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| author | Paul Mackerras <paulus@samba.org> | 2006-08-31 15:45:48 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-08-31 15:45:48 +1000 |
| commit | aa43f77939c97bf9d3580c6a5e71a5a40290e451 (patch) | |
| tree | 095c0b8b3da4b6554a3f8ef4b39240a5d9216d4d /net/ipv6/icmp.c | |
| parent | 2818c5dec5e28d65d52afbb7695bbbafe6377ee5 (diff) | |
| parent | 4c15343167b5febe7bb0ba96aad5bef42ae94d3b (diff) | |
| download | linux-3.10-aa43f77939c97bf9d3580c6a5e71a5a40290e451.tar.gz linux-3.10-aa43f77939c97bf9d3580c6a5e71a5a40290e451.tar.bz2 linux-3.10-aa43f77939c97bf9d3580c6a5e71a5a40290e451.zip | |
Merge branch 'merge'
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. |