tree 633279786602d3677ea5c4959528aa00219afed2
parent 897dc80b951e996ba4d26c0038e81a505b92aec1
author Eric Dumazet <eric.dumazet@gmail.com> 1311827545 +0000
committer David S. Miller <davem@davemloft.net> 1312182720 -0700

ip6tnl: avoid touching dst refcount in ip6_tnl_xmit2()

Even using percpu stats, we still hit tunnel dst_entry refcount in
ip6_tnl_xmit2()

Since we are in RCU locked section, we can use skb_dst_set_noref() and
avoid these atomic operations, leaving dst shared on cpus.

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