[PATCH 71] RFC, fix ptrace(PTRACE_DETACH, signr) logic

[Oleg Nesterov]

Damn, sorry for noise.

On 10/06, Oleg Nesterov wrote:
>
> Forgot to mention...
>
> I didn't test this patch and it is in fact buggy, we should
> set sig = context->siginfo->si_signo when !valid_signal(sig).

Heh. And I just realized SEND_SIG_NOINFO == NULL, so this patch
can't work. But I think it is clear what it should do.



off-topic, but can't resist. Personally I don't like the fact
SEND_SIG_NOINFO == NULL. Regardless of this patch, what do you
think if we change these SEND_XXX defines so that no one can
be confused with NULL ?

Oleg.