> Support peeking at a non-zero offset for UDP sockets. Match the
> existing behavior on Unix datagram sockets.
>
> 1/3 makes the sk_peek_offset functions safe to use outside locks
> 2/3 removes udp headers before enqueue, to simplify offset arithmetic
> 3/3 introduces SO_PEEK_OFFSET support, with
From: Willem de Bruijn
Support peeking at a non-zero offset for UDP sockets. Match the
existing behavior on Unix datagram sockets.
1/3 makes the sk_peek_offset functions safe to use outside locks
2/3 removes udp headers before enqueue, to simplify offset arithmetic
3/3 introduces SO_PEEK_OFFSET
