From 2c8897953f3b2ff5498f3f275708a742bfcdbc24 Mon Sep 17 00:00:00 2001 From: Paul Blakey Date: Wed, 6 May 2020 14:24:39 +0300 Subject: netfilter: flowtable: Add pending bit for offload work Gc step can queue offloaded flow del work or stats work. Those work items can race each other and a flow could be freed before the stats work is executed and querying it. To avoid that, add a pending bit that if a work exists for a flow don't queue another work for it. This will also avoid adding multiple stats works in case stats work didn't complete but gc step started again. Signed-off-by: Paul Blakey Reviewed-by: Roi Dayan Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_flow_table.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h index 6bf69652f57d..c54a7f707e50 100644 --- a/include/net/netfilter/nf_flow_table.h +++ b/include/net/netfilter/nf_flow_table.h @@ -127,6 +127,7 @@ enum nf_flow_flags { NF_FLOW_HW_DYING, NF_FLOW_HW_DEAD, NF_FLOW_HW_REFRESH, + NF_FLOW_HW_PENDING, }; enum flow_offload_type { -- cgit 1.4.1