, PTRACE_EVENT_VFORK.
>
> Not really.  Given what I just wrote, I'm not sure if you want me
> to merge these.  I'm sure you'll be changing it entirely and these
> look to me to be enough in the wrong direction that they are not
> incrementally useful.

Yes. these changes are temporary hacks. I did them mostly to ensure
I really understand the pending problems.

> My utrace tree is still forked from 2.6.31.  If you want me to merge the
> current upstream tree so you get b60e714d folded in, I can do that.

I don't care ;)

Because currently I do not pull from your tree. And I already applied
b60e714d to my tree.

Oleg.