Re: eventfd(2) and timerfd(2) APIs

[Jason Thorpe]

> On Sep 18, 2021, at 5:51 PM, Robert Elz <k...@munnari.oz.au> wrote:
> 
>  | You'll get EBADF if you try it on anything else
> 
> and that's definitely wrong, on a pipe the system is allowed to return EINVAL,
> and that's what ought to be returned whenever the fd is not something that
> supports chmod (etc).   EBADF should only be used when the process doesn't
> have the fd open.

Oops, I may be wrong about that specific detail.  I’ll double-check later.

-- thorpej