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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 12:21:04 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 12:04:24 +0100 |
| commit | 9f23ce1a23b6bf471d5920bdca5cc40940419e60 (patch) | |
| tree | 165a381ad72d2d9fe4f65603d012408f6500f5a9 /drivers/hv | |
| parent | 5175167c77afb19993bd86ab8b4be63d9cb4a928 (diff) | |
| download | lwn-9f23ce1a23b6bf471d5920bdca5cc40940419e60.tar.gz lwn-9f23ce1a23b6bf471d5920bdca5cc40940419e60.zip | |
hyper-v: trace vmbus_onopen_result()
Add tracepoint to CHANNELMSG_OPENCHANNEL_RESULT handler.
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>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 2 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 17 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index cfe5c9c6a87c..c735abe01712 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -986,6 +986,8 @@ static void vmbus_onopen_result(struct vmbus_channel_message_header *hdr) result = (struct vmbus_channel_open_result *)hdr; + trace_vmbus_onopen_result(result); + /* * 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 dbbed1d1f327..9757c19d1c08 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -69,6 +69,23 @@ TRACE_EVENT(vmbus_onoffer_rescind, TP_printk("child_relid 0x%x", __entry->child_relid) ); +TRACE_EVENT(vmbus_onopen_result, + TP_PROTO(const struct vmbus_channel_open_result *result), + TP_ARGS(result), + TP_STRUCT__entry( + __field(u32, child_relid) + __field(u32, openid) + __field(u32, status) + ), + TP_fast_assign(__entry->child_relid = result->child_relid; + __entry->openid = result->openid; + __entry->status = result->status; + ), + TP_printk("child_relid 0x%x, openid %d, status %d", + __entry->child_relid, __entry->openid, __entry->status + ) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE |