Commit c7924fb0 authored Oct 29, 2017 by Vitaly Kuznetsov Committed by Greg Kroah-Hartman Nov 04, 2017

hyper-v: trace vmbus_onversion_response()



Add tracepoint to CHANNELMSG_VERSION_RESPONSE handler.

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 602a8c52

drivers/hv/channel_mgmt.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1127,6 +1127,9 @@ static void vmbus_onversion_response(
		unsigned long flags;

		version_response = (struct vmbus_channel_version_response *)hdr;

		trace_vmbus_onversion_response(version_response);

		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);

		list_for_each_entry(msginfo, &vmbus_connection.chn_msg_list,

drivers/hv/hv_trace.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -111,6 +111,17 @@ TRACE_EVENT(vmbus_ongpadl_torndown,
		TP_printk("gpadl 0x%x", __entry->gpadl)
		);

		TRACE_EVENT(vmbus_onversion_response,
		TP_PROTO(const struct vmbus_channel_version_response *response),
		TP_ARGS(response),
		TP_STRUCT__entry(
		__field(u8, ver)
		),
		TP_fast_assign(__entry->ver = response->version_supported;
		),
		TP_printk("version_supported %d", __entry->ver)
		);

		#undef TRACE_INCLUDE_PATH
		#define TRACE_INCLUDE_PATH .
		#undef TRACE_INCLUDE_FILE