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Kuniyuki Iwashima
7d99a7c6c6
RTM_NEWROUTE looks up dev under RCU (ip_route_output(), ipv6_stub->ipv6_dst_lookup_flow(), netdev_get_by_index()), and each neighbour holds the refcnt of its dev. Also, net->mpls.platform_label is protected by a dedicated per-netns mutex. Now, no MPLS code depends on RTNL. Let's drop RTNL for RTM_NEWROUTE, RTM_DELROUTE, and RTM_GETROUTE. Signed-off-by: Kuniyuki Iwashima <[email protected]> Reviewed-by: Guillaume Nault <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>