Re: [PATCH 16/18] sched: Avoid overloading CPUs on a preferred NUMAnode

From: Mel Gorman
Date: Tue Jul 16 2013 - 12:02:08 EST


On Tue, Jul 16, 2013 at 11:55:24PM +0800, Hillf Danton wrote:
> On Mon, Jul 15, 2013 at 11:20 PM, Mel Gorman <mgorman@xxxxxxx> wrote:
> > +
> > +static int task_numa_find_cpu(struct task_struct *p, int nid)
> > +{
> > + int node_cpu = cpumask_first(cpumask_of_node(nid));
> [...]
> >
> > + /* No harm being optimistic */
> > + if (idle_cpu(node_cpu))
> > + return node_cpu;
> >
> [...]
> > + for_each_cpu(cpu, cpumask_of_node(nid)) {
> > + dst_load = target_load(cpu, idx);
> > +
> > + /* If the CPU is idle, use it */
> > + if (!dst_load)
> > + return dst_cpu;
> > +
> Here you want cpu, instead of dst_cpu, I guess.

Crap, yes. Thanks!

--
Mel Gorman
SUSE Labs
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