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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 12:21:07 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 12:04:25 +0100 |
| commit | c7924fb07a2646c9ff661efcad1167a1106d6019 (patch) | |
| tree | 5c8c35d733f9f8c73b70d97bd5e4f1d2433a278b /drivers/hv | |
| parent | 602a8c525c8c7b2ff446894fc6b21f42471c952f (diff) | |
| download | linux-stable-c7924fb07a2646c9ff661efcad1167a1106d6019.tar.gz linux-stable-c7924fb07a2646c9ff661efcad1167a1106d6019.tar.bz2 linux-stable-c7924fb07a2646c9ff661efcad1167a1106d6019.zip | |
hyper-v: trace vmbus_onversion_response()
Add tracepoint to CHANNELMSG_VERSION_RESPONSE 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 | 3 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 11 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index d1cb85257bf0..c33b7412f303 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -1127,6 +1127,9 @@ static void vmbus_onversion_response( unsigned long flags; version_response = (struct vmbus_channel_version_response *)hdr; + + trace_vmbus_onversion_response(version_response); + spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); list_for_each_entry(msginfo, &vmbus_connection.chn_msg_list, diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 84c08cdf7235..2a046547107f 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -111,6 +111,17 @@ TRACE_EVENT(vmbus_ongpadl_torndown, TP_printk("gpadl 0x%x", __entry->gpadl) ); +TRACE_EVENT(vmbus_onversion_response, + TP_PROTO(const struct vmbus_channel_version_response *response), + TP_ARGS(response), + TP_STRUCT__entry( + __field(u8, ver) + ), + TP_fast_assign(__entry->ver = response->version_supported; + ), + TP_printk("version_supported %d", __entry->ver) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE |