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From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] sched_rt: protect rt_rq->rt_time by rt_runtime_lock
Date: Fri, 06 Feb 2009 10:50:41 -0800	[thread overview]
Message-ID: <498C8681.3070205@ct.jp.nec.com> (raw)
In-Reply-To: <498B7F13.7040104@ct.jp.nec.com>

Hiroshi Shimamoto wrote:
> Peter Zijlstra wrote:
>> On Thu, 2009-02-05 at 15:38 -0800, Hiroshi Shimamoto wrote:
>>> From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
>>>
>>> Impact: fix possible race condition
>>>
>>> rt_rq->rt_time should be protected.
>> Don't think so, all we do is check the value for non-zero outside the
>> lock, that should be ok.

OK, now I see. I didn't find any real race.

Thanks,
Hiroshi

      reply	other threads:[~2009-02-06 18:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-05 23:36 [PATCH 1/2] sched_rt: don't start timer when rt bandwidth disabled Hiroshi Shimamoto
2009-02-05 23:38 ` [PATCH 2/2] sched_rt: protect rt_rq->rt_time by rt_runtime_lock Hiroshi Shimamoto
2009-02-05 23:59   ` Peter Zijlstra
2009-02-06  0:06     ` Hiroshi Shimamoto
2009-02-06 18:50       ` Hiroshi Shimamoto [this message]

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