sk_rcu 513 include/net/sock.h struct rcu_head sk_rcu; sk_rcu 1693 net/core/sock.c struct sock *sk = container_of(head, struct sock, sk_rcu); sk_rcu 1739 net/core/sock.c call_rcu(&sk->sk_rcu, __sk_destruct); sk_rcu 1741 net/core/sock.c __sk_destruct(&sk->sk_rcu);