From: Paolo Abeni <pab...@redhat.com>
Date: Fri, 4 Nov 2016 11:28:57 +0100
> After commit 850cbaddb52d ("udp: use it's own memory accounting schema"),
> the udp code needs to acquire twice the receive queue spinlock on dequeue.
>
> This patch series remove the need for the second lock at skb free time,
> moving the udp memory scheduling inside the dequeue operation; the skb
> destructor field is not used anymore and an additional sk argument is added
> to ip_cmsg_recv_offset() to cope with null skb->sk after dequeue.
>
> Many thanks to Eric Dumazed for suggesting pretty all much the above.
Series applied, thanks.
