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authorEric Dumazet <eric.dumazet@gmail.com>2010-10-13 08:22:03 +0000
committerDavid S. Miller <davem@davemloft.net>2010-10-16 11:13:23 -0700
commit10da66f7552b3c7966c2f4f1f72009fb0b5539ec (patch)
tree517c39912a0aea9d4da3c3915c78e832dfbba855 /net/ipv6/anycast.c
parent874ffa8f72444d6253d2669fed304875c128f86b (diff)
fib: avoid false sharing on fib_table_hash
While doing profile analysis, I found fib_hash_table was sometime in a cache line shared by a possibly often written kernel structure. (CONFIG_IP_ROUTE_MULTIPATH || !CONFIG_IPV6_MULTIPLE_TABLES) It's hard to detect because not easily reproductible. Make sure we allocate a full cache line to keep this shared in all cpus caches. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/anycast.c')
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