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netfilter: flowtable: Make sure GC works periodically in idle system

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[ Upstream commit 740b486a8d ]

Currently flowtable's GC work is initialized as deferrable, which
means GC cannot work on time when system is idle. So the hardware
offloaded flow may be deleted for timeout, since its used time is
not timely updated.

Resolve it by initializing the GC work as delayed work instead of
deferrable.

Fixes: c29f74e0df ("netfilter: nf_flow_table: hardware offload support")
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yinjun Zhang
2021-03-17 13:42:24 +01:00
committed by Greg Kroah-Hartman
parent 186d8dc40a
commit 4280132339
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nf_flow_table_core.c
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@@ -506,7 +506,7 @@ int nf_flow_table_init(struct nf_flowtable *flowtable)
{
int err;
INIT_DEFERRABLE_WORK(&flowtable->gc_work, nf_flow_offload_work_gc);
INIT_DELAYED_WORK(&flowtable->gc_work, nf_flow_offload_work_gc);
flow_block_init(&flowtable->flow_block);
init_rwsem(&flowtable->flow_block_lock);