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| author | Jeff Garzik <jeff@garzik.org> | 2006-08-19 17:27:27 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-08-19 17:27:27 -0400 |
| commit | 499792ec6dc737467e5486527cef95ed7d74fba9 (patch) | |
| tree | b88c4ef9d4491c17f71d26d33e73f05f7c7ea6a0 /net/ipv6/icmp.c | |
| parent | 421b20b9c44b3fcdc07d6af875dad5ae86fad014 (diff) | |
| parent | d14b50cc60ca465290fcdb3b88e7d5fb684361ed (diff) | |
Merge branch 'upstream-fixes' into upstream
Diffstat (limited to 'net/ipv6/icmp.c')
| -rw-r--r-- | net/ipv6/icmp.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 1044b6fce0d..3d6e9a35115 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -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. |