Re: [RFC PATCH 2/2] macvtap: TX zero copy between guest and host kernel

Shirley Ma
2010-09-15T18:48:15Z

On Wed, 2010-09-15 at 19:30 +0200, Michael S. Tsirkin wrote:
> At some level NETIF_F_NETNS_LOCAL makes sense: local packets
> can get anywhere. OTOH one wonders whether there might be other
> issues, e.g. in theory devices could hang on to frag pages
> just by doing get_page. There might be other issues.
> Maybe we are better off white-listing known-good drivers
> with a new flag?

Sounds reasonable to me if there is no such a flag to be easily used.

Thanks
Shirley