From 87628fd213cbfdff692cb411ac64d4f006a8e6e4 Mon Sep 17 00:00:00 2001
From: julian <julian@FreeBSD.org>
Date: Sun, 14 Sep 2008 10:22:37 +0000
Subject: come on Julian, make up if you're committing one change or the other.
 fix braino

---
 sys/net/route.c |  2 +-
 sys/net/route.h | 40 ++++++++++++++++++++++++++++------------
 2 files changed, 29 insertions(+), 13 deletions(-)

(limited to 'sys/net')

diff --git a/sys/net/route.c b/sys/net/route.c
index 95c46ca..6bcb591 100644
--- a/sys/net/route.c
+++ b/sys/net/route.c
@@ -1698,7 +1698,7 @@ rt_check(struct rtentry **lrt, struct rtentry **lrt0, struct sockaddr *dst)
 
 	KASSERT(*lrt0 != NULL, ("rt_check"));
 	rt = rt0 = *lrt0;
-	fibnum = (*rt0)->rt_fibnum;
+	fibnum = rt0->rt_fibnum;
 
 	/* NB: the locking here is tortuous... */
 	RT_LOCK(rt);
diff --git a/sys/net/route.h b/sys/net/route.h
index 2c9afb2..249a41e 100644
--- a/sys/net/route.h
+++ b/sys/net/route.h
@@ -316,20 +316,36 @@ struct rt_addrinfo {
 } while (0)
 
 #define	RTFREE_LOCKED(_rt) do {					\
-		if ((_rt)->rt_refcnt <= 1)			\
-			rtfree(_rt);				\
-		else {						\
-			RT_REMREF(_rt);				\
-			RT_UNLOCK(_rt);				\
-		}						\
-		/* guard against invalid refs */		\
-		_rt = 0;					\
-	} while (0)
+	if ((_rt)->rt_refcnt <= 1)				\
+		rtfree(_rt);					\
+	else {							\
+		RT_REMREF(_rt);					\
+		RT_UNLOCK(_rt);					\
+	}							\
+	/* guard against invalid refs */			\
+	_rt = 0;						\
+} while (0)
 
 #define	RTFREE(_rt) do {					\
-		RT_LOCK(_rt);					\
-		RTFREE_LOCKED(_rt);				\
-	} while (0)
+	RT_LOCK(_rt);						\
+	RTFREE_LOCKED(_rt);					\
+} while (0)
+
+#define RT_TEMP_UNLOCK(_rt) do {				\
+	RT_ADDREF(_rt);						\
+	RT_UNLOCK(_rt);						\
+} while (0)
+
+#define RT_RELOCK(_rt) do {					\
+	RT_LOCK(_rt);						\
+	if ((_rt)->rt_refcnt <= 1) {				\
+		rtfree(_rt);					\
+		_rt = 0; /*  signal that it went away */	\
+	} else {						\
+		RT_REMREF(_rt);					\
+		/* note that _rt is still valid */		\
+	}							\
+} while (0)
 
 extern struct radix_node_head *rt_tables[][AF_MAX+1];
 
-- 
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