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authorFlorian Westphal <fw@strlen.de>2016-11-22 14:44:17 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2016-12-06 21:42:17 +0100
commit4d31eef5176df06f218201bc9c0ce40babb41660 (patch)
treeeaf55a61ced414ba986204d40fa3e8edf8e306c8 /net/netfilter/x_tables.c
parent679972f3bef8df7aa04cc99b46f71392ebf0b5f8 (diff)
netfilter: x_tables: pass xt_counters struct instead of packet counter
On SMP we overload the packet counter (unsigned long) to contain percpu offset. Hide this from callers and pass xt_counters address instead. Preparation patch to allocate the percpu counters in page-sized batch chunks. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/x_tables.c')
-rw-r--r--net/netfilter/x_tables.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index ad818e52859b..0580029eb0ee 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1615,6 +1615,15 @@ void xt_proto_fini(struct net *net, u_int8_t af)
}
EXPORT_SYMBOL_GPL(xt_proto_fini);
+void xt_percpu_counter_free(struct xt_counters *counters)
+{
+ unsigned long pcnt = counters->pcnt;
+
+ if (nr_cpu_ids > 1)
+ free_percpu((void __percpu *)pcnt);
+}
+EXPORT_SYMBOL_GPL(xt_percpu_counter_free);
+
static int __net_init xt_net_init(struct net *net)
{
int i;