* tip-bot for Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:
> Commit-ID: 5f3e60fb2a0e05cdaf9b59acb0bb249bb1e96362
> Gitweb: http://git.kernel.org/tip/5f3e60fb2a0e05cdaf9b59acb0bb249bb1e96362
> Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> AuthorDate: Thu, 23 Jul 2009 20:13:26 +0200
> Committer: Ingo Molnar <mingo@xxxxxxx>
> CommitDate: Mon, 3 Aug 2009 14:35:37 +0200
> --- a/kernel/sched_fair.c
> +++ b/kernel/sched_fair.c
> @@ -546,6 +546,11 @@ update_stats_wait_end(struct cfs_rq *cfs_rq, struct sched_entity *se)
> schedstat_set(se->wait_sum, se->wait_sum +
> rq_of(cfs_rq)->clock - se->wait_start);
> schedstat_set(se->wait_start, 0);
> +
> + if (entity_is_task(se)) {
> + trace_sched_stat_wait(task_of(se),
> + rq_of(cfs_rq)->clock - se->wait_start);
> + }
FYI, this doesnt build with !SCHEDSTATS. I suspect we shold maintain
se->wait_start unconditionally.
Ingo
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