[PATCH v2 07/16] hyper-v: trace vmbus_ongpadl_torndown()

[Vitaly Kuznetsov]

Add tracepoint to CHANNELMSG_GPADL_TORNDOWN handler.

Signed-off-by: Vitaly Kuznetsov <vkuznets at redhat.com>
---
 drivers/hv/channel_mgmt.c | 2 ++
 drivers/hv/hv_trace.h     | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index af2448e245ca..1ff2cc064850 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -1076,6 +1076,8 @@ static void vmbus_ongpadl_torndown(
 
 	gpadl_torndown = (struct vmbus_channel_gpadl_torndown *)hdr;
 
+	trace_vmbus_ongpadl_torndown(gpadl_torndown);
+
 	/*
 	 * Find the open msg, copy the result and signal/unblock the wait event
 	 */
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index e5973ab27c58..0c50527c815c 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -103,6 +103,14 @@ TRACE_EVENT(vmbus_ongpadl_created,
 		    )
 	);
 
+TRACE_EVENT(vmbus_ongpadl_torndown,
+	    TP_PROTO(const struct vmbus_channel_gpadl_torndown *gpadltorndown),
+	    TP_ARGS(gpadltorndown),
+	    TP_STRUCT__entry(__field(u32, gpadl)),
+	    TP_fast_assign(__entry->gpadl = gpadltorndown->gpadl),
+	    TP_printk("gpadl 0x%x", __entry->gpadl)
+	);
+
 #undef TRACE_INCLUDE_PATH
 #define TRACE_INCLUDE_PATH .
 #undef TRACE_INCLUDE_FILE
-- 
2.13.5