aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorVitaly Kuznetsov <vkuznets@redhat.com>2017-10-29 12:21:10 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-04 12:04:25 +0100
commit633b005df0dff555c0d4f22b5f1f8b04dba67ac5 (patch)
tree1253a02947559d2e22ef5dccabcc04df262ea7a9 /drivers
parent9202d771ca37514bfbc2c3a8fdcb018f40a6bd8a (diff)
hyper-v: trace vmbus_close_internal()
Add tracepoint to CHANNELMSG_CLOSECHANNEL 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.c2
-rw-r--r--drivers/hv/hv_trace.h15
2 files changed, 17 insertions, 0 deletions
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

Privacy Policy