linux-kernel - Re: [PATCH net-next] skbuff: clear tx zero-copy flag

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Message-ID: <20110725095711.GA30831@gondor.apana.org.au>
Date:	Mon, 25 Jul 2011 17:57:11 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	Shirley Ma <mashirle@...ibm.com>, davem@...emloft.net,
	netdev@...r.kernel.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] skbuff: clear tx zero-copy flag

On Mon, Jul 25, 2011 at 12:44:14PM +0300, Michael S. Tsirkin wrote:
>
> if yes that seems to always clone an skb, which in turn
> does the copy so we are fine?

Yes you're right, it should be safe.

However, I think we should add a WARN_ON to the splice skb path
so that should a packet find its way through a path that we haven't
thought of then at least we'll know about it.

Thanks,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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