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authorDavid S. Miller <davem@davemloft.net>2012-07-26 11:14:38 +0000
committerDavid S. Miller <davem@davemloft.net>2012-07-26 15:50:39 -0700
commitc6cffba4ffa26a8ffacd0bb9f3144e34f20da7de (patch)
treeb67532a74343d42bcf8784b8e32d7cf6d69313db /net/ipv4/fib_semantics.c
parent4487e64de63b8e42efe5a5543871c42c5a5859d9 (diff)
downloadlinux-c6cffba4ffa26a8ffacd0bb9f3144e34f20da7de.tar.bz2
ipv4: Fix input route performance regression.
With the routing cache removal we lost the "noref" code paths on input, and this can kill some routing workloads. Reinstate the noref path when we hit a cached route in the FIB nexthops. With help from Eric Dumazet. Reported-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_semantics.c')
-rw-r--r--net/ipv4/fib_semantics.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index e55171f184f9..da0cc2e6b250 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -172,9 +172,9 @@ static void free_fib_info_rcu(struct rcu_head *head)
if (nexthop_nh->nh_exceptions)
free_nh_exceptions(nexthop_nh);
if (nexthop_nh->nh_rth_output)
- dst_release(&nexthop_nh->nh_rth_output->dst);
+ dst_free(&nexthop_nh->nh_rth_output->dst);
if (nexthop_nh->nh_rth_input)
- dst_release(&nexthop_nh->nh_rth_input->dst);
+ dst_free(&nexthop_nh->nh_rth_input->dst);
} endfor_nexthops(fi);
release_net(fi->fib_net);