diff options
Diffstat (limited to 'net/ipv6/icmp.c')
| -rw-r--r-- | net/ipv6/icmp.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 1044b6fce0d..356a8a7ef22 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -401,7 +401,7 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info, if (hlimit < 0) hlimit = ipv6_get_hoplimit(dst->dev); - tclass = np->cork.tclass; + tclass = np->tclass; if (tclass < 0) tclass = 0; @@ -497,7 +497,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb) if (hlimit < 0) hlimit = ipv6_get_hoplimit(dst->dev); - tclass = np->cork.tclass; + tclass = np->tclass; if (tclass < 0) tclass = 0; @@ -712,6 +712,11 @@ discard_it: return 0; } +/* + * Special lock-class for __icmpv6_socket: + */ +static struct lock_class_key icmpv6_socket_sk_dst_lock_key; + int __init icmpv6_init(struct net_proto_family *ops) { struct sock *sk; @@ -730,6 +735,14 @@ int __init icmpv6_init(struct net_proto_family *ops) sk = per_cpu(__icmpv6_socket, i)->sk; sk->sk_allocation = GFP_ATOMIC; + /* + * Split off their lock-class, because sk->sk_dst_lock + * gets used from softirqs, which is safe for + * __icmpv6_socket (because those never get directly used + * via userspace syscalls), but unsafe for normal sockets. + */ + lockdep_set_class(&sk->sk_dst_lock, + &icmpv6_socket_sk_dst_lock_key); /* Enough space for 2 64K ICMP packets, including * sk_buff struct overhead. |