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SubjectRe: [PATCH net-next 3/3] vhost: access vq metadata through kernel virtual address
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From: Jason Wang <jasowang@redhat.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

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