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author | Hangbin Liu <liuhangbin@gmail.com> | 2019-12-22 05:51:16 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-04 21:13:39 +0300 |
commit | a36b275f31a5c7c8d65225ced37692efb95ba824 (patch) | |
tree | 80afd036b5f7a1dd91f169d6d689a54bbff478d5 /include/net | |
parent | d7bd38cff2bd24751e0924b8acbba9b8a1f71616 (diff) | |
download | linux-a36b275f31a5c7c8d65225ced37692efb95ba824.tar.xz |
net/dst: do not confirm neighbor for vxlan and geneve pmtu update
[ Upstream commit f081042d128a0c7acbd67611def62e1b52e2d294 ]
When do IPv6 tunnel PMTU update and calls __ip6_rt_update_pmtu() in the end,
we should not call dst_confirm_neigh() as there is no two-way communication.
So disable the neigh confirm for vxlan and geneve pmtu update.
v5: No change.
v4: No change.
v3: Do not remove dst_confirm_neigh, but add a new bool parameter in
dst_ops.update_pmtu to control whether we should do neighbor confirm.
Also split the big patch to small ones for each area.
v2: Remove dst_confirm_neigh in __ip6_rt_update_pmtu.
Fixes: a93bf0ff4490 ("vxlan: update skb dst pmtu on tx path")
Fixes: 52a589d51f10 ("geneve: update skb dst pmtu on tx path")
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Tested-by: Guillaume Nault <gnault@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net')
-rw-r--r-- | include/net/dst.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index c886c45ba286..35ae45fa0758 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -546,7 +546,7 @@ static inline void skb_tunnel_check_pmtu(struct sk_buff *skb, u32 encap_mtu = dst_mtu(encap_dst); if (skb->len > encap_mtu - headroom) - skb_dst_update_pmtu(skb, encap_mtu - headroom); + skb_dst_update_pmtu_no_confirm(skb, encap_mtu - headroom); } #endif /* _NET_DST_H */ |