Re: [PATCH 2/4] sched/fair: Drop out incomplete current period when sched averages accrue

[Yuyang Du]

On Tue, Apr 12, 2016 at 01:02:58PM +0100, Dietmar Eggemann wrote:
> On 10/04/16 23:36, Yuyang Du wrote:
> 
> [...]
> 
> > @@ -2704,11 +2694,14 @@ static __always_inline int
> >  __update_load_avg(u64 now, int cpu, struct sched_avg *sa,
> >               unsigned long weight, int running, struct cfs_rq *cfs_rq)
> >  {
> > -   u64 delta, scaled_delta, periods;
> > -   u32 contrib;
> > -   unsigned int delta_w, scaled_delta_w, decayed = 0;
> > +   u64 delta;
> > +   u32 contrib, periods;
> >     unsigned long scale_freq, scale_cpu;
> >  
> > +   /*
> > +    * now rolls down to a period boundary
> > +    */
> > +   now = now && (u64)(~0xFFFFF);
> 
> This forces now to be 1.
> 
> s/&&/&

Duh, :)

Thanks.