From 41f306d0c287e0cc04054135f9f4ceb003ad6795 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 27 Mar 2018 10:50:42 -0400 Subject: [PATCH] sunrpc: Simplify trace_svc_recv There doesn't seem to be a lot of value in calling trace_svc_recv in the failing case. 1. There are two very common cases: one is the transport is not ready, and the other is shutdown. Neither is terribly interesting. 2. The trace record for the failing case contains nothing but the status code. Therefore the trace point call site in the error exit is removed. Since the trace point is now recording a length instead of a status, rename the status field and remove the case that records a zero XID. Signed-off-by: Chuck Lever Signed-off-by: J. Bruce Fields --- include/trace/events/sunrpc.h | 14 +++++++------- net/sunrpc/svc_xprt.c | 1 - 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 9bba3070f873..5849bfb3ece2 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -485,28 +485,28 @@ TRACE_EVENT(xs_tcp_data_recv, { (1UL << RQ_BUSY), "RQ_BUSY"}) TRACE_EVENT(svc_recv, - TP_PROTO(struct svc_rqst *rqst, int status), + TP_PROTO(struct svc_rqst *rqst, int len), - TP_ARGS(rqst, status), + TP_ARGS(rqst, len), TP_STRUCT__entry( __field(u32, xid) - __field(int, status) + __field(int, len) __field(unsigned long, flags) __dynamic_array(unsigned char, addr, rqst->rq_addrlen) ), TP_fast_assign( - __entry->xid = status > 0 ? be32_to_cpu(rqst->rq_xid) : 0; - __entry->status = status; + __entry->xid = be32_to_cpu(rqst->rq_xid); + __entry->len = len; __entry->flags = rqst->rq_flags; memcpy(__get_dynamic_array(addr), &rqst->rq_addr, rqst->rq_addrlen); ), - TP_printk("addr=%pIScp xid=0x%08x status=%d flags=%s", + TP_printk("addr=%pIScp xid=0x%08x len=%d flags=%s", (struct sockaddr *)__get_dynamic_array(addr), - __entry->xid, __entry->status, + __entry->xid, __entry->len, show_rqstp_flags(__entry->flags)) ); diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 5fe150c78d0a..47384d0b1673 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -848,7 +848,6 @@ out_release: rqstp->rq_res.len = 0; svc_xprt_release(rqstp); out: - trace_svc_recv(rqstp, err); return err; } EXPORT_SYMBOL_GPL(svc_recv); -- 2.30.2