Re: [PATCH v2] fs: rename S_KERNEL_FILE

[Al Viro]

On Fri, Jan 28, 2022 at 11:35:59AM +0000, David Howells wrote:

> > Whether deny rmdir should have its own flag or not I don't know,
> > but from ovl POV I *think* it should not be a problem to deny rmdir
> > for the ovl upper/work dirs as long as ovl is mounted(?).
> 
> What's the consequence of someone rearranging the directories directly in the
> contributing dirs whilst there's an overlay over them?

"Don't do it, then - presumably the kernel won't panic, but don't expect it to
try and invent nice semantics for the crap you are trying to pull"