diff options
| author | hsu <hsu@FreeBSD.org> | 2002-12-22 05:35:03 +0000 |
|---|---|---|
| committer | hsu <hsu@FreeBSD.org> | 2002-12-22 05:35:03 +0000 |
| commit | 82e1e3bab0d3abe1018a0b56559c154485f2f676 (patch) | |
| tree | d0f9ee7e6f9d8014e6f8f94ab6965e85c268792e /sys/netinet6/in6_ifattach.c | |
| parent | 2afef11c570b7b725c3145fc710f8dcd8d7ed4e0 (diff) | |
| download | FreeBSD-src-82e1e3bab0d3abe1018a0b56559c154485f2f676.zip FreeBSD-src-82e1e3bab0d3abe1018a0b56559c154485f2f676.tar.gz | |
SMP locking for ifnet list.
Diffstat (limited to 'sys/netinet6/in6_ifattach.c')
| -rw-r--r-- | sys/netinet6/in6_ifattach.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/netinet6/in6_ifattach.c b/sys/netinet6/in6_ifattach.c index 9150a36..5abcca1 100644 --- a/sys/netinet6/in6_ifattach.c +++ b/sys/netinet6/in6_ifattach.c @@ -381,6 +381,7 @@ get_ifid(ifp0, altifp, in6) } /* next, try to get it from some other hardware interface */ + IFNET_RLOCK(); for (ifp = ifnet.tqh_first; ifp; ifp = ifp->if_list.tqe_next) { if (ifp == ifp0) @@ -396,9 +397,11 @@ get_ifid(ifp0, altifp, in6) nd6log((LOG_DEBUG, "%s: borrow interface identifier from %s\n", if_name(ifp0), if_name(ifp))); + IFNET_RUNLOCK(); goto success; } } + IFNET_RUNLOCK(); /* last resort: get from random number source */ if (get_rand_ifid(ifp, in6) == 0) { @@ -688,6 +691,7 @@ in6_nigroup_attach(name, namelen) if (in6_nigroup(NULL, name, namelen, &mltaddr.sin6_addr) != 0) return; + IFNET_RLOCK(); for (ifp = ifnet.tqh_first; ifp; ifp = ifp->if_list.tqe_next) { mltaddr.sin6_addr.s6_addr16[1] = htons(ifp->if_index); @@ -701,6 +705,7 @@ in6_nigroup_attach(name, namelen) } } } + IFNET_RUNLOCK(); } void @@ -718,6 +723,7 @@ in6_nigroup_detach(name, namelen) if (in6_nigroup(NULL, name, namelen, &mltaddr.sin6_addr) != 0) return; + IFNET_RLOCK(); for (ifp = ifnet.tqh_first; ifp; ifp = ifp->if_list.tqe_next) { mltaddr.sin6_addr.s6_addr16[1] = htons(ifp->if_index); @@ -725,6 +731,7 @@ in6_nigroup_detach(name, namelen) if (in6m) in6_delmulti(in6m); } + IFNET_RUNLOCK(); } /* |
