OpenWrt
/branches/18.06.1/target/linux/generic/pending-4.14/616-net_optimize_xfrm_calls.patch |
@@ -0,0 +1,20 @@ |
From: Felix Fietkau <nbd@nbd.name> |
Subject: kernel: add a small xfrm related performance optimization |
|
Signed-off-by: Felix Fietkau <nbd@nbd.name> |
--- |
net/netfilter/nf_nat_core.c | 3 +++ |
1 file changed, 3 insertions(+) |
|
--- a/net/netfilter/nf_nat_core.c |
+++ b/net/netfilter/nf_nat_core.c |
@@ -90,6 +90,9 @@ int nf_xfrm_me_harder(struct net *net, s |
struct dst_entry *dst; |
int err; |
|
+ if (skb->dev && !dev_net(skb->dev)->xfrm.policy_count[XFRM_POLICY_OUT]) |
+ return 0; |
+ |
err = xfrm_decode_session(skb, &fl, family); |
if (err < 0) |
return err; |