svn commit: r342841 - stable/12/usr.sbin/mountd

[Sean Eric Fagan]

Author: sef
Date: Mon Jan  7 05:58:55 2019
New Revision: 342841
URL: https://svnweb.freebsd.org/changeset/base/342841

Log:
  MFC r341641: Reduce number of DNS queries in mountd.
  
  Approved by:	mav
  Sponsored by:	iXsystems Inc.

Modified:
  stable/12/usr.sbin/mountd/mountd.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/usr.sbin/mountd/mountd.c
==============================================================================
--- stable/12/usr.sbin/mountd/mountd.c	Mon Jan  7 05:49:27 2019	(r342840)
+++ stable/12/usr.sbin/mountd/mountd.c	Mon Jan  7 05:58:55 2019	(r342841)
@@ -1026,8 +1026,13 @@ mntsrv(struct svc_req *rqstp, SVCXPRT *transp)
 		syslog(LOG_ERR, "request from unknown address family");
 		return;
 	}
-	lookup_failed = getnameinfo(saddr, saddr->sa_len, host, sizeof host, 
-	    NULL, 0, 0);
+	switch (rqstp->rq_proc) {
+	case MOUNTPROC_MNT:
+	case MOUNTPROC_UMNT:
+	case MOUNTPROC_UMNTALL:
+		lookup_failed = getnameinfo(saddr, saddr->sa_len, host,
+		    sizeof host, NULL, 0, 0);
+	}
 	getnameinfo(saddr, saddr->sa_len, numerichost,
 	    sizeof numerichost, NULL, 0, NI_NUMERICHOST);
 	switch (rqstp->rq_proc) {