commit 02e4eb75912a5c8babccc1acdc9cc913989be04e
author Eric Dumazet <eric.dumazet@gmail.com> Thu Apr 01 14:35:56 2010 +0200
committer Patrick McHardy <kaber@trash.net> Thu Apr 01 14:35:56 2010 +0200
tree 482d37284f058ae8439c47bc57416440caa04f61
parent 902a3dd5e6b19048604ec533203d7d38a39505a2

netfilter: xt_hashlimit: RCU conversion

xt_hashlimit uses a central lock per hash table and suffers from
contention on some workloads. (Multiqueue NIC or if RPS is enabled)

After RCU conversion, central lock is only used when a writer wants to
add or delete an entry.

For 'readers', updating an existing entry, they use an individual lock
per entry.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>