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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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>

-- 
All rights reversed

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]