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Code Issues Releases Wiki Activity

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>
This commit is contained in:
Vitaly Kuznetsov 2017-10-29 12:21:14 -07:00 committed by Greg Kroah-Hartman
parent 034ebf552e
commit 259cc665e9
2 changed files with 21 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/hv/channel_mgmt.c
View File

@ -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)

16
drivers/hv/hv_trace.h
View File

@ -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