On Tue, 2016-09-27 at 18:58 +0200, Paolo Abeni wrote:
>
> Since the new memory accounting model does not require socket
> locking, remove the lock on enqueue and free and avoid using the
> backlog on enqueue.
...
> __UDP_INC_STATS(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
> @@ -2345,6 +2325,7 @@ struct proto udp_prot = {
> .connect = ip4_datagram_connect,
> .disconnect = udp_disconnect,
> .ioctl = udp_ioctl,
> + .init = udp_init_sock,
> .destroy = udp_destroy_sock,
> .setsockopt = udp_setsockopt,
> .getsockopt = udp_getsockopt,
> @@ -2357,7 +2338,10 @@ struct proto udp_prot = {
> .unhash = udp_lib_unhash,
> .rehash = udp_v4_rehash,
> .get_port = udp_v4_get_port,
> + .enter_memory_pressure = udp_enter_memory_pressure,
> + .sockets_allocated = &udp_sockets_allocated,
> .memory_allocated = &udp_memory_allocated,
> + .memory_pressure = &udp_memory_pressure,
> .sysctl_mem = sysctl_udp_mem,
> .sysctl_wmem = &sysctl_udp_wmem_min,
> .sysctl_rmem = &sysctl_udp_rmem_min,
I find disturbing you did not remove
.backlog_rcv = __udp_queue_rcv_skb,
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