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Groups > linux.kernel > #1742125

[PATCH v2 04/16] hyper-v: trace vmbus_onoffer_rescind()

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Add tracepoint to CHANNELMSG_RESCIND_CHANNELOFFER handler.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 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 290ea25ce409..563653a02ab6 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -841,6 +841,8 @@ 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 d38f8ed272ca..8bb8806a16f7 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
-- 
2.13.5

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[PATCH v2 00/16] Hyper-V: add tracing to VMBus module and trace all messages Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:30 +0200
  [PATCH v2 13/16] hyper-v: trace vmbus_teardown_gpadl() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:30 +0200
  [PATCH v2 05/16] hyper-v: trace vmbus_onopen_result() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:30 +0200
  [PATCH v2 15/16] hyper-v: trace vmbus_release_relid() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:30 +0200
  [PATCH v2 12/16] hyper-v: trace vmbus_establish_gpadl() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:30 +0200
  [PATCH v2 02/16] hyper-v: trace vmbus_on_message() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:40 +0200
  [PATCH v2 08/16] hyper-v: trace vmbus_onversion_response() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:40 +0200
  [PATCH v2 04/16] hyper-v: trace vmbus_onoffer_rescind() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:40 +0200
  [PATCH v2 11/16] hyper-v: trace vmbus_close_internal() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:40 +0200
  [PATCH v2 06/16] hyper-v: trace vmbus_ongpadl_created() Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-09-29 15:40 +0200

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