| Date | Mon, 07 Oct 2013 15:13:05 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH 51/63] sched: numa: Prevent parallel updates to group stats during placement |
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On 10/07/2013 06:29 AM, Mel Gorman wrote: > Having multiple tasks in a group go through task_numa_placement > simultaneously can lead to a task picking a wrong node to run on, because > the group stats may be in the middle of an update. This patch avoids > parallel updates by holding the numa_group lock during placement > decisions. > > Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
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