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authorVitaly Kuznetsov <vkuznets@redhat.com>2017-10-29 12:21:03 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-04 12:04:24 +0100
commit5175167c77afb19993bd86ab8b4be63d9cb4a928 (patch)
tree1368e1b5a8387cfc5f6e9366d234f4638b0082a2 /drivers/hv
parent03b81e66c78b076bfc127714ce6fd25655784600 (diff)
downloadlinux-5175167c77afb19993bd86ab8b4be63d9cb4a928.tar.bz2
hyper-v: trace vmbus_onoffer_rescind()
Add tracepoint to CHANNELMSG_RESCIND_CHANNELOFFER handler. 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/hv')
-rw-r--r--drivers/hv/channel_mgmt.c2
-rw-r--r--drivers/hv/hv_trace.h8
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 7c11e17ad295..cfe5c9c6a87c 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -856,6 +856,8 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
rescind = (struct vmbus_channel_rescind_offer *)hdr;
+ trace_vmbus_onoffer_rescind(rescind);
+
/*
* The offer msg and the corresponding rescind msg
* from the host are guranteed to be ordered -
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index 488b873b563e..dbbed1d1f327 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -61,6 +61,14 @@ TRACE_EVENT(vmbus_onoffer,
)
);
+TRACE_EVENT(vmbus_onoffer_rescind,
+ TP_PROTO(const struct vmbus_channel_rescind_offer *offer),
+ TP_ARGS(offer),
+ TP_STRUCT__entry(__field(u32, child_relid)),
+ TP_fast_assign(__entry->child_relid = offer->child_relid),
+ TP_printk("child_relid 0x%x", __entry->child_relid)
+ );
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE