Re: [PATCH 1/4] mm, notifier: Add a lockdep map for invalidate_range_start/end

On Tue, Aug 20, 2019 at 10:18:59AM +0200, Daniel Vetter wrote: > This is a similar idea to the fs_reclaim fake lockdep lock. It's > fairly easy to provoke a specific notifier to be run on a specific > range: Just prep it, and then munmap() it. > > A bit harder, but still doable, is to provoke the

[PATCH 1/4] mm, notifier: Add a lockdep map for invalidate_range_start/end

This is a similar idea to the fs_reclaim fake lockdep lock. It's fairly easy to provoke a specific notifier to be run on a specific range: Just prep it, and then munmap() it. A bit harder, but still doable, is to provoke the mmu notifiers for all the various callchains that might lead to them.