tree ed68f6cbcc9a512106217694b16a846147cdf54a
parent 7b5edbc4cfe2297b0915adea5aa1eafcafadbf06
author Eric Dumazet <eric.dumazet@gmail.com> 1287612218 +0000
committer David S. Miller <davem@davemloft.net> 1287655781 -0700

fib: introduce fib_alias_accessed() helper

Perf tools session at NFWS 2010 pointed out a false sharing on struct
fib_alias that can be avoided pretty easily, if we set FA_S_ACCESSED bit
only if needed (ie : not already set)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>