xfrm: remove flow cache

After rcu conversions performance degradation in forward tests isn't that
noticeable anymore.

See next patch for some numbers.

A followup patcg could then also remove genid from the policies
as we do not cache bundles anymore.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 6 deletions

diff --git a/net/key/af_key.c b/net/key/af_key.c
index ca9d3ae665e7..10d7133e4fe9 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2398,8 +2398,6 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, const struct sa
 
 out:
         xfrm_pol_put(xp);
-        if (err == 0)
-                xfrm_garbage_collect(net);
         return err;
 }
 
@@ -2650,8 +2648,6 @@ static int pfkey_spdget(struct sock *sk, struct sk_buff *skb, const struct sadb_
 
 out:
         xfrm_pol_put(xp);
-        if (delete && err == 0)
-                xfrm_garbage_collect(net);
         return err;
 }
 
@@ -2751,8 +2747,6 @@ static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, const struct sad
         int err, err2;
 
         err = xfrm_policy_flush(net, XFRM_POLICY_TYPE_MAIN, true);
-        if (!err)
-                xfrm_garbage_collect(net);
         err2 = unicast_flush_resp(sk, hdr);
         if (err || err2) {
                 if (err == -ESRCH) /* empty table - old silent behavior */