From: Phil Sutter <phil@nwl.cc>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org
Subject: [iptables PATCH v3 09/11] nft: Reduce cache overhead of nft_chain_builtin_init()
Date: Tue, 8 Oct 2019 18:14:45 +0200 [thread overview]
Message-ID: <20191008161447.6595-10-phil@nwl.cc> (raw)
In-Reply-To: <20191008161447.6595-1-phil@nwl.cc>
There is no need for a full chain cache, fetch only the few builtin
chains that might need to be created.
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
iptables/nft.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/iptables/nft.c b/iptables/nft.c
index 775582aab7955..7e019d54ee475 100644
--- a/iptables/nft.c
+++ b/iptables/nft.c
@@ -709,15 +709,16 @@ nft_chain_builtin_find(const struct builtin_table *t, const char *chain)
static void nft_chain_builtin_init(struct nft_handle *h,
const struct builtin_table *table)
{
- struct nftnl_chain_list *list = nft_chain_list_get(h, table->name, NULL);
+ struct nftnl_chain_list *list;
struct nftnl_chain *c;
int i;
- if (!list)
- return;
-
/* Initialize built-in chains if they don't exist yet */
for (i=0; i < NF_INET_NUMHOOKS && table->chains[i].name != NULL; i++) {
+ list = nft_chain_list_get(h, table->name,
+ table->chains[i].name);
+ if (!list)
+ continue;
c = nftnl_chain_list_lookup_byname(list, table->chains[i].name);
if (c != NULL)
--
2.23.0
next prev parent reply other threads:[~2019-10-08 16:15 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-08 16:14 [iptables PATCH v3 00/11] Improve iptables-nft performance with large rulesets Phil Sutter
2019-10-08 16:14 ` [iptables PATCH v3 01/11] nft: Pass nft_handle to flush_cache() Phil Sutter
2019-10-09 9:30 ` Pablo Neira Ayuso
2019-10-08 16:14 ` [iptables PATCH v3 02/11] nft: Avoid nested cache fetching Phil Sutter
2019-10-09 9:30 ` Pablo Neira Ayuso
2019-10-08 16:14 ` [iptables PATCH v3 03/11] nft: Extract cache routines into nft-cache.c Phil Sutter
2019-10-09 9:32 ` Pablo Neira Ayuso
2019-10-08 16:14 ` [iptables PATCH v3 04/11] nft-cache: Introduce cache levels Phil Sutter
2019-10-09 9:37 ` Pablo Neira Ayuso
2019-10-09 10:29 ` Pablo Neira Ayuso
2019-10-10 22:09 ` Phil Sutter
2019-10-11 9:28 ` Pablo Neira Ayuso
2019-10-11 11:24 ` Phil Sutter
2019-10-14 10:00 ` Pablo Neira Ayuso
2019-10-11 10:20 ` Pablo Neira Ayuso
2019-10-08 16:14 ` [iptables PATCH v3 05/11] nft-cache: Fetch only chains in nft_chain_list_get() Phil Sutter
2019-10-08 16:14 ` [iptables PATCH v3 06/11] nft-cache: Cover for multiple fetcher invocation Phil Sutter
2019-10-08 16:14 ` [iptables PATCH v3 07/11] nft-cache: Support partial cache per table Phil Sutter
2019-10-08 16:14 ` [iptables PATCH v3 08/11] nft-cache: Support partial rule cache per chain Phil Sutter
2019-10-08 16:14 ` Phil Sutter [this message]
2019-10-08 16:14 ` [iptables PATCH v3 10/11] nft: Support nft_is_table_compatible() " Phil Sutter
2019-10-08 16:14 ` [iptables PATCH v3 11/11] nft: Optimize flushing all chains of a table Phil Sutter
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