Commit d6706e63 authored Oct 29, 2017 by Vitaly Kuznetsov Committed by Greg Kroah-Hartman Nov 04, 2017

hyper-v: trace vmbus_request_offers()



Add tracepoint to CHANNELMSG_REQUESTOFFERS 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>

parent c7924fb0

drivers/hv/channel_mgmt.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1224,9 +1224,11 @@ int vmbus_request_offers(void)

		msg->msgtype = CHANNELMSG_REQUESTOFFERS;


		ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_message_header),
		true);

		trace_vmbus_request_offers(ret);

		if (ret != 0) {
		pr_err("Unable to request offers - %d\n", ret);

drivers/hv/hv_trace.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -122,6 +122,14 @@ TRACE_EVENT(vmbus_onversion_response,
		TP_printk("version_supported %d", __entry->ver)
		);

		TRACE_EVENT(vmbus_request_offers,
		TP_PROTO(int ret),
		TP_ARGS(ret),
		TP_STRUCT__entry(__field(int, ret)),
		TP_fast_assign(__entry->ret = ret),
		TP_printk("sending ret %d", __entry->ret)
		);

		#undef TRACE_INCLUDE_PATH
		#define TRACE_INCLUDE_PATH .
		#undef TRACE_INCLUDE_FILE