From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 13 Oct 2010 02:45:40 +0000 (+0000)
Subject: fib6: use FIB_LOOKUP_NOREF in fib6_rule_lookup()
X-Git-Tag: v2.6.37-rc1~147^2~136
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2c1c00040af3d187b7d602dd53b5adbbf3a4caa4;p=platform%2Fupstream%2Fkernel-adaptation-pc.git

fib6: use FIB_LOOKUP_NOREF in fib6_rule_lookup()

Avoid two atomic ops on found rule in fib6_rule_lookup()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index b1108ed..d829874 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -34,11 +34,10 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi *fl,
 {
 	struct fib_lookup_arg arg = {
 		.lookup_ptr = lookup,
+		.flags = FIB_LOOKUP_NOREF,
 	};
 
 	fib_rules_lookup(net->ipv6.fib6_rules_ops, fl, flags, &arg);
-	if (arg.rule)
-		fib_rule_put(arg.rule);
 
 	if (arg.result)
 		return arg.result;