diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 12:21:10 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 12:04:25 +0100 |
| commit | 633b005df0dff555c0d4f22b5f1f8b04dba67ac5 (patch) | |
| tree | 1253a02947559d2e22ef5dccabcc04df262ea7a9 /drivers/hv | |
| parent | 9202d771ca37514bfbc2c3a8fdcb018f40a6bd8a (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/hv')
| -rw-r--r-- | drivers/hv/channel.c | 2 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 15 |
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 |