diff options
| author | Patrick McHardy <kaber@trash.net> | 2007-02-12 11:13:14 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-02-12 11:13:14 -0800 |
| commit | abbaccda4c364815b8b1a82c45a94f60760e13e1 (patch) | |
| tree | 58e28cc25db59456092fc760b7a29e6d223610c5 /net/ipv4/ip_input.c | |
| parent | 923f4902fefdf4e89b0fb32c4e069d4f57d704f5 (diff) | |
[NETFILTER]: ip_conntrack: fix invalid conntrack statistics RCU assumption
CONNTRACK_STAT_INC assumes rcu_read_lock in nf_hook_slow disables
preemption as well, making it legal to use __get_cpu_var without
disabling preemption manually. The assumption is not correct anymore
with preemptable RCU, additionally we need to protect against softirqs
when not holding ip_conntrack_lock.
Add CONNTRACK_STAT_INC_ATOMIC macro, which disables local softirqs,
and use where necessary.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_input.c')
0 files changed, 0 insertions, 0 deletions