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From: Kip Macy <kmacy@FreeBSD.org>
Date: Mon, 3 Nov 2008 03:18:29 +0000 (UTC)
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Subject: svn commit: r184576 - user/kmacy/HEAD_fast_xmit/sys/netinet
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Author: kmacy
Date: Mon Nov  3 03:18:29 2008
New Revision: 184576
URL: http://svn.freebsd.org/changeset/base/184576

Log:
  Be more parsimonious about route cloning.

Modified:
  user/kmacy/HEAD_fast_xmit/sys/netinet/if_ether.c

Modified: user/kmacy/HEAD_fast_xmit/sys/netinet/if_ether.c
==============================================================================
--- user/kmacy/HEAD_fast_xmit/sys/netinet/if_ether.c	Mon Nov  3 03:17:56 2008	(r184575)
+++ user/kmacy/HEAD_fast_xmit/sys/netinet/if_ether.c	Mon Nov  3 03:18:29 2008	(r184576)
@@ -419,7 +419,11 @@ arpresolve(struct ifnet *ifp, struct rte
 		 * come from the local interface should have a ll entry.
 		 * It may be incomplete but that's ok.
 		 */
-		rt = arplookup(SIN(dst)->sin_addr.s_addr, 1, 0, fibnum);
+		/*
+		 * Only create a cloned route if one doesn't exist for this
+		 * address
+		 */
+		rt = arplookup(SIN(dst)->sin_addr.s_addr, (rt != NULL), 0, fibnum);
 		if (rt == NULL) {
 			log(LOG_DEBUG,
 			    "arpresolve: can't allocate route for %s\n",