From: Hannes Frederic Sowa <han...@stressinduktion.org>
Date: Mon, 08 Jun 2015 21:58:37 +0200
> +static inline u32 ipv4_idev_rt_table(const struct net_device *dev)
> +{
> + u32 table_id;
> +
> + rcu_read_lock();
> + table_id = __in_dev_get_rcu(dev)->rt_table_id;
> + rcu_read_unlock();
> +
> + return table_id != RT_TABLE_UNSPEC ? table_id : RT_TABLE_LOCAL;
> +}
It's a real shame you have to do all of this RCU locking and inetdev
deref, because in more than half of the call sites the idev is already
available.
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