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authorEric Dumazet <dada1@cosmosbay.com>2009-03-25 17:24:34 +0100
committerPatrick McHardy <kaber@trash.net>2009-03-25 17:24:34 +0100
commit78f3648601fdc7a8166748bbd6d0555a88efa24a (patch)
tree6884aa56afe297f794b4bd926890a59eae6c259e /net/ipv4
parenta9a9adfe2f99ddadfb574a098392a007970a1577 (diff)
netfilter: nf_conntrack: use hlist_add_head_rcu() in nf_conntrack_set_hashsize()
Using hlist_add_head() in nf_conntrack_set_hashsize() is quite dangerous. Without any barrier, one CPU could see a loop while doing its lookup. Its true new table cannot be seen by another cpu, but previous table is still readable. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
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