Re: [RFC PATCH] sysfs: Add /sys/kernel/realtime entry

On 2026-07-10 18:01:20 [+0200], Florian Bezdeka wrote:
> Depends on what you consider a valid update scenario. Updating from 6.1-
> rt with sysfs available to something like 6.18 (no sysfs anymore) will
> still break - as long as you do not (force) update userspace in
> lockstep.

v6.1-RT to v6-18 no-rt will not provide the file. Also will not provide
ARM, PowerPC or 8250-nbcon support. So it is not just that single thing
that you "lose" if you don't apply the RT patch. It is just what you
notice because you don't use the other things.

> I learned meanwhile that our detection moved to uname meanwhile, so this
> is not a problem for us anymore.

Okay. So you yelled loudly that you need it, now not anymore.

So can we state that this it does not provide anything of value, is not
considered needed and can be dropped?

Clark, what is the status on your end?

I can postpone this and get back in a month or so if we need thinking
time.

> Florian

Sebastian