Commit 4b8f380e authored by Chuck Lever's avatar Chuck Lever
Browse files

SUNRPC: Tracepoint to record errors in svc_xpo_create() 



Capture transport creation failures.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent e3e67621

include/trace/events/sunrpc.h

+29 −0
Original line number Diff line number Diff line
@@ -1167,6 +1167,35 @@ DEFINE_EVENT(svc_rqst_status, svc_send, 
		{ (1UL << XPT_KILL_TEMP),	"XPT_KILL_TEMP"},	\

		{ (1UL << XPT_CONG_CTRL),	"XPT_CONG_CTRL"})



TRACE_EVENT(svc_xprt_create_err,

	TP_PROTO(

		const char *program,

		const char *protocol,

		struct sockaddr *sap,

		const struct svc_xprt *xprt

	),



	TP_ARGS(program, protocol, sap, xprt),



	TP_STRUCT__entry(

		__field(long, error)

		__string(program, program)

		__string(protocol, protocol)

		__array(unsigned char, addr, sizeof(struct sockaddr_in6))

	),



	TP_fast_assign(

		__entry->error = PTR_ERR(xprt);

		__assign_str(program, program);

		__assign_str(protocol, protocol);

		memcpy(__entry->addr, sap, sizeof(__entry->addr));

	),



	TP_printk("addr=%pISpc program=%s protocol=%s error=%ld",

		__entry->addr, __get_str(program), __get_str(protocol),

		__entry->error)

);



TRACE_EVENT(svc_xprt_do_enqueue,

	TP_PROTO(struct svc_xprt *xprt, struct svc_rqst *rqst),

net/sunrpc/svc_xprt.c

+6 −1
Original line number Diff line number Diff line
@@ -206,6 +206,7 @@ static struct svc_xprt *__svc_xpo_create(struct svc_xprt_class *xcl, 
		.sin6_port		= htons(port),

	};

#endif

	struct svc_xprt *xprt;

	struct sockaddr *sap;

	size_t len;
@@ -224,7 +225,11 @@ static struct svc_xprt *__svc_xpo_create(struct svc_xprt_class *xcl, 
		return ERR_PTR(-EAFNOSUPPORT);

	}



	return xcl->xcl_ops->xpo_create(serv, net, sap, len, flags);

	xprt = xcl->xcl_ops->xpo_create(serv, net, sap, len, flags);

	if (IS_ERR(xprt))

		trace_svc_xprt_create_err(serv->sv_program->pg_name,

					  xcl->xcl_name, sap, xprt);

	return xprt;

}



/*