From: Eric Dumazet
Date: Wed, 14 Oct 2015 05:58:38 -0700
> From: Eric Dumazet
>
> As we no longer hold listener lock in fast path, it is possible that a
> child is created right after listener freed its bound port, if a close()
> is done while incoming packets are processed.
>
> __inet_inherit
From: Eric Dumazet
As we no longer hold listener lock in fast path, it is possible that a
child is created right after listener freed its bound port, if a close()
is done while incoming packets are processed.
__inet_inherit_port() must detect this and return an error,
so that caller can free the
