[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20171029192116.12466-11-kys@exchange.microsoft.com>
Date: Sun, 29 Oct 2017 12:21:10 -0700
From: kys@...hange.microsoft.com
To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
vkuznets@...hat.com, jasowang@...hat.com,
leann.ogasawara@...onical.com, marcelo.cerri@...onical.com,
sthemmin@...rosoft.com
Cc: "K . Y . Srinivasan" <kys@...rosoft.com>
Subject: [PATCH 11/17] hyper-v: trace vmbus_close_internal()
From: Vitaly Kuznetsov <vkuznets@...hat.com>
Add tracepoint to CHANNELMSG_CLOSECHANNEL sender.
Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
---
drivers/hv/channel.c | 2 ++
drivers/hv/hv_trace.h | 15 +++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 739b3fe1e0fb..a827f43aa408 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -591,6 +591,8 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_close_channel),
true);
+ trace_vmbus_close_internal(msg, ret);
+
if (ret) {
pr_err("Close failed: close post msg return is %d\n", ret);
/*
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index 38fedb803bd8..302bd4e964f0 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -157,6 +157,21 @@ TRACE_EVENT(vmbus_open,
)
);
+TRACE_EVENT(vmbus_close_internal,
+ TP_PROTO(const struct vmbus_channel_close_channel *msg, int ret),
+ TP_ARGS(msg, ret),
+ TP_STRUCT__entry(
+ __field(u32, child_relid)
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ __entry->child_relid = msg->child_relid;
+ __entry->ret = ret;
+ ),
+ TP_printk("sending child_relid 0x%x, ret %d", __entry->child_relid,
+ __entry->ret)
+ );
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
--
2.14.1
Powered by blists - more mailing lists