Re: [PATCH] vfs: add fchmodat2 syscall

[Christoph Hellwig]

On Thu, Sep 10, 2020 at 10:23:37AM -0400, Rich Felker wrote:
> userspace emulation done in libc implementations. No change is made to
> the underlying chmod_common(), so it's still possible to attempt
> changes via procfs, if desired.

And that is the goddamn problem.  We need to fix that _first_.  After
that we can add sugarcoating using new syscalls if needed.