[PATCH 3.16 146/294] ipv6: add rcu grace period before freeing fib6_node

3.16.50-rc1 review patch. If anyone has any objections, please let me know. -- From: Wei Wang commit c5cff8561d2d0006e972bd114afd51f082fee77c upstream. We currently keep rt->rt6i_node pointing to the fib6_node for the route. And some functions make use of

[PATCH 3.16 146/294] ipv6: add rcu grace period before freeing fib6_node

3.16.50-rc1 review patch. If anyone has any objections, please let me know. -- From: Wei Wang commit c5cff8561d2d0006e972bd114afd51f082fee77c upstream. We currently keep rt->rt6i_node pointing to the fib6_node for the route. And some functions make use of this pointer to