diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 22:21:01 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 14:04:24 +0300 |
| commit | 716fa52fb474a36ddd3cbc981108f93610c973ef (patch) | |
| tree | 9fb42e3f344aa4810d7e6ac781f37f7ba2fcc3db | |
| parent | c9fe0f8fa4136c2451dcc012e48fbf4470d6b592 (diff) | |
| download | linux-716fa52fb474a36ddd3cbc981108f93610c973ef.tar.xz | |
hyper-v: trace vmbus_on_message()
Add tracepoint to vmbus_on_message() which is called when we start
processing a blocking from work context.
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>
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 2 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index a8dc9a164631..71d4d68488d4 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -1176,6 +1176,8 @@ void vmbus_onmessage(void *context) hdr = (struct vmbus_channel_message_header *)msg->u.payload; size = msg->header.payload_size; + trace_vmbus_on_message(hdr); + if (hdr->msgtype >= CHANNELMSG_COUNT) { pr_err("Received invalid channel message type %d size %d\n", hdr->msgtype, size); diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 9c2772922c76..d432aba5df8a 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -19,6 +19,11 @@ DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_msg_dpc, TP_ARGS(hdr) ); +DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_message, + TP_PROTO(const struct vmbus_channel_message_header *hdr), + TP_ARGS(hdr) +); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE |