From: Roi Dayan <roid@mellanox.com>
Date: Mon, 3 Aug 2020 10:33:05 +0300
Subject: netfilter: flowtable: Set offload timeout when adding flow
Patch-mainline: v5.9-rc1
Git-commit: 4203b19c27967d9eff6928f6a733f81892ffc592
References: bsc#1176447
On heavily loaded systems the GC can take time to go over all existing
conns and reset their timeout. At that time other calls like from
nf_conntrack_in() can call of nf_ct_is_expired() and see the conn as
expired. To fix this when we set the offload bit we should also reset
the timeout instead of counting on GC to finish first iteration over
all conns before the initial timeout.
Fixes: 90964016e5d3 ("netfilter: nf_conntrack: add IPS_OFFLOAD status bit")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
net/netfilter/nf_flow_table_core.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -243,6 +243,8 @@ int flow_offload_add(struct nf_flowtable
return err;
}
+ nf_ct_offload_timeout(flow->ct);
+
if (nf_flowtable_hw_offload(flow_table)) {
__set_bit(NF_FLOW_HW, &flow->flags);
nf_flow_offload_add(flow_table, flow);