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sock_diag: remove sock_diag_mutex
sock_diag_rcv() is still serializing its operations using a mutex, for no good reason. This came with commit0a9c730144
("[INET_DIAG]: Fix oops in netlink_rcv_skb"), but the root cause has been fixed with commitcd40b7d398
("[NET]: make netlink user -> kernel interface synchronious") Remove this mutex to let multiple threads run concurrently. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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@ -292,13 +292,9 @@ static int sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
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}
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}
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static DEFINE_MUTEX(sock_diag_mutex);
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static void sock_diag_rcv(struct sk_buff *skb)
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{
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mutex_lock(&sock_diag_mutex);
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netlink_rcv_skb(skb, &sock_diag_rcv_msg);
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mutex_unlock(&sock_diag_mutex);
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}
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static int sock_diag_bind(struct net *net, int group)
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