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netfilter: nft_quota: introduce nft_overquota()

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This is patch renames the existing function to nft_overquota() and make
it return a boolean that tells us if we have exceeded our byte quota.
Just a cleanup.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2016-09-02 21:00:59 +02:00
parent db6d857b81
commit 22609b43b1
1 changed files with 4 additions and 4 deletions
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8
net/netfilter/nft_quota.c
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@ -21,10 +21,10 @@ struct nft_quota {
atomic64_t remain;
};
static inline long nft_quota(struct nft_quota *priv,
const struct nft_pktinfo *pkt)
static inline bool nft_overquota(struct nft_quota *priv,
const struct nft_pktinfo *pkt)
{
return atomic64_sub_return(pkt->skb->len, &priv->remain);
return atomic64_sub_return(pkt->skb->len, &priv->remain) < 0;
}
static void nft_quota_eval(const struct nft_expr *expr,
@ -33,7 +33,7 @@ static void nft_quota_eval(const struct nft_expr *expr,
{
struct nft_quota *priv = nft_expr_priv(expr);
if ((nft_quota(priv, pkt) < 0) ^ priv->invert)
if (nft_overquota(priv, pkt) ^ priv->invert)
regs->verdict.code = NFT_BREAK;
}