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subflow: use rsk_ops->send_reset() 

tcp_send_active_reset() is more prone to transient errors
(memory allocation or xmit queue full): in stress conditions
the kernel may drop the egress packet, and the client will be
stuck.

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Tested-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2020-07-23 13:02:35 +02:00 committed by David S. Miller
parent b7514694ed
commit 97e617518c
1 changed files with 1 additions and 1 deletions
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2
net/mptcp/subflow.c
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@ -524,9 +524,9 @@ static struct sock *subflow_syn_recv_sock(const struct sock *sk,
dispose_child:
subflow_drop_ctx(child);
tcp_rsk(req)->drop_req = true;
tcp_send_active_reset(child, GFP_ATOMIC);
inet_csk_prepare_for_destroy_sock(child);
tcp_done(child);
req->rsk_ops->send_reset(sk, skb);
/* The last child reference will be released by the caller */
return child;