From 633b005df0dff555c0d4f22b5f1f8b04dba67ac5 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Sun, 29 Oct 2017 12:21:10 -0700 Subject: hyper-v: trace vmbus_close_internal() Add tracepoint to CHANNELMSG_CLOSECHANNEL sender. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/channel.c | 2 ++ drivers/hv/hv_trace.h | 15 +++++++++++++++ 2 files changed, 17 insertions(+) (limited to 'drivers/hv') diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 739b3fe1e0fb..a827f43aa408 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -591,6 +591,8 @@ static int vmbus_close_internal(struct vmbus_channel *channel) ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_close_channel), true); + trace_vmbus_close_internal(msg, ret); + if (ret) { pr_err("Close failed: close post msg return is %d\n", ret); /* diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 38fedb803bd8..302bd4e964f0 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -157,6 +157,21 @@ TRACE_EVENT(vmbus_open, ) ); +TRACE_EVENT(vmbus_close_internal, + TP_PROTO(const struct vmbus_channel_close_channel *msg, int ret), + TP_ARGS(msg, ret), + TP_STRUCT__entry( + __field(u32, child_relid) + __field(int, ret) + ), + TP_fast_assign( + __entry->child_relid = msg->child_relid; + __entry->ret = ret; + ), + TP_printk("sending child_relid 0x%x, ret %d", __entry->child_relid, + __entry->ret) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE -- cgit