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Subject[PATCH v3 13/17] hyper-v: trace vmbus_teardown_gpadl()
Date
Add tracepoint to CHANNELMSG_GPADL_TEARDOWN sender.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
drivers/hv/channel.c | 2 ++
drivers/hv/hv_trace.h | 18 ++++++++++++++++++
2 files changed, 20 insertions(+)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index cf6bc0667cde..9cb81838e7bb 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -519,6 +519,8 @@ int vmbus_teardown_gpadl(struct vmbus_channel *channel, u32 gpadl_handle)
ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_gpadl_teardown),
true);

+ trace_vmbus_teardown_gpadl(msg, ret);
+
if (ret)
goto post_msg_err;

diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index 978e70bdc7c5..cd33a52ef27f 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -214,6 +214,24 @@ TRACE_EVENT(vmbus_establish_gpadl_body,
)
);

+TRACE_EVENT(vmbus_teardown_gpadl,
+ TP_PROTO(const struct vmbus_channel_gpadl_teardown *msg, int ret),
+ TP_ARGS(msg, ret),
+ TP_STRUCT__entry(
+ __field(u32, child_relid)
+ __field(u32, gpadl)
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ __entry->child_relid = msg->child_relid;
+ __entry->gpadl = msg->gpadl;
+ __entry->ret = ret;
+ ),
+ TP_printk("sending child_relid 0x%x, gpadl 0x%x, ret %d",
+ __entry->child_relid, __entry->gpadl, __entry->ret
+ )
+ );
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
--
2.13.6
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