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

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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>
This commit is contained in:
Yinjun Zhang 2021-03-17 13:42:24 +01:00 committed by Pablo Neira Ayuso
parent 7b35582cd0
commit 740b486a8d
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);