ipvs: avoid lookup for fwmark 0

 	Restore the previous behaviour to lookup for fwmark
service only when fwmark is non-null. This saves only CPU.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

1 files changed, 5 insertions, 3 deletions

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index c73b0c831a2d..f0369d665088 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -411,9 +411,11 @@ ip_vs_service_get(struct net *net, int af, __u32 fwmark, __u16 protocol,
         /*
          *      Check the table hashed by fwmark first
          */
-        svc = __ip_vs_svc_fwm_find(net, af, fwmark);
-        if (fwmark && svc)
-                goto out;
+        if (fwmark) {
+                svc = __ip_vs_svc_fwm_find(net, af, fwmark);
+                if (svc)
+                        goto out;
+        }
 
         /*
          *      Check the table hashed by <protocol,addr,port>