linux-kernel - Re: [patch] BFS 420: a tiny step forward

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Date:	Thu, 7 Jun 2012 21:05:01 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Emmanuel Benisty <benisty.e@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Manuel Krause <manuelkrause@...nline.de>
Subject: Re: [patch] BFS 420: a tiny step forward

On Thu, Jun 7, 2012 at 8:37 PM, Hillf Danton <dhillf@...il.com> wrote:
> Hi Emmanuel
>
> On Wed, Jun 6, 2012 at 11:51 PM, Emmanuel Benisty <benisty.e@...il.com> wrote:
>>
>> Unfortunately, the issue is still there.
>>
> Hang at same place?
>
And try to revert handling CPU_ONLINE, please.


--- a/kernel/sched/bfs.c	Sat Jun  2 17:30:28 2012
+++ b/kernel/sched/bfs.c	Thu Jun  7 20:58:36 2012
@@ -5352,7 +5352,7 @@ migration_call(struct notifier_block *nf
 		/* Update our root-domain */
 		grq_lock_irqsave(&flags);
 		if (rq->rd) {
-			BUG_ON(cpumask_test_cpu(cpu, rq->rd->span));
+			BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span));

 			set_rq_online(rq);
 		}
--
--
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