> I completely agree that lookup_address() and friends are unnecessarily fragile, > but I think that attempting to harden them to fix this KVM bug will open a can > of worms and end up delaying getting KVM fixed. So basically, we need to: - choose perf_get_page_size() instead of using any of the lookup_address*() in mm. - add a wrapper layer to adapt: 1) irq disabling/enabling and 2) size -> level translation. Agree?
