Re: [GIT PULL] overlayfs fixes for 4.9-rc3

[Linus Torvalds]

On Fri, Nov 4, 2016 at 2:30 AM, Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
>
> Also introduce the concept of feature flags to allow backward incompatible
> changes to the overlay format.  This should have been there from day one; the
> best we can do now is backport to stable kernels.  Add the check for features
> without adding any actual features yet.

No. I pulled the three other commits, but not that last one.

That feature just seems to actively *encourage* backwards incompatible
features. It's a bad idea. Don't do it. If we've been able to do
without it so far, then why should we suddenly start doing things like
this?

So I don't agree that it should have been there since day one, it just
shouldn't exist at all.

                  Linus