This patch comes in preparation to the percpu support, so struct nft_counter
only contains the byte and packet counter fields that can be reused.
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/netfilter/nft_counter.c | 32 +++++++++++++++++++-------------
1 file changed, 19 insertions(+), 13 deletions(-)
diff --git a/net/netfilter/nft_counter.c b/net/netfilter/nft_counter.c
index 1759123..ad78fda 100644
--- a/net/netfilter/nft_counter.c
+++ b/net/netfilter/nft_counter.c
@@ -18,34 +18,38 @@
#include <net/netfilter/nf_tables.h>
struct nft_counter {
- seqlock_t lock;
- u64 bytes;
- u64 packets;
+ u64 bytes;
+ u64 packets;
+};
+
+struct nft_counter_priv {
+ seqlock_t lock;
+ struct nft_counter counter;
};
static void nft_counter_eval(const struct nft_expr *expr,
struct nft_regs *regs,
const struct nft_pktinfo *pkt)
{
- struct nft_counter *priv = nft_expr_priv(expr);
+ struct nft_counter_priv *priv = nft_expr_priv(expr);
write_seqlock_bh(&priv->lock);
- priv->bytes += pkt->skb->len;
- priv->packets++;
+ priv->counter.bytes += pkt->skb->len;
+ priv->counter.packets++;
write_sequnlock_bh(&priv->lock);
}
static int nft_counter_dump(struct sk_buff *skb, const struct nft_expr *expr)
{
- struct nft_counter *priv = nft_expr_priv(expr);
+ struct nft_counter_priv *priv = nft_expr_priv(expr);
unsigned int seq;
u64 bytes;
u64 packets;
do {
seq = read_seqbegin(&priv->lock);
- bytes = priv->bytes;
- packets = priv->packets;
+ bytes = priv->counter.bytes;
+ packets = priv->counter.packets;
} while (read_seqretry(&priv->lock, seq));
if (nla_put_be64(skb, NFTA_COUNTER_BYTES, cpu_to_be64(bytes)))
@@ -67,12 +71,14 @@ static int nft_counter_init(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nlattr * const tb[])
{
- struct nft_counter *priv = nft_expr_priv(expr);
+ struct nft_counter_priv *priv = nft_expr_priv(expr);
if (tb[NFTA_COUNTER_PACKETS])
- priv->packets = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_PACKETS]));
+ priv->counter.packets =
+ be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_PACKETS]));
if (tb[NFTA_COUNTER_BYTES])
- priv->bytes = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_BYTES]));
+ priv->counter.bytes =
+ be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_BYTES]));
seqlock_init(&priv->lock);
return 0;
@@ -81,7 +87,7 @@ static int nft_counter_init(const struct nft_ctx *ctx,
static struct nft_expr_type nft_counter_type;
static const struct nft_expr_ops nft_counter_ops = {
.type = &nft_counter_type,
- .size = NFT_EXPR_SIZE(sizeof(struct nft_counter)),
+ .size = NFT_EXPR_SIZE(sizeof(struct nft_counter_priv)),
.eval = nft_counter_eval,
.init = nft_counter_init,
.dump = nft_counter_dump,
--
1.7.10.4
--
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