On Wed, Jul 03, 2013 at 03:21:40PM +0100, Mel Gorman wrote:
> ---
> kernel/sched/fair.c | 45 ++++++++++++++++++++++++++++++++++++++++++---
> kernel/sched/sched.h | 4 ++++
> 2 files changed, 46 insertions(+), 3 deletions(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 3c796b0..9ffdff3 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -777,6 +777,18 @@ update_stats_curr_start(struct cfs_rq *cfs_rq, struct
> sched_entity *se)
> * Scheduling class queueing methods:
> */
>
> +static void account_numa_enqueue(struct rq *rq, struct task_struct *p)
> +{
> + rq->nr_preferred_running +=
> + (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid);
> +}
> +
> +static void account_numa_dequeue(struct rq *rq, struct task_struct *p)
> +{
> + rq->nr_preferred_running -=
> + (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid);
> +}
Ah doing this requires you dequeue before changing ->numa_preferred_nid. I
don't remember seeing that change in this series.
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