On Mon, Sep 07, 2020 at 09:05:02PM +0800, qianjun.ker...@gmail.com wrote: > From: jun qian <qianjun.ker...@gmail.com> > > It is hard to understand what the meaning of the value from > the return value of wakeup_preempt_entity, so I fix it.
> @@ -6822,9 +6828,9 @@ static unsigned long wakeup_gran(struct sched_entity > *se) > * g > * |<--->|c > * > - * w(c, s1) = -1 > - * w(c, s2) = 0 > - * w(c, s3) = 1 > + * w(c, s1) = NO_NEED_PREEMPT > + * w(c, s2) = MAY_NEED_PREEMPT > + * w(c, s3) = NEED_PREEMPT > * > */ Yeah, I don't think so. The function is a simple C style compare, where negative is less, 0 is equal and positive is more than.
