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hyper-v: trace vmbus_close_internal() 

Add tracepoint to CHANNELMSG_CLOSECHANNEL sender.

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>
This commit is contained in:
Vitaly Kuznetsov 2017-10-29 12:21:10 -07:00 committed by Greg Kroah-Hartman
parent 9202d771ca
commit 633b005df0
2 changed files with 17 additions and 0 deletions
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2
drivers/hv/channel.c
View File

@ -591,6 +591,8 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_close_channel),
true);
trace_vmbus_close_internal(msg, ret);
if (ret) {
pr_err("Close failed: close post msg return is %d\n", ret);
/*

15
drivers/hv/hv_trace.h
View File

@ -157,6 +157,21 @@ TRACE_EVENT(vmbus_open,
)
);
TRACE_EVENT(vmbus_close_internal,
TP_PROTO(const struct vmbus_channel_close_channel *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