[PATCH v3 1/5] asm-generic: barrier: Add smp_cond_load_relaxed_timewait()

[Christoph Lameter (Ampere)]

On Wed, 13 Aug 2025, Arnd Bergmann wrote:

> I think there is a reasonable chance that in the future we may want
> to turn the event stream off on systems that support WFET, since that
> is better for both low-power systems and virtual machines with CPU
> overcommit.

WFET is coming in with V9.something I believe so its good to be prepared
and it will simplify the logic.