Re: [patch V5 09/16] futex: Add support for unlocking robust futexes

[Peter Zijlstra]

On Tue, Jun 02, 2026 at 11:09:55AM +0200, Thomas Gleixner wrote:

> This deliberately omits FUTEX_WAKE_OP from this treatment as it's unclear
> whether this is needed and there is no usage of it in glibc either to
> investigate.

Well, that and because that already consumes uaddr2 its just not doable
as-is.

> For the futex2 syscall family this needs to be implemented with a new
> syscall.

Yeah, this would need to be part of futex_lock() / futex_unlock(), which
we don't yet have.