From: Pablo Neira Ayuso
> Sent: 06 July 2016 15:24
> From: Florian Westphal <fw@xxxxxxxxx>
>
> increases struct size by 32 bytes (288 -> 320), but it is the right thing,
> else any attempt to (re-)arrange nf_conn members by cacheline won't work.
...
> nf_conntrack_cachep = kmem_cache_create("nf_conntrack",
> sizeof(struct nf_conn), 0,
> - SLAB_DESTROY_BY_RCU, NULL);
> + SLAB_DESTROY_BY_RCU | SLAB_HWCACHE_ALIGN, NULL);
What happens on systems with cache lines that are longer than 64 bytes?
(I'm pretty sure some ppc systems have long cache lines.)
David
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