On 14/05/18 10:27 AM, Vlad Buslov wrote:
Currently, all netlink protocol handlers for updating rules, actions and qdiscs are protected with single global rtnl lock which removes any possibility for parallelism. This patch set is a first step to remove rtnl lock dependency from TC rules update path. It updates act API to use atomic operations, rcu and spinlocks for fine-grained locking. It also extend API with functions that are needed to update existing actions for parallel execution. Outline of changes: - Change tc action to use atomic reference and bind counters, rcu mechanism for cookie update. - Extend action ops API with 'delete' function and 'unlocked' flag. - Change action API to work with actions in lockless manner based on primitives implemented in previous patches. - Extend action API with new functions necessary to implement unlocked actions.
Please run all the tdc tests with these changes. This area has almost good test coverage at this point. If you need help just ping me. cheers, jamal -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
