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From: Pablo Neira Ayuso <pablo@netfilter•org>
To: netfilter-devel@vger•kernel.org
Cc: davem@davemloft•net, netdev@vger•kernel.org
Subject: [PATCH 29/31] netfilter: nf_tables: use rhashtable_lookup() instead of rhashtable_lookup_fast()
Date: Tue,  9 Oct 2018 01:01:23 +0200	[thread overview]
Message-ID: <20181008230125.2330-30-pablo@netfilter.org> (raw)
In-Reply-To: <20181008230125.2330-1-pablo@netfilter.org>

From: Taehee Yoo <ap420073@gmail•com>

Internally, rhashtable_lookup_fast() calls rcu_read_lock() then,
calls rhashtable_lookup(). so that in places where are guaranteed
by rcu read lock, rhashtable_lookup() is enough.

Signed-off-by: Taehee Yoo <ap420073@gmail•com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter•org>
---
 net/netfilter/nf_flow_table_core.c | 4 ++--
 net/netfilter/nft_set_hash.c       | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/netfilter/nf_flow_table_core.c b/net/netfilter/nf_flow_table_core.c
index da3044482317..185c633b6872 100644
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -233,8 +233,8 @@ flow_offload_lookup(struct nf_flowtable *flow_table,
 	struct flow_offload *flow;
 	int dir;
 
-	tuplehash = rhashtable_lookup_fast(&flow_table->rhashtable, tuple,
-					   nf_flow_offload_rhash_params);
+	tuplehash = rhashtable_lookup(&flow_table->rhashtable, tuple,
+				      nf_flow_offload_rhash_params);
 	if (!tuplehash)
 		return NULL;
 
diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c
index 4f9c01715856..339a9dd1c832 100644
--- a/net/netfilter/nft_set_hash.c
+++ b/net/netfilter/nft_set_hash.c
@@ -88,7 +88,7 @@ static bool nft_rhash_lookup(const struct net *net, const struct nft_set *set,
 		.key	 = key,
 	};
 
-	he = rhashtable_lookup_fast(&priv->ht, &arg, nft_rhash_params);
+	he = rhashtable_lookup(&priv->ht, &arg, nft_rhash_params);
 	if (he != NULL)
 		*ext = &he->ext;
 
@@ -106,7 +106,7 @@ static void *nft_rhash_get(const struct net *net, const struct nft_set *set,
 		.key	 = elem->key.val.data,
 	};
 
-	he = rhashtable_lookup_fast(&priv->ht, &arg, nft_rhash_params);
+	he = rhashtable_lookup(&priv->ht, &arg, nft_rhash_params);
 	if (he != NULL)
 		return he;
 
@@ -129,7 +129,7 @@ static bool nft_rhash_update(struct nft_set *set, const u32 *key,
 		.key	 = key,
 	};
 
-	he = rhashtable_lookup_fast(&priv->ht, &arg, nft_rhash_params);
+	he = rhashtable_lookup(&priv->ht, &arg, nft_rhash_params);
 	if (he != NULL)
 		goto out;
 
@@ -217,7 +217,7 @@ static void *nft_rhash_deactivate(const struct net *net,
 	};
 
 	rcu_read_lock();
-	he = rhashtable_lookup_fast(&priv->ht, &arg, nft_rhash_params);
+	he = rhashtable_lookup(&priv->ht, &arg, nft_rhash_params);
 	if (he != NULL &&
 	    !nft_rhash_flush(net, set, he))
 		he = NULL;
-- 
2.11.0

  parent reply	other threads:[~2018-10-09  6:15 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-08 23:00 [PATCH 00/31] Netfilter updates for net-next Pablo Neira Ayuso
2018-10-08 23:00 ` [PATCH 01/31] netfilter: nf_tables: rt: allow checking if dst has xfrm attached Pablo Neira Ayuso
2018-10-08 23:00 ` [PATCH 02/31] netfilter: nf_tables: split set destruction in deactivate and destroy phase Pablo Neira Ayuso
2018-10-08 23:00 ` [PATCH 03/31] netfilter: nf_tables: warn when expr implements only one of activate/deactivate Pablo Neira Ayuso
2018-10-08 23:00 ` [PATCH 04/31] netfilter: nf_tables: asynchronous release Pablo Neira Ayuso
2018-10-08 23:00 ` [PATCH 05/31] netfilter: remove obsolete need_conntrack stub Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 06/31] netfilter: nf_tables: add xfrm expression Pablo Neira Ayuso
2018-10-10 11:39   ` Eyal Birger
2018-10-10 12:53     ` Florian Westphal
2018-10-08 23:01 ` [PATCH 07/31] netfilter: ctnetlink: Support L3 protocol-filter on flush Pablo Neira Ayuso
2019-04-25 10:07   ` Nicolas Dichtel
2019-04-25 15:41     ` Nicolas Dichtel
2019-04-26 19:25       ` Pablo Neira Ayuso
2019-04-29 14:53         ` Nicolas Dichtel
2019-04-29 15:23           ` Pablo Neira Ayuso
2019-04-29 15:39             ` Nicolas Dichtel
2019-05-01  8:47     ` Kristian Evensen
2019-05-02  7:28       ` Nicolas Dichtel
2019-05-02  7:46         ` Florian Westphal
2019-05-02  8:09           ` Kristian Evensen
2019-05-02  8:27           ` Nicolas Dichtel
2019-05-02 11:31           ` Pablo Neira Ayuso
2019-05-02 12:56             ` Nicolas Dichtel
2019-05-02 15:06               ` Pablo Neira Ayuso
2019-05-03  7:02                 ` Nicolas Dichtel
2019-05-03  7:14                   ` Kristian Evensen
2018-10-08 23:01 ` [PATCH 08/31] netfilter: xt_cgroup: shrink size of v2 path Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 09/31] netfilter: nf_tables: avoid BUG_ON usage Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 10/31] netfilter: xtables: avoid BUG_ON Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 11/31] netfilter: nf_nat_ipv4: remove obsolete EXPORT_SYMBOL Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 12/31] netfilter: cttimeout: remove superfluous check on layer 4 netlink functions Pablo Neira Ayuso
2018-11-01 14:57   ` Eric Dumazet
2018-11-01 23:26     ` Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 13/31] netfilter: nat: remove unnecessary rcu_read_lock in nf_nat_redirect_ipv{4/6} Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 14/31] netfilter: conntrack: pass nf_hook_state to packet and error handlers Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 15/31] netfilter: conntrack: remove the l4proto->new() function Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 16/31] netfilter: conntrack: deconstify packet callback skb pointer Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 17/31] netfilter: conntrack: avoid using ->error callback if possible Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 18/31] netfilter: conntrack: remove error callback and handle icmp from core Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 19/31] netfilter: conntrack: remove unused proto arg from netns init functions Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 20/31] netfilter: conntrack: remove l3->l4 mapping information Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 21/31] netfilter: conntrack: clamp l4proto array size at largers supported protocol Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 22/31] netfilter: nat: remove duplicate skb_is_nonlinear() in __nf_nat_mangle_tcp_packet() Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 23/31] netfilter: nf_tables: use rhashtable_walk_enter instead of rhashtable_walk_init Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 24/31] netfilter: ctnetlink: must check mark attributes vs NULL Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 25/31] netfilter: masquerade: don't flush all conntracks if only one address deleted on device Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 26/31] netfilter: nf_tables: add SECMARK support Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 27/31] netfilter: nf_tables: add requirements for connsecmark support Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 28/31] netfilter: nf_flow_table: remove unnecessary nat flag check code Pablo Neira Ayuso
2018-10-08 23:01 ` Pablo Neira Ayuso [this message]
2018-10-08 23:01 ` [PATCH 30/31] netfilter: xt_quota: fix the behavior of xt_quota module Pablo Neira Ayuso
2018-10-08 23:01 ` [PATCH 31/31] netfilter: xt_quota: Don't use aligned attribute in sizeof Pablo Neira Ayuso
2018-10-09  4:29 ` [PATCH 00/31] Netfilter updates for net-next David Miller

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