From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 05/17] netfilter: conntrack: tell compiler to not inline nf_ct_resolve_clash
Date: Mon, 9 Dec 2019 20:26:26 +0100 [thread overview]
Message-ID: <20191209192638.71184-6-pablo@netfilter.org> (raw)
In-Reply-To: <20191209192638.71184-1-pablo@netfilter.org>
From: Florian Westphal <fw@strlen.de>
At this time compiler inlines it, but this code will not be executed
under normal conditions.
Also, no inlining allows to use "nf_ct_resolve_clash%return" perf probe.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/nf_conntrack_core.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 0af1898af2b8..f475fec84536 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -895,9 +895,10 @@ static void nf_ct_acct_merge(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
}
/* Resolve race on insertion if this protocol allows this. */
-static int nf_ct_resolve_clash(struct net *net, struct sk_buff *skb,
- enum ip_conntrack_info ctinfo,
- struct nf_conntrack_tuple_hash *h)
+static __cold noinline int
+nf_ct_resolve_clash(struct net *net, struct sk_buff *skb,
+ enum ip_conntrack_info ctinfo,
+ struct nf_conntrack_tuple_hash *h)
{
/* This is the conntrack entry already in hashes that won race. */
struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(h);
--
2.11.0
next prev parent reply other threads:[~2019-12-09 19:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-09 19:26 [PATCH 00/17] Netfilter fixes for net Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 01/17] netfilter: ctnetlink: netns exit must wait for callbacks Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 02/17] netfilter: nf_flow_table_offload: Fix block setup as TC_SETUP_FT cmd Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 03/17] netfilter: nf_flow_table_offload: Fix block_cb tc_setup_type as TC_SETUP_CLSFLOWER Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 04/17] netfilter: nf_flow_table_offload: Don't use offset uninitialized in flow_offload_port_{d,s}nat Pablo Neira Ayuso
2019-12-09 19:26 ` Pablo Neira Ayuso [this message]
2019-12-09 19:26 ` [PATCH 06/17] netfilter: nf_flow_table_offload: add IPv6 match description Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 07/17] netfilter: nf_tables_offload: Check for the NETDEV_UNREGISTER event Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 08/17] selftests: netfilter: use randomized netns names Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 09/17] netfilter: nf_queue: enqueue skbs with NULL dst Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 10/17] netfilter: uapi: Avoid undefined left-shift in xt_sctp.h Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 11/17] netfilter: nft_set_rbtree: bogus lookup/get on consecutive elements in named sets Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 12/17] netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 13/17] netfilter: nf_tables: validate NFT_DATA_VALUE after nft_data_init() Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 14/17] netfilter: nf_tables: skip module reference count bump on object updates Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 15/17] netfilter: nf_tables_offload: return EOPNOTSUPP if rule specifies no actions Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 16/17] netfilter: bridge: make sure to pull arp header in br_nf_forward_arp() Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 17/17] netfilter: nf_flow_table_offload: Correct memcpy size for flow_overload_mangle() Pablo Neira Ayuso
2019-12-09 22:03 ` [PATCH 00/17] Netfilter fixes for net David Miller
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