Re: Re: [PATCH 1/2] sched/eevdf: Always update V if se->on_rq when reweighting

[Abel Wu]

On 3/5/24 10:13 AM, Tianchen Ding Wrote:
> On 2024/3/4 20:06, Abel Wu wrote:
> > On 3/4/24 11:00 AM, Tianchen Ding Wrote:
> > > reweight_eevdf() needs the latest V to do accurate calculation for new
> > > ve and vd. So update V unconditionally when se is runnable.
> >
> > As this should come along with commit eab03c23c2a1, I think it would
> > be better add a Fixes tag?
>
> I'm not sure. In fact avg_vruntime_sub() in reweight_entity() was first introduced by af4cf40470c2, and at that time the algorithm about reweight was not completed...

It is because before commit eab03c23c2a1, reweight didn't rely on V.