diff options
Diffstat (limited to 'net/netfilter/nft_set_hash.c')
| -rw-r--r-- | net/netfilter/nft_set_hash.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c index 564fa7929ed5..3794cb2fc788 100644 --- a/net/netfilter/nft_set_hash.c +++ b/net/netfilter/nft_set_hash.c @@ -126,7 +126,8 @@ err1: } static int nft_hash_insert(const struct net *net, const struct nft_set *set, - const struct nft_set_elem *elem) + const struct nft_set_elem *elem, + struct nft_set_ext **ext) { struct nft_hash *priv = nft_set_priv(set); struct nft_hash_elem *he = elem->priv; @@ -135,9 +136,17 @@ static int nft_hash_insert(const struct net *net, const struct nft_set *set, .set = set, .key = elem->key.val.data, }; - - return rhashtable_lookup_insert_key(&priv->ht, &arg, &he->node, - nft_hash_params); + struct nft_hash_elem *prev; + + prev = rhashtable_lookup_get_insert_key(&priv->ht, &arg, &he->node, + nft_hash_params); + if (IS_ERR(prev)) + return PTR_ERR(prev); + if (prev) { + *ext = &prev->ext; + return -EEXIST; + } + return 0; } static void nft_hash_activate(const struct net *net, const struct nft_set *set, |