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acc059e6c8
Note, we skip 4.14.45 because 4.14.46 only has 3 patches in it which unbreak 'perf' compilation. Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
75 lines
2.4 KiB
Diff
75 lines
2.4 KiB
Diff
From 64952a8dc4b8b29c331020f6c626092eb0d6c4c2 Mon Sep 17 00:00:00 2001
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From: Vitaly Kuznetsov <vkuznets@redhat.com>
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Date: Sun, 29 Oct 2017 12:21:15 -0700
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Subject: [PATCH 17/21] hyper-v: trace vmbus_send_tl_connect_request()
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Add tracepoint to CHANNELMSG_TL_CONNECT_REQUEST sender.
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Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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(cherry picked from commit 98f31a0050ca8ba47b57c6d67599013cdbdd2122)
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---
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drivers/hv/channel.c | 7 ++++++-
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drivers/hv/hv_trace.h | 20 ++++++++++++++++++++
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2 files changed, 26 insertions(+), 1 deletion(-)
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diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
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index ba4b4eceb563..218d16c7fbae 100644
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--- a/drivers/hv/channel.c
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+++ b/drivers/hv/channel.c
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@@ -236,13 +236,18 @@ int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
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const uuid_le *shv_host_servie_id)
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{
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struct vmbus_channel_tl_connect_request conn_msg;
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+ int ret;
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memset(&conn_msg, 0, sizeof(conn_msg));
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conn_msg.header.msgtype = CHANNELMSG_TL_CONNECT_REQUEST;
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conn_msg.guest_endpoint_id = *shv_guest_servie_id;
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conn_msg.host_service_id = *shv_host_servie_id;
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- return vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);
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+ ret = vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);
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+
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+ trace_vmbus_send_tl_connect_request(&conn_msg, ret);
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+
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+ return ret;
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}
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EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);
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diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
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index f0e437c3522f..5382d9630306 100644
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--- a/drivers/hv/hv_trace.h
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+++ b/drivers/hv/hv_trace.h
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@@ -274,6 +274,26 @@ TRACE_EVENT(vmbus_release_relid,
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)
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);
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+TRACE_EVENT(vmbus_send_tl_connect_request,
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+ TP_PROTO(const struct vmbus_channel_tl_connect_request *msg,
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+ int ret),
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+ TP_ARGS(msg, ret),
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+ TP_STRUCT__entry(
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+ __array(char, guest_id, 16)
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+ __array(char, host_id, 16)
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+ __field(int, ret)
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+ ),
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+ TP_fast_assign(
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+ memcpy(__entry->guest_id, &msg->guest_endpoint_id.b, 16);
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+ memcpy(__entry->host_id, &msg->host_service_id.b, 16);
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+ __entry->ret = ret;
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+ ),
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+ TP_printk("sending guest_endpoint_id %pUl, host_service_id %pUl, "
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+ "ret %d",
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+ __entry->guest_id, __entry->host_id, __entry->ret
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+ )
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+ );
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+
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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--
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2.16.0
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