From: wenxu <we...@ucloud.cn>

This patchset add tunnel_dst_cache and tnl_update_pmtu feature for 
ip_md_tunnel_xmit also bugfix. Then Refactor collect metatdata mode
tunnel xmit to ip_md_tunnel_xmit

wenxu (4):
  ip_tunnel: Add ip tunnel dst_cache in ip_md_tunnel_xmit
  ip_tunnel: Add tnl_update_pmtu in ip_md_tunnel_xmit
  ip_tunnel: Fix route fl4 init in ip_md_tunnel_xmit
  ip_gre: Refactor collect metatdata mode tunnel xmit to
    ip_md_tunnel_xmit

 include/net/ip_tunnels.h |   2 +-
 net/ipv4/ip_gre.c        | 112 ++++++++---------------------------------------
 net/ipv4/ip_tunnel.c     |  62 +++++++++++++++++++-------
 net/ipv4/ipip.c          |   2 +-
 4 files changed, 66 insertions(+), 112 deletions(-)

-- 
1.8.3.1

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