From f8335a212ac1495da3e9d98ff46c4bcd6a359011 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Mon, 12 Jun 2023 10:13:33 -0400 Subject: SUNRPC: Move initialization of rq_stime Micro-optimization: Call ktime_get() only when ->xpo_recvfrom() has given us a full RPC message to process. rq_stime isn't used otherwise, so this avoids pointless work. Reviewed-by: Jeff Layton Acked-by: Tom Talpey Signed-off-by: Chuck Lever --- net/sunrpc/svc_xprt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net') diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 9ca3393a197e..79b88889f073 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -849,7 +849,6 @@ static int svc_handle_xprt(struct svc_rqst *rqstp, struct svc_xprt *xprt) len = svc_deferred_recv(rqstp); else len = xprt->xpt_ops->xpo_recvfrom(rqstp); - rqstp->rq_stime = ktime_get(); rqstp->rq_reserved = serv->sv_max_mesg; atomic_add(rqstp->rq_reserved, &xprt->xpt_reserved); } else @@ -892,6 +891,7 @@ int svc_recv(struct svc_rqst *rqstp, long timeout) err = -EAGAIN; if (len <= 0) goto out_release; + trace_svc_xdr_recvfrom(&rqstp->rq_arg); clear_bit(XPT_OLD, &xprt->xpt_flags); @@ -900,6 +900,7 @@ int svc_recv(struct svc_rqst *rqstp, long timeout) if (serv->sv_stats) serv->sv_stats->netcnt++; + rqstp->rq_stime = ktime_get(); return len; out_release: rqstp->rq_res.len = 0; -- cgit v1.2.3