PR28240 patch: debuginfod-client negative-hit caching for root user

[Frank Ch. Eigler]

Hi -

On Thu, Aug 26, 2021 at 11:59:24PM +0200, Mark Wielaard wrote:
> [...]
> Yes, this seems the right sequence, but don't we still have a little race
> condition (if someone runs as root)?

Yeah, I see what you mean, good point.  The code should do the open(),
and then fstat() the fd.

- FChE