Re: [PATCH v2] signal: add procfd_signal() syscall

* Andy Lutomirski:

quoted

I suppose that's fine.  Or alternatively, when thread group support is
added, introduce a flag that applications have to use to enable it, so
that they can probe for support by checking support for the flag.

I wouldn't be opposed to a new system call like this either:

 int procfd_open (pid_t thread_group, pid_t thread_id, unsigned flags);

But I think this is frowned upon on the kernel side.

I have no problem with it, except that I think it shouldn’t return an
fd that can be used for proc filesystem access.

Oh no, my intention was that it would just be used with  *_send_signal
and related functions.

Thanks,
Florian