On Tue, Aug 10, 2021 at 08:57:22AM -0300, Jason Gunthorpe wrote: > I'm not sure there is a real performance win to chase here? Doesn't > this only protect mmap against reset? The mmap isn't performance > sensitive, right? > > If this really needs extra optimization adding a rwsem to the devset > and using that across the whole set would surely be sufficient. Every mmio read or write takes memory_lock.
