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LWN
![[RCU insertion]](https://static.lwn.net/images/2013/urcu/RCUInsertion.png)
![[RCU Deletion]](https://static.lwn.net/images/2013/urcu/RCUDeletion.png)
![[RCU applicability]](https://static.lwn.net/images/2013/urcu/RCUApplicability.png)