[PATCH 06/16] hyper-v: trace vmbus_ongpadl_created()

Vitaly Kuznetsov
2017-09-20T17:24:49Z

Add tracepoint to CHANNELMSG_GPADL_CREATED handler.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 17 +++++++++++++++++
2 files changed, 19 insertions(+)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 2abe0563876b..af2448e245ca 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -1026,6 +1026,8 @@ static void vmbus_ongpadl_created(struct vmbus_channel_message_header *hdr)

gpadlcreated = (struct vmbus_channel_gpadl_created *)hdr;

+ trace_vmbus_ongpadl_created(gpadlcreated);
+
/*
* Find the establish 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 c98d66d683f4..99e2b8858e18 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -84,6 +84,23 @@ TRACE_EVENT(vmbus_onopen_result,
)
);

+TRACE_EVENT(vmbus_ongpadl_created,
+ TP_PROTO(const struct vmbus_channel_gpadl_created *gpadlcreated),
+ TP_ARGS(gpadlcreated),
+ TP_STRUCT__entry(
+ __field(u32, child_relid)
+ __field(u32, gpadl)
+ __field(u32, status)
+ ),
+ TP_fast_assign(__entry->child_relid = gpadlcreated->child_relid;
+ __entry->gpadl = gpadlcreated->gpadl;
+ __entry->status = gpadlcreated->creation_status;
+ ),
+ TP_printk("child_relid 0x%x, gpadl 0x%x, creation_status %d",
+ __entry->child_relid, __entry->gpadl, __entry->status
+ )