Messages in this thread Patch in this message | | | Date | Tue, 3 Oct 2017 10:50:20 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH -v2 13/18] sched/fair: Propagate an effective runnable_load_avg |
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On Mon, Oct 02, 2017 at 06:46:32PM +0100, Dietmar Eggemann wrote:
> > +/* > > + * Recomputes the group entity based on the current state of its group > > + * runqueue. > > + */ > > +static void update_cfs_group(struct sched_entity *se) > > update_cfs_share(s)() is still mentioned in the function header of > update_tg_load_avg() and update_cfs_rq_load_avg(). > > Should we rename those comments with this patch? > > IMHO, the comment for update_tg_load_avg() is still true whereas the one > for update_cfs_rq_load_avg() mentions cfs_rq->avg as > cfs_rq->avg.load_avg (or cfs_rq_load_avg()) and update_cfs_group() > doesn't use it anymore. It's now used in calc_group_runnable() and > calc_group_shares() instead. > > [...]
Right, so something like the below? Thinking that update_cfs_group() immediately leads to calc_group_*() so no need to spell those out.
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 350dbec01523..fee2e34812da 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3333,7 +3333,7 @@ __update_load_avg_cfs_rq(u64 now, int cpu, struct cfs_rq *cfs_rq) * differential update where we store the last value we propagated. This in * turn allows skipping updates if the differential is 'small'. * - * Updating tg's load_avg is necessary before update_cfs_share(). + * Updating tg's load_avg is necessary before update_cfs_group(). */ static inline void update_tg_load_avg(struct cfs_rq *cfs_rq, int force) { @@ -3601,7 +3601,7 @@ static inline void add_tg_cfs_propagate(struct cfs_rq *cfs_rq, long runnable_sum * avg. The immediate corollary is that all (fair) tasks must be attached, see * post_init_entity_util_avg(). * - * cfs_rq->avg is used for task_h_load() and update_cfs_share() for example. + * cfs_rq->avg is used for task_h_load() and update_cfs_group() for example. * * Returns true if the load decayed or we removed load. *
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