Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
pull-request: bpf 2018-10-14

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Fix xsk map update and delete operation to not call synchronize_net()
   but to piggy back on SOCK_RCU_FREE for sockets instead as we are not
   allowed to sleep under RCU, from Björn.

2) Do not change RLIMIT_MEMLOCK in reuseport_bpf selftest if the process
   already has unlimited RLIMIT_MEMLOCK, from Eric.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

net/xdp/xsk.c

@@ -744,6 +744,8 @@ static int xsk_create(struct net *net, struct socket *sock, int protocol,
 	sk->sk_destruct = xsk_destruct;
 	sk_refcnt_debug_inc(sk);
 
+	sock_set_flag(sk, SOCK_RCU_FREE);
+
 	xs = xdp_sk(sk);
 	mutex_init(&xs->mutex);
 	spin_lock_init(&xs->tx_completion_lock);