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H A Droute.cdiff 4d85cd0c2a1ce22a9aca1fa668ba11043c834bbc Fri Apr 20 17:37:59 CDT 2018 David Ahern <dsahern@gmail.com> net/ipv6: Move rcu_read_lock to callers of ip6_rt_cache_alloc

A later patch protects 'from' in rt6_info and this simplifies the
locking needed by it.

With the move, the fib6_info_hold for the uncached_rt is no longer
needed since the rcu_lock is still held.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>