From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: devel@linuxdriverproject.org
Cc: linux-kernel@vger.kernel.org,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Steven Rostedt <rostedt@goodmis.org>,
Dexuan Cui <decui@microsoft.com>
Subject: [PATCH v2 02/16] hyper-v: trace vmbus_on_message()
Date: Fri, 29 Sep 2017 15:25:48 +0200 [thread overview]
Message-ID: <20170929132602.24487-3-vkuznets@redhat.com> (raw)
In-Reply-To: <20170929132602.24487-1-vkuznets@redhat.com>
Add tracepoint to vmbus_on_message() which is called when we start
processing a blocking from work context.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 5 +++++
2 files changed, 7 insertions(+)
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 060df71c2e8b..ddeebba8971e 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -1170,6 +1170,8 @@ void vmbus_onmessage(void *context)
hdr = (struct vmbus_channel_message_header *)msg->u.payload;
size = msg->header.payload_size;
+ trace_vmbus_on_message(hdr);
+
if (hdr->msgtype >= CHANNELMSG_COUNT) {
pr_err("Received invalid channel message type %d size %d\n",
hdr->msgtype, size);
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index 82432e351724..4aac780099b4 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -19,6 +19,11 @@ DEFINE_EVENT_PRINT(vmbus_hdr_msg, vmbus_on_msg_dpc,
TP_ARGS(hdr),
TP_printk("message %u received", __entry->msgtype));
+DEFINE_EVENT_PRINT(vmbus_hdr_msg, vmbus_on_message,
+ TP_PROTO(const struct vmbus_channel_message_header *hdr),
+ TP_ARGS(hdr),
+ TP_printk("processing message %u", __entry->msgtype));
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
--
2.13.5
next prev parent reply other threads:[~2017-09-29 13:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-29 13:25 [PATCH v2 00/16] Hyper-V: add tracing to VMBus module and trace all messages Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 01/16] hyper-v: trace vmbus_on_msg_dpc() Vitaly Kuznetsov
2017-10-02 0:18 ` kbuild test robot
2017-10-04 0:08 ` Steven Rostedt
2017-09-29 13:25 ` Vitaly Kuznetsov [this message]
2017-09-29 13:25 ` [PATCH v2 03/16] hyper-v: trace vmbus_onoffer() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 04/16] hyper-v: trace vmbus_onoffer_rescind() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 05/16] hyper-v: trace vmbus_onopen_result() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 06/16] hyper-v: trace vmbus_ongpadl_created() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 07/16] hyper-v: trace vmbus_ongpadl_torndown() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 08/16] hyper-v: trace vmbus_onversion_response() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 09/16] hyper-v: trace vmbus_request_offers() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 10/16] hyper-v: trace vmbus_open() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 11/16] hyper-v: trace vmbus_close_internal() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 12/16] hyper-v: trace vmbus_establish_gpadl() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 13/16] hyper-v: trace vmbus_teardown_gpadl() Vitaly Kuznetsov
2017-09-29 13:26 ` [PATCH v2 14/16] hyper-v: trace vmbus_negotiate_version() Vitaly Kuznetsov
2017-09-29 13:26 ` [PATCH v2 15/16] hyper-v: trace vmbus_release_relid() Vitaly Kuznetsov
2017-09-29 13:26 ` [PATCH v2 16/16] hyper-v: trace vmbus_send_tl_connect_request() Vitaly Kuznetsov
2017-10-03 17:10 ` Stephen Hemminger
2017-10-04 14:10 ` Vitaly Kuznetsov
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