diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 12:21:14 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 12:04:26 +0100 |
| commit | 259cc665e9c08d054549a877c1b53b793de15753 (patch) | |
| tree | 4fb85c183fea3a48e1172987fe523c3393ae99cd /drivers/hv | |
| parent | 034ebf552e0a3403eeb7e7f8a3a502fc0c70a24c (diff) | |
| download | linux-259cc665e9c08d054549a877c1b53b793de15753.tar.bz2 | |
hyper-v: trace vmbus_release_relid()
Add tracepoint to CHANNELMSG_RELID_RELEASED 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_mgmt.c | 7 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 16 |
2 files changed, 21 insertions, 2 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index b27edff8796e..ec5454f3f4a6 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -373,12 +373,15 @@ static void percpu_channel_deq(void *arg) static void vmbus_release_relid(u32 relid) { struct vmbus_channel_relid_released msg; + int ret; memset(&msg, 0, sizeof(struct vmbus_channel_relid_released)); msg.child_relid = relid; msg.header.msgtype = CHANNELMSG_RELID_RELEASED; - vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released), - true); + ret = vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released), + true); + + trace_vmbus_release_relid(&msg, ret); } void hv_process_channel_removal(u32 relid) diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index f06284d64a8c..f0e437c3522f 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -258,6 +258,22 @@ TRACE_EVENT(vmbus_negotiate_version, ) ); +TRACE_EVENT(vmbus_release_relid, + TP_PROTO(const struct vmbus_channel_relid_released *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 |