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authorPatrick McHardy <kaber@trash.net>2007-02-12 11:13:43 -0800
committerDavid S. Miller <davem@davemloft.net>2007-02-12 11:13:43 -0800
commitc0e912d7ed8999f87fa7f084928aac1266e251f3 (patch)
treeec48a83001871b4e0db78ee9eab520a1fbb02e14 /mm
parent[NETFILTER]: ip_conntrack: fix invalid conntrack statistics RCU assumption (diff)
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[NETFILTER]: nf_conntrack: fix invalid conntrack statistics RCU assumption
NF_CT_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 nf_conntrack_lock. Add NF_CT_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 'mm')
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