linux-kernel - Re: [PATCH net-next 3/3] vhost: access vq metadata through kernel virtual address

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Message-Id: <20181215.131506.1592727721701772545.davem@davemloft.net>
Date:   Sat, 15 Dec 2018 13:15:06 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     jasowang@...hat.com
Cc:     mst@...hat.com, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 3/3] vhost: access vq metadata through kernel
 virtual address

From: Jason Wang <jasowang@...hat.com>
Date: Fri, 14 Dec 2018 11:57:35 +0800

> This is the price of all GUP users not only vhost itself. What's more
> important, the goal is not to be left too much behind for other
> backends like DPDK or AF_XDP (all of which are using GUP).

+1