Re: [PATCH RFC] tun: experimental zero copy tx support

[Shirley Ma]

On Mon, 2012-05-14 at 22:31 +0300, Michael S. Tsirkin wrote:
> On Mon, May 14, 2012 at 09:21:47PM +0200, Eric Dumazet wrote:
> > On Mon, 2012-05-14 at 22:14 +0300, Michael S. Tsirkin wrote:
> > 
> > > They seem to be in net-next, or did I miss something?
> > 
> > Yes, you re-introduce in this patch some bugs already fixed in
> macvtap
> 
> Could explain why I see some problems in testing :)
> Maybe common code should go into net/core?
> I couldn't decide whether the increase in kernel
> size is worth it.

Which problem you hit during testing?

The logic of zerocopy_sg_from_iovec should work well. Jason's fix made
the code more clear.

Thanks
Shirley

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