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-rw-r--r--drivers/hv/channel_mgmt.c7
-rw-r--r--drivers/hv/hv_trace.h16
2 files changed, 21 insertions, 2 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index b27edff8796e..ec5454f3f4a6 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -373,12 +373,15 @@ static void percpu_channel_deq(void *arg)
static void vmbus_release_relid(u32 relid)
{
struct vmbus_channel_relid_released msg;
+ int ret;
memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
msg.child_relid = relid;
msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
- vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released),
- true);
+ ret = vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released),
+ true);
+
+ trace_vmbus_release_relid(&msg, ret);
}
void hv_process_channel_removal(u32 relid)
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index f06284d64a8c..f0e437c3522f 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -258,6 +258,22 @@ TRACE_EVENT(vmbus_negotiate_version,
)
);
+TRACE_EVENT(vmbus_release_relid,
+ TP_PROTO(const struct vmbus_channel_relid_released *msg, int ret),
+ TP_ARGS(msg, ret),
+ TP_STRUCT__entry(
+ __field(u32, child_relid)
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ __entry->child_relid = msg->child_relid;
+ __entry->ret = ret;
+ ),
+ TP_printk("sending child_relid 0x%x, ret %d",
+ __entry->child_relid, __entry->ret
+ )
+ );
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE

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