| Subject | Re: [PATCH 00/14] Modify action API for implementing lockless actions | From | Jamal Hadi Salim <> | Date | Mon, 14 May 2018 14:03:20 -0400 |
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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
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