From: Pablo Neira Ayuso
> Sent: 06 July 2016 15:24
> From: Florian Westphal <[email protected]>
>
> 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
