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authorVitaly Kuznetsov <vkuznets@redhat.com>2017-10-29 12:21:13 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-04 12:04:25 +0100
commit034ebf552e0a3403eeb7e7f8a3a502fc0c70a24c (patch)
treeb7d8455fb7b161733de85415883e0f2e17c45ffe /drivers/hv/connection.c
parent09cdf8f87c15dbe9a3eeb6de04aaafd0cd922d6d (diff)
hyper-v: trace vmbus_negotiate_version()
Add tracepoint to CHANNELMSG_INITIATE_CONTACT sender. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv/connection.c')
-rw-r--r--drivers/hv/connection.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index b06a6b796819..05f413c4fe3b 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -117,6 +117,9 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo,
ret = vmbus_post_msg(msg,
sizeof(struct vmbus_channel_initiate_contact),
true);
+
+ trace_vmbus_negotiate_version(msg, ret);
+
if (ret != 0) {
spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
list_del(&msginfo->msglistentry);