On 2/5/26 07:01, Lance Yang wrote: > So for now, neither approach looks good: tracking on the read side adss > cost to GUP-fast, and syncing on the write side e.g. synchronize_rcu() > is too slow on large systems.
Which of the writers truly *need* synchronize_rcu()? What are they doing with the memory that they can't move forward unless it's quiescent *now*?
