linux-kernel - Re: [PATCH net-next] xen-netback: Grant copy the header instead of map and memcpy

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Message-ID: <533440EA.20608@citrix.com>
Date:	Thu, 27 Mar 2014 15:16:58 +0000
From:	Zoltan Kiss <zoltan.kiss@...rix.com>
To:	Ian Campbell <Ian.Campbell@...rix.com>
CC:	<wei.liu2@...rix.com>, <xen-devel@...ts.xenproject.org>,
	<paul.durrant@...rix.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <jonathan.davies@...rix.com>
Subject: Re: [PATCH net-next] xen-netback: Grant copy the header instead of
 map and memcpy

On 27/03/14 12:46, Zoltan Kiss wrote:
> On 27/03/14 11:35, Ian Campbell wrote:
>> On Wed, 2014-03-26 at 21:18 +0000, Zoltan Kiss wrote:
>> You've added a second hypercall to tx_action, probably those can be
>> combined into one vm exit by using a multicall.
> Yes, good idea!

Thinking a bit further, it would need some grant-table.c changes first. 
I've put it onto my todo list.

Zoli
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