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Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
-rw-r--r--net/ipv6/ipv6_sockglue.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 41efca817db4..a733803a710c 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -471,10 +471,10 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
if (sk->sk_protocol == IPPROTO_TCP) {
struct inet_connection_sock *icsk = inet_csk(sk);
- local_bh_disable();
+
sock_prot_inuse_add(net, sk->sk_prot, -1);
sock_prot_inuse_add(net, &tcp_prot, 1);
- local_bh_enable();
+
sk->sk_prot = &tcp_prot;
icsk->icsk_af_ops = &ipv4_specific;
sk->sk_socket->ops = &inet_stream_ops;
@@ -485,10 +485,10 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
if (sk->sk_protocol == IPPROTO_UDPLITE)
prot = &udplite_prot;
- local_bh_disable();
+
sock_prot_inuse_add(net, sk->sk_prot, -1);
sock_prot_inuse_add(net, prot, 1);
- local_bh_enable();
+
sk->sk_prot = prot;
sk->sk_socket->ops = &inet_dgram_ops;
sk->sk_family = PF_INET;
@@ -599,7 +599,14 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
/* RFC 3542, 6.5: default traffic class of 0x0 */
if (val == -1)
val = 0;
- np->tclass = val;
+ if (sk->sk_type == SOCK_STREAM) {
+ val &= ~INET_ECN_MASK;
+ val |= np->tclass & INET_ECN_MASK;
+ }
+ if (np->tclass != val) {
+ np->tclass = val;
+ sk_dst_reset(sk);
+ }
retv = 0;
break;