Jesper Dangaard Brouer wrote:
On Tue, 10 Mar 2009, Evgeniy Polyakov wrote:
+ call_rcu(&f->rcu_head, ipt_osf_finger_free_rcu);
+ }
+ }
+ rcu_read_unlock();
Should the list_del_rcu() not be protected by a spinlock?
+ rcu_barrier();
In some of my code I call synchronize_net(), is it enough to call
rcu_barrier()?
What is the difference between:
synchronize_rcu()
synchronize_net()
rcu_barrier()
synchronize_net() is just a call to synchronize_rcu(), so their
functionality is equivalent. synchronize_net() is however only
supposed to synchronize with RX packet processing, which is usually
not enough for netfilter. So I prefer synchronize_rcu() for clarity.
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