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hyper-v: trace channel events

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Added an additional set of trace points for when channel gets notified
or signals host.

Suggested-by: Stephen Hemminger <sthemmin@microsoft.com>
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>
This commit is contained in:
Vitaly Kuznetsov
2017-10-29 12:21:16 -07:00
committed by Greg Kroah-Hartman
parent 98f31a0050
commit 991f8f1c6e
4 changed files with 29 additions and 0 deletions
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2
drivers/hv/vmbus_drv.c
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@@ -946,6 +946,8 @@ static void vmbus_chan_sched(struct hv_per_cpu_context *hv_cpu)
if (channel->rescind)
continue;
trace_vmbus_chan_sched(channel);
++channel->interrupts;
switch (channel->callback_mode) {