Re: [PATCH 51/63] sched: numa: Prevent parallel updates to groupstats during placement

[Rik van Riel]

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@xxxxxxx>

Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>

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