From 716fa52fb474a36ddd3cbc981108f93610c973ef Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Sun, 29 Oct 2017 12:21:01 -0700 Subject: [PATCH] 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 Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/channel_mgmt.c | 2 ++ drivers/hv/hv_trace.h | 5 +++++ 2 files changed, 7 insertions(+) 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 -- GitLab