netfilter: conntrack: align nf_conn on cacheline boundary
authorFlorian Westphal <fw@strlen.de>
Fri, 10 Jun 2016 20:25:22 +0000 (22:25 +0200)
committerPablo Neira Ayuso <pablo@netfilter.org>
Thu, 23 Jun 2016 11:31:54 +0000 (13:31 +0200)
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.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nf_conntrack_core.c

index db2312eeb2a47c44db0f0ac5a529a10a0a8f8d2f..2903bb43547c65eb873973455923eb586922c9fc 100644 (file)
@@ -1731,7 +1731,7 @@ int nf_conntrack_init_start(void)
 
        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);
        if (!nf_conntrack_cachep)
                goto err_cachep;