Commit 98f31a00 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Greg Kroah-Hartman
Browse files

hyper-v: trace vmbus_send_tl_connect_request() 



Add tracepoint to CHANNELMSG_TL_CONNECT_REQUEST sender.

Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 259cc665

drivers/hv/channel.c

+6 −1
Original line number Diff line number Diff line
@@ -236,13 +236,18 @@ int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id, 
				  const uuid_le *shv_host_servie_id)

{

	struct vmbus_channel_tl_connect_request conn_msg;

	int ret;



	memset(&conn_msg, 0, sizeof(conn_msg));

	conn_msg.header.msgtype = CHANNELMSG_TL_CONNECT_REQUEST;

	conn_msg.guest_endpoint_id = *shv_guest_servie_id;

	conn_msg.host_service_id = *shv_host_servie_id;



	return vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);

	ret = vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);



	trace_vmbus_send_tl_connect_request(&conn_msg, ret);



	return ret;

}

EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);

drivers/hv/hv_trace.h

+20 −0
Original line number Diff line number Diff line
@@ -274,6 +274,26 @@ TRACE_EVENT(vmbus_release_relid, 
		    )

	);



TRACE_EVENT(vmbus_send_tl_connect_request,

	    TP_PROTO(const struct vmbus_channel_tl_connect_request *msg,

		     int ret),

	    TP_ARGS(msg, ret),

	    TP_STRUCT__entry(

		    __array(char, guest_id, 16)

		    __array(char, host_id, 16)

		    __field(int, ret)

		    ),

	    TP_fast_assign(

		    memcpy(__entry->guest_id, &msg->guest_endpoint_id.b, 16);

		    memcpy(__entry->host_id, &msg->host_service_id.b, 16);

		    __entry->ret = ret;

		    ),

	    TP_printk("sending guest_endpoint_id %pUl, host_service_id %pUl, "

		      "ret %d",

		      __entry->guest_id, __entry->host_id, __entry->ret

		    )

	);



#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE