Commit-ID: e777b63bbd589248eb151a3191ee92331a701385 Gitweb: http://git.kernel.org/tip/e777b63bbd589248eb151a3191ee92331a701385 Author: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx> AuthorDate: Thu, 12 Dec 2013 15:23:26 +0800 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Tue, 17 Dec 2013 15:24:41 +0100 sched/numa: Fix period_slot recalculation The original code is as intended and was meant to scale the difference between the NUMA_PERIOD_THRESHOLD and local/remote ratio when adjusting the scan period. The period_slot recalculation can be dropped. Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx> Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Acked-by: Mel Gorman <mgorman@xxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx> Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Rik van Riel <riel@xxxxxxxxxx> Link: http://lkml.kernel.org/r/1386833006-6600-4-git-send-email-liwanp@xxxxxxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- kernel/sched/fair.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 37892d7..4316af2 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1342,7 +1342,6 @@ static void update_task_scan_period(struct task_struct *p, * scanning faster if shared accesses dominate as it may * simply bounce migrations uselessly */ - period_slot = DIV_ROUND_UP(diff, NUMA_PERIOD_SLOTS); ratio = DIV_ROUND_UP(private * NUMA_PERIOD_SLOTS, (private + shared)); diff = (diff * ratio) / NUMA_PERIOD_SLOTS; } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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