Re: [PATCH bpf-next 2/3] veth: rework veth_xdp_rcv_skb in order to accept non-linear skb

[Jakub Kicinski <kuba@xxxxxxxxxx>]

On Fri, 11 Feb 2022 02:20:31 +0100 Lorenzo Bianconi wrote:
> +	if (skb_shared(skb) || skb_head_is_locked(skb)) {

Is this sufficient to guarantee that the frags can be written?
skb_cow_data() tells a different story.