Re: [RFC 1/3] pidfd: allow pidfd_open() on non-thread-group leaders

[Florian Weimer]

* Mathieu Desnoyers:

>>> I'd like to offer a userspace API which allows safe stashing of
>>> unreachable file descriptors on a service thread.

>> By "safe" here do you mean not accessible via pidfd_getfd()?

No, unreachable by close/close_range/dup2/dup3.  I expect we can do an
intra-process transfer using /proc, but I'm hoping for something nicer.

Thanks,
Florian