diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 22:21:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 14:04:25 +0300 |
| commit | d6706e63367a9c783974db4b94cf8980d31c4cb2 (patch) | |
| tree | 3d356a48f9ee0ac24c632b1c4e0e1cb888ce00af /drivers | |
| parent | c7924fb07a2646c9ff661efcad1167a1106d6019 (diff) | |
| download | linux-d6706e63367a9c783974db4b94cf8980d31c4cb2.tar.xz | |
hyper-v: trace vmbus_request_offers()
Add tracepoint to CHANNELMSG_REQUESTOFFERS 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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 4 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 8 |
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index c33b7412f303..b27edff8796e 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -1224,9 +1224,11 @@ int vmbus_request_offers(void) msg->msgtype = CHANNELMSG_REQUESTOFFERS; - ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_message_header), true); + + trace_vmbus_request_offers(ret); + if (ret != 0) { pr_err("Unable to request offers - %d\n", ret); diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 2a046547107f..566ac0f2fe56 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -122,6 +122,14 @@ TRACE_EVENT(vmbus_onversion_response, TP_printk("version_supported %d", __entry->ver) ); +TRACE_EVENT(vmbus_request_offers, + TP_PROTO(int ret), + TP_ARGS(ret), + TP_STRUCT__entry(__field(int, ret)), + TP_fast_assign(__entry->ret = ret), + TP_printk("sending ret %d", __entry->ret) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE |