From patchwork Wed Mar 25 13:07:46 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Patrick McHardy X-Patchwork-Id: 454388 X-Patchwork-Delegate: pablo@netfilter.org Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 2110B1400DD for ; Thu, 26 Mar 2015 00:07:59 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752559AbbCYNH5 (ORCPT ); Wed, 25 Mar 2015 09:07:57 -0400 Received: from stinky.trash.net ([213.144.137.162]:48261 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752478AbbCYNHz (ORCPT ); Wed, 25 Mar 2015 09:07:55 -0400 Received: from acer.localdomain.localdomain (localhost [127.0.0.1]) by stinky.trash.net (Postfix) with ESMTP id E04C19D2E0; Wed, 25 Mar 2015 14:07:53 +0100 (MET) From: Patrick McHardy To: pablo@netfilter.org Cc: netfilter-devel@vger.kernel.org Subject: [PATCH 2/6] netfilter: nft_hash: restore struct nft_hash Date: Wed, 25 Mar 2015 13:07:46 +0000 Message-Id: <1427288870-26336-3-git-send-email-kaber@trash.net> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1427288870-26336-1-git-send-email-kaber@trash.net> References: <1427288870-26336-1-git-send-email-kaber@trash.net> Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Following patches will add new private members, restore struct nft_hash as preparation. Signed-off-by: Patrick McHardy --- net/netfilter/nft_hash.c | 37 +++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 16 deletions(-) diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c index f9ce219..a517f84 100644 --- a/net/netfilter/nft_hash.c +++ b/net/netfilter/nft_hash.c @@ -23,6 +23,10 @@ /* We target a hash table size of 4, element hint is 75% of final size */ #define NFT_HASH_ELEMENT_HINT 3 +struct nft_hash { + struct rhashtable ht; +}; + struct nft_hash_elem { struct rhash_head node; struct nft_data key; @@ -35,10 +39,10 @@ static bool nft_hash_lookup(const struct nft_set *set, const struct nft_data *key, struct nft_data *data) { - struct rhashtable *priv = nft_set_priv(set); + struct nft_hash *priv = nft_set_priv(set); const struct nft_hash_elem *he; - he = rhashtable_lookup_fast(priv, key, nft_hash_params); + he = rhashtable_lookup_fast(&priv->ht, key, nft_hash_params); if (he && set->flags & NFT_SET_MAP) nft_data_copy(data, he->data); @@ -48,7 +52,7 @@ static bool nft_hash_lookup(const struct nft_set *set, static int nft_hash_insert(const struct nft_set *set, const struct nft_set_elem *elem) { - struct rhashtable *priv = nft_set_priv(set); + struct nft_hash *priv = nft_set_priv(set); struct nft_hash_elem *he; unsigned int size; int err; @@ -68,7 +72,7 @@ static int nft_hash_insert(const struct nft_set *set, if (set->flags & NFT_SET_MAP) nft_data_copy(he->data, &elem->data); - err = rhashtable_insert_fast(priv, &he->node, nft_hash_params); + err = rhashtable_insert_fast(&priv->ht, &he->node, nft_hash_params); if (err) kfree(he); @@ -87,19 +91,19 @@ static void nft_hash_elem_destroy(const struct nft_set *set, static void nft_hash_remove(const struct nft_set *set, const struct nft_set_elem *elem) { - struct rhashtable *priv = nft_set_priv(set); + struct nft_hash *priv = nft_set_priv(set); - rhashtable_remove_fast(priv, elem->cookie, nft_hash_params); + rhashtable_remove_fast(&priv->ht, elem->cookie, nft_hash_params); synchronize_rcu(); kfree(elem->cookie); } static int nft_hash_get(const struct nft_set *set, struct nft_set_elem *elem) { - struct rhashtable *priv = nft_set_priv(set); + struct nft_hash *priv = nft_set_priv(set); struct nft_hash_elem *he; - he = rhashtable_lookup_fast(priv, &elem->key, nft_hash_params); + he = rhashtable_lookup_fast(&priv->ht, &elem->key, nft_hash_params); if (!he) return -ENOENT; @@ -114,13 +118,13 @@ static int nft_hash_get(const struct nft_set *set, struct nft_set_elem *elem) static void nft_hash_walk(const struct nft_ctx *ctx, const struct nft_set *set, struct nft_set_iter *iter) { - struct rhashtable *priv = nft_set_priv(set); + struct nft_hash *priv = nft_set_priv(set); const struct nft_hash_elem *he; struct rhashtable_iter hti; struct nft_set_elem elem; int err; - err = rhashtable_walk_init(priv, &hti); + err = rhashtable_walk_init(&priv->ht, &hti); iter->err = err; if (err) return; @@ -165,7 +169,7 @@ out: static unsigned int nft_hash_privsize(const struct nlattr * const nla[]) { - return sizeof(struct rhashtable); + return sizeof(struct nft_hash); } static const struct rhashtable_params nft_hash_params = { @@ -179,13 +183,13 @@ static int nft_hash_init(const struct nft_set *set, const struct nft_set_desc *desc, const struct nlattr * const tb[]) { - struct rhashtable *priv = nft_set_priv(set); + struct nft_hash *priv = nft_set_priv(set); struct rhashtable_params params = nft_hash_params; params.nelem_hint = desc->size ?: NFT_HASH_ELEMENT_HINT; params.key_len = set->klen; - return rhashtable_init(priv, ¶ms); + return rhashtable_init(&priv->ht, ¶ms); } static void nft_free_element(void *ptr, void *arg) @@ -195,8 +199,9 @@ static void nft_free_element(void *ptr, void *arg) static void nft_hash_destroy(const struct nft_set *set) { - rhashtable_free_and_destroy(nft_set_priv(set), nft_free_element, - (void *)set); + struct nft_hash *priv = nft_set_priv(set); + + rhashtable_free_and_destroy(&priv->ht, nft_free_element, (void *)set); } static bool nft_hash_estimate(const struct nft_set_desc *desc, u32 features, @@ -209,7 +214,7 @@ static bool nft_hash_estimate(const struct nft_set_desc *desc, u32 features, esize += FIELD_SIZEOF(struct nft_hash_elem, data[0]); if (desc->size) { - est->size = sizeof(struct rhashtable) + + est->size = sizeof(struct nft_hash) + roundup_pow_of_two(desc->size * 4 / 3) * sizeof(struct nft_hash_elem *) + desc->size * esize;