David Hildenbrand <david@xxxxxxxxxx> wrote: > I think the correct way to test for a zero page is > is_zero_pfn(page_to_pfn(page). > > Using my_zero_pfn(vmf->address) in do_anonymous_page() these can easily end up > in any process. Should everywhere that is using ZERO_PAGE(0) actually be using my_zero_pfn()? ZERO_PAGE() could do with a kdoc comment saying how to use it. David