Commit 259cc665 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Greg Kroah-Hartman
Browse files

hyper-v: trace vmbus_release_relid() 



Add tracepoint to CHANNELMSG_RELID_RELEASED sender.

Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 034ebf55

drivers/hv/channel_mgmt.c

+5 −2
Original line number Diff line number Diff line
@@ -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),

	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)

drivers/hv/hv_trace.h

+16 −0
Original line number Diff line number Diff line
@@ -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