mptcp: add tracepoint in mptcp_sendmsg_frag

The tracepoint in get_mapping_status() only dumped the incoming mpext fields. This patch added a new tracepoint in mptcp_sendmsg_frag() to dump the outgoing mpext too. Signed-off-by: Geliang Tang <geliang.tang@suse.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mariux64 · Mar 9, 2022 · 0eb4e7e · 0eb4e7e
1 parent d307eab
commit 0eb4e7e
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diff --git a/include/trace/events/mptcp.h b/include/trace/events/mptcp.h
@@ -115,6 +115,10 @@ DECLARE_EVENT_CLASS(mptcp_dump_mpext,
 		  __entry->csum_reqd)
 );
 
+DEFINE_EVENT(mptcp_dump_mpext, mptcp_sendmsg_frag,
+	TP_PROTO(struct mptcp_ext *mpext),
+	TP_ARGS(mpext));
+
 DEFINE_EVENT(mptcp_dump_mpext, get_mapping_status,
 	TP_PROTO(struct mptcp_ext *mpext),
 	TP_ARGS(mpext));

diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
@@ -1356,6 +1356,7 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk,
 out:
 	if (READ_ONCE(msk->csum_enabled))
 		mptcp_update_data_checksum(skb, copy);
+	trace_mptcp_sendmsg_frag(mpext);
 	mptcp_subflow_ctx(ssk)->rel_write_seq += copy;
 	return copy;
 }