Re: [PATCH] sched: correct how RT task is picked

From: Steven Rostedt
Date: Wed May 18 2011 - 11:16:00 EST


On Wed, 2011-05-18 at 22:46 +0800, Hillf Danton wrote:

> For migration, it is the case that cpu != rq->cpu, and
> if cpu is allowed by task's affinity, it is bug that task
> could not goto cpu because of nr_cpus_allowed since
> the nr_cpus_allowed is computed based on the cpus_allowed mask.

Right, that nr_cpus_allowed was to be a short cut, so we did not have to
look at the cpu mask. But as that check came after, it was pointless.
Perhaps that too was a relic with the cpu < 0 case.

Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>

-- Steve


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