afs: Add a tracepoint to record callbacks from unlisted servers (3709a399) · Commits · 戴 / test

fs/afs/cmservice.c

+9 −3

Original line number	Diff line number	Diff line
		@@ -287,8 +287,10 @@ static int afs_deliver_cb_callback(struct afs_call *call)
		* vnodes to operate upon */
		rxrpc_kernel_get_peer(call->net->socket, call->rxcall, &srx);
		server = afs_find_server(call->net, &srx);
		if (!server)
		if (!server) {
		trace_afs_cm_no_server(call, &srx);
		return -ENOTCONN;
		}
		call->cm_server = server;

		return afs_queue_call_work(call);
		@@ -329,8 +331,10 @@ static int afs_deliver_cb_init_call_back_state(struct afs_call *call)
		/* we'll need the file server record as that tells us which set of
		* vnodes to operate upon */
		server = afs_find_server(call->net, &srx);
		if (!server)
		if (!server) {
		trace_afs_cm_no_server(call, &srx);
		return -ENOTCONN;
		}
		call->cm_server = server;

		return afs_queue_call_work(call);
		@@ -400,8 +404,10 @@ static int afs_deliver_cb_init_call_back_state3(struct afs_call *call)
		rcu_read_lock();
		server = afs_find_server_by_uuid(call->net, call->request);
		rcu_read_unlock();
		if (!server)
		if (!server) {
		trace_afs_cm_no_server_u(call, call->request);
		return -ENOTCONN;
		}
		call->cm_server = server;

		return afs_queue_call_work(call);

+42 −0

Original line number	Diff line number	Diff line
		@@ -575,6 +575,48 @@ TRACE_EVENT(afs_protocol_error,
		__entry->call, __entry->error, __entry->where)
		);

		TRACE_EVENT(afs_cm_no_server,
		TP_PROTO(struct afs_call call, struct sockaddr_rxrpc srx),

		TP_ARGS(call, srx),

		TP_STRUCT__entry(
		__field(unsigned int, call )
		__field(unsigned int, op_id )
		__field_struct(struct sockaddr_rxrpc, srx )
		),

		TP_fast_assign(
		__entry->call = call->debug_id;
		__entry->op_id = call->operation_ID;
		memcpy(&__entry->srx, srx, sizeof(__entry->srx));
		),

		TP_printk("c=%08x op=%u %pISpc",
		__entry->call, __entry->op_id, &__entry->srx.transport)
		);

		TRACE_EVENT(afs_cm_no_server_u,
		TP_PROTO(struct afs_call call, const uuid_t uuid),

		TP_ARGS(call, uuid),

		TP_STRUCT__entry(
		__field(unsigned int, call )
		__field(unsigned int, op_id )
		__field_struct(uuid_t, uuid )
		),

		TP_fast_assign(
		__entry->call = call->debug_id;
		__entry->op_id = call->operation_ID;
		memcpy(&__entry->uuid, uuid, sizeof(__entry->uuid));
		),

		TP_printk("c=%08x op=%u %pU",
		__entry->call, __entry->op_id, &__entry->uuid)
		);

		#endif /* _TRACE_AFS_H */

		/* This part must be outside protection */