From 5175167c77afb19993bd86ab8b4be63d9cb4a928 Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Sun, 29 Oct 2017 12:21:03 -0700
Subject: [PATCH] hyper-v: trace vmbus_onoffer_rescind()
Add tracepoint to CHANNELMSG_RESCIND_CHANNELOFFER handler.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 8 ++++++++
2 files changed, 10 insertions(+)
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 7c11e17ad295d..cfe5c9c6a87c8 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -856,6 +856,8 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
rescind = (struct vmbus_channel_rescind_offer *)hdr;
+ trace_vmbus_onoffer_rescind(rescind);
+
/*
* The offer msg and the corresponding rescind msg
* from the host are guranteed to be ordered -
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index 488b873b563ea..dbbed1d1f327d 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -61,6 +61,14 @@ TRACE_EVENT(vmbus_onoffer,
)
);
+TRACE_EVENT(vmbus_onoffer_rescind,
+ TP_PROTO(const struct vmbus_channel_rescind_offer *offer),
+ TP_ARGS(offer),
+ TP_STRUCT__entry(__field(u32, child_relid)),
+ TP_fast_assign(__entry->child_relid = offer->child_relid),
+ TP_printk("child_relid 0x%x", __entry->child_relid)
+ );
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
--
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