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由 Rik van Riel 提交于
Commit a43455a1 ensures that task_numa_migrate will call task_numa_compare on the preferred node all the time, even when the preferred node has no free capacity. This could lead to a performance regression if nr_running == capacity on both the source and the destination node. This can be avoided by also checking for nr_running == capacity on the source node, which is one stricter than checking .has_free_capacity. Signed-off-by: NRik van Riel <riel@redhat.com> Signed-off-by: NPeter Zijlstra <peterz@infradead.org> Cc: mgorman@suse.de Cc: vincent.guittot@linaro.org Cc: Morten.Rasmussen@arm.com Cc: nicolas.pitre@linaro.org Cc: efault@gmx.de Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1407173008-9334-2-git-send-email-riel@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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