Author: glebius
Date: Wed Jul 18 08:41:00 2012
New Revision: 238572
URL: http://svn.freebsd.org/changeset/base/238572
Log:
When traversing global in_ifaddr list in the IFP_TO_IA() macro, we need
to obtain IN_IFADDR_RLOCK().
Modified:
head/sys/netinet/in_var.h
Modified: head/sys/netinet/in_var.h
==============================================================================
--- head/sys/netinet/in_var.h Wed Jul 18 08:37:08 2012 (r238571)
+++ head/sys/netinet/in_var.h Wed Jul 18 08:41:00 2012 (r238572)
@@ -161,14 +161,16 @@ do { \
#define IFP_TO_IA(ifp, ia) \
/* struct ifnet *ifp; */ \
/* struct in_ifaddr *ia; */ \
-{ \
+do { \
+ IN_IFADDR_RLOCK(); \
for ((ia) = TAILQ_FIRST(&V_in_ifaddrhead); \
(ia) != NULL && (ia)->ia_ifp != (ifp); \
(ia) = TAILQ_NEXT((ia), ia_link)) \
continue; \
if ((ia) != NULL) \
ifa_ref(&(ia)->ia_ifa); \
-}
+ IN_IFADDR_RUNLOCK(); \
+} while (0)
#endif
/*
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