netdev - Re: xfrm_state locking regression...

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Message-ID: <20080912160825.GA5690@gondor.apana.org.au>
Date:	Sat, 13 Sep 2008 02:08:25 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	paulmck@...ux.vnet.ibm.com, timo.teras@....fi,
	netdev@...r.kernel.org
Subject: Re: xfrm_state locking regression...

On Thu, Sep 11, 2008 at 03:00:06PM -0700, David Miller wrote:
>
> > There is only one reader at a time, right?  Otherwise, I don't see how
> > the increments and reads of xfrm_state_walk_completed line up.
> 
> The RTNL semaphore is held across the modifications of the counters.

s/RTNL/xfrm_cfg_mutex/

but otherwise what Dave said :)

Thanks,
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