svn commit: r233201 - in stable/8/sys: i386/conf kern net netatalk netinet netinet6 netipx

John Baldwin jhb at FreeBSD.org
Mon Mar 19 20:49:43 UTC 2012


Author: jhb
Date: Mon Mar 19 20:49:42 2012
New Revision: 233201
URL: http://svn.freebsd.org/changeset/base/233201

Log:
  MFC 229621:
  Convert all users of IF_ADDR_LOCK to use new locking macros that specify
  either a read lock or write lock.

Modified:
  stable/8/sys/kern/kern_uuid.c
  stable/8/sys/net/if.c
  stable/8/sys/net/rtsock.c
  stable/8/sys/netatalk/aarp.c
  stable/8/sys/netatalk/at_control.c
  stable/8/sys/netinet/if_ether.c
  stable/8/sys/netinet/igmp.c
  stable/8/sys/netinet/in.c
  stable/8/sys/netinet/in_mcast.c
  stable/8/sys/netinet/in_pcb.c
  stable/8/sys/netinet/in_var.h
  stable/8/sys/netinet/ip_carp.c
  stable/8/sys/netinet/ip_icmp.c
  stable/8/sys/netinet/ip_input.c
  stable/8/sys/netinet/sctp_bsd_addr.c
  stable/8/sys/netinet6/icmp6.c
  stable/8/sys/netinet6/in6.c
  stable/8/sys/netinet6/in6_ifattach.c
  stable/8/sys/netinet6/in6_mcast.c
  stable/8/sys/netinet6/in6_var.h
  stable/8/sys/netinet6/ip6_input.c
  stable/8/sys/netinet6/mld6.c
  stable/8/sys/netinet6/nd6.c
  stable/8/sys/netinet6/nd6_rtr.c
  stable/8/sys/netipx/ipx.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/boot/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/e1000/   (props changed)
  stable/8/sys/i386/conf/XENHVM   (props changed)

Modified: stable/8/sys/kern/kern_uuid.c
==============================================================================
--- stable/8/sys/kern/kern_uuid.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/kern/kern_uuid.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -98,20 +98,20 @@ uuid_node(uint16_t *node)
 	IFNET_RLOCK_NOSLEEP();
 	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
 		/* Walk the address list */
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			sdl = (struct sockaddr_dl*)ifa->ifa_addr;
 			if (sdl != NULL && sdl->sdl_family == AF_LINK &&
 			    sdl->sdl_type == IFT_ETHER) {
 				/* Got a MAC address. */
 				bcopy(LLADDR(sdl), node, UUID_NODE_LEN);
-				IF_ADDR_UNLOCK(ifp);
+				IF_ADDR_RUNLOCK(ifp);
 				IFNET_RUNLOCK_NOSLEEP();
 				CURVNET_RESTORE();
 				return;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	}
 	IFNET_RUNLOCK_NOSLEEP();
 

Modified: stable/8/sys/net/if.c
==============================================================================
--- stable/8/sys/net/if.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/net/if.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -835,10 +835,10 @@ if_purgemaddrs(struct ifnet *ifp)
 	struct ifmultiaddr *ifma;
 	struct ifmultiaddr *next;
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 	TAILQ_FOREACH_SAFE(ifma, &ifp->if_multiaddrs, ifma_link, next)
 		if_delmulti_locked(ifp, ifma, 1);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 }
 
 /*
@@ -1182,10 +1182,10 @@ if_addgroup(struct ifnet *ifp, const cha
 	ifgl->ifgl_group = ifg;
 	ifgm->ifgm_ifp = ifp;
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 	TAILQ_INSERT_TAIL(&ifg->ifg_members, ifgm, ifgm_next);
 	TAILQ_INSERT_TAIL(&ifp->if_groups, ifgl, ifgl_next);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 
 	IFNET_WUNLOCK();
 
@@ -1212,9 +1212,9 @@ if_delgroup(struct ifnet *ifp, const cha
 		return (ENOENT);
 	}
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 	TAILQ_REMOVE(&ifp->if_groups, ifgl, ifgl_next);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 
 	TAILQ_FOREACH(ifgm, &ifgl->ifgl_group->ifg_members, ifgm_next)
 		if (ifgm->ifgm_ifp == ifp)
@@ -1255,9 +1255,9 @@ if_delgroups(struct ifnet *ifp)
 
 		strlcpy(groupname, ifgl->ifgl_group->ifg_group, IFNAMSIZ);
 
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_WLOCK(ifp);
 		TAILQ_REMOVE(&ifp->if_groups, ifgl, ifgl_next);
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_WUNLOCK(ifp);
 
 		TAILQ_FOREACH(ifgm, &ifgl->ifgl_group->ifg_members, ifgm_next)
 			if (ifgm->ifgm_ifp == ifp)
@@ -1299,33 +1299,33 @@ if_getgroup(struct ifgroupreq *data, str
 	struct ifgroupreq	*ifgr = data;
 
 	if (ifgr->ifgr_len == 0) {
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifgl, &ifp->if_groups, ifgl_next)
 			ifgr->ifgr_len += sizeof(struct ifg_req);
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		return (0);
 	}
 
 	len = ifgr->ifgr_len;
 	ifgp = ifgr->ifgr_groups;
 	/* XXX: wire */
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifgl, &ifp->if_groups, ifgl_next) {
 		if (len < sizeof(ifgrq)) {
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_RUNLOCK(ifp);
 			return (EINVAL);
 		}
 		bzero(&ifgrq, sizeof ifgrq);
 		strlcpy(ifgrq.ifgrq_group, ifgl->ifgl_group->ifg_group,
 		    sizeof(ifgrq.ifgrq_group));
 		if ((error = copyout(&ifgrq, ifgp, sizeof(struct ifg_req)))) {
-		    	IF_ADDR_UNLOCK(ifp);
+		    	IF_ADDR_RUNLOCK(ifp);
 			return (error);
 		}
 		len -= sizeof(ifgrq);
 		ifgp++;
 	}
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 
 	return (0);
 }
@@ -1432,28 +1432,28 @@ void
 if_addr_rlock(struct ifnet *ifp)
 {
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 }
 
 void
 if_addr_runlock(struct ifnet *ifp)
 {
 
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 }
 
 void
 if_maddr_rlock(struct ifnet *ifp)
 {
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 }
 
 void
 if_maddr_runlock(struct ifnet *ifp)
 {
 
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 }
 
 /*
@@ -1565,14 +1565,14 @@ ifa_ifwithaddr_internal(struct sockaddr 
 
 	IFNET_RLOCK_NOSLEEP();
 	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			if (ifa->ifa_addr->sa_family != addr->sa_family)
 				continue;
 			if (sa_equal(addr, ifa->ifa_addr)) {
 				if (getref)
 					ifa_ref(ifa);
-				IF_ADDR_UNLOCK(ifp);
+				IF_ADDR_RUNLOCK(ifp);
 				goto done;
 			}
 			/* IP6 doesn't have broadcast */
@@ -1582,11 +1582,11 @@ ifa_ifwithaddr_internal(struct sockaddr 
 			    sa_equal(ifa->ifa_broadaddr, addr)) {
 				if (getref)
 					ifa_ref(ifa);
-				IF_ADDR_UNLOCK(ifp);
+				IF_ADDR_RUNLOCK(ifp);
 				goto done;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	}
 	ifa = NULL;
 done:
@@ -1620,7 +1620,7 @@ ifa_ifwithbroadaddr(struct sockaddr *add
 
 	IFNET_RLOCK_NOSLEEP();
 	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			if (ifa->ifa_addr->sa_family != addr->sa_family)
 				continue;
@@ -1629,11 +1629,11 @@ ifa_ifwithbroadaddr(struct sockaddr *add
 			    ifa->ifa_broadaddr->sa_len != 0 &&
 			    sa_equal(ifa->ifa_broadaddr, addr)) {
 				ifa_ref(ifa);
-				IF_ADDR_UNLOCK(ifp);
+				IF_ADDR_RUNLOCK(ifp);
 				goto done;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	}
 	ifa = NULL;
 done:
@@ -1655,18 +1655,18 @@ ifa_ifwithdstaddr(struct sockaddr *addr)
 	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
 		if ((ifp->if_flags & IFF_POINTOPOINT) == 0)
 			continue;
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			if (ifa->ifa_addr->sa_family != addr->sa_family)
 				continue;
 			if (ifa->ifa_dstaddr != NULL &&
 			    sa_equal(addr, ifa->ifa_dstaddr)) {
 				ifa_ref(ifa);
-				IF_ADDR_UNLOCK(ifp);
+				IF_ADDR_RUNLOCK(ifp);
 				goto done;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	}
 	ifa = NULL;
 done:
@@ -1700,12 +1700,12 @@ ifa_ifwithnet(struct sockaddr *addr, int
 	/*
 	 * Scan though each interface, looking for ones that have addresses
 	 * in this address family.  Maintain a reference on ifa_maybe once
-	 * we find one, as we release the IF_ADDR_LOCK() that kept it stable
+	 * we find one, as we release the IF_ADDR_RLOCK() that kept it stable
 	 * when we move onto the next interface.
 	 */
 	IFNET_RLOCK_NOSLEEP();
 	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			char *cp, *cp2, *cp3;
 
@@ -1724,7 +1724,7 @@ next:				continue;
 				if (ifa->ifa_dstaddr != NULL &&
 				    sa_equal(addr, ifa->ifa_dstaddr)) {
 					ifa_ref(ifa);
-					IF_ADDR_UNLOCK(ifp);
+					IF_ADDR_RUNLOCK(ifp);
 					goto done;
 				}
 			} else {
@@ -1735,7 +1735,7 @@ next:				continue;
 				if (ifa->ifa_claim_addr) {
 					if ((*ifa->ifa_claim_addr)(ifa, addr)) {
 						ifa_ref(ifa);
-						IF_ADDR_UNLOCK(ifp);
+						IF_ADDR_RUNLOCK(ifp);
 						goto done;
 					}
 					continue;
@@ -1775,7 +1775,7 @@ next:				continue;
 				}
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	}
 	ifa = ifa_maybe;
 	ifa_maybe = NULL;
@@ -1801,7 +1801,7 @@ ifaof_ifpforaddr(struct sockaddr *addr, 
 
 	if (af >= AF_MAX)
 		return (NULL);
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 		if (ifa->ifa_addr->sa_family != af)
 			continue;
@@ -1833,7 +1833,7 @@ ifaof_ifpforaddr(struct sockaddr *addr, 
 done:
 	if (ifa != NULL)
 		ifa_ref(ifa);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 	return (ifa);
 }
 
@@ -2410,9 +2410,9 @@ ifhwioctl(u_long cmd, struct ifnet *ifp,
 			 * lose a race while we check if the membership
 			 * already exists.
 			 */
-			IF_ADDR_LOCK(ifp);
+			IF_ADDR_RLOCK(ifp);
 			ifma = if_findmulti(ifp, &ifr->ifr_addr);
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_RUNLOCK(ifp);
 			if (ifma != NULL)
 				error = EADDRINUSE;
 			else
@@ -2828,7 +2828,7 @@ again:
 		}
 
 		addrs = 0;
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			struct sockaddr *sa = ifa->ifa_addr;
 
@@ -2860,7 +2860,7 @@ again:
 			if (!sbuf_overflowed(sb))
 				valid_len = sbuf_len(sb);
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		if (addrs == 0) {
 			bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
 			sbuf_bcat(sb, &ifr, sizeof(ifr));
@@ -3018,13 +3018,13 @@ if_addmulti(struct ifnet *ifp, struct so
 	 * If the address is already present, return a new reference to it;
 	 * otherwise, allocate storage and set up a new address.
 	 */
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 	ifma = if_findmulti(ifp, sa);
 	if (ifma != NULL) {
 		ifma->ifma_refcount++;
 		if (retifma != NULL)
 			*retifma = ifma;
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_WUNLOCK(ifp);
 		return (0);
 	}
 
@@ -3090,7 +3090,7 @@ if_addmulti(struct ifnet *ifp, struct so
 	 * pointer is still valid.
 	 */
 	rt_newmaddrmsg(RTM_NEWMADDR, ifma);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 
 	/*
 	 * We are certain we have added something, so call down to the
@@ -3110,7 +3110,7 @@ free_llsa_out:
 		free(llsa, M_IFMADDR);
 
 unlock_out:
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 	return (error);
 }
 
@@ -3144,12 +3144,12 @@ if_delmulti(struct ifnet *ifp, struct so
 	if (ifp == NULL)
 		return (ENOENT);
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 	lastref = 0;
 	ifma = if_findmulti(ifp, sa);
 	if (ifma != NULL)
 		lastref = if_delmulti_locked(ifp, ifma, 0);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 
 	if (ifma == NULL)
 		return (ENOENT);
@@ -3171,10 +3171,10 @@ if_delallmulti(struct ifnet *ifp)
 	struct ifmultiaddr *ifma;
 	struct ifmultiaddr *next;
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 	TAILQ_FOREACH_SAFE(ifma, &ifp->if_multiaddrs, ifma_link, next)
 		if_delmulti_locked(ifp, ifma, 0);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 }
 
 /*
@@ -3211,7 +3211,7 @@ if_delmulti_ifma(struct ifmultiaddr *ifm
 	 * If and only if the ifnet instance exists: Acquire the address lock.
 	 */
 	if (ifp != NULL)
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_WLOCK(ifp);
 
 	lastref = if_delmulti_locked(ifp, ifma, 0);
 
@@ -3221,7 +3221,7 @@ if_delmulti_ifma(struct ifmultiaddr *ifm
 		 *  Release the address lock.
 		 *  If the group was left: update the hardware hash filter.
 		 */
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_WUNLOCK(ifp);
 		if (lastref && ifp->if_ioctl != NULL) {
 			(void)(*ifp->if_ioctl)(ifp, SIOCDELMULTI, 0);
 		}
@@ -3243,7 +3243,7 @@ if_delmulti_locked(struct ifnet *ifp, st
 	if (ifp != NULL && ifma->ifma_ifp != NULL) {
 		KASSERT(ifma->ifma_ifp == ifp,
 		    ("%s: inconsistent ifp %p", __func__, ifp));
-		IF_ADDR_LOCK_ASSERT(ifp);
+		IF_ADDR_WLOCK_ASSERT(ifp);
 	}
 
 	ifp = ifma->ifma_ifp;
@@ -3316,14 +3316,14 @@ if_setlladdr(struct ifnet *ifp, const u_
 	struct ifaddr *ifa;
 	struct ifreq ifr;
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	ifa = ifp->if_addr;
 	if (ifa == NULL) {
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		return (EINVAL);
 	}
 	ifa_ref(ifa);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 	sdl = (struct sockaddr_dl *)ifa->ifa_addr;
 	if (sdl == NULL) {
 		ifa_free(ifa);

Modified: stable/8/sys/net/rtsock.c
==============================================================================
--- stable/8/sys/net/rtsock.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/net/rtsock.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -479,7 +479,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
 		 * Try to find an address on the given outgoing interface
 		 * that belongs to the jail.
 		 */
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			struct sockaddr *sa;
 			sa = ifa->ifa_addr;
@@ -491,7 +491,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
 				break;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		if (!found) {
 			/*
 			 * As a last resort return the 'default' jail address.
@@ -521,7 +521,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
 		 * Try to find an address on the given outgoing interface
 		 * that belongs to the jail.
 		 */
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			struct sockaddr *sa;
 			sa = ifa->ifa_addr;
@@ -534,7 +534,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
 				break;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		if (!found) {
 			/*
 			 * As a last resort return the 'default' jail address.
@@ -1708,7 +1708,7 @@ sysctl_iflist(int af, struct walkarg *w)
 	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
 		if (w->w_arg && w->w_arg != ifp->if_index)
 			continue;
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		ifa = ifp->if_addr;
 		info.rti_info[RTAX_IFP] = ifa->ifa_addr;
 		len = rt_msg2(RTM_IFINFO, &info, NULL, w);
@@ -1742,13 +1742,13 @@ sysctl_iflist(int af, struct walkarg *w)
 					goto done;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		info.rti_info[RTAX_IFA] = info.rti_info[RTAX_NETMASK] =
 			info.rti_info[RTAX_BRD] = NULL;
 	}
 done:
 	if (ifp != NULL)
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	IFNET_RUNLOCK();
 	return (error);
 }
@@ -1769,7 +1769,7 @@ sysctl_ifmalist(int af, struct walkarg *
 			continue;
 		ifa = ifp->if_addr;
 		info.rti_info[RTAX_IFP] = ifa ? ifa->ifa_addr : NULL;
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 			if (af && af != ifma->ifma_addr->sa_family)
 				continue;
@@ -1790,12 +1790,12 @@ sysctl_ifmalist(int af, struct walkarg *
 				ifmam->ifmam_addrs = info.rti_addrs;
 				error = SYSCTL_OUT(w->w_req, w->w_tmem, len);
 				if (error) {
-					IF_ADDR_UNLOCK(ifp);
+					IF_ADDR_RUNLOCK(ifp);
 					goto done;
 				}
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	}
 done:
 	IFNET_RUNLOCK();

Modified: stable/8/sys/netatalk/aarp.c
==============================================================================
--- stable/8/sys/netatalk/aarp.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netatalk/aarp.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -406,7 +406,7 @@ at_aarpinput(struct ifnet *ifp, struct m
 		 * Since we don't know the net, we just look for the first
 		 * phase 1 address on the interface.
 		 */
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		for (aa = (struct at_ifaddr *)TAILQ_FIRST(&ifp->if_addrhead);
 		    aa;
 		    aa = (struct at_ifaddr *)aa->aa_ifa.ifa_link.tqe_next) {
@@ -416,12 +416,12 @@ at_aarpinput(struct ifnet *ifp, struct m
 			}
 		}
 		if (aa == NULL) {
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_RUNLOCK(ifp);
 			m_freem(m);
 			return;
 		}
 		ifa_ref(&aa->aa_ifa);
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		tpa.s_net = spa.s_net = AA_SAT(aa)->sat_addr.s_net;
 	}
 

Modified: stable/8/sys/netatalk/at_control.c
==============================================================================
--- stable/8/sys/netatalk/at_control.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netatalk/at_control.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -254,9 +254,9 @@ at_control(struct socket *so, u_long cmd
 			 */
 			aa->aa_ifp = ifp;
 			ifa_ref(&aa->aa_ifa);		/* if_addrhead */
-			IF_ADDR_LOCK(ifp);
+			IF_ADDR_WLOCK(ifp);
 			TAILQ_INSERT_TAIL(&ifp->if_addrhead, ifa, ifa_link);
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_WUNLOCK(ifp);
 		} else {
 			/*
 			 * If we DID find one then we clobber any routes
@@ -357,9 +357,9 @@ at_control(struct socket *so, u_long cmd
 		 * remove the ifaddr from the interface
 		 */
 		ifa = (struct ifaddr *)aa;
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_WLOCK(ifp);
 		TAILQ_REMOVE(&ifp->if_addrhead, ifa, ifa_link);
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_WUNLOCK(ifp);
 		ifa_free(ifa);				/* if_addrhead */
 
 		/*

Modified: stable/8/sys/netinet/if_ether.c
==============================================================================
--- stable/8/sys/netinet/if_ether.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netinet/if_ether.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -603,15 +603,15 @@ in_arpinput(struct mbuf *m)
 	 * No match, use the first inet address on the receive interface
 	 * as a dummy address for the rest of the function.
 	 */
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)
 		if (ifa->ifa_addr->sa_family == AF_INET) {
 			ia = ifatoia(ifa);
 			ifa_ref(ifa);
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_RUNLOCK(ifp);
 			goto match;
 		}
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 
 	/*
 	 * If bridging, fall back to using any inet address.

Modified: stable/8/sys/netinet/igmp.c
==============================================================================
--- stable/8/sys/netinet/igmp.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netinet/igmp.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -617,7 +617,7 @@ igmp_ifdetach(struct ifnet *ifp)
 
 	igi = ((struct in_ifinfo *)ifp->if_afdata[AF_INET])->ii_igmp;
 	if (igi->igi_version == IGMP_VERSION_3) {
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 			if (ifma->ifma_addr->sa_family != AF_INET ||
 			    ifma->ifma_protospec == NULL)
@@ -633,7 +633,7 @@ igmp_ifdetach(struct ifnet *ifp)
 			}
 			inm_clear_recorded(inm);
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		/*
 		 * Free the in_multi reference(s) for this IGMP lifecycle.
 		 */
@@ -750,7 +750,7 @@ igmp_input_v1_query(struct ifnet *ifp, c
 	 * for the interface on which the query arrived,
 	 * except those which are already running.
 	 */
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 		if (ifma->ifma_addr->sa_family != AF_INET ||
 		    ifma->ifma_protospec == NULL)
@@ -778,7 +778,7 @@ igmp_input_v1_query(struct ifnet *ifp, c
 			break;
 		}
 	}
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 
 out_locked:
 	IGMP_UNLOCK();
@@ -851,7 +851,7 @@ igmp_input_v2_query(struct ifnet *ifp, c
 		 */
 		CTR2(KTR_IGMPV3, "process v2 general query on ifp %p(%s)",
 		    ifp, ifp->if_xname);
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 			if (ifma->ifma_addr->sa_family != AF_INET ||
 			    ifma->ifma_protospec == NULL)
@@ -859,7 +859,7 @@ igmp_input_v2_query(struct ifnet *ifp, c
 			inm = (struct in_multi *)ifma->ifma_protospec;
 			igmp_v2_update_group(inm, timer);
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	} else {
 		/*
 		 * Group-specific IGMPv2 query, we need only
@@ -1707,7 +1707,7 @@ igmp_fasttimo_vnet(void)
 			IFQ_SET_MAXLEN(&scq, IGMP_MAX_STATE_CHANGE_PACKETS);
 		}
 
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 			if (ifma->ifma_addr->sa_family != AF_INET ||
 			    ifma->ifma_protospec == NULL)
@@ -1725,7 +1725,7 @@ igmp_fasttimo_vnet(void)
 				break;
 			}
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 
 		if (igi->igi_version == IGMP_VERSION_3) {
 			struct in_multi		*tinm;
@@ -2022,7 +2022,7 @@ igmp_v3_cancel_link_timers(struct igmp_i
 	 * for all memberships scoped to this link.
 	 */
 	ifp = igi->igi_ifp;
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 		if (ifma->ifma_addr->sa_family != AF_INET ||
 		    ifma->ifma_protospec == NULL)
@@ -2067,7 +2067,7 @@ igmp_v3_cancel_link_timers(struct igmp_i
 		inm->inm_timer = 0;
 		_IF_DRAIN(&inm->inm_scq);
 	}
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 	SLIST_FOREACH_SAFE(inm, &igi->igi_relinmhead, inm_nrele, tinm) {
 		SLIST_REMOVE_HEAD(&igi->igi_relinmhead, inm_nrele);
 		inm_release_locked(inm);
@@ -3330,7 +3330,7 @@ igmp_v3_dispatch_general_query(struct ig
 
 	ifp = igi->igi_ifp;
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 		if (ifma->ifma_addr->sa_family != AF_INET ||
 		    ifma->ifma_protospec == NULL)
@@ -3361,7 +3361,7 @@ igmp_v3_dispatch_general_query(struct ig
 			break;
 		}
 	}
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 
 	loop = (igi->igi_flags & IGIF_LOOPBACK) ? 1 : 0;
 	igmp_dispatch_queue(&igi->igi_gq, IGMP_MAX_RESPONSE_BURST, loop);

Modified: stable/8/sys/netinet/in.c
==============================================================================
--- stable/8/sys/netinet/in.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netinet/in.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -342,7 +342,7 @@ in_control(struct socket *so, u_long cmd
 		ifa_ref(&ia->ia_ifa);
 	IN_IFADDR_RUNLOCK();
 	if (ia == NULL) {
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			iap = ifatoia(ifa);
 			if (iap->ia_addr.sin_family == AF_INET) {
@@ -356,7 +356,7 @@ in_control(struct socket *so, u_long cmd
 		}
 		if (ia != NULL)
 			ifa_ref(&ia->ia_ifa);
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 	}
 	if (ia == NULL)
 		iaIsFirst = 1;
@@ -420,9 +420,9 @@ in_control(struct socket *so, u_long cmd
 			ia->ia_ifp = ifp;
 
 			ifa_ref(ifa);			/* if_addrhead */
-			IF_ADDR_LOCK(ifp);
+			IF_ADDR_WLOCK(ifp);
 			TAILQ_INSERT_TAIL(&ifp->if_addrhead, ifa, ifa_link);
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_WUNLOCK(ifp);
 			ifa_ref(ifa);			/* in_ifaddrhead */
 			IN_IFADDR_WLOCK();
 			TAILQ_INSERT_TAIL(&V_in_ifaddrhead, ia, ia_link);
@@ -602,7 +602,7 @@ in_control(struct socket *so, u_long cmd
 		panic("in_control: unsupported ioctl");
 	}
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 	/* Re-check that ia is still part of the list. */
 	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 		if (ifa == &ia->ia_ifa)
@@ -614,12 +614,12 @@ in_control(struct socket *so, u_long cmd
 		 * try it again for the next loop as there is no other exit
 		 * path between here and out.
 		 */
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_WUNLOCK(ifp);
 		error = EADDRNOTAVAIL;
 		goto out;
 	}
 	TAILQ_REMOVE(&ifp->if_addrhead, &ia->ia_ifa, ifa_link);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 	ifa_free(&ia->ia_ifa);				/* if_addrhead */
 
 	IN_IFADDR_WLOCK();
@@ -769,7 +769,7 @@ in_lifaddr_ioctl(struct socket *so, u_lo
 			}
 		}
 
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)	{
 			if (ifa->ifa_addr->sa_family != AF_INET)
 				continue;
@@ -782,7 +782,7 @@ in_lifaddr_ioctl(struct socket *so, u_lo
 		}
 		if (ifa != NULL)
 			ifa_ref(ifa);
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 		if (ifa == NULL)
 			return (EADDRNOTAVAIL);
 		ia = (struct in_ifaddr *)ifa;
@@ -1310,7 +1310,7 @@ in_purgemaddrs(struct ifnet *ifp)
 	 * We need to do this as IF_ADDR_LOCK() may be re-acquired
 	 * by code further down.
 	 */
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 		if (ifma->ifma_addr->sa_family != AF_INET ||
 		    ifma->ifma_protospec == NULL)
@@ -1322,7 +1322,7 @@ in_purgemaddrs(struct ifnet *ifp)
 		inm = (struct in_multi *)ifma->ifma_protospec;
 		LIST_INSERT_HEAD(&purgeinms, inm, inm_link);
 	}
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 
 	LIST_FOREACH_SAFE(inm, &purgeinms, inm_link, tinm) {
 		LIST_REMOVE(inm, inm_link);

Modified: stable/8/sys/netinet/in_mcast.c
==============================================================================
--- stable/8/sys/netinet/in_mcast.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netinet/in_mcast.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -421,7 +421,7 @@ in_getmulti(struct ifnet *ifp, const str
 		return (error);
 
 	/* XXX ifma_protospec must be covered by IF_ADDR_LOCK */
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_WLOCK(ifp);
 
 	/*
 	 * If something other than netinet is occupying the link-layer
@@ -445,11 +445,11 @@ in_getmulti(struct ifnet *ifp, const str
 #endif
 		++inm->inm_refcount;
 		*pinm = inm;
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_WUNLOCK(ifp);
 		return (0);
 	}
 
-	IF_ADDR_LOCK_ASSERT(ifp);
+	IF_ADDR_WLOCK_ASSERT(ifp);
 
 	/*
 	 * A new in_multi record is needed; allocate and initialize it.
@@ -461,7 +461,7 @@ in_getmulti(struct ifnet *ifp, const str
 	inm = malloc(sizeof(*inm), M_IPMADDR, M_NOWAIT | M_ZERO);
 	if (inm == NULL) {
 		if_delmulti_ifma(ifma);
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_WUNLOCK(ifp);
 		return (ENOMEM);
 	}
 	inm->inm_addr = *group;
@@ -484,7 +484,7 @@ in_getmulti(struct ifnet *ifp, const str
 
 	*pinm = inm;
 
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_WUNLOCK(ifp);
 	return (0);
 }
 
@@ -2775,7 +2775,7 @@ sysctl_ip_mcast_filters(SYSCTL_HANDLER_A
 
 	IN_MULTI_LOCK();
 
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 		if (ifma->ifma_addr->sa_family != AF_INET ||
 		    ifma->ifma_protospec == NULL)
@@ -2808,7 +2808,7 @@ sysctl_ip_mcast_filters(SYSCTL_HANDLER_A
 				break;
 		}
 	}
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 
 	IN_MULTI_UNLOCK();
 

Modified: stable/8/sys/netinet/in_pcb.c
==============================================================================
--- stable/8/sys/netinet/in_pcb.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netinet/in_pcb.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -661,7 +661,7 @@ in_pcbladdr(struct inpcb *inp, struct in
 		ifp = ia->ia_ifp;
 		ifa_free(&ia->ia_ifa);
 		ia = NULL;
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 
 			sa = ifa->ifa_addr;
@@ -675,10 +675,10 @@ in_pcbladdr(struct inpcb *inp, struct in
 		}
 		if (ia != NULL) {
 			laddr->s_addr = ia->ia_addr.sin_addr.s_addr;
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_RUNLOCK(ifp);
 			goto done;
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 
 		/* 3. As a last resort return the 'default' jail address. */
 		error = prison_get_ip4(cred, laddr);
@@ -720,7 +720,7 @@ in_pcbladdr(struct inpcb *inp, struct in
 		 */
 		ia = NULL;
 		ifp = sro.ro_rt->rt_ifp;
-		IF_ADDR_LOCK(ifp);
+		IF_ADDR_RLOCK(ifp);
 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 			sa = ifa->ifa_addr;
 			if (sa->sa_family != AF_INET)
@@ -733,10 +733,10 @@ in_pcbladdr(struct inpcb *inp, struct in
 		}
 		if (ia != NULL) {
 			laddr->s_addr = ia->ia_addr.sin_addr.s_addr;
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_RUNLOCK(ifp);
 			goto done;
 		}
-		IF_ADDR_UNLOCK(ifp);
+		IF_ADDR_RUNLOCK(ifp);
 
 		/* 3. As a last resort return the 'default' jail address. */
 		error = prison_get_ip4(cred, laddr);
@@ -784,7 +784,7 @@ in_pcbladdr(struct inpcb *inp, struct in
 			ifp = ia->ia_ifp;
 			ifa_free(&ia->ia_ifa);
 			ia = NULL;
-			IF_ADDR_LOCK(ifp);
+			IF_ADDR_RLOCK(ifp);
 			TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 
 				sa = ifa->ifa_addr;
@@ -799,10 +799,10 @@ in_pcbladdr(struct inpcb *inp, struct in
 			}
 			if (ia != NULL) {
 				laddr->s_addr = ia->ia_addr.sin_addr.s_addr;
-				IF_ADDR_UNLOCK(ifp);
+				IF_ADDR_RUNLOCK(ifp);
 				goto done;
 			}
-			IF_ADDR_UNLOCK(ifp);
+			IF_ADDR_RUNLOCK(ifp);
 		}
 
 		/* 3. As a last resort return the 'default' jail address. */

Modified: stable/8/sys/netinet/in_var.h
==============================================================================
--- stable/8/sys/netinet/in_var.h	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netinet/in_var.h	Mon Mar 19 20:49:42 2012	(r233201)
@@ -396,9 +396,9 @@ inm_lookup(struct ifnet *ifp, const stru
 	struct in_multi *inm;
 
 	IN_MULTI_LOCK_ASSERT();
-	IF_ADDR_LOCK(ifp);
+	IF_ADDR_RLOCK(ifp);
 	inm = inm_lookup_locked(ifp, ina);
-	IF_ADDR_UNLOCK(ifp);
+	IF_ADDR_RUNLOCK(ifp);
 
 	return (inm);
 }

Modified: stable/8/sys/netinet/ip_carp.c
==============================================================================
--- stable/8/sys/netinet/ip_carp.c	Mon Mar 19 20:49:16 2012	(r233200)
+++ stable/8/sys/netinet/ip_carp.c	Mon Mar 19 20:49:42 2012	(r233201)
@@ -279,7 +279,7 @@ carp_hmac_prepare(struct carp_softc *sc)
 		found = 0;
 		last = cur;
 		cur.s_addr = 0xffffffff;
-		IF_ADDR_LOCK(SC2IFP(sc));
+		IF_ADDR_RLOCK(SC2IFP(sc));
 		TAILQ_FOREACH(ifa, &SC2IFP(sc)->if_addrlist, ifa_list) {
 			in.s_addr = ifatoia(ifa)->ia_addr.sin_addr.s_addr;
 			if (ifa->ifa_addr->sa_family == AF_INET &&
@@ -289,7 +289,7 @@ carp_hmac_prepare(struct carp_softc *sc)
 				found++;
 			}
 		}
-		IF_ADDR_UNLOCK(SC2IFP(sc));
+		IF_ADDR_RUNLOCK(SC2IFP(sc));
 		if (found)
 			SHA1Update(&sc->sc_sha1, (void *)&cur, sizeof(cur));
 	} while (found);
@@ -300,7 +300,7 @@ carp_hmac_prepare(struct carp_softc *sc)
 		found = 0;
 		last6 = cur6;
 		memset(&cur6, 0xff, sizeof(cur6));
-		IF_ADDR_LOCK(SC2IFP(sc));
+		IF_ADDR_RLOCK(SC2IFP(sc));
 		TAILQ_FOREACH(ifa, &SC2IFP(sc)->if_addrlist, ifa_list) {
 			in6 = ifatoia6(ifa)->ia_addr.sin6_addr;
 			if (IN6_IS_SCOPE_EMBED(&in6))
@@ -312,7 +312,7 @@ carp_hmac_prepare(struct carp_softc *sc)
 				found++;
 			}
 		}
-		IF_ADDR_UNLOCK(SC2IFP(sc));
+		IF_ADDR_RUNLOCK(SC2IFP(sc));
 		if (found)
 			SHA1Update(&sc->sc_sha1, (void *)&cur6, sizeof(cur6));
 	} while (found);
@@ -1138,7 +1138,7 @@ carp_addrcount(struct carp_if *cif, stru
 		    (SC2IFP(vh)->if_flags & IFF_UP) &&
 		    (SC2IFP(vh)->if_drv_flags & IFF_DRV_RUNNING)) ||
 		    (type == CARP_COUNT_MASTER && vh->sc_state == MASTER)) {
-			IF_ADDR_LOCK(SC2IFP(vh));
+			IF_ADDR_RLOCK(SC2IFP(vh));
 			TAILQ_FOREACH(ifa, &SC2IFP(vh)->if_addrlist,
 			    ifa_list) {
 				if (ifa->ifa_addr->sa_family == AF_INET &&
@@ -1146,7 +1146,7 @@ carp_addrcount(struct carp_if *cif, stru
 				    ifatoia(ifa)->ia_addr.sin_addr.s_addr)
 					count++;
 			}
-			IF_ADDR_UNLOCK(SC2IFP(vh));
+			IF_ADDR_RUNLOCK(SC2IFP(vh));
 		}
 	}
 	return (count);
@@ -1186,7 +1186,7 @@ carp_iamatch(struct ifnet *ifp, struct i
 		TAILQ_FOREACH(vh, &cif->vhif_vrs, sc_list) {
 			if ((SC2IFP(vh)->if_flags & IFF_UP) &&
 			    (SC2IFP(vh)->if_drv_flags & IFF_DRV_RUNNING)) {
-				IF_ADDR_LOCK(SC2IFP(vh));
+				IF_ADDR_RLOCK(SC2IFP(vh));
 				TAILQ_FOREACH(ifa, &SC2IFP(vh)->if_addrlist,
 				    ifa_list) {
 					if (ifa->ifa_addr->sa_family ==
@@ -1197,11 +1197,11 @@ carp_iamatch(struct ifnet *ifp, struct i
 							if (vh->sc_state ==
 							    MASTER) {
 								*enaddr = IF_LLADDR(vh->sc_ifp);
-								IF_ADDR_UNLOCK(SC2IFP(vh));
+								IF_ADDR_RUNLOCK(SC2IFP(vh));

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***


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