Re: [RFC PATCH v3 00/11] virtio/vsock: experimental zerocopy receive

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On Fri, Nov 11, 2022 at 02:47:15PM +0100, Stefano Garzarella wrote:
> Hi Arseniy,
> maybe we should start rebasing this series on the new support for skbuff: https://lore.kernel.org/lkml/20221110171723.24263-1-bobby.eshleman@xxxxxxxxxxxxx/
> 
> CCing Bobby to see if it's easy to integrate since you're both changing the
> packet allocation.
> 

This looks like the packet allocation can be married somewhat nicely in
since SKBs may be built from pages using build_skb(). There may be some
tweaking necessary though, since it also uses the tail chunk of the page
to hold struct skb_shared_info IIRC.

I left some comments on the patch with the allocator in it.

> 
> Maybe to avoid having to rebase everything later, it's already worthwhile to
> start using Bobby's patch with skbuff.
> 

I'll be waiting until Monday to see if some more feedback comes in
before sending out v4, so I expect v4 early next week, FWIW.

Best,
Bobby



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