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authorEric Dumazet <dada1@cosmosbay.com>2006-12-08 00:08:43 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-08 17:19:29 -0800
commitf0490980a152958d25ce9762bfb296d8fd4c5512 (patch)
treeb5f505b4bfbc770c1e15d7177fec4944e2df9c28 /include/linux/cramfs_fs_sb.h
parent47bbec0282cce900f16a8dd6397260e076400edb (diff)
downloadop-kernel-dev-f0490980a152958d25ce9762bfb296d8fd4c5512.zip
op-kernel-dev-f0490980a152958d25ce9762bfb296d8fd4c5512.tar.gz
[NET]: Force a cache line split in hh_cache in SMP.
hh_lock was converted from rwlock to seqlock by Stephen. To have a 100% benefit of this change, I suggest to place read mostly fields of hh_cache in a separate cache line, because hh_refcnt may be changed quite frequently on some busy machines. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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