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56 lines
1.7 KiB
Diff
56 lines
1.7 KiB
Diff
From ebe1786baacce327b6fdc6262f5d91cbb0656480 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 12:21:08 -0700
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Subject: [PATCH 10/21] hyper-v: trace vmbus_request_offers()
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Add tracepoint to CHANNELMSG_REQUESTOFFERS 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 d6706e63367a9c783974db4b94cf8980d31c4cb2)
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---
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drivers/hv/channel_mgmt.c | 4 +++-
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drivers/hv/hv_trace.h | 8 ++++++++
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2 files changed, 11 insertions(+), 1 deletion(-)
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diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
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index 66eddd6feb3c..610561f52fd5 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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@@ -1292,9 +1292,11 @@ int vmbus_request_offers(void)
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msg->msgtype = CHANNELMSG_REQUESTOFFERS;
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-
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ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_message_header),
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true);
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+
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+ trace_vmbus_request_offers(ret);
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+
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if (ret != 0) {
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pr_err("Unable to request offers - %d\n", ret);
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diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
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index 2a046547107f..566ac0f2fe56 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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@@ -122,6 +122,14 @@ TRACE_EVENT(vmbus_onversion_response,
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TP_printk("version_supported %d", __entry->ver)
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);
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+TRACE_EVENT(vmbus_request_offers,
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+ TP_PROTO(int ret),
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+ TP_ARGS(ret),
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+ TP_STRUCT__entry(__field(int, ret)),
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+ TP_fast_assign(__entry->ret = ret),
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+ TP_printk("sending ret %d", __entry->ret)
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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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2.19.2
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