netdev - Re: [PATCH take 2] pkt_sched: Fix qdisc_watchdog() vs. dev

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Message-ID: <20080911123406.GC5765@ff.dom.local>
Date:	Thu, 11 Sep 2008 12:34:07 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH take 2] pkt_sched: Fix qdisc_watchdog() vs.
	dev_deactivate() race

On Thu, Sep 11, 2008 at 09:54:49PM +1000, Herbert Xu wrote:
> On Thu, Sep 11, 2008 at 11:51:32AM +0000, Jarek Poplawski wrote:
> > 
> > IMHO, the most reasonable test here is for all tx_queues of a qdisc
> > beeing stopped, but since this is quite heavy, probably we need an
> > additional qdisc flag for such an occasion.
...
> So I don't think there's anything inherently advantageous in
> checking all the queues.

BTW, I hope I wasn't misunderstood here. I don't mean any additional
checking of all the queues anywhere. It's only about setting such
a flag at the end of netif_stop_all_queues() and netif_stop_queue().

Jarek P.
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