linux-kernel - Re: [PATCH net-next v6 1/10] xen-netback: Use skb->cb for pending

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Message-ID: <53177772.60304@citrix.com>
Date:	Wed, 5 Mar 2014 19:13:54 +0000
From:	Zoltan Kiss <zoltan.kiss@...rix.com>
To:	Wei Liu <wei.liu2@...rix.com>
CC:	<ian.campbell@...rix.com>, <xen-devel@...ts.xenproject.org>,
	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<jonathan.davies@...rix.com>
Subject: Re: [PATCH net-next v6 1/10] xen-netback: Use skb->cb for pending_idx

On 05/03/14 12:16, Wei Liu wrote:
> On Tue, Mar 04, 2014 at 10:32:12PM +0000, Zoltan Kiss wrote:
>> Storing the pending_idx at the first byte of the linear buffer never looked
>> good, skb->cb is a more proper place for this. It also prevents the header to
>> be directly grant copied there, and we don't have the pending_idx after we
>> copied the header here, so it's time to change it.
>>
>
> I think this is a valid change. But I would like you to define a
> skb_cb_overlay just like the receive path does.
>
> You can rename skb_cb_overlay in current code to skb_cb_overlay_rx and
> add your skb_cb_overlay_tx.

Ok

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