ip6tnl: avoid touching dst refcount in ip6_tnl_xmit2()

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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>

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Eric Dumazet 2011-07-28 04:32:25 +00:00 • committed by David S. Miller

parent 897dc80b95

commit 89b0212697

1 changed files with 14 additions and 13 deletions

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net/ipv6/ip6_tunnel.c

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