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[209.132.180.67]) by mx.google.com with ESMTP id g2si26254200plg.336.2019.05.29.06.09.35; Wed, 29 May 2019 06:09:53 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727141AbfE2NIB (ORCPT + 99 others); Wed, 29 May 2019 09:08:01 -0400 Received: from out30-44.freemail.mail.aliyun.com ([115.124.30.44]:40414 "EHLO out30-44.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726613AbfE2NH7 (ORCPT ); Wed, 29 May 2019 09:07:59 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R181e4;CH=green;DM=||false|;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e07487;MF=tonylu@linux.alibaba.com;NM=1;PH=DS;RN=5;SR=0;TI=SMTPD_---0TSyCu0g_1559135275; Received: from localhost(mailfrom:tonylu@linux.alibaba.com fp:SMTPD_---0TSyCu0g_1559135275) by smtp.aliyun-inc.com(127.0.0.1); Wed, 29 May 2019 21:07:56 +0800 From: Tony Lu To: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, davem@davemloft.net, laoar.shao@gmail.com, songliubraving@fb.com Subject: [PATCH net-next 2/3] udp: introduce a new tracepoint for udp_queue_rcv_skb Date: Wed, 29 May 2019 21:06:56 +0800 Message-Id: <20190529130656.23979-3-tonylu@linux.alibaba.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190529130656.23979-1-tonylu@linux.alibaba.com> References: <20190529130656.23979-1-tonylu@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This introduces a new tracepoint trace_udp_queue_rcv, it will trace UDP packets that are going to be queued on the socket receive queue. Signed-off-by: Tony Lu --- include/trace/events/udp.h | 7 +++++++ net/ipv4/udp.c | 1 + net/ipv6/udp.c | 1 + 3 files changed, 9 insertions(+) diff --git a/include/trace/events/udp.h b/include/trace/events/udp.h index f2c26780e2a9..37daea5f7cb1 100644 --- a/include/trace/events/udp.h +++ b/include/trace/events/udp.h @@ -108,6 +108,13 @@ DEFINE_EVENT(udp_event_sk_skb, udp_send, TP_ARGS(sk, skb) ); +DEFINE_EVENT(udp_event_sk_skb, udp_queue_rcv, + + TP_PROTO(const struct sock *sk, const struct sk_buff *skb), + + TP_ARGS(sk, skb) +); + #endif /* _TRACE_UDP_H */ /* This part must be outside protection */ diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 3ff6fea9debe..262d76559bd5 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2238,6 +2238,7 @@ static int udp_unicast_rcv_skb(struct sock *sk, struct sk_buff *skb, skb_checksum_try_convert(skb, IPPROTO_UDP, uh->check, inet_compute_pseudo); + trace_udp_queue_rcv(sk, skb); ret = udp_queue_rcv_skb(sk, skb); /* a return value > 0 means to resubmit the input, but diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 3a26990d5dc8..49473c5d3c4b 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -842,6 +842,7 @@ static int udp6_unicast_rcv_skb(struct sock *sk, struct sk_buff *skb, skb_checksum_try_convert(skb, IPPROTO_UDP, uh->check, ip6_compute_pseudo); + trace_udp_queue_rcv(sk, skb); ret = udpv6_queue_rcv_skb(sk, skb); /* a return value > 0 means to resubmit the input */ -- 2.21.0