Re: [PATCH 6.18] sched/fair: Revert 6d71a9c61604 ("sched/fair: Fix EEVDF entity placement bug causing scheduling lag")

[Jose Fernandez (Anthropic)]

On Mon, Aug 10, 2026 at 09:38:30AM +0200, Peter Zijlstra wrote:
> Yeah, this should be fine without 4823725d9d1d.

One heads up, our review tooling caught this after I sent the
Tested-by. The revert was written after commit 80390ead2080
("sched/fair: Separate se->vlag from se->vprot") took vlag and vprot
out of their union, and 6.18 still has the union. Without that split
first, the rel_vprot path in the new reweight_entity() scales vlag
twice and curr's vruntime comes out wrong.