On 04/23/2019 03:06 PM, David Howells wrote:
> Eric Dumazet wrote:
>
>> @@ -1161,19 +1161,15 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp,
>> struct sk_buff *skb)
>> * handle data received on the local endpoint
>> * - may be called in interrupt context
>> *
>> - * The socket is
Eric Dumazet wrote:
> @@ -1161,19 +1161,15 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp,
> struct sk_buff *skb)
> * handle data received on the local endpoint
> * - may be called in interrupt context
> *
> - * The socket is locked by the caller and this prevents the socket from be
After commit 5271953cad31 ("rxrpc: Use the UDP encap_rcv hook"),
rxrpc_input_packet() is directly called from lockless UDP receive
path, under rcu_read_lock() protection.
It must therefore use RCU rules :
- udp_sk->sk_user_data can be cleared at any point in this function.
rcu_dereference_sk_us
