linux-kernel - Re: [PATCH] sched: Use RCU variant of list traversal in for_each_leaf_rt

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Message-ID: <20081217023453.GA4146@in.ibm.com>
Date:	Wed, 17 Dec 2008 08:04:53 +0530
From:	Bharata B Rao <bharata@...ux.vnet.ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] sched: Use RCU variant of list traversal in
	for_each_leaf_rt_rq()

On Tue, Dec 16, 2008 at 09:39:57PM +0100, Ingo Molnar wrote:
> 
> * Bharata B Rao <bharata@...ux.vnet.ibm.com> wrote:
> 
> > sched: Use RCU variant of list traversal in for_each_leaf_rt_rq()
> > 
> > for_each_leaf_rt_rq() walks an RCU protected list (rq->leaf_rt_rq_list),
> > but doesn't use list_for_each_entry_rcu(). Fix this.
> > 
> > Signed-off-by: Bharata B Rao <bharata@...ux.vnet.ibm.com>
> > ---
> >  kernel/sched_rt.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> applied to tip/sched/urgent, thanks Bharata!
> 
> i'm wondering, have you observed a real crash, or did you find this via 
> code review?

Via code review.

Thanks,
Bharata.
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