CVS commit: src/sys/netinet6

[Ryota Ozaki]

Module Name:    src
Committed By:   ozaki-r
Date:           Wed Feb 22 07:05:47 UTC 2017

Modified Files:
        src/sys/netinet6: nd6_rtr.c

Log Message:
Get rid of unnecessary splsoftnet


To generate a diff of this commit:
cvs rdiff -u -r1.132 -r1.133 src/sys/netinet6/nd6_rtr.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/netinet6/nd6_rtr.c
diff -u src/sys/netinet6/nd6_rtr.c:1.132 src/sys/netinet6/nd6_rtr.c:1.133
--- src/sys/netinet6/nd6_rtr.c:1.132	Wed Feb 22 03:02:55 2017
+++ src/sys/netinet6/nd6_rtr.c	Wed Feb 22 07:05:47 2017
@@ -1,4 +1,4 @@
-/*	$NetBSD: nd6_rtr.c,v 1.132 2017/02/22 03:02:55 ozaki-r Exp $	*/
+/*	$NetBSD: nd6_rtr.c,v 1.133 2017/02/22 07:05:47 ozaki-r Exp $	*/
 /*	$KAME: nd6_rtr.c,v 1.95 2001/02/07 08:09:47 itojun Exp $	*/
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nd6_rtr.c,v 1.132 2017/02/22 03:02:55 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nd6_rtr.c,v 1.133 2017/02/22 07:05:47 ozaki-r Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -463,7 +463,6 @@ defrouter_addreq(struct nd_defrouter *ne
 		struct sockaddr_in6 sin6;
 		struct sockaddr sa;
 	} def, mask, gate;
-	int s;
 	int error;
 
 	memset(&def, 0, sizeof(def));
@@ -478,14 +477,15 @@ defrouter_addreq(struct nd_defrouter *ne
 	gate.sin6.sin6_scope_id = 0;	/* XXX */
 #endif
 
-	s = splsoftnet();
+#ifndef NET_MPSAFE
+	KASSERT(mutex_owned(softnet_lock));
+#endif
 	error = rtrequest_newmsg(RTM_ADD, &def.sa, &gate.sa, &mask.sa,
 	    RTF_GATEWAY);
 	if (error == 0) {
 		nd6_numroutes++;
 		newdr->installed = 1;
 	}
-	splx(s);
 	return;
 }
 
@@ -956,7 +956,7 @@ nd6_prelist_add(struct nd_prefixctl *prc
 	struct nd_prefix **newp)
 {
 	struct nd_prefix *newpr = NULL;
-	int i, s;
+	int i;
 	int error;
 	struct in6_ifextra *ext = prc->ndprc_ifp->if_afdata[AF_INET6];
 
@@ -996,10 +996,8 @@ nd6_prelist_add(struct nd_prefixctl *prc
 		    newpr->ndpr_mask.s6_addr32[i];
 	}
 
-	s = splsoftnet();
 	/* link ndpr_entry to nd_prefix list */
 	ND_PREFIX_LIST_INSERT_HEAD(newpr);
-	splx(s);
 
 	/* ND_OPT_PI_FLAG_ONLINK processing */
 	if (newpr->ndpr_raf_onlink) {
@@ -1067,7 +1065,6 @@ void
 nd6_prelist_remove(struct nd_prefix *pr)
 {
 	struct nd_pfxrouter *pfr, *next;
-	int s;
 	struct in6_ifextra *ext = pr->ndpr_ifp->if_afdata[AF_INET6];
 
 	ND6_ASSERT_WLOCK();
@@ -1075,7 +1072,6 @@ nd6_prelist_remove(struct nd_prefix *pr)
 
 	nd6_invalidate_prefix(pr);
 
-	s = splsoftnet();
 	/* unlink ndpr_entry from nd_prefix list */
 	ND_PREFIX_LIST_REMOVE(pr);
 
@@ -1093,7 +1089,6 @@ nd6_prelist_remove(struct nd_prefix *pr)
 			    "%s\n", pr->ndpr_ifp->if_xname);
 		}
 	}
-	splx(s);
 
 	free(pr, M_IP6NDP);
 
@@ -2222,16 +2217,16 @@ in6_init_address_ltimes(struct nd_prefix
 void
 nd6_rt_flush(struct in6_addr *gateway, struct ifnet *ifp)
 {
-	int s = splsoftnet();
+
+#ifndef NET_MPSAFE
+	KASSERT(mutex_owned(softnet_lock));
+#endif
 
 	/* We'll care only link-local addresses */
-	if (!IN6_IS_ADDR_LINKLOCAL(gateway)) {
-		splx(s);
+	if (!IN6_IS_ADDR_LINKLOCAL(gateway))
 		return;
-	}
 
 	rt_delete_matched_entries(AF_INET6, rt6_deleteroute_matcher, gateway);
-	splx(s);
 }
 
 static int