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    [IPV4]: Replace __in_dev_get with __in_dev_get_rcu/rtnl · e5ed6399
    Herbert Xu 提交于
    The following patch renames __in_dev_get() to __in_dev_get_rtnl() and
    introduces __in_dev_get_rcu() to cover the second case.
    
    1) RCU with refcnt should use in_dev_get().
    2) RCU without refcnt should use __in_dev_get_rcu().
    3) All others must hold RTNL and use __in_dev_get_rtnl().
    
    There is one exception in net/ipv4/route.c which is in fact a pre-existing
    race condition.  I've marked it as such so that we remember to fix it.
    
    This patch is based on suggestions and prior work by Suzanne Wood and
    Paul McKenney.
    Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    e5ed6399
protocol.c 33.6 KB