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Xin Long authored
Prior to this patch, ipv6 didn't do mtu lock check in ip6_update_pmtu. It leaded to that mtu lock doesn't really work when receiving the pkt of ICMPV6_PKT_TOOBIG. This patch is to add mtu lock check in __ip6_rt_update_pmtu just as ipv4 did in __ip_rt_update_pmtu. Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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