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SubjectRe: [PATCH 2/2] sched: fix a logical error in select_task_rq_fair
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On Thu, 2012-07-26 at 13:27 +0800, Alex Shi wrote:
> If find_idlest_cpu() return '-1', and sd->child is NULL. The function
> select_task_rq_fair will return -1. That is not the function's purpose.

But find_idlest_cpu() will only return -1 if the group mask is fully
excluded by the cpus_allowed mask, right?

In that case aren't we covering up a bug in find_idlest_group(), it
appears to have returned a group that isn't eligible to be idlest.




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