From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Duyck Subject: [net-next PATCH 2/5] net: Call sk_mark_napi_id() in the ACK receive path Date: Thu, 16 Mar 2017 11:32:44 -0700 Message-ID: <20170316183244.15806.77453.stgit@localhost.localdomain> References: <20170316183142.15806.38824.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: sridhar.samudrala@intel.com, edumazet@google.com, davem@davemloft.net To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: In-Reply-To: <20170316183142.15806.38824.stgit@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Sridhar Samudrala Call sk_mark_napi_id() in the ACK receive path of a TCP_NEW_SYN_RECV socket, so that sk->napi_id is set even if the socket hasn't yet received any data. With this change we should be able to start busy polling slightly earlier. Signed-off-by: Sridhar Samudrala Signed-off-by: Alexander Duyck --- net/ipv4/tcp_ipv4.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 08d870e45658..b86002a296f1 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1687,6 +1687,7 @@ int tcp_v4_rcv(struct sk_buff *skb) tcp_v4_send_reset(nsk, skb); goto discard_and_relse; } else { + sk_mark_napi_id(nsk, skb); sock_put(sk); return 0; }