From: Willem de Bruijn <[email protected]>
Date: Fri, 22 Sep 2017 19:42:37 -0400
> Zerocopy skbs frags are copied when the skb is looped to a local sock.
> Commit 1080e512d44d ("net: orphan frags on receive") introduced calls
> to skb_orphan_frags to deliver_skb and __netif_receive_skb for this.
>
> With msg_zerocopy, these skbs can also exist in the tx path and thus
> loop from dev_queue_xmit_nit. This already calls deliver_skb in its
> loop. But it does not orphan before a separate pt_prev->func().
>
> Add the missing skb_orphan_frags_rx.
>
> Changes
> v1->v2: handle skb_orphan_frags_rx failure
>
> Fixes: 1f8b977ab32d ("sock: enable MSG_ZEROCOPY")
> Signed-off-by: Willem de Bruijn <[email protected]>
Applied and queued up for -stable, thanks.
