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52 lines
1.7 KiB
Diff
52 lines
1.7 KiB
Diff
From b6aef73b369fcae742775a47ec633bbf34eccbac 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 12:21:03 -0700
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Subject: [PATCH 05/21] hyper-v: trace vmbus_onoffer_rescind()
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Add tracepoint to CHANNELMSG_RESCIND_CHANNELOFFER handler.
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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 5175167c77afb19993bd86ab8b4be63d9cb4a928)
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---
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drivers/hv/channel_mgmt.c | 2 ++
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drivers/hv/hv_trace.h | 8 ++++++++
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2 files changed, 10 insertions(+)
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diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
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index fbc97bf81665..f6c8da0d0867 100644
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--- a/drivers/hv/channel_mgmt.c
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+++ b/drivers/hv/channel_mgmt.c
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@@ -849,6 +849,8 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
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rescind = (struct vmbus_channel_rescind_offer *)hdr;
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+ trace_vmbus_onoffer_rescind(rescind);
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+
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/*
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* The offer msg and the corresponding rescind msg
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* from the host are guranteed to be ordered -
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diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
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index 488b873b563e..dbbed1d1f327 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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@@ -61,6 +61,14 @@ TRACE_EVENT(vmbus_onoffer,
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)
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);
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+TRACE_EVENT(vmbus_onoffer_rescind,
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+ TP_PROTO(const struct vmbus_channel_rescind_offer *offer),
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+ TP_ARGS(offer),
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+ TP_STRUCT__entry(__field(u32, child_relid)),
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+ TP_fast_assign(__entry->child_relid = offer->child_relid),
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+ TP_printk("child_relid 0x%x", __entry->child_relid)
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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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