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SubjectRe: [tip: sched/core] sched/numa: Avoid migrating task to CPU-less node
On Mon, Mar 07, 2022 at 01:51:55PM +0800, Huang, Ying wrote:
> > ---
> > kernel/sched/fair.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> > index a3f0ea216ccb..1fe7a4510cca 100644
> > --- a/kernel/sched/fair.c
> > +++ b/kernel/sched/fair.c
> > @@ -2405,7 +2405,7 @@ static void task_numa_placement(struct task_struct *p)
> > }
> >
> > /* Cannot migrate task to CPU-less node */
> > - if (!node_state(max_nid, N_CPU)) {
> > + if (max_nid != NUMA_NO_NODE && !node_state(max_nid, N_CPU)) {
> > int near_nid = max_nid;
> > int distance, near_distance = INT_MAX;
>
> Do you have time to give this patch a try?

Ah, I thought I has already replied it a while ago. Anyway, it works fine.

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